Built 2026-10-17 (17 October 2026)

Bolivar Wtr Wks Weather Records (USC00400876)

Record envelope, standing records and threshold days for Bolivar Wtr Wks (USC00400876), Tennessee, United States, with 134 years of record.

Key Facts for Bolivar Wtr Wks

  • Bolivar Wtr Wks (USC00400876) is a weather station in Tennessee, United States at 35.27 latitude and -88.99 longitude, 129 m (424 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Bolivar Wtr Wks still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Bolivar Wtr Wks tied a daily record high maximum temperature of 36.7 C (98.1 F) on 20 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Tennessee, United States, 35.27 latitude, -88.99 longitude.
  • Elevation: 129 m (424 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

7 days at or beyond a record
Daily record high and record low at Bolivar Wtr Wks, with 2026 drawn through them The band shows the record high and record low for each calendar day at Bolivar Wtr Wks. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Bolivar Wtr Wks. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Bolivar Wtr Wks, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan26.7 C (80.1 F)-25.6 C (-14.1 F)21.7 C (71.1 F)-13.9 C (7.0 F)
Feb29.4 C (84.9 F)-27.8 C (-18.0 F)25.0 C (77.0 F)-11.1 C (12.0 F)
Mar32.8 C (91.0 F)-14.4 C (6.1 F)31.1 C (88.0 F)-5.6 C (21.9 F)
Apr33.3 C (91.9 F)-4.4 C (24.1 F)30.0 C (86.0 F)3.3 C (37.9 F)
May37.2 C (99.0 F)0.0 C (32.0 F)32.2 C (90.0 F)3.9 C (39.0 F)
Jun41.1 C (106.0 F)4.4 C (39.9 F)33.3 C (91.9 F)13.9 C (57.0 F)
Jul42.8 C (109.0 F)9.4 C (48.9 F)35.0 C (95.0 F)19.4 C (66.9 F)
Aug42.8 C (109.0 F)5.6 C (42.1 F)36.7 C (98.1 F)16.1 C (61.0 F)
Sep39.4 C (102.9 F)-2.2 C (28.0 F)38.3 C (100.9 F)10.0 C (50.0 F)
Oct36.1 C (97.0 F)-6.7 C (19.9 F)33.9 C (93.0 F)9.4 C (48.9 F)
Nov30.6 C (87.1 F)-16.7 C (1.9 F)n/an/a
Dec27.2 C (81.0 F)-21.7 C (-7.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Bolivar Wtr Wks by the year they were set 1,464 records at Bolivar Wtr Wks still stand. 1936 holds the most, with 33. 0102030401895: 191896: 51897: 181898: 111899: 201900: 41901: 251902: 121903: 91904: 71905: 61906: 111907: 201908: 91909: 111910: 121911: 251912: 151913: 61914: 91915: 81916: 51917: 181918: 201919: 71920: 111921: 31926: 131927: 251928: 171929: 61930: 211931: 261932: 121933: 171934: 161935: 201936: 331937: 261938: 101939: 181940: 191941: 121942: 141943: 161944: 131945: 101946: 111947: 181948: 101949: 61950: 161951: 221952: 251953: 81954: 191955: 101956: 41957: 41958: 91959: 61960: 41961: 91962: 241963: 201964: 101965: 151966: 131967: 131968: 71969: 31970: 101971: 41972: 101973: 71974: 81975: 71976: 121977: 51978: 71979: 61980: 181981: 71982: 101983: 151984: 131985: 121986: 131987: 101988: 81989: 201990: 61991: 91992: 101993: 131994: 61995: 121996: 111997: 101998: 151999: 52000: 112001: 52002: 92003: 52004: 92005: 92006: 72007: 112008: 92009: 42010: 52011: 52012: 52013: 62014: 122015: 182016: 62017: 52018: 92019: 112020: 52021: 72022: 112023: 62024: 82025: 42026: 71895190819211938195119641977199020032016
1,464 records at Bolivar Wtr Wks still stand. 1936 holds the most, with 33.
Standing records at Bolivar Wtr Wks by the year they were set
Year setStanding records
189519
18965
189718
189811
189920
19004
190125
190212
19039
19047
19056
190611
190720
19089
190911
191012
191125
191215
19136
19149
19158
19165
191718
191820
19197
192011
19213
192613
192725
192817
19296
193021
193126
193212
193317
193416
193520
193633
193726
193810
193918
194019
194112
194214
194316
194413
194510
194611
194718
194810
19496
195016
195122
195225
19538
195419
195510
19564
19574
19589
19596
19604
19619
196224
196320
196410
196515
196613
196713
19687
19693
197010
19714
197210
19737
19748
19757
197612
19775
19787
19796
198018
19817
198210
198315
198413
198512
198613
198710
19888
198920
19906
19919
199210
199313
19946
199512
199611
199710
199815
19995
200011
20015
20029
20035
20049
20059
20067
200711
20089
20094
20105
20115
20125
20136
201412
201518
20166
20175
20189
201911
20205
20217
202211
20236
20248
20254
20267

All-Time Record Progression

8 new records
When Bolivar Wtr Wks set new all-time records 8 all-time records were set at Bolivar Wtr Wks between 12 July 1930 and 21 January 1985. Each dot is a new record. Record high maximum temperatureRecord daily precipitationRecord low minimum temperatureRecord low maximum temperature12 July 1930: Record high maximum temperature 41.7 C (107.1 F)29 July 1930: Record high maximum temperature 42.8 C (109.0 F)20 January 1935: Record daily precipitation 212.1 mm (8.4 in)18 January 1948: Record low minimum temperature -25.6 C (-14.1 F)2 February 1951: Record low minimum temperature -27.8 C (-18.0 F)11 January 1962: Record low maximum temperature -13.3 C (8.1 F)11 January 1982: Record low maximum temperature -15.0 C (5.0 F)21 January 1985: Record low maximum temperature -17.8 C (0.0 F)193019401950196019701980
8 all-time records were set at Bolivar Wtr Wks between 12 July 1930 and 21 January 1985. Each dot is a new record.
When Bolivar Wtr Wks set new all-time records
DateKindDetail
1930-07-12Record high maximum temperatureRecord high maximum temperature 41.7 C (107.1 F)
1930-07-29Record high maximum temperatureRecord high maximum temperature 42.8 C (109.0 F)
1935-01-20Record daily precipitationRecord daily precipitation 212.1 mm (8.4 in)
1948-01-18Record low minimum temperatureRecord low minimum temperature -25.6 C (-14.1 F)
1951-02-02Record low minimum temperatureRecord low minimum temperature -27.8 C (-18.0 F)
1962-01-11Record low maximum temperatureRecord low maximum temperature -13.3 C (8.1 F)
1982-01-11Record low maximum temperatureRecord low maximum temperature -15.0 C (5.0 F)
1985-01-21Record low maximum temperatureRecord low maximum temperature -17.8 C (0.0 F)

