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Charles City Weather Records (USC00131402)

Record envelope, standing records and threshold days for Charles City (USC00131402), Iowa, United States, with 134 years of record.

Key Facts for Charles City

  • Charles City (USC00131402) is a weather station in Iowa, United States at 43.06 latitude and -92.67 longitude, 303 m (993 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Charles City still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Charles City set a daily record high maximum temperature of 30.6 C (87.1 F) on 11 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Iowa, United States, 43.06 latitude, -92.67 longitude.
  • Elevation: 303 m (993 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

8 days at or beyond a record
Daily record high and record low at Charles City, with 2026 drawn through them The band shows the record high and record low for each calendar day at Charles City. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Charles City. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Charles City, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.2 C (63.0 F)-36.7 C (-34.1 F)8.3 C (46.9 F)-28.9 C (-20.0 F)
Feb23.9 C (75.0 F)-35.6 C (-32.1 F)16.1 C (61.0 F)-17.2 C (1.0 F)
Mar30.0 C (86.0 F)-35.6 C (-32.1 F)27.8 C (82.0 F)-16.1 C (3.0 F)
Apr34.4 C (93.9 F)-16.1 C (3.0 F)27.8 C (82.0 F)-5.0 C (23.0 F)
May36.7 C (98.1 F)-6.1 C (21.0 F)31.1 C (88.0 F)-1.1 C (30.0 F)
Jun38.9 C (102.0 F)1.1 C (34.0 F)31.7 C (89.1 F)8.3 C (46.9 F)
Jul42.2 C (108.0 F)3.9 C (39.0 F)33.3 C (91.9 F)12.8 C (55.0 F)
Aug40.0 C (104.0 F)2.2 C (36.0 F)30.0 C (86.0 F)11.1 C (52.0 F)
Sep37.2 C (99.0 F)-7.2 C (19.0 F)31.1 C (88.0 F)7.8 C (46.0 F)
Oct35.0 C (95.0 F)-12.8 C (9.0 F)30.6 C (87.1 F)5.0 C (41.0 F)
Nov25.6 C (78.1 F)-25.6 C (-14.1 F)n/an/a
Dec20.0 C (68.0 F)-33.9 C (-29.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Charles City by the year they were set 1,464 records at Charles City still stand. 1896 holds the most, with 39. 0102030401893: 321894: 231895: 381896: 391897: 281898: 261899: 321900: 171901: 351903: 111904: 251948: 81949: 101950: 191951: 241952: 131953: 201954: 101955: 261956: 161957: 51958: 111959: 171960: 141961: 121962: 201963: 241964: 211965: 221966: 151967: 181968: 171969: 131970: 171971: 91972: 121973: 101974: 151975: 151976: 141977: 191978: 101979: 91980: 71981: 161982: 131983: 221984: 151985: 151986: 121987: 151988: 281989: 201990: 141991: 241992: 211993: 111994: 121995: 61996: 111997: 81998: 151999: 92000: 302001: 212002: 212003: 102004: 132005: 132006: 162007: 172008: 62009: 132010: 112011: 112012: 292013: 102014: 122015: 102016: 52017: 172018: 172019: 112020: 172021: 142022: 62023: 142024: 142025: 112026: 101893190319551964197319821991200020092018
1,464 records at Charles City still stand. 1896 holds the most, with 39.
Standing records at Charles City by the year they were set
Year setStanding records
189332
189423
189538
189639
189728
189826
189932
190017
190135
190311
190425
19488
194910
195019
195124
195213
195320
195410
195526
195616
19575
195811
195917
196014
196112
196220
196324
196421
196522
196615
196718
196817
196913
197017
19719
197212
197310
197415
197515
197614
197719
197810
19799
19807
198116
198213
198322
198415
198515
198612
198715
198828
198920
199014
199124
199221
199311
199412
19956
199611
19978
199815
19999
200030
200121
200221
200310
200413
200513
200616
200717
20086
200913
201011
201111
201229
201310
201412
201510
20165
201717
201817
201911
202017
202114
20226
202314
202414
202511
202610

All-Time Record Progression

5 new records
When Charles City set new all-time records 5 all-time records were set at Charles City between 25 September 1972 and 16 January 2009. Each dot is a new record. Record daily precipitationRecord snow depthRecord low minimum temperature25 September 1972: Record daily precipitation 131.6 mm (5.2 in)12 February 1979: Record snow depth 83.8 cm (33.0 in)10 August 1980: Record daily precipitation 160.0 mm (6.3 in)21 July 1999: Record daily precipitation 168.9 mm (6.6 in)16 January 2009: Record low minimum temperature -36.7 C (-34.1 F)19751980198519901995200020052010
5 all-time records were set at Charles City between 25 September 1972 and 16 January 2009. Each dot is a new record.
When Charles City set new all-time records
DateKindDetail
1972-09-25Record daily precipitationRecord daily precipitation 131.6 mm (5.2 in)
1979-02-12Record snow depthRecord snow depth 83.8 cm (33.0 in)
1980-08-10Record daily precipitationRecord daily precipitation 160.0 mm (6.3 in)
1999-07-21Record daily precipitationRecord daily precipitation 168.9 mm (6.6 in)
2009-01-16Record low minimum temperatureRecord low minimum temperature -36.7 C (-34.1 F)

