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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Red Hill Threshold Days by Year (USS0021D04S)

12 fixed thresholds counted per year at Red Hill (USS0021D04S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Red Hill Thresholds

  • Red Hill: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1996 with 121.
  • Red Hill: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1984 with 58.
  • Red Hill: days with 50 mm (1.97 in) or more of precipitation in 48 years, most in 1990 with 27.
  • Red Hill: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 2009 with 61.
  • 12 fixed thresholds have at least one qualifying day at Red Hill.
30 years with a qualifying day
Days at or above 30 C (86 F) per year at Red Hill Days per year at Red Hill with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1998. 0510151990: 81992: 81994: 41996: 111997: 11998: 152000: 12002: 52003: 82004: 42005: 32006: 42007: 22008: 32009: 62010: 12012: 22013: 12014: 32015: 92016: 12017: 112018: 52020: 42021: 112022: 102023: 42024: 82025: 82026: 11990199620002004200720102014201720212024
Days per year at Red Hill with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1998.
Days at or above 30 C (86 F) per year at Red Hill
YearDaysDecade average
199087.8
199287.8
199447.8
1996117.8
199717.8
1998157.8
200014
200254
200384
200444
200534
200644
200724
200834
200964
201014.1
201224.1
201314.1
201434.1
201594.1
201614.1
2017114.1
201854.1
202046.6
2021116.6
2022106.6
202346.6
202486.6
202586.6
202616.6
First to last qualifying date each year at Red Hill For each year, a bar from the first to the last day at Red Hill meeting 30 C (86 F). 1990: 11 July 1990 to 12 August 19901992: 22 June 1992 to 17 August 19921994: 16 July 1994 to 22 July 19941996: 13 July 1996 to 25 August 19961997: 5 August 1997 to 5 August 19971998: 22 July 1998 to 6 September 19982000: 30 July 2000 to 30 July 20002002: 26 June 2002 to 13 August 20022003: 21 July 2003 to 5 September 20032004: 24 July 2004 to 13 August 20042005: 21 July 2005 to 4 August 20052006: 26 June 2006 to 23 July 20062007: 5 July 2007 to 12 July 20072008: 15 August 2008 to 17 August 20082009: 28 July 2009 to 19 August 20092010: 17 August 2010 to 17 August 20102012: 5 August 2012 to 17 August 20122013: 1 July 2013 to 1 July 20132014: 15 July 2014 to 11 August 20142015: 8 June 2015 to 1 August 20152016: 18 August 2016 to 18 August 20162017: 1 August 2017 to 3 September 20172018: 29 July 2018 to 9 August 20182020: 27 July 2020 to 17 August 20202021: 26 June 2021 to 13 August 20212022: 25 July 2022 to 1 September 20222023: 15 July 2023 to 16 August 20232024: 5 July 2024 to 1 August 20242025: 14 July 2025 to 4 September 20252026: 20 August 2026 to 20 August 202619901997200320072012201620212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Red Hill meeting 30 C (86 F).
First to last qualifying date each year at Red Hill
YearFirst dateLast date
19901990-07-111990-08-12
19921992-06-221992-08-17
19941994-07-161994-07-22
19961996-07-131996-08-25
19971997-08-051997-08-05
19981998-07-221998-09-06
20002000-07-302000-07-30
20022002-06-262002-08-13
20032003-07-212003-09-05
20042004-07-242004-08-13
20052005-07-212005-08-04
20062006-06-262006-07-23
20072007-07-052007-07-12
20082008-08-152008-08-17
20092009-07-282009-08-19
20102010-08-172010-08-17
20122012-08-052012-08-17
20132013-07-012013-07-01
20142014-07-152014-08-11
20152015-06-082015-08-01
20162016-08-182016-08-18
20172017-08-012017-09-03
20182018-07-292018-08-09
20202020-07-272020-08-17
20212021-06-262021-08-13
20222022-07-252022-09-01
20232023-07-152023-08-16
20242024-07-052024-08-01
20252025-07-142025-09-04
20262026-08-202026-08-20

Every Fixed Threshold

Fixed thresholds at Red Hill
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days301519981
35 C (95 F): Days2220212
90 F (32.2 C): Days18719981
0 C (32 F): Ice days (max3861200916
0 C (32 F): Frost days (min36194200083
-10 C (14 F): Days with min352220093
-20 C (-4 F): Days with min9719905
20 C (68 F): Tropical nights (min8620222
10 mm (0.39 in): Days with 10 mm or more rain48121199652
25 mm (0.98 in): Days with 25 mm or more rain4858198413
50 mm (1.97 in): Days with 50 mm or more rain482719906
100 mm (3.94 in): Days with 100 mm or more rain30819901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1990.

Download the Data

  • Data for Red Hill 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).