Built 2026-10-17 (17 October 2026)

Conception Weather Records (USC00231822)

Record envelope, standing records and threshold days for Conception (USC00231822), Missouri, United States, with 134 years of record.

Key Facts for Conception

  • Conception (USC00231822) is a weather station in Missouri, United States at 40.24 latitude and -94.68 longitude, 338 m (1,108 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Conception still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Conception set a daily record high minimum temperature of 18.9 C (66.0 F) on 12 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Missouri, United States, 40.24 latitude, -94.68 longitude.
  • Elevation: 338 m (1,108 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

6 days at or beyond a record
Daily record high and record low at Conception, with 2026 drawn through them The band shows the record high and record low for each calendar day at Conception. The lines show the 2026 daily maximum and minimum. 6 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 Conception. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Conception, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan20.6 C (69.1 F)-34.4 C (-29.9 F)18.9 C (66.0 F)-23.9 C (-11.0 F)
Feb27.8 C (82.0 F)-33.9 C (-29.0 F)22.8 C (73.0 F)-20.6 C (-5.1 F)
Mar34.4 C (93.9 F)-25.6 C (-14.1 F)34.4 C (93.9 F)-15.6 C (3.9 F)
Apr35.0 C (95.0 F)-13.3 C (8.1 F)29.4 C (84.9 F)1.1 C (34.0 F)
May36.7 C (98.1 F)-3.9 C (25.0 F)31.7 C (89.1 F)4.4 C (39.9 F)
Jun40.0 C (104.0 F)3.9 C (39.0 F)32.2 C (90.0 F)12.8 C (55.0 F)
Jul42.8 C (109.0 F)7.2 C (45.0 F)36.7 C (98.1 F)17.2 C (63.0 F)
Aug43.3 C (109.9 F)4.4 C (39.9 F)33.9 C (93.0 F)13.3 C (55.9 F)
Sep42.2 C (108.0 F)-2.8 C (27.0 F)37.2 C (99.0 F)12.8 C (55.0 F)
Oct35.0 C (95.0 F)-18.3 C (-0.9 F)30.0 C (86.0 F)7.2 C (45.0 F)
Nov28.9 C (84.0 F)-21.7 C (-7.1 F)n/an/a
Dec22.2 C (72.0 F)-30.6 C (-23.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Conception by the year they were set 1,464 records at Conception still stand. 1936 holds the most, with 57. 02040601893: 91894: 181895: 171896: 111897: 101898: 91899: 181900: 51901: 261902: 211903: 81904: 31905: 91906: 91907: 151908: 131909: 121910: 81911: 221912: 121913: 191914: 81915: 111916: 61917: 161918: 171919: 101920: 31921: 121922: 81923: 121924: 151925: 171926: 111927: 121928: 111929: 81930: 251931: 211932: 81933: 201934: 311935: 41936: 571937: 171938: 231939: 251940: 111941: 91942: 141943: 81944: 141945: 81946: 161947: 141948: 81949: 91950: 161951: 101952: 131953: 131954: 151955: 71956: 191957: 21958: 71959: 71960: 61961: 21962: 121963: 61964: 91965: 151966: 121967: 101968: 61969: 61970: 91971: 51972: 131973: 51974: 81975: 51976: 101977: 91978: 41979: 121980: 121981: 31982: 101983: 141984: 91985: 101986: 121987: 111988: 51989: 191990: 101991: 191992: 101993: 61994: 61995: 61996: 41997: 51998: 101999: 62000: 122001: 72002: 132003: 62004: 82005: 32006: 42007: 12008: 42009: 52010: 32011: 72012: 152013: 62014: 162015: 32016: 32017: 52018: 112019: 62020: 72021: 132022: 92023: 92024: 112025: 102026: 141893190719211935194919631977199120052019
1,464 records at Conception still stand. 1936 holds the most, with 57.
Standing records at Conception by the year they were set
Year setStanding records
18939
189418
189517
189611
189710
18989
189918
19005
190126
190221
19038
19043
19059
19069
190715
190813
190912
19108
191122
191212
191319
19148
191511
19166
191716
191817
191910
19203
192112
19228
192312
192415
192517
192611
192712
192811
19298
193025
193121
19328
193320
193431
19354
193657
193717
193823
193925
194011
19419
194214
19438
194414
19458
194616
194714
19488
19499
195016
195110
195213
195313
195415
19557
195619
19572
19587
19597
19606
19612
196212
19636
19649
196515
196612
196710
19686
19696
19709
19715
197213
19735
19748
19755
197610
19779
19784
197912
198012
19813
198210
198314
19849
198510
198612
198711
19885
198919
199010
199119
199210
19936
19946
19956
19964
19975
199810
19996
200012
20017
200213
20036
20048
20053
20064
20071
20084
20095
20103
20117
201215
20136
201416
20153
20163
20175
201811
20196
20207
202113
20229
20239
202411
202510
202614

All-Time Record Progression

4 new records
When Conception set new all-time records 4 all-time records were set at Conception between 8 August 1934 and 23 December 2022. Each dot is a new record. Record high maximum temperatureRecord low maximum temperature8 August 1934: Record high maximum temperature 43.3 C (109.9 F)22 December 1989: Record low maximum temperature -22.8 C (-9.0 F)3 February 1996: Record low maximum temperature -23.3 C (-9.9 F)23 December 2022: Record low maximum temperature -24.4 C (-11.9 F)193519501965198019952010
4 all-time records were set at Conception between 8 August 1934 and 23 December 2022. Each dot is a new record.
When Conception set new all-time records
DateKindDetail
1934-08-08Record high maximum temperatureRecord high maximum temperature 43.3 C (109.9 F)
1989-12-22Record low maximum temperatureRecord low maximum temperature -22.8 C (-9.0 F)
1996-02-03Record low maximum temperatureRecord low maximum temperature -23.3 C (-9.9 F)
2022-12-23Record low maximum temperatureRecord low maximum temperature -24.4 C (-11.9 F)

Wettest Day of Each Month

Jul: 166.4 mm (6.6 in)
Record daily precipitation for each month at Conception The wettest day on record for each calendar month at Conception. The most was 166.4 mm (6.6 in) on 7 July 1898. 050100150200 Jan: 38.6 mm (1.5 in), 31 January 2025 Jan Feb: 61.0 mm (2.4 in), 25 February 1912 Feb Mar: 46.0 mm (1.8 in), 13 March 1961 Mar Apr: 67.1 mm (2.6 in), 27 April 2016 Apr May: 104.1 mm (4.1 in), 29 May 1982 May Jun: 150.4 mm (5.9 in), 24 June 2025 Jun Jul: 166.4 mm (6.6 in), 7 July 1898 Jul Aug: 116.6 mm (4.6 in), 29 August 1989 Aug Sep: 129.5 mm (5.1 in), 22 September 1993 Sep Oct: 114.6 mm (4.5 in), 11 October 1973 Oct Nov: 61.0 mm (2.4 in), 17 November 1928 Nov Dec: 67.3 mm (2.6 in), 8 December 1980 Dec
The wettest day on record for each calendar month at Conception. The most was 166.4 mm (6.6 in) on 7 July 1898.
Record daily precipitation for each month at Conception
MonthRecord daily precipitation (mm)Date
Jan38.6 mm (1.5 in)31 January 2025
Feb61.0 mm (2.4 in)25 February 1912
Mar46.0 mm (1.8 in)13 March 1961
Apr67.1 mm (2.6 in)27 April 2016
May104.1 mm (4.1 in)29 May 1982
Jun150.4 mm (5.9 in)24 June 2025
Jul166.4 mm (6.6 in)7 July 1898
Aug116.6 mm (4.6 in)29 August 1989
Sep129.5 mm (5.1 in)22 September 1993
Oct114.6 mm (4.5 in)11 October 1973
Nov61.0 mm (2.4 in)17 November 1928
Dec67.3 mm (2.6 in)8 December 1980

