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Built 2026-10-18 (18 October 2026)

Snowball Threshold Days by Year

4 fixed thresholds counted per year at Snowball (ASN00069062): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Snowball Thresholds

  • Snowball: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1900 with 41.
  • Snowball: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 1899 with 14.
  • Snowball: days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1914 with 8.
  • Snowball: days with 100 mm (3.94 in) or more of precipitation in 16 years, most in 1988 with 3.
  • 4 fixed thresholds have at least one qualifying day at Snowball.
66 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Snowball Days per year at Snowball with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1900. 02040601897: 261898: 181899: 341900: 411901: 211902: 281903: 301904: 241905: 201906: 231907: 221908: 191909: 191910: 261911: 301912: 251913: 281914: 311915: 131916: 351917: 311918: 291919: 261920: 321963: 351982: 131983: 321984: 381985: 311986: 271987: 231988: 351989: 291990: 241991: 261992: 351993: 261994: 221995: 221996: 251997: 221998: 241999: 282000: 262001: 222002: 222003: 252004: 212005: 302006: 142007: 332010: 362011: 282012: 312013: 232015: 232016: 222017: 242018: 172019: 122020: 302021: 302022: 382023: 242024: 222025: 201897190419111918198519921999200620162023
Days per year at Snowball with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1900.
Days with 10 mm (0.39 in) or more of precipitation per year at Snowball
YearDaysDecade average
18972626
18981826
18993426
19004124.7
19012124.7
19022824.7
19033024.7
19042424.7
19052024.7
19062324.7
19072224.7
19081924.7
19091924.7
19102627.4
19113027.4
19122527.4
19132827.4
19143127.4
19151327.4
19163527.4
19173127.4
19182927.4
19192627.4
19203232
19633535
19821328.5
19833228.5
19843828.5
19853128.5
19862728.5
19872328.5
19883528.5
19892928.5
19902425.4
19912625.4
19923525.4
19932625.4
19942225.4
19952225.4
19962525.4
19972225.4
19982425.4
19992825.4
20002624.1
20012224.1
20022224.1
20032524.1
20042124.1
20053024.1
20061424.1
20073324.1
20103624
20112824
20123124
20132324
20152324
20162224
20172424
20181724
20191224
20203027.3
20213027.3
20223827.3
20232427.3
20242227.3
20252027.3
First to last qualifying date each year at Snowball For each year, a bar from the first to the last day at Snowball meeting 10 mm (0.39 in). 1897: 10 January 1897 to 24 December 18971898: 10 February 1898 to 27 December 18981899: 21 January 1899 to 27 December 18991900: 5 January 1900 to 29 December 19001901: 9 January 1901 to 4 November 19011902: 1 January 1902 to 18 December 19021903: 5 February 1903 to 23 December 19031904: 3 January 1904 to 18 December 19041905: 4 January 1905 to 31 December 19051906: 8 January 1906 to 31 December 19061907: 2 January 1907 to 16 December 19071908: 25 January 1908 to 24 November 19081909: 20 January 1909 to 23 December 19091910: 5 January 1910 to 19 December 19101911: 4 January 1911 to 31 December 19111912: 9 February 1912 to 26 December 19121913: 20 February 1913 to 26 December 19131914: 26 February 1914 to 30 December 19141915: 8 January 1915 to 30 December 19151916: 29 January 1916 to 14 December 19161917: 1 January 1917 to 31 December 19171918: 11 January 1918 to 10 November 19181919: 18 February 1919 to 30 December 19191920: 4 January 1920 to 28 December 19201963: 16 January 1963 to 17 December 19631982: 13 January 1982 to 28 September 19821983: 2 January 1983 to 27 December 19831984: 1 January 1984 to 31 December 19841985: 19 March 1985 to 5 December 19851986: 17 January 1986 to 15 December 19861987: 4 January 1987 to 29 December 