Built 2026-10-19 (19 October 2026)

Tower 2S Threshold Days by Year (USC00218311)

19 fixed thresholds counted per year at Tower 2S (USC00218311): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tower 2S Thresholds

  • Tower 2S: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1899 with 43.
  • Tower 2S: days with 25 mm (0.98 in) or more of precipitation in 88 years, most in 1946 with 11.
  • Tower 2S: days with 10 cm (3.9 in) or more of snowfall in 73 years, most in 1950 with 12.
  • Tower 2S: days with a maximum temperature at or below 0 C (32 F) in 67 years, most in 2022 with 126.
  • 19 fixed thresholds have at least one qualifying day at Tower 2S.
64 years with a qualifying day
Days at or above 30 C (86 F) per year at Tower 2S Days per year at Tower 2S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1988. 0102030401896: 251897: 221898: 181899: 51900: 271901: 231902: 51903: 101963: 71964: 131965: 31966: 101967: 31969: 51970: 181971: 71972: 41973: 51974: 101975: 141976: 171977: 111978: 121979: 41980: 141981: 71982: 31983: 171984: 81986: 101987: 161988: 331989: 181990: 31991: 171992: 21993: 21994: 21995: 131996: 71997: 71998: 41999: 82000: 72001: 222002: 182003: 212005: 162006: 142007: 162008: 52011: 92012: 132013: 92014: 22015: 72016: 42020: 102021: 242022: 42023: 112024: 32025: 92026: 181896190319701977198419921999200720162026
Days per year at Tower 2S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1988.
Days at or above 30 C (86 F) per year at Tower 2S
YearDaysDecade average
18962517.5
18972217.5
18981817.5
1899517.5
19002716.3
19012316.3
1902516.3
19031016.3
196376.8
1964136.8
196536.8
1966106.8
196736.8
196956.8
19701810.2
1971710.2
1972410.2
1973510.2
19741010.2
19751410.2
19761710.2
19771110.2
19781210.2
1979410.2
19801414
1981714
1982314
19831714
1984814
19861014
19871614
19883314
19891814
199036.5
1991176.5
199226.5
199326.5
199426.5
1995136.5
199676.5
199776.5
199846.5
199986.5
2000714.9
20012214.9
20021814.9
20032114.9
20051614.9
20061414.9
20071614.9
2008514.9
201197.3
2012137.3
201397.3
201427.3
201577.3
201647.3
20201011.3
20212411.3
2022411.3
20231111.3
2024311.3
2025911.3
20261811.3
First to last qualifying date each year at Tower 2S For each year, a bar from the first to the last day at Tower 2S meeting 30 C (86 F). 1896: 6 May 1896 to 9 August 18961897: 13 June 1897 to 28 September 18971898: 17 June 1898 to 2 September 18981899: 25 June 1899 to 18 July 18991900: 12 May 1900 to 31 August 19001901: 13 June 1901 to 20 August 19011902: 5 July 1902 to 29 July 19021903: 25 May 1903 to 24 July 19031963: 24 June 1963 to 23 July 19631964: 21 May 1964 to 3 August 19641965: 22 July 1965 to 11 August 19651966: 28 June 1966 to 13 July 19661967: 20 July 1967 to 23 July 19671969: 27 May 1969 to 13 July 19691970: 6 June 1970 to 14 August 19701971: 27 June 1971 to 4 September 19711972: 18 May 1972 to 31 July 19721973: 7 July 1973 to 30 August 19731974: 29 June 1974 to 19 July 19741975: 29 June 1975 to 25 August 19751976: 4 June 1976 to 8 September 19761977: 11 April 1977 to 24 July 19771978: 19 May 1978 to 7 September 19781979: 10 July 1979 to 22 July 19791980: 22 April 1980 to 15 July 19801981: 5 July 1981 to 12 July 19811982: 6 July 1982 to 6 August 19821983: 23 June 1983 to 3 September 19831984: 13 July 1984 to 20 September 19841986: 28 May 1986 to 25 July 19861987: 31 May 1987 to 16 August 19871988: 30 May 1988 to 16 August 19881989: 20 June 1989 to 11 August 19891990: 26 June 1990 to 17 August 19901991: 15 May 1991 to 30 August 19911992: 21 May 1992 to 12 June 19921993: 12 August 1993 to 26 August 19931994: 21 May 1994 to 15 June 19941995: 17 June 1995 to 17 August 19951996: 11 June 1996 to 7 August 