Period of Record Coverage

1893 to 2026
Days with data per year at Conception 134 years of record at Conception, 1893 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1912, 1913, 1932, 1982, 2026. 1893: 280 of 365 days1894: 308 of 365 days1895: 360 of 365 days1896: 366 of 366 days1897: 362 of 365 days1898: 359 of 365 days1899: 360 of 365 days1900: 358 of 365 days1901: 351 of 365 days1902: 345 of 365 days1903: 362 of 365 days1904: 365 of 366 days1905: 365 of 365 days1906: 363 of 365 days1907: 356 of 365 days1908: 364 of 366 days1909: 363 of 365 days1910: 363 of 365 days1911: 365 of 365 days1912: 213 of 366 days1913: 320 of 365 days1914: 364 of 365 days1915: 365 of 365 days1916: 330 of 366 days1917: 364 of 365 days1918: 363 of 365 days1919: 365 of 365 days1920: 366 of 366 days1921: 364 of 365 days1922: 365 of 365 days1923: 365 of 365 days1924: 366 of 366 days1925: 365 of 365 days1926: 365 of 365 days1927: 365 of 365 days1928: 365 of 366 days1929: 365 of 365 days1930: 363 of 365 days1931: 364 of 365 days1932: 321 of 366 days1933: 365 of 365 days1934: 363 of 365 days1935: 357 of 365 days1936: 366 of 366 days1937: 365 of 365 days1938: 365 of 365 days1939: 363 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 364 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 365 of 366 days1949: 365 of 365 days1950: 364 of 365 days1951: 365 of 365 days1952: 365 of 366 days1953: 364 of 365 days1954: 365 of 365 days1955: 357 of 365 days1956: 362 of 366 days1957: 365 of 365 days1958: 363 of 365 days1959: 364 of 365 days1960: 364 of 366 days1961: 362 of 365 days1962: 358 of 365 days1963: 363 of 365 days1964: 364 of 366 days1965: 364 of 365 days1966: 364 of 365 days1967: 365 of 365 days1968: 365 of 366 days1969: 364 of 365 days1970: 365 of 365 days1971: 364 of 365 days1972: 364 of 366 days1973: 363 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 362 of 366 days1977: 365 of 365 days1978: 363 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 322 of 365 days1983: 356 of 365 days1984: 341 of 366 days1985: 331 of 365 days1986: 332 of 365 days1987: 361 of 365 days1988: 365 of 366 days1989: 352 of 365 days1990: 360 of 365 days1991: 355 of 365 days1992: 359 of 366 days1993: 359 of 365 days1994: 359 of 365 days1995: 333 of 365 days1996: 363 of 366 days1997: 355 of 365 days1998: 355 of 365 days1999: 358 of 365 days2000: 361 of 366 days2001: 352 of 365 days2002: 345 of 365 days2003: 364 of 365 days2004: 364 of 366 days2005: 364 of 365 days2006: 365 of 365 days2007: 364 of 365 days2008: 366 of 366 days2009: 362 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 364 of 366 days2013: 359 of 365 days2014: 365 of 365 days2015: 360 of 365 days2016: 346 of 366 days2017: 364 of 365 days2018: 347 of 365 days2019: 350 of 365 days2020: 365 of 366 days2021: 362 of 365 days2022: 352 of 365 days2023: 356 of 365 days2024: 359 of 366 days2025: 344 of 365 days2026: 273 of 365 days1900192019401960198020002020
134 years of record at Conception, 1893 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1912, 1913, 1932, 1982, 2026.
Days with data per year at Conception
YearDays with dataShare of yearComplete
189328077%No
189430884%No
189536099%Yes
1896366100%Yes
189736299%Yes
189835998%Yes
189936099%Yes
190035898%Yes
190135196%Yes
190234595%Yes
190336299%Yes
1904365100%Yes
1905365100%Yes
190636399%Yes
190735698%Yes
190836499%Yes
190936399%Yes
191036399%Yes
1911365100%Yes
191221358%No
191332088%No
1914364100%Yes
1915365100%Yes
191633090%Yes
1917364100%Yes
191836399%Yes
1919365100%Yes
1920366100%Yes
1921364100%Yes
1922365100%Yes
1923365100%Yes
1924366100%Yes
1925365100%Yes
1926365100%Yes
1927365100%Yes
1928365100%Yes
1929365100%Yes
193036399%Yes
1931364100%Yes
193232188%No
1933365100%Yes
193436399%Yes
193535798%Yes
1936366100%Yes
1937365100%Yes
1938365100%Yes
193936399%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943364100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948365100%Yes
1949365100%Yes
1950364100%Yes
1951365100%Yes
1952365100%Yes
1953364100%Yes
1954365100%Yes
195535798%Yes
195636299%Yes
1957365100%Yes
195836399%Yes
1959364100%Yes
196036499%Yes
196136299%Yes
196235898%Yes
196336399%Yes
196436499%Yes
1965364100%Yes
1966364100%Yes
1967365100%Yes
1968365100%Yes
1969364100%Yes
1970365100%Yes
1971364100%Yes
197236499%Yes
197336399%Yes
1974365100%Yes
1975364100%Yes
197636299%Yes
1977365100%Yes
197836399%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
198232288%No
198335698%Yes
198434193%Yes
198533191%Yes
198633291%Yes
198736199%Yes
1988365100%Yes
198935296%Yes
199036099%Yes
199135597%Yes
199235998%Yes
199335998%Yes
199435998%Yes
199533391%Yes
199636399%Yes
199735597%Yes
199835597%Yes
199935898%Yes
200036199%Yes
200135296%Yes
200234595%Yes
2003364100%Yes
200436499%Yes
2005364100%Yes
2006365100%Yes
2007364100%Yes
2008366100%Yes
200936299%Yes
2010365100%Yes
2011365100%Yes
201236499%Yes
201335998%Yes
2014365100%Yes
201536099%Yes
201634695%Yes
2017364100%Yes
201834795%Yes
201935096%Yes
2020365100%Yes
202136299%Yes
202235296%Yes
202335698%Yes
202435998%Yes
202534494%Yes
202627375%No