Wettest Day of Each Month

Jan: 212.1 mm (8.4 in)
Record daily precipitation for each month at Bolivar Wtr Wks The wettest day on record for each calendar month at Bolivar Wtr Wks. The most was 212.1 mm (8.4 in) on 20 January 1935. 0100200300 Jan: 212.1 mm (8.4 in), 20 January 1935 Jan Feb: 101.6 mm (4.0 in), 27 February 1913 Feb Mar: 180.3 mm (7.1 in), 17 March 1919 Mar Apr: 135.9 mm (5.4 in), 1 April 1920 Apr May: 176.0 mm (6.9 in), 2 May 2010 May Jun: 97.5 mm (3.8 in), 15 June 1949 Jun Jul: 120.7 mm (4.8 in), 5 July 1967 Jul Aug: 127.0 mm (5.0 in), 7 August 1931 Aug Sep: 176.8 mm (7.0 in), 27 September 2002 Sep Oct: 127.0 mm (5.0 in), 23 October 1935 Oct Nov: 141.0 mm (5.6 in), 19 November 1948 Nov Dec: 127.8 mm (5.0 in), 4 December 1978 Dec
The wettest day on record for each calendar month at Bolivar Wtr Wks. The most was 212.1 mm (8.4 in) on 20 January 1935.
Record daily precipitation for each month at Bolivar Wtr Wks
MonthRecord daily precipitation (mm)Date
Jan212.1 mm (8.4 in)20 January 1935
Feb101.6 mm (4.0 in)27 February 1913
Mar180.3 mm (7.1 in)17 March 1919
Apr135.9 mm (5.4 in)1 April 1920
May176.0 mm (6.9 in)2 May 2010
Jun97.5 mm (3.8 in)15 June 1949
Jul120.7 mm (4.8 in)5 July 1967
Aug127.0 mm (5.0 in)7 August 1931
Sep176.8 mm (7.0 in)27 September 2002
Oct127.0 mm (5.0 in)23 October 1935
Nov141.0 mm (5.6 in)19 November 1948
Dec127.8 mm (5.0 in)4 December 1978

Period of Record Coverage

1894 to 2026
Days with data per year at Bolivar Wtr Wks 129 years of record at Bolivar Wtr Wks, 1894 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1894, 1896, 1899, 1901, 1913, 1917, 1921, 1926 and others. 1894: 15 of 365 days1895: 330 of 365 days1896: 205 of 366 days1897: 355 of 365 days1898: 359 of 365 days1899: 295 of 365 days1900: 352 of 365 days1901: 327 of 365 days1902: 347 of 365 days1903: 356 of 365 days1904: 330 of 366 days1905: 339 of 365 days1906: 341 of 365 days1907: 340 of 365 days1908: 350 of 366 days1909: 329 of 365 days1910: 357 of 365 days1911: 338 of 365 days1912: 351 of 366 days1913: 326 of 365 days1914: 350 of 365 days1915: 353 of 365 days1916: 360 of 366 days1917: 326 of 365 days1918: 363 of 365 days1919: 332 of 365 days1920: 358 of 366 days1921: 102 of 365 days1926: 271 of 365 days1927: 334 of 365 days1928: 347 of 366 days1929: 344 of 365 days1930: 364 of 365 days1931: 364 of 365 days1932: 366 of 366 days1933: 364 of 365 days1934: 365 of 365 days1935: 364 of 365 days1936: 365 of 366 days1937: 364 of 365 days1938: 363 of 365 days1939: 365 of 365 days1940: 366 of 366 days1941: 359 of 365 days1942: 364 of 365 days1943: 364 of 365 days1944: 366 of 366 days1945: 359 of 365 days1946: 364 of 365 days1947: 363 of 365 days1948: 365 of 366 days1949: 361 of 365 days1950: 359 of 365 days1951: 362 of 365 days1952: 361 of 366 days1953: 333 of 365 days1954: 365 of 365 days1955: 362 of 365 days1956: 360 of 366 days1957: 350 of 365 days1958: 365 of 365 days1959: 364 of 365 days1960: 360 of 366 days1961: 363 of 365 days1962: 364 of 365 days1963: 362 of 365 days1964: 365 of 366 days1965: 363 of 365 days1966: 360 of 365 days1967: 335 of 365 days1968: 366 of 366 days1969: 334 of 365 days1970: 315 of 365 days1971: 365 of 365 days1972: 364 of 366 days1973: 365 of 365 days1974: 364 of 365 days1975: 365 of 365 days1976: 364 of 366 days1977: 365 of 365 days1978: 364 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 363 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 364 of 365 days1987: 365 of 365 days1988: 365 of 366 days1989: 365 of 365 days1990: 364 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 363 of 365 days1994: 361 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 363 of 365 days1998: 364 of 365 days1999: 365 of 365 days2000: 365 of 366 days2001: 365 of 365 days2002: 363 of 365 days2003: 362 of 365 days2004: 362 of 366 days2005: 364 of 365 days2006: 361 of 365 days2007: 365 of 365 days2008: 365 of 366 days2009: 363 of 365 days2010: 365 of 365 days2011: 363 of 365 days2012: 364 of 366 days2013: 362 of 365 days2014: 363 of 365 days2015: 362 of 365 days2016: 364 of 366 days2017: 363 of 365 days2018: 351 of 365 days2019: 331 of 365 days2020: 366 of 366 days2021: 318 of 365 days2022: 339 of 365 days2023: 364 of 365 days2024: 361 of 366 days2025: 360 of 365 days2026: 272 of 365 days1900192019401960198020002020
129 years of record at Bolivar Wtr Wks, 1894 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1894, 1896, 1899, 1901, 1913, 1917, 1921, 1926 and others.
Days with data per year at Bolivar Wtr Wks
YearDays with dataShare of yearComplete
1894154%No
189533090%Yes
189620556%No
189735597%Yes
189835998%Yes
189929581%No
190035296%Yes
190132790%No
190234795%Yes
190335698%Yes
190433090%Yes
190533993%Yes
190634193%Yes
190734093%Yes
190835096%Yes
190932990%Yes
191035798%Yes
191133893%Yes
191235196%Yes
191332689%No
191435096%Yes
191535397%Yes
191636098%Yes
191732689%No
191836399%Yes
191933291%Yes
192035898%Yes
192110228%No
192627174%No
192733492%Yes
192834795%Yes
192934494%Yes
1930364100%Yes
1931364100%Yes
1932366100%Yes
1933364100%Yes
1934365100%Yes
1935364100%Yes
1936365100%Yes
1937364100%Yes
193836399%Yes
1939365100%Yes
1940366100%Yes
194135998%Yes
1942364100%Yes
1943364100%Yes
1944366100%Yes
194535998%Yes
1946364100%Yes
194736399%Yes
1948365100%Yes
194936199%Yes
195035998%Yes
195136299%Yes
195236199%Yes
195333391%Yes
1954365100%Yes
195536299%Yes
195636098%Yes
195735096%Yes
1958365100%Yes
1959364100%Yes
196036098%Yes
196136399%Yes
1962364100%Yes
196336299%Yes
1964365100%Yes
196536399%Yes
196636099%Yes
196733592%Yes
1968366100%Yes
196933492%Yes
197031586%No
1971365100%Yes
197236499%Yes
1973365100%Yes
1974364100%Yes
1975365100%Yes
197636499%Yes
1977365100%Yes
1978364100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
198336399%Yes
1984366100%Yes
1985365100%Yes
1986364100%Yes
1987365100%Yes
1988365100%Yes
1989365100%Yes
1990364100%Yes
1991365100%Yes
1992366100%Yes
199336399%Yes
199436199%Yes
1995364100%Yes
1996366100%Yes
199736399%Yes
1998364100%Yes
1999365100%Yes
2000365100%Yes
2001365100%Yes
200236399%Yes
200336299%Yes
200436299%Yes
2005364100%Yes
200636199%Yes
2007365100%Yes
2008365100%Yes
200936399%Yes
2010365100%Yes
201136399%Yes
201236499%Yes
201336299%Yes
201436399%Yes
201536299%Yes
201636499%Yes
201736399%Yes
201835196%Yes
201933191%Yes
2020366100%Yes
202131887%No
202233993%Yes
2023364100%Yes
202436199%Yes
202536099%Yes
202627275%No

