Built 2026-10-15 (15 October 2026)

Shoshone 1 WNW Weather Records (USC00108380)

Record envelope, standing records and threshold days for Shoshone 1 WNW (USC00108380), Idaho, United States, with 119 years of record.

Key Facts for Shoshone 1 WNW

  • Shoshone 1 WNW (USC00108380) is a weather station in Idaho, United States at 42.94 latitude and -114.42 longitude, 1,204 m (3,950 ft) above sea level.
  • The station reports from 1908 to 2026, 119 years of record.
  • 1,464 records set at Shoshone 1 WNW still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Shoshone 1 WNW set a daily record high minimum temperature of 21.7 C (71.1 F) on 28 August 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Idaho, United States, 42.94 latitude, -114.42 longitude.
  • Elevation: 1,204 m (3,950 ft).
  • Period of record: 1908 to 2026, 119 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

25 days at or beyond a record
Daily record high and record low at Shoshone 1 WNW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Shoshone 1 WNW. The lines show the 2026 daily maximum and minimum. 25 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 Shoshone 1 WNW. The lines show the 2026 daily maximum and minimum. 25 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Shoshone 1 WNW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan15.6 C (60.1 F)-37.8 C (-36.0 F)12.2 C (54.0 F)-9.4 C (15.1 F)
Feb18.3 C (64.9 F)-37.2 C (-35.0 F)17.2 C (63.0 F)-6.1 C (21.0 F)
Mar28.3 C (82.9 F)-23.9 C (-11.0 F)28.3 C (82.9 F)-5.0 C (23.0 F)
Apr32.2 C (90.0 F)-17.2 C (1.0 F)28.9 C (84.0 F)-3.3 C (26.1 F)
May38.3 C (100.9 F)-9.4 C (15.1 F)34.4 C (93.9 F)0.0 C (32.0 F)
Jun40.6 C (105.1 F)-2.8 C (27.0 F)35.0 C (95.0 F)3.3 C (37.9 F)
Jul42.8 C (109.0 F)0.0 C (32.0 F)41.1 C (106.0 F)12.8 C (55.0 F)
Aug40.6 C (105.1 F)-1.7 C (28.9 F)39.4 C (102.9 F)6.7 C (44.1 F)
Sep40.0 C (104.0 F)-8.9 C (16.0 F)30.6 C (87.1 F)7.8 C (46.0 F)
Oct33.9 C (93.0 F)-13.3 C (8.1 F)n/an/a
Nov25.0 C (77.0 F)-28.9 C (-20.0 F)n/an/a
Dec19.4 C (66.9 F)-32.8 C (-27.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Shoshone 1 WNW by the year they were set 1,464 records at Shoshone 1 WNW still stand. 1917 holds the most, with 42. 02040601908: 191909: 91910: 141911: 101912: 151913: 131914: 71915: 101916: 151917: 421918: 171919: 111920: 161921: 151922: 171923: 31924: 151925: 71926: 131927: 171928: 81929: 141930: 171931: 121932: 221933: 241934: 241935: 171936: 271937: 281938: 171939: 261940: 361941: 11942: 131943: 131944: 41945: 81946: 61947: 71948: 71949: 221950: 91951: 81952: 51953: 131954: 121955: 101956: 51958: 91959: 101960: 131961: 161962: 81963: 71964: 201965: 111966: 181967: 131968: 111969: 131970: 101971: 111972: 131973: 71974: 101975: 111976: 81977: 121978: 121979: 61980: 81981: 51982: 41983: 101984: 91985: 191986: 121987: 81988: 121989: 51990: 171991: 71992: 231993: 61994: 101995: 61996: 71997: 21998: 31999: 62000: 42001: 82002: 112003: 142004: 32005: 22006: 32007: 32008: 52009: 42010: 132011: 72012: 92013: 112014: 112015: 192016: 142017: 182018: 172019: 92020: 252021: 122022: 122023: 182024: 212025: 272026: 361908192019321944195619691981199320052017
1,464 records at Shoshone 1 WNW still stand. 1917 holds the most, with 42.
Standing records at Shoshone 1 WNW by the year they were set
Year setStanding records
190819
19099
191014
191110
191215
191313
19147
191510
191615
191742
191817
191911
192016
192115
192217
19233
192415
19257
192613
192717
19288
192914
193017
193112
193222
193324
193424
193517
193627
193728
193817
193926
194036
19411
194213
194313
19444
19458
19466
19477
19487
194922
19509
19518
19525
195313
195412
195510
19565
19589
195910
196013
196116
19628
19637
196420
196511
196618
196713
196811
196913
197010
197111
197213
19737
197410
197511
19768
197712
197812
19796
19808
19815
19824
198310
19849
198519
198612
19878
198812
19895
199017
19917
199223
19936
199410
19956
19967
19972
19983
19996
20004
20018
200211
200314
20043
20052
20063
20073
20085
20094
201013
20117
20129
201311
201411
201519
201614
201718
201817
20199
202025
202112
202212
202318
202421
202527
202636

All-Time Record Progression

2 new records
When Shoshone 1 WNW set new all-time records 2 all-time records were set at Shoshone 1 WNW between 11 July 1940 and 19 July 1960. Each dot is a new record. Record high minimum temperatureRecord high maximum temperature11 July 1940: Record high minimum temperature 27.2 C (81.0 F)19 July 1960: Record high maximum temperature 42.8 C (109.0 F)19401945195019551960
2 all-time records were set at Shoshone 1 WNW between 11 July 1940 and 19 July 1960. Each dot is a new record.
When Shoshone 1 WNW set new all-time records
DateKindDetail
1940-07-11Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
1960-07-19Record high maximum temperatureRecord high maximum temperature 42.8 C (109.0 F)