Latest Records

20
Latest records at Conception
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Conception, USdaily high min (Provisional)18.9 C (66.0 F)0.6 C (1.1 F)126 years41 of 100 (Notable)
3 September 2026Conception, USdaily high min (Provisional)24.4 C (75.9 F)0.5 C (0.9 F)87 years37 of 100 (Notable)
12 August 2026Conception, USdaily high min (Tie)25.0 C (77.0 F)tie130 years10 of 100 (Routine)
11 August 2026Conception, USdaily high min26.1 C (79.0 F)0.5 C (0.9 F)129 years41 of 100 (Notable)
30 June 2026Conception, USdaily high min25.6 C (78.1 F)1.2 C (2.2 F)48 years27 of 100 (Routine)
10 June 2026Conception, USdaily high min (Tie)23.3 C (73.9 F)tie115 years10 of 100 (Routine)
5 June 2026Conception, USdaily rain117.1 mm (4.6 in)2.3 mm (0.09 in)65 years30 of 100 (Routine)
17 May 2026Conception, USdaily rain98.0 mm (3.9 in)38.1 mm (1.5 in)11 years40 of 100 (Notable)
14 April 2026Conception, USdaily high min17.8 C (64.0 F)1.1 C (2.0 F)23 years18 of 100 (Routine)
13 April 2026Conception, USdaily high min17.2 C (63.0 F)2.2 C (4.0 F)100 years44 of 100 (Notable)
12 April 2026Conception, USdaily rain29.7 mm (1.2 in)3.8 mm (0.15 in)120 years43 of 100 (Notable)
31 March 2026Conception, USdaily high max30.6 C (87.1 F)2.3 C (4.1 F)80 years36 of 100 (Notable)
31 March 2026Conception, USdaily high min16.1 C (61.0 F)2.8 C (5.0 F)13 years18 of 100 (Routine)
27 March 2026Conception, USdaily high max29.4 C (84.9 F)0.5 C (0.9 F)35 years20 of 100 (Routine)
26 March 2026Conception, USdaily high max32.2 C (90.0 F)2.8 C (5.0 F)116 years43 of 100 (Notable)
22 March 2026Conception, USmonthly high max34.4 C (93.9 F)2.2 C (4.0 F)116 years52 of 100 (Notable)
21 March 2026Conception, USdaily high min (Tie)13.9 C (57.0 F)tie72 years7 of 100 (Routine)
17 March 2026Conception, USdaily low max-5.0 C (23.0 F)3.3 C (5.9 F)65 years33 of 100 (Routine)
10 March 2026Conception, USdaily high max25.6 C (78.1 F)1.2 C (2.2 F)108 years41 of 100 (Notable)
6 March 2026Conception, USdaily rain19.6 mm (0.8 in)1.1 mm (0.04 in)33 years20 of 100 (Routine)

