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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Washta Threshold Days by Year (USC00138693)

19 fixed thresholds counted per year at Washta (USC00138693): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Washta Thresholds

  • Washta: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1909 with 39.
  • Washta: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1903 with 14.
  • Washta: nights with a minimum temperature at or below 0 C (32 F) in 31 years, most in 1907 with 192.
  • Washta: nights with a minimum temperature at or below -10 C (14 F) in 31 years, most in 1917 with 84.
  • 19 fixed thresholds have at least one qualifying day at Washta.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Washta Days per year at Washta with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 86 in 1931. 02550751001906: 411907: 401908: 481909: 491910: 551911: 771912: 411913: 621914: 601915: 131917: 181918: 551919: 451920: 411921: 601922: 471923: 211924: 241925: 581926: 521927: 391928: 331929: 351930: 641931: 861932: 552015: 23190619091912191519191922192519281931
Days per year at Washta with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 86 in 1931.
Days at or above 30 C (86 F) per year at Washta
YearDaysDecade average
19064144.5
19074044.5
19084844.5
19094944.5
19105547.3
19117747.3
19124147.3
19136247.3
19146047.3
19151347.3
19171847.3
19185547.3
19194547.3
19204141
19216041
19224741
19232141
19242441
19255841
19265241
19273941
19283341
19293541
19306468.3
19318668.3
19325568.3
20152323
First to last qualifying date each year at Washta For each year, a bar from the first to the last day at Washta meeting 30 C (86 F). 1906: 24 April 1906 to 10 September 19061907: 26 March 1907 to 19 September 19071908: 13 April 1908 to 14 October 19081909: 5 May 1909 to 7 October 19091910: 23 March 1910 to 16 October 19101911: 9 May 1911 to 17 September 19111912: 19 May 1912 to 9 September 19121913: 28 May 1913 to 7 September 19131914: 25 May 1914 to 18 September 19141915: 12 May 1915 to 5 September 19151917: 17 May 1917 to 16 September 19171918: 3 May 1918 to 12 October 19181919: 9 June 1919 to 20 September 19191920: 8 June 1920 to 10 October 19201921: 24 April 1921 to 23 September 19211922: 4 June 1922 to 4 October 19221923: 2 June 1923 to 4 September 19231924: 14 April 1924 to 31 August 19241925: 20 May 1925 to 20 September 19251926: 29 April 1926 to 17 September 19261927: 26 April 1927 to 17 September 19271928: 9 May 1928 to 10 October 19281929: 4 April 1929 to 3 September 19291930: 9 April 1930 to 10 October 19301931: 8 April 1931 to 20 September 19311932: 13 May 1932 to 2 October 19322015: 10 June 2015 to 12 October 20151906191019141919192319271931JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Washta meeting 30 C (86 F).
First to last qualifying date each year at Washta
YearFirst dateLast date
19061906-04-241906-09-10
19071907-03-261907-09-19
19081908-04-131908-10-14
19091909-05-051909-10-07
19101910-03-231910-10-16
19111911-05-091911-09-17
19121912-05-191912-09-09
19131913-05-281913-09-07
19141914-05-251914-09-18
19151915-05-121915-09-05
19171917-05-171917-09-16
19181918-05-031918-10-12
19191919-06-091919-09-20
19201920-06-081920-10-10
19211921-04-241921-09-23
19221922-06-041922-10-04
19231923-06-021923-09-04
19241924-04-141924-08-31
19251925-05-201925-09-20
19261926-04-291926-09-17
19271927-04-261927-09-17
19281928-05-091928-10-10
19291929-04-041929-09-03
19301930-04-091930-10-10
19311931-04-081931-09-20
19321932-05-131932-10-02
20152015-06-102015-10-12

Every Fixed Threshold

Fixed thresholds at Washta
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2786193123
35 C (95 F): Days233819311
40 C (104 F): Days3419314
90 F (32.2 C): Days266319315
100 F (37.8 C): Days91419314
0 C (32 F): Ice days (max2770191754
0 C (32 F): Frost days (min311921907150
-10 C (14 F): Days with min3184191756
-20 C (-4 F): Days with min3135191724
-30 C (-22 F): Days with min211119243
-40 C (-40 F): Days with min2219121
20 C (68 F): Tropical nights (min302719319
25 C (77 F): Days with min6219222
10 mm (0.39 in): Days with 10 mm or more rain4139190934
25 mm (0.98 in): Days with 25 mm or more rain4114190312
50 mm (1.97 in): Days with 50 mm or more rain31620155
100 mm (3.94 in): Days with 100 mm or more rain7320153
10 cm (3.9 in): Days with 10 cm or more snowfall13619324
25 cm (9.8 in): Days with 25 cm or more snowfall1119321

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1906.

Download the Data

  • Data for Washta 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).