Wettest Day of Each Month

Aug: 58.4 mm (2.3 in)
Record daily precipitation for each month at Shoshone 1 WNW The wettest day on record for each calendar month at Shoshone 1 WNW. The most was 58.4 mm (2.3 in) on 3 August 1922. 0204060 Jan: 43.2 mm (1.7 in), 31 January 1963 Jan Feb: 35.6 mm (1.4 in), 3 February 2025 Feb Mar: 27.9 mm (1.1 in), 17 March 1993 Mar Apr: 23.4 mm (0.9 in), 20 April 2005 Apr May: 27.2 mm (1.1 in), 28 May 1953 May Jun: 38.1 mm (1.5 in), 8 June 1944 Jun Jul: 25.9 mm (1.0 in), 29 July 2014 Jul Aug: 58.4 mm (2.3 in), 3 August 1922 Aug Sep: 33.3 mm (1.3 in), 19 September 1948 Sep Oct: 35.6 mm (1.4 in), 25 October 2021 Oct Nov: 38.6 mm (1.5 in), 16 November 1930 Nov Dec: 41.1 mm (1.6 in), 10 December 1937 Dec
The wettest day on record for each calendar month at Shoshone 1 WNW. The most was 58.4 mm (2.3 in) on 3 August 1922.
Record daily precipitation for each month at Shoshone 1 WNW
MonthRecord daily precipitation (mm)Date
Jan43.2 mm (1.7 in)31 January 1963
Feb35.6 mm (1.4 in)3 February 2025
Mar27.9 mm (1.1 in)17 March 1993
Apr23.4 mm (0.9 in)20 April 2005
May27.2 mm (1.1 in)28 May 1953
Jun38.1 mm (1.5 in)8 June 1944
Jul25.9 mm (1.0 in)29 July 2014
Aug58.4 mm (2.3 in)3 August 1922
Sep33.3 mm (1.3 in)19 September 1948
Oct35.6 mm (1.4 in)25 October 2021
Nov38.6 mm (1.5 in)16 November 1930
Dec41.1 mm (1.6 in)10 December 1937

Period of Record Coverage

1908 to 2026
Days with data per year at Shoshone 1 WNW 119 years of record at Shoshone 1 WNW, 1908 to 2026. 26 years have data for under 90 percent of days and are left out of rankings: 1908, 1924, 1947, 1948, 1957, 1958, 1973, 1975 and others. 1908: 291 of 366 days1909: 365 of 365 days1910: 363 of 365 days1911: 360 of 365 days1912: 341 of 366 days1913: 334 of 365 days1914: 364 of 365 days1915: 334 of 365 days1916: 365 of 366 days1917: 363 of 365 days1918: 364 of 365 days1919: 365 of 365 days1920: 366 of 366 days1921: 365 of 365 days1922: 332 of 365 days1923: 362 of 365 days1924: 274 of 366 days1925: 364 of 365 days1926: 365 of 365 days1927: 364 of 365 days1928: 363 of 366 days1929: 364 of 365 days1930: 364 of 365 days1931: 363 of 365 days1932: 358 of 366 days1933: 365 of 365 days1934: 350 of 365 days1935: 363 of 365 days1936: 366 of 366 days1937: 334 of 365 days1938: 364 of 365 days1939: 365 of 365 days1940: 363 of 366 days1941: 365 of 365 days1942: 364 of 365 days1943: 364 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 303 of 365 days1948: 316 of 366 days1949: 363 of 365 days1950: 365 of 365 days1951: 364 of 365 days1952: 364 of 366 days1953: 359 of 365 days1954: 363 of 365 days1955: 329 of 365 days1956: 362 of 366 days1957: 169 of 365 days1958: 231 of 365 days1959: 355 of 365 days1960: 358 of 366 days1961: 360 of 365 days1962: 363 of 365 days1963: 360 of 365 days1964: 362 of 366 days1965: 364 of 365 days1966: 362 of 365 days1967: 361 of 365 days1968: 354 of 366 days1969: 347 of 365 days1970: 362 of 365 days1971: 357 of 365 days1972: 354 of 366 days1973: 315 of 365 days1974: 356 of 365 days1975: 327 of 365 days1976: 361 of 366 days1977: 362 of 365 days1978: 363 of 365 days1979: 335 of 365 days1980: 363 of 366 days1981: 306 of 365 days1982: 347 of 365 days1983: 319 of 365 days1984: 343 of 366 days1985: 332 of 365 days1986: 363 of 365 days1987: 361 of 365 days1988: 366 of 366 days1989: 315 of 365 days1990: 362 of 365 days1991: 346 of 365 days1992: 347 of 366 days1993: 350 of 365 days1994: 329 of 365 days1995: 327 of 365 days1996: 299 of 366 days1997: 250 of 365 days1998: 283 of 365 days1999: 271 of 365 days2000: 275 of 366 days2001: 272 of 365 days2002: 313 of 365 days2003: 311 of 365 days2004: 308 of 366 days2005: 235 of 365 days2006: 343 of 365 days2007: 271 of 365 days2008: 267 of 366 days2009: 265 of 365 days2010: 357 of 365 days2011: 364 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 358 of 365 days2015: 362 of 365 days2016: 365 of 366 days2017: 365 of 365 days2018: 362 of 365 days2019: 365 of 365 days2020: 362 of 366 days2021: 365 of 365 days2022: 355 of 365 days2023: 364 of 365 days2024: 366 of 366 days2025: 364 of 365 days2026: 247 of 365 days19201935195019651980199520102025
119 years of record at Shoshone 1 WNW, 1908 to 2026. 26 years have data for under 90 percent of days and are left out of rankings: 1908, 1924, 1947, 1948, 1957, 1958, 1973, 1975 and others.
Days with data per year at Shoshone 1 WNW
YearDays with dataShare of yearComplete
190829180%No
1909365100%Yes
191036399%Yes
191136099%Yes
191234193%Yes
191333492%Yes
1914364100%Yes
191533492%Yes
1916365100%Yes
191736399%Yes
1918364100%Yes
1919365100%Yes
1920366100%Yes
1921365100%Yes
192233291%Yes
192336299%Yes
192427475%No
1925364100%Yes
1926365100%Yes
1927364100%Yes
192836399%Yes
1929364100%Yes
1930364100%Yes
193136399%Yes
193235898%Yes
1933365100%Yes
193435096%Yes
193536399%Yes
1936366100%Yes
193733492%Yes
1938364100%Yes
1939365100%Yes
194036399%Yes
1941365100%Yes
1942364100%Yes
1943364100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
194730383%No
194831686%No
194936399%Yes
1950365100%Yes
1951364100%Yes
195236499%Yes
195335998%Yes
195436399%Yes
195532990%Yes
195636299%Yes
195716946%No
195823163%No
195935597%Yes
196035898%Yes
196136099%Yes
196236399%Yes
196336099%Yes
196436299%Yes
1965364100%Yes
196636299%Yes
196736199%Yes
196835497%Yes
196934795%Yes
197036299%Yes
197135798%Yes
197235497%Yes
197331586%No
197435698%Yes
197532790%No
197636199%Yes
197736299%Yes
197836399%Yes
197933592%Yes
198036399%Yes
198130684%No
198234795%Yes
198331987%No
198434394%Yes
198533291%Yes
198636399%Yes
198736199%Yes
1988366100%Yes
198931586%No
199036299%Yes
199134695%Yes
199234795%Yes
199335096%Yes
199432990%Yes
199532790%No
199629982%No
199725068%No
199828378%No
199927174%No
200027575%No
200127275%No
200231386%No
200331185%No
200430884%No
200523564%No
200634394%Yes
200727174%No
200826773%No
200926573%No
201035798%Yes
2011364100%Yes
2012366100%Yes
2013365100%Yes
201435898%Yes
201536299%Yes
2016365100%Yes
2017365100%Yes
201836299%Yes
2019365100%Yes
202036299%Yes
2021365100%Yes
202235597%Yes
2023364100%Yes
2024366100%Yes
2025364100%Yes
202624768%No