Climate Trend

119 complete years, 1894 to 2025
Annual mean temperature at Conception as warming stripes, 1894 to 2025 One stripe for each of 119 complete years at Conception, 1894 to 2025. Blue stripes are years cooler than the station's own mean of 11.2 C (52.2 F); red stripes are warmer. The coolest year was 2008, at 8.6 C (47.4 F), and the warmest was 1931, at 13.6 C (56.5 F). The strongest colour marks a difference of 2.7 C (4.9 F). 1894: 10.8 C, -0.4 C from the station mean1895: 11.0 C, -0.3 C from the station mean1896: 11.5 C, +0.3 C from the station mean1897: 11.4 C, +0.2 C from the station mean1898: 11.0 C, -0.3 C from the station mean1899: 11.1 C, -0.2 C from the station mean1900: 11.8 C, +0.6 C from the station mean1901: 11.4 C, +0.1 C from the station mean1902: 10.1 C, -1.2 C from the station mean1903: 10.6 C, -0.7 C from the station mean1904: 10.0 C, -1.3 C from the station mean1905: 10.5 C, -0.8 C from the station mean1906: 11.2 C, -0.1 C from the station mean1907: 10.2 C, -1.0 C from the station mean1908: 11.0 C, -0.2 C from the station mean1909: 10.6 C, -0.7 C from the station mean1910: 11.6 C, +0.4 C from the station mean1911: 12.0 C, +0.7 C from the station mean1914: 11.6 C, +0.3 C from the station mean1915: 10.6 C, -0.7 C from the station mean1917: 9.9 C, -1.4 C from the station mean1918: 12.0 C, +0.8 C from the station mean1919: 11.3 C, 0.0 C from the station mean1920: 11.3 C, 0.0 C from the station mean1921: 13.5 C, +2.3 C from the station mean1922: 12.3 C, +1.1 C from the station mean1923: 11.7 C, +0.5 C from the station mean1924: 10.3 C, -0.9 C from the station mean1925: 11.5 C, +0.3 C from the station mean1926: 11.5 C, +0.2 C from the station mean1927: 11.6 C, +0.4 C from the station mean1928: 11.9 C, +0.7 C from the station mean1929: 10.3 C, -0.9 C from the station mean1930: 12.2 C, +1.0 C from the station mean1931: 13.6 C, +2.3 C from the station mean1933: 12.8 C, +1.5 C from the station mean1934: 12.8 C, +1.5 C from the station mean1935: 11.0 C, -0.2 C from the station mean1936: 11.6 C, +0.4 C from the station mean1937: 10.8 C, -0.4 C from the station mean1938: 13.4 C, +2.1 C from the station mean1939: 13.3 C, +2.0 C from the station mean1940: 10.6 C, -0.7 C from the station mean1941: 12.9 C, +1.6 C from the station mean1942: 11.4 C, +0.1 C from the station mean1943: 11.3 C, 0.0 C from the station mean1944: 11.5 C, +0.3 C from the station mean1945: 11.0 C, -0.2 C from the station mean1946: 13.0 C, +1.7 C from the station mean1947: 11.7 C, +0.4 C from the station mean1948: 11.7 C, +0.4 C from the station mean1949: 11.6 C, +0.3 C from the station mean1950: 10.6 C, -0.6 C from the station mean1951: 10.3 C, -1.0 C from the station mean1952: 12.2 C, +1.0 C from the station mean1953: 13.2 C, +2.0 C from the station mean1954: 13.4 C, +2.1 C from the station mean1955: 12.1 C, +0.9 C from the station mean1956: 12.7 C, +1.4 C from the station mean1957: 11.6 C, +0.4 C from the station mean1958: 11.3 C, 0.0 C from the station mean1959: 11.5 C, +0.3 C from the station mean1960: 10.9 C, -0.4 C from the station mean1961: 11.2 C, -0.1 C from the station mean1962: 11.2 C, 0.0 C from the station mean1963: 11.9 C, +0.6 C from the station mean1964: 11.7 C, +0.5 C from the station mean1965: 10.5 C, -0.8 C from the station mean1966: 10.3 C, -0.9 C from the station mean1967: 10.1 C, -1.2 C from the station mean1968: 10.3 C, -1.0 C from the station mean1969: 9.9 C, -1.3 C from the station mean1970: 10.4 C, -0.9 C from the station mean1971: 10.7 C, -0.5 C from the station mean1972: 9.9 C, -1.3 C from the station mean1973: 11.1 C, -0.2 C from the station mean1974: 11.0 C, -0.2 C from the station mean1975: 11.2 C, 0.0 C from the station mean1976: 10.8 C, -0.4 C from the station mean1977: 10.9 C, -0.4 C from the station mean1978: 9.5 C, -1.7 C from the station mean1979: 9.0 C, -2.3 C from the station mean1980: 10.6 C, -0.7 C from the station mean1981: 11.3 C, 0.0 C from the station mean1989: 10.0 C, -1.3 C from the station mean1990: 11.7 C, +0.5 C from the station mean1991: 11.4 C, +0.2 C from the station mean1992: 10.7 C, -0.5 C from the station mean1993: 9.5 C, -1.7 C from the station mean1994: 10.9 C, -0.3 C from the station mean1996: 9.7 C, -1.6 C from the station mean1997: 10.4 C, -0.9 C from the station mean1998: 12.1 C, +0.9 C from the station mean1999: 11.7 C, +0.5 C from the station mean2000: 11.4 C, +0.2 C from the station mean2001: 11.5 C, +0.3 C from the station mean2003: 11.0 C, -0.3 C from the station mean2004: 10.7 C, -0.6 C from the station mean2005: 11.2 C, -0.1 C from the station mean2006: 11.6 C, +0.3 C from the station mean2007: 10.4 C, -0.8 C from the station mean2008: 8.6 C, -2.7 C from the station mean2009: 9.8 C, -1.5 C from the station mean2010: 10.9 C, -0.3 C from the station mean2011: 11.2 C, -0.1 C from the station mean2012: 13.3 C, +2.1 C from the station mean2013: 10.2 C, -1.1 C from the station mean2014: 9.8 C, -1.5 C from the station mean2015: 11.5 C, +0.3 C from the station mean2016: 12.4 C, +1.2 C from the station mean2017: 12.2 C, +0.9 C from the station mean2018: 10.9 C, -0.3 C from the station mean2019: 10.5 C, -0.7 C from the station mean2020: 11.8 C, +0.5 C from the station mean2021: 12.3 C, +1.0 C from the station mean2022: 10.8 C, -0.5 C from the station mean2023: 12.2 C, +1.0 C from the station mean2024: 12.8 C, +1.6 C from the station mean2025: 11.7 C, +0.4 C from the station mean18941900191019201930194019501960197019801990200020102020
One stripe for each of 119 complete years at Conception, 1894 to 2025. Blue stripes are years cooler than the station's own mean of 11.2 C (52.2 F); red stripes are warmer. The coolest year was 2008, at 8.6 C (47.4 F), and the warmest was 1931, at 13.6 C (56.5 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Conception as warming stripes, 1894 to 2025
YearAnnual mean temperatureDifference from the station mean
189410.8 C-0.41 C
189511.0 C-0.29 C
189611.5 C+0.29 C
189711.4 C+0.18 C
189811.0 C-0.26 C
189911.1 C-0.19 C
190011.8 C+0.56 C
190111.4 C+0.10 C
190210.1 C-1.17 C
190310.6 C-0.67 C
190410.0 C-1.26 C
190510.5 C-0.76 C
190611.2 C-0.07 C
190710.2 C-1.03 C
190811.0 C-0.25 C
190910.6 C-0.68 C
191011.6 C+0.36 C
191112.0 C+0.74 C
191411.6 C+0.31 C
191510.6 C-0.67 C
19179.9 C-1.38 C
191812.0 C+0.78 C
191911.3 C+0.00 C
192011.3 C+0.00 C
192113.5 C+2.29 C
192212.3 C+1.08 C
192311.7 C+0.46 C
192410.3 C-0.92 C
192511.5 C+0.28 C
192611.5 C+0.21 C
192711.6 C+0.37 C
192811.9 C+0.66 C
192910.3 C-0.94 C
193012.2 C+0.99 C
193113.6 C+2.34 C
193312.8 C+1.54 C
193412.8 C+1.51 C
193511.0 C-0.21 C
193611.6 C+0.35 C
193710.8 C-0.41 C
193813.4 C+2.13 C
193913.3 C+2.02 C
194010.6 C-0.66 C
194112.9 C+1.60 C
194211.4 C+0.13 C
194311.3 C+0.03 C
194411.5 C+0.27 C
194511.0 C-0.23 C
194613.0 C+1.72 C
194711.7 C+0.40 C
194811.7 C+0.41 C
194911.6 C+0.33 C
195010.6 C-0.65 C
195110.3 C-0.99 C
195212.2 C+0.98 C
195313.2 C+1.97 C
195413.4 C+2.11 C
195512.1 C+0.89 C
195612.7 C+1.42 C
195711.6 C+0.37 C
195811.3 C+0.02 C
195911.5 C+0.27 C
196010.9 C-0.39 C
196111.2 C-0.09 C
196211.2 C-0.02 C
196311.9 C+0.61 C
196411.7 C+0.48 C
196510.5 C-0.78 C
196610.3 C-0.93 C
196710.1 C-1.18 C
196810.3 C-0.99 C
19699.9 C-1.34 C
197010.4 C-0.89 C
197110.7 C-0.52 C
19729.9 C-1.32 C
197311.1 C-0.19 C
197411.0 C-0.25 C
197511.2 C-0.02 C
197610.8 C-0.41 C
197710.9 C-0.39 C
19789.5 C-1.73 C
19799.0 C-2.28 C
198010.6 C-0.70 C
198111.3 C+0.01 C
198910.0 C-1.27 C
199011.7 C+0.46 C
199111.4 C+0.16 C
199210.7 C-0.55 C
19939.5 C-1.74 C
199410.9 C-0.31 C
19969.7 C-1.57 C
199710.4 C-0.86 C
199812.1 C+0.85 C
199911.7 C+0.46 C
200011.4 C+0.16 C
200111.5 C+0.26 C
200311.0 C-0.30 C
200410.7 C-0.58 C
200511.2 C-0.07 C
200611.6 C+0.31 C
200710.4 C-0.83 C
20088.6 C-2.67 C
20099.8 C-1.46 C
201010.9 C-0.33 C
201111.2 C-0.07 C
201213.3 C+2.09 C
201310.2 C-1.10 C
20149.8 C-1.50 C
201511.5 C+0.26 C
201612.4 C+1.18 C
201712.2 C+0.90 C
201810.9 C-0.35 C
201910.5 C-0.71 C
202011.8 C+0.51 C
202112.3 C+1.01 C
202210.8 C-0.49 C
202312.2 C+0.99 C
202412.8 C+1.56 C
202511.7 C+0.43 C

