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Built 2026-10-19 (19 October 2026)

Annette AP Threshold Days by Year (USW00025308)

12 fixed thresholds counted per year at Annette AP (USW00025308): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Annette AP Thresholds

  • Annette AP: nights with a minimum temperature at or below 0 C (32 F) in 77 years, most in 1975 with 120.
  • Annette AP: days with a maximum temperature at or below 0 C (32 F) in 76 years, most in 1950 with 40.
  • Annette AP: days with 10 mm (0.39 in) or more of precipitation in 76 years, most in 1959 with 133.
  • Annette AP: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 1959 with 64.
  • 12 fixed thresholds have at least one qualifying day at Annette AP.
20 years with a qualifying day
Days at or above 30 C (86 F) per year at Annette AP Days per year at Annette AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1969. 02461941: 21942: 11948: 11952: 21958: 11960: 11963: 11969: 51971: 11976: 11977: 21980: 11990: 21991: 11992: 12004: 32009: 32012: 12015: 22017: 11941194819581963197119771990199220092015
Days per year at Annette AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1969.
Days at or above 30 C (86 F) per year at Annette AP
YearDaysDecade average
194121.3
194211.3
194811.3
195221.5
195811.5
196012.3
196312.3
196952.3
197111.3
197611.3
197721.3
198011
199021.3
199111.3
199211.3
200433
200933
201211.3
201521.3
201711.3
First to last qualifying date each year at Annette AP For each year, a bar from the first to the last day at Annette AP meeting 30 C (86 F). 1941: 15 July 1941 to 16 July 19411942: 7 August 1942 to 7 August 19421948: 10 June 1948 to 10 June 19481952: 11 July 1952 to 12 July 19521958: 6 June 1958 to 6 June 19581960: 8 August 1960 to 8 August 19601963: 21 May 1963 to 21 May 19631969: 23 May 1969 to 11 June 19691971: 27 July 1971 to 27 July 19711976: 30 July 1976 to 30 July 19761977: 14 August 1977 to 18 August 19771980: 11 August 1980 to 11 August 19801990: 21 July 1990 to 11 August 19901991: 20 June 1991 to 20 June 19911992: 29 June 1992 to 29 June 19922004: 18 June 2004 to 20 June 20042009: 29 July 2009 to 31 July 20092012: 23 June 2012 to 23 June 20122015: 6 July 2015 to 7 July 20152017: 5 August 2017 to 5 August 20171941195219631976199020042015JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Annette AP meeting 30 C (86 F).
First to last qualifying date each year at Annette AP
YearFirst dateLast date
19411941-07-151941-07-16
19421942-08-071942-08-07
19481948-06-101948-06-10
19521952-07-111952-07-12
19581958-06-061958-06-06
19601960-08-081960-08-08
19631963-05-211963-05-21
19691969-05-231969-06-11
19711971-07-271971-07-27
19761976-07-301976-07-30
19771977-08-141977-08-18
19801980-08-111980-08-11
19901990-07-211990-08-11
19911991-06-201991-06-20
19921992-06-291992-06-29
20042004-06-182004-06-20
20092009-07-292009-07-31
20122012-06-232012-06-23
20152015-07-062015-07-07
20172017-08-052017-08-05

Every Fixed Threshold

Fixed thresholds at Annette AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days20519691
90 F (32.2 C): Days3220042
0 C (32 F): Ice days (max764019501
0 C (32 F): Frost days (min77120197571
-10 C (14 F): Days with min571919505
-20 C (-4 F): Days with min1119471
10 mm (0.39 in): Days with 10 mm or more rain76133195988
25 mm (0.98 in): Days with 25 mm or more rain7664195930
50 mm (1.97 in): Days with 50 mm or more rain752819596
100 mm (3.94 in): Days with 100 mm or more rain9419591
10 cm (3.9 in): Days with 10 cm or more snowfall551019713
25 cm (9.8 in): Days with 25 cm or more snowfall9319712

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

  • Data for Annette 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 (2025-12-31).