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McKeesport Weather Records (USC00365573)

Record envelope, standing records and threshold days for McKeesport (USC00365573), Pennsylvania, United States, with 93 years of record.

Key Facts for McKeesport

  • McKeesport (USC00365573) is a weather station in Pennsylvania, United States at 40.34 latitude and -79.86 longitude, 226 m (740 ft) above sea level.
  • The station reports from 1928 to 2020, 93 years of record.
  • 1,464 records set at McKeesport still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • McKeesport set a daily record precipitation of 39.9 mm (1.6 in) on 27 April 2020.

About the Station

  • Location: Pennsylvania, United States, 40.34 latitude, -79.86 longitude.
  • Elevation: 226 m (740 ft).
  • Period of record: 1928 to 2020, 93 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at McKeesport, with 2026 drawn through them The band shows the record high and record low for each calendar day at McKeesport. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at McKeesport. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at McKeesport, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.3 C (73.9 F)-28.3 C (-18.9 F)n/an/a
Feb25.0 C (77.0 F)-28.3 C (-18.9 F)n/an/a
Mar28.9 C (84.0 F)-18.3 C (-0.9 F)n/an/a
Apr32.2 C (90.0 F)-8.3 C (17.1 F)n/an/a
May33.3 C (91.9 F)-6.1 C (21.0 F)n/an/a
Jun37.2 C (99.0 F)0.6 C (33.1 F)n/an/a
Jul38.3 C (100.9 F)3.9 C (39.0 F)n/an/a
Aug36.1 C (97.0 F)4.4 C (39.9 F)n/an/a
Sep35.0 C (95.0 F)-6.1 C (21.0 F)n/an/a
Oct32.8 C (91.0 F)-5.6 C (21.9 F)n/an/a
Nov26.1 C (79.0 F)-11.7 C (10.9 F)n/an/a
Dec23.3 C (73.9 F)-21.7 C (-7.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at McKeesport by the year they were set 1,464 records at McKeesport still stand. 2007 holds the most, with 76. 0204060801964: 11966: 21967: 11969: 111971: 121975: 101978: 21987: 71988: 651989: 431990: 431991: 691992: 381993: 481994: 361995: 371996: 531997: 351998: 481999: 452000: 452001: 512002: 512003: 172004: 292005: 412006: 522007: 762008: 472009: 312010: 432011: 342012: 442013: 312014: 582015: 572016: 432017: 532018: 222019: 262020: 7196419751990199520002005201020152020
1,464 records at McKeesport still stand. 2007 holds the most, with 76.
Standing records at McKeesport by the year they were set
Year setStanding records
19641
19662
19671
196911
197112
197510
19782
19877
198865
198943
199043
199169
199238
199348
199436
199537
199653
199735
199848
199945
200045
200151
200251
200317
200429
200541
200652
200776
200847
200931
201043
201134
201244
201331
201458
201557
201643
201753
201822
201926
20207

All-Time Record Progression

7 new records
When McKeesport set new all-time records 7 all-time records were set at McKeesport between 23 June 1972 and 16 February 2010. Each dot is a new record. Record daily precipitationRecord snow depth23 June 1972: Record daily precipitation 101.9 mm (4.0 in)13 March 1993: Record snow depth 43.2 cm (17.0 in)5 February 2010: Record snow depth 50.8 cm (20.0 in)9 February 2010: Record snow depth 55.9 cm (22.0 in)10 February 2010: Record snow depth 58.4 cm (23.0 in)11 February 2010: Record snow depth 61.0 cm (24.0 in)16 February 2010: Record snow depth 66.0 cm (26.0 in)19751980198519901995200020052010
7 all-time records were set at McKeesport between 23 June 1972 and 16 February 2010. Each dot is a new record.
When McKeesport set new all-time records
DateKindDetail
1972-06-23Record daily precipitationRecord daily precipitation 101.9 mm (4.0 in)
1993-03-13Record snow depthRecord snow depth 43.2 cm (17.0 in)
2010-02-05Record snow depthRecord snow depth 50.8 cm (20.0 in)
2010-02-09Record snow depthRecord snow depth 55.9 cm (22.0 in)
2010-02-10Record snow depthRecord snow depth 58.4 cm (23.0 in)
2010-02-11Record snow depthRecord snow depth 61.0 cm (24.0 in)
2010-02-16Record snow depthRecord snow depth 66.0 cm (26.0 in)