The fitted trend in annual mean temperature here over 1894 to 2025 is -0.03 C (-0.07 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.05 F (-0.13 to 0.04) per decade. The slope is a straight line fitted to 119 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Conception
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.03 C (-0.07 to 0.02) per decade-0.05 F (-0.13 to 0.04) per decade1894 to 2025119Not clearly different from zero
Mean daily maximum-0.04 C (-0.10 to 0.02) per decade-0.08 F (-0.18 to 0.03) per decade1894 to 2025119Not clearly different from zero
Mean daily minimum-0.01 C (-0.05 to 0.03) per decade-0.02 F (-0.10 to 0.06) per decade1894 to 2025119Not 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 Conception: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.3 C (109.9 F)193436.7 C (98.1 F)134
Coldest night (TNn)-34.4 C (-29.9 F)1912-24.4 C (-11.9 F)134
Wettest day (Rx1day)166.4 mm (6.6 in)189867.4 mm (2.7 in)134
Wettest five days (Rx5day)249.4 mm (9.8 in)1993104.8 mm (4.1 in)134
Longest dry spell (CDD)61 days195227 days134

Hottest day (TXx)

Hottest day (TXx) at Conception by year The hottest day of the year at Conception, 1893 to 2026. The record is 43.3 C (109.9 F) in 1934, marked on the chart; the median year is 36.7 C (98.1 F). 303540451900192019401960198020002020Record: 43.3 C (109.9 F) in 1934
The hottest day of the year at Conception, 1893 to 2026. The record is 43.3 C (109.9 F) in 1934, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Conception by year
YearHottest day (TXx)
189332.2 C (90.0 F)
189437.2 C (99.0 F)
189534.4 C (93.9 F)
189633.3 C (91.9 F)
189735.6 C (96.1 F)
189835.0 C (95.0 F)
189935.0 C (95.0 F)
190033.9 C (93.0 F)
190140.0 C (104.0 F)
190233.3 C (91.9 F)
190335.6 C (96.1 F)
190434.4 C (93.9 F)
190535.6 C (96.1 F)
190636.7 C (98.1 F)
190734.4 C (93.9 F)
190834.4 C (93.9 F)
190938.3 C (100.9 F)
191040.6 C (105.1 F)
191142.2 C (108.0 F)
191237.2 C (99.0 F)
191340.0 C (104.0 F)
191437.8 C (100.0 F)
191533.3 C (91.9 F)
191634.4 C (93.9 F)
191740.0 C (104.0 F)
191842.8 C (109.0 F)
191938.9 C (102.0 F)
192038.3 C (100.9 F)
192138.9 C (102.0 F)
192241.1 C (106.0 F)
192338.9 C (102.0 F)
192436.7 C (98.1 F)
192539.4 C (102.9 F)
192641.1 C (106.0 F)
192736.7 C (98.1 F)
192836.7 C (98.1 F)
192937.8 C (100.0 F)
193041.7 C (107.1 F)
193140.0 C (104.0 F)
193237.2 C (99.0 F)
193339.4 C (102.9 F)
193443.3 C (109.9 F)
193538.9 C (102.0 F)
193643.3 C (109.9 F)
193738.9 C (102.0 F)
193840.0 C (104.0 F)
193942.2 C (108.0 F)
194040.0 C (104.0 F)
194139.4 C (102.9 F)
194236.7 C (98.1 F)
194337.8 C (100.0 F)
194437.2 C (99.0 F)
194537.2 C (99.0 F)
194638.3 C (100.9 F)
194740.0 C (104.0 F)
194836.1 C (97.0 F)
194936.1 C (97.0 F)
195035.0 C (95.0 F)
195136.1 C (97.0 F)
195240.0 C (104.0 F)
195340.0 C (104.0 F)
195442.2 C (108.0 F)
195540.0 C (104.0 F)
195639.4 C (102.9 F)
195738.3 C (100.9 F)
195835.0 C (95.0 F)
195935.6 C (96.1 F)
196035.6 C (96.1 F)
196135.0 C (95.0 F)
196237.2 C (99.0 F)
196337.2 C (99.0 F)
196437.2 C (99.0 F)
196533.3 C (91.9 F)
196636.1 C (97.0 F)
196735.6 C (96.1 F)
196834.4 C (93.9 F)
196936.1 C (97.0 F)
197039.4 C (102.9 F)
197136.7 C (98.1 F)
197236.1 C (97.0 F)
197334.4 C (93.9 F)
197441.1 C (106.0 F)
197537.8 C (100.0 F)
197637.2 C (99.0 F)
197735.6 C (96.1 F)
197837.2 C (99.0 F)
197934.4 C (93.9 F)
198042.2 C (108.0 F)
198136.7 C (98.1 F)
198236.7 C (98.1 F)
198340.6 C (105.1 F)
198438.9 C (102.0 F)
198535.0 C (95.0 F)
198634.4 C (93.9 F)
198738.3 C (100.9 F)
198840.0 C (104.0 F)
198937.2 C (99.0 F)
199037.8 C (100.0 F)
199137.8 C (100.0 F)
199233.9 C (93.0 F)
199335.0 C (95.0 F)
199435.0 C (95.0 F)
199536.7 C (98.1 F)
199634.4 C (93.9 F)
199737.2 C (99.0 F)
199835.0 C (95.0 F)
199937.2 C (99.0 F)
200037.2 C (99.0 F)
200134.4 C (93.9 F)
200236.7 C (98.1 F)
200338.9 C (102.0 F)
200433.3 C (91.9 F)
200535.6 C (96.1 F)
200636.7 C (98.1 F)
200734.4 C (93.9 F)
200834.4 C (93.9 F)
200936.1 C (97.0 F)
201036.1 C (97.0 F)
201136.7 C (98.1 F)
201239.4 C (102.9 F)
201337.2 C (99.0 F)
201433.3 C (91.9 F)
201535.6 C (96.1 F)
201636.7 C (98.1 F)
201734.4 C (93.9 F)
201837.2 C (99.0 F)
201935.0 C (95.0 F)
202033.3 C (91.9 F)
202136.7 C (98.1 F)
202236.7 C (98.1 F)
202336.7 C (98.1 F)
202435.0 C (95.0 F)
202534.4 C (93.9 F)
202637.2 C (99.0 F)

Coldest night (TNn)

