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

Cottage Grove Threshold Days by Year (USC00471840)

6 fixed thresholds counted per year at Cottage Grove (USC00471840): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cottage Grove Thresholds

  • Cottage Grove: days with 10 mm (0.39 in) or more of precipitation in 9 years, most in 1913 with 30.
  • Cottage Grove: days with 25 mm (0.98 in) or more of precipitation in 9 years, most in 1913 with 10.
  • Cottage Grove: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1912 with 3.
  • 6 fixed thresholds have at least one qualifying day at Cottage Grove.
9 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Cottage Grove Days per year at Cottage Grove with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1913. 01020301911: 281912: 271913: 302004: 262005: 212006: 292007: 302008: 272009: 25191119121913200420052006200720082009
Days per year at Cottage Grove with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1913.
Days with 10 mm (0.39 in) or more of precipitation per year at Cottage Grove
YearDaysDecade average
19112828.3
19122728.3
19133028.3
20042626.3
20052126.3
20062926.3
20073026.3
20082726.3
20092526.3
First to last qualifying date each year at Cottage Grove For each year, a bar from the first to the last day at Cottage Grove meeting 10 mm (0.39 in). 1911: 14 February 1911 to 26 December 19111912: 26 February 1912 to 17 December 19121913: 23 January 1913 to 19 November 19132004: 5 March 2004 to 7 December 20042005: 2 January 2005 to 16 November 20052006: 17 February 2006 to 28 November 20062007: 24 February 2007 to 23 December 20072008: 22 January 2008 to 28 December 20082009: 27 February 2009 to 24 December 200919111913200520072009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Cottage Grove meeting 10 mm (0.39 in).
First to last qualifying date each year at Cottage Grove
YearFirst dateLast date
19111911-02-141911-12-26
19121912-02-261912-12-17
19131913-01-231913-11-19
20042004-03-052004-12-07
20052005-01-022005-11-16
20062006-02-172006-11-28
20072007-02-242007-12-23
20082008-01-222008-12-28
20092009-02-272009-12-24

Every Fixed Threshold

Fixed thresholds at Cottage Grove
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain930191325
25 mm (0.98 in): Days with 25 mm or more rain910191310
50 mm (1.97 in): Days with 50 mm or more rain7319121
100 mm (3.94 in): Days with 100 mm or more rain40n/a1
10 cm (3.9 in): Days with 10 cm or more snowfall60n/a2
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 1911.

Download the Data

  • Data for Cottage Grove 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).