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

Chiwawa River Threshold Days by Year (USC00451426)

7 fixed thresholds counted per year at Chiwawa River (USC00451426): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chiwawa River Thresholds

  • Chiwawa River: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1950 with 76.
  • Chiwawa River: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1948 with 29.
  • Chiwawa River: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1955 with 12.
  • Chiwawa River: days with 10 cm (3.9 in) or more of snowfall in 10 years, most in 1948 with 50.
  • 7 fixed thresholds have at least one qualifying day at Chiwawa River.
19 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Chiwawa River Days per year at Chiwawa River with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 76 in 1950. 0204060801926: 521929: 281931: 561932: 561933: 741934: 621936: 381939: 421940: 491941: 511942: 361943: 291944: 451947: 481948: 721949: 491950: 761951: 631955: 611926193119331936194019421944194819501955
Days per year at Chiwawa River with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 76 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Chiwawa River
YearDaysDecade average
19265240
19292840
19315654.7
19325654.7
19337454.7
19346254.7
19363854.7
19394254.7
19404947.4
19415147.4
19423647.4
19432947.4
19444547.4
19474847.4
19487247.4
19494947.4
19507666.7
19516366.7
19556166.7
First to last qualifying date each year at Chiwawa River For each year, a bar from the first to the last day at Chiwawa River meeting 10 mm (0.39 in). 1926: 5 January 1926 to 31 December 19261929: 2 January 1929 to 31 December 19291931: 2 January 1931 to 31 December 19311932: 9 January 1932 to 31 December 19321933: 1 January 1933 to 30 December 19331934: 2 January 1934 to 29 December 19341936: 1 January 1936 to 23 December 19361939: 1 January 1939 to 31 December 19391940: 1 January 1940 to 29 December 19401941: 16 January 1941 to 23 December 19411942: 24 January 1942 to 31 December 19421943: 19 January 1943 to 30 November 19431944: 1 January 1944 to 28 December 19441947: 10 January 1947 to 31 December 19471948: 1 January 1948 to 31 December 19481949: 1 January 1949 to 31 December 19491950: 5 January 1950 to 24 December 19501951: 2 January 1951 to 29 December 19511955: 1 January 1955 to 26 December 19551926193219361941194419491955JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chiwawa River meeting 10 mm (0.39 in).
First to last qualifying date each year at Chiwawa River
YearFirst dateLast date
19261926-01-051926-12-31
19291929-01-021929-12-31
19311931-01-021931-12-31
19321932-01-091932-12-31
19331933-01-011933-12-30
19341934-01-021934-12-29
19361936-01-011936-12-23
19391939-01-011939-12-31
19401940-01-011940-12-29
19411941-01-161941-12-23
19421942-01-241942-12-31
19431943-01-191943-11-30
19441944-01-011944-12-28
19471947-01-101947-12-31
19481948-01-011948-12-31
19491949-01-011949-12-31
19501950-01-051950-12-24
19511951-01-021951-12-29
19551955-01-011955-12-26

Every Fixed Threshold

Fixed thresholds at Chiwawa River
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1976195061
25 mm (0.98 in): Days with 25 mm or more rain1929194824
50 mm (1.97 in): Days with 50 mm or more rain1912195512
100 mm (3.94 in): Days with 100 mm or more rain4219512
10 cm (3.9 in): Days with 10 cm or more snowfall1050194834
25 cm (9.8 in): Days with 25 cm or more snowfall1029194819
50 cm (19.7 in): Days with 50 cm or more snowfall9519484

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

  • Data for Chiwawa River 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).