Latest Records

20
Latest records at Bolivar Wtr Wks
DateStationRecordValueBeat old record byOld record stoodSignificance
20 September 2026Bolivar Wtr Wks, USdaily high max (Tie, Provisional)36.7 C (98.1 F)tie95 years9 of 100 (Routine)
17 September 2026Bolivar Wtr Wks, USdaily high min (Tie, Provisional)21.7 C (71.1 F)tie115 years10 of 100 (Routine)
15 September 2026Bolivar Wtr Wks, USdaily high min (Tie, Provisional)21.7 C (71.1 F)tie115 years10 of 100 (Routine)
11 September 2026Bolivar Wtr Wks, USdaily high min (Tie, Provisional)22.2 C (72.0 F)tie4 years2 of 100 (Routine)
9 September 2026Bolivar Wtr Wks, USdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)89 years37 of 100 (Notable)
8 September 2026Bolivar Wtr Wks, USdaily high min (Tie, Provisional)21.7 C (71.1 F)tie96 years9 of 100 (Routine)
6 September 2026Bolivar Wtr Wks, USdaily high max (Tie, Provisional)38.3 C (100.9 F)tie36 years5 of 100 (Routine)
3 August 2026Bolivar Wtr Wks, USdaily low max25.0 C (77.0 F)1.7 C (3.1 F)52 years30 of 100 (Routine)
28 May 2026Bolivar Wtr Wks, USdaily high min (Tie)21.1 C (70.0 F)tie113 years10 of 100 (Routine)
20 May 2026Bolivar Wtr Wks, USdaily rain57.2 mm (2.3 in)20.6 mm (0.8 in)116 years52 of 100 (Notable)
19 May 2026Bolivar Wtr Wks, USdaily high min21.7 C (71.1 F)0.6 C (1.1 F)8 years13 of 100 (Routine)
29 April 2026Bolivar Wtr Wks, USdaily rain74.7 mm (2.9 in)16.5 mm (0.6 in)113 years49 of 100 (Notable)
1 April 2026Bolivar Wtr Wks, USdaily high min17.8 C (64.0 F)1.7 C (3.1 F)121 years43 of 100 (Notable)
23 March 2026Bolivar Wtr Wks, USdaily high max31.1 C (88.0 F)1.1 C (2.0 F)87 years37 of 100 (Notable)
22 March 2026Bolivar Wtr Wks, USdaily high max30.0 C (86.0 F)0.6 C (1.1 F)119 years40 of 100 (Notable)
17 March 2026Bolivar Wtr Wks, USdaily low max (Tie)3.9 C (39.0 F)tie97 years9 of 100 (Routine)
11 March 2026Bolivar Wtr Wks, USdaily high min19.4 C (66.9 F)1.1 C (2.0 F)71 years32 of 100 (Routine)
6 March 2026Bolivar Wtr Wks, USdaily high max27.2 C (81.0 F)0.5 C (0.9 F)116 years40 of 100 (Notable)
5 March 2026Bolivar Wtr Wks, USdaily high min (Tie)17.8 C (64.0 F)tie71 years7 of 100 (Routine)
5 March 2026Bolivar Wtr Wks, USdaily high max (Tie)27.2 C (81.0 F)tie4 years2 of 100 (Routine)

