Built 2026-10-15 (15 October 2026)

Ft Bayard 4W Weather Records (USC00293265)

Record envelope, standing records and threshold days for Ft Bayard 4W (USC00293265), New Mexico, United States, with 130 years of record.

Key Facts for Ft Bayard 4W

  • Ft Bayard 4W (USC00293265) is a weather station in New Mexico, United States at 32.79 latitude and -108.23 longitude, 1,874 m (6,149 ft) above sea level.
  • The station reports from 1897 to 2026, 130 years of record.
  • 1,464 records set at Ft Bayard 4W still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Ft Bayard 4W set a daily record precipitation of 26.2 mm (1.0 in) on 30 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: New Mexico, United States, 32.79 latitude, -108.23 longitude.
  • Elevation: 1,874 m (6,149 ft).
  • Period of record: 1897 to 2026, 130 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

24 days at or beyond a record
Daily record high and record low at Ft Bayard 4W, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ft Bayard 4W. The lines show the 2026 daily maximum and minimum. 24 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 Ft Bayard 4W. The lines show the 2026 daily maximum and minimum. 24 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Ft Bayard 4W, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan25.6 C (78.1 F)-24.4 C (-11.9 F)17.8 C (64.0 F)-7.8 C (18.0 F)
Feb28.9 C (84.0 F)-21.1 C (-6.0 F)25.6 C (78.1 F)-3.3 C (26.1 F)
Mar32.8 C (91.0 F)-13.9 C (7.0 F)32.8 C (91.0 F)-1.1 C (30.0 F)
Apr35.0 C (95.0 F)-10.6 C (12.9 F)26.1 C (79.0 F)1.1 C (34.0 F)
May37.2 C (99.0 F)-5.0 C (23.0 F)31.7 C (89.1 F)4.4 C (39.9 F)
Jun41.1 C (106.0 F)-1.1 C (30.0 F)37.8 C (100.0 F)11.1 C (52.0 F)
Jul40.0 C (104.0 F)5.6 C (42.1 F)36.7 C (98.1 F)13.9 C (57.0 F)
Aug38.9 C (102.0 F)3.3 C (37.9 F)36.7 C (98.1 F)13.3 C (55.9 F)
Sep37.8 C (100.0 F)-1.7 C (28.9 F)33.3 C (91.9 F)8.3 C (46.9 F)
Oct32.2 C (90.0 F)-7.2 C (19.0 F)26.1 C (79.0 F)7.8 C (46.0 F)
Nov27.2 C (81.0 F)-18.3 C (-0.9 F)n/an/a
Dec22.8 C (73.0 F)-19.4 C (-2.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ft Bayard 4W by the year they were set 1,464 records at Ft Bayard 4W still stand. 1910 holds the most, with 41. 02040601897: 211898: 231899: 201900: 101901: 91902: 111903: 111904: 151905: 151906: 171907: 81908: 121909: 181910: 411911: 91912: 31913: 111914: 71915: 81916: 81917: 141918: 161919: 171920: 91921: 101922: 31923: 121924: 61925: 111926: 41927: 121928: 41929: 71930: 51931: 91932: 31933: 151934: 21935: 31936: 61937: 31938: 71939: 101940: 61941: 41942: 31943: 81944: 91945: 141946: 61947: 111948: 151949: 221950: 181951: 341952: 101953: 411954: 191955: 161956: 171957: 181958: 101959: 151960: 71961: 171962: 201963: 71964: 121965: 161966: 231967: 61968: 81969: 121970: 91971: 101972: 91973: 61974: 81975: 111976: 51977: 31978: 111979: 171980: 271981: 191982: 81983: 101984: 31985: 81986: 111987: 81988: 91989: 181990: 101991: 131992: 91993: 31994: 51995: 111996: 161997: 61998: 161999: 62000: 202001: 32002: 62003: 132004: 142005: 172006: 102007: 282008: 252009: 212010: 222011: 102024: 212025: 292026: 311897190919211933194519571969198119932005
1,464 records at Ft Bayard 4W still stand. 1910 holds the most, with 41.
Standing records at Ft Bayard 4W by the year they were set
Year setStanding records
189721
189823
189920
190010
19019
190211
190311
190415
190515
190617
19078
190812
190918
191041
19119
19123
191311
19147
19158
19168
191714
191816
191917
19209
192110
19223
192312
19246
192511
19264
192712
19284
19297
19305
19319
19323
193315
19342
19353
19366
19373
19387
193910
19406
19414
19423
19438
19449
194514
19466
194711
194815
194922
195018
195134
195210
195341
195419
195516
195617
195718
195810
195915
19607
196117
196220
19637
196412
196516
196623
19676
19688
196912
19709
197110
19729
19736
19748
197511
19765
19773
197811
197917
198027
198119
19828
198310
19843
19858
198611
19878
19889
198918
199010
199113
19929
19933
19945
199511
199616
19976
199816
19996
200020
20013
20026
200313
200414
200517
200610
200728
200825
200921
201022
201110
202421
202529
202631

All-Time Record Progression

5 new records
When Ft Bayard 4W set new all-time records 5 all-time records were set at Ft Bayard 4W between 29 January 1948 and 26 June 1994. Each dot is a new record. Record low maximum temperatureRecord high maximum temperature29 January 1948: Record low maximum temperature -7.2 C (19.0 F)4 January 1949: Record low maximum temperature -8.3 C (17.1 F)8 July 1951: Record high maximum temperature 40.0 C (104.0 F)30 June 1957: Record high maximum temperature 40.6 C (105.1 F)26 June 1994: Record high maximum temperature 41.1 C (106.0 F)19501960197019801990
5 all-time records were set at Ft Bayard 4W between 29 January 1948 and 26 June 1994. Each dot is a new record.
When Ft Bayard 4W set new all-time records
DateKindDetail
1948-01-29Record low maximum temperatureRecord low maximum temperature -7.2 C (19.0 F)
1949-01-04Record low maximum temperatureRecord low maximum temperature -8.3 C (17.1 F)
1951-07-08Record high maximum temperatureRecord high maximum temperature 40.0 C (104.0 F)
1957-06-30Record high maximum temperatureRecord high maximum temperature 40.6 C (105.1 F)
1994-06-26Record high maximum temperatureRecord high maximum temperature 41.1 C (106.0 F)

