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Built 2026-10-17 (17 October 2026)

Box Canyon Threshold Days by Year

13 fixed thresholds counted per year at Box Canyon (USS0010D31S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Box Canyon Thresholds

  • Box Canyon: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1997 with 24.
  • Box Canyon: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2007 with 20.
  • Box Canyon: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 1996 with 84.
  • Box Canyon: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 1995 with 241.
  • 13 fixed thresholds have at least one qualifying day at Box Canyon.
37 years with a qualifying day
Days at or above 30 C (86 F) per year at Box Canyon Days per year at Box Canyon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 2007. 01020301990: 181991: 121992: 71993: 21994: 41995: 51996: 101997: 11998: 91999: 12000: 122001: 92002: 62003: 182004: 22005: 82006: 122007: 202008: 52009: 32010: 42011: 92012: 122013: 32014: 12015: 42016: 52017: 82018: 82019: 32020: 62021: 132022: 162023: 62024: 132025: 92026: 221990199419982002200620102014201820222026
Days per year at Box Canyon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 2007.
Days at or above 30 C (86 F) per year at Box Canyon
YearDaysDecade average
1990186.9
1991126.9
199276.9
199326.9
199446.9
199556.9
1996106.9
199716.9
199896.9
199916.9
2000129.5
200199.5
200269.5
2003189.5
200429.5
200589.5
2006129.5
2007209.5
200859.5
200939.5
201045.7
201195.7
2012125.7
201335.7
201415.7
201545.7
201655.7
201785.7
201885.7
201935.7
2020612.1
20211312.1
20221612.1
2023612.1
20241312.1
2025912.1
20262212.1
First to last qualifying date each year at Box Canyon For each year, a bar from the first to the last day at Box Canyon meeting 30 C (86 F). 1990: 24 June 1990 to 16 August 19901991: 24 June 1991 to 1 October 19911992: 27 April 1992 to 21 August 19921993: 1 July 1993 to 7 August 19931994: 9 July 1994 to 15 August 19941995: 8 July 1995 to 21 August 19951996: 3 July 1996 to 24 August 19961997: 22 July 1997 to 22 July 19971998: 16 July 1998 to 5 September 19981999: 28 July 1999 to 28 July 19992000: 13 July 2000 to 15 September 20002001: 1 July 2001 to 28 August 20012002: 26 June 2002 to 15 July 20022003: 12 July 2003 to 15 August 20032004: 14 July 2004 to 17 July 20042005: 8 July 2005 to 6 August 20052006: 15 July 2006 to 22 August 20062007: 28 June 2007 to 2 September 20072008: 4 July 2008 to 25 August 20082009: 23 July 2009 to 22 August 20092010: 29 June 2010 to 26 August 20102011: 3 July 2011 to 27 August 20112012: 24 June 2012 to 28 August 20122013: 2 July 2013 to 16 August 20132014: 23 July 2014 to 23 July 20142015: 27 June 2015 to 4 July 20152016: 21 July 2016 to 2 August 20162017: 5 July 2017 to 3 September 20172018: 6 July 2018 to 16 August 20182019: 23 July 2019 to 4 September 20192020: 22 July 2020 to 5 September 20202021: 14 June 2021 to 16 August 20212022: 12 July 2022 to 7 September 20222023: 22 July 2023 to 17 August 20232024: 10 July 2024 to 1 September 20242025: 19 June 2025 to 19 August 20252026: 11 July 2026 to 21 August 202619901995200020052010201520202025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Box Canyon meeting 30 C (86 F).
First to last qualifying date each year at Box Canyon
YearFirst dateLast date
19901990-06-241990-08-16
19911991-06-241991-10-01
19921992-04-271992-08-21
19931993-07-011993-08-07
19941994-07-091994-08-15
19951995-07-081995-08-21
19961996-07-031996-08-24
19971997-07-221997-07-22
19981998-07-161998-09-05
19991999-07-281999-07-28
20002000-07-132000-09-15
20012001-07-012001-08-28
20022002-06-262002-07-15
20032003-07-122003-08-15
20042004-07-142004-07-17
20052005-07-082005-08-06
20062006-07-152006-08-22
20072007-06-282007-09-02
20082008-07-042008-08-25
20092009-07-232009-08-22
20102010-06-292010-08-26
20112011-07-032011-08-27
20122012-06-242012-08-28
20132013-07-022013-08-16
20142014-07-232014-07-23
20152015-06-272015-07-04
20162016-07-212016-08-02
20172017-07-052017-09-03
20182018-07-062018-08-16
20192019-07-232019-09-04
20202020-07-222020-09-05
20212021-06-142021-08-16
20222022-07-122022-09-07
20232023-07-222023-08-17
20242024-07-102024-09-01
20252025-06-192025-08-19
20262026-07-112026-08-21

Every Fixed Threshold

Fixed thresholds at Box Canyon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3720200722
35 C (95 F): Days4419921
40 C (104 F): Days2119901
90 F (32.2 C): Days19919903
100 F (37.8 C): Days3219912
0 C (32 F): Ice days (max3784199613
0 C (32 F): Frost days (min342411995103
-10 C (14 F): Days with min3483199712
-20 C (-4 F): Days with min322319961
-30 C (-22 F): Days with min10420222
10 mm (0.39 in): Days with 10 mm or more rain4824199712
25 mm (0.98 in): Days with 25 mm or more rain31520221
50 mm (1.97 in): Days with 50 mm or more rain1120221

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 Box Canyon 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-15).