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Built 2026-10-17 (17 October 2026)

Port Allegany Threshold Days by Year

15 fixed thresholds counted per year at Port Allegany (USC00367103): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Allegany Thresholds

  • Port Allegany: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1990 with 52.
  • Port Allegany: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 2003 with 15.
  • Port Allegany: days with 10 cm (3.9 in) or more of snowfall in 49 years, most in 1994 with 7.
  • Port Allegany: days with 50 mm (1.97 in) or more of precipitation in 35 years, most in 1994 with 4.
  • 15 fixed thresholds have at least one qualifying day at Port Allegany.
21 years with a qualifying day
Days at or above 30 C (86 F) per year at Port Allegany Days per year at Port Allegany with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 2012. 01020302006: 112007: 182008: 102009: 62010: 212011: 182012: 222013: 122014: 42015: 112016: 162017: 52018: 162019: 62020: 182021: 112022: 152023: 92024: 162025: 202026: 122006200920122015201820212024
Days per year at Port Allegany with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 2012.
Days at or above 30 C (86 F) per year at Port Allegany
YearDaysDecade average
20061111.3
20071811.3
20081011.3
2009611.3
20102113.1
20111813.1
20122213.1
20131213.1
2014413.1
20151113.1
20161613.1
2017513.1
20181613.1
2019613.1
20201814.4
20211114.4
20221514.4
2023914.4
20241614.4
20252014.4
20261214.4
First to last qualifying date each year at Port Allegany For each year, a bar from the first to the last day at Port Allegany meeting 30 C (86 F). 2006: 29 May 2006 to 2 August 20062007: 31 May 2007 to 25 September 20072008: 7 June 2008 to 6 September 20082009: 28 April 2009 to 18 August 20092010: 24 June 2010 to 25 September 20102011: 31 May 2011 to 4 September 20112012: 21 May 2012 to 1 September 20122013: 22 May 2013 to 12 September 20132014: 14 May 2014 to 6 September 20142015: 11 May 2015 to 9 September 20152016: 7 July 2016 to 9 September 20162017: 14 June 2017 to 27 September 20172018: 29 May 2018 to 6 September 20182019: 5 July 2019 to 22 July 20192020: 27 May 2020 to 23 August 20202021: 21 May 2021 to 29 August 20212022: 22 May 2022 to 30 August 20222023: 17 April 2023 to 7 September 20232024: 21 May 2024 to 28 August 20242025: 23 June 2025 to 17 August 20252026: 19 May 2026 to 2 September 20262006200920122015201820212024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Port Allegany meeting 30 C (86 F).
First to last qualifying date each year at Port Allegany
YearFirst dateLast date
20062006-05-292006-08-02
20072007-05-312007-09-25
20082008-06-072008-09-06
20092009-04-282009-08-18
20102010-06-242010-09-25
20112011-05-312011-09-04
20122012-05-212012-09-01
20132013-05-222013-09-12
20142014-05-142014-09-06
20152015-05-112015-09-09
20162016-07-072016-09-09
20172017-06-142017-09-27
20182018-05-292018-09-06
20192019-07-052019-07-22
20202020-05-272020-08-23
20212021-05-212021-08-29
20222022-05-222022-08-30
20232023-04-172023-09-07
20242024-05-212024-08-28
20252025-06-232025-08-17
20262026-05-192026-09-02

Every Fixed Threshold

Fixed thresholds at Port Allegany
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2122201212
35 C (95 F): Days1220112
90 F (32.2 C): Days13720254
0 C (32 F): Ice days (max2171201436
0 C (32 F): Frost days (min211762020102
-10 C (14 F): Days with min2166201431
-20 C (-4 F): Days with min1825201513
-30 C (-22 F): Days with min1320153
20 C (68 F): Tropical nights (min10320062
10 mm (0.39 in): Days with 10 mm or more rain5952199033
25 mm (0.98 in): Days with 25 mm or more rain591520039
50 mm (1.97 in): Days with 50 mm or more rain35419941
100 mm (3.94 in): Days with 100 mm or more rain2119941
10 cm (3.9 in): Days with 10 cm or more snowfall49719941
25 cm (9.8 in): Days with 25 cm or more snowfall11319781

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2006.

Download the Data

  • Data for Port Allegany 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 (2026-10-12).