Climate Trend

106 complete years, 1897 to 2025
Annual mean temperature at Bolivar Wtr Wks as warming stripes, 1897 to 2025 One stripe for each of 106 complete years at Bolivar Wtr Wks, 1897 to 2025. Blue stripes are years cooler than the station's own mean of 15.5 C (59.9 F); red stripes are warmer. The coolest year was 2014, at 13.8 C (56.9 F), and the warmest was 1998, at 17.1 C (62.9 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1897: 15.7 C, +0.2 C from the station mean1898: 15.5 C, 0.0 C from the station mean1900: 15.8 C, +0.3 C from the station mean1901: 14.6 C, -0.9 C from the station mean1902: 14.9 C, -0.6 C from the station mean1903: 14.5 C, -1.0 C from the station mean1905: 14.6 C, -0.9 C from the station mean1906: 14.8 C, -0.7 C from the station mean1907: 15.5 C, 0.0 C from the station mean1908: 15.8 C, +0.3 C from the station mean1910: 14.8 C, -0.7 C from the station mean1911: 16.3 C, +0.8 C from the station mean1912: 14.3 C, -1.2 C from the station mean1915: 15.4 C, -0.1 C from the station mean1916: 15.0 C, -0.5 C from the station mean1918: 15.7 C, +0.2 C from the station mean1920: 15.7 C, +0.2 C from the station mean1928: 15.3 C, -0.2 C from the station mean1930: 15.7 C, +0.2 C from the station mean1931: 16.7 C, +1.2 C from the station mean1932: 16.3 C, +0.8 C from the station mean1933: 16.9 C, +1.4 C from the station mean1934: 16.4 C, +0.9 C from the station mean1935: 16.1 C, +0.6 C from the station mean1936: 16.1 C, +0.6 C from the station mean1937: 15.8 C, +0.3 C from the station mean1938: 17.0 C, +1.5 C from the station mean1939: 16.6 C, +1.1 C from the station mean1940: 14.7 C, -0.8 C from the station mean1941: 16.5 C, +1.0 C from the station mean1942: 15.8 C, +0.3 C from the station mean1943: 15.3 C, -0.2 C from the station mean1944: 15.4 C, -0.1 C from the station mean1945: 15.6 C, +0.1 C from the station mean1946: 15.9 C, +0.4 C from the station mean1947: 14.7 C, -0.8 C from the station mean1948: 15.1 C, -0.4 C from the station mean1949: 16.0 C, +0.5 C from the station mean1950: 15.2 C, -0.3 C from the station mean1951: 15.4 C, -0.1 C from the station mean1952: 15.9 C, +0.4 C from the station mean1954: 16.8 C, +1.3 C from the station mean1955: 16.1 C, +0.6 C from the station mean1956: 16.4 C, +0.9 C from the station mean1958: 15.1 C, -0.4 C from the station mean1959: 16.4 C, +0.9 C from the station mean1960: 15.3 C, -0.2 C from the station mean1961: 15.8 C, +0.3 C from the station mean1962: 15.2 C, -0.3 C from the station mean1963: 14.6 C, -0.9 C from the station mean1964: 15.3 C, -0.2 C from the station mean1965: 15.9 C, +0.4 C from the station mean1966: 14.8 C, -0.7 C from the station mean1968: 14.5 C, -1.0 C from the station mean1971: 15.1 C, -0.4 C from the station mean1972: 14.9 C, -0.6 C from the station mean1973: 15.6 C, +0.1 C from the station mean1974: 15.1 C, -0.4 C from the station mean1975: 15.0 C, -0.5 C from the station mean1976: 14.0 C, -1.5 C from the station mean1977: 15.2 C, -0.3 C from the station mean1978: 14.3 C, -1.2 C from the station mean1979: 14.1 C, -1.4 C from the station mean1980: 15.1 C, -0.4 C from the station mean1981: 14.9 C, -0.6 C from the station mean1982: 15.1 C, -0.4 C from the station mean1983: 14.7 C, -0.8 C from the station mean1984: 15.1 C, -0.4 C from the station mean1985: 14.9 C, -0.6 C from the station mean1986: 15.8 C, +0.3 C from the station mean1987: 15.7 C, +0.2 C from the station mean1988: 14.8 C, -0.7 C from the station mean1989: 14.8 C, -0.7 C from the station mean1990: 16.5 C, +1.0 C from the station mean1991: 16.2 C, +0.7 C from the station mean1992: 15.2 C, -0.3 C from the station mean1993: 15.1 C, -0.4 C from the station mean1994: 15.6 C, +0.1 C from the station mean1995: 15.5 C, 0.0 C from the station mean1996: 15.2 C, -0.3 C from the station mean1997: 15.1 C, -0.4 C from the station mean1998: 17.1 C, +1.6 C from the station mean1999: 16.7 C, +1.2 C from the station mean2000: 15.9 C, +0.4 C from the station mean2001: 15.9 C, +0.4 C from the station mean2002: 15.9 C, +0.4 C from the station mean2003: 15.2 C, -0.3 C from the station mean2004: 15.7 C, +0.2 C from the station mean2005: 15.7 C, +0.2 C from the station mean2006: 15.6 C, +0.1 C from the station mean2007: 16.3 C, +0.8 C from the station mean2008: 14.7 C, -0.8 C from the station mean2009: 14.8 C, -0.7 C from the station mean2010: 15.0 C, -0.5 C from the station mean2011: 15.5 C, 0.0 C from the station mean2012: 16.2 C, +0.7 C from the station mean2013: 14.4 C, -1.1 C from the station mean2014: 13.8 C, -1.7 C from the station mean2015: 15.5 C, 0.0 C from the station mean2016: 16.5 C, +1.0 C from the station mean2017: 16.3 C, +0.8 C from the station mean2018: 15.6 C, +0.1 C from the station mean2020: 15.7 C, +0.2 C from the station mean2023: 16.1 C, +0.6 C from the station mean2024: 16.3 C, +0.8 C from the station mean2025: 15.9 C, +0.4 C from the station mean1897191019201930194019501960197019801990200020102020
One stripe for each of 106 complete years at Bolivar Wtr Wks, 1897 to 2025. Blue stripes are years cooler than the station's own mean of 15.5 C (59.9 F); red stripes are warmer. The coolest year was 2014, at 13.8 C (56.9 F), and the warmest was 1998, at 17.1 C (62.9 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Bolivar Wtr Wks as warming stripes, 1897 to 2025
YearAnnual mean temperatureDifference from the station mean
189715.7 C+0.22 C
189815.5 C+0.05 C
190015.8 C+0.31 C
190114.6 C-0.87 C
190214.9 C-0.59 C
190314.5 C-1.00 C
190514.6 C-0.91 C
190614.8 C-0.74 C
190715.5 C-0.02 C
190815.8 C+0.31 C
191014.8 C-0.67 C
191116.3 C+0.76 C
191214.3 C-1.15 C
191515.4 C-0.09 C
191615.0 C-0.51 C
191815.7 C+0.17 C
192015.7 C+0.19 C
192815.3 C-0.20 C
193015.7 C+0.23 C
193116.7 C+1.20 C
193216.3 C+0.80 C
193316.9 C+1.44 C
193416.4 C+0.90 C
193516.1 C+0.64 C
193616.1 C+0.59 C
193715.8 C+0.29 C
193817.0 C+1.54 C
193916.6 C+1.10 C
194014.7 C-0.78 C
194116.5 C+1.04 C
194215.8 C+0.26 C
194315.3 C-0.16 C
194415.4 C-0.08 C
194515.6 C+0.14 C
194615.9 C+0.43 C
194714.7 C-0.84 C
194815.1 C-0.35 C
194916.0 C+0.54 C
195015.2 C-0.26 C
195115.4 C-0.10 C
195215.9 C+0.36 C
195416.8 C+1.30 C
195516.1 C+0.60 C
195616.4 C+0.94 C
195815.1 C-0.40 C
195916.4 C+0.91 C
196015.3 C-0.22 C
196115.8 C+0.28 C
196215.2 C-0.30 C
196314.6 C-0.86 C
196415.3 C-0.15 C
196515.9 C+0.44 C
196614.8 C-0.67 C
196814.5 C-0.96 C
197115.1 C-0.40 C
197214.9 C-0.58 C
197315.6 C+0.06 C
197415.1 C-0.36 C
197515.0 C-0.49 C
197614.0 C-1.54 C
197715.2 C-0.28 C
197814.3 C-1.15 C
197914.1 C-1.37 C
198015.1 C-0.38 C
198114.9 C-0.59 C
198215.1 C-0.37 C
198314.7 C-0.77 C
198415.1 C-0.38 C
198514.9 C-0.59 C
198615.8 C+0.35 C
198715.7 C+0.16 C
198814.8 C-0.72 C
198914.8 C-0.65 C
199016.5 C+1.03 C
199116.2 C+0.74 C
199215.2 C-0.33 C
199315.1 C-0.42 C
199415.6 C+0.13 C
199515.5 C+0.05 C
199615.2 C-0.31 C
199715.1 C-0.40 C
199817.1 C+1.65 C
199916.7 C+1.23 C
200015.9 C+0.44 C
200115.9 C+0.45 C
200215.9 C+0.39 C
200315.2 C-0.32 C
200415.7 C+0.18 C
200515.7 C+0.22 C
200615.6 C+0.09 C
200716.3 C+0.80 C
200814.7 C-0.78 C
200914.8 C-0.72 C
201015.0 C-0.49 C
201115.5 C-0.02 C
201216.2 C+0.74 C
201314.4 C-1.13 C
201413.8 C-1.67 C
201515.5 C-0.04 C
201616.5 C+0.97 C
201716.3 C+0.82 C
201815.6 C+0.14 C
202015.7 C+0.19 C
202316.1 C+0.60 C
202416.3 C+0.80 C
202515.9 C+0.43 C