Coldest night (TNn) at Conception by year The coldest night of the year at Conception, 1893 to 2026. The record is -34.4 C (-29.9 F) in 1912, marked on the chart; the median year is -24.4 C (-11.9 F). -35-30-25-20-151900192019401960198020002020Record: -34.4 C (-29.9 F) in 1912
The coldest night of the year at Conception, 1893 to 2026. The record is -34.4 C (-29.9 F) in 1912, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Conception by year
YearColdest night (TNn)
1893-25.0 C (-13.0 F)
1894-28.9 C (-20.0 F)
1895-27.8 C (-18.0 F)
1896-16.7 C (1.9 F)
1897-21.7 C (-7.1 F)
1898-22.2 C (-8.0 F)
1899-31.1 C (-24.0 F)
1900-22.2 C (-8.0 F)
1901-30.0 C (-22.0 F)
1902-26.1 C (-15.0 F)
1903-26.7 C (-16.1 F)
1904-27.8 C (-18.0 F)
1905-33.9 C (-29.0 F)
1906-19.4 C (-2.9 F)
1907-23.3 C (-9.9 F)
1908-19.4 C (-2.9 F)
1909-24.4 C (-11.9 F)
1910-26.1 C (-15.0 F)
1911-25.0 C (-13.0 F)
1912-34.4 C (-29.9 F)
1913-20.0 C (-4.0 F)
1914-25.0 C (-13.0 F)
1915-28.9 C (-20.0 F)
1916-31.1 C (-24.0 F)
1917-29.4 C (-20.9 F)
1918-30.6 C (-23.1 F)
1919-29.4 C (-20.9 F)
1920-20.6 C (-5.1 F)
1921-19.4 C (-2.9 F)
1922-20.6 C (-5.1 F)
1923-22.8 C (-9.0 F)
1924-31.7 C (-25.1 F)
1925-22.8 C (-9.0 F)
1926-23.9 C (-11.0 F)
1927-23.9 C (-11.0 F)
1928-24.4 C (-11.9 F)
1929-27.8 C (-18.0 F)
1930-30.0 C (-22.0 F)
1931-18.3 C (-0.9 F)
1932-27.2 C (-17.0 F)
1933-28.9 C (-20.0 F)
1934-25.6 C (-14.1 F)
1935-24.4 C (-11.9 F)
1936-31.7 C (-25.1 F)
1937-20.6 C (-5.1 F)
1938-21.1 C (-6.0 F)
1939-22.8 C (-9.0 F)
1940-30.0 C (-22.0 F)
1941-17.8 C (0.0 F)
1942-26.1 C (-15.0 F)
1943-29.4 C (-20.9 F)
1944-28.3 C (-18.9 F)
1945-25.6 C (-14.1 F)
1946-22.2 C (-8.0 F)
1947-28.3 C (-18.9 F)
1948-28.9 C (-20.0 F)
1949-25.0 C (-13.0 F)
1950-23.3 C (-9.9 F)
1951-26.1 C (-15.0 F)
1952-20.0 C (-4.0 F)
1953-21.7 C (-7.1 F)
1954-24.4 C (-11.9 F)
1955-26.7 C (-16.1 F)
1956-20.0 C (-4.0 F)
1957-22.8 C (-9.0 F)
1958-25.6 C (-14.1 F)
1959-26.7 C (-16.1 F)
1960-23.9 C (-11.0 F)
1961-23.3 C (-9.9 F)
1962-25.6 C (-14.1 F)
1963-27.2 C (-17.0 F)
1964-22.2 C (-8.0 F)
1965-25.6 C (-14.1 F)
1966-27.2 C (-17.0 F)
1967-20.6 C (-5.1 F)
1968-26.7 C (-16.1 F)
1969-22.8 C (-9.0 F)
1970-25.0 C (-13.0 F)
1971-24.4 C (-11.9 F)
1972-26.1 C (-15.0 F)
1973-24.4 C (-11.9 F)
1974-28.3 C (-18.9 F)
1975-19.4 C (-2.9 F)
1976-26.1 C (-15.0 F)
1977-28.3 C (-18.9 F)
1978-24.4 C (-11.9 F)
1979-26.1 C (-15.0 F)
1980-24.4 C (-11.9 F)
1981-28.3 C (-18.9 F)
1982-31.1 C (-24.0 F)
1983-30.6 C (-23.1 F)
1984-24.4 C (-11.9 F)
1985-26.1 C (-15.0 F)
1986-20.6 C (-5.1 F)
1987-17.8 C (0.0 F)
1988-24.4 C (-11.9 F)
1989-30.6 C (-23.1 F)
1990-23.3 C (-9.9 F)
1991-21.7 C (-7.1 F)
1992-19.4 C (-2.9 F)
1993-20.0 C (-4.0 F)
1994-22.2 C (-8.0 F)
1995-22.2 C (-8.0 F)
1996-29.4 C (-20.9 F)
1997-25.0 C (-13.0 F)
1998-21.7 C (-7.1 F)
1999-24.4 C (-11.9 F)
2000-22.8 C (-9.0 F)
2001-21.7 C (-7.1 F)
2002-17.8 C (0.0 F)
2003-23.9 C (-11.0 F)
2004-22.2 C (-8.0 F)
2005-20.6 C (-5.1 F)
2006-21.1 C (-6.0 F)
2007-23.3 C (-9.9 F)
2008-23.3 C (-9.9 F)
2009-24.4 C (-11.9 F)
2010-24.4 C (-11.9 F)
2011-21.1 C (-6.0 F)
2012-16.1 C (3.0 F)
2013-20.6 C (-5.1 F)
2014-25.0 C (-13.0 F)
2015-20.0 C (-4.0 F)
2016-24.4 C (-11.9 F)
2017-21.7 C (-7.1 F)
2018-26.7 C (-16.1 F)
2019-26.1 C (-15.0 F)
2020-21.7 C (-7.1 F)
2021-31.1 C (-24.0 F)
2022-26.7 C (-16.1 F)
2023-18.3 C (-0.9 F)
2024-30.6 C (-23.1 F)
2025-26.7 C (-16.1 F)
2026-23.9 C (-11.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Conception by year The wettest day of the year at Conception, 1893 to 2026. The record is 166.4 mm (6.6 in) in 1898, marked on the chart; the median year is 67.4 mm (2.7 in). 0501001502001900192019401960198020002020Record: 166.4 mm (6.6 in) in 1898
The wettest day of the year at Conception, 1893 to 2026. The record is 166.4 mm (6.6 in) in 1898, marked on the chart; the median year is 67.4 mm (2.7 in).
Wettest day (Rx1day) at Conception by year
YearWettest day (Rx1day)
189363.5 mm (2.5 in)
189455.9 mm (2.2 in)
189573.7 mm (2.9 in)
189688.4 mm (3.5 in)
1897104.6 mm (4.1 in)
1898166.4 mm (6.6 in)
1899101.9 mm (4.0 in)
190091.9 mm (3.6 in)
190136.8 mm (1.4 in)
190265.5 mm (2.6 in)
190378.7 mm (3.1 in)
190468.8 mm (2.7 in)
190557.4 mm (2.3 in)
190632.3 mm (1.3 in)
190743.2 mm (1.7 in)
190866.3 mm (2.6 in)
190973.9 mm (2.9 in)
191035.6 mm (1.4 in)
191171.9 mm (2.8 in)
191261.0 mm (2.4 in)
191391.9 mm (3.6 in)
1914101.1 mm (4.0 in)
1915130.8 mm (5.1 in)
191664.8 mm (2.6 in)
191765.0 mm (2.6 in)
191885.1 mm (3.4 in)
1919115.6 mm (4.6 in)
192053.1 mm (2.1 in)
192135.8 mm (1.4 in)
192285.9 mm (3.4 in)
192354.9 mm (2.2 in)
192469.9 mm (2.8 in)
192559.7 mm (2.4 in)
192698.8 mm (3.9 in)
192788.6 mm (3.5 in)
192887.6 mm (3.4 in)
1929109.0 mm (4.3 in)
193056.6 mm (2.2 in)
193176.7 mm (3.0 in)
193276.2 mm (3.0 in)
1933115.6 mm (4.6 in)
193452.1 mm (2.1 in)
193556.1 mm (2.2 in)
193651.1 mm (2.0 in)
193753.3 mm (2.1 in)
193857.9 mm (2.3 in)
193973.9 mm (2.9 in)
194053.6 mm (2.1 in)
194162.5 mm (2.5 in)
1942134.9 mm (5.3 in)
194382.0 mm (3.2 in)
194448.5 mm (1.9 in)
194562.5 mm (2.5 in)
194647.0 mm (1.9 in)
194779.2 mm (3.1 in)
194845.2 mm (1.8 in)
194985.6 mm (3.4 in)
195074.9 mm (2.9 in)
195155.6 mm (2.2 in)
195267.6 mm (2.7 in)
195331.8 mm (1.3 in)
195458.4 mm (2.3 in)
195551.8 mm (2.0 in)
195697.3 mm (3.8 in)
195754.9 mm (2.2 in)
1958108.7 mm (4.3 in)
195962.7 mm (2.5 in)
1960114.8 mm (4.5 in)
1961112.3 mm (4.4 in)
196269.3 mm (2.7 in)
196349.5 mm (1.9 in)
196467.3 mm (2.6 in)
196581.0 mm (3.2 in)
196681.8 mm (3.2 in)
196763.5 mm (2.5 in)
1968141.2 mm (5.6 in)
196956.9 mm (2.2 in)
1970104.1 mm (4.1 in)
197155.4 mm (2.2 in)
197266.5 mm (2.6 in)
1973114.6 mm (4.5 in)
197484.6 mm (3.3 in)
197576.2 mm (3.0 in)
197659.7 mm (2.4 in)
197761.0 mm (2.4 in)
197883.8 mm (3.3 in)
1979101.6 mm (4.0 in)
198067.3 mm (2.6 in)
198144.5 mm (1.8 in)
1982104.1 mm (4.1 in)
198338.1 mm (1.5 in)
198481.3 mm (3.2 in)
198559.7 mm (2.4 in)
198686.4 mm (3.4 in)
198759.4 mm (2.3 in)
198854.4 mm (2.1 in)
1989116.6 mm (4.6 in)
199047.0 mm (1.9 in)
199149.0 mm (1.9 in)
1992119.4 mm (4.7 in)
1993129.5 mm (5.1 in)
199471.1 mm (2.8 in)
199582.6 mm (3.3 in)
199668.6 mm (2.7 in)
199745.2 mm (1.8 in)
199896.5 mm (3.8 in)
