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Built 2026-10-19 (19 October 2026)

Brunswick-McKinnon AP Threshold Days by Year (USW00013878)

16 fixed thresholds counted per year at Brunswick-McKinnon AP (USW00013878): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brunswick-McKinnon AP Thresholds

  • Brunswick-McKinnon AP: days with 10 mm (0.39 in) or more of precipitation in 83 years, most in 1979 with 51.
  • Brunswick-McKinnon AP: days with 25 mm (0.98 in) or more of precipitation in 83 years, most in 1964 with 24.
  • Brunswick-McKinnon AP: days with 50 mm (1.97 in) or more of precipitation in 82 years, most in 1953 with 11.
  • Brunswick-McKinnon AP: days with a maximum temperature at or above 30 C (86 F) in 81 years, most in 2019 with 140.
  • 16 fixed thresholds have at least one qualifying day at Brunswick-McKinnon AP.
81 years with a qualifying day
Days at or above 30 C (86 F) per year at Brunswick-McKinnon AP Days per year at Brunswick-McKinnon AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 140 in 2019. 0501001501945: 1151946: 761947: 991948: 1021949: 1121950: 1061951: 1151952: 1001953: 991954: 1131955: 1101956: 1031957: 921958: 1001959: 1011960: 1001961: 931962: 1101963: 1021964: 1011965: 941966: 811967: 901968: 991969: 881970: 1111971: 1191972: 901973: 1071974: 961975: 971976: 691977: 1071978: 961979: 881980: 1131981: 991982: 881983: 861984: 901985: 961986: 1171987: 961988: 711989: 781990: 1041991: 801992: 691993: 1051994: 971995: 961996: 971997: 1011998: 1151999: 832000: 1022001: 942002: 1052003: 862004: 882005: 922006: 1232007: 882008: 952009: 922010: 1182011: 1302012: 902013: 952014: 972015: 992016: 1122017: 1112018: 1372019: 1402020: 1142021: 1102022: 1262023: 1302025: 1082026: 114194519541963197219811990199920082017
Days per year at Brunswick-McKinnon AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 140 in 2019.
Days at or above 30 C (86 F) per year at Brunswick-McKinnon AP
YearDaysDecade average
1945115100.8
194676100.8
194799100.8
1948102100.8
1949112100.8
1950106103.9
1951115103.9
1952100103.9
195399103.9
1954113103.9
1955110103.9
1956103103.9
195792103.9
1958100103.9
1959101103.9
196010095.8
19619395.8
196211095.8
196310295.8
196410195.8
19659495.8
19668195.8
19679095.8
19689995.8
19698895.8
197011198
197111998
19729098
197310798
19749698
19759798
19766998
197710798
19789698
19798898
198011393.4
19819993.4
19828893.4
19838693.4
19849093.4
19859693.4
198611793.4
19879693.4
19887193.4
19897893.4
199010494.7
19918094.7
19926994.7
199310594.7
19949794.7
19959694.7
19969794.7
199710194.7
199811594.7
19998394.7
200010296.5
20019496.5
200210596.5
20038696.5
20048896.5
20059296.5
200612396.5
20078896.5
20089596.5
20099296.5
2010118112.9
2011130112.9
201290112.9
201395112.9
201497112.9
201599112.9
2016112112.9
2017111112.9
2018137112.9
2019140112.9
2020114117
2021110117
2022126117
2023130117
2025108117
2026114117
First to last qualifying date each year at Brunswick-McKinnon AP For each year, a bar from the first to the last day at Brunswick-McKinnon AP meeting 30 C (86 F). 1945: 24 April 1945 to 2 October 19451946: 3 April 1946 to 20 October 19461947: 26 April 1947 to 20 October 19471948: 8 April 1948 to 30 September 19481949: 8 April 1949 to 7 October 19491950: 13 March 1950 to 23 October 19501951: 3 May 1951 to 7 October 19511952: 29 April 1952 to 20 September 19521953: 31 March 1953 to 6 October 19531954: 30 March 1954 to 6 October 19541955: 16 April 1955 to 7 October 19551956: 6 April 1956 to 7 October 19561957: 4 May 1957 to 23 September 19571958: 24 April 1958 to 10 October 19581959: 1 May 1959 to 11 October 19591960: 8 April 1960 to 21 September 19601961: 30 March 1961 to 1 November 19611962: 1 May 1962 to 21 October 19621963: 19 March 1963 to 28 October 19631964: 15 March 1964 to 5 October 19641965: 7 April 1965 to 9 October 19651966: 1 April 1966 to 5 October 19661967: 11 March 1967 to 6 October 19671968: 1 April 1968 to 8 October 19681969: 18 April 1969 to 14 October 19691970: 14 April 1970 to 13 October 19701971: 18 April 1971 to 16 October 19711972: 13 April 1972 to 19 October 19721973: 9 May 1973 to 5 October 19731974: 10 March 1974 to 29 September 19741975: 24 March 1975 to 12 October 19751976: 25 April 1976 to 8 October 19761977: 16 March 1977 to 2 October 19771978: 5 April 1978 to 6 October 19781979: 19 May 1979 to 2 October 19791980: 23 April 1980 to 19 October 19801981: 19 April 1981 to 18 October 19811982: 20 March 1982 to 13 October 19821983: 24 May 1983 to 6 October 19831984: 28 April 1984 to 15 September 19841985: 27 April 1985 to 4 October 19851986: 7 April 1986 to 14 October 19861987: 