Daily records
Page built 2026-10-19
Data as of 2026-10-17
Search
Built 2026-10-19 (19 October 2026)

Arcata Eureka AP Threshold Days by Year (USW00024283)

8 fixed thresholds counted per year at Arcata Eureka AP (USW00024283): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Arcata Eureka AP Thresholds

  • Arcata Eureka AP: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 2013 with 44.
  • Arcata Eureka AP: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 2010 with 61.
  • Arcata Eureka AP: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 2005 with 22.
  • Arcata Eureka AP: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 2002 with 5.
  • 8 fixed thresholds have at least one qualifying day at Arcata Eureka AP.
11 years with a qualifying day
Days at or above 30 C (86 F) per year at Arcata Eureka AP Days per year at Arcata Eureka AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 2000. 011221993: 11996: 11999: 12000: 22003: 22004: 12008: 12013: 12017: 12019: 12020: 1199319992003200820172020
Days per year at Arcata Eureka AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 2000.
Days at or above 30 C (86 F) per year at Arcata Eureka AP
YearDaysDecade average
199311
199611
199911
200021.5
200321.5
200411.5
200811.5
201311
201711
201911
202011
First to last qualifying date each year at Arcata Eureka AP For each year, a bar from the first to the last day at Arcata Eureka AP meeting 30 C (86 F). 1993: 26 October 1993 to 26 October 19931996: 8 October 1996 to 8 October 19961999: 16 October 1999 to 16 October 19992000: 18 September 2000 to 19 September 20002003: 25 October 2003 to 27 October 20032004: 13 October 2004 to 13 October 20042008: 15 May 2008 to 15 May 20082013: 4 May 2013 to 4 May 20132017: 2 September 2017 to 2 September 20172019: 24 October 2019 to 24 October 20192020: 28 September 2020 to 28 September 2020199319992003200820172020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Arcata Eureka AP meeting 30 C (86 F).
First to last qualifying date each year at Arcata Eureka AP
YearFirst dateLast date
19931993-10-261993-10-26
19961996-10-081996-10-08
19991999-10-161999-10-16
20002000-09-182000-09-19
20032003-10-252003-10-27
20042004-10-132004-10-13
20082008-05-152008-05-15
20132013-05-042013-05-04
20172017-09-022017-09-02
20192019-10-242019-10-24
20202020-09-282020-09-28

Every Fixed Threshold

Fixed thresholds at Arcata Eureka AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days11220001
35 C (95 F): Days1120171
90 F (32.2 C): Days4120031
0 C (32 F): Frost days (min344420132
10 mm (0.39 in): Days with 10 mm or more rain2861201017
25 mm (0.98 in): Days with 25 mm or more rain282220056
50 mm (1.97 in): Days with 50 mm or more rain19520021
100 mm (3.94 in): Days with 100 mm or more rain1120021

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1993.

Download the Data

  • Data for Arcata Eureka AP 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 (2026-10-17).