Latest Records

20
Latest records at Shoshone 1 WNW
DateStationRecordValueBeat old record byOld record stoodSignificance
28 August 2026Shoshone 1 WNW, USdaily high min (Provisional)21.7 C (71.1 F)0.6 C (1.1 F)85 years36 of 100 (Notable)
27 August 2026Shoshone 1 WNW, USdaily high min (Provisional)20.6 C (69.1 F)1.7 C (3.1 F)56 years30 of 100 (Routine)
26 August 2026Shoshone 1 WNW, USdaily high min (Provisional)20.6 C (69.1 F)1.2 C (2.2 F)112 years42 of 100 (Notable)
21 August 2026Shoshone 1 WNW, USdaily high min (Provisional)23.9 C (75.0 F)4.5 C (8.1 F)85 years46 of 100 (Notable)
21 August 2026Shoshone 1 WNW, USdaily high max (Tie, Provisional)38.3 C (100.9 F)tie16 years3 of 100 (Routine)
20 August 2026Shoshone 1 WNW, USdaily high max (Tie, Provisional)38.3 C (100.9 F)tie59 years6 of 100 (Routine)
25 July 2026Shoshone 1 WNW, USdaily high max (Tie)39.4 C (102.9 F)tie92 years9 of 100 (Routine)
24 July 2026Shoshone 1 WNW, USdaily high max40.6 C (105.1 F)1.2 C (2.2 F)92 years40 of 100 (Notable)
23 July 2026Shoshone 1 WNW, USdaily high max (Tie)41.1 C (106.0 F)tie23 years4 of 100 (Routine)
23 July 2026Shoshone 1 WNW, USdaily high min (Tie)21.7 C (71.1 F)tie23 years4 of 100 (Routine)
20 July 2026Shoshone 1 WNW, USdaily high min23.9 C (75.0 F)2.8 C (5.0 F)55 years33 of 100 (Routine)
17 July 2026Shoshone 1 WNW, USdaily rain9.1 mm (0.36 in)3.0 mm (0.12 in)39 years20 of 100 (Routine)
16 July 2026Shoshone 1 WNW, USdaily high min (Tie)22.2 C (72.0 F)tie8 years3 of 100 (Routine)
28 June 2026Shoshone 1 WNW, USdaily rain3.8 mm (0.15 in)1.5 mm (0.06 in)115 years20 of 100 (Routine)
26 May 2026Shoshone 1 WNW, USdaily high min (Tie)14.4 C (57.9 F)tie97 years9 of 100 (Routine)
13 May 2026Shoshone 1 WNW, USdaily high max34.4 C (93.9 F)0.5 C (0.9 F)89 years36 of 100 (Notable)
13 May 2026Shoshone 1 WNW, USdaily high min15.0 C (59.0 F)1.1 C (2.0 F)32 years21 of 100 (Routine)
12 May 2026Shoshone 1 WNW, USdaily high max32.8 C (91.0 F)0.6 C (1.1 F)89 years37 of 100 (Notable)
5 May 2026Shoshone 1 WNW, USdaily high min13.3 C (55.9 F)1.1 C (2.0 F)8 years14 of 100 (Routine)
10 April 2026Shoshone 1 WNW, USdaily high min8.9 C (48.0 F)1.1 C (2.0 F)13 years16 of 100 (Routine)

