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Built 2026-10-19 (19 October 2026)

Alpine Threshold Days by Year (USC00040136)

14 fixed thresholds counted per year at Alpine (USC00040136): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alpine Thresholds

  • Alpine: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1978 with 29.
  • Alpine: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 1978 with 14.
  • Alpine: nights with a minimum temperature at or above 20 C (68 F) in 57 years, most in 1995 with 34.
  • Alpine: days with a maximum temperature at or above 30 C (86 F) in 51 years, most in 1978 with 137.
  • 14 fixed thresholds have at least one qualifying day at Alpine.
51 years with a qualifying day
Days at or above 30 C (86 F) per year at Alpine Days per year at Alpine with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 137 in 1978. 0501001501953: 1031954: 1041955: 921956: 1051957: 1041958: 1361959: 1041960: 1241961: 941962: 841963: 631964: 991965: 1001966: 1161967: 1121968: 1011969: 651970: 1141972: 891974: 1071975: 871976: 961977: 1211978: 1371979: 1061980: 1221981: 1291982: 861983: 971985: 821986: 661987: 591995: 992009: 872010: 462011: 732012: 942013: 832014: 1092015: 952016: 952017: 1072018: 1002019: 852020: 1142021: 982022: 1052023: 752024: 1042025: 892026: 82195319591965197219791986201220182024
Days per year at Alpine with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 137 in 1978.
Days at or above 30 C (86 F) per year at Alpine
YearDaysDecade average
1953103106.9
1954104106.9
195592106.9
1956105106.9
1957104106.9
1958136106.9
1959104106.9
196012495.8
19619495.8
19628495.8
19636395.8
19649995.8
196510095.8
196611695.8
196711295.8
196810195.8
19696595.8
1970114107.1
197289107.1
1974107107.1
197587107.1
197696107.1
1977121107.1
1978137107.1
1979106107.1
198012291.6
198112991.6
19828691.6
19839791.6
19858291.6
19866691.6
19875991.6
19959999
20098787
20104688.7
20117388.7
20129488.7
20138388.7
201410988.7
20159588.7
20169588.7
201710788.7
201810088.7
20198588.7
202011495.3
20219895.3
202210595.3
20237595.3
202410495.3
20258995.3
20268295.3
First to last qualifying date each year at Alpine For each year, a bar from the first to the last day at Alpine meeting 30 C (86 F). 1953: 23 March 1953 to 25 November 19531954: 16 April 1954 to 26 November 19541955: 13 April 1955 to 10 November 19551956: 15 May 1956 to 11 November 19561957: 28 April 1957 to 25 November 19571958: 15 April 1958 to 10 December 19581959: 17 January 1959 to 2 December 19591960: 19 March 1960 to 22 October 19601961: 2 April 1961 to 17 October 19611962: 6 April 1962 to 1 November 19621963: 3 February 1963 to 9 October 19631964: 13 April 1964 to 5 November 19641965: 19 April 1965 to 4 November 19651966: 30 March 1966 to 2 November 19661967: 7 May 1967 to 13 November 19671968: 28 March 1968 to 10 November 19681969: 30 March 1969 to 3 November 19691970: 5 April 1970 to 2 November 19701972: 4 March 1972 to 5 October 19721974: 14 April 1974 to 12 November 19741975: 15 January 1975 to 13 November 19751976: 30 April 1976 to 8 November 19761977: 15 February 1977 to 26 November 19771978: 17 March 1978 to 8 November 19781979: 11 May 1979 to 4 December 19791980: 13 April 1980 to 29 December 19801981: 18 February 1981 to 2 November 19811982: 19 April 1982 to 24 October 19821983: 17 May 1983 to 3 November 19831985: 14 February 1985 to 5 October 19851986: 24 February 1986 to 26 October 19861987: 8 April 1987 to 26 October 19871995: 3 February 1995 to 23 November 19952009: 19 April 2009 to 3 November 20092010: 5 June 2010 to 5 November 20102011: 31 March 2011 to 30 October 20112012: 16 May 2012 to 5 November 20122013: 20 April 2013 to 13 November 20132014: 14 February 2014 to 27 November 20142015: 14 March 2015 to 27 October 20152016: 16 February 2016 to 14 November 20162017: 12 March 2017 to 24 November 20172018: 9 April 2018 to 3 November 20182019: 8 April 2019 to 18 November 20192020: 23 April 2020 to 5 November 20202021: 1 April 2021 to 14 November 20212022: 24 March 2022 to 20 October 20222023: 21 April 2023 to 5 November 20232024: 11 June 2024 to 26 October 20242025: 24 March 2025 to 11 November 20252026: 27 February 2026 to 31 August 202619531960196719761983201120182025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Alpine meeting 30 C (86 F).
First to last qualifying date each year at Alpine
YearFirst dateLast date
19531953-03-231953-11-25
19541954-04-161954-11-26
19551955-04-131955-11-10
19561956-05-151956-11-11
19571957-04-281957-11-25
19581958-04-151958-12-10
19591959-01-171959-12-02
19601960-03-191960-10-22
19611961-04-021961-10-17
19621962-04-061962-11-01
19631963-02-031963-10-09
19641964-04-131964-11-05
19651965-04-191965-11-04
19661966-03-301966-11-02
19671967-05-071967-11-13
19681968-03-281968-11-10
19691969-03-301969-11-03
19701970-04-051970-11-02
19721972-03-041972-10-05
19741974-04-141974-11-12
19751975-01-151975-11-13
19761976-04-301976-11-08
19771977-02-151977-11-26
19781978-03-171978-11-08
19791979-05-111979-12-04
19801980-04-131980-12-29
19811981-02-181981-11-02
19821982-04-191982-10-24
19831983-05-171983-11-03
19851985-02-141985-10-05
19861986-02-241986-10-26
19871987-04-081987-10-26
19951995-02-031995-11-23
20092009-04-192009-11-03
20102010-06-052010-11-05
20112011-03-312011-10-30
20122012-05-162012-11-05
20132013-04-202013-11-13
20142014-02-142014-11-27
20152015-03-142015-10-27
20162016-02-162016-11-14
20172017-03-122017-11-24
20182018-04-092018-11-03
20192019-04-082019-11-18
20202020-04-232020-11-05
20212021-04-012021-11-14
20222022-03-242022-10-20
20232023-04-212023-11-05
20242024-06-112024-10-26
20252025-03-242025-11-11
20262026-02-272026-08-31

Every Fixed Threshold

Fixed thresholds at Alpine
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days51137197882
35 C (95 F): Days5162197822
40 C (104 F): Days301119793
45 C (113 F): Days1120201
90 F (32.2 C): Days51107197860
100 F (37.8 C): Days492519793
110 F (43.3 C): Days3119551
0 C (32 F): Frost days (min482819535
20 C (68 F): Tropical nights (min5734199526
25 C (77 F): Days with min22420244
10 mm (0.39 in): Days with 10 mm or more rain652919785
25 mm (0.98 in): Days with 25 mm or more rain591419782
50 mm (1.97 in): Days with 50 mm or more rain23519951
100 mm (3.94 in): Days with 100 mm or more rain10n/a1

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 Alpine 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 (2026-10-12).