Wettest Day of Each Month

Jul: 168.9 mm (6.6 in)
Record daily precipitation for each month at Charles City The wettest day on record for each calendar month at Charles City. The most was 168.9 mm (6.6 in) on 21 July 1999. 050100150200 Jan: 35.6 mm (1.4 in), 4 January 1971 Jan Feb: 39.6 mm (1.6 in), 25 February 2007 Feb Mar: 61.2 mm (2.4 in), 26 March 2004 Mar Apr: 77.7 mm (3.1 in), 18 April 1976 Apr May: 90.2 mm (3.6 in), 10 May 1963 May Jun: 93.2 mm (3.7 in), 19 June 1904 Jun Jul: 168.9 mm (6.6 in), 21 July 1999 Jul Aug: 160.0 mm (6.3 in), 10 August 1980 Aug Sep: 161.3 mm (6.4 in), 22 September 2016 Sep Oct: 81.8 mm (3.2 in), 9 October 1970 Oct Nov: 70.6 mm (2.8 in), 1 November 1991 Nov Dec: 37.8 mm (1.5 in), 14 December 2015 Dec
The wettest day on record for each calendar month at Charles City. The most was 168.9 mm (6.6 in) on 21 July 1999.
Record daily precipitation for each month at Charles City
MonthRecord daily precipitation (mm)Date
Jan35.6 mm (1.4 in)4 January 1971
Feb39.6 mm (1.6 in)25 February 2007
Mar61.2 mm (2.4 in)26 March 2004
Apr77.7 mm (3.1 in)18 April 1976
May90.2 mm (3.6 in)10 May 1963
Jun93.2 mm (3.7 in)19 June 1904
Jul168.9 mm (6.6 in)21 July 1999
Aug160.0 mm (6.3 in)10 August 1980
Sep161.3 mm (6.4 in)22 September 2016
Oct81.8 mm (3.2 in)9 October 1970
Nov70.6 mm (2.8 in)1 November 1991
Dec37.8 mm (1.5 in)14 December 2015

Period of Record Coverage

1893 to 2026
Days with data per year at Charles City 90 years of record at Charles City, 1893 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1894, 1897, 1904, 1948, 2026. 1893: 346 of 365 days1894: 319 of 365 days1895: 346 of 365 days1896: 342 of 366 days1897: 294 of 365 days1898: 360 of 365 days1899: 363 of 365 days1900: 360 of 365 days1901: 336 of 365 days1903: 355 of 365 days1904: 302 of 366 days1948: 243 of 366 days1949: 364 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 365 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 358 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 364 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 364 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 363 of 365 days1998: 362 of 365 days1999: 363 of 365 days2000: 362 of 366 days2001: 353 of 365 days2002: 335 of 365 days2003: 342 of 365 days2004: 365 of 366 days2005: 353 of 365 days2006: 355 of 365 days2007: 355 of 365 days2008: 360 of 366 days2009: 359 of 365 days2010: 361 of 365 days2011: 355 of 365 days2012: 364 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 363 of 365 days2016: 362 of 366 days2017: 364 of 365 days2018: 364 of 365 days2019: 361 of 365 days2020: 364 of 366 days2021: 365 of 365 days2022: 364 of 365 days2023: 362 of 365 days2024: 364 of 366 days2025: 358 of 365 days2026: 284 of 365 days195019651980199520102025
90 years of record at Charles City, 1893 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1894, 1897, 1904, 1948, 2026.
Days with data per year at Charles City
YearDays with dataShare of yearComplete
189334695%Yes
189431987%No
189534695%Yes
189634293%Yes
189729481%No
189836099%Yes
189936399%Yes
190036099%Yes
190133692%Yes
190335597%Yes
190430283%No
194824366%No
1949364100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960365100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980365100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
198635898%Yes
1987365100%Yes
1988366100%Yes
1989364100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994364100%Yes
1995365100%Yes
1996366100%Yes
199736399%Yes
199836299%Yes
199936399%Yes
200036299%Yes
200135397%Yes
200233592%Yes
200334294%Yes
2004365100%Yes
200535397%Yes
200635597%Yes
200735597%Yes
200836098%Yes
200935998%Yes
201036199%Yes
201135597%Yes
201236499%Yes
2013365100%Yes
2014365100%Yes
201536399%Yes
201636299%Yes
2017364100%Yes
2018364100%Yes
201936199%Yes
202036499%Yes
2021365100%Yes
2022364100%Yes
202336299%Yes
202436499%Yes
202535898%Yes
202628478%No