Climate Trend

84 complete years, 1909 to 2025
Annual mean temperature at Shoshone 1 WNW as warming stripes, 1909 to 2025 One stripe for each of 84 complete years at Shoshone 1 WNW, 1909 to 2025. Blue stripes are years cooler than the station's own mean of 9.2 C (48.6 F); red stripes are warmer. The coolest year was 1911, at 7.0 C (44.7 F), and the warmest was 2025, at 12.7 C (54.9 F). The strongest colour marks a difference of 3.5 C (6.3 F). 1909: 8.2 C, -1.0 C from the station mean1910: 9.0 C, -0.2 C from the station mean1911: 7.0 C, -2.2 C from the station mean1912: 7.3 C, -1.9 C from the station mean1914: 8.7 C, -0.5 C from the station mean1916: 7.3 C, -1.9 C from the station mean1917: 7.6 C, -1.7 C from the station mean1918: 9.1 C, -0.2 C from the station mean1919: 8.6 C, -0.7 C from the station mean1920: 8.7 C, -0.6 C from the station mean1921: 9.0 C, -0.2 C from the station mean1923: 8.3 C, -1.0 C from the station mean1925: 9.4 C, +0.2 C from the station mean1926: 9.7 C, +0.5 C from the station mean1927: 8.5 C, -0.7 C from the station mean1928: 8.8 C, -0.4 C from the station mean1929: 7.8 C, -1.5 C from the station mean1930: 8.2 C, -1.1 C from the station mean1931: 8.3 C, -0.9 C from the station mean1932: 7.0 C, -2.2 C from the station mean1933: 7.3 C, -2.0 C from the station mean1935: 7.7 C, -1.5 C from the station mean1936: 7.3 C, -1.9 C from the station mean1938: 8.6 C, -0.7 C from the station mean1939: 8.8 C, -0.5 C from the station mean1941: 9.6 C, +0.4 C from the station mean1942: 7.4 C, -1.8 C from the station mean1943: 8.2 C, -1.0 C from the station mean1944: 8.0 C, -1.3 C from the station mean1945: 8.6 C, -0.6 C from the station mean1946: 8.7 C, -0.5 C from the station mean1949: 8.4 C, -0.9 C from the station mean1950: 8.9 C, -0.3 C from the station mean1951: 8.2 C, -1.0 C from the station mean1952: 8.4 C, -0.8 C from the station mean1953: 9.9 C, +0.7 C from the station mean1954: 9.9 C, +0.7 C from the station mean1956: 8.8 C, -0.5 C from the station mean1959: 9.1 C, -0.1 C from the station mean1960: 9.0 C, -0.2 C from the station mean1961: 9.9 C, +0.7 C from the station mean1962: 9.2 C, -0.1 C from the station mean1963: 9.0 C, -0.2 C from the station mean1964: 7.5 C, -1.7 C from the station mean1965: 9.6 C, +0.3 C from the station mean1966: 10.1 C, +0.9 C from the station mean1967: 9.8 C, +0.5 C from the station mean1968: 9.3 C, 0.0 C from the station mean1970: 9.4 C, +0.2 C from the station mean1971: 8.8 C, -0.5 C from the station mean1972: 9.0 C, -0.2 C from the station mean1976: 9.0 C, -0.3 C from the station mean1977: 9.8 C, +0.6 C from the station mean1978: 9.3 C, +0.1 C from the station mean1980: 9.6 C, +0.4 C from the station mean1982: 8.0 C, -1.2 C from the station mean1984: 7.7 C, -1.6 C from the station mean1986: 10.1 C, +0.8 C from the station mean1987: 9.9 C, +0.6 C from the station mean1988: 9.7 C, +0.4 C from the station mean1990: 10.1 C, +0.9 C from the station mean1992: 11.1 C, +1.8 C from the station mean1993: 8.3 C, -1.0 C from the station mean1994: 10.6 C, +1.4 C from the station mean1995: 10.3 C, +1.1 C from the station mean1998: 10.3 C, +1.0 C from the station mean2002: 9.3 C, 0.0 C from the station mean2003: 11.0 C, +1.7 C from the station mean2004: 9.5 C, +0.3 C from the station mean2006: 9.9 C, +0.7 C from the station mean2010: 9.0 C, -0.3 C from the station mean2011: 8.3 C, -0.9 C from the station mean2012: 10.7 C, +1.5 C from the station mean2013: 9.6 C, +0.4 C from the station mean2014: 10.0 C, +0.7 C from the station mean2017: 10.7 C, +1.5 C from the station mean2018: 11.8 C, +2.6 C from the station mean2019: 10.9 C, +1.7 C from the station mean2020: 12.0 C, +2.7 C from the station mean2021: 12.6 C, +3.3 C from the station mean2022: 10.9 C, +1.7 C from the station mean2023: 11.6 C, +2.4 C from the station mean2024: 12.4 C, +3.2 C from the station mean2025: 12.7 C, +3.5 C from the station mean190919201930194019501960197019801990200020102020
One stripe for each of 84 complete years at Shoshone 1 WNW, 1909 to 2025. Blue stripes are years cooler than the station's own mean of 9.2 C (48.6 F); red stripes are warmer. The coolest year was 1911, at 7.0 C (44.7 F), and the warmest was 2025, at 12.7 C (54.9 F). The strongest colour marks a difference of 3.5 C (6.3 F).
Annual mean temperature at Shoshone 1 WNW as warming stripes, 1909 to 2025
YearAnnual mean temperatureDifference from the station mean
19098.2 C-0.98 C
19109.0 C-0.21 C
19117.0 C-2.18 C
19127.3 C-1.93 C
19148.7 C-0.48 C
19167.3 C-1.88 C
19177.6 C-1.66 C
19189.1 C-0.15 C
19198.6 C-0.67 C
19208.7 C-0.57 C
19219.0 C-0.18 C
19238.3 C-0.97 C
19259.4 C+0.16 C
19269.7 C+0.47 C
19278.5 C-0.70 C
19288.8 C-0.39 C
19297.8 C-1.46 C
19308.2 C-1.05 C
19318.3 C-0.92 C
19327.0 C-2.18 C
19337.3 C-1.96 C
19357.7 C-1.50 C
19367.3 C-1.89 C
19388.6 C-0.67 C
19398.8 C-0.46 C
19419.6 C+0.36 C
19427.4 C-1.81 C
19438.2 C-1.03 C
19448.0 C-1.26 C
19458.6 C-0.58 C
19468.7 C-0.54 C
19498.4 C-0.86 C
19508.9 C-0.32 C
19518.2 C-1.02 C
19528.4 C-0.84 C
19539.9 C+0.67 C
19549.9 C+0.66 C
19568.8 C-0.47 C
19599.1 C-0.09 C
19609.0 C-0.21 C
19619.9 C+0.67 C
19629.2 C-0.05 C
19639.0 C-0.23 C
19647.5 C-1.74 C
19659.6 C+0.34 C
196610.1 C+0.91 C
19679.8 C+0.55 C
19689.3 C+0.03 C
19709.4 C+0.18 C
19718.8 C-0.47 C
19729.0 C-0.24 C
19769.0 C-0.25 C
19779.8 C+0.58 C
19789.3 C+0.11 C
19809.6 C+0.41 C
19828.0 C-1.23 C
19847.7 C-1.56 C
198610.1 C+0.84 C
19879.9 C+0.63 C
19889.7 C+0.43 C
199010.1 C+0.89 C
199211.1 C+1.85 C
19938.3 C-0.97 C
199410.6 C+1.39 C
199510.3 C+1.11 C
199810.3 C+1.03 C
20029.3 C+0.04 C
200311.0 C+1.74 C
20049.5 C+0.27 C
20069.9 C+0.72 C
20109.0 C-0.27 C
20118.3 C-0.91 C
201210.7 C+1.49 C
20139.6 C+0.39 C
201410.0 C+0.73 C
201710.7 C+1.52 C
201811.8 C+2.58 C
201910.9 C+1.68 C
202012.0 C+2.73 C
202112.6 C+3.33 C
202210.9 C+1.70 C
202311.6 C+2.42 C
202412.4 C+3.19 C
202512.7 C+3.49 C

The annual mean temperature here has risen by 0.3 C (0.2 to 0.3) per decade over 1909 to 2025. In Fahrenheit: 0.5 F (0.4 to 0.6) per decade. The slope is a straight line fitted to 84 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Shoshone 1 WNW
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.3 C (0.2 to 0.3) per decade0.5 F (0.4 to 0.6) per decade1909 to 202584Rise
Mean daily maximum0.2 C (0.1 to 0.3) per decade0.4 F (0.2 to 0.5) per decade1909 to 202584Rise
Mean daily minimum0.3 C (0.3 to 0.4) per decade0.6 F (0.5 to 0.7) per decade1909 to 202584Rise