Wettest Day of Each Month

Aug: 90.2 mm (3.6 in)
Record daily precipitation for each month at Ft Bayard 4W The wettest day on record for each calendar month at Ft Bayard 4W. The most was 90.2 mm (3.6 in) on 31 August 1925. 0255075100 Jan: 47.5 mm (1.9 in), 9 January 1905 Jan Feb: 36.3 mm (1.4 in), 25 February 1948 Feb Mar: 50.8 mm (2.0 in), 10 March 1912 Mar Apr: 29.7 mm (1.2 in), 26 April 1919 Apr May: 45.0 mm (1.8 in), 28 May 2005 May Jun: 63.5 mm (2.5 in), 28 June 1966 Jun Jul: 78.7 mm (3.1 in), 18 July 2002 Jul Aug: 90.2 mm (3.6 in), 31 August 1925 Aug Sep: 63.5 mm (2.5 in), 14 September 1966 Sep Oct: 73.4 mm (2.9 in), 8 October 1904 Oct Nov: 44.5 mm (1.8 in), 25 November 1935 Nov Dec: 40.6 mm (1.6 in), 5 December 1994 Dec
The wettest day on record for each calendar month at Ft Bayard 4W. The most was 90.2 mm (3.6 in) on 31 August 1925.
Record daily precipitation for each month at Ft Bayard 4W
MonthRecord daily precipitation (mm)Date
Jan47.5 mm (1.9 in)9 January 1905
Feb36.3 mm (1.4 in)25 February 1948
Mar50.8 mm (2.0 in)10 March 1912
Apr29.7 mm (1.2 in)26 April 1919
May45.0 mm (1.8 in)28 May 2005
Jun63.5 mm (2.5 in)28 June 1966
Jul78.7 mm (3.1 in)18 July 2002
Aug90.2 mm (3.6 in)31 August 1925
Sep63.5 mm (2.5 in)14 September 1966
Oct73.4 mm (2.9 in)8 October 1904
Nov44.5 mm (1.8 in)25 November 1935
Dec40.6 mm (1.6 in)5 December 1994

Period of Record Coverage

1897 to 2026
Days with data per year at Ft Bayard 4W 118 years of record at Ft Bayard 4W, 1897 to 2026. 13 years have data for under 90 percent of days and are left out of rankings: 1897, 1898, 1920, 1921, 1922, 1952, 1960, 1965 and others. 1897: 242 of 365 days1898: 304 of 365 days1899: 365 of 365 days1900: 365 of 365 days1901: 364 of 365 days1902: 365 of 365 days1903: 365 of 365 days1904: 364 of 366 days1905: 365 of 365 days1906: 365 of 365 days1907: 363 of 365 days1908: 341 of 366 days1909: 360 of 365 days1910: 352 of 365 days1911: 358 of 365 days1912: 366 of 366 days1913: 364 of 365 days1914: 361 of 365 days1915: 354 of 365 days1916: 365 of 366 days1917: 364 of 365 days1918: 331 of 365 days1919: 362 of 365 days1920: 152 of 366 days1921: 223 of 365 days1922: 233 of 365 days1923: 365 of 365 days1924: 366 of 366 days1925: 365 of 365 days1926: 363 of 365 days1927: 364 of 365 days1928: 365 of 366 days1929: 364 of 365 days1930: 361 of 365 days1931: 364 of 365 days1932: 366 of 366 days1933: 365 of 365 days1934: 364 of 365 days1935: 364 of 365 days1936: 365 of 366 days1937: 362 of 365 days1938: 361 of 365 days1939: 362 of 365 days1940: 362 of 366 days1941: 363 of 365 days1942: 362 of 365 days1943: 364 of 365 days1944: 342 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 364 of 365 days1948: 359 of 366 days1949: 359 of 365 days1950: 355 of 365 days1951: 351 of 365 days1952: 323 of 366 days1953: 361 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 364 of 365 days1959: 365 of 365 days1960: 305 of 366 days1961: 364 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 303 of 365 days1966: 360 of 365 days1967: 362 of 365 days1968: 365 of 366 days1969: 342 of 365 days1970: 365 of 365 days1971: 363 of 365 days1972: 362 of 366 days1973: 363 of 365 days1974: 364 of 365 days1975: 364 of 365 days1976: 364 of 366 days1977: 362 of 365 days1978: 362 of 365 days1979: 362 of 365 days1980: 361 of 366 days1981: 363 of 365 days1982: 332 of 365 days1983: 362 of 365 days1984: 363 of 366 days1985: 363 of 365 days1986: 356 of 365 days1987: 364 of 365 days1988: 362 of 366 days1989: 364 of 365 days1990: 365 of 365 days1991: 361 of 365 days1992: 330 of 366 days1993: 362 of 365 days1994: 362 of 365 days1995: 365 of 365 days1996: 357 of 366 days1997: 363 of 365 days1998: 363 of 365 days1999: 363 of 365 days2000: 361 of 366 days2001: 363 of 365 days2002: 361 of 365 days2003: 362 of 365 days2004: 327 of 366 days2005: 353 of 365 days2006: 343 of 365 days2007: 358 of 365 days2008: 364 of 366 days2009: 356 of 365 days2010: 304 of 365 days2011: 93 of 365 days2024: 300 of 366 days2025: 360 of 365 days2026: 273 of 365 days190519201935195019651980199520102025
118 years of record at Ft Bayard 4W, 1897 to 2026. 13 years have data for under 90 percent of days and are left out of rankings: 1897, 1898, 1920, 1921, 1922, 1952, 1960, 1965 and others.
Days with data per year at Ft Bayard 4W
YearDays with dataShare of yearComplete
189724266%No
189830483%No
1899365100%Yes
1900365100%Yes
1901364100%Yes
1902365100%Yes
1903365100%Yes
190436499%Yes
1905365100%Yes
1906365100%Yes
190736399%Yes
190834193%Yes
190936099%Yes
191035296%Yes
191135898%Yes
1912366100%Yes
1913364100%Yes
191436199%Yes
191535497%Yes
1916365100%Yes
1917364100%Yes
191833191%Yes
191936299%Yes
192015242%No
192122361%No
192223364%No
1923365100%Yes
1924366100%Yes
1925365100%Yes
192636399%Yes
1927364100%Yes
1928365100%Yes
1929364100%Yes
193036199%Yes
1931364100%Yes
1932366100%Yes
1933365100%Yes
1934364100%Yes
1935364100%Yes
1936365100%Yes
193736299%Yes
193836199%Yes
193936299%Yes
194036299%Yes
194136399%Yes
194236299%Yes
1943364100%Yes
194434293%Yes
1945365100%Yes
1946365100%Yes
1947364100%Yes
194835998%Yes
194935998%Yes
195035597%Yes
195135196%Yes
195232388%No
195336199%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958364100%Yes
1959365100%Yes
196030583%No
1961364100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
196530383%No
196636099%Yes
196736299%Yes
1968365100%Yes
196934294%Yes
1970365100%Yes
197136399%Yes
197236299%Yes
197336399%Yes
1974364100%Yes
1975364100%Yes
197636499%Yes
197736299%Yes
197836299%Yes
197936299%Yes
198036199%Yes
198136399%Yes
198233291%Yes
198336299%Yes
198436399%Yes
198536399%Yes
198635698%Yes
1987364100%Yes
198836299%Yes
1989364100%Yes
1990365100%Yes
199136199%Yes
199233090%Yes
199336299%Yes
199436299%Yes
1995365100%Yes
199635798%Yes
199736399%Yes
199836399%Yes
199936399%Yes
200036199%Yes
200136399%Yes
200236199%Yes
200336299%Yes
200432789%No
200535397%Yes
200634394%Yes
200735898%Yes
200836499%Yes
200935698%Yes
201030483%No
20119325%No
202430082%No
202536099%Yes
202627375%No