Latest Records

20
Latest records at Charles City
DateStationRecordValueBeat old record byOld record stoodSignificance
11 October 2026Charles City, USdaily high max (Provisional)30.6 C (87.1 F)2.3 C (4.1 F)11 years16 of 100 (Routine)
10 October 2026Charles City, USdaily high max (Provisional)30.0 C (86.0 F)1.1 C (2.0 F)132 years41 of 100 (Notable)
1 October 2026Charles City, USdaily rain (Provisional)33.0 mm (1.3 in)4.6 mm (0.18 in)131 years44 of 100 (Notable)
1 August 2026Charles City, USdaily rain26.9 mm (1.1 in)5.6 mm (0.22 in)32 years22 of 100 (Routine)
3 July 2026Charles City, USdaily rain52.1 mm (2.1 in)7.1 mm (0.28 in)25 years21 of 100 (Routine)
30 June 2026Charles City, USdaily high min23.9 C (75.0 F)0.6 C (1.1 F)72 years32 of 100 (Routine)
29 June 2026Charles City, USdaily high min24.4 C (75.9 F)0.5 C (0.9 F)29 years19 of 100 (Routine)
10 June 2026Charles City, USdaily high min22.8 C (73.0 F)1.7 C (3.1 F)24 years21 of 100 (Routine)
31 March 2026Charles City, USdaily high max (Tie)27.2 C (81.0 F)tie40 years5 of 100 (Routine)
22 March 2026Charles City, USdaily high max27.8 C (82.0 F)6.1 C (11.0 F)32 years27 of 100 (Routine)
21 March 2026Charles City, USdaily high max27.8 C (82.0 F)6.1 C (11.0 F)72 years39 of 100 (Notable)
17 March 2026Charles City, USdaily low max (Tie)-6.7 C (19.9 F)tie32 years4 of 100 (Routine)
9 March 2026Charles City, USdaily high max18.9 C (66.0 F)0.6 C (1.1 F)4 years11 of 100 (Routine)
18 February 2026Charles City, USdaily high min4.4 C (39.9 F)0.5 C (0.9 F)44 years23 of 100 (Routine)
15 February 2026Charles City, USdaily high max14.4 C (57.9 F)2.2 C (4.0 F)44 years26 of 100 (Routine)
12 January 2026Charles City, USdaily high max8.3 C (46.9 F)2.2 C (4.0 F)22 years19 of 100 (Routine)
9 January 2026Charles City, USdaily rain15.7 mm (0.6 in)6.6 mm (0.26 in)16 years20 of 100 (Routine)
9 January 2026Charles City, USdaily high min-0.6 C (30.9 F)0.5 C (0.9 F)63 years28 of 100 (Routine)
6 January 2026Charles City, USdaily high min (Tie)-1.1 C (30.0 F)tie18 years3 of 100 (Routine)
4 December 2025Charles City, USdaily low min (Tie)-22.8 C (-9.0 F)tie34 years5 of 100 (Routine)