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

1908 to 2026
Yearly extremes at Shoshone 1 WNW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.8 C (109.0 F)196039.4 C (102.9 F)119
Coldest night (TNn)-37.8 C (-36.0 F)1937-23.3 C (-9.9 F)119
Wettest day (Rx1day)58.4 mm (2.3 in)192221.3 mm (0.8 in)119
Wettest five days (Rx5day)100.4 mm (4.0 in)196436.5 mm (1.4 in)119
Longest dry spell (CDD)133 days193552 days119

Hottest day (TXx)

Hottest day (TXx) at Shoshone 1 WNW by year The hottest day of the year at Shoshone 1 WNW, 1908 to 2026. The record is 42.8 C (109.0 F) in 1960, marked on the chart; the median year is 39.4 C (102.9 F). 2530354045192019401960198020002020Record: 42.8 C (109.0 F) in 1960
The hottest day of the year at Shoshone 1 WNW, 1908 to 2026. The record is 42.8 C (109.0 F) in 1960, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Shoshone 1 WNW by year
YearHottest day (TXx)
190835.6 C (96.1 F)
190933.9 C (93.0 F)
191035.0 C (95.0 F)
191132.8 C (91.0 F)
191233.3 C (91.9 F)
191337.2 C (99.0 F)
191437.8 C (100.0 F)
191537.8 C (100.0 F)
191638.3 C (100.9 F)
191738.3 C (100.9 F)
191837.8 C (100.0 F)
191938.3 C (100.9 F)
192039.4 C (102.9 F)
192137.8 C (100.0 F)
192238.9 C (102.0 F)
192337.8 C (100.0 F)
192438.3 C (100.9 F)
192538.9 C (102.0 F)
192639.4 C (102.9 F)
192737.8 C (100.0 F)
192840.0 C (104.0 F)
192938.9 C (102.0 F)
193037.8 C (100.0 F)
193140.0 C (104.0 F)
193237.2 C (99.0 F)
193339.4 C (102.9 F)
193441.1 C (106.0 F)
193539.4 C (102.9 F)
193639.4 C (102.9 F)
193738.3 C (100.9 F)
193835.6 C (96.1 F)
193940.0 C (104.0 F)
194040.6 C (105.1 F)
194137.2 C (99.0 F)
194237.2 C (99.0 F)
194337.8 C (100.0 F)
194436.7 C (98.1 F)
194537.8 C (100.0 F)
194639.4 C (102.9 F)
194738.3 C (100.9 F)
194839.4 C (102.9 F)
194940.0 C (104.0 F)
195037.8 C (100.0 F)
195138.9 C (102.0 F)
195235.6 C (96.1 F)
195337.2 C (99.0 F)
195438.9 C (102.0 F)
195539.4 C (102.9 F)
195640.0 C (104.0 F)
195729.4 C (84.9 F)
195840.0 C (104.0 F)
195941.1 C (106.0 F)
196042.8 C (109.0 F)
196140.6 C (105.1 F)
196239.4 C (102.9 F)
196338.3 C (100.9 F)
196441.7 C (107.1 F)
196538.9 C (102.0 F)
196640.6 C (105.1 F)
196739.4 C (102.9 F)
196840.6 C (105.1 F)
196940.0 C (104.0 F)
197039.4 C (102.9 F)
197140.0 C (104.0 F)
197240.0 C (104.0 F)
197342.8 C (109.0 F)
197440.6 C (105.1 F)
197539.4 C (102.9 F)
197639.4 C (102.9 F)
197738.9 C (102.0 F)
197838.3 C (100.9 F)
197940.0 C (104.0 F)
198038.9 C (102.0 F)
198138.9 C (102.0 F)
198238.9 C (102.0 F)
198340.6 C (105.1 F)
198438.3 C (100.9 F)
198540.6 C (105.1 F)
198639.4 C (102.9 F)
198739.4 C (102.9 F)
198839.4 C (102.9 F)
198935.0 C (95.0 F)
199040.6 C (105.1 F)
199138.9 C (102.0 F)
199239.4 C (102.9 F)
199335.6 C (96.1 F)
199440.6 C (105.1 F)
199537.8 C (100.0 F)
199638.3 C (100.9 F)
199738.9 C (102.0 F)
199841.7 C (107.1 F)
199938.9 C (102.0 F)
200040.0 C (104.0 F)
200140.0 C (104.0 F)
200242.2 C (108.0 F)
200341.1 C (106.0 F)
200438.3 C (100.9 F)
200538.9 C (102.0 F)
200641.1 C (106.0 F)
200740.0 C (104.0 F)
200837.8 C (100.0 F)
200938.9 C (102.0 F)
201038.3 C (100.9 F)
201137.8 C (100.0 F)
201239.4 C (102.9 F)
201340.6 C (105.1 F)
201440.6 C (105.1 F)
201540.6 C (105.1 F)
201638.3 C (100.9 F)
201740.0 C (104.0 F)
201840.6 C (105.1 F)
201938.3 C (100.9 F)
202040.6 C (105.1 F)
202139.4 C (102.9 F)
202240.0 C (104.0 F)
202339.4 C (102.9 F)
202440.6 C (105.1 F)
202540.0 C (104.0 F)
202641.1 C (106.0 F)

Coldest night (TNn)