Latest Records

20
Latest records at Ft Bayard 4W
DateStationRecordValueBeat old record byOld record stoodSignificance
30 September 2026Ft Bayard 4W, USdaily rain (Provisional)26.2 mm (1.0 in)9.4 mm (0.37 in)43 years32 of 100 (Routine)
16 September 2026Ft Bayard 4W, USdaily rain (Provisional)21.3 mm (0.8 in)6.6 mm (0.26 in)99 years20 of 100 (Routine)
31 August 2026Ft Bayard 4W, USdaily high min (Tie, Provisional)18.9 C (66.0 F)tie124 years10 of 100 (Routine)
30 August 2026Ft Bayard 4W, USdaily high min (Provisional)19.4 C (66.9 F)1.6 C (2.9 F)19 years22 of 100 (Routine)
29 August 2026Ft Bayard 4W, USdaily high min (Provisional)19.4 C (66.9 F)2.2 C (4.0 F)126 years50 of 100 (Notable)
29 August 2026Ft Bayard 4W, USdaily high max (Tie, Provisional)35.0 C (95.0 F)tie76 years8 of 100 (Routine)
28 August 2026Ft Bayard 4W, USdaily high max (Tie, Provisional)34.4 C (93.9 F)tie126 years10 of 100 (Routine)
27 August 2026Ft Bayard 4W, USdaily high max (Tie, Provisional)35.0 C (95.0 F)tie72 years7 of 100 (Routine)
26 August 2026Ft Bayard 4W, USdaily high max (Provisional)36.1 C (97.0 F)2.2 C (4.0 F)89 years44 of 100 (Notable)
26 August 2026Ft Bayard 4W, USdaily high min (Provisional)20.0 C (68.0 F)1.7 C (3.1 F)87 years43 of 100 (Notable)
25 August 2026Ft Bayard 4W, USdaily high max (Tie, Provisional)36.7 C (98.1 F)tie72 years7 of 100 (Routine)
24 August 2026Ft Bayard 4W, USdaily high max (Provisional)35.6 C (96.1 F)2.3 C (4.1 F)32 years27 of 100 (Routine)
23 August 2026Ft Bayard 4W, USdaily high max (Provisional)35.0 C (95.0 F)1.7 C (3.1 F)108 years46 of 100 (Notable)
22 August 2026Ft Bayard 4W, USdaily high max (Provisional)34.4 C (93.9 F)0.5 C (0.9 F)19 years16 of 100 (Routine)
21 August 2026Ft Bayard 4W, USdaily high min (Tie, Provisional)19.4 C (66.9 F)tie16 years3 of 100 (Routine)
31 July 2026Ft Bayard 4W, USdaily high max (Tie)36.1 C (97.0 F)tie53 years6 of 100 (Routine)
31 July 2026Ft Bayard 4W, USdaily high min (Tie)20.6 C (69.1 F)tie21 years4 of 100 (Routine)
30 July 2026Ft Bayard 4W, USdaily high max (Tie)36.1 C (97.0 F)tie75 years8 of 100 (Routine)
23 July 2026Ft Bayard 4W, USdaily high min (Tie)19.4 C (66.9 F)tie20 years4 of 100 (Routine)
4 July 2026Ft Bayard 4W, USdaily high min (Tie)19.4 C (66.9 F)tie44 years5 of 100 (Routine)

