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Built 2026-10-19 (19 October 2026)

McGrath AP Threshold Days by Year (USW00026510)

12 fixed thresholds counted per year at McGrath AP (USW00026510): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for McGrath AP Thresholds

  • McGrath AP: days with a maximum temperature at or below 0 C (32 F) in 84 years, most in 1992 with 174.
  • McGrath AP: nights with a minimum temperature at or below 0 C (32 F) in 83 years, most in 1984 with 255.
  • McGrath AP: nights with a minimum temperature at or below -10 C (14 F) in 83 years, most in 1955 with 177.
  • McGrath AP: nights with a minimum temperature at or below -20 C (-4 F) in 83 years, most in 1956 with 129.
  • 12 fixed thresholds have at least one qualifying day at McGrath AP.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at McGrath AP Days per year at McGrath AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 2019. 02461942: 11953: 31955: 11957: 21960: 11962: 31967: 11968: 41969: 21971: 31972: 11975: 21977: 31982: 11986: 21990: 31991: 21992: 11993: 21997: 11998: 12004: 22009: 22013: 42015: 12016: 12019: 62021: 12024: 21942195719671971197719901993200420152021
Days per year at McGrath AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 2019.
Days at or above 30 C (86 F) per year at McGrath AP
YearDaysDecade average
194211
195332
195512
195722
196012.2
196232.2
196712.2
196842.2
196922.2
197132.3
197212.3
197522.3
197732.3
198211.5
198621.5
199031.7
199121.7
199211.7
199321.7
199711.7
199811.7
200422
200922
201343
201513
201613
201963
202111.5
202421.5
First to last qualifying date each year at McGrath AP For each year, a bar from the first to the last day at McGrath AP meeting 30 C (86 F). 1942: 20 June 1942 to 20 June 19421953: 25 July 1953 to 27 July 19531955: 22 July 1955 to 22 July 19551957: 6 June 1957 to 7 June 19571960: 13 July 1960 to 13 July 19601962: 19 June 1962 to 20 July 19621967: 13 July 1967 to 13 July 19671968: 23 July 1968 to 6 August 19681969: 14 June 1969 to 15 June 19691971: 23 June 1971 to 25 June 19711972: 7 July 1972 to 7 July 19721975: 6 July 1975 to 11 July 19751977: 11 July 1977 to 21 August 19771982: 8 July 1982 to 8 July 19821986: 15 June 1986 to 3 July 19861990: 29 June 1990 to 1 July 19901991: 20 June 1991 to 21 June 19911992: 3 July 1992 to 3 July 19921993: 20 July 1993 to 21 July 19931997: 4 July 1997 to 4 July 19971998: 30 June 1998 to 30 June 19982004: 27 June 2004 to 18 August 20042009: 6 July 2009 to 7 July 20092013: 29 May 2013 to 18 June 20132015: 19 June 2015 to 19 June 20152016: 13 July 2016 to 13 July 20162019: 27 June 2019 to 8 July 20192021: 3 August 2021 to 3 August 20212024: 23 July 2024 to 24 July 202419421960196919771991199820152024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at McGrath AP meeting 30 C (86 F).
First to last qualifying date each year at McGrath AP
YearFirst dateLast date
19421942-06-201942-06-20
19531953-07-251953-07-27
19551955-07-221955-07-22
19571957-06-061957-06-07
19601960-07-131960-07-13
19621962-06-191962-07-20
19671967-07-131967-07-13
19681968-07-231968-08-06
19691969-06-141969-06-15
19711971-06-231971-06-25
19721972-07-071972-07-07
19751975-07-061975-07-11
19771977-07-111977-08-21
19821982-07-081982-07-08
19861986-06-151986-07-03
19901990-06-291990-07-01
19911991-06-201991-06-21
19921992-07-031992-07-03
19931993-07-201993-07-21
19971997-07-041997-07-04
19981998-06-301998-06-30
20042004-06-272004-08-18
20092009-07-062009-07-07
20132013-05-292013-06-18
20152015-06-192015-06-19
20162016-07-132016-07-13
20192019-06-272019-07-08
20212021-08-032021-08-03
20242024-07-232024-07-24

Every Fixed Threshold

Fixed thresholds at McGrath AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days29620192
90 F (32.2 C): Days4320131
0 C (32 F): Ice days (max84174199290
0 C (32 F): Frost days (min832551984144
-10 C (14 F): Days with min83177195595
-20 C (-4 F): Days with min83129195675
-30 C (-22 F): Days with min8388195639
-40 C (-40 F): Days with min8133199013
10 mm (0.39 in): Days with 10 mm or more rain7619199010
25 mm (0.98 in): Days with 25 mm or more rain41319751
10 cm (3.9 in): Days with 10 cm or more snowfall741419902
25 cm (9.8 in): Days with 25 cm or more snowfall17319851

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

  • Data for McGrath 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).