Coldest night (TNn) at Shoshone 1 WNW by year The coldest night of the year at Shoshone 1 WNW, 1908 to 2026. The record is -37.8 C (-36.0 F) in 1937, marked on the chart; the median year is -23.3 C (-9.9 F). -40-30-20-100192019401960198020002020Record: -37.8 C (-36.0 F) in 1937
The coldest night of the year at Shoshone 1 WNW, 1908 to 2026. The record is -37.8 C (-36.0 F) in 1937, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Shoshone 1 WNW by year
YearColdest night (TNn)
1908-17.2 C (1.0 F)
1909-17.8 C (0.0 F)
1910-30.0 C (-22.0 F)
1911-22.2 C (-8.0 F)
1912-27.2 C (-17.0 F)
1913-27.2 C (-17.0 F)
1914-22.8 C (-9.0 F)
1915-27.2 C (-17.0 F)
1916-27.2 C (-17.0 F)
1917-32.2 C (-26.0 F)
1918-18.3 C (-0.9 F)
1919-28.9 C (-20.0 F)
1920-18.9 C (-2.0 F)
1921-23.3 C (-9.9 F)
1922-36.7 C (-34.1 F)
1923-26.1 C (-15.0 F)
1924-28.3 C (-18.9 F)
1925-18.9 C (-2.0 F)
1926-27.2 C (-17.0 F)
1927-26.7 C (-16.1 F)
1928-23.3 C (-9.9 F)
1929-28.3 C (-18.9 F)
1930-33.3 C (-27.9 F)
1931-28.9 C (-20.0 F)
1932-26.1 C (-15.0 F)
1933-37.2 C (-35.0 F)
1934-14.4 C (6.1 F)
1935-30.0 C (-22.0 F)
1936-30.6 C (-23.1 F)
1937-37.8 C (-36.0 F)
1938-19.4 C (-2.9 F)
1939-22.2 C (-8.0 F)
1940-20.0 C (-4.0 F)
1941-21.1 C (-6.0 F)
1942-28.9 C (-20.0 F)
1943-24.4 C (-11.9 F)
1944-20.6 C (-5.1 F)
1945-20.6 C (-5.1 F)
1946-23.3 C (-9.9 F)
1947-28.3 C (-18.9 F)
1948-23.9 C (-11.0 F)
1949-31.1 C (-24.0 F)
1950-26.7 C (-16.1 F)
1951-27.8 C (-18.0 F)
1952-21.7 C (-7.1 F)
1953-17.2 C (1.0 F)
1954-17.2 C (1.0 F)
1955-28.9 C (-20.0 F)
1956-27.8 C (-18.0 F)
1957-18.9 C (-2.0 F)
1958-16.1 C (3.0 F)
1959-23.9 C (-11.0 F)
1960-23.9 C (-11.0 F)
1961-23.3 C (-9.9 F)
1962-31.7 C (-25.1 F)
1963-28.9 C (-20.0 F)
1964-25.6 C (-14.1 F)
1965-16.1 C (3.0 F)
1966-19.4 C (-2.9 F)
1967-27.8 C (-18.0 F)
1968-21.7 C (-7.1 F)
1969-15.6 C (3.9 F)
1970-17.8 C (0.0 F)
1971-24.4 C (-11.9 F)
1972-31.1 C (-24.0 F)
1973-19.4 C (-2.9 F)
1974-26.1 C (-15.0 F)
1975-18.9 C (-2.0 F)
1976-23.3 C (-9.9 F)
1977-22.8 C (-9.0 F)
1978-23.3 C (-9.9 F)
1979-25.6 C (-14.1 F)
1980-24.4 C (-11.9 F)
1981-17.8 C (0.0 F)
1982-26.1 C (-15.0 F)
1983-27.2 C (-17.0 F)
1984-27.2 C (-17.0 F)
1985-29.4 C (-20.9 F)
1986-18.3 C (-0.9 F)
1987-23.3 C (-9.9 F)
1988-23.3 C (-9.9 F)
1989-28.9 C (-20.0 F)
1990-32.8 C (-27.0 F)
1991-25.0 C (-13.0 F)
1992-25.6 C (-14.1 F)
1993-21.7 C (-7.1 F)
1994-17.8 C (0.0 F)
1995-15.0 C (5.0 F)
1996-26.7 C (-16.1 F)
1997-16.7 C (1.9 F)
1998-22.2 C (-8.0 F)
1999-15.0 C (5.0 F)
2000-15.6 C (3.9 F)
2001-17.8 C (0.0 F)
2002-21.1 C (-6.0 F)
2003-11.7 C (10.9 F)
2004-21.7 C (-7.1 F)
2005-19.4 C (-2.9 F)
2006-16.7 C (1.9 F)
2007-22.8 C (-9.0 F)
2008-22.2 C (-8.0 F)
2009-21.1 C (-6.0 F)
2010-24.4 C (-11.9 F)
2011-20.0 C (-4.0 F)
2012-16.1 C (3.0 F)
2013-26.1 C (-15.0 F)
2014-22.2 C (-8.0 F)
2015-24.4 C (-11.9 F)
2016-21.7 C (-7.1 F)
2017-22.2 C (-8.0 F)
2018-11.7 C (10.9 F)
2019-12.8 C (9.0 F)
2020-12.2 C (10.0 F)
2021-11.1 C (12.0 F)
2022-17.2 C (1.0 F)
2023-15.0 C (5.0 F)
2024-17.8 C (0.0 F)
2025-15.6 C (3.9 F)
2026-9.4 C (15.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Shoshone 1 WNW by year The wettest day of the year at Shoshone 1 WNW, 1908 to 2026. The record is 58.4 mm (2.3 in) in 1922, marked on the chart; the median year is 21.3 mm (0.8 in). 0204060192019401960198020002020Record: 58.4 mm (2.3 in) in 1922
The wettest day of the year at Shoshone 1 WNW, 1908 to 2026. The record is 58.4 mm (2.3 in) in 1922, marked on the chart; the median year is 21.3 mm (0.8 in).
Wettest day (Rx1day) at Shoshone 1 WNW by year
YearWettest day (Rx1day)
190816.0 mm (0.6 in)
190930.2 mm (1.2 in)
191019.6 mm (0.8 in)
191125.4 mm (1.0 in)
191219.1 mm (0.8 in)
191315.7 mm (0.6 in)
191430.5 mm (1.2 in)
191524.6 mm (1.0 in)
191619.3 mm (0.8 in)
191717.8 mm (0.7 in)
191816.0 mm (0.6 in)
191915.7 mm (0.6 in)
192017.5 mm (0.7 in)
192127.4 mm (1.1 in)
192258.4 mm (2.3 in)
192333.0 mm (1.3 in)
192415.2 mm (0.6 in)
192514.2 mm (0.6 in)
192611.7 mm (0.5 in)
192724.4 mm (1.0 in)
192816.5 mm (0.6 in)
192917.5 mm (0.7 in)
193038.6 mm (1.5 in)
193123.9 mm (0.9 in)
193222.4 mm (0.9 in)
193316.0 mm (0.6 in)
193410.2 mm (0.4 in)
193522.6 mm (0.9 in)
193628.4 mm (1.1 in)
193741.1 mm (1.6 in)
193826.4 mm (1.0 in)
193916.0 mm (0.6 in)
194015.7 mm (0.6 in)
194117.3 mm (0.7 in)
194217.8 mm (0.7 in)
194332.0 mm (1.3 in)
194438.1 mm (1.5 in)
194516.5 mm (0.6 in)
194633.0 mm (1.3 in)
194713.2 mm (0.5 in)
194833.3 mm (1.3 in)
194921.6 mm (0.9 in)
195025.4 mm (1.0 in)
195119.8 mm (0.8 in)
195215.2 mm (0.6 in)
195327.2 mm (1.1 in)
195413.2 mm (0.5 in)
195521.6 mm (0.9 in)
195618.8 mm (0.7 in)
195718.8 mm (0.7 in)
195821.3 mm (0.8 in)
195927.9 mm (1.1 in)
196030.7 mm (1.2 in)
196119.1 mm (0.8 in)
196217.3 mm (0.7 in)
196343.2 mm (1.7 in)
196436.3 mm (1.4 in)
196512.7 mm (0.5 in)
19667.6 mm (0.30 in)
196727.9 mm (1.1 in)
196825.4 mm (1.0 in)
196911.7 mm (0.5 in)
197029.5 mm (1.2 in)
197117.0 mm (0.7 in)
197221.1 mm (0.8 in)
197322.4 mm (0.9 in)
197416.5 mm (0.6 in)
197532.8 mm (1.3 in)
197628.4 mm (1.1 in)
197715.2 mm (0.6 in)
197818.8 mm (0.7 in)
197915.0 mm (0.6 in)
198017.8 mm (0.7 in)
198130.5 mm (1.2 in)
198217.8 mm (0.7 in)
198321.1 mm (0.8 in)
198418.5 mm (0.7 in)
198529.2 mm (1.1 in)
198626.7 mm (1.1 in)
198719.1 mm (0.8 in)
198822.6 mm (0.9 in)
198921.3 mm (0.8 in)
199025.4 mm (1.0 in)
199122.9 mm (0.9 in)
199222.4 mm (0.9 in)
199327.9 mm (1.1 in)
199420.8 mm (0.8 in)
199526.7 mm (1.1 in)
199622.9 mm (0.9 in)
199734.0 mm (1.3 in)
199821.3 mm (0.8 in)
199917.0 mm (0.7 in)
200016.5 mm (0.6 in)
200123.6 mm (0.9 in)
200227.4 mm (1.1 in)