Wettest Day of Each Month

Jun: 101.9 mm (4.0 in)
Record daily precipitation for each month at McKeesport The wettest day on record for each calendar month at McKeesport. The most was 101.9 mm (4.0 in) on 23 June 1972. 050100150 Jan: 47.8 mm (1.9 in), 5 January 2005 Jan Feb: 52.3 mm (2.1 in), 23 February 1935 Feb Mar: 56.6 mm (2.2 in), 22 March 1945 Mar Apr: 76.2 mm (3.0 in), 20 April 2015 Apr May: 71.1 mm (2.8 in), 6 May 1971 May Jun: 101.9 mm (4.0 in), 23 June 1972 Jun Jul: 77.0 mm (3.0 in), 20 July 1988 Jul Aug: 66.5 mm (2.6 in), 23 August 1970 Aug Sep: 98.6 mm (3.9 in), 10 September 2018 Sep Oct: 69.3 mm (2.7 in), 30 October 2012 Oct Nov: 50.8 mm (2.0 in), 25 November 1950 Nov Dec: 54.6 mm (2.1 in), 30 December 1942 Dec
The wettest day on record for each calendar month at McKeesport. The most was 101.9 mm (4.0 in) on 23 June 1972.
Record daily precipitation for each month at McKeesport
MonthRecord daily precipitation (mm)Date
Jan47.8 mm (1.9 in)5 January 2005
Feb52.3 mm (2.1 in)23 February 1935
Mar56.6 mm (2.2 in)22 March 1945
Apr76.2 mm (3.0 in)20 April 2015
May71.1 mm (2.8 in)6 May 1971
Jun101.9 mm (4.0 in)23 June 1972
Jul77.0 mm (3.0 in)20 July 1988
Aug66.5 mm (2.6 in)23 August 1970
Sep98.6 mm (3.9 in)10 September 2018
Oct69.3 mm (2.7 in)30 October 2012
Nov50.8 mm (2.0 in)25 November 1950
Dec54.6 mm (2.1 in)30 December 1942

Period of Record Coverage

1959 to 2020
Days with data per year at McKeesport 44 years of record at McKeesport, 1959 to 2020. 17 years have data for under 90 percent of days and are left out of rankings: 1959, 1964, 1966, 1967, 1968, 1969, 1971, 1972 and others. 1959: 1 of 365 days1964: 27 of 366 days1966: 61 of 365 days1967: 48 of 365 days1968: 28 of 366 days1969: 34 of 365 days1971: 46 of 365 days1972: 30 of 366 days1975: 53 of 365 days1978: 29 of 365 days1987: 61 of 365 days1988: 358 of 366 days1989: 331 of 365 days1990: 322 of 365 days1991: 360 of 365 days1992: 332 of 366 days1993: 362 of 365 days1994: 364 of 365 days1995: 354 of 365 days1996: 364 of 366 days1997: 359 of 365 days1998: 359 of 365 days1999: 363 of 365 days2000: 364 of 366 days2001: 358 of 365 days2002: 328 of 365 days2003: 260 of 365 days2004: 214 of 366 days2005: 360 of 365 days2006: 361 of 365 days2007: 363 of 365 days2008: 362 of 366 days2009: 355 of 365 days2010: 365 of 365 days2011: 361 of 365 days2012: 366 of 366 days2013: 363 of 365 days2014: 361 of 365 days2015: 353 of 365 days2016: 362 of 366 days2017: 362 of 365 days2018: 241 of 365 days2019: 333 of 365 days2020: 121 of 366 days1990200020102020
44 years of record at McKeesport, 1959 to 2020. 17 years have data for under 90 percent of days and are left out of rankings: 1959, 1964, 1966, 1967, 1968, 1969, 1971, 1972 and others.
Days with data per year at McKeesport
YearDays with dataShare of yearComplete
195910%No
1964277%No
19666117%No
19674813%No
1968288%No
1969349%No
19714613%No
1972308%No
19755315%No
1978298%No
19876117%No
198835898%Yes
198933191%Yes
199032288%No
199136099%Yes
199233291%Yes
199336299%Yes
1994364100%Yes
199535497%Yes
199636499%Yes
199735998%Yes
199835998%Yes
199936399%Yes
200036499%Yes
200135898%Yes
200232890%No
200326071%No
200421458%No
200536099%Yes
200636199%Yes
200736399%Yes
200836299%Yes
200935597%Yes
2010365100%Yes
201136199%Yes
2012366100%Yes
201336399%Yes
201436199%Yes
201535397%Yes
201636299%Yes
201736299%Yes
201824166%No
201933391%Yes
202012133%No