Climate Trend

88 complete years, 1899 to 2025
Annual mean temperature at Ft Bayard 4W as warming stripes, 1899 to 2025 One stripe for each of 88 complete years at Ft Bayard 4W, 1899 to 2025. Blue stripes are years cooler than the station's own mean of 13.1 C (55.6 F); red stripes are warmer. The coolest year was 1964, at 11.3 C (52.4 F), and the warmest was 2009, at 15.5 C (60.0 F). The strongest colour marks a difference of 2.5 C (4.5 F). 1899: 12.7 C, -0.4 C from the station mean1900: 13.6 C, +0.4 C from the station mean1901: 13.2 C, 0.0 C from the station mean1902: 13.1 C, -0.1 C from the station mean1903: 12.8 C, -0.3 C from the station mean1904: 13.1 C, 0.0 C from the station mean1905: 12.2 C, -0.9 C from the station mean1906: 13.1 C, -0.1 C from the station mean1907: 13.5 C, +0.4 C from the station mean1909: 13.0 C, -0.1 C from the station mean1910: 14.7 C, +1.6 C from the station mean1911: 13.1 C, -0.1 C from the station mean1912: 11.8 C, -1.3 C from the station mean1913: 11.8 C, -1.3 C from the station mean1914: 12.5 C, -0.6 C from the station mean1915: 11.8 C, -1.3 C from the station mean1916: 12.5 C, -0.6 C from the station mean1917: 13.1 C, -0.1 C from the station mean1924: 13.3 C, +0.2 C from the station mean1925: 13.3 C, +0.2 C from the station mean1926: 12.6 C, -0.5 C from the station mean1927: 13.4 C, +0.3 C from the station mean1928: 12.7 C, -0.4 C from the station mean1929: 12.6 C, -0.5 C from the station mean1930: 12.5 C, -0.6 C from the station mean1931: 12.9 C, -0.2 C from the station mean1932: 12.7 C, -0.4 C from the station mean1933: 13.3 C, +0.2 C from the station mean1934: 14.5 C, +1.4 C from the station mean1935: 13.4 C, +0.2 C from the station mean1936: 13.6 C, +0.5 C from the station mean1937: 13.3 C, +0.2 C from the station mean1938: 13.3 C, +0.2 C from the station mean1939: 13.1 C, 0.0 C from the station mean1940: 12.9 C, -0.2 C from the station mean1941: 12.1 C, -1.0 C from the station mean1943: 13.1 C, 0.0 C from the station mean1945: 12.3 C, -0.8 C from the station mean1946: 12.7 C, -0.4 C from the station mean1947: 12.4 C, -0.7 C from the station mean1949: 11.5 C, -1.6 C from the station mean1950: 13.3 C, +0.2 C from the station mean1953: 12.7 C, -0.4 C from the station mean1954: 13.3 C, +0.2 C from the station mean1955: 12.4 C, -0.7 C from the station mean1956: 12.8 C, -0.3 C from the station mean1957: 12.4 C, -0.7 C from the station mean1958: 12.3 C, -0.8 C from the station mean1959: 12.7 C, -0.5 C from the station mean1962: 12.6 C, -0.6 C from the station mean1963: 12.7 C, -0.5 C from the station mean1964: 11.3 C, -1.8 C from the station mean1967: 12.6 C, -0.6 C from the station mean1968: 12.1 C, -1.0 C from the station mean1969: 12.7 C, -0.4 C from the station mean1970: 12.6 C, -0.5 C from the station mean1972: 12.6 C, -0.5 C from the station mean1974: 12.9 C, -0.2 C from the station mean1975: 12.1 C, -1.0 C from the station mean1978: 13.3 C, +0.2 C from the station mean1979: 12.9 C, -0.2 C from the station mean1981: 13.2 C, 0.0 C from the station mean1983: 12.9 C, -0.3 C from the station mean1984: 12.9 C, -0.2 C from the station mean1985: 13.0 C, -0.1 C from the station mean1986: 13.4 C, +0.3 C from the station mean1987: 12.8 C, -0.3 C from the station mean1988: 13.2 C, +0.1 C from the station mean1989: 13.7 C, +0.6 C from the station mean1990: 12.9 C, -0.2 C from the station mean1991: 12.3 C, -0.8 C from the station mean1993: 13.4 C, +0.3 C from the station mean1994: 14.1 C, +1.0 C from the station mean1995: 13.7 C, +0.6 C from the station mean1996: 13.6 C, +0.5 C from the station mean1997: 13.6 C, +0.4 C from the station mean1998: 13.5 C, +0.3 C from the station mean1999: 13.7 C, +0.6 C from the station mean2000: 14.3 C, +1.1 C from the station mean2001: 13.6 C, +0.5 C from the station mean2002: 13.8 C, +0.7 C from the station mean2003: 14.4 C, +1.3 C from the station mean2005: 14.4 C, +1.2 C from the station mean2006: 14.7 C, +1.6 C from the station mean2007: 15.2 C, +2.1 C from the station mean2008: 15.3 C, +2.2 C from the station mean2009: 15.5 C, +2.4 C from the station mean2025: 15.5 C, +2.4 C from the station mean1899191019201930194019501960197019801990200020102020
One stripe for each of 88 complete years at Ft Bayard 4W, 1899 to 2025. Blue stripes are years cooler than the station's own mean of 13.1 C (55.6 F); red stripes are warmer. The coolest year was 1964, at 11.3 C (52.4 F), and the warmest was 2009, at 15.5 C (60.0 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Ft Bayard 4W as warming stripes, 1899 to 2025
YearAnnual mean temperatureDifference from the station mean
189912.7 C-0.43 C
190013.6 C+0.44 C
190113.2 C+0.04 C
190213.1 C-0.05 C
190312.8 C-0.28 C
190413.1 C0.00 C
190512.2 C-0.90 C
190613.1 C-0.06 C
190713.5 C+0.40 C
190913.0 C-0.13 C
191014.7 C+1.56 C
191113.1 C-0.05 C
191211.8 C-1.27 C
191311.8 C-1.32 C
191412.5 C-0.62 C
191511.8 C-1.28 C
191612.5 C-0.58 C
191713.1 C-0.06 C
192413.3 C+0.19 C
192513.3 C+0.21 C
192612.6 C-0.49 C
192713.4 C+0.31 C
192812.7 C-0.43 C
192912.6 C-0.51 C
193012.5 C-0.60 C
193112.9 C-0.23 C
193212.7 C-0.42 C
193313.3 C+0.17 C
193414.5 C+1.43 C
193513.4 C+0.25 C
193613.6 C+0.51 C
193713.3 C+0.17 C
193813.3 C+0.18 C
193913.1 C+0.03 C
194012.9 C-0.17 C
194112.1 C-0.97 C
194313.1 C-0.02 C
194512.3 C-0.84 C
194612.7 C-0.41 C
194712.4 C-0.72 C
194911.5 C-1.58 C
195013.3 C+0.20 C
195312.7 C-0.38 C
195413.3 C+0.20 C
195512.4 C-0.71 C
195612.8 C-0.32 C
195712.4 C-0.74 C
195812.3 C-0.81 C
195912.7 C-0.46 C
196212.6 C-0.56 C
196312.7 C-0.45 C
196411.3 C-1.79 C
196712.6 C-0.55 C
196812.1 C-1.04 C
196912.7 C-0.39 C
197012.6 C-0.51 C
197212.6 C-0.48 C
197412.9 C-0.20 C
197512.1 C-1.01 C
197813.3 C+0.22 C
197912.9 C-0.20 C
198113.2 C+0.05 C
198312.9 C-0.26 C
198412.9 C-0.21 C
198513.0 C-0.13 C
198613.4 C+0.27 C
198712.8 C-0.33 C
198813.2 C+0.13 C
198913.7 C+0.59 C
199012.9 C-0.17 C
199112.3 C-0.79 C
199313.4 C+0.30 C
199414.1 C+1.01 C
199513.7 C+0.63 C
199613.6 C+0.50 C
199713.6 C+0.44 C
199813.5 C+0.34 C
199913.7 C+0.62 C
200014.3 C+1.15 C
200113.6 C+0.47 C
200213.8 C+0.73 C
200314.4 C+1.30 C
200514.4 C+1.25 C
200614.7 C+1.57 C
200715.2 C+2.09 C
200815.3 C+2.23 C
200915.5 C+2.43 C
202515.5 C+2.39 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1899 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 88 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ft Bayard 4W
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.3) per decade1899 to 202588Rise
Mean daily maximum0.10 C (0.05 to 0.15) per decade0.2 F (0.1 to 0.3) per decade1899 to 202588Rise
Mean daily minimum0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.3) per decade1899 to 202588Rise