199952.1 mm (2.1 in)
200063.5 mm (2.5 in)
200153.3 mm (2.1 in)
200253.8 mm (2.1 in)
200368.6 mm (2.7 in)
200477.5 mm (3.1 in)
200555.1 mm (2.2 in)
200652.3 mm (2.1 in)
2007108.0 mm (4.3 in)
200858.7 mm (2.3 in)
200955.1 mm (2.2 in)
201053.8 mm (2.1 in)
201166.0 mm (2.6 in)
201256.9 mm (2.2 in)
201361.0 mm (2.4 in)
201482.8 mm (3.3 in)
201594.0 mm (3.7 in)
201667.1 mm (2.6 in)
2017101.6 mm (4.0 in)
201860.2 mm (2.4 in)
201969.1 mm (2.7 in)
2020119.9 mm (4.7 in)
202167.3 mm (2.6 in)
202279.8 mm (3.1 in)
202366.0 mm (2.6 in)
202495.0 mm (3.7 in)
2025150.4 mm (5.9 in)
2026117.1 mm (4.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Conception by year The wettest five days of the year at Conception, 1893 to 2026. The record is 249.4 mm (9.8 in) in 1993, marked on the chart; the median year is 104.8 mm (4.1 in). 01002003001900192019401960198020002020Record: 249.4 mm (9.8 in) in 1993
The wettest five days of the year at Conception, 1893 to 2026. The record is 249.4 mm (9.8 in) in 1993, marked on the chart; the median year is 104.8 mm (4.1 in).
Wettest five days (Rx5day) at Conception by year
YearWettest five days (Rx5day)
1893101.6 mm (4.0 in)
189485.1 mm (3.4 in)
1895106.8 mm (4.2 in)
1896124.2 mm (4.9 in)
1897199.1 mm (7.8 in)
1898183.7 mm (7.2 in)
1899119.9 mm (4.7 in)
1900126.7 mm (5.0 in)
190147.0 mm (1.9 in)
1902121.6 mm (4.8 in)
1903112.7 mm (4.4 in)
190477.4 mm (3.0 in)
1905125.5 mm (4.9 in)
190655.7 mm (2.2 in)
190758.2 mm (2.3 in)
1908122.4 mm (4.8 in)
190990.9 mm (3.6 in)
191053.6 mm (2.1 in)
191181.0 mm (3.2 in)
191261.0 mm (2.4 in)
191399.3 mm (3.9 in)
1914117.6 mm (4.6 in)
1915225.9 mm (8.9 in)
191689.7 mm (3.5 in)
1917174.7 mm (6.9 in)
1918100.0 mm (3.9 in)
1919170.7 mm (6.7 in)
192073.7 mm (2.9 in)
192170.1 mm (2.8 in)
1922144.9 mm (5.7 in)
192391.0 mm (3.6 in)
1924128.6 mm (5.1 in)
1925101.7 mm (4.0 in)
1926199.9 mm (7.9 in)
1927104.8 mm (4.1 in)
1928139.6 mm (5.5 in)
1929178.3 mm (7.0 in)
193072.9 mm (2.9 in)
1931177.6 mm (7.0 in)
1932170.7 mm (6.7 in)
1933116.9 mm (4.6 in)
1934104.4 mm (4.1 in)
1935104.7 mm (4.1 in)
193684.1 mm (3.3 in)
1937119.4 mm (4.7 in)
193871.6 mm (2.8 in)
1939121.2 mm (4.8 in)
194082.1 mm (3.2 in)
194178.8 mm (3.1 in)
1942153.2 mm (6.0 in)
1943126.2 mm (5.0 in)
194483.0 mm (3.3 in)
1945104.9 mm (4.1 in)
194689.7 mm (3.5 in)
1947152.0 mm (6.0 in)
194870.3 mm (2.8 in)
194996.5 mm (3.8 in)
1950102.3 mm (4.0 in)
195191.0 mm (3.6 in)
1952111.5 mm (4.4 in)
195345.7 mm (1.8 in)
195495.0 mm (3.7 in)
195586.9 mm (3.4 in)
1956156.2 mm (6.1 in)
195794.1 mm (3.7 in)
1958199.4 mm (7.9 in)
1959109.5 mm (4.3 in)
1960122.2 mm (4.8 in)
1961119.9 mm (4.7 in)
1962114.3 mm (4.5 in)
196382.8 mm (3.3 in)
1964135.9 mm (5.4 in)
1965125.2 mm (4.9 in)
196681.8 mm (3.2 in)
1967106.0 mm (4.2 in)
1968184.9 mm (7.3 in)
196975.4 mm (3.0 in)
1970174.2 mm (6.9 in)
1971122.3 mm (4.8 in)
197289.5 mm (3.5 in)
1973136.2 mm (5.4 in)
1974104.9 mm (4.1 in)
1975121.6 mm (4.8 in)
197690.4 mm (3.6 in)
1977100.9 mm (4.0 in)
1978163.0 mm (6.4 in)
1979138.4 mm (5.4 in)
198082.0 mm (3.2 in)
198178.8 mm (3.1 in)
1982123.9 mm (4.9 in)
198354.8 mm (2.2 in)
198499.1 mm (3.9 in)
198585.9 mm (3.4 in)
1986116.6 mm (4.6 in)
198776.5 mm (3.0 in)
198873.6 mm (2.9 in)
1989226.8 mm (8.9 in)
199083.0 mm (3.3 in)
1991112.8 mm (4.4 in)
1992156.2 mm (6.1 in)
1993249.4 mm (9.8 in)
199477.7 mm (3.1 in)
1995111.0 mm (4.4 in)
1996104.1 mm (4.1 in)
199779.2 mm (3.1 in)
1998101.6 mm (4.0 in)
199964.3 mm (2.5 in)
200082.6 mm (3.3 in)
200196.8 mm (3.8 in)
200269.3 mm (2.7 in)
200383.9 mm (3.3 in)
2004110.7 mm (4.4 in)
200584.1 mm (3.3 in)
2006100.0 mm (3.9 in)
2007156.8 mm (6.2 in)
200890.1 mm (3.5 in)
200987.4 mm (3.4 in)
201079.5 mm (3.1 in)
2011109.9 mm (4.3 in)
201271.0 mm (2.8 in)
2013121.1 mm (4.8 in)
2014117.4 mm (4.6 in)
2015165.6 mm (6.5 in)
2016104.2 mm (4.1 in)
2017129.3 mm (5.1 in)
2018162.3 mm (6.4 in)
2019140.8 mm (5.5 in)
2020130.1 mm (5.1 in)
202186.3 mm (3.4 in)
202288.1 mm (3.5 in)
202389.6 mm (3.5 in)
2024130.8 mm (5.1 in)
2025169.7 mm (6.7 in)
2026154.2 mm (6.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Conception by year The longest dry spell of the year at Conception, 1893 to 2026. The record is 61 days in 1952, marked on the chart; the median year is 27 days. 0204060801900192019401960198020002020Record: 61 days in 1952
The longest dry spell of the year at Conception, 1893 to 2026. The record is 61 days in 1952, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Conception by year
YearLongest dry spell (CDD)
189342 days
189429 days
189534 days
189630 days
189724 days
189818 days
189919 days
190033 days
190130 days
190227 days
190325 days
190423 days
190534 days
190634 days
190725 days
190832 days
190932 days
191032 days
191123 days
191218 days
191330 days
191451 days
191524 days
191620 days
191750 days
191822 days
191933 days
192026 days
192130 days
192248 days
192318 days
192424 days
192536 days
192620 days
192722 days
192820 days
192919 days
193029 days
193128 days
193229 days
193325 days
193432 days
193526 days
193632 days
193734 days
193850 days
193935 days
194025 days
194118 days
194231 days
194327 days
194422 days
194529 days
194630 days
194728 days
194827 days
194928 days
195026 days
195127 days
195261 days
195347 days
195445 days
195520 days
195638 days
195720 days
195836 days
195935 days
196022 days
196122 days
196217 days
196332 days
196420 days
196519 days
196621 days
196729 days
196847 days
196924 days
197026 days
197130 days
197213 days
197322 days
197425 days
197530 days
197636 days
197719 days
197827 days
197919 days
198027 days
198131 days
198217 days
198341 days
198429 days
198522 days
198634 days
198728 days
198834 days
198936 days
199018 days
199129 days
199219 days
199323 days
199432 days
199522 days
199625 days
199714 days
199825 days
199923 days
200028 days
200132 days
200248 days
200319 days
200419 days
200521 days
200634 days
200729 days
200821 days
200924 days
201016 days
201123 days
201232 days
201325 days
201423 days
201523 days
201635 days
201735 days
201819 days
201916 days
202024 days
202131 days
202217 days
202323 days
202424 days
202522 days
202620 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