Climate Trend

84 complete years, 1893 to 2025
Annual mean temperature at Charles City as warming stripes, 1893 to 2025 One stripe for each of 84 complete years at Charles City, 1893 to 2025. Blue stripes are years cooler than the station's own mean of 8.1 C (46.6 F); red stripes are warmer. The coolest year was 1951, at 6.0 C (42.8 F), and the warmest was 2012, at 10.3 C (50.5 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1893: 6.1 C, -2.0 C from the station mean1895: 7.0 C, -1.1 C from the station mean1896: 8.2 C, +0.1 C from the station mean1898: 7.6 C, -0.6 C from the station mean1899: 7.4 C, -0.7 C from the station mean1900: 8.3 C, +0.1 C from the station mean1903: 7.2 C, -0.9 C from the station mean1949: 8.6 C, +0.4 C from the station mean1950: 6.3 C, -1.8 C from the station mean1951: 6.0 C, -2.1 C from the station mean1952: 8.2 C, +0.1 C from the station mean1953: 9.2 C, +1.1 C from the station mean1954: 9.5 C, +1.4 C from the station mean1955: 8.9 C, +0.7 C from the station mean1956: 8.5 C, +0.4 C from the station mean1957: 8.7 C, +0.6 C from the station mean1958: 8.3 C, +0.1 C from the station mean1959: 8.1 C, 0.0 C from the station mean1960: 8.2 C, +0.1 C from the station mean1961: 8.2 C, 0.0 C from the station mean1962: 7.6 C, -0.5 C from the station mean1963: 8.0 C, -0.1 C from the station mean1964: 8.8 C, +0.7 C from the station mean1965: 7.5 C, -0.6 C from the station mean1966: 7.5 C, -0.6 C from the station mean1967: 7.7 C, -0.5 C from the station mean1968: 8.4 C, +0.3 C from the station mean1969: 7.4 C, -0.8 C from the station mean1970: 7.6 C, -0.5 C from the station mean1971: 8.0 C, -0.2 C from the station mean1972: 7.0 C, -1.2 C from the station mean1973: 9.1 C, +0.9 C from the station mean1974: 8.2 C, 0.0 C from the station mean1975: 8.2 C, +0.1 C from the station mean1976: 8.2 C, +0.1 C from the station mean1977: 8.8 C, +0.6 C from the station mean1978: 7.1 C, -1.0 C from the station mean1979: 6.8 C, -1.4 C from the station mean1980: 8.4 C, +0.3 C from the station mean1981: 9.0 C, +0.8 C from the station mean1982: 7.3 C, -0.8 C from the station mean1983: 8.2 C, +0.1 C from the station mean1984: 8.4 C, +0.3 C from the station mean1985: 7.4 C, -0.8 C from the station mean1986: 8.4 C, +0.3 C from the station mean1987: 10.0 C, +1.9 C from the station mean1988: 7.9 C, -0.3 C from the station mean1989: 7.3 C, -0.8 C from the station mean1990: 8.9 C, +0.8 C from the station mean1991: 8.4 C, +0.3 C from the station mean1992: 8.0 C, -0.1 C from the station mean1993: 6.9 C, -1.3 C from the station mean1994: 7.6 C, -0.5 C from the station mean1995: 7.9 C, -0.3 C from the station mean1996: 6.6 C, -1.5 C from the station mean1997: 7.4 C, -0.7 C from the station mean1998: 9.9 C, +1.7 C from the station mean1999: 9.0 C, +0.8 C from the station mean2000: 8.0 C, -0.1 C from the station mean2001: 9.5 C, +1.3 C from the station mean2002: 10.1 C, +2.0 C from the station mean2003: 8.7 C, +0.6 C from the station mean2004: 8.9 C, +0.8 C from the station mean2005: 9.3 C, +1.2 C from the station mean2006: 9.8 C, +1.7 C from the station mean2007: 8.3 C, +0.2 C from the station mean2008: 6.6 C, -1.5 C from the station mean2009: 7.2 C, -0.9 C from the station mean2010: 8.2 C, 0.0 C from the station mean2011: 8.1 C, -0.1 C from the station mean2012: 10.3 C, +2.1 C from the station mean2013: 7.1 C, -1.1 C from the station mean2014: 6.1 C, -2.0 C from the station mean2015: 8.6 C, +0.4 C from the station mean2016: 9.2 C, +1.1 C from the station mean2017: 8.7 C, +0.6 C from the station mean2018: 7.5 C, -0.7 C from the station mean2019: 7.1 C, -1.0 C from the station mean2020: 8.4 C, +0.3 C from the station mean2021: 9.0 C, +0.9 C from the station mean2022: 7.3 C, -0.8 C from the station mean2023: 9.3 C, +1.2 C from the station mean2024: 9.8 C, +1.7 C from the station mean2025: 8.7 C, +0.5 C from the station mean18931900191019201930194019501960197019801990200020102020
One stripe for each of 84 complete years at Charles City, 1893 to 2025. Blue stripes are years cooler than the station's own mean of 8.1 C (46.6 F); red stripes are warmer. The coolest year was 1951, at 6.0 C (42.8 F), and the warmest was 2012, at 10.3 C (50.5 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Charles City as warming stripes, 1893 to 2025
YearAnnual mean temperatureDifference from the station mean
18936.1 C-2.01 C
18957.0 C-1.12 C
18968.2 C+0.12 C
18987.6 C-0.55 C
18997.4 C-0.72 C
19008.3 C+0.13 C
19037.2 C-0.91 C
19498.6 C+0.45 C
19506.3 C-1.84 C
19516.0 C-2.14 C
19528.2 C+0.12 C
19539.2 C+1.06 C
19549.5 C+1.40 C
19558.9 C+0.73 C
19568.5 C+0.37 C
19578.7 C+0.57 C
19588.3 C+0.13 C
19598.1 C-0.04 C
19608.2 C+0.11 C
19618.2 C+0.03 C
19627.6 C-0.52 C
19638.0 C-0.09 C
19648.8 C+0.67 C
19657.5 C-0.60 C
19667.5 C-0.61 C
19677.7 C-0.47 C
19688.4 C+0.29 C
19697.4 C-0.76 C
19707.6 C-0.52 C
19718.0 C-0.17 C
19727.0 C-1.15 C
19739.1 C+0.93 C
19748.2 C+0.05 C
19758.2 C+0.07 C
19768.2 C+0.07 C
19778.8 C+0.65 C
19787.1 C-0.99 C
19796.8 C-1.35 C
19808.4 C+0.31 C
19819.0 C+0.84 C
19827.3 C-0.83 C
19838.2 C+0.12 C
19848.4 C+0.28 C
19857.4 C-0.77 C
19868.4 C+0.32 C
198710.0 C+1.88 C
19887.9 C-0.27 C
19897.3 C-0.79 C
19908.9 C+0.79 C
19918.4 C+0.28 C
19928.0 C-0.12 C
19936.9 C-1.25 C
19947.6 C-0.49 C
19957.9 C-0.27 C
19966.6 C-1.51 C
19977.4 C-0.73 C
19989.9 C+1.73 C
19999.0 C+0.85 C
20008.0 C-0.09 C
20019.5 C+1.34 C
200210.1 C+1.97 C
20038.7 C+0.56 C
20048.9 C+0.76 C
20059.3 C+1.18 C
20069.8 C+1.72 C
20078.3 C+0.18 C
20086.6 C-1.51 C
20097.2 C-0.88 C
20108.2 C+0.05 C
20118.1 C-0.07 C
201210.3 C+2.14 C
20137.1 C-1.05 C
20146.1 C-1.99 C
20158.6 C+0.45 C
20169.2 C+1.09 C
20178.7 C+0.59 C
20187.5 C-0.65 C
20197.1 C-1.04 C
20208.4 C+0.30 C
20219.0 C+0.92 C
20227.3 C-0.83 C
20239.3 C+1.20 C
20249.8 C+1.68 C
20258.7 C+0.53 C

