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Built 2026-10-19 (19 October 2026)

West Branch Threshold Days by Year (USS0016D08S)

13 fixed thresholds counted per year at West Branch (USS0016D08S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for West Branch Thresholds

  • West Branch: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1995 with 63.
  • West Branch: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1995 with 16.
  • West Branch: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 2022 with 69.
  • West Branch: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2007 with 38.
  • 13 fixed thresholds have at least one qualifying day at West Branch.
37 years with a qualifying day
Days at or above 30 C (86 F) per year at West Branch Days per year at West Branch with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 2007. 0102030401989: 141990: 231991: 201992: 171994: 271995: 41996: 221997: 61998: 291999: 132000: 222001: 222002: 172003: 292004: 202005: 202006: 302007: 382008: 162009: 202010: 122011: 172012: 332013: 372014: 262015: 202016: 132017: 262018: 212019: 132020: 152021: 332022: 282023: 132024: 202025: 102026: 111989199419982002200620102014201820222026
Days per year at West Branch with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 2007.
Days at or above 30 C (86 F) per year at West Branch
YearDaysDecade average
19891414
19902317.9
19912017.9
19921717.9
19942717.9
1995417.9
19962217.9
1997617.9
19982917.9
19991317.9
20002223.4
20012223.4
20021723.4
20032923.4
20042023.4
20052023.4
20063023.4
20073823.4
20081623.4
20092023.4
20101221.8
20111721.8
20123321.8
20133721.8
20142621.8
20152021.8
20161321.8
20172621.8
20182121.8
20191321.8
20201518.6
20213318.6
20222818.6
20231318.6
20242018.6
20251018.6
20261118.6
First to last qualifying date each year at West Branch For each year, a bar from the first to the last day at West Branch meeting 30 C (86 F). 1989: 7 July 1989 to 7 August 19891990: 24 June 1990 to 6 September 19901991: 3 July 1991 to 31 August 19911992: 22 June 1992 to 19 August 19921994: 20 June 1994 to 24 September 19941995: 28 July 1995 to 2 September 19951996: 2 July 1996 to 11 September 19961997: 21 July 1997 to 9 September 19971998: 9 July 1998 to 4 September 19981999: 6 July 1999 to 27 August 19992000: 12 July 2000 to 23 August 20002001: 24 May 2001 to 23 September 20012002: 25 June 2002 to 14 August 20022003: 18 June 2003 to 3 September 20032004: 23 June 2004 to 15 August 20042005: 12 July 2005 to 8 September 20052006: 26 June 2006 to 5 September 20062007: 3 June 2007 to 3 September 20072008: 28 June 2008 to 24 August 20082009: 2 July 2009 to 25 September 20092010: 9 July 2010 to 2 October 20102011: 24 July 2011 to 24 September 20112012: 7 July 2012 to 20 August 20122013: 28 June 2013 to 31 August 20132014: 2 July 2014 to 18 August 20142015: 8 June 2015 to 26 August 20152016: 6 June 2016 to 17 August 20162017: 5 July 2017 to 6 September 20172018: 5 July 2018 to 16 August 20182019: 22 July 2019 to 5 September 20192020: 21 July 2020 to 6 September 20202021: 2 June 2021 to 16 August 20212022: 27 June 2022 to 7 September 20222023: 9 July 2023 to 17 August 20232024: 8 July 2024 to 17 August 20242025: 1 July 2025 to 3 September 20252026: 16 July 2026 to 21 August 202619891995200020052010201520202025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at West Branch meeting 30 C (86 F).
First to last qualifying date each year at West Branch
YearFirst dateLast date
19891989-07-071989-08-07
19901990-06-241990-09-06
19911991-07-031991-08-31
19921992-06-221992-08-19
19941994-06-201994-09-24
19951995-07-281995-09-02
19961996-07-021996-09-11
19971997-07-211997-09-09
19981998-07-091998-09-04
19991999-07-061999-08-27
20002000-07-122000-08-23
20012001-05-242001-09-23
20022002-06-252002-08-14
20032003-06-182003-09-03
20042004-06-232004-08-15
20052005-07-122005-09-08
20062006-06-262006-09-05
20072007-06-032007-09-03
20082008-06-282008-08-24
20092009-07-022009-09-25
20102010-07-092010-10-02
20112011-07-242011-09-24
20122012-07-072012-08-20
20132013-06-282013-08-31
20142014-07-022014-08-18
20152015-06-082015-08-26
20162016-06-062016-08-17
20172017-07-052017-09-06
20182018-07-052018-08-16
20192019-07-222019-09-05
20202020-07-212020-09-06
20212021-06-022021-08-16
20222022-06-272022-09-07
20232023-07-092023-08-17
20242024-07-082024-08-17
20252025-07-012025-09-03
20262026-07-162026-08-21

Every Fixed Threshold

Fixed thresholds at West Branch
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3738200711
35 C (95 F): Days17520031
90 F (32.2 C): Days331820072
100 F (37.8 C): Days2120021
0 C (32 F): Ice days (max3869202221
0 C (32 F): Frost days (min352152009102
-10 C (14 F): Days with min3552201311
-20 C (-4 F): Days with min16719902
-30 C (-22 F): Days with min1219902
20 C (68 F): Tropical nights (min2119901
10 mm (0.39 in): Days with 10 mm or more rain4463199523
25 mm (0.98 in): Days with 25 mm or more rain441619956
50 mm (1.97 in): Days with 50 mm or more rain8419961

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1989.

Download the Data

  • Data for West Branch 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).