Latest Records

20
Latest records at McKeesport
DateStationRecordValueBeat old record byOld record stoodSignificance
27 April 2020McKeesport, USdaily rain39.9 mm (1.6 in)18.8 mm (0.7 in)12 years33 of 100 (Routine)
27 April 2020McKeesport, USdaily low max11.1 C (52.0 F)1.1 C (2.0 F)24 years14 of 100 (Routine)
24 April 2020McKeesport, USdaily low min (Tie)-1.1 C (30.0 F)tie17 years2 of 100 (Routine)
16 April 2020McKeesport, USdaily low min-2.8 C (27.0 F)0.6 C (1.1 F)6 years8 of 100 (Routine)
11 April 2020McKeesport, USdaily low max6.7 C (44.1 F)0.5 C (0.9 F)31 years15 of 100 (Routine)
30 March 2020McKeesport, USdaily high min12.2 C (54.0 F)1.1 C (2.0 F)22 years14 of 100 (Routine)
29 March 2020McKeesport, USdaily rain32.5 mm (1.3 in)10.1 mm (0.4 in)31 years30 of 100 (Routine)
27 January 2020McKeesport, USdaily high min (Tie)0.0 C (32.0 F)tie12 years2 of 100 (Routine)
26 January 2020McKeesport, USdaily high min (Tie)0.6 C (33.1 F)tie30 years3 of 100 (Routine)
16 January 2020McKeesport, USdaily high max13.9 C (57.0 F)0.6 C (1.1 F)28 years14 of 100 (Routine)
12 January 2020McKeesport, USdaily high max22.8 C (73.0 F)3.9 C (7.0 F)2 years11 of 100 (Routine)
11 January 2020McKeesport, USdaily high min5.0 C (41.0 F)1.1 C (2.0 F)12 years10 of 100 (Routine)
13 November 2019McKeesport, USdaily low min-10.0 C (14.0 F)6.1 C (11.0 F)21 years25 of 100 (Routine)
13 November 2019McKeesport, USdaily low max-2.2 C (28.0 F)3.3 C (5.9 F)22 years17 of 100 (Routine)
12 November 2019McKeesport, USdaily low max-0.6 C (30.9 F)1.7 C (3.1 F)22 years14 of 100 (Routine)
12 November 2019McKeesport, USdaily low min-9.4 C (15.1 F)1.1 C (2.0 F)1 year8 of 100 (Routine)
1 November 2019McKeesport, USdaily low min-2.2 C (28.0 F)1.1 C (2.0 F)16 years13 of 100 (Routine)
7 October 2019McKeesport, USdaily rain17.3 mm (0.7 in)0.8 mm (0.03 in)0 years9 of 100 (Routine)
6 October 2019McKeesport, USdaily rain38.1 mm (1.5 in)15.5 mm (0.6 in)86 years53 of 100 (Notable)
3 October 2019McKeesport, USdaily high max32.2 C (90.0 F)4.4 C (7.9 F)24 years20 of 100 (Routine)

