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

Grand Ronde Threshold Days by Year (USC00353415)

6 fixed thresholds counted per year at Grand Ronde (USC00353415): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grand Ronde Thresholds

  • Grand Ronde: days with 10 mm (0.39 in) or more of precipitation in 10 years, most in 1933 with 79.
  • Grand Ronde: days with 25 mm (0.98 in) or more of precipitation in 10 years, most in 1931 with 17.
  • Grand Ronde: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1933 with 6.
  • Grand Ronde: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1933 with 1.
  • 6 fixed thresholds have at least one qualifying day at Grand Ronde.
10 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Grand Ronde Days per year at Grand Ronde with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 79 in 1933. 0204060801924: 411925: 531926: 551927: 591928: 521929: 341930: 411931: 691933: 791934: 581924192519261927192819291930193119331934
Days per year at Grand Ronde with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 79 in 1933.
Days with 10 mm (0.39 in) or more of precipitation per year at Grand Ronde
YearDaysDecade average
19244149
19255349
19265549
19275949
19285249
19293449
19304161.8
19316961.8
19337961.8
19345861.8
First to last qualifying date each year at Grand Ronde For each year, a bar from the first to the last day at Grand Ronde meeting 10 mm (0.39 in). 1924: 7 January 1924 to 31 December 19241925: 2 January 1925 to 22 December 19251926: 5 January 1926 to 30 December 19261927: 1 January 1927 to 30 November 19271928: 4 January 1928 to 30 December 19281929: 2 January 1929 to 25 December 19291930: 4 January 1930 to 23 December 19301931: 1 January 1931 to 31 December 19311933: 1 January 1933 to 29 December 19331934: 2 January 1934 to 30 December 193419241926192819301933JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Grand Ronde meeting 10 mm (0.39 in).
First to last qualifying date each year at Grand Ronde
YearFirst dateLast date
19241924-01-071924-12-31
19251925-01-021925-12-22
19261926-01-051926-12-30
19271927-01-011927-11-30
19281928-01-041928-12-30
19291929-01-021929-12-25
19301930-01-041930-12-23
19311931-01-011931-12-31
19331933-01-011933-12-29
19341934-01-021934-12-30

Every Fixed Threshold

Fixed thresholds at Grand Ronde
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1079193358
25 mm (0.98 in): Days with 25 mm or more rain1017193111
50 mm (1.97 in): Days with 50 mm or more rain7619336
100 mm (3.94 in): Days with 100 mm or more rain1119331
10 cm (3.9 in): Days with 10 cm or more snowfall1119301
25 cm (9.8 in): Days with 25 cm or more snowfall1119301

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1924.

Download the Data

  • Data for Grand Ronde 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).