Built 2026-10-19 (19 October 2026)

Charles City Threshold Days by Year (USC00131402)

18 fixed thresholds counted per year at Charles City (USC00131402): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Charles City Thresholds

  • Charles City: days with a maximum temperature at or above 30 C (86 F) in 86 years, most in 1988 with 72.
  • Charles City: days with a maximum temperature at or below 0 C (32 F) in 86 years, most in 1978 with 95.
  • Charles City: nights with a minimum temperature at or below 0 C (32 F) in 86 years, most in 1988 with 180.
  • Charles City: nights with a minimum temperature at or below -10 C (14 F) in 86 years, most in 1978 with 88.
  • 18 fixed thresholds have at least one qualifying day at Charles City.
86 years with a qualifying day
Days at or above 30 C (86 F) per year at Charles City Days per year at Charles City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 72 in 1988. 0204060801893: 401895: 321896: 331898: 361899: 381900: 411901: 541903: 161949: 441950: 141951: 81952: 421953: 421954: 431955: 601956: 431957: 361958: 231959: 471960: 331961: 361962: 341963: 431964: 541965: 241966: 371967: 151968: 291969: 271970: 491971: 471972: 391973: 461974: 361975: 541976: 531977: 451978: 431979: 271980: 511981: 231982: 201983: 611984: 381985: 371986: 251987: 521988: 721989: 401990: 231991: 451992: 121993: 61994: 171995: 391996: 221997: 231998: 371999: 332000: 372001: 522002: 432003: 332004: 92005: 442006: 342007: 342008: 112009: 102010: 312011: 302012: 512013: 262014: 82015: 132016: 152017: 222018: 272019: 162020: 282021: 312022: 222023: 382024: 212025: 182026: 291893195019591968197719861995200420132022
Days per year at Charles City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 72 in 1988.
Days at or above 30 C (86 F) per year at Charles City
YearDaysDecade average
18934035.8
18953235.8
18963335.8
18983635.8
18993835.8
19004137
19015437
19031637
19494444
19501435.8
1951835.8
19524235.8
19534235.8
19544335.8
19556035.8
19564335.8
19573635.8
19582335.8
19594735.8
19603333.2
19613633.2
19623433.2
19634333.2
19645433.2
19652433.2
19663733.2
19671533.2
19682933.2
19692733.2
19704943.9
19714743.9
19723943.9
19734643.9
19743643.9
19755443.9
19765343.9
19774543.9
19784343.9
19792743.9
19805141.9
19812341.9
19822041.9
19836141.9
19843841.9
19853741.9
19862541.9
19875241.9
19887241.9
19894041.9
19902325.7
19914525.7
19921225.7
1993625.7
19941725.7
19953925.7
19962225.7
19972325.7
19983725.7
19993325.7
20003730.7
20015230.7
20024330.7
20033330.7
2004930.7
20054430.7
20063430.7
20073430.7
20081130.7
20091030.7
20103123.9
20113023.9
20125123.9
20132623.9
2014823.9
20151323.9
20161523.9
20172223.9
20182723.9
20191623.9
20202826.7
20213126.7
20222226.7
20233826.7
20242126.7
20251826.7
20262926.7
First to last qualifying date each year at Charles City For each year, a bar from the first to the last day at Charles City meeting 30 C (86 F). 1893: 12 June 1893 to 18 September 18931895: 29 March 1895 to 22 September 18951896: 15 April 1896 to 29 August 18961898: 3 June 1898 to 29 September 18981899: 4 June 1899 to 6 September 18991900: 11 May 1900 to 9 September 19001901: 29 April 1901 to 6 September 19011903: 16 June 1903 to 25 August 19031949: 25 April 1949 to 26 August 19491950: 21 June 1950 to 24 August 19501951: 7 July 1951 to 30 August 19511952: 29 April 1952 to 30 September 19521953: 25 May 1953 to 15 October 19531954: 9 June 1954 to 18 September 19541955: 2 May 1955 to 18 September 19551956: 12 May 1956 to 12 October 19561957: 6 June 1957 to 1 September 19571958: 4 June 1958 to 3 September 19581959: 2 May 1959 to 8 September 19591960: 22 April 1960 to 8 September 19601961: 12 May 1961 to 10 September 19611962: 5 May 1962 to 12 September 19621963: 8 May 1963 to 7 October 19631964: 16 April 1964 to 9 September 19641965: 2 May 1965 to 18 August 19651966: 26 May 1966 to 1 September 19661967: 18 May 1967 to 16 August 19671968: 30 April 1968 to 24 August 19681969: 27 May 1969 to 31 August 19691970: 27 April 1970 to 20 September 19701971: 4 June 1971 to 30 September 19711972: 17 May 1972 to 17 September 19721973: 7 June 1973 to 1 September 19731974: 14 June 1974 to 26 September 19741975: 18 May 1975 to 13 October 19751976: 6 June 1976 to 3 October 19761977: 27 April 1977 to 6 September 19771978: 25 May 1978 to 12 September 19781979: 17 May 1979 to 5 September 19791980: 21 April 1980 to 12 September 19801981: 27 April 1981 to 11 September 19811982: 24 June 1982 to 11 September 19821983: 10 June 1983 to 2 October 19831984: 1 June 1984 to 21 September 19841985: 17 April 1985 to 19 September 19851986: 31 May 1986 to 26 September 19861987: 20 April 1987 to 21 August 19871988: 14 May 1988 to 18 September 19881989: 