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Built 2026-10-19 (19 October 2026)

McKeesport Threshold Days by Year (USC00365573)

16 fixed thresholds counted per year at McKeesport (USC00365573): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for McKeesport Thresholds

  • McKeesport: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 1948 with 51.
  • McKeesport: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 1945 with 15.
  • McKeesport: days with 50 mm (1.97 in) or more of precipitation in 35 years, most in 2015 with 4.
  • McKeesport: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1991 with 64.
  • 16 fixed thresholds have at least one qualifying day at McKeesport.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at McKeesport Days per year at McKeesport with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 1991. 0204060801988: 501989: 221991: 641992: 131993: 461994: 371995: 431996: 271997: 251998: 381999: 512000: 212001: 332005: 622006: 322007: 562008: 292009: 172010: 632011: 472012: 622013: 332014: 192015: 422016: 602017: 372019: 48198819921995199820012007201020132016
Days per year at McKeesport with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 1991.
Days at or above 30 C (86 F) per year at McKeesport
YearDaysDecade average
19885036
19892236
19916438.2
19921338.2
19934638.2
19943738.2
19954338.2
19962738.2
19972538.2
19983838.2
19995138.2
20002135.7
20013335.7
20056235.7
20063235.7
20075635.7
20082935.7
20091735.7
20106345.7
20114745.7
20126245.7
20133345.7
20141945.7
20154245.7
20166045.7
20173745.7
20194845.7
First to last qualifying date each year at McKeesport For each year, a bar from the first to the last day at McKeesport meeting 30 C (86 F). 1988: 29 May 1988 to 27 August 19881989: 31 May 1989 to 9 September 19891991: 12 May 1991 to 18 September 19911992: 17 May 1992 to 16 September 19921993: 9 May 1993 to 14 September 19931994: 23 May 1994 to 26 August 19941995: 7 June 1995 to 7 September 19951996: 10 May 1996 to 23 August 19961997: 20 June 1997 to 2 September 19971998: 16 May 1998 to 27 September 19981999: 29 May 1999 to 12 September 19992000: 6 May 2000 to 10 September 20002001: 3 May 2001 to 9 September 20012005: 11 May 2005 to 25 September 20052006: 29 May 2006 to 26 August 20062007: 1 May 2007 to 8 October 20072008: 5 June 2008 to 14 September 20082009: 25 April 2009 to 20 August 20092010: 4 April 2010 to 25 September 20102011: 28 April 2011 to 4 September 20112012: 4 May 2012 to 6 September 20122013: 16 May 2013 to 12 September 20132014: 14 May 2014 to 7 September 20142015: 9 May 2015 to 11 September 20152016: 28 May 2016 to 24 September 20162017: 1 May 2017 to 29 September 20172019: 1 May 2019 to 3 October 20191988199319972001200820122016JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at McKeesport meeting 30 C (86 F).
First to last qualifying date each year at McKeesport
YearFirst dateLast date
19881988-05-291988-08-27
19891989-05-311989-09-09
19911991-05-121991-09-18
19921992-05-171992-09-16
19931993-05-091993-09-14
19941994-05-231994-08-26
19951995-06-071995-09-07
19961996-05-101996-08-23
19971997-06-201997-09-02
19981998-05-161998-09-27
19991999-05-291999-09-12
20002000-05-062000-09-10
20012001-05-032001-09-09
20052005-05-112005-09-25
20062006-05-292006-08-26
20072007-05-012007-10-08
20082008-06-052008-09-14
20092009-04-252009-08-20
20102010-04-042010-09-25
20112011-04-282011-09-04
20122012-05-042012-09-06
20132013-05-162013-09-12
20142014-05-142014-09-07
20152015-05-092015-09-11
20162016-05-282016-09-24
20172017-05-012017-09-29
20192019-05-012019-10-03

Every Fixed Threshold

Fixed thresholds at McKeesport
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2764199148
35 C (95 F): Days11819881
90 F (32.2 C): Days2633198813
100 F (37.8 C): Days3119881
0 C (32 F): Ice days (max2750201016
0 C (32 F): Frost days (min241382014108
-10 C (14 F): Days with min2436201414
-20 C (-4 F): Days with min9720151
20 C (68 F): Tropical nights (min2428201611
10 mm (0.39 in): Days with 10 mm or more rain7751194840
25 mm (0.98 in): Days with 25 mm or more rain761519459
50 mm (1.97 in): Days with 50 mm or more rain35420152
100 mm (3.94 in): Days with 100 mm or more rain2120151
10 cm (3.9 in): Days with 10 cm or more snowfall11419501
25 cm (9.8 in): Days with 25 cm or more snowfall4119501
50 cm (19.7 in): Days with 50 cm or more snowfall2119501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

  • Data for McKeesport 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).