Climate Trend

19 complete years, 1988 to 2013
Annual mean temperature at McKeesport as warming stripes, 1988 to 2013 One stripe for each of 19 complete years at McKeesport, 1988 to 2013. Blue stripes are years cooler than the station's own mean of 11.0 C (51.7 F); red stripes are warmer. The coolest year was 1996, at 10.1 C (50.2 F), and the warmest was 2012, at 12.3 C (54.2 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1988: 10.2 C, -0.8 C from the station mean1991: 12.0 C, +1.1 C from the station mean1993: 10.7 C, -0.3 C from the station mean1994: 10.4 C, -0.5 C from the station mean1995: 10.4 C, -0.5 C from the station mean1996: 10.1 C, -0.8 C from the station mean1997: 10.2 C, -0.7 C from the station mean1998: 12.3 C, +1.4 C from the station mean1999: 11.5 C, +0.5 C from the station mean2000: 10.6 C, -0.3 C from the station mean2001: 11.3 C, +0.3 C from the station mean2005: 10.9 C, -0.1 C from the station mean2006: 10.8 C, -0.2 C from the station mean2007: 10.7 C, -0.3 C from the station mean2008: 10.6 C, -0.4 C from the station mean2010: 11.0 C, 0.0 C from the station mean2011: 11.6 C, +0.6 C from the station mean2012: 12.3 C, +1.4 C from the station mean2013: 10.6 C, -0.4 C from the station mean198819901995200020052010
One stripe for each of 19 complete years at McKeesport, 1988 to 2013. Blue stripes are years cooler than the station's own mean of 11.0 C (51.7 F); red stripes are warmer. The coolest year was 1996, at 10.1 C (50.2 F), and the warmest was 2012, at 12.3 C (54.2 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at McKeesport as warming stripes, 1988 to 2013
YearAnnual mean temperatureDifference from the station mean
198810.2 C-0.77 C
199112.0 C+1.06 C
199310.7 C-0.29 C
199410.4 C-0.54 C
199510.4 C-0.52 C
199610.1 C-0.84 C
199710.2 C-0.71 C
199812.3 C+1.36 C
199911.5 C+0.51 C
200010.6 C-0.33 C
200111.3 C+0.35 C
200510.9 C-0.05 C
200610.8 C-0.18 C
200710.7 C-0.28 C
200810.6 C-0.37 C
201011.0 C+0.02 C
201111.6 C+0.62 C
201212.3 C+1.38 C
201310.6 C-0.37 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1928 to 2020
Yearly extremes at McKeesport: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)198833.9 C (93.0 F)44
Coldest night (TNn)-28.3 C (-18.9 F)1994-16.1 C (3.0 F)44
Wettest day (Rx1day)101.9 mm (4.0 in)197247.8 mm (1.9 in)89
Wettest five days (Rx5day)211.1 mm (8.3 in)201875.4 mm (3.0 in)89
Longest dry spell (CDD)38 days201116 days89

Hottest day (TXx)

Hottest day (TXx) at McKeesport by year The hottest day of the year at McKeesport, 1928 to 2020. The record is 38.3 C (100.9 F) in 1988, marked on the chart; the median year is 33.9 C (93.0 F). 202530354019401960198020002020Record: 38.3 C (100.9 F) in 1988
The hottest day of the year at McKeesport, 1928 to 2020. The record is 38.3 C (100.9 F) in 1988, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at McKeesport by year
YearHottest day (TXx)
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
195931.1 C (88.0 F)
1960n/a
1961n/a
1962n/a
1963n/a
196428.9 C (84.0 F)
1965n/a
196632.2 C (90.0 F)
196728.9 C (84.0 F)
196824.4 C (75.9 F)
196927.8 C (82.0 F)
1970n/a
197128.9 C (84.0 F)
197227.2 C (81.0 F)
1973n/a
1974n/a
197527.2 C (81.0 F)
1976n/a
1977n/a
197832.2 C (90.0 F)
1979n/a
1980n/a
1981n/a
1982n/a
198723.9 C (75.0 F)
198838.3 C (100.9 F)
198933.9 C (93.0 F)
199035.0 C (95.0 F)
199135.6 C (96.1 F)
199232.8 C (91.0 F)
199335.0 C (95.0 F)
199435.6 C (96.1 F)
199537.8 C (100.0 F)
199633.3 C (91.9 F)
199734.4 C (93.9 F)
199833.9 C (93.0 F)
199936.7 C (98.1 F)
200032.2 C (90.0 F)
200134.4 C (93.9 F)
200235.6 C (96.1 F)
200331.7 C (89.1 F)
200431.1 C (88.0 F)
200535.6 C (96.1 F)
200634.4 C (93.9 F)
200733.9 C (93.0 F)
200833.9 C (93.0 F)
200932.8 C (91.0 F)
201035.0 C (95.0 F)
201136.1 C (97.0 F)
201238.3 C (100.9 F)
201333.3 C (91.9 F)
201431.7 C (89.1 F)
201533.3 C (91.9 F)
201635.0 C (95.0 F)
201734.4 C (93.9 F)
201835.0 C (95.0 F)
201934.4 C (93.9 F)
202026.1 C (79.0 F)