119 years with a frost

Across 119 years with a frost, the median last spring frost at Conception falls on 18 April and the median first autumn frost on 18 October, which leaves a median of 183 days between them.

In 1994 to 2025 the median growing season was 189 days. That is 7 days more than in 1894 to 1926.

Fitted over all years, the growing season changes by +0.9 days per decade at this station.

Frost dates and growing season at Conception
MeasureMedian, all yearsEarliest period (1894 to 1926)Recent period (1994 to 2025)Recent against earliestFitted trend
Last spring frost18 April19 April15 April4 days earlier-0.6 days per decade
First autumn frost18 October15 October24 October9 days later+0.3 days per decade
Growing days183 days182 days189 days7 days more+0.9 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

127 years, 1894 to 2025

A day with at least 69.3 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 164.2 mm (6.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Conception: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years69.3 mm (2.7 in)
5 years92.5 mm (3.6 in)
10 years108.6 mm (4.3 in)
25 years130.2 mm (5.1 in)
50 years146.9 mm (5.8 in)
100 years164.2 mm (6.5 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 127 years of values from 1894 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: 166.4 mm (6.6 in) in 1898; 150.4 mm (5.9 in) in 2025; 141.2 mm (5.6 in) in 1968.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Conception had a mean temperature of 11.6 C (52.8 F) and 918.8 mm (36.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Springfield Abraham Lincoln Ca (United States, 428 km away), Havana (United States, 392 km away) and Tuscola (United States, 546 km away).

Climate twins of Conception: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Springfield Abraham Lincoln CaUnited States428 km (266 mi)11.4 C (52.5 F)896.4 mm (35.3 in)0.61
HavanaUnited States392 km (244 mi)11.3 C (52.3 F)939.8 mm (37.0 in)0.63
TuscolaUnited States546 km (339 mi)11.6 C (52.9 F)999.3 mm (39.3 in)0.66

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 Conception standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Conception 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).