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

1897 to 2026
Yearly extremes at Ft Bayard 4W: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)199436.1 C (97.0 F)118
Coldest night (TNn)-24.4 C (-11.9 F)1913-12.8 C (9.0 F)118
Wettest day (Rx1day)90.2 mm (3.6 in)192535.7 mm (1.4 in)118
Wettest five days (Rx5day)152.6 mm (6.0 in)190461.9 mm (2.4 in)118
Longest dry spell (CDD)150 days197252 days118

Hottest day (TXx)

Hottest day (TXx) at Ft Bayard 4W by year The hottest day of the year at Ft Bayard 4W, 1897 to 2026. The record is 41.1 C (106.0 F) in 1994, marked on the chart; the median year is 36.1 C (97.0 F). 25303540451900192019401960198020002020Record: 41.1 C (106.0 F) in 1994
The hottest day of the year at Ft Bayard 4W, 1897 to 2026. The record is 41.1 C (106.0 F) in 1994, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Ft Bayard 4W by year
YearHottest day (TXx)
189735.6 C (96.1 F)
189835.6 C (96.1 F)
189937.8 C (100.0 F)
190037.8 C (100.0 F)
190135.0 C (95.0 F)
190236.7 C (98.1 F)
190339.4 C (102.9 F)
190436.1 C (97.0 F)
190537.2 C (99.0 F)
190637.8 C (100.0 F)
190736.7 C (98.1 F)
190835.6 C (96.1 F)
190937.2 C (99.0 F)
191035.0 C (95.0 F)
191136.7 C (98.1 F)
191235.0 C (95.0 F)
191336.7 C (98.1 F)
191434.4 C (93.9 F)
191535.0 C (95.0 F)
191635.6 C (96.1 F)
191737.8 C (100.0 F)
191836.7 C (98.1 F)
191932.8 C (91.0 F)
192028.3 C (82.9 F)
192135.6 C (96.1 F)
192233.9 C (93.0 F)
192335.6 C (96.1 F)
192438.9 C (102.0 F)
192533.9 C (93.0 F)
192632.2 C (90.0 F)
192734.4 C (93.9 F)
192834.4 C (93.9 F)
192936.7 C (98.1 F)
193036.7 C (98.1 F)
193133.3 C (91.9 F)
193235.0 C (95.0 F)
193335.6 C (96.1 F)
193436.1 C (97.0 F)
193538.3 C (100.9 F)
193636.7 C (98.1 F)
193735.6 C (96.1 F)
193834.4 C (93.9 F)
193936.7 C (98.1 F)
194035.6 C (96.1 F)
194132.2 C (90.0 F)
194235.0 C (95.0 F)
194335.0 C (95.0 F)
194435.6 C (96.1 F)
194534.4 C (93.9 F)
194635.6 C (96.1 F)
194736.7 C (98.1 F)
194837.2 C (99.0 F)
194933.9 C (93.0 F)
195035.6 C (96.1 F)
195140.0 C (104.0 F)
195236.1 C (97.0 F)
195340.0 C (104.0 F)
195437.2 C (99.0 F)
195536.7 C (98.1 F)
195635.0 C (95.0 F)
195740.6 C (105.1 F)
195838.3 C (100.9 F)
195934.4 C (93.9 F)
196036.7 C (98.1 F)
196135.0 C (95.0 F)
196233.9 C (93.0 F)
196336.7 C (98.1 F)
196435.6 C (96.1 F)
196534.4 C (93.9 F)
196634.4 C (93.9 F)
196733.9 C (93.0 F)
196835.6 C (96.1 F)
196936.1 C (97.0 F)
197035.6 C (96.1 F)
197135.0 C (95.0 F)
197237.2 C (99.0 F)
197337.2 C (99.0 F)
197436.7 C (98.1 F)
197533.9 C (93.0 F)
197637.8 C (100.0 F)
197739.4 C (102.9 F)
197840.0 C (104.0 F)
197936.7 C (98.1 F)
198037.8 C (100.0 F)
198137.2 C (99.0 F)
198237.8 C (100.0 F)
198336.7 C (98.1 F)
198433.9 C (93.0 F)
198536.7 C (98.1 F)
198635.0 C (95.0 F)
198736.1 C (97.0 F)
198835.0 C (95.0 F)
198937.8 C (100.0 F)
199040.0 C (104.0 F)
199136.1 C (97.0 F)
199237.2 C (99.0 F)
199336.7 C (98.1 F)
199441.1 C (106.0 F)
199537.8 C (100.0 F)
199637.8 C (100.0 F)
199737.8 C (100.0 F)
199838.3 C (100.9 F)
199935.6 C (96.1 F)
200035.6 C (96.1 F)
200134.4 C (93.9 F)
200237.8 C (100.0 F)
200337.8 C (100.0 F)
200434.4 C (93.9 F)
200540.0 C (104.0 F)
200635.6 C (96.1 F)
200736.1 C (97.0 F)
200837.2 C (99.0 F)
200935.6 C (96.1 F)
201034.4 C (93.9 F)
201128.3 C (82.9 F)
202437.2 C (99.0 F)
202537.2 C (99.0 F)
202637.8 C (100.0 F)