The annual mean temperature here has risen by 0.08 C (0.02 to 0.14) per decade over 1893 to 2025. In Fahrenheit: 0.14 F (0.03 to 0.25) per decade. The slope is a straight line fitted to 84 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Charles City
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.08 C (0.02 to 0.14) per decade0.14 F (0.03 to 0.25) per decade1893 to 202584Rise
Mean daily maximum0.04 C (-0.03 to 0.12) per decade0.1 F (-0.1 to 0.2) per decade1893 to 202584Not clearly different from zero
Mean daily minimum0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.3) per decade1893 to 202584Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1893 to 2026
Yearly extremes at Charles City: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.2 C (108.0 F)190135.0 C (95.0 F)90
Coldest night (TNn)-36.7 C (-34.1 F)2009-29.4 C (-20.9 F)90
Wettest day (Rx1day)168.9 mm (6.6 in)199962.1 mm (2.4 in)90
Wettest five days (Rx5day)319.6 mm (12.6 in)199997.4 mm (3.8 in)90
Longest dry spell (CDD)69 days190323 days90

Hottest day (TXx)

Hottest day (TXx) at Charles City by year The hottest day of the year at Charles City, 1893 to 2026. The record is 42.2 C (108.0 F) in 1901, marked on the chart; the median year is 35.0 C (95.0 F). 303540451900192019401960198020002020Record: 42.2 C (108.0 F) in 1901
The hottest day of the year at Charles City, 1893 to 2026. The record is 42.2 C (108.0 F) in 1901, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Charles City by year
YearHottest day (TXx)
189335.6 C (96.1 F)
189438.9 C (102.0 F)
189535.0 C (95.0 F)
189637.8 C (100.0 F)
189736.7 C (98.1 F)
189835.6 C (96.1 F)
189935.0 C (95.0 F)
190035.6 C (96.1 F)
190142.2 C (108.0 F)
190333.9 C (93.0 F)
190433.9 C (93.0 F)
194837.8 C (100.0 F)
194935.0 C (95.0 F)
195032.2 C (90.0 F)
195132.8 C (91.0 F)
195234.4 C (93.9 F)
195336.7 C (98.1 F)
195435.6 C (96.1 F)
195537.8 C (100.0 F)
195636.1 C (97.0 F)
195736.7 C (98.1 F)
195834.4 C (93.9 F)
195935.0 C (95.0 F)
196035.0 C (95.0 F)
196134.4 C (93.9 F)
196232.2 C (90.0 F)
196336.7 C (98.1 F)
196436.7 C (98.1 F)
196536.1 C (97.0 F)
196635.0 C (95.0 F)
196734.4 C (93.9 F)
196834.4 C (93.9 F)
196933.9 C (93.0 F)
197036.7 C (98.1 F)
197134.4 C (93.9 F)
197235.0 C (95.0 F)
197335.0 C (95.0 F)
197436.7 C (98.1 F)
197534.4 C (93.9 F)
197636.7 C (98.1 F)
197737.2 C (99.0 F)
197836.1 C (97.0 F)
197932.8 C (91.0 F)
198037.8 C (100.0 F)
198135.0 C (95.0 F)
198235.0 C (95.0 F)
198336.7 C (98.1 F)
198435.6 C (96.1 F)
198538.9 C (102.0 F)
198634.4 C (93.9 F)
198736.7 C (98.1 F)
198840.0 C (104.0 F)
198937.2 C (99.0 F)
199037.2 C (99.0 F)
199135.6 C (96.1 F)
199233.9 C (93.0 F)
199331.1 C (88.0 F)
199432.8 C (91.0 F)
199536.7 C (98.1 F)
199634.4 C (93.9 F)
199733.9 C (93.0 F)
199833.9 C (93.0 F)
199934.4 C (93.9 F)
200035.6 C (96.1 F)
200136.1 C (97.0 F)
200236.7 C (98.1 F)
200336.1 C (97.0 F)
200432.8 C (91.0 F)
200533.9 C (93.0 F)
200635.0 C (95.0 F)
200735.0 C (95.0 F)
200831.7 C (89.1 F)
200933.3 C (91.9 F)
201034.4 C (93.9 F)
201135.6 C (96.1 F)
201237.2 C (99.0 F)
201336.7 C (98.1 F)
201432.2 C (90.0 F)
201534.4 C (93.9 F)
201634.4 C (93.9 F)
201734.4 C (93.9 F)
201835.0 C (95.0 F)
201933.3 C (91.9 F)
202035.0 C (95.0 F)
202134.4 C (93.9 F)
202235.0 C (95.0 F)
202338.9 C (102.0 F)
202434.4 C (93.9 F)
202533.3 C (91.9 F)
202633.3 C (91.9 F)

Coldest night (TNn)