The fitted trend in annual mean temperature here over 1897 to 2025 is 0.00 C (-0.03 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.01 F (-0.06 to 0.07) per decade. The slope is a straight line fitted to 106 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Bolivar Wtr Wks
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.00 C (-0.03 to 0.04) per decade0.01 F (-0.06 to 0.07) per decade1897 to 2025106Not clearly different from zero
Mean daily maximum-0.03 C (-0.08 to 0.02) per decade-0.06 F (-0.14 to 0.03) per decade1897 to 2025106Not clearly different from zero
Mean daily minimum0.04 C (0.00 to 0.08) per decade0.07 F (-0.01 to 0.14) per decade1897 to 2025106Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1893 to 2026
Yearly extremes at Bolivar Wtr Wks: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.8 C (109.0 F)193037.2 C (99.0 F)129
Coldest night (TNn)-27.8 C (-18.0 F)1951-13.9 C (7.0 F)129
Wettest day (Rx1day)212.1 mm (8.4 in)193585.6 mm (3.4 in)130
Wettest five days (Rx5day)352.4 mm (13.9 in)1906133.4 mm (5.3 in)130
Longest dry spell (CDD)42 days199921 days130

Hottest day (TXx)

Hottest day (TXx) at Bolivar Wtr Wks by year The hottest day of the year at Bolivar Wtr Wks, 1893 to 2026. The record is 42.8 C (109.0 F) in 1930, marked on the chart; the median year is 37.2 C (99.0 F). 10203040501900192019401960198020002020Record: 42.8 C (109.0 F) in 1930
The hottest day of the year at Bolivar Wtr Wks, 1893 to 2026. The record is 42.8 C (109.0 F) in 1930, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Bolivar Wtr Wks by year
YearHottest day (TXx)
1893n/a
189418.3 C (64.9 F)
189536.7 C (98.1 F)
189631.7 C (89.1 F)
189738.9 C (102.0 F)
189837.2 C (99.0 F)
189937.8 C (100.0 F)
190036.1 C (97.0 F)
190141.1 C (106.0 F)
190238.9 C (102.0 F)
190336.1 C (97.0 F)
190435.0 C (95.0 F)
190535.6 C (96.1 F)
190636.1 C (97.0 F)
190737.8 C (100.0 F)
190836.1 C (97.0 F)
190936.7 C (98.1 F)
191035.0 C (95.0 F)
191140.0 C (104.0 F)
191237.2 C (99.0 F)
191337.2 C (99.0 F)
191438.3 C (100.9 F)
191537.8 C (100.0 F)
191635.6 C (96.1 F)
191736.7 C (98.1 F)
191837.8 C (100.0 F)
191937.8 C (100.0 F)
192035.0 C (95.0 F)
192136.7 C (98.1 F)
192638.9 C (102.0 F)
192737.8 C (100.0 F)
192837.2 C (99.0 F)
192937.2 C (99.0 F)
193042.8 C (109.0 F)
193139.4 C (102.9 F)
193238.3 C (100.9 F)
193338.3 C (100.9 F)
193442.8 C (109.0 F)
193541.1 C (106.0 F)
193641.1 C (106.0 F)
193740.6 C (105.1 F)
193838.9 C (102.0 F)
193938.9 C (102.0 F)
194038.3 C (100.9 F)
194140.0 C (104.0 F)
194238.9 C (102.0 F)
194340.6 C (105.1 F)
194437.8 C (100.0 F)
194537.8 C (100.0 F)
194635.0 C (95.0 F)
194738.9 C (102.0 F)
194836.1 C (97.0 F)
194935.0 C (95.0 F)
195035.0 C (95.0 F)
195140.0 C (104.0 F)
195241.7 C (107.1 F)
195338.3 C (100.9 F)
195439.4 C (102.9 F)
195536.1 C (97.0 F)
195638.3 C (100.9 F)
195735.0 C (95.0 F)
195836.7 C (98.1 F)
195935.6 C (96.1 F)
196037.2 C (99.0 F)
196135.6 C (96.1 F)
196238.9 C (102.0 F)
196336.7 C (98.1 F)
196437.8 C (100.0 F)
196537.2 C (99.0 F)
196638.9 C (102.0 F)
196735.0 C (95.0 F)
196837.2 C (99.0 F)
196938.9 C (102.0 F)
197037.8 C (100.0 F)
197136.1 C (97.0 F)
197235.6 C (96.1 F)
197335.0 C (95.0 F)
197436.1 C (97.0 F)
197536.1 C (97.0 F)
197636.1 C (97.0 F)
197738.3 C (100.9 F)
197837.8 C (100.0 F)
197935.0 C (95.0 F)
198040.6 C (105.1 F)
198135.6 C (96.1 F)
198235.6 C (96.1 F)
198338.3 C (100.9 F)
198436.1 C (97.0 F)
198535.0 C (95.0 F)
198638.3 C (100.9 F)
198737.2 C (99.0 F)
198838.3 C (100.9 F)
198935.0 C (95.0 F)
199038.3 C (100.9 F)
199136.1 C (97.0 F)
199233.9 C (93.0 F)
199336.1 C (97.0 F)
199433.3 C (91.9 F)
199536.1 C (97.0 F)
199635.6 C (96.1 F)
199737.2 C (99.0 F)
199837.2 C (99.0 F)
199938.3 C (100.9 F)
200040.0 C (104.0 F)
200135.6 C (96.1 F)
200236.1 C (97.0 F)
200334.4 C (93.9 F)
200435.0 C (95.0 F)
200536.7 C (98.1 F)
200638.9 C (102.0 F)
200741.7 C (107.1 F)
200836.1 C (97.0 F)
200935.0 C (95.0 F)
201037.8 C (100.0 F)
201138.9 C (102.0 F)
201238.9 C (102.0 F)
201335.0 C (95.0 F)
201434.4 C (93.9 F)
201535.6 C (96.1 F)
201636.7 C (98.1 F)
201736.7 C (98.1 F)
201835.0 C (95.0 F)
201936.1 C (97.0 F)
202035.6 C (96.1 F)
202135.0 C (95.0 F)
202237.8 C (100.0 F)
202336.1 C (97.0 F)
202437.8 C (100.0 F)
202537.2 C (99.0 F)
202638.3 C (100.9 F)

Coldest night (TNn)

