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Built 2026-10-19 (19 October 2026)

Bettles AP Threshold Days by Year (USW00026533)

13 fixed thresholds counted per year at Bettles AP (USW00026533): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bettles AP Thresholds

  • Bettles AP: days with a maximum temperature at or below 0 C (32 F) in 74 years, most in 1972 with 201.
  • Bettles AP: nights with a minimum temperature at or below 0 C (32 F) in 74 years, most in 1992 with 266.
  • Bettles AP: nights with a minimum temperature at or below -10 C (14 F) in 74 years, most in 1958 with 198.
  • Bettles AP: nights with a minimum temperature at or below -20 C (-4 F) in 74 years, most in 1956 with 143.
  • 13 fixed thresholds have at least one qualifying day at Bettles AP.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Bettles AP Days per year at Bettles AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1999. 024681953: 31955: 51957: 11958: 21960: 11967: 21968: 31969: 41971: 21972: 31974: 21975: 21977: 41983: 31986: 41987: 11990: 61991: 61992: 11994: 31999: 82004: 12005: 12009: 12013: 22015: 32016: 22017: 12019: 52023: 12024: 219531960197119771990199920132019
Days per year at Bettles AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1999.
Days at or above 30 C (86 F) per year at Bettles AP
YearDaysDecade average
195332.8
195552.8
195712.8
195822.8
196012.5
196722.5
196832.5
196942.5
197122.6
197232.6
197422.6
197522.6
197742.6
198332.7
198642.7
198712.7
199064.8
199164.8
199214.8
199434.8
199984.8
200411
200511
200911
201322.6
201532.6
201622.6
201712.6
201952.6
202311.5
202421.5
First to last qualifying date each year at Bettles AP For each year, a bar from the first to the last day at Bettles AP meeting 30 C (86 F). 1953: 28 July 1953 to 30 July 19531955: 22 July 1955 to 26 July 19551957: 12 July 1957 to 12 July 19571958: 4 July 1958 to 5 July 19581960: 13 July 1960 to 13 July 19601967: 18 June 1967 to 19 June 19671968: 22 July 1968 to 24 July 19681969: 15 June 1969 to 21 June 19691971: 24 June 1971 to 25 June 19711972: 14 June 1972 to 11 July 19721974: 13 July 1974 to 14 July 19741975: 12 July 1975 to 13 July 19751977: 30 July 1977 to 4 August 19771983: 31 May 1983 to 26 June 19831986: 4 July 1986 to 7 July 19861987: 22 June 1987 to 22 June 19871990: 2 June 1990 to 12 August 19901991: 20 June 1991 to 30 June 19911992: 29 June 1992 to 29 June 19921994: 27 July 1994 to 6 August 19941999: 11 June 1999 to 4 August 19992004: 29 June 2004 to 29 June 20042005: 28 June 2005 to 28 June 20052009: 7 July 2009 to 7 July 20092013: 18 June 2013 to 19 June 20132015: 21 June 2015 to 6 July 20152016: 13 July 2016 to 14 July 20162017: 8 July 2017 to 8 July 20172019: 28 June 2019 to 10 July 20192023: 23 July 2023 to 23 July 20232024: 27 June 2024 to 24 July 202419531960197119771990199920132019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bettles AP meeting 30 C (86 F).
First to last qualifying date each year at Bettles AP
YearFirst dateLast date
19531953-07-281953-07-30
19551955-07-221955-07-26
19571957-07-121957-07-12
19581958-07-041958-07-05
19601960-07-131960-07-13
19671967-06-181967-06-19
19681968-07-221968-07-24
19691969-06-151969-06-21
19711971-06-241971-06-25
19721972-06-141972-07-11
19741974-07-131974-07-14
19751975-07-121975-07-13
19771977-07-301977-08-04
19831983-05-311983-06-26
19861986-07-041986-07-07
19871987-06-221987-06-22
19901990-06-021990-08-12
19911991-06-201991-06-30
19921992-06-291992-06-29
19941994-07-271994-08-06
19991999-06-111999-08-04
20042004-06-292004-06-29
20052005-06-282005-06-28
20092009-07-072009-07-07
20132013-06-182013-06-19
20152015-06-212015-07-06
20162016-07-132016-07-14
20172017-07-082017-07-08
20192019-06-282019-07-10
20232023-07-232023-07-23
20242024-06-272024-07-24

Every Fixed Threshold

Fixed thresholds at Bettles AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days31819992
90 F (32.2 C): Days11319911
0 C (32 F): Ice days (max74201197221
0 C (32 F): Frost days (min74266199248
-10 C (14 F): Days with min74198195820
-20 C (-4 F): Days with min7414319563
-30 C (-22 F): Days with min7397195640
-40 C (-40 F): Days with min7347195615
10 mm (0.39 in): Days with 10 mm or more rain742519633
25 mm (0.98 in): Days with 25 mm or more rain22419923
50 mm (1.97 in): Days with 50 mm or more rain1119941
10 cm (3.9 in): Days with 10 cm or more snowfall681319931
25 cm (9.8 in): Days with 25 cm or more snowfall21219841

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

Download the Data

  • Data for Bettles 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).