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Built 2026-10-19 (19 October 2026)

Calliham Threshold Days by Year (USC00411337)

18 fixed thresholds counted per year at Calliham (USC00411337): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Calliham Thresholds

  • Calliham: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1997 with 32.
  • Calliham: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 2007 with 15.
  • Calliham: days with 50 mm (1.97 in) or more of precipitation in 40 years, most in 2002 with 6.
  • Calliham: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 2025 with 240.
  • 18 fixed thresholds have at least one qualifying day at Calliham.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Calliham Days per year at Calliham with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 240 in 2025. 01002003002000: 2002001: 1722002: 1752003: 1552004: 1612005: 1872006: 2152007: 1472008: 1932009: 2002010: 1742011: 2202012: 2032013: 1802014: 1872015: 1722016: 1752017: 1972018: 1802019: 1782020: 1992021: 1982022: 2112023: 1982024: 2242025: 2402026: 192200020032006200920122015201820212024
Days per year at Calliham with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 240 in 2025.
Days at or above 30 C (86 F) per year at Calliham
YearDaysDecade average
2000200180.5
2001172180.5
2002175180.5
2003155180.5
2004161180.5
2005187180.5
2006215180.5
2007147180.5
2008193180.5
2009200180.5
2010174186.6
2011220186.6
2012203186.6
2013180186.6
2014187186.6
2015172186.6
2016175186.6
2017197186.6
2018180186.6
2019178186.6
2020199208.9
2021198208.9
2022211208.9
2023198208.9
2024224208.9
2025240208.9
2026192208.9
First to last qualifying date each year at Calliham For each year, a bar from the first to the last day at Calliham meeting 30 C (86 F). 2000: 20 January 2000 to 3 November 20002001: 7 February 2001 to 3 November 20012002: 24 January 2002 to 13 October 20022003: 17 April 2003 to 6 November 20032004: 1 April 2004 to 1 November 20042005: 16 February 2005 to 28 November 20052006: 2 January 2006 to 11 November 20062007: 28 March 2007 to 12 December 20072008: 5 February 2008 to 27 December 20082009: 11 February 2009 to 30 October 20092010: 1 April 2010 to 26 November 20102011: 18 February 2011 to 22 November 20112012: 24 February 2012 to 20 December 20122013: 5 March 2013 to 22 November 20132014: 15 February 2014 to 31 October 20142015: 30 March 2015 to 27 December 20152016: 2 February 2016 to 19 November 20162017: 22 January 2017 to 5 December 20172018: 19 February 2018 to 15 October 20182019: 16 February 2019 to 16 December 20192020: 11 February 2020 to 25 November 20202021: 5 February 2021 to 31 December 20212022: 1 January 2022 to 30 November 20222023: 3 January 2023 to 9 November 20232024: 9 January 2024 to 31 December 20242025: 4 February 2025 to 29 December 20252026: 3 January 2026 to 15 October 20262000200420082012201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Calliham meeting 30 C (86 F).
First to last qualifying date each year at Calliham
YearFirst dateLast date
20002000-01-202000-11-03
20012001-02-072001-11-03
20022002-01-242002-10-13
20032003-04-172003-11-06
20042004-04-012004-11-01
20052005-02-162005-11-28
20062006-01-022006-11-11
20072007-03-282007-12-12
20082008-02-052008-12-27
20092009-02-112009-10-30
20102010-04-012010-11-26
20112011-02-182011-11-22
20122012-02-242012-12-20
20132013-03-052013-11-22
20142014-02-152014-10-31
20152015-03-302015-12-27
20162016-02-022016-11-19
20172017-01-222017-12-05
20182018-02-192018-10-15
20192019-02-162019-12-16
20202020-02-112020-11-25
20212021-02-052021-12-31
20222022-01-012022-11-30
20232023-01-032023-11-09
20242024-01-092024-12-31
20252025-02-042025-12-29
20262026-01-032026-10-15

Every Fixed Threshold

Fixed thresholds at Calliham
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days272402025192
35 C (95 F): Days27143201188
40 C (104 F): Days2150202312
45 C (113 F): Days1120061
90 F (32.2 C): Days271922025166
100 F (37.8 C): Days2598202349
110 F (43.3 C): Days3120001
0 C (32 F): Ice days (max2420214
0 C (32 F): Frost days (min2720202210
-10 C (14 F): Days with min1220212
20 C (68 F): Tropical nights (min271632009153
25 C (77 F): Days with min2737202336
10 mm (0.39 in): Days with 10 mm or more rain4632199713
25 mm (0.98 in): Days with 25 mm or more rain461520076
50 mm (1.97 in): Days with 50 mm or more rain40620023
100 mm (3.94 in): Days with 100 mm or more rain10220021
200 mm (7.87 in): Days with 200 mm or more rain3119801
10 cm (3.9 in): Days with 10 cm or more snowfall3119831

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2000.

Download the Data

  • Data for Calliham 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).