Coldest night (TNn) at Bolivar Wtr Wks by year The coldest night of the year at Bolivar Wtr Wks, 1893 to 2026. The record is -27.8 C (-18.0 F) in 1951, marked on the chart; the median year is -13.9 C (7.0 F). -30-20-1001900192019401960198020002020Record: -27.8 C (-18.0 F) in 1951
The coldest night of the year at Bolivar Wtr Wks, 1893 to 2026. The record is -27.8 C (-18.0 F) in 1951, marked on the chart; the median year is -13.9 C (7.0 F).
Coldest night (TNn) at Bolivar Wtr Wks by year
YearColdest night (TNn)
1893n/a
1894-10.0 C (14.0 F)
1895-15.0 C (5.0 F)
1896-11.1 C (12.0 F)
1897-17.2 C (1.0 F)
1898-14.4 C (6.1 F)
1899-25.0 C (-13.0 F)
1900-15.6 C (3.9 F)
1901-18.9 C (-2.0 F)
1902-11.1 C (12.0 F)
1903-18.3 C (-0.9 F)
1904-13.3 C (8.1 F)
1905-16.7 C (1.9 F)
1906-11.7 C (10.9 F)
1907-10.0 C (14.0 F)
1908-12.2 C (10.0 F)
1909-13.9 C (7.0 F)
1910-20.0 C (-4.0 F)
1911-15.6 C (3.9 F)
1912-22.8 C (-9.0 F)
1913-9.4 C (15.1 F)
1914-13.3 C (8.1 F)
1915-10.0 C (14.0 F)
1916-15.0 C (5.0 F)
1917-15.0 C (5.0 F)
1918-23.3 C (-9.9 F)
1919-13.9 C (7.0 F)
1920-11.1 C (12.0 F)
1921-4.4 C (24.1 F)
1926-11.7 C (10.9 F)
1927-15.0 C (5.0 F)
1928-18.3 C (-0.9 F)
1929-15.6 C (3.9 F)
1930-20.0 C (-4.0 F)
1931-11.7 C (10.9 F)
1932-13.3 C (8.1 F)
1933-17.8 C (0.0 F)
1934-13.9 C (7.0 F)
1935-13.9 C (7.0 F)
1936-17.8 C (0.0 F)
1937-15.0 C (5.0 F)
1938-10.0 C (14.0 F)
1939-7.8 C (18.0 F)
1940-22.8 C (-9.0 F)
1941-10.0 C (14.0 F)
1942-19.4 C (-2.9 F)
1943-13.9 C (7.0 F)
1944-11.7 C (10.9 F)
1945-14.4 C (6.1 F)
1946-13.9 C (7.0 F)
1947-13.3 C (8.1 F)
1948-25.6 C (-14.1 F)
1949-16.1 C (3.0 F)
1950-16.7 C (1.9 F)
1951-27.8 C (-18.0 F)
1952-8.3 C (17.1 F)
1953-7.2 C (19.0 F)
1954-10.0 C (14.0 F)
1955-13.3 C (8.1 F)
1956-11.7 C (10.9 F)
1957-13.9 C (7.0 F)
1958-18.9 C (-2.0 F)
1959-15.0 C (5.0 F)
1960-13.3 C (8.1 F)
1961-13.3 C (8.1 F)
1962-19.4 C (-2.9 F)
1963-22.2 C (-8.0 F)
1964-12.2 C (10.0 F)
1965-14.4 C (6.1 F)
1966-18.9 C (-2.0 F)
1967-12.2 C (10.0 F)
1968-13.9 C (7.0 F)
1969-11.7 C (10.9 F)
1970-17.2 C (1.0 F)
1971-17.2 C (1.0 F)
1972-16.1 C (3.0 F)
1973-10.6 C (12.9 F)
1974-9.4 C (15.1 F)
1975-13.3 C (8.1 F)
1976-15.6 C (3.9 F)
1977-18.3 C (-0.9 F)
1978-13.3 C (8.1 F)
1979-16.7 C (1.9 F)
1980-11.7 C (10.9 F)
1981-13.9 C (7.0 F)
1982-20.0 C (-4.0 F)
1983-18.9 C (-2.0 F)
1984-16.7 C (1.9 F)
1985-23.9 C (-11.0 F)
1986-13.3 C (8.1 F)
1987-8.9 C (16.0 F)
1988-17.8 C (0.0 F)
1989-21.7 C (-7.1 F)
1990-12.8 C (9.0 F)
1991-10.6 C (12.9 F)
1992-11.1 C (12.0 F)
1993-9.4 C (15.1 F)
1994-15.0 C (5.0 F)
1995-12.8 C (9.0 F)
1996-16.1 C (3.0 F)
1997-16.7 C (1.9 F)
1998-8.3 C (17.1 F)
1999-13.9 C (7.0 F)
2000-12.2 C (10.0 F)
2001-13.9 C (7.0 F)
2002-10.0 C (14.0 F)
2003-15.6 C (3.9 F)
2004-11.7 C (10.9 F)
2005-10.0 C (14.0 F)
2006-11.7 C (10.9 F)
2007-10.6 C (12.9 F)
2008-11.7 C (10.9 F)
2009-13.9 C (7.0 F)
2010-13.9 C (7.0 F)
2011-14.4 C (6.1 F)
2012-8.3 C (17.1 F)
2013-8.9 C (16.0 F)
2014-17.2 C (1.0 F)
2015-15.6 C (3.9 F)
2016-10.0 C (14.0 F)
2017-15.0 C (5.0 F)
2018-15.6 C (3.9 F)
2019-11.1 C (12.0 F)
2020-8.3 C (17.1 F)
2021-16.7 C (1.9 F)
2022-16.1 C (3.0 F)
2023-6.7 C (19.9 F)
2024-21.7 C (-7.1 F)
2025-13.9 C (7.0 F)
2026-13.9 C (7.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Bolivar Wtr Wks by year The wettest day of the year at Bolivar Wtr Wks, 1893 to 2026. The record is 212.1 mm (8.4 in) in 1935, marked on the chart; the median year is 85.6 mm (3.4 in). 0501001502002501900192019401960198020002020Record: 212.1 mm (8.4 in) in 1935
The wettest day of the year at Bolivar Wtr Wks, 1893 to 2026. The record is 212.1 mm (8.4 in) in 1935, marked on the chart; the median year is 85.6 mm (3.4 in).
Wettest day (Rx1day) at Bolivar Wtr Wks by year
YearWettest day (Rx1day)
189359.7 mm (2.4 in)
189495.3 mm (3.8 in)
189571.1 mm (2.8 in)
1896126.7 mm (5.0 in)
189757.2 mm (2.3 in)
189894.0 mm (3.7 in)
189968.1 mm (2.7 in)
190084.8 mm (3.3 in)
190183.1 mm (3.3 in)
190296.0 mm (3.8 in)
190362.2 mm (2.4 in)
190477.5 mm (3.1 in)
190592.7 mm (3.6 in)
1906131.3 mm (5.2 in)
190788.4 mm (3.5 in)
190859.2 mm (2.3 in)
190958.9 mm (2.3 in)
1910129.8 mm (5.1 in)
1911102.4 mm (4.0 in)
191278.7 mm (3.1 in)
1913101.6 mm (4.0 in)
191467.6 mm (2.7 in)
191578.5 mm (3.1 in)
191678.0 mm (3.1 in)
191769.9 mm (2.8 in)
191846.2 mm (1.8 in)
1919180.3 mm (7.1 in)
1920135.9 mm (5.4 in)
192162.5 mm (2.5 in)
192661.0 mm (2.4 in)
192796.5 mm (3.8 in)
192867.3 mm (2.6 in)
192961.0 mm (2.4 in)
1930102.4 mm (4.0 in)
1931127.0 mm (5.0 in)
1932110.5 mm (4.4 in)
193383.8 mm (3.3 in)
193487.6 mm (3.4 in)
1935212.1 mm (8.4 in)
193699.1 mm (3.9 in)
193758.2 mm (2.3 in)
193865.8 mm (2.6 in)
1939104.6 mm (4.1 in)
194057.9 mm (2.3 in)
194154.6 mm (2.1 in)
1942123.7 mm (4.9 in)
194383.3 mm (3.3 in)
194491.4 mm (3.6 in)
194566.0 mm (2.6 in)
194696.8 mm (3.8 in)
194784.3 mm (3.3 in)
1948141.0 mm (5.6 in)
194997.5 mm (3.8 in)
195098.8 mm (3.9 in)
195176.7 mm (3.0 in)
195250.8 mm (2.0 in)
1953104.1 mm (4.1 in)
195490.2 mm (3.6 in)
195593.5 mm (3.7 in)
195677.2 mm (3.0 in)
195796.5 mm (3.8 in)
1958161.8 mm (6.4 in)
195955.9 mm (2.2 in)
196067.6 mm (2.7 in)
196154.6 mm (2.1 in)
196295.0 mm (3.7 in)
1963104.4 mm (4.1 in)
196499.8 mm (3.9 in)
196577.5 mm (3.1 in)
196681.8 mm (3.2 in)
1967120.7 mm (4.8 in)
1968110.5 mm (4.4 in)
196985.3 mm (3.4 in)
197063.0 mm (2.5 in)
197191.4 mm (3.6 in)
197284.6 mm (3.3 in)
1973112.3 mm (4.4 in)
197474.2 mm (2.9 in)
1975132.8 mm (5.2 in)
197680.0 mm (3.1 in)
197788.9 mm (3.5 in)
1978127.8 mm (5.0 in)
1979100.6 mm (4.0 in)
1980108.7 mm (4.3 in)
198163.2 mm (2.5 in)
198297.8 mm (3.9 in)
198384.8 mm (3.3 in)
198486.4 mm (3.4 in)
198568.6 mm (2.7 in)
1986107.4 mm (4.2 in)
198797.8 mm (3.9 in)
198877.0 mm (3.0 in)
1989104.4 mm (4.1 in)
1990101.6 mm (4.0 in)
199173.7 mm (2.9 in)
199281.5 mm (3.2 in)
199363.0 mm (2.5 in)
199494.2 mm (3.7 in)
199595.5 mm (3.8 in)
199678.2 mm (3.1 in)
1997109.0 mm (4.3 in)
199878.7 mm (3.1 in)
1999136.4 mm (5.4 in)
200047.0 mm (1.9 in)
2001118.4 mm (4.7 in)
2002176.8 mm (7.0 in)
2003124.7 mm (4.9 in)
