Built 2026-10-19 (19 October 2026)

Grand Marais Threshold Days by Year (USC00213282)

16 fixed thresholds counted per year at Grand Marais (USC00213282): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grand Marais Thresholds

  • Grand Marais: days with a maximum temperature at or below 0 C (32 F) in 99 years, most in 1972 with 113.
  • Grand Marais: nights with a minimum temperature at or below 0 C (32 F) in 98 years, most in 1947 with 212.
  • Grand Marais: nights with a minimum temperature at or below -10 C (14 F) in 98 years, most in 2013 with 106.
  • Grand Marais: nights with a minimum temperature at or below -20 C (-4 F) in 98 years, most in 2014 with 48.
  • 16 fixed thresholds have at least one qualifying day at Grand Marais.
57 years with a qualifying day
Days at or above 30 C (86 F) per year at Grand Marais Days per year at Grand Marais with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 9 in 1929. 0358101917: 11924: 11925: 41926: 11929: 91930: 81931: 81932: 11933: 31934: 51935: 41936: 31941: 11943: 11945: 21948: 21953: 31954: 11957: 21958: 11959: 21963: 11964: 11965: 11966: 21970: 21974: 21976: 11977: 11978: 11979: 11980: 11981: 11983: 11986: 21987: 31988: 31989: 21991: 21995: 21998: 51999: 52000: 42001: 42002: 42003: 12004: 12005: 42006: 72007: 22008: 32010: 22013: 12016: 22021: 32022: 12024: 21917193119411957196619791988200020062021
Days per year at Grand Marais with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 9 in 1929.
Days at or above 30 C (86 F) per year at Grand Marais
YearDaysDecade average
191711
192413.8
192543.8
192613.8
192993.8
193084.6
193184.6
193214.6
193334.6
193454.6
193544.6
193634.6
194111.5
194311.5
194521.5
194821.5
195331.8
195411.8
195721.8
195811.8
195921.8
196311.3
196411.3
196511.3
196621.3
197021.3
197421.3
197611.3
197711.3
197811.3
197911.3
198011.9
198111.9
198311.9
198621.9
198731.9
198831.9
198921.9
199123.5
199523.5
199853.5
199953.5
200043.3
200143.3
200243.3
200313.3
200413.3
200543.3
200673.3
200723.3
200833.3
201021.7
201311.7
201621.7
202132
202212
202422
First to last qualifying date each year at Grand Marais For each year, a bar from the first to the last day at Grand Marais meeting 30 C (86 F). 1917: 30 July 1917 to 30 July 19171924: 26 August 1924 to 26 August 19241925: 11 July 1925 to 15 July 19251926: 28 June 1926 to 28 June 19261929: 17 July 1929 to 2 September 19291930: 4 August 1930 to 25 August 19301931: 2 July 1931 to 18 August 19311932: 17 July 1932 to 17 July 19321933: 12 July 1933 to 6 September 19331934: 30 June 1934 to 20 July 19341935: 21 July 1935 to 31 July 19351936: 13 July 1936 to 9 August 19361941: 11 August 1941 to 11 August 19411943: 21 June 1943 to 21 June 19431945: 24 July 1945 to 1 August 19451948: 5 July 1948 to 29 August 19481953: 8 May 1953 to 1 September 19531954: 12 July 1954 to 12 July 19541957: 29 July 1957 to 2 August 19571958: 2 August 1958 to 2 August 19581959: 30 July 1959 to 31 July 19591963: 1 July 1963 to 1 July 19631964: 18 July 1964 to 18 July 19641965: 14 August 1965 to 14 August 19651966: 12 July 1966 to 18 July 19661970: 29 June 1970 to 16 July 19701974: 18 July 1974 to 19 July 19741976: 23 July 1976 to 23 July 19761977: 20 July 1977 to 20 July 19771978: 2 September 1978 to 2 September 19781979: 7 August 1979 to 7 August 19791980: 26 June 1980 to 26 June 19801981: 13 July 1981 to 13 July 