Coldest night (TNn) at Charles City by year The coldest night of the year at Charles City, 1893 to 2026. The record is -36.7 C (-34.1 F) in 2009, marked on the chart; the median year is -29.4 C (-20.9 F). -40-35-30-25-201900192019401960198020002020Record: -36.7 C (-34.1 F) in 2009
The coldest night of the year at Charles City, 1893 to 2026. The record is -36.7 C (-34.1 F) in 2009, marked on the chart; the median year is -29.4 C (-20.9 F).
Coldest night (TNn) at Charles City by year
YearColdest night (TNn)
1893-33.3 C (-27.9 F)
1894-32.2 C (-26.0 F)
1895-32.2 C (-26.0 F)
1896-26.7 C (-16.1 F)
1897-32.8 C (-27.0 F)
1898-29.4 C (-20.9 F)
1899-35.0 C (-31.0 F)
1900-30.0 C (-22.0 F)
1901-30.6 C (-23.1 F)
1903-28.9 C (-20.0 F)
1904-35.0 C (-31.0 F)
1948-21.7 C (-7.1 F)
1949-28.9 C (-20.0 F)
1950-31.7 C (-25.1 F)
1951-34.4 C (-29.9 F)
1952-27.2 C (-17.0 F)
1953-25.0 C (-13.0 F)
1954-27.2 C (-17.0 F)
1955-27.2 C (-17.0 F)
1956-30.0 C (-22.0 F)
1957-26.1 C (-15.0 F)
1958-28.3 C (-18.9 F)
1959-28.3 C (-18.9 F)
1960-27.2 C (-17.0 F)
1961-30.0 C (-22.0 F)
1962-35.6 C (-32.1 F)
1963-35.0 C (-31.0 F)
1964-24.4 C (-11.9 F)
1965-31.1 C (-24.0 F)
1966-32.8 C (-27.0 F)
1967-35.0 C (-31.0 F)
1968-27.8 C (-18.0 F)
1969-26.7 C (-16.1 F)
1970-33.3 C (-27.9 F)
1971-31.7 C (-25.1 F)
1972-31.7 C (-25.1 F)
1973-27.8 C (-18.0 F)
1974-31.7 C (-25.1 F)
1975-28.9 C (-20.0 F)
1976-29.4 C (-20.9 F)
1977-31.7 C (-25.1 F)
1978-27.2 C (-17.0 F)
1979-32.8 C (-27.0 F)
1980-24.4 C (-11.9 F)
1981-27.8 C (-18.0 F)
1982-32.2 C (-26.0 F)
1983-31.1 C (-24.0 F)
1984-29.4 C (-20.9 F)
1985-31.7 C (-25.1 F)
1986-28.9 C (-20.0 F)
1987-24.4 C (-11.9 F)
1988-33.9 C (-29.0 F)
1989-30.6 C (-23.1 F)
1990-30.6 C (-23.1 F)
1991-28.3 C (-18.9 F)
1992-25.0 C (-13.0 F)
1993-27.8 C (-18.0 F)
1994-33.3 C (-27.9 F)
1995-23.3 C (-9.9 F)
1996-35.6 C (-32.1 F)
1997-26.7 C (-16.1 F)
1998-24.4 C (-11.9 F)
1999-30.0 C (-22.0 F)
2000-33.9 C (-29.0 F)
2001-26.1 C (-15.0 F)
2002-21.7 C (-7.1 F)
2003-25.6 C (-14.1 F)
2004-27.2 C (-17.0 F)
2005-28.9 C (-20.0 F)
2006-30.6 C (-23.1 F)
2007-28.9 C (-20.0 F)
2008-31.1 C (-24.0 F)
2009-36.7 C (-34.1 F)
2010-30.0 C (-22.0 F)
2011-31.7 C (-25.1 F)
2012-26.7 C (-16.1 F)
2013-27.2 C (-17.0 F)
2014-32.2 C (-26.0 F)
2015-31.7 C (-25.1 F)
2016-29.4 C (-20.9 F)
2017-27.8 C (-18.0 F)
2018-28.3 C (-18.9 F)
2019-36.1 C (-33.0 F)
2020-28.3 C (-18.9 F)
2021-28.9 C (-20.0 F)
2022-31.1 C (-24.0 F)
2023-30.6 C (-23.1 F)
2024-26.1 C (-15.0 F)
2025-28.3 C (-18.9 F)
2026-28.9 C (-20.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Charles City by year The wettest day of the year at Charles City, 1893 to 2026. The record is 168.9 mm (6.6 in) in 1999, marked on the chart; the median year is 62.1 mm (2.4 in). 0501001502001900192019401960198020002020Record: 168.9 mm (6.6 in) in 1999
The wettest day of the year at Charles City, 1893 to 2026. The record is 168.9 mm (6.6 in) in 1999, marked on the chart; the median year is 62.1 mm (2.4 in).
Wettest day (Rx1day) at Charles City by year
YearWettest day (Rx1day)
189335.1 mm (1.4 in)
189479.2 mm (3.1 in)
189543.4 mm (1.7 in)
189661.2 mm (2.4 in)
189736.1 mm (1.4 in)
189850.8 mm (2.0 in)
189941.7 mm (1.6 in)
190086.4 mm (3.4 in)
190146.2 mm (1.8 in)
190382.3 mm (3.2 in)
190493.2 mm (3.7 in)
194840.6 mm (1.6 in)
194936.3 mm (1.4 in)
195052.3 mm (2.1 in)
195141.4 mm (1.6 in)
195250.5 mm (2.0 in)
195340.9 mm (1.6 in)
195471.6 mm (2.8 in)
195540.9 mm (1.6 in)
195661.0 mm (2.4 in)
195728.2 mm (1.1 in)
195849.0 mm (1.9 in)
195985.1 mm (3.4 in)
196045.0 mm (1.8 in)
196137.3 mm (1.5 in)
196295.5 mm (3.8 in)
196393.2 mm (3.7 in)
1964102.6 mm (4.0 in)
196557.7 mm (2.3 in)
196662.2 mm (2.4 in)
196768.6 mm (2.7 in)
196863.5 mm (2.5 in)
196962.5 mm (2.5 in)
197081.8 mm (3.2 in)
197143.7 mm (1.7 in)
1972131.6 mm (5.2 in)
197359.7 mm (2.4 in)
197486.9 mm (3.4 in)
197562.5 mm (2.5 in)
197677.7 mm (3.1 in)
197761.0 mm (2.4 in)
197890.4 mm (3.6 in)
197974.2 mm (2.9 in)
1980160.0 mm (6.3 in)
198164.8 mm (2.6 in)
198244.7 mm (1.8 in)
198376.7 mm (3.0 in)
198441.9 mm (1.6 in)
198590.7 mm (3.6 in)
198657.4 mm (2.3 in)
198754.9 mm (2.2 in)
198853.6 mm (2.1 in)
198923.6 mm (0.9 in)
199097.5 mm (3.8 in)
199182.6 mm (3.3 in)
199251.1 mm (2.0 in)
199365.8 mm (2.6 in)
199452.6 mm (2.1 in)
199551.3 mm (2.0 in)
199657.4 mm (2.3 in)
199758.7 mm (2.3 in)
199884.3 mm (3.3 in)
1999168.9 mm (6.6 in)
200078.7 mm (3.1 in)
200167.6 mm (2.7 in)
200258.4 mm (2.3 in)
200354.6 mm (2.1 in)
200486.9 mm (3.4 in)
200559.2 mm (2.3 in)
200667.6 mm (2.7 in)