200462.7 mm (2.5 in)
200584.8 mm (3.3 in)
200689.4 mm (3.5 in)
200765.5 mm (2.6 in)
2008119.4 mm (4.7 in)
200974.7 mm (2.9 in)
2010176.0 mm (6.9 in)
2011102.4 mm (4.0 in)
201257.7 mm (2.3 in)
201370.4 mm (2.8 in)
2014117.1 mm (4.6 in)
201577.0 mm (3.0 in)
201674.4 mm (2.9 in)
2017153.4 mm (6.0 in)
201889.7 mm (3.5 in)
201982.6 mm (3.3 in)
202085.3 mm (3.4 in)
202165.3 mm (2.6 in)
202285.9 mm (3.4 in)
202363.2 mm (2.5 in)
202472.4 mm (2.9 in)
2025127.5 mm (5.0 in)
202674.7 mm (2.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Bolivar Wtr Wks by year The wettest five days of the year at Bolivar Wtr Wks, 1893 to 2026. The record is 352.4 mm (13.9 in) in 1906, marked on the chart; the median year is 133.4 mm (5.3 in). 01002003004001900192019401960198020002020Record: 352.4 mm (13.9 in) in 1906
The wettest five days of the year at Bolivar Wtr Wks, 1893 to 2026. The record is 352.4 mm (13.9 in) in 1906, marked on the chart; the median year is 133.4 mm (5.3 in).
Wettest five days (Rx5day) at Bolivar Wtr Wks by year
YearWettest five days (Rx5day)
1893123.8 mm (4.9 in)
1894133.4 mm (5.3 in)
189590.6 mm (3.6 in)
1896148.3 mm (5.8 in)
189789.2 mm (3.5 in)
1898173.8 mm (6.8 in)
189978.0 mm (3.1 in)
1900134.9 mm (5.3 in)
1901115.2 mm (4.5 in)
1902176.1 mm (6.9 in)
190370.3 mm (2.8 in)
1904153.4 mm (6.0 in)
1905152.3 mm (6.0 in)
1906352.4 mm (13.9 in)
1907152.7 mm (6.0 in)
190884.9 mm (3.3 in)
190970.3 mm (2.8 in)
1910162.3 mm (6.4 in)
1911158.6 mm (6.2 in)
1912117.6 mm (4.6 in)
1913112.3 mm (4.4 in)
191495.5 mm (3.8 in)
1915111.3 mm (4.4 in)
1916132.6 mm (5.2 in)
191798.3 mm (3.9 in)
191897.3 mm (3.8 in)
1919206.4 mm (8.1 in)
1920167.7 mm (6.6 in)
1921120.6 mm (4.7 in)
1926186.8 mm (7.4 in)
1927160.5 mm (6.3 in)
1928101.9 mm (4.0 in)
1929103.9 mm (4.1 in)
1930151.1 mm (5.9 in)
1931184.9 mm (7.3 in)
1932128.3 mm (5.1 in)
1933160.7 mm (6.3 in)
1934127.0 mm (5.0 in)
1935350.5 mm (13.8 in)
1936117.0 mm (4.6 in)
1937193.6 mm (7.6 in)
1938161.1 mm (6.3 in)
1939104.6 mm (4.1 in)
194068.8 mm (2.7 in)
194181.8 mm (3.2 in)
1942140.2 mm (5.5 in)
1943133.8 mm (5.3 in)
1944137.2 mm (5.4 in)
1945133.6 mm (5.3 in)
1946263.4 mm (10.4 in)
1947126.7 mm (5.0 in)
1948163.1 mm (6.4 in)
1949179.0 mm (7.0 in)
1950124.6 mm (4.9 in)
1951115.1 mm (4.5 in)
195278.8 mm (3.1 in)
1953122.1 mm (4.8 in)
1954137.7 mm (5.4 in)
1955145.5 mm (5.7 in)
1956126.0 mm (5.0 in)
1957140.2 mm (5.5 in)
1958257.8 mm (10.1 in)
1959119.4 mm (4.7 in)
196096.6 mm (3.8 in)
196191.2 mm (3.6 in)
1962108.4 mm (4.3 in)
1963143.0 mm (5.6 in)
1964113.5 mm (4.5 in)
1965139.7 mm (5.5 in)
1966133.3 mm (5.2 in)
1967123.7 mm (4.9 in)
1968150.7 mm (5.9 in)
1969105.4 mm (4.1 in)
1970105.4 mm (4.1 in)
1971115.1 mm (4.5 in)
1972163.1 mm (6.4 in)
1973180.7 mm (7.1 in)
1974120.4 mm (4.7 in)
1975254.7 mm (10.0 in)
1976123.2 mm (4.9 in)
1977146.0 mm (5.7 in)
1978162.3 mm (6.4 in)
1979146.0 mm (5.7 in)
1980196.1 mm (7.7 in)
198192.5 mm (3.6 in)
1982123.9 mm (4.9 in)
1983139.6 mm (5.5 in)
1984135.9 mm (5.4 in)
198591.2 mm (3.6 in)
1986175.0 mm (6.9 in)
1987195.1 mm (7.7 in)
198896.0 mm (3.8 in)
1989151.7 mm (6.0 in)
1990145.0 mm (5.7 in)
1991121.5 mm (4.8 in)
1992104.6 mm (4.1 in)
199396.3 mm (3.8 in)
1994118.9 mm (4.7 in)
1995153.4 mm (6.0 in)
1996126.3 mm (5.0 in)
1997125.0 mm (4.9 in)
1998145.2 mm (5.7 in)
1999145.5 mm (5.7 in)
200081.2 mm (3.2 in)
2001250.2 mm (9.9 in)
2002199.7 mm (7.9 in)
2003176.0 mm (6.9 in)
2004116.8 mm (4.6 in)
2005122.7 mm (4.8 in)
200696.7 mm (3.8 in)
2007106.8 mm (4.2 in)
2008121.4 mm (4.8 in)
2009104.9 mm (4.1 in)
2010200.3 mm (7.9 in)
2011158.5 mm (6.2 in)
201279.6 mm (3.1 in)
2013144.3 mm (5.7 in)
2014136.2 mm (5.4 in)
2015120.9 mm (4.8 in)
2016163.8 mm (6.4 in)
2017163.0 mm (6.4 in)
2018153.5 mm (6.0 in)
2019159.6 mm (6.3 in)
2020123.6 mm (4.9 in)
2021120.9 mm (4.8 in)
2022178.4 mm (7.0 in)
202397.8 mm (3.9 in)
2024138.0 mm (5.4 in)
2025276.5 mm (10.9 in)
2026132.4 mm (5.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Bolivar Wtr Wks by year The longest dry spell of the year at Bolivar Wtr Wks, 1893 to 2026. The record is 42 days in 1999, marked on the chart; the median year is 21 days. 010203040501900192019401960198020002020Record: 42 days in 1999
The longest dry spell of the year at Bolivar Wtr Wks, 1893 to 2026. The record is 42 days in 1999, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Bolivar Wtr Wks by year
YearLongest dry spell (CDD)
189319 days
189412 days
189525 days
18969 days
189736 days
189811 days
189916 days
190017 days
190121 days
190219 days
190323 days
190427 days
190519 days
190635 days
190720 days
190825 days
190921 days
191036 days
191128 days
191224 days
191320 days
191436 days
191522 days
191620 days
191721 days
191823 days
191918 days
192024 days
192110 days
192617 days
192721 days
192831 days
192923 days
193023 days
193132 days
193216 days
193319 days
193423 days
193524 days
193619 days
193715 days
193822 days
193925 days
194025 days
194120 days
194216 days
194328 days
194425 days
194513 days
194617 days
194719 days
194819 days
194910 days
195013 days
195128 days
195231 days
195322 days
195428 days
195523 days
195625 days
195721 days
195822 days
195922 days
196017 days
196122 days
196225 days
196334 days
196421 days
196528 days
196619 days
196721 days
196821 days
196919 days
197017 days
197125 days
197214 days
197315 days
197419 days
197521 days
197613 days
197726 days
197827 days
197914 days
198021 days
198116 days
198214 days
198320 days
198423 days
198517 days
198617 days
198719 days
198837 days
198917 days
199025 days
199124 days
199227 days
199316 days
199414 days
199523 days
199632 days
199717 days
199836 days
199942 days
200028 days
200125 days
200219 days
200320 days
200426 days
200530 days
200617 days
200725 days
200822 days
200918 days
201024 days
201116 days
201224 days
201319 days
201414 days
201516 days
201623 days
201724 days
201816 days
201938 days
202012 days
202116 days
202221 days
202321 days
202426 days
202519 days
202621 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

