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Built 2026-10-19 (19 October 2026)

Jasper Threshold Days by Year (USC00084394)

15 fixed thresholds counted per year at Jasper (USC00084394): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jasper Thresholds

  • Jasper: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1959 with 70.
  • Jasper: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 1959 with 26.
  • Jasper: days with a maximum temperature at or above 30 C (86 F) in 66 years, most in 1962 with 178.
  • Jasper: days with a maximum temperature at or above 90 F (32.2 C) in 66 years, most in 1962 with 142.
  • 15 fixed thresholds have at least one qualifying day at Jasper.
66 years with a qualifying day
Days at or above 30 C (86 F) per year at Jasper Days per year at Jasper with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 178 in 1962. 0501001502001954: 1361955: 1641956: 1251957: 1291958: 1301959: 1411960: 1361961: 1531962: 1781963: 1661964: 1431965: 1621966: 1331967: 1591968: 1601969: 1481970: 1601971: 1541972: 1351973: 1441974: 1441976: 1201977: 1611978: 1381979: 1241980: 1421981: 1431982: 1461983: 1301984: 1391985: 1441986: 1581987: 1331988: 1311989: 1401990: 1311991: 1421992: 1031993: 1161994: 1001995: 1251996: 1201997: 1311998: 1421999: 1562000: 1362001: 1362002: 1552003: 1402004: 1442005: 1342006: 1502007: 1112008: 1392009: 1452010: 1572011: 1552012: 1262013: 1202014: 1362015: 1322016: 1252017: 1382018: 1252019: 1372026: 1381954196119681976198319901997200420112018
Days per year at Jasper with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 178 in 1962.
Days at or above 30 C (86 F) per year at Jasper
YearDaysDecade average
1954136137.5
1955164137.5
1956125137.5
1957129137.5
1958130137.5
1959141137.5
1960136153.8
1961153153.8
1962178153.8
1963166153.8
1964143153.8
1965162153.8
1966133153.8
1967159153.8
1968160153.8
1969148153.8
1970160142.2
1971154142.2
1972135142.2
1973144142.2
1974144142.2
1976120142.2
1977161142.2
1978138142.2
1979124142.2
1980142140.6
1981143140.6
1982146140.6
1983130140.6
1984139140.6
1985144140.6
1986158140.6
1987133140.6
1988131140.6
1989140140.6
1990131126.6
1991142126.6
1992103126.6
1993116126.6
1994100126.6
1995125126.6
1996120126.6
1997131126.6
1998142126.6
1999156126.6
2000136139
2001136139
2002155139
2003140139
2004144139
2005134139
2006150139
2007111139
2008139139
2009145139
2010157135.1
2011155135.1
2012126135.1
2013120135.1
2014136135.1
2015132135.1
2016125135.1
2017138135.1
2018125135.1
2019137135.1
2026138138
First to last qualifying date each year at Jasper For each year, a bar from the first to the last day at Jasper meeting 30 C (86 F). 1954: 13 March 1954 to 13 October 19541955: 12 March 1955 to 8 October 19551956: 4 April 1956 to 5 October 19561957: 6 February 1957 to 24 September 19571958: 23 April 1958 to 11 October 19581959: 7 April 1959 to 5 November 19591960: 29 March 1960 to 14 October 19601961: 4 March 1961 to 4 November 19611962: 23 February 1962 to 21 October 19621963: 11 March 1963 to 28 October 19631964: 4 March 1964 to 4 October 19641965: 17 March 1965 to 16 October 19651966: 3 April 1966 to 25 October 19661967: 10 March 1967 to 8 October 19671968: 19 March 1968 to 19 October 19681969: 2 April 1969 to 15 October 19691970: 2 April 1970 to 16 October 19701971: 18 April 1971 to 3 November 19711972: 15 April 1972 to 4 November 19721973: 14 March 1973 to 16 October 19731974: 8 March 1974 to 16 October 19741976: 4 March 1976 to 7 October 19761977: 16 March 1977 to 23 October 19771978: 2 April 1978 to 27 October 19781979: 12 April 1979 to 24 October 19791980: 29 March 1980 to 20 October 19801981: 5 April 1981 to 19 October 19811982: 14 March 1982 to 14 October 19821983: 6 April 1983 to 19 October 19831984: 20 March 1984 to 31 October 19841985: 21 April 1985 to 24 October 19851986: 13 March 1986 to 11 November 19861987: 14 April 1987 to 21 October 19871988: 6 