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Built 2026-10-19 (19 October 2026)

Flint Threshold Days by Year

16 fixed thresholds counted per year at Flint (USC00413192): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Flint Thresholds

  • Flint: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1939 with 158.
  • Flint: days with a maximum temperature at or above 90 F (32.2 C) in 39 years, most in 1939 with 136.
  • Flint: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1912 with 53.
  • Flint: nights with a minimum temperature at or above 20 C (68 F) in 39 years, most in 1921 with 138.
  • 16 fixed thresholds have at least one qualifying day at Flint.
39 years with a qualifying day
Days at or above 30 C (86 F) per year at Flint Days per year at Flint with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 158 in 1939. 0501001502001906: 1021907: 931910: 1571911: 1541912: 1301913: 1251914: 1231915: 1231916: 1471917: 1211918: 1201919: 1061920: 1291921: 1421924: 1061925: 1521926: 1291927: 1211928: 951929: 1011930: 1271931: 1381932: 971933: 1021934: 1201935: 1081936: 1291937: 1371938: 1371939: 1581940: 1461941: 1541942: 1221943: 1331944: 1251945: 1021946: 1131947: 1261948: 1491906191219161920192619301934193819421946
Days per year at Flint with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 158 in 1939.
Days at or above 30 C (86 F) per year at Flint
YearDaysDecade average
190610297.5
19079397.5
1910157130.6
1911154130.6
1912130130.6
1913125130.6
1914123130.6
1915123130.6
1916147130.6
1917121130.6
1918120130.6
1919106130.6
1920129121.9
1921142121.9
1924106121.9
1925152121.9
1926129121.9
1927121121.9
192895121.9
1929101121.9
1930127125.3
1931138125.3
193297125.3
1933102125.3
1934120125.3
1935108125.3
1936129125.3
1937137125.3
1938137125.3
1939158125.3
1940146130
1941154130
1942122130
1943133130
1944125130
1945102130
1946113130
1947126130
1948149130
First to last qualifying date each year at Flint For each year, a bar from the first to the last day at Flint meeting 30 C (86 F). 1906: 10 April 1906 to 23 September 19061907: 24 May 1907 to 1 October 19071910: 21 March 1910 to 26 October 19101911: 31 January 1911 to 15 October 19111912: 1 May 1912 to 11 October 19121913: 31 March 1913 to 10 October 19131914: 15 April 1914 to 10 October 19141915: 29 April 1915 to 9 November 19151916: 6 March 1916 to 31 October 19161917: 25 February 1917 to 28 October 19171918: 25 February 1918 to 20 October 19181919: 12 April 1919 to 27 October 19191920: 18 March 1920 to 12 October 19201921: 25 March 1921 to 19 October 19211924: 14 April 1924 to 22 September 19241925: 14 April 1925 to 8 October 19251926: 8 May 1926 to 12 October 19261927: 2 April 1927 to 30 September 19271928: 15 May 1928 to 4 October 19281929: 1 June 1929 to 10 October 19291930: 7 April 1930 to 1 October 19301931: 15 May 1931 to 22 October 19311932: 20 April 1932 to 22 September 19321933: 30 April 1933 to 30 September 19331934: 21 May 1934 to 25 October 19341935: 25 March 1935 to 22 October 19351936: 5 April 1936 to 25 September 19361937: 17 April 1937 to 7 October 19371938: 6 May 1938 to 29 October 19381939: 27 March 1939 to 27 October 19391940: 29 February 1940 to 30 October 19401941: 13 April 1941 to 27 October 19411942: 13 March 1942 to 9 November 19421943: 2 April 1943 to 25 September 19431944: 10 April 1944 to 30 October 19441945: 12 April 1945 to 2 November 19451946: 29 March 1946 to 28 October 19461947: 30 April 1947 to 24 October 19471948: 6 April 1948 to 5 November 194819061913191819251930193519401945JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Flint meeting 30 C (86 F).
First to last qualifying date each year at Flint
YearFirst dateLast date
19061906-04-101906-09-23
19071907-05-241907-10-01
19101910-03-211910-10-26
19111911-01-311911-10-15
19121912-05-011912-10-11
19131913-03-311913-10-10
19141914-04-151914-10-10
19151915-04-291915-11-09
19161916-03-061916-10-31
19171917-02-251917-10-28
19181918-02-251918-10-20
19191919-04-121919-10-27
19201920-03-181920-10-12
19211921-03-251921-10-19
19241924-04-141924-09-22
19251925-04-141925-10-08
19261926-05-081926-10-12
19271927-04-021927-09-30
19281928-05-151928-10-04
19291929-06-011929-10-10
19301930-04-071930-10-01
19311931-05-151931-10-22
19321932-04-201932-09-22
19331933-04-301933-09-30
19341934-05-211934-10-25
19351935-03-251935-10-22
19361936-04-051936-09-25
19371937-04-171937-10-07
19381938-05-061938-10-29
19391939-03-271939-10-27
19401940-02-291940-10-30
19411941-04-131941-10-27
19421942-03-131942-11-09
19431943-04-021943-09-25
19441944-04-101944-10-30
19451945-04-121945-11-02
19461946-03-291946-10-28
19471947-04-301947-10-24
19481948-04-061948-11-05

Every Fixed Threshold

Fixed thresholds at Flint
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days391581939149
35 C (95 F): Days3886192176
40 C (104 F): Days1811192111
90 F (32.2 C): Days391361939106
100 F (37.8 C): Days3644193024
0 C (32 F): Ice days (max28719487
0 C (32 F): Frost days (min3953191248
-10 C (14 F): Days with min20519401
20 C (68 F): Tropical nights (min39138192198
25 C (77 F): Days with min3460192410
10 mm (0.39 in): Days with 10 mm or more rain3945194422
25 mm (0.98 in): Days with 25 mm or more rain392319466
50 mm (1.97 in): Days with 50 mm or more rain39919452
100 mm (3.94 in): Days with 100 mm or more rain13119131
10 cm (3.9 in): Days with 10 cm or more snowfall3119101
25 cm (9.8 in): Days with 25 cm or more snowfall1119291

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1906.

Download the Data

  • Data for Flint 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).