Coldest night (TNn)

Coldest night (TNn) at McKeesport by year The coldest night of the year at McKeesport, 1928 to 2020. The record is -28.3 C (-18.9 F) in 1994, marked on the chart; the median year is -16.1 C (3.0 F). -40-2002019401960198020002020Record: -28.3 C (-18.9 F) in 1994
The coldest night of the year at McKeesport, 1928 to 2020. The record is -28.3 C (-18.9 F) in 1994, marked on the chart; the median year is -16.1 C (3.0 F).
Coldest night (TNn) at McKeesport by year
YearColdest night (TNn)
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
195918.9 C (66.0 F)
1960n/a
1961n/a
1962n/a
1963n/a
1964-1.7 C (28.9 F)
1965n/a
19663.3 C (37.9 F)
1967-12.2 C (10.0 F)
1968-4.4 C (24.1 F)
1969-5.6 C (21.9 F)
1970n/a
19710.6 C (33.1 F)
19722.2 C (36.0 F)
1973n/a
1974n/a
1975-17.2 C (1.0 F)
1976n/a
1977n/a
19787.8 C (46.0 F)
1979n/a
1980n/a
1981n/a
1982n/a
1987-8.9 C (16.0 F)
1988-17.8 C (0.0 F)
1989-13.9 C (7.0 F)
1990-15.0 C (5.0 F)
1991-13.3 C (8.1 F)
1992-16.1 C (3.0 F)
1993-16.1 C (3.0 F)
1994-28.3 C (-18.9 F)
1995-18.9 C (-2.0 F)
1996-20.6 C (-5.1 F)
1997-20.0 C (-4.0 F)
1998-12.2 C (10.0 F)
1999-17.8 C (0.0 F)
2000-18.3 C (-0.9 F)
2001-13.9 C (7.0 F)
2002-12.2 C (10.0 F)
2003-20.6 C (-5.1 F)
2004-22.8 C (-9.0 F)
2005-18.3 C (-0.9 F)
2006-14.4 C (6.1 F)
2007-18.9 C (-2.0 F)
2008-21.7 C (-7.1 F)
2009-21.7 C (-7.1 F)
2010-20.0 C (-4.0 F)
2011-20.6 C (-5.1 F)
2012-12.8 C (9.0 F)
2013-14.4 C (6.1 F)
2014-23.3 C (-9.9 F)
2015-28.3 C (-18.9 F)
2016-19.4 C (-2.9 F)
2017-21.7 C (-7.1 F)
2018-7.8 C (18.0 F)
2019-19.4 C (-2.9 F)
2020-12.2 C (10.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at McKeesport by year The wettest day of the year at McKeesport, 1928 to 2020. The record is 101.9 mm (4.0 in) in 1972, marked on the chart; the median year is 47.8 mm (1.9 in). 025507510012519401960198020002020Record: 101.9 mm (4.0 in) in 1972
The wettest day of the year at McKeesport, 1928 to 2020. The record is 101.9 mm (4.0 in) in 1972, marked on the chart; the median year is 47.8 mm (1.9 in).
Wettest day (Rx1day) at McKeesport by year
YearWettest day (Rx1day)
192821.8 mm (0.9 in)
192949.8 mm (2.0 in)
193036.3 mm (1.4 in)
193138.4 mm (1.5 in)
193227.7 mm (1.1 in)
193341.1 mm (1.6 in)
193440.6 mm (1.6 in)
193552.3 mm (2.1 in)
193671.9 mm (2.8 in)
193750.8 mm (2.0 in)
193840.4 mm (1.6 in)
193944.5 mm (1.8 in)
194047.0 mm (1.9 in)
194147.8 mm (1.9 in)
194254.6 mm (2.1 in)
194363.5 mm (2.5 in)
194440.6 mm (1.6 in)
194556.6 mm (2.2 in)
194639.4 mm (1.6 in)
194774.2 mm (2.9 in)
194848.0 mm (1.9 in)
194922.6 mm (0.9 in)
195073.9 mm (2.9 in)
195145.0 mm (1.8 in)
195246.2 mm (1.8 in)
195333.3 mm (1.3 in)
195438.1 mm (1.5 in)
195550.8 mm (2.0 in)
195656.4 mm (2.2 in)
195743.2 mm (1.7 in)
195843.7 mm (1.7 in)
195928.7 mm (1.1 in)
196047.5 mm (1.9 in)
196140.6 mm (1.6 in)
196236.3 mm (1.4 in)
196352.8 mm (2.1 in)
196438.1 mm (1.5 in)
196541.9 mm (1.6 in)
196652.1 mm (2.1 in)