19961997: 11 June 1997 to 3 August 19971998: 19 May 1998 to 6 September 19981999: 30 May 1999 to 28 August 19992000: 6 May 2000 to 19 September 20002001: 26 June 2001 to 9 August 20012002: 31 May 2002 to 9 September 20022003: 17 June 2003 to 9 September 20032005: 20 June 2005 to 12 September 20052006: 29 May 2006 to 1 August 20062007: 10 May 2007 to 6 September 20072008: 7 July 2008 to 2 September 20082011: 2 July 2011 to 12 September 20112012: 19 May 2012 to 30 August 20122013: 26 June 2013 to 29 August 20132014: 30 May 2014 to 22 July 20142015: 24 July 2015 to 12 October 20152016: 20 June 2016 to 22 July 20162020: 17 June 2020 to 25 July 20202021: 5 June 2021 to 21 August 20212022: 20 June 2022 to 19 July 20222023: 1 June 2023 to 6 September 20232024: 28 July 2024 to 17 September 20242025: 12 May 2025 to 28 July 20252026: 26 May 2026 to 31 July 202618961963197219801989199720062016JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tower 2S meeting 30 C (86 F).
First to last qualifying date each year at Tower 2S
YearFirst dateLast date
18961896-05-061896-08-09
18971897-06-131897-09-28
18981898-06-171898-09-02
18991899-06-251899-07-18
19001900-05-121900-08-31
19011901-06-131901-08-20
19021902-07-051902-07-29
19031903-05-251903-07-24
19631963-06-241963-07-23
19641964-05-211964-08-03
19651965-07-221965-08-11
19661966-06-281966-07-13
19671967-07-201967-07-23
19691969-05-271969-07-13
19701970-06-061970-08-14
19711971-06-271971-09-04
19721972-05-181972-07-31
19731973-07-071973-08-30
19741974-06-291974-07-19
19751975-06-291975-08-25
19761976-06-041976-09-08
19771977-04-111977-07-24
19781978-05-191978-09-07
19791979-07-101979-07-22
19801980-04-221980-07-15
19811981-07-051981-07-12
19821982-07-061982-08-06
19831983-06-231983-09-03
19841984-07-131984-09-20
19861986-05-281986-07-25
19871987-05-311987-08-16
19881988-05-301988-08-16
19891989-06-201989-08-11
19901990-06-261990-08-17
19911991-05-151991-08-30
19921992-05-211992-06-12
19931993-08-121993-08-26
19941994-05-211994-06-15
19951995-06-171995-08-17
19961996-06-111996-08-07
19971997-06-111997-08-03
19981998-05-191998-09-06
19991999-05-301999-08-28
20002000-05-062000-09-19
20012001-06-262001-08-09
20022002-05-312002-09-09
20032003-06-172003-09-09
20052005-06-202005-09-12
20062006-05-292006-08-01
20072007-05-102007-09-06
20082008-07-072008-09-02
20112011-07-022011-09-12
20122012-05-192012-08-30
20132013-06-262013-08-29
20142014-05-302014-07-22
20152015-07-242015-10-12
20162016-06-202016-07-22
20202020-06-172020-07-25
20212021-06-052021-08-21
20222022-06-202022-07-19
20232023-06-012023-09-06
20242024-07-282024-09-17
20252025-05-122025-07-28
20262026-05-262026-07-31

Every Fixed Threshold

Fixed thresholds at Tower 2S
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days6433198818
35 C (95 F): Days17619011
90 F (32.2 C): Days521519883
100 F (37.8 C): Days2219011
0 C (32 F): Ice days (max67126202260
0 C (32 F): Frost days (min642441976133
-10 C (14 F): Days with min64135189765
-20 C (-4 F): Days with min6486197838
-30 C (-22 F): Days with min6440201418
-40 C (-40 F): Days with min36919821
20 C (68 F): Tropical nights (min24519011
25 C (77 F): Days with min1119011
10 mm (0.39 in): Days with 10 mm or more rain9143189921
25 mm (0.98 in): Days with 25 mm or more rain881119467
50 mm (1.97 in): Days with 50 mm or more rain53519782
100 mm (3.94 in): Days with 100 mm or more rain5119731
200 mm (7.87 in): Days with 200 mm or more rain1120071
10 cm (3.9 in): Days with 10 cm or more snowfall731219503
25 cm (9.8 in): Days with 25 cm or more snowfall20219751

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

  • Data for Tower 2S 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).