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Built 2026-10-19 (19 October 2026)

Kittanning Lock 7 Threshold Days by Year (USC00364611)

7 fixed thresholds counted per year at Kittanning Lock 7 (USC00364611): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kittanning Lock 7 Thresholds

  • Kittanning Lock 7: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1990 with 42.
  • Kittanning Lock 7: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1964 with 13.
  • Kittanning Lock 7: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 2004 with 4.
  • Kittanning Lock 7: days with 10 cm (3.9 in) or more of snowfall in 22 years, most in 1960 with 5.
  • 7 fixed thresholds have at least one qualifying day at Kittanning Lock 7.
44 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Kittanning Lock 7 Days per year at Kittanning Lock 7 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1990. 02040601952: 331953: 371954: 391955: 341956: 411957: 271958: 361959: 371960: 271961: 371962: 301963: 261964: 281965: 291966: 301967: 291968: 321969: 261970: 401971: 301972: 371973: 371974: 321975: 411976: 331977: 331978: 341980: 321990: 421994: 381996: 371998: 301999: 322000: 312001: 362002: 372003: 422004: 402005: 322006: 392007: 382008: 372009: 342010: 35195219571962196719721977199620022007
Days per year at Kittanning Lock 7 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1990.
Days with 10 mm (0.39 in) or more of precipitation per year at Kittanning Lock 7
YearDaysDecade average
19523335.5
19533735.5
19543935.5
19553435.5
19564135.5
19572735.5
19583635.5
19593735.5
19602729.4
19613729.4
19623029.4
19632629.4
19642829.4
19652929.4
19663029.4
19672929.4
19683229.4
19692629.4
19704035.2
19713035.2
19723735.2
19733735.2
19743235.2
19754135.2
19763335.2
19773335.2
19783435.2
19803232
19904235.8
19943835.8
19963735.8
19983035.8
19993235.8
20003136.6
20013636.6
20023736.6
20034236.6
20044036.6
20053236.6
20063936.6
20073836.6
20083736.6
20093436.6
20103535
First to last qualifying date each year at Kittanning Lock 7 For each year, a bar from the first to the last day at Kittanning Lock 7 meeting 10 mm (0.39 in). 1952: 3 January 1952 to 11 December 19521953: 9 January 1953 to 14 December 19531954: 21 January 1954 to 30 December 19541955: 6 January 1955 to 17 November 19551956: 20 January 1956 to 24 December 19561957: 23 January 1957 to 26 December 19571958: 15 January 1958 to 29 November 19581959: 2 January 1959 to 13 December 19591960: 3 January 1960 to 21 December 19601961: 1 January 1961 to 24 November 19611962: 16 January 1962 to 30 December 19621963: 3 February 1963 to 24 December 19631964: 2 January 1964 to 28 December 19641965: 2 January 1965 to 12 December 19651966: 3 January 1966 to 11 December 19661967: 1 February 1967 to 4 December 19671968: 29 January 1968 to 28 December 19681969: 20 January 1969 to 31 December 19691970: 29 January 1970 to 17 December 19701971: 5 January 1971 to 31 December 19711972: 3 January 1972 to 22 December 19721973: 4 January 1973 to 21 December 19731974: 9 January 1974 to 16 December 19741975: 2 January 1975 to 26 December 19751976: 8 January 1976 to 7 December 19761977: 18 March 1977 to 15 December 19771978: 21 January 1978 to 25 December 19781980: 16 February 1980 to 18 November 19801990: 30 January 1990 to 28 December 19901994: 4 January 1994 to 29 November 19941996: 19 January 1996 to 30 December 19961998: 5 January 1998 to 22 December 19981999: 4 January 1999 to 21 December 19992000: 4 January 2000 to 18 December 20002001: 22 January 2001 to 18 December 20012002: 7 January 2002 to 27 December 20022003: 3 January 2003 to 30 December 20032004: 1 January 2004 to 10 December 20042005: 4 January 2005 to 16 December 20052006: 3 January 2006 to 26 December 20062007: 14 February 2007 to 26 December 20072008: 11 January 2008 to 29 December 20082009: 7 January 2009 to 28 December 20092010: 19 January 2010 to 15 December 201019521958196419701976199620032009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Kittanning Lock 7 meeting 10 mm (0.39 in).
First to last qualifying date each year at Kittanning Lock 7
YearFirst dateLast date
19521952-01-031952-12-11
19531953-01-091953-12-14
19541954-01-211954-12-30
19551955-01-061955-11-17
19561956-01-201956-12-24
19571957-01-231957-12-26
19581958-01-151958-11-29
19591959-01-021959-12-13
19601960-01-031960-12-21
19611961-01-011961-11-24
19621962-01-161962-12-30
19631963-02-031963-12-24
19641964-01-021964-12-28
19651965-01-021965-12-12
19661966-01-031966-12-11
19671967-02-011967-12-04
19681968-01-291968-12-28
19691969-01-201969-12-31
19701970-01-291970-12-17
19711971-01-051971-12-31
19721972-01-031972-12-22
19731973-01-041973-12-21
19741974-01-091974-12-16
19751975-01-021975-12-26
19761976-01-081976-12-07
19771977-03-181977-12-15
19781978-01-211978-12-25
19801980-02-161980-11-18
19901990-01-301990-12-28
19941994-01-041994-11-29
19961996-01-191996-12-30
19981998-01-051998-12-22
19991999-01-041999-12-21
20002000-01-042000-12-18
20012001-01-222001-12-18
20022002-01-072002-12-27
20032003-01-032003-12-30
20042004-01-012004-12-10
20052005-01-042005-12-16
20062006-01-032006-12-26
20072007-02-142007-12-26
20082008-01-112008-12-29
20092009-01-072009-12-28
20102010-01-192010-12-15

Every Fixed Threshold

Fixed thresholds at Kittanning Lock 7
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4442199035
25 mm (0.98 in): Days with 25 mm or more rain441319647
50 mm (1.97 in): Days with 50 mm or more rain23420043
100 mm (3.94 in): Days with 100 mm or more rain3119541
10 cm (3.9 in): Days with 10 cm or more snowfall22519603
25 cm (9.8 in): Days with 25 cm or more snowfall6119601
50 cm (19.7 in): Days with 50 cm or more snowfall1119641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Kittanning Lock 7 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).