29 May 1989 to 23 August 19891990: 10 June 1990 to 5 October 19901991: 6 April 1991 to 9 September 19911992: 30 April 1992 to 10 August 19921993: 3 July 1993 to 26 August 19931994: 18 April 1994 to 15 September 19941995: 16 June 1995 to 31 August 19951996: 17 May 1996 to 21 August 19961997: 13 June 1997 to 7 October 19971998: 14 May 1998 to 26 September 19981999: 27 May 1999 to 4 September 19992000: 4 May 2000 to 18 September 20002001: 14 May 2001 to 26 August 20012002: 15 April 2002 to 11 September 20022003: 14 April 2003 to 12 September 20032004: 16 April 2004 to 26 August 20042005: 6 June 2005 to 4 October 20052006: 27 May 2006 to 3 October 20062007: 29 April 2007 to 6 October 20072008: 7 June 2008 to 1 September 20082009: 24 April 2009 to 14 August 20092010: 24 May 2010 to 9 October 20102011: 10 April 2011 to 12 September 20112012: 18 May 2012 to 11 September 20122013: 14 May 2013 to 10 September 20132014: 30 May 2014 to 4 September 20142015: 9 June 2015 to 16 September 20152016: 6 May 2016 to 6 September 20162017: 2 June 2017 to 24 September 20172018: 24 May 2018 to 20 September 20182019: 31 May 2019 to 30 September 20192020: 1 June 2020 to 6 September 20202021: 1 May 2021 to 19 September 20212022: 9 May 2022 to 20 September 20222023: 30 May 2023 to 2 October 20232024: 18 May 2024 to 5 October 20242025: 2 June 2025 to 3 October 20252026: 15 May 2026 to 13 October 202618931952196319741985199620072018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Charles City meeting 30 C (86 F).
First to last qualifying date each year at Charles City
YearFirst dateLast date
18931893-06-121893-09-18
18951895-03-291895-09-22
18961896-04-151896-08-29
18981898-06-031898-09-29
18991899-06-041899-09-06
19001900-05-111900-09-09
19011901-04-291901-09-06
19031903-06-161903-08-25
19491949-04-251949-08-26
19501950-06-211950-08-24
19511951-07-071951-08-30
19521952-04-291952-09-30
19531953-05-251953-10-15
19541954-06-091954-09-18
19551955-05-021955-09-18
19561956-05-121956-10-12
19571957-06-061957-09-01
19581958-06-041958-09-03
19591959-05-021959-09-08
19601960-04-221960-09-08
19611961-05-121961-09-10
19621962-05-051962-09-12
19631963-05-081963-10-07
19641964-04-161964-09-09
19651965-05-021965-08-18
19661966-05-261966-09-01
19671967-05-181967-08-16
19681968-04-301968-08-24
19691969-05-271969-08-31
19701970-04-271970-09-20
19711971-06-041971-09-30
19721972-05-171972-09-17
19731973-06-071973-09-01
19741974-06-141974-09-26
19751975-05-181975-10-13
19761976-06-061976-10-03
19771977-04-271977-09-06
19781978-05-251978-09-12
19791979-05-171979-09-05
19801980-04-211980-09-12
19811981-04-271981-09-11
19821982-06-241982-09-11
19831983-06-101983-10-02
19841984-06-011984-09-21
19851985-04-171985-09-19
19861986-05-311986-09-26
19871987-04-201987-08-21
19881988-05-141988-09-18
19891989-05-291989-08-23
19901990-06-101990-10-05
19911991-04-061991-09-09
19921992-04-301992-08-10
19931993-07-031993-08-26
19941994-04-181994-09-15
19951995-06-161995-08-31
19961996-05-171996-08-21
19971997-06-131997-10-07
19981998-05-141998-09-26
19991999-05-271999-09-04
20002000-05-042000-09-18
20012001-05-142001-08-26
20022002-04-152002-09-11
20032003-04-142003-09-12
20042004-04-162004-08-26
20052005-06-062005-10-04
20062006-05-272006-10-03
20072007-04-292007-10-06
20082008-06-072008-09-01
20092009-04-242009-08-14
20102010-05-242010-10-09
20112011-04-102011-09-12
20122012-05-182012-09-11
20132013-05-142013-09-10
20142014-05-302014-09-04
20152015-06-092015-09-16
20162016-05-062016-09-06
20172017-06-022017-09-24
20182018-05-242018-09-20
20192019-05-312019-09-30
20202020-06-012020-09-06
20212021-05-012021-09-19
20222022-05-092022-09-20
20232023-05-302023-10-02
20242024-05-182024-10-05
20252025-06-022025-10-03
20262026-05-152026-10-13

Every Fixed Threshold

Fixed thresholds at Charles City
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days8672198829
35 C (95 F): Days512119015
40 C (104 F): Days2419011
90 F (32.2 C): Days844719884
100 F (37.8 C): Days71219011
0 C (32 F): Ice days (max8695197833
0 C (32 F): Frost days (min86180198885
-10 C (14 F): Days with min8688197830
-20 C (-4 F): Days with min863919637
-30 C (-22 F): Days with min40718991
20 C (68 F): Tropical nights (min8630200220
25 C (77 F): Days with min7520023
10 mm (0.39 in): Days with 10 mm or more rain8348201830
25 mm (0.98 in): Days with 25 mm or more rain8220201810
50 mm (1.97 in): Days with 50 mm or more rain67820161
100 mm (3.94 in): Days with 100 mm or more rain7219991
10 cm (3.9 in): Days with 10 cm or more snowfall68719504
25 cm (9.8 in): Days with 25 cm or more snowfall5119511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

  • Data for Charles City 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).