Coldest night (TNn)

Coldest night (TNn) at Ft Bayard 4W by year The coldest night of the year at Ft Bayard 4W, 1897 to 2026. The record is -24.4 C (-11.9 F) in 1913, marked on the chart; the median year is -12.8 C (9.0 F). -25-20-15-10-501900192019401960198020002020Record: -24.4 C (-11.9 F) in 1913
The coldest night of the year at Ft Bayard 4W, 1897 to 2026. The record is -24.4 C (-11.9 F) in 1913, marked on the chart; the median year is -12.8 C (9.0 F).
Coldest night (TNn) at Ft Bayard 4W by year
YearColdest night (TNn)
1897-12.8 C (9.0 F)
1898-18.3 C (-0.9 F)
1899-16.1 C (3.0 F)
1900-11.7 C (10.9 F)
1901-10.6 C (12.9 F)
1902-9.4 C (15.1 F)
1903-14.4 C (6.1 F)
1904-13.3 C (8.1 F)
1905-15.0 C (5.0 F)
1906-18.3 C (-0.9 F)
1907-11.7 C (10.9 F)
1908-12.2 C (10.0 F)
1909-11.1 C (12.0 F)
1910-15.6 C (3.9 F)
1911-15.6 C (3.9 F)
1912-11.7 C (10.9 F)
1913-24.4 C (-11.9 F)
1914-12.2 C (10.0 F)
1915-14.4 C (6.1 F)
1916-12.8 C (9.0 F)
1917-12.2 C (10.0 F)
1918-15.6 C (3.9 F)
1919-17.8 C (0.0 F)
1920-15.0 C (5.0 F)
1921-10.0 C (14.0 F)
1922-4.4 C (24.1 F)
1923-15.0 C (5.0 F)
1924-14.4 C (6.1 F)
1925-11.7 C (10.9 F)
1926-12.8 C (9.0 F)
1927-12.8 C (9.0 F)
1928-12.2 C (10.0 F)
1929-11.7 C (10.9 F)
1930-13.3 C (8.1 F)
1931-10.0 C (14.0 F)
1932-12.8 C (9.0 F)
1933-21.1 C (-6.0 F)
1934-12.2 C (10.0 F)
1935-15.0 C (5.0 F)
1936-10.6 C (12.9 F)
1937-13.9 C (7.0 F)
1938-12.8 C (9.0 F)
1939-13.9 C (7.0 F)
1940-14.4 C (6.1 F)
1941-12.2 C (10.0 F)
1942-9.4 C (15.1 F)
1943-11.7 C (10.9 F)
1944-13.9 C (7.0 F)
1945-12.2 C (10.0 F)
1946-13.3 C (8.1 F)
1947-19.4 C (-2.9 F)
1948-15.0 C (5.0 F)
1949-19.4 C (-2.9 F)
1950-13.9 C (7.0 F)
1951-14.4 C (6.1 F)
1952-12.8 C (9.0 F)
1953-19.4 C (-2.9 F)
1954-14.4 C (6.1 F)
1955-15.6 C (3.9 F)
1956-16.7 C (1.9 F)
1957-13.3 C (8.1 F)
1958-15.6 C (3.9 F)
1959-12.8 C (9.0 F)
1960-21.1 C (-6.0 F)
1961-11.7 C (10.9 F)
1962-12.2 C (10.0 F)
1963-19.4 C (-2.9 F)
1964-17.2 C (1.0 F)
1965-15.6 C (3.9 F)
1966-15.0 C (5.0 F)
1967-15.6 C (3.9 F)
1968-18.3 C (-0.9 F)
1969-15.0 C (5.0 F)
1970-12.8 C (9.0 F)
1971-20.0 C (-4.0 F)
1972-13.3 C (8.1 F)
1973-11.7 C (10.9 F)
1974-12.2 C (10.0 F)
1975-14.4 C (6.1 F)
1976-12.2 C (10.0 F)
1977-10.0 C (14.0 F)
1978-18.3 C (-0.9 F)
1979-17.8 C (0.0 F)
1980-12.2 C (10.0 F)
1981-14.4 C (6.1 F)
1982-11.7 C (10.9 F)
1983-9.4 C (15.1 F)
1984-11.1 C (12.0 F)
1985-12.2 C (10.0 F)
1986-15.0 C (5.0 F)
1987-14.4 C (6.1 F)
1988-12.8 C (9.0 F)
1989-13.3 C (8.1 F)
1990-11.1 C (12.0 F)
1991-11.7 C (10.9 F)
1992-12.8 C (9.0 F)
1993-11.1 C (12.0 F)
1994-10.6 C (12.9 F)
1995-10.0 C (14.0 F)
1996-15.0 C (5.0 F)
1997-11.7 C (10.9 F)
1998-10.0 C (14.0 F)
1999-9.4 C (15.1 F)
2000-10.0 C (14.0 F)
2001-17.2 C (1.0 F)
2002-9.4 C (15.1 F)
2003-12.8 C (9.0 F)
2004-10.6 C (12.9 F)
2005-10.6 C (12.9 F)
2006-10.0 C (14.0 F)
2007-10.0 C (14.0 F)
2008-7.2 C (19.0 F)
2009-9.4 C (15.1 F)
2010-13.3 C (8.1 F)
2011-18.9 C (-2.0 F)
2024-5.0 C (23.0 F)
2025-13.3 C (8.1 F)
2026-7.8 C (18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ft Bayard 4W by year The wettest day of the year at Ft Bayard 4W, 1897 to 2026. The record is 90.2 mm (3.6 in) in 1925, marked on the chart; the median year is 35.7 mm (1.4 in). 02550751001900192019401960198020002020Record: 90.2 mm (3.6 in) in 1925
The wettest day of the year at Ft Bayard 4W, 1897 to 2026. The record is 90.2 mm (3.6 in) in 1925, marked on the chart; the median year is 35.7 mm (1.4 in).
Wettest day (Rx1day) at Ft Bayard 4W by year
YearWettest day (Rx1day)
189733.0 mm (1.3 in)
189838.1 mm (1.5 in)
189927.9 mm (1.1 in)
190053.3 mm (2.1 in)
190119.1 mm (0.8 in)
190270.4 mm (2.8 in)
190327.7 mm (1.1 in)
190473.4 mm (2.9 in)
190547.5 mm (1.9 in)
190633.0 mm (1.3 in)
190726.7 mm (1.1 in)
190824.1 mm (0.9 in)
190924.1 mm (0.9 in)
191027.9 mm (1.1 in)
191150.5 mm (2.0 in)
191250.8 mm (2.0 in)
191339.6 mm (1.6 in)
191446.2 mm (1.8 in)
191538.1 mm (1.5 in)
191652.1 mm (2.1 in)
191720.3 mm (0.8 in)
191826.7 mm (1.1 in)
191933.0 mm (1.3 in)
192022.9 mm (0.9 in)
192143.2 mm (1.7 in)
192230.5 mm (1.2 in)
192342.9 mm (1.7 in)
192418.0 mm (0.7 in)
192590.2 mm (3.6 in)
192633.5 mm (1.3 in)
192742.7 mm (1.7 in)
192852.1 mm (2.1 in)
192935.8 mm (1.4 in)
193038.6 mm (1.5 in)
193144.7 mm (1.8 in)
193232.0 mm (1.3 in)
193343.2 mm (1.7 in)
193447.0 mm (1.9 in)
193544.5 mm (1.8 in)
193627.4 mm (1.1 in)
193728.2 mm (1.1 in)
193831.8 mm (1.3 in)
193934.5 mm (1.4 in)
194035.6 mm (1.4 in)
194130.5 mm (1.2 in)
194229.2 mm (1.1 in)
194345.5 mm (1.8 in)
194444.5 mm (1.8 in)
194546.5 mm (1.8 in)
194617.8 mm (0.7 in)
194726.2 mm (1.0 in)
194836.3 mm (1.4 in)
194942.2 mm (1.7 in)
195035.6 mm (1.4 in)
195122.6 mm (0.9 in)
195233.0 mm (1.3 in)
195328.2 mm (1.1 in)
195446.2 mm (1.8 in)
195521.6 mm (0.9 in)
195616.8 mm (0.7 in)
195735.6 mm (1.4 in)
195835.3 mm (1.4 in)
195922.1 mm (0.9 in)
196049.5 mm (1.9 in)
196129.2 mm (1.1 in)
196240.1 mm (1.6 in)
196323.4 mm (0.9 in)
