Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Washington Threshold Days by Year (USC00369312)

9 fixed thresholds counted per year at Washington (USC00369312): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Washington Thresholds

  • Washington: days with 10 mm (0.39 in) or more of precipitation in 6 years, most in 1927 with 42.
  • Washington: days with 25 mm (0.98 in) or more of precipitation in 6 years, most in 1950 with 10.
  • Washington: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1927 with 2.
  • 9 fixed thresholds have at least one qualifying day at Washington.
6 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Washington Days per year at Washington with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1927. 02040601922: 271923: 391925: 311926: 281927: 421950: 37192219231925192619271950
Days per year at Washington with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1927.
Days with 10 mm (0.39 in) or more of precipitation per year at Washington
YearDaysDecade average
19222733.4
19233933.4
19253133.4
19262833.4
19274233.4
19503737
First to last qualifying date each year at Washington For each year, a bar from the first to the last day at Washington meeting 10 mm (0.39 in). 1922: 11 January 1922 to 28 December 19221923: 21 January 1923 to 31 December 19231925: 29 January 1925 to 5 December 19251926: 8 January 1926 to 25 December 19261927: 19 January 1927 to 16 December 19271950: 3 January 1950 to 7 December 1950192219231925192619271950JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Washington meeting 10 mm (0.39 in).
First to last qualifying date each year at Washington
YearFirst dateLast date
19221922-01-111922-12-28
19231923-01-211923-12-31
19251925-01-291925-12-05
19261926-01-081926-12-25
19271927-01-191927-12-16
19501950-01-031950-12-07

Every Fixed Threshold

Fixed thresholds at Washington
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Frost days (min10n/a145
-10 C (14 F): Days with min10n/a30
-20 C (-4 F): Days with min10n/a1
20 C (68 F): Tropical nights (min10n/a5
10 mm (0.39 in): Days with 10 mm or more rain642192737
25 mm (0.98 in): Days with 25 mm or more rain610195010
50 mm (1.97 in): Days with 50 mm or more rain3219272
10 cm (3.9 in): Days with 10 cm or more snowfall20n/a4
25 cm (9.8 in): Days with 25 cm or more snowfall10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

  • Data for Washington 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).