196750.5 mm (2.0 in)
196843.2 mm (1.7 in)
196955.9 mm (2.2 in)
197066.5 mm (2.6 in)
197171.1 mm (2.8 in)
1972101.9 mm (4.0 in)
197333.8 mm (1.3 in)
197448.0 mm (1.9 in)
197566.0 mm (2.6 in)
197643.7 mm (1.7 in)
197765.5 mm (2.6 in)
197849.8 mm (2.0 in)
197952.1 mm (2.1 in)
198054.6 mm (2.1 in)
198135.3 mm (1.4 in)
198233.8 mm (1.3 in)
198719.1 mm (0.8 in)
198877.0 mm (3.0 in)
198938.1 mm (1.5 in)
199050.8 mm (2.0 in)
199150.8 mm (2.0 in)
199241.1 mm (1.6 in)
199342.7 mm (1.7 in)
199453.6 mm (2.1 in)
199531.5 mm (1.2 in)
199648.5 mm (1.9 in)
199753.3 mm (2.1 in)
199853.3 mm (2.1 in)
199962.2 mm (2.4 in)
200035.6 mm (1.4 in)
200150.8 mm (2.0 in)
200246.5 mm (1.8 in)
200334.3 mm (1.4 in)
200474.7 mm (2.9 in)
200547.8 mm (1.9 in)
200658.4 mm (2.3 in)
200744.5 mm (1.8 in)
200850.8 mm (2.0 in)
200947.2 mm (1.9 in)
201050.3 mm (2.0 in)
201141.1 mm (1.6 in)
201269.3 mm (2.7 in)
201351.6 mm (2.0 in)
201438.1 mm (1.5 in)
2015101.6 mm (4.0 in)
201641.4 mm (1.6 in)
201765.5 mm (2.6 in)
201898.6 mm (3.9 in)
201949.8 mm (2.0 in)
202039.9 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at McKeesport by year The wettest five days of the year at McKeesport, 1928 to 2020. The record is 211.1 mm (8.3 in) in 2018, marked on the chart; the median year is 75.4 mm (3.0 in). 05010015020025019401960198020002020Record: 211.1 mm (8.3 in) in 2018
The wettest five days of the year at McKeesport, 1928 to 2020. The record is 211.1 mm (8.3 in) in 2018, marked on the chart; the median year is 75.4 mm (3.0 in).
Wettest five days (Rx5day) at McKeesport by year
YearWettest five days (Rx5day)
192829.0 mm (1.1 in)
192981.9 mm (3.2 in)
193059.2 mm (2.3 in)
193154.8 mm (2.2 in)
193259.4 mm (2.3 in)
193379.3 mm (3.1 in)
193495.2 mm (3.7 in)
193572.1 mm (2.8 in)
1936107.2 mm (4.2 in)
193785.8 mm (3.4 in)
193866.9 mm (2.6 in)
193976.7 mm (3.0 in)
194075.4 mm (3.0 in)
194197.4 mm (3.8 in)
194280.3 mm (3.2 in)
1943104.1 mm (4.1 in)
194448.0 mm (1.9 in)
194593.5 mm (3.7 in)
194648.8 mm (1.9 in)
194774.2 mm (2.9 in)
1948101.5 mm (4.0 in)
194945.7 mm (1.8 in)
195078.2 mm (3.1 in)
1951100.1 mm (3.9 in)
195251.8 mm (2.0 in)
195353.6 mm (2.1 in)
195471.9 mm (2.8 in)
195586.3 mm (3.4 in)
195673.7 mm (2.9 in)
195763.0 mm (2.5 in)
195870.5 mm (2.8 in)
195951.6 mm (2.0 in)
196049.0 mm (1.9 in)
196153.0 mm (2.1 in)
196252.8 mm (2.1 in)
196381.0 mm (3.2 in)
196464.8 mm (2.6 in)
196546.0 mm (1.8 in)
196671.9 mm (2.8 in)
196783.5 mm (3.3 in)
196852.3 mm (2.1 in)
196963.6 mm (2.5 in)
197078.4 mm (3.1 in)
197179.2 mm (3.1 in)
1972188.3 mm (7.4 in)
197355.6 mm (2.2 in)
197489.7 mm (3.5 in)
1975112.7 mm (4.4 in)
197659.7 mm (2.4 in)
197766.3 mm (2.6 in)
197890.1 mm (3.5 in)
197972.6 mm (2.9 in)
198082.1 mm (3.2 in)
198163.9 mm (2.5 in)
198248.8 mm (1.9 in)
198728.6 mm (1.1 in)
1988121.5 mm (4.8 in)
198967.9 mm (2.7 in)
199093.0 mm (3.7 in)
199157.4 mm (2.3 in)
199278.7 mm (3.1 in)
199384.6 mm (3.3 in)
199495.0 mm (3.7 in)