200316.3 mm (0.6 in)
200420.6 mm (0.8 in)
200525.4 mm (1.0 in)
200618.0 mm (0.7 in)
200724.4 mm (1.0 in)
200817.8 mm (0.7 in)
200929.5 mm (1.2 in)
201013.0 mm (0.5 in)
201124.9 mm (1.0 in)
201238.6 mm (1.5 in)
201312.7 mm (0.5 in)
201433.3 mm (1.3 in)
201524.1 mm (0.9 in)
201619.1 mm (0.8 in)
201723.9 mm (0.9 in)
201819.8 mm (0.8 in)
201916.5 mm (0.6 in)
202029.2 mm (1.1 in)
202135.6 mm (1.4 in)
202222.9 mm (0.9 in)
202320.3 mm (0.8 in)
202430.5 mm (1.2 in)
202535.6 mm (1.4 in)
202618.5 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Shoshone 1 WNW by year The wettest five days of the year at Shoshone 1 WNW, 1908 to 2026. The record is 100.4 mm (4.0 in) in 1964, marked on the chart; the median year is 36.5 mm (1.4 in). 0255075100125192019401960198020002020Record: 100.4 mm (4.0 in) in 1964
The wettest five days of the year at Shoshone 1 WNW, 1908 to 2026. The record is 100.4 mm (4.0 in) in 1964, marked on the chart; the median year is 36.5 mm (1.4 in).
Wettest five days (Rx5day) at Shoshone 1 WNW by year
YearWettest five days (Rx5day)
190848.5 mm (1.9 in)
190984.3 mm (3.3 in)
191031.3 mm (1.2 in)
191141.9 mm (1.6 in)
191235.8 mm (1.4 in)
191318.9 mm (0.7 in)
191430.5 mm (1.2 in)
191540.1 mm (1.6 in)
191629.2 mm (1.1 in)
191737.4 mm (1.5 in)
191816.0 mm (0.6 in)
191928.4 mm (1.1 in)
192022.9 mm (0.9 in)
192142.2 mm (1.7 in)
192259.4 mm (2.3 in)
192342.4 mm (1.7 in)
192421.4 mm (0.8 in)
192529.1 mm (1.1 in)
192628.2 mm (1.1 in)
192763.3 mm (2.5 in)
192838.9 mm (1.5 in)
192925.3 mm (1.0 in)
193046.2 mm (1.8 in)
193133.1 mm (1.3 in)
193223.7 mm (0.9 in)
193329.5 mm (1.2 in)
193423.7 mm (0.9 in)
193536.8 mm (1.4 in)
193648.7 mm (1.9 in)
193755.9 mm (2.2 in)
193846.0 mm (1.8 in)
193923.9 mm (0.9 in)
194037.8 mm (1.5 in)
194125.6 mm (1.0 in)
194246.0 mm (1.8 in)
194343.4 mm (1.7 in)
194449.3 mm (1.9 in)
194530.5 mm (1.2 in)
194633.0 mm (1.3 in)
194716.3 mm (0.6 in)
194835.3 mm (1.4 in)
194945.3 mm (1.8 in)
195044.9 mm (1.8 in)
195136.4 mm (1.4 in)
195236.6 mm (1.4 in)
195341.9 mm (1.6 in)
195420.3 mm (0.8 in)
195536.8 mm (1.4 in)
195633.3 mm (1.3 in)
195735.7 mm (1.4 in)
195821.6 mm (0.9 in)
195939.0 mm (1.5 in)
196035.3 mm (1.4 in)
196120.0 mm (0.8 in)
196237.8 mm (1.5 in)
196370.9 mm (2.8 in)
1964100.4 mm (4.0 in)
196521.1 mm (0.8 in)
196614.9 mm (0.6 in)
196750.2 mm (2.0 in)
196867.6 mm (2.7 in)
196939.4 mm (1.6 in)
197037.1 mm (1.5 in)
197146.5 mm (1.8 in)
197244.0 mm (1.7 in)
197330.0 mm (1.2 in)
197423.1 mm (0.9 in)
197545.1 mm (1.8 in)
197646.9 mm (1.8 in)
197737.3 mm (1.5 in)
197836.8 mm (1.4 in)
197922.9 mm (0.9 in)
198036.4 mm (1.4 in)
198156.4 mm (2.2 in)
198240.9 mm (1.6 in)
198341.4 mm (1.6 in)
198425.6 mm (1.0 in)
198542.7 mm (1.7 in)
198673.1 mm (2.9 in)
198719.6 mm (0.8 in)
198837.5 mm (1.5 in)
198931.6 mm (1.2 in)
199025.4 mm (1.0 in)
199130.7 mm (1.2 in)
199229.2 mm (1.1 in)
199352.8 mm (2.1 in)
199429.7 mm (1.2 in)
199536.5 mm (1.4 in)
199648.9 mm (1.9 in)
199749.3 mm (1.9 in)
199861.1 mm (2.4 in)
199942.4 mm (1.7 in)
200027.3 mm (1.1 in)
200133.2 mm (1.3 in)
200239.6 mm (1.6 in)
200333.1 mm (1.3 in)
200440.5 mm (1.6 in)
200568.9 mm (2.7 in)
200652.2 mm (2.1 in)
200731.5 mm (1.2 in)
200838.2 mm (1.5 in)
200932.0 mm (1.3 in)
201017.4 mm (0.7 in)
201124.9 mm (1.0 in)
201226.4 mm (1.0 in)
201313.5 mm (0.5 in)
201446.0 mm (1.8 in)
201542.5 mm (1.7 in)
201632.0 mm (1.3 in)
201755.2 mm (2.2 in)
201821.8 mm (0.9 in)
201932.8 mm (1.3 in)
202035.0 mm (1.4 in)
202137.1 mm (1.5 in)
202222.9 mm (0.9 in)
202329.3 mm (1.2 in)
202430.5 mm (1.2 in)
202545.2 mm (1.8 in)
202621.9 mm (0.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Shoshone 1 WNW by year The longest dry spell of the year at Shoshone 1 WNW, 1908 to 2026. The record is 133 days in 1935, marked on the chart; the median year is 52 days. 050100150192019401960198020002020Record: 133 days in 1935
The longest dry spell of the year at Shoshone 1 WNW, 1908 to 2026. The record is 133 days in 1935, marked on the chart; the median year is 52 days.
Longest dry spell (CDD) at Shoshone 1 WNW by year
YearLongest dry spell (CDD)
190833 days
190936 days
191057 days
191193 days
191264 days
191333 days
191481 days
191550 days
191676 days
191765 days
191824 days
1919104 days
192039 days
192137 days
192250 days
192336 days
192432 days
192533 days
192661 days
192770 days
192850 days
192969 days
193032 days
193164 days
193243 days
1933124 days
1934132 days
1935133 days
193649 days
193751 days
193848 days
193951 days
194062 days
194138 days
194295 days
194399 days
194445 days
194532 days
194650 days
194746 days
194868 days
194966 days
195043 days
195145 days
1952107 days
1953129 days
195451 days
195593 days
195686 days
195723 days
195874 days
195978 days
196053 days
196140 days
196254 days
196341 days
196435 days
196554 days
196696 days
196756 days
196865 days
196966 days
197051 days
197135 days
197251 days
197339 days
197498 days
197576 days
197689 days
197743 days
197854 days
197960 days
198057 days
1981107 days
198229 days
198330 days
198440 days
198550 days
198667 days
198779 days
198885 days
198937 days
199035 days
199134 days
199263 days
199347 days
199472 days
199536 days
199696 days
199730 days
199827 days
199985 days
2000106 days
200154 days
200239 days
200342 days
200426 days
200531 days
200697 days
200781 days
2008100 days
200947 days
201018 days
2011107 days
201273 days
201349 days
201440 days
201544 days
201665 days
201742 days
201884 days
201970 days
202055 days
202140 days
202253 days
202367 days
202452 days
202551 days
202632 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