200779.8 mm (3.1 in)
200885.9 mm (3.4 in)
200978.0 mm (3.1 in)
201054.1 mm (2.1 in)
201148.5 mm (1.9 in)
201264.0 mm (2.5 in)
201372.4 mm (2.9 in)
201465.8 mm (2.6 in)
201548.3 mm (1.9 in)
2016161.3 mm (6.4 in)
2017168.4 mm (6.6 in)
201881.0 mm (3.2 in)
201962.0 mm (2.4 in)
202062.0 mm (2.4 in)
2021111.3 mm (4.4 in)
202278.7 mm (3.1 in)
202338.6 mm (1.5 in)
202459.7 mm (2.4 in)
202591.4 mm (3.6 in)
202652.1 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Charles City by year The wettest five days of the year at Charles City, 1893 to 2026. The record is 319.6 mm (12.6 in) in 1999, marked on the chart; the median year is 97.4 mm (3.8 in). 01002003004001900192019401960198020002020Record: 319.6 mm (12.6 in) in 1999
The wettest five days of the year at Charles City, 1893 to 2026. The record is 319.6 mm (12.6 in) in 1999, marked on the chart; the median year is 97.4 mm (3.8 in).
Wettest five days (Rx5day) at Charles City by year
YearWettest five days (Rx5day)
189398.1 mm (3.9 in)
189490.6 mm (3.6 in)
189556.4 mm (2.2 in)
1896107.8 mm (4.2 in)
189753.1 mm (2.1 in)
189859.0 mm (2.3 in)
189985.4 mm (3.4 in)
190096.6 mm (3.8 in)
190170.8 mm (2.8 in)
1903119.4 mm (4.7 in)
1904108.4 mm (4.3 in)
194852.9 mm (2.1 in)
194976.8 mm (3.0 in)
195065.2 mm (2.6 in)
195165.8 mm (2.6 in)
195256.6 mm (2.2 in)
195373.2 mm (2.9 in)
1954135.7 mm (5.3 in)
195560.5 mm (2.4 in)
195696.0 mm (3.8 in)
195750.4 mm (2.0 in)
195882.4 mm (3.2 in)
1959123.0 mm (4.8 in)
196073.9 mm (2.9 in)
196178.5 mm (3.1 in)
1962125.2 mm (4.9 in)
1963138.2 mm (5.4 in)
1964139.4 mm (5.5 in)
1965134.8 mm (5.3 in)
196674.2 mm (2.9 in)
196780.8 mm (3.2 in)
1968107.9 mm (4.2 in)
1969155.0 mm (6.1 in)
197098.6 mm (3.9 in)
197157.9 mm (2.3 in)
1972233.4 mm (9.2 in)
1973118.9 mm (4.7 in)
1974103.4 mm (4.1 in)
197580.0 mm (3.1 in)
1976105.9 mm (4.2 in)
197796.1 mm (3.8 in)
1978131.3 mm (5.2 in)
1979144.1 mm (5.7 in)
1980225.0 mm (8.9 in)
198184.8 mm (3.3 in)
198264.9 mm (2.6 in)
1983124.2 mm (4.9 in)
198455.1 mm (2.2 in)
198590.7 mm (3.6 in)
1986100.8 mm (4.0 in)
198765.6 mm (2.6 in)
198872.4 mm (2.9 in)
198943.5 mm (1.7 in)
1990132.7 mm (5.2 in)
1991104.5 mm (4.1 in)
199268.3 mm (2.7 in)
1993126.0 mm (5.0 in)
199487.6 mm (3.4 in)
1995115.3 mm (4.5 in)
199677.2 mm (3.0 in)
199770.6 mm (2.8 in)
1998111.2 mm (4.4 in)
1999319.6 mm (12.6 in)
2000150.6 mm (5.9 in)
200196.7 mm (3.8 in)
2002117.3 mm (4.6 in)
200395.3 mm (3.8 in)
2004144.0 mm (5.7 in)
2005126.0 mm (5.0 in)
200669.2 mm (2.7 in)
2007184.4 mm (7.3 in)
2008186.8 mm (7.4 in)
2009119.6 mm (4.7 in)
2010117.1 mm (4.6 in)
201154.8 mm (2.2 in)
201278.9 mm (3.1 in)
2013108.7 mm (4.3 in)
2014179.1 mm (7.1 in)
201561.7 mm (2.4 in)
2016226.6 mm (8.9 in)
2017188.7 mm (7.4 in)
2018165.1 mm (6.5 in)
201984.1 mm (3.3 in)
2020125.3 mm (4.9 in)
2021142.0 mm (5.6 in)
202289.4 mm (3.5 in)
202356.7 mm (2.2 in)
2024132.8 mm (5.2 in)
2025100.6 mm (4.0 in)
202690.5 mm (3.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Charles City by year The longest dry spell of the year at Charles City, 1893 to 2026. The record is 69 days in 1903, marked on the chart; the median year is 23 days. 0204060801900192019401960198020002020Record: 69 days in 1903
The longest dry spell of the year at Charles City, 1893 to 2026. The record is 69 days in 1903, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Charles City by year
YearLongest dry spell (CDD)
189328 days
189425 days
189521 days
189624 days
189723 days
189837 days
189918 days
190021 days
190122 days
190369 days
190418 days
194821 days
194925 days
195031 days
195118 days
195259 days
195331 days
195426 days
195518 days
195621 days
195716 days
195830 days
195918 days
196023 days
196115 days
196225 days
196320 days
196438 days
196520 days
196625 days
196717 days
196827 days
196921 days
197022 days
197118 days
197223 days
197319 days
197416 days
197524 days
197645 days
197718 days
197820 days
197930 days
198031 days
198129 days
198218 days
198319 days
198429 days
198515 days
198633 days
198732 days
198825 days
198920 days
199018 days
199137 days
199220 days
199322 days
199426 days
199521 days
199636 days
199720 days
199820 days
199920 days
200017 days
200118 days
200237 days
200315 days
200417 days
200515 days
200625 days
200723 days
200812 days
200930 days
201028 days
201119 days
201226 days
201322 days
201420 days
201524 days
201626 days
201723 days
201824 days
201918 days
202034 days
202119 days
202228 days
202329 days
202438 days
202543 days
202616 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