106 years with a frost

Across 106 years with a frost, the median last spring frost at Bolivar Wtr Wks falls on 6 April and the median first autumn frost on 26 October, which leaves a median of 204 days between them.

In 1993 to 2025 the median growing season was 211 days. That is 8 days more than in 1897 to 1941.

Fitted over all years, the growing season changes by +1.1 days per decade at this station.

Frost dates and growing season at Bolivar Wtr Wks
MeasureMedian, all yearsEarliest period (1897 to 1941)Recent period (1993 to 2025)Recent against earliestFitted trend
Last spring frost6 April3 April1 April2 days earlier-0.3 days per decade
First autumn frost26 October26 October31 October5 days later+0.8 days per decade
Growing days204 days203 days211 days8 days more+1.1 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

110 years, 1898 to 2025

A day with at least 88.4 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 191.3 mm (7.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Bolivar Wtr Wks: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years88.4 mm (3.5 in)
5 years114.5 mm (4.5 in)
10 years132.3 mm (5.2 in)
25 years155.6 mm (6.1 in)
50 years173.3 mm (6.8 in)
100 years191.3 mm (7.5 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 110 years of values from 1898 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 212.1 mm (8.4 in) in 1935; 180.3 mm (7.1 in) in 1919; 176.8 mm (7.0 in) in 2002.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Bolivar Wtr Wks, at 2005. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2005 ran 0.3 C (0.5 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Bolivar Wtr Wks, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
2005-0.3-0.5likely5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2008 to 2025 against 1961 to 1990

Over 2008 to 2025, Bolivar Wtr Wks had a mean temperature of 15.5 C (59.9 F) and 1,460.2 mm (57.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are University (United States, 111 km away), Huntsville Intnl AP (United States, 212 km away) and Pulaski Wwtp (United States, 177 km away).

Climate twins of Bolivar Wtr Wks: stations whose 1961 to 1990 climate is closest to its 2008 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
UniversityUnited States111 km (69 mi)15.4 C (59.7 F)1,430.3 mm (56.3 in)0.39
Huntsville Intnl APUnited States212 km (132 mi)15.8 C (60.5 F)1,452.9 mm (57.2 in)0.48
Pulaski WwtpUnited States177 km (110 mi)15.6 C (60.1 F)1,423.6 mm (56.0 in)0.49

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Bolivar Wtr Wks standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Bolivar Wtr Wks threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).