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Built 2026-10-19 (19 October 2026)

Calion L&D Threshold Days by Year (USC00031140)

15 fixed thresholds counted per year at Calion L&D (USC00031140): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Calion L&D Thresholds

  • Calion L&D: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 2018 with 59.
  • Calion L&D: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 2020 with 27.
  • Calion L&D: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 2001 with 10.
  • Calion L&D: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 2010 with 142.
  • 15 fixed thresholds have at least one qualifying day at Calion L&D.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Calion L&D Days per year at Calion L&D with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 142 in 2010. 0501001501986: 1241988: 1161989: 1051991: 1151992: 931993: 1151994: 1211995: 1301996: 1061998: 1311999: 1222000: 1102001: 972002: 972003: 912004: 752005: 1132006: 1242008: 852009: 872010: 1422011: 1252012: 1162013: 1072014: 1082015: 1172017: 1072018: 1422019: 1332020: 1052021: 1102022: 1232023: 1222024: 1212025: 1362026: 130198619921996200120052010201420192023
Days per year at Calion L&D with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 142 in 2010.
Days at or above 30 C (86 F) per year at Calion L&D
YearDaysDecade average
1986124115
1988116115
1989105115
1991115116.6
199293116.6
1993115116.6
1994121116.6
1995130116.6
1996106116.6
1998131116.6
1999122116.6
200011097.7
20019797.7
20029797.7
20039197.7
20047597.7
200511397.7
200612497.7
20088597.7
20098797.7
2010142121.9
2011125121.9
2012116121.9
2013107121.9
2014108121.9
2015117121.9
2017107121.9
2018142121.9
2019133121.9
2020105121
2021110121
2022123121
2023122121
2024121121
2025136121
2026130121
First to last qualifying date each year at Calion L&D For each year, a bar from the first to the last day at Calion L&D meeting 30 C (86 F). 1986: 27 February 1986 to 5 October 19861988: 5 April 1988 to 30 September 19881989: 4 April 1989 to 13 October 19891991: 13 May 1991 to 13 October 19911992: 15 April 1992 to 27 October 19921993: 6 May 1993 to 8 October 19931994: 11 April 1994 to 8 October 19941995: 23 March 1995 to 18 October 19951996: 20 April 1996 to 28 October 19961998: 9 May 1998 to 6 October 19981999: 10 April 1999 to 16 October 19992000: 12 May 2000 to 6 October 20002001: 7 May 2001 to 23 September 20012002: 19 April 2002 to 7 October 20022003: 3 May 2003 to 25 October 20032004: 21 March 2004 to 21 October 20042005: 11 May 2005 to 29 September 20052006: 13 March 2006 to 19 October 20062008: 5 April 2008 to 9 September 20082009: 23 April 2009 to 9 October 20092010: 2 May 2010 to 28 October 20102011: 27 March 2011 to 18 October 20112012: 2 April 2012 to 29 September 20122013: 16 April 2013 to 29 September 20132014: 27 April 2014 to 11 October 20142015: 26 April 2015 to 16 October 20152017: 21 March 2017 to 11 October 20172018: 7 May 2018 to 9 October 20182019: 11 April 2019 to 20 October 20192020: 27 March 2020 to 22 October 20202021: 13 April 2021 to 16 October 20212022: 25 April 2022 to 16 October 20222023: 5 April 2023 to 26 October 20232024: 8 May 2024 to 30 October 20242025: 14 March 2025 to 18 October 20252026: 21 March 2026 to 15 October 202619861993199920042010201520212026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Calion L&D meeting 30 C (86 F).
First to last qualifying date each year at Calion L&D
YearFirst dateLast date
19861986-02-271986-10-05
19881988-04-051988-09-30
19891989-04-041989-10-13
19911991-05-131991-10-13
19921992-04-151992-10-27
19931993-05-061993-10-08
19941994-04-111994-10-08
19951995-03-231995-10-18
19961996-04-201996-10-28
19981998-05-091998-10-06
19991999-04-101999-10-16
20002000-05-122000-10-06
20012001-05-072001-09-23
20022002-04-192002-10-07
20032003-05-032003-10-25
20042004-03-212004-10-21
20052005-05-112005-09-29
20062006-03-132006-10-19
20082008-04-052008-09-09
20092009-04-232009-10-09
20102010-05-022010-10-28
20112011-03-272011-10-18
20122012-04-022012-09-29
20132013-04-162013-09-29
20142014-04-272014-10-11
20152015-04-262015-10-16
20172017-03-212017-10-11
20182018-05-072018-10-09
20192019-04-112019-10-20
20202020-03-272020-10-22
20212021-04-132021-10-16
20222022-04-252022-10-16
20232023-04-052023-10-26
20242024-05-082024-10-30
20252025-03-142025-10-18
20262026-03-212026-10-15

Every Fixed Threshold

Fixed thresholds at Calion L&D
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days361422010130
35 C (95 F): Days3666199863
40 C (104 F): Days7720008
90 F (32.2 C): Days361092010106
100 F (37.8 C): Days2224201122
0 C (32 F): Ice days (max241119892
0 C (32 F): Frost days (min3483201032
-10 C (14 F): Days with min13720182
20 C (68 F): Tropical nights (min341201998107
25 C (77 F): Days with min221819984
10 mm (0.39 in): Days with 10 mm or more rain3959201814
25 mm (0.98 in): Days with 25 mm or more rain392720204
50 mm (1.97 in): Days with 50 mm or more rain371020012
100 mm (3.94 in): Days with 100 mm or more rain14220181
10 cm (3.9 in): Days with 10 cm or more snowfall2220212

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1986.

Download the Data

  • Data for Calion L&D 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).