196447.8 mm (1.9 in)
196533.0 mm (1.3 in)
196663.5 mm (2.5 in)
196730.5 mm (1.2 in)
196861.2 mm (2.4 in)
196925.7 mm (1.0 in)
197019.6 mm (0.8 in)
197159.7 mm (2.4 in)
197261.7 mm (2.4 in)
197340.6 mm (1.6 in)
197438.6 mm (1.5 in)
197532.5 mm (1.3 in)
197628.7 mm (1.1 in)
197739.6 mm (1.6 in)
197830.7 mm (1.2 in)
197938.1 mm (1.5 in)
198027.9 mm (1.1 in)
198152.3 mm (2.1 in)
198221.1 mm (0.8 in)
198359.4 mm (2.3 in)
198429.0 mm (1.1 in)
198543.4 mm (1.7 in)
198653.3 mm (2.1 in)
198746.5 mm (1.8 in)
198836.3 mm (1.4 in)
198930.0 mm (1.2 in)
199021.1 mm (0.8 in)
199144.2 mm (1.7 in)
199225.1 mm (1.0 in)
199334.3 mm (1.4 in)
199443.2 mm (1.7 in)
199544.2 mm (1.7 in)
199634.3 mm (1.4 in)
199724.1 mm (0.9 in)
199843.2 mm (1.7 in)
199930.2 mm (1.2 in)
200037.3 mm (1.5 in)
200129.2 mm (1.1 in)
200278.7 mm (3.1 in)
200336.1 mm (1.4 in)
200422.4 mm (0.9 in)
200545.0 mm (1.8 in)
200656.9 mm (2.2 in)
200737.8 mm (1.5 in)
200863.5 mm (2.5 in)
200930.5 mm (1.2 in)
201049.5 mm (1.9 in)
20112.0 mm (0.08 in)
202453.3 mm (2.1 in)
202543.2 mm (1.7 in)
202626.2 mm (1.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ft Bayard 4W by year The wettest five days of the year at Ft Bayard 4W, 1897 to 2026. The record is 152.6 mm (6.0 in) in 1904, marked on the chart; the median year is 61.9 mm (2.4 in). 0501001502001900192019401960198020002020Record: 152.6 mm (6.0 in) in 1904
The wettest five days of the year at Ft Bayard 4W, 1897 to 2026. The record is 152.6 mm (6.0 in) in 1904, marked on the chart; the median year is 61.9 mm (2.4 in).
Wettest five days (Rx5day) at Ft Bayard 4W by year
YearWettest five days (Rx5day)
189765.0 mm (2.6 in)
189877.5 mm (3.1 in)
189950.7 mm (2.0 in)
190090.2 mm (3.6 in)
190128.4 mm (1.1 in)
1902106.7 mm (4.2 in)
190382.5 mm (3.2 in)
1904152.6 mm (6.0 in)
190569.9 mm (2.8 in)
190677.9 mm (3.1 in)
190747.8 mm (1.9 in)
190839.8 mm (1.6 in)
190929.7 mm (1.2 in)
191040.6 mm (1.6 in)
191168.3 mm (2.7 in)
191264.7 mm (2.5 in)
191363.8 mm (2.5 in)
191485.3 mm (3.4 in)
191559.2 mm (2.3 in)
191693.3 mm (3.7 in)
191738.1 mm (1.5 in)
191860.2 mm (2.4 in)
191966.3 mm (2.6 in)
192033.3 mm (1.3 in)
192143.5 mm (1.7 in)
192255.4 mm (2.2 in)
192345.4 mm (1.8 in)
192431.2 mm (1.2 in)
1925139.2 mm (5.5 in)
192680.0 mm (3.1 in)
192761.2 mm (2.4 in)
192865.6 mm (2.6 in)
192991.6 mm (3.6 in)
193080.0 mm (3.1 in)
193161.8 mm (2.4 in)
193244.7 mm (1.8 in)
193352.1 mm (2.1 in)
193494.0 mm (3.7 in)
193553.1 mm (2.1 in)
193651.8 mm (2.0 in)
193749.5 mm (1.9 in)
193870.7 mm (2.8 in)
193949.9 mm (2.0 in)
194061.8 mm (2.4 in)
194157.2 mm (2.3 in)
194255.3 mm (2.2 in)
1943107.2 mm (4.2 in)
1944114.1 mm (4.5 in)
194552.8 mm (2.1 in)
194642.5 mm (1.7 in)
194752.9 mm (2.1 in)
194853.0 mm (2.1 in)
194949.0 mm (1.9 in)
195042.9 mm (1.7 in)
195141.9 mm (1.6 in)
195258.0 mm (2.3 in)
195341.7 mm (1.6 in)
195472.6 mm (2.9 in)
195541.7 mm (1.6 in)
195648.5 mm (1.9 in)
195783.6 mm (3.3 in)
195868.5 mm (2.7 in)
195961.9 mm (2.4 in)
196097.8 mm (3.9 in)
196146.4 mm (1.8 in)
196285.0 mm (3.3 in)
196335.8 mm (1.4 in)
196474.3 mm (2.9 in)
196556.7 mm (2.2 in)
196676.3 mm (3.0 in)
196781.9 mm (3.2 in)
196885.0 mm (3.3 in)
196959.0 mm (2.3 in)
197050.1 mm (2.0 in)
197169.1 mm (2.7 in)
197282.1 mm (3.2 in)
197365.3 mm (2.6 in)
197471.6 mm (2.8 in)
1975101.6 mm (4.0 in)
197639.1 mm (1.5 in)
197748.5 mm (1.9 in)
197856.1 mm (2.2 in)
197966.0 mm (2.6 in)
198029.0 mm (1.1 in)
1981108.0 mm (4.3 in)
198234.3 mm (1.4 in)
1983113.9 mm (4.5 in)
198444.2 mm (1.7 in)
198566.3 mm (2.6 in)
198679.5 mm (3.1 in)
198784.1 mm (3.3 in)
198887.4 mm (3.4 in)
198945.2 mm (1.8 in)
199038.2 mm (1.5 in)
199175.4 mm (3.0 in)
199243.1 mm (1.7 in)
199371.7 mm (2.8 in)
199485.1 mm (3.4 in)
199596.2 mm (3.8 in)
199675.8 mm (3.0 in)
199750.0 mm (2.0 in)
199853.8 mm (2.1 in)
199972.2 mm (2.8 in)
200081.8 mm (3.2 in)
200156.6 mm (2.2 in)
200286.8 mm (3.4 in)
200345.0 mm (1.8 in)
200457.4 mm (2.3 in)
200558.7 mm (2.3 in)
200672.9 mm (2.9 in)
200767.1 mm (2.6 in)
200875.0 mm (3.0 in)
200972.1 mm (2.8 in)
201073.0 mm (2.9 in)
20119.2 mm (0.36 in)
202462.0 mm (2.4 in)
202557.2 mm (2.3 in)
202648.8 mm (1.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ft Bayard 4W by year The longest dry spell of the year at Ft Bayard 4W, 1897 to 2026. The record is 150 days in 1972, marked on the chart; the median year is 52 days. 0501001501900192019401960198020002020Record: 150 days in 1972
The longest dry spell of the year at Ft Bayard 4W, 1897 to 2026. The record is 150 days in 1972, marked on the chart; the median year is 52 days.
Longest dry spell (CDD) at Ft Bayard 4W by year
YearLongest dry spell (CDD)
189732 days
189876 days
189968 days
190045 days
190188 days
190244 days
190394 days
190447 days
190532 days
190652 days
190743 days
190875 days
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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

