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Built 2026-10-19 (19 October 2026)

Howell Threshold Days by Year (ASN00056060)

4 fixed thresholds counted per year at Howell (ASN00056060): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Howell Thresholds

  • Howell: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1921 with 46.
  • Howell: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1921 with 19.
  • Howell: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1921 with 7.
  • Howell: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1906 with 1.
  • 4 fixed thresholds have at least one qualifying day at Howell.
33 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Howell Days per year at Howell with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 46 in 1921. 02040601902: 171903: 341904: 231905: 241906: 271907: 221908: 201909: 251910: 291911: 291912: 241913: 281916: 351917: 361918: 161919: 91920: 251921: 461928: 291929: 181930: 301931: 341932: 211933: 331934: 241935: 231936: 261937: 281938: 241939: 251940: 191941: 261942: 21190219061910191619201930193419381942
Days per year at Howell with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 46 in 1921.
Days with 10 mm (0.39 in) or more of precipitation per year at Howell
YearDaysDecade average
19021724
19033424
19042324
19052424
19062724
19072224
19082024
19092524
19102925.8
19112925.8
19122425.8
19132825.8
19163525.8
19173625.8
19181625.8
1919925.8
19202529.5
19214629.5
19282929.5
19291829.5
19303026.8
19313426.8
19322126.8
19333326.8
19342426.8
19352326.8
19362626.8
19372826.8
19382426.8
19392526.8
19401922
19412622
19422122
First to last qualifying date each year at Howell For each year, a bar from the first to the last day at Howell meeting 10 mm (0.39 in). 1902: 1 January 1902 to 6 December 19021903: 26 January 1903 to 21 December 19031904: 4 January 1904 to 18 December 19041905: 16 January 1905 to 29 December 19051906: 10 January 1906 to 24 December 19061907: 4 January 1907 to 31 October 19071908: 8 January 1908 to 23 November 19081909: 20 January 1909 to 23 December 19091910: 11 January 1910 to 12 December 19101911: 4 January 1911 to 30 December 19111912: 5 January 1912 to 21 November 19121913: 1 January 1913 to 19 December 19131916: 21 February 1916 to 14 December 19161917: 1 January 1917 to 25 December 19171918: 2 January 1918 to 16 December 19181919: 20 January 1919 to 27 December 19191920: 1 January 1920 to 8 December 19201921: 8 January 1921 to 31 December 19211928: 3 January 1928 to 15 December 19281929: 12 January 1929 to 11 December 19291930: 24 January 1930 to 18 December 19301931: 18 January 1931 to 23 December 19311932: 4 January 1932 to 25 November 19321933: 20 January 1933 to 21 December 19331934: 4 January 1934 to 30 December 19341935: 5 January 1935 to 8 December 19351936: 11 January 1936 to 26 December 19361937: 1 January 1937 to 29 December 19371938: 12 January 1938 to 28 November 19381939: 1 January 1939 to 27 December 19391940: 7 January 1940 to 31 December 19401941: 4 January 1941 to 21 November 19411942: 26 January 1942 to 31 December 19421902190719121919193019351940JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Howell meeting 10 mm (0.39 in).
First to last qualifying date each year at Howell
YearFirst dateLast date
19021902-01-011902-12-06
19031903-01-261903-12-21
19041904-01-041904-12-18
19051905-01-161905-12-29
19061906-01-101906-12-24
19071907-01-041907-10-31
19081908-01-081908-11-23
19091909-01-201909-12-23
19101910-01-111910-12-12
19111911-01-041911-12-30
19121912-01-051912-11-21
19131913-01-011913-12-19
19161916-02-211916-12-14
19171917-01-011917-12-25
19181918-01-021918-12-16
19191919-01-201919-12-27
19201920-01-011920-12-08
19211921-01-081921-12-31
19281928-01-031928-12-15
19291929-01-121929-12-11
19301930-01-241930-12-18
19311931-01-181931-12-23
19321932-01-041932-11-25
19331933-01-201933-12-21
19341934-01-041934-12-30
19351935-01-051935-12-08
19361936-01-111936-12-26
19371937-01-011937-12-29
19381938-01-121938-11-28
19391939-01-011939-12-27
19401940-01-071940-12-31
19411941-01-041941-11-21
19421942-01-261942-12-31

Every Fixed Threshold

Fixed thresholds at Howell
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3346192121
25 mm (0.98 in): Days with 25 mm or more rain3319192110
50 mm (1.97 in): Days with 50 mm or more rain24719214
100 mm (3.94 in): Days with 100 mm or more rain5119061

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

  • Data for Howell 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).