April 1988 to 3 October 19881989: 6 March 1989 to 24 October 19891990: 17 March 1990 to 23 October 19901991: 27 March 1991 to 1 December 19911992: 21 April 1992 to 30 September 19921993: 14 April 1993 to 22 October 19931994: 16 April 1994 to 3 October 19941995: 20 April 1995 to 3 November 19951996: 15 April 1996 to 1 November 19961997: 2 March 1997 to 16 October 19971998: 30 March 1998 to 2 November 19981999: 3 April 1999 to 14 October 19992000: 21 April 2000 to 30 October 20002001: 1 March 2001 to 28 October 20012002: 18 March 2002 to 12 November 20022003: 7 April 2003 to 8 November 20032004: 11 April 2004 to 4 November 20042005: 13 May 2005 to 22 October 20052006: 3 April 2006 to 24 October 20062007: 16 May 2007 to 24 October 20072008: 2 April 2008 to 18 October 20082009: 13 March 2009 to 2 November 20092010: 3 April 2010 to 29 October 20102011: 20 March 2011 to 18 October 20112012: 2 April 2012 to 25 October 20122013: 12 April 2013 to 19 October 20132014: 27 April 2014 to 13 October 20142015: 9 April 2015 to 17 October 20152016: 28 April 2016 to 1 November 20162017: 1 March 2017 to 23 October 20172018: 12 May 2018 to 21 October 20182019: 13 April 2019 to 1 November 20192026: 6 March 2026 to 30 September 202619541963197219821991200020092018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Jasper meeting 30 C (86 F).
First to last qualifying date each year at Jasper
YearFirst dateLast date
19541954-03-131954-10-13
19551955-03-121955-10-08
19561956-04-041956-10-05
19571957-02-061957-09-24
19581958-04-231958-10-11
19591959-04-071959-11-05
19601960-03-291960-10-14
19611961-03-041961-11-04
19621962-02-231962-10-21
19631963-03-111963-10-28
19641964-03-041964-10-04
19651965-03-171965-10-16
19661966-04-031966-10-25
19671967-03-101967-10-08
19681968-03-191968-10-19
19691969-04-021969-10-15
19701970-04-021970-10-16
19711971-04-181971-11-03
19721972-04-151972-11-04
19731973-03-141973-10-16
19741974-03-081974-10-16
19761976-03-041976-10-07
19771977-03-161977-10-23
19781978-04-021978-10-27
19791979-04-121979-10-24
19801980-03-291980-10-20
19811981-04-051981-10-19
19821982-03-141982-10-14
19831983-04-061983-10-19
19841984-03-201984-10-31
19851985-04-211985-10-24
19861986-03-131986-11-11
19871987-04-141987-10-21
19881988-04-061988-10-03
19891989-03-061989-10-24
19901990-03-171990-10-23
19911991-03-271991-12-01
19921992-04-211992-09-30
19931993-04-141993-10-22
19941994-04-161994-10-03
19951995-04-201995-11-03
19961996-04-151996-11-01
19971997-03-021997-10-16
19981998-03-301998-11-02
19991999-04-031999-10-14
20002000-04-212000-10-30
20012001-03-012001-10-28
20022002-03-182002-11-12
20032003-04-072003-11-08
20042004-04-112004-11-04
20052005-05-132005-10-22
20062006-04-032006-10-24
20072007-05-162007-10-24
20082008-04-022008-10-18
20092009-03-132009-11-02
20102010-04-032010-10-29
20112011-03-202011-10-18
20122012-04-022012-10-25
20132013-04-122013-10-19
20142014-04-272014-10-13
20152015-04-092015-10-17
20162016-04-282016-11-01
20172017-03-012017-10-23
20182018-05-122018-10-21
20192019-04-132019-11-01
20262026-03-062026-09-30

Every Fixed Threshold

Fixed thresholds at Jasper
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days661781962138
35 C (95 F): Days6383196247
40 C (104 F): Days2219541
90 F (32.2 C): Days661421962103
100 F (37.8 C): Days271019542
0 C (32 F): Ice days (max3119831
0 C (32 F): Frost days (min6664201025
-10 C (14 F): Days with min7419851
20 C (68 F): Tropical nights (min66120199881
25 C (77 F): Days with min18419655
10 mm (0.39 in): Days with 10 mm or more rain7070195919
25 mm (0.98 in): Days with 25 mm or more rain702619597
50 mm (1.97 in): Days with 50 mm or more rain661019595
100 mm (3.94 in): Days with 100 mm or more rain29320121
200 mm (7.87 in): Days with 200 mm or more rain3119621

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

  • Data for Jasper 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 (2026-10-17).