19871988: 10 January 1988 to 31 December 19881989: 1 January 1989 to 9 December 19891990: 9 January 1990 to 22 October 19901991: 1 January 1991 to 14 December 19911992: 1 January 1992 to 23 December 19921993: 4 January 1993 to 21 November 19931994: 6 February 1994 to 23 December 19941995: 5 January 1995 to 6 December 19951996: 2 January 1996 to 27 December 19961997: 7 January 1997 to 9 December 19971998: 25 January 1998 to 14 December 19981999: 7 January 1999 to 29 December 19992000: 27 January 2000 to 19 December 20002001: 6 January 2001 to 8 December 20012002: 16 January 2002 to 23 December 20022003: 10 February 2003 to 21 December 20032004: 22 January 2004 to 25 December 20042005: 21 January 2005 to 29 November 20052006: 12 January 2006 to 24 December 20062007: 19 January 2007 to 17 December 20072010: 14 January 2010 to 27 December 20102011: 10 January 2011 to 25 December 20112012: 30 January 2012 to 25 December 20122013: 14 January 2013 to 6 December 20132015: 10 January 2015 to 14 November 20152016: 4 January 2016 to 28 December 20162017: 6 January 2017 to 17 December 20172018: 14 January 2018 to 22 December 20182019: 6 January 2019 to 9 October 20192020: 21 January 2020 to 5 November 20202021: 4 January 2021 to 11 December 20212022: 6 January 2022 to 12 December 20222023: 4 January 2023 to 27 December 20232024: 3 January 2024 to 7 December 20242025: 7 January 2025 to 11 September 202518971906191519841993200220132023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Snowball meeting 10 mm (0.39 in).
First to last qualifying date each year at Snowball
YearFirst dateLast date
18971897-01-101897-12-24
18981898-02-101898-12-27
18991899-01-211899-12-27
19001900-01-051900-12-29
19011901-01-091901-11-04
19021902-01-011902-12-18
19031903-02-051903-12-23
19041904-01-031904-12-18
19051905-01-041905-12-31
19061906-01-081906-12-31
19071907-01-021907-12-16
19081908-01-251908-11-24
19091909-01-201909-12-23
19101910-01-051910-12-19
19111911-01-041911-12-31
19121912-02-091912-12-26
19131913-02-201913-12-26
19141914-02-261914-12-30
19151915-01-081915-12-30
19161916-01-291916-12-14
19171917-01-011917-12-31
19181918-01-111918-11-10
19191919-02-181919-12-30
19201920-01-041920-12-28
19631963-01-161963-12-17
19821982-01-131982-09-28
19831983-01-021983-12-27
19841984-01-011984-12-31
19851985-03-191985-12-05
19861986-01-171986-12-15
19871987-01-041987-12-29
19881988-01-101988-12-31
19891989-01-011989-12-09
19901990-01-091990-10-22
19911991-01-011991-12-14
19921992-01-011992-12-23
19931993-01-041993-11-21
19941994-02-061994-12-23
19951995-01-051995-12-06
19961996-01-021996-12-27
19971997-01-071997-12-09
19981998-01-251998-12-14
19991999-01-071999-12-29
20002000-01-272000-12-19
20012001-01-062001-12-08
20022002-01-162002-12-23
20032003-02-102003-12-21
20042004-01-222004-12-25
20052005-01-212005-11-29
20062006-01-122006-12-24
20072007-01-192007-12-17
20102010-01-142010-12-27
20112011-01-102011-12-25
20122012-01-302012-12-25
20132013-01-142013-12-06
20152015-01-102015-11-14
20162016-01-042016-12-28
20172017-01-062017-12-17
20182018-01-142018-12-22
20192019-01-062019-10-09
20202020-01-212020-11-05
20212021-01-042021-12-11
20222022-01-062022-12-12
20232023-01-042023-12-27
20242024-01-032024-12-07
20252025-01-072025-09-11

Every Fixed Threshold

Fixed thresholds at Snowball
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain6641190020
25 mm (0.98 in): Days with 25 mm or more rain661418999
50 mm (1.97 in): Days with 50 mm or more rain56819143
100 mm (3.94 in): Days with 100 mm or more rain16319881

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

  • Data for Snowball 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).