84 years with a frost

Across 84 years with a frost, the median last spring frost at Shoshone 1 WNW falls on 23 May and the median first autumn frost on 21 September, which leaves a median of 122 days between them.

In 1980 to 2025 the median growing season was 144 days. That is 38 days more than in 1909 to 1945.

Fitted over all years, the growing season changes by +5.6 days per decade at this station.

Frost dates and growing season at Shoshone 1 WNW
MeasureMedian, all yearsEarliest period (1909 to 1945)Recent period (1980 to 2025)Recent against earliestFitted trend
Last spring frost23 May1 June7 May25 days earlier-2.7 days per decade
First autumn frost21 September11 September4 October23 days later+2.9 days per decade
Growing days122 days106 days144 days38 days more+5.6 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

104 years, 1909 to 2025

A day with at least 21.7 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 48.8 mm (1.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Shoshone 1 WNW: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years21.7 mm (0.9 in)
5 years28.6 mm (1.1 in)
10 years33.3 mm (1.3 in)
25 years39.5 mm (1.6 in)
50 years44.1 mm (1.7 in)
100 years48.8 mm (1.9 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 104 years of values from 1909 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: 58.4 mm (2.3 in) in 1922; 43.2 mm (1.7 in) in 1963; 41.1 mm (1.6 in) in 1937.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of Shoshone 1 WNW, at 2002 and 2018. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2002 ran 0.4 C (0.8 F) lower than in the years before (possible change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2018 ran 1.4 C (2.5 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Shoshone 1 WNW, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
2002-0.4-0.8possible5
2018+1.4+2.5likely5

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

2006 to 2025 against 1961 to 1990

Over 2006 to 2025, Shoshone 1 WNW had a mean temperature of 10.9 C (51.6 F) and 242.5 mm (9.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Tacony 13 SE (United States, 1,012 km away), Wah Wah Rch (United States, 502 km away) and Saltair Salt Plt (United States, 308 km away).

Climate twins of Shoshone 1 WNW: stations whose 1961 to 1990 climate is closest to its 2006 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Tacony 13 SEUnited States1,012 km (629 mi)10.9 C (51.6 F)263.3 mm (10.4 in)0.78
Wah Wah RchUnited States502 km (312 mi)10.6 C (51.0 F)174.2 mm (6.9 in)0.80
Saltair Salt PltUnited States308 km (191 mi)10.4 C (50.7 F)310.5 mm (12.2 in)0.80

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 Shoshone 1 WNW standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Shoshone 1 WNW 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).