30 April 1987 to 21 September 19871988: 22 April 1988 to 25 September 19881989: 23 April 1989 to 7 October 19891990: 30 April 1990 to 15 October 19901991: 28 April 1991 to 19 September 19911992: 24 April 1992 to 23 September 19921993: 17 May 1993 to 10 October 19931994: 8 May 1994 to 3 October 19941995: 23 March 1995 to 5 October 19951996: 5 May 1996 to 27 September 19961997: 21 April 1997 to 1 October 19971998: 3 April 1998 to 27 September 19981999: 8 April 1999 to 14 September 19992000: 21 April 2000 to 6 October 20002001: 13 April 2001 to 25 October 20012002: 20 April 2002 to 7 October 20022003: 7 May 2003 to 28 September 20032004: 6 May 2004 to 1 October 20042005: 8 May 2005 to 2 October 20052006: 2 April 2006 to 22 October 20062007: 4 April 2007 to 18 October 20072008: 12 April 2008 to 17 October 20082009: 23 April 2009 to 10 October 20092010: 4 May 2010 to 28 October 20102011: 19 March 2011 to 15 October 20112012: 2 April 2012 to 7 October 20122013: 12 April 2013 to 16 September 20132014: 5 May 2014 to 9 October 20142015: 17 March 2015 to 21 September 20152016: 16 March 2016 to 3 October 20162017: 21 March 2017 to 16 October 20172018: 19 April 2018 to 20 October 20182019: 24 April 2019 to 31 October 20192020: 15 March 2020 to 29 October 20202021: 28 March 2021 to 16 October 20212022: 7 April 2022 to 17 October 20222023: 23 February 2023 to 22 October 20232025: 7 April 2025 to 26 September 20252026: 20 February 2026 to 12 October 202619451956196719781989200020112022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Brunswick-McKinnon AP meeting 30 C (86 F).
First to last qualifying date each year at Brunswick-McKinnon AP
YearFirst dateLast date
19451945-04-241945-10-02
19461946-04-031946-10-20
19471947-04-261947-10-20
19481948-04-081948-09-30
19491949-04-081949-10-07
19501950-03-131950-10-23
19511951-05-031951-10-07
19521952-04-291952-09-20
19531953-03-311953-10-06
19541954-03-301954-10-06
19551955-04-161955-10-07
19561956-04-061956-10-07
19571957-05-041957-09-23
19581958-04-241958-10-10
19591959-05-011959-10-11
19601960-04-081960-09-21
19611961-03-301961-11-01
19621962-05-011962-10-21
19631963-03-191963-10-28
19641964-03-151964-10-05
19651965-04-071965-10-09
19661966-04-011966-10-05
19671967-03-111967-10-06
19681968-04-011968-10-08
19691969-04-181969-10-14
19701970-04-141970-10-13
19711971-04-181971-10-16
19721972-04-131972-10-19
19731973-05-091973-10-05
19741974-03-101974-09-29
19751975-03-241975-10-12
19761976-04-251976-10-08
19771977-03-161977-10-02
19781978-04-051978-10-06
19791979-05-191979-10-02
19801980-04-231980-10-19
19811981-04-191981-10-18
19821982-03-201982-10-13
19831983-05-241983-10-06
19841984-04-281984-09-15
19851985-04-271985-10-04
19861986-04-071986-10-14
19871987-04-301987-09-21
19881988-04-221988-09-25
19891989-04-231989-10-07
19901990-04-301990-10-15
19911991-04-281991-09-19
19921992-04-241992-09-23
19931993-05-171993-10-10
19941994-05-081994-10-03
19951995-03-231995-10-05
19961996-05-051996-09-27
19971997-04-211997-10-01
19981998-04-031998-09-27
19991999-04-081999-09-14
20002000-04-212000-10-06
20012001-04-132001-10-25
20022002-04-202002-10-07
20032003-05-072003-09-28
20042004-05-062004-10-01
20052005-05-082005-10-02
20062006-04-022006-10-22
20072007-04-042007-10-18
20082008-04-122008-10-17
20092009-04-232009-10-10
20102010-05-042010-10-28
20112011-03-192011-10-15
20122012-04-022012-10-07
20132013-04-122013-09-16
20142014-05-052014-10-09
20152015-03-172015-09-21
20162016-03-162016-10-03
20172017-03-212017-10-16
20182018-04-192018-10-20
20192019-04-242019-10-31
20202020-03-152020-10-29
20212021-03-282021-10-16
20222022-04-072022-10-17
20232023-02-232023-10-22
20252025-04-072025-09-26
20262026-02-202026-10-12

Every Fixed Threshold

Fixed thresholds at Brunswick-McKinnon AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days811402019114
35 C (95 F): Days8137202319
40 C (104 F): Days1119861
90 F (32.2 C): Days8189202349
100 F (37.8 C): Days21520235
0 C (32 F): Ice days (max4119831
0 C (32 F): Frost days (min813019606
-10 C (14 F): Days with min3219831
20 C (68 F): Tropical nights (min811792019148
25 C (77 F): Days with min8182199883
10 mm (0.39 in): Days with 10 mm or more rain8351197935
25 mm (0.98 in): Days with 25 mm or more rain8324196413
50 mm (1.97 in): Days with 50 mm or more rain821119534
100 mm (3.94 in): Days with 100 mm or more rain41419531
200 mm (7.87 in): Days with 200 mm or more rain6119501
10 cm (3.9 in): Days with 10 cm or more snowfall1119891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

  • Data for Brunswick-McKinnon 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 (2026-10-17).