88 years with a frost

Across 88 years with a frost, the median last spring frost at Ft Bayard 4W falls on 28 April and the median first autumn frost on 25 October, which leaves a median of 181 days between them.

In 1975 to 2025 the median growing season was 189 days. That is 15 days more than in 1899 to 1935.

Fitted over all years, the growing season changes by +1.2 days per decade at this station.

Frost dates and growing season at Ft Bayard 4W
MeasureMedian, all yearsEarliest period (1899 to 1935)Recent period (1975 to 2025)Recent against earliestFitted trend
Last spring frost28 April28 April22 April6 days earlier-0.2 days per decade
First autumn frost25 October22 October29 October7 days later+1.1 days per decade
Growing days181 days174 days189 days15 days more+1.2 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

109 years, 1899 to 2025

A day with at least 36.2 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 81.0 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Ft Bayard 4W: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years36.2 mm (1.4 in)
5 years48.5 mm (1.9 in)
10 years56.5 mm (2.2 in)
25 years66.5 mm (2.6 in)
50 years73.8 mm (2.9 in)
100 years81.0 mm (3.2 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 109 years of values from 1899 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: 90.2 mm (3.6 in) in 1925; 78.7 mm (3.1 in) in 2002; 73.4 mm (2.9 in) in 1904.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Ft Bayard 4W, at 2002. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2002 ran 0.6 C (1.1 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Ft Bayard 4W, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
2002+0.6+1.1possible5

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.

Download the Data

  • Data for Ft Bayard 4W standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Ft Bayard 4W 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).