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Built 2026-10-19 (19 October 2026)

Selinsgrove Penn Valley AP Threshold Days by Year (USW00014770)

14 fixed thresholds counted per year at Selinsgrove Penn Valley AP (USW00014770): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Selinsgrove Penn Valley AP Thresholds

  • Selinsgrove Penn Valley AP: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 2010 with 71.
  • Selinsgrove Penn Valley AP: days with a maximum temperature at or above 90 F (32.2 C) in 28 years, most in 2010 with 35.
  • Selinsgrove Penn Valley AP: days with a maximum temperature at or below 0 C (32 F) in 28 years, most in 2003 with 42.
  • Selinsgrove Penn Valley AP: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 2001 with 142.
  • 14 fixed thresholds have at least one qualifying day at Selinsgrove Penn Valley AP.
28 years with a qualifying day
Days at or above 30 C (86 F) per year at Selinsgrove Penn Valley AP Days per year at Selinsgrove Penn Valley AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 2010. 0204060801998: 311999: 412000: 202001: 312002: 592003: 162004: 202005: 592006: 312007: 542008: 402009: 282010: 712011: 372012: 482013: 372014: 282015: 442016: 692017: 332018: 402019: 342020: 492021: 422022: 552023: 292024: 452025: 361998200120042007201020132016201920222025
Days per year at Selinsgrove Penn Valley AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 2010.
Days at or above 30 C (86 F) per year at Selinsgrove Penn Valley AP
YearDaysDecade average
19983136
19994136
20002035.8
20013135.8
20025935.8
20031635.8
20042035.8
20055935.8
20063135.8
20075435.8
20084035.8
20092835.8
20107144.1
20113744.1
20124844.1
20133744.1
20142844.1
20154444.1
20166944.1
20173344.1
20184044.1
20193444.1
20204942.7
20214242.7
20225542.7
20232942.7
20244542.7
20253642.7
First to last qualifying date each year at Selinsgrove Penn Valley AP For each year, a bar from the first to the last day at Selinsgrove Penn Valley AP meeting 30 C (86 F). 1998: 30 March 1998 to 27 September 19981999: 29 May 1999 to 17 August 19992000: 5 May 2000 to 3 September 20002001: 23 April 2001 to 28 August 20012002: 16 April 2002 to 14 September 20022003: 23 June 2003 to 25 August 20032004: 19 April 2004 to 29 August 20042005: 11 May 2005 to 23 September 20052006: 29 May 2006 to 20 August 20062007: 15 May 2007 to 9 October 20072008: 19 April 2008 to 14 September 20082009: 25 April 2009 to 26 August 20092010: 5 April 2010 to 24 September 20102011: 26 May 2011 to 20 August 20112012: 16 April 2012 to 7 September 20122013: 21 May 2013 to 11 September 20132014: 13 May 2014 to 6 September 20142015: 18 May 2015 to 9 September 20152016: 25 May 2016 to 23 September 20162017: 17 May 2017 to 27 September 20172018: 2 May 2018 to 6 September 20182019: 26 June 2019 to 2 October 20192020: 26 May 2020 to 10 September 20202021: 20 May 2021 to 27 August 20212022: 21 May 2022 to 4 September 20222023: 13 April 2023 to 9 September 20232024: 29 April 2024 to 1 September 20242025: 19 April 2025 to 28 September 20251998200220062010201420182022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Selinsgrove Penn Valley AP meeting 30 C (86 F).
First to last qualifying date each year at Selinsgrove Penn Valley AP
YearFirst dateLast date
19981998-03-301998-09-27
19991999-05-291999-08-17
20002000-05-052000-09-03
20012001-04-232001-08-28
20022002-04-162002-09-14
20032003-06-232003-08-25
20042004-04-192004-08-29
20052005-05-112005-09-23
20062006-05-292006-08-20
20072007-05-152007-10-09
20082008-04-192008-09-14
20092009-04-252009-08-26
20102010-04-052010-09-24
20112011-05-262011-08-20
20122012-04-162012-09-07
20132013-05-212013-09-11
20142014-05-132014-09-06
20152015-05-182015-09-09
20162016-05-252016-09-23
20172017-05-172017-09-27
20182018-05-022018-09-06
20192019-06-262019-10-02
20202020-05-262020-09-10
20212021-05-202021-08-27
20222022-05-212022-09-04
20232023-04-132023-09-09
20242024-04-292024-09-01
20252025-04-192025-09-28

Every Fixed Threshold

Fixed thresholds at Selinsgrove Penn Valley AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2871201036
35 C (95 F): Days20820022
40 C (104 F): Days1120101
90 F (32.2 C): Days283520109
100 F (37.8 C): Days3420101
0 C (32 F): Ice days (max2842200330
0 C (32 F): Frost days (min281422001137
-10 C (14 F): Days with min2839201518
-20 C (-4 F): Days with min12320003
20 C (68 F): Tropical nights (min2827201825
10 mm (0.39 in): Days with 10 mm or more rain2753201122
25 mm (0.98 in): Days with 25 mm or more rain271820118
50 mm (1.97 in): Days with 50 mm or more rain20520111
100 mm (3.94 in): Days with 100 mm or more rain2120041

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1998.

Download the Data

  • Data for Selinsgrove Penn Valley AP 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 (2025-12-31).