84 years with a frost

Across 84 years with a frost, the median last spring frost at Charles City falls on 2 May and the median first autumn frost on 3 October, which leaves a median of 156 days between them.

In 1996 to 2025 the median growing season was 154 days. That is 2 days fewer than in 1893 to 1971.

Fitted over all years, the growing season changes by +0.7 days per decade at this station.

Frost dates and growing season at Charles City
MeasureMedian, all yearsEarliest period (1893 to 1971)Recent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost2 May3 May4 May1 day later-0.1 days per decade
First autumn frost3 October4 October7 October3 days later+0.6 days per decade
Growing days156 days156 days154 days2 days fewer+0.7 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

82 years, 1894 to 2025

A day with at least 64.3 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 171.7 mm (6.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Charles City: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.3 mm (2.5 in)
5 years88.0 mm (3.5 in)
10 years105.6 mm (4.2 in)
25 years130.1 mm (5.1 in)
50 years150.1 mm (5.9 in)
100 years171.7 mm (6.8 in)Longer than the 82 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 82 years of values from 1894 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 168.9 mm (6.6 in) in 1999; 168.4 mm (6.6 in) in 2017; 161.3 mm (6.4 in) in 2016.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Charles City had a mean temperature of 8.3 C (47.0 F) and 972.6 mm (38.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Paw Paw 2S (United States, 341 km away), Grinnell 3 SW (United States, 149 km away) and Toledo 3N (United States, 114 km away).

Climate twins of Charles City: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Paw Paw 2SUnited States341 km (212 mi)8.4 C (47.1 F)907.5 mm (35.7 in)0.70
Grinnell 3 SWUnited States149 km (93 mi)8.2 C (46.8 F)913.5 mm (36.0 in)0.80
Toledo 3NUnited States114 km (71 mi)8.3 C (47.0 F)881.4 mm (34.7 in)0.84

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Charles City standing records by year: CSV or JSON. Field meanings are on the data page.
  • 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).