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Built 2026-10-19 (19 October 2026)

Kopperl 5 NNE Threshold Days by Year (USC00414866)

4 fixed thresholds counted per year at Kopperl 5 NNE (USC00414866): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kopperl 5 NNE Thresholds

  • Kopperl 5 NNE: days with 10 mm (0.39 in) or more of precipitation in 20 years, most in 1997 with 41.
  • Kopperl 5 NNE: days with 25 mm (0.98 in) or more of precipitation in 20 years, most in 2007 with 15.
  • Kopperl 5 NNE: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1995 with 5.
  • Kopperl 5 NNE: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 2000 with 2.
  • 4 fixed thresholds have at least one qualifying day at Kopperl 5 NNE.
20 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Kopperl 5 NNE Days per year at Kopperl 5 NNE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1997. 02040601916: 211950: 121992: 291993: 301994: 341995: 271996: 271997: 411998: 281999: 202000: 252001: 332002: 252003: 272004: 252005: 172006: 202007: 332008: 222009: 251916199219941996199820002002200420062008
Days per year at Kopperl 5 NNE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1997.
Days with 10 mm (0.39 in) or more of precipitation per year at Kopperl 5 NNE
YearDaysDecade average
19162121
19501212
19922929.5
19933029.5
19943429.5
19952729.5
19962729.5
19974129.5
19982829.5
19992029.5
20002525.2
20013325.2
20022525.2
20032725.2
20042525.2
20051725.2
20062025.2
20073325.2
20082225.2
20092525.2
First to last qualifying date each year at Kopperl 5 NNE For each year, a bar from the first to the last day at Kopperl 5 NNE meeting 10 mm (0.39 in). 1916: 21 January 1916 to 22 November 19161950: 13 January 1950 to 19 September 19501992: 18 January 1992 to 15 December 19921993: 9 January 1993 to 22 December 19931994: 21 January 1994 to 29 December 19941995: 18 January 1995 to 18 December 19951996: 18 January 1996 to 29 November 19961997: 7 January 1997 to 24 December 19971998: 5 January 1998 to 11 December 19981999: 29 January 1999 to 12 December 19992000: 8 January 2000 to 27 December 20002001: 11 January 2001 to 17 December 20012002: 24 January 2002 to 24 December 20022003: 13 January 2003 to 13 December 20032004: 16 January 2004 to 23 December 20042005: 3 January 2005 to 16 September 20052006: 29 January 2006 to 30 December 20062007: 4 January 2007 to 25 November 20072008: 26 January 2008 to 11 November 20082009: 6 January 2009 to 2 December 20091916199319961999200220052008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Kopperl 5 NNE meeting 10 mm (0.39 in).
First to last qualifying date each year at Kopperl 5 NNE
YearFirst dateLast date
19161916-01-211916-11-22
19501950-01-131950-09-19
19921992-01-181992-12-15
19931993-01-091993-12-22
19941994-01-211994-12-29
19951995-01-181995-12-18
19961996-01-181996-11-29
19971997-01-071997-12-24
19981998-01-051998-12-11
19991999-01-291999-12-12
20002000-01-082000-12-27
20012001-01-112001-12-17
20022002-01-242002-12-24
20032003-01-132003-12-13
20042004-01-162004-12-23
20052005-01-032005-09-16
20062006-01-292006-12-30
20072007-01-042007-11-25
20082008-01-262008-11-11
20092009-01-062009-12-02

Every Fixed Threshold

Fixed thresholds at Kopperl 5 NNE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2041199725
25 mm (0.98 in): Days with 25 mm or more rain2015200710
50 mm (1.97 in): Days with 50 mm or more rain18519954
100 mm (3.94 in): Days with 100 mm or more rain4220002

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

  • Data for Kopperl 5 NNE 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).