199584.6 mm (3.3 in)
199678.0 mm (3.1 in)
199782.5 mm (3.2 in)
199877.7 mm (3.1 in)
199989.2 mm (3.5 in)
200055.9 mm (2.2 in)
200163.2 mm (2.5 in)
200262.5 mm (2.5 in)
200367.4 mm (2.7 in)
2004104.4 mm (4.1 in)
200598.8 mm (3.9 in)
200686.3 mm (3.4 in)
200782.4 mm (3.2 in)
200869.6 mm (2.7 in)
200959.4 mm (2.3 in)
201066.5 mm (2.6 in)
201157.4 mm (2.3 in)
2012109.8 mm (4.3 in)
201397.6 mm (3.8 in)
201462.2 mm (2.4 in)
2015147.6 mm (5.8 in)
2016106.1 mm (4.2 in)
2017156.0 mm (6.1 in)
2018211.1 mm (8.3 in)
201997.5 mm (3.8 in)
202059.4 mm (2.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at McKeesport by year The longest dry spell of the year at McKeesport, 1928 to 2020. The record is 38 days in 2011, marked on the chart; the median year is 16 days. 01020304019401960198020002020Record: 38 days in 2011
The longest dry spell of the year at McKeesport, 1928 to 2020. The record is 38 days in 2011, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at McKeesport by year
YearLongest dry spell (CDD)
192813 days
192917 days
193023 days
193126 days
193219 days
193325 days
193433 days
193524 days
193626 days
193723 days
193820 days
193924 days
194014 days
194119 days
194216 days
194326 days
194418 days
194516 days
194613 days
194718 days
194827 days
194913 days
195015 days
195118 days
195215 days
195320 days
195412 days
195515 days
195615 days
195720 days
195816 days
195912 days
196018 days
196110 days
196219 days
196322 days
196425 days
196513 days
196616 days
196726 days
196820 days
196923 days
197015 days
197117 days
197215 days
197314 days
197410 days
197520 days
197618 days
197717 days
197811 days
197910 days
198013 days
198113 days
198219 days
198710 days
198820 days
198911 days
199013 days
199115 days
199215 days
199311 days
199417 days
199531 days
199613 days
199714 days
199818 days
199917 days
200014 days
200115 days
200211 days
200312 days
200413 days
200519 days
200617 days
200713 days
200813 days
200918 days
201012 days
201138 days
201213 days
201312 days
201411 days
201513 days
201613 days
201714 days
201812 days
201921 days
20206 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

77 years, 1929 to 2019

A day with at least 47.6 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 97.0 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at McKeesport: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years47.6 mm (1.9 in)
5 years59.8 mm (2.4 in)
10 years68.2 mm (2.7 in)
25 years79.4 mm (3.1 in)
50 years88.1 mm (3.5 in)
100 years97.0 mm (3.8 in)Longer than the 77 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 77 years of values from 1929 to 2019.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 101.9 mm (4.0 in) in 1972; 101.6 mm (4.0 in) in 2015; 77.0 mm (3.0 in) in 1988.

Download the Data

  • Data for McKeesport standing records by year: CSV or JSON. Field meanings are on the data page.
  • 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).