19811983: 30 July 1983 to 30 July 19831986: 29 May 1986 to 30 May 19861987: 14 June 1987 to 2 August 19871988: 20 June 1988 to 14 July 19881989: 6 July 1989 to 7 July 19891991: 30 August 1991 to 31 August 19911995: 28 July 1995 to 29 July 19951998: 14 July 1998 to 6 September 19981999: 24 July 1999 to 31 July 19992000: 10 July 2000 to 9 August 20002001: 9 July 2001 to 8 August 20012002: 31 May 2002 to 30 July 20022003: 25 August 2003 to 25 August 20032004: 22 July 2004 to 22 July 20042005: 13 July 2005 to 25 July 20052006: 13 July 2006 to 12 August 20062007: 4 July 2007 to 27 July 20072008: 6 July 2008 to 16 August 20082010: 3 August 2010 to 4 August 20102013: 22 August 2013 to 22 August 20132016: 22 July 2016 to 23 July 20162021: 6 July 2021 to 26 July 20212022: 1 July 2022 to 1 July 20222024: 15 July 2024 to 3 August 202419171933195319661981199820062024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Grand Marais meeting 30 C (86 F).
First to last qualifying date each year at Grand Marais
YearFirst dateLast date
19171917-07-301917-07-30
19241924-08-261924-08-26
19251925-07-111925-07-15
19261926-06-281926-06-28
19291929-07-171929-09-02
19301930-08-041930-08-25
19311931-07-021931-08-18
19321932-07-171932-07-17
19331933-07-121933-09-06
19341934-06-301934-07-20
19351935-07-211935-07-31
19361936-07-131936-08-09
19411941-08-111941-08-11
19431943-06-211943-06-21
19451945-07-241945-08-01
19481948-07-051948-08-29
19531953-05-081953-09-01
19541954-07-121954-07-12
19571957-07-291957-08-02
19581958-08-021958-08-02
19591959-07-301959-07-31
19631963-07-011963-07-01
19641964-07-181964-07-18
19651965-08-141965-08-14
19661966-07-121966-07-18
19701970-06-291970-07-16
19741974-07-181974-07-19
19761976-07-231976-07-23
19771977-07-201977-07-20
19781978-09-021978-09-02
19791979-08-071979-08-07
19801980-06-261980-06-26
19811981-07-131981-07-13
19831983-07-301983-07-30
19861986-05-291986-05-30
19871987-06-141987-08-02
19881988-06-201988-07-14
19891989-07-061989-07-07
19911991-08-301991-08-31
19951995-07-281995-07-29
19981998-07-141998-09-06
19991999-07-241999-07-31
20002000-07-102000-08-09
20012001-07-092001-08-08
20022002-05-312002-07-30
20032003-08-252003-08-25
20042004-07-222004-07-22
20052005-07-132005-07-25
20062006-07-132006-08-12
20072007-07-042007-07-27
20082008-07-062008-08-16
20102010-08-032010-08-04
20132013-08-222013-08-22
20162016-07-222016-07-23
20212021-07-062021-07-26
20222022-07-012022-07-01
20242024-07-152024-08-03

Every Fixed Threshold

Fixed thresholds at Grand Marais
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days57919292
35 C (95 F): Days4119251
90 F (32.2 C): Days26520061
100 F (37.8 C): Days1119301
0 C (32 F): Ice days (max99113197266
0 C (32 F): Frost days (min982121947118
-10 C (14 F): Days with min98106201349
-20 C (-4 F): Days with min9848201417
-30 C (-22 F): Days with min50719632
20 C (68 F): Tropical nights (min8219192
10 mm (0.39 in): Days with 10 mm or more rain9836197014
25 mm (0.98 in): Days with 25 mm or more rain971019482
50 mm (1.97 in): Days with 50 mm or more rain43219332
100 mm (3.94 in): Days with 100 mm or more rain2119961
10 cm (3.9 in): Days with 10 cm or more snowfall701019894
25 cm (9.8 in): Days with 25 cm or more snowfall17219531

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Grand Marais 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 (2026-10-12).