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Charmany Farm Weather Records (USC00471416)

Record envelope, standing records and threshold days for Charmany Farm (USC00471416), Wisconsin, United States, with 68 years of record.

Key Facts for Charmany Farm

  • Charmany Farm (USC00471416) is a weather station in Wisconsin, United States at 43.06 latitude and -89.48 longitude, 319 m (1,046 ft) above sea level.
  • The station reports from 1959 to 2026, 68 years of record.
  • 1,464 records set at Charmany Farm still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Charmany Farm set a daily record precipitation of 31.2 mm (1.2 in) on 1 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Wisconsin, United States, 43.06 latitude, -89.48 longitude.
  • Elevation: 319 m (1,046 ft).
  • Period of record: 1959 to 2026, 68 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Charmany Farm, with 2026 drawn through them The band shows the record high and record low for each calendar day at Charmany Farm. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Charmany Farm. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Charmany Farm, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.3 C (55.9 F)-36.7 C (-34.1 F)n/an/a
Feb20.6 C (69.1 F)-32.8 C (-27.0 F)n/an/a
Mar27.2 C (81.0 F)-23.9 C (-11.0 F)n/an/a
Apr33.9 C (93.0 F)-15.6 C (3.9 F)n/an/a
May34.4 C (93.9 F)-5.0 C (23.0 F)n/an/a
Jun38.3 C (100.9 F)0.6 C (33.1 F)n/an/a
Jul39.4 C (102.9 F)5.6 C (42.1 F)n/an/a
Aug38.9 C (102.0 F)2.8 C (37.0 F)n/an/a
Sep35.0 C (95.0 F)-4.4 C (24.1 F)n/an/a
Oct31.1 C (88.0 F)-8.3 C (17.1 F)n/an/a
Nov23.9 C (75.0 F)-22.8 C (-9.0 F)n/an/a
Dec18.3 C (64.9 F)-34.4 C (-29.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Charmany Farm by the year they were set 1,464 records at Charmany Farm still stand. 1988 holds the most, with 52. 02040601959: 171963: 131964: 331965: 481966: 301967: 321968: 291969: 161970: 141971: 251972: 301973: 181974: 201975: 171976: 451977: 381978: 181979: 311980: 111981: 131982: 331983: 331984: 421985: 281986: 311987: 271988: 521989: 321990: 301991: 431992: 241993: 161994: 251995: 251996: 231997: 191998: 181999: 182000: 252001: 212002: 272003: 142004: 162005: 242006: 242007: 262008: 182009: 162010: 162011: 232012: 502013: 102014: 332015: 322016: 142017: 372018: 211959196819741980198619921998200420102016
1,464 records at Charmany Farm still stand. 1988 holds the most, with 52.
Standing records at Charmany Farm by the year they were set
Year setStanding records
195917
196313
196433
196548
196630
196732
196829
196916
197014
197125
197230
197318
197420
197517
197645
197738
197818
197931
198011
198113
198233
198333
198442
198528
198631
198727
198852
198932
199030
199143
199224
199316
199425
199525
199623
199719
199818
199918
200025
200121
200227
200314
200416
200524
200624
200726
200818
200916
201016
201123
201250
201310
201433
201532
201614
201737
201821

All-Time Record Progression

4 new records
When Charmany Farm set new all-time records 4 all-time records were set at Charmany Farm between 19 January 1994 and 21 August 2018. Each dot is a new record. Record low minimum temperatureRecord daily precipitationRecord high maximum temperature19 January 1994: Record low minimum temperature -36.7 C (-34.1 F)2 August 2001: Record daily precipitation 148.6 mm (5.9 in)6 July 2012: Record high maximum temperature 39.4 C (102.9 F)21 August 2018: Record daily precipitation 244.3 mm (9.6 in)19952000200520102015
4 all-time records were set at Charmany Farm between 19 January 1994 and 21 August 2018. Each dot is a new record.
When Charmany Farm set new all-time records
DateKindDetail
1994-01-19Record low minimum temperatureRecord low minimum temperature -36.7 C (-34.1 F)
2001-08-02Record daily precipitationRecord daily precipitation 148.6 mm (5.9 in)
2012-07-06Record high maximum temperatureRecord high maximum temperature 39.4 C (102.9 F)
2018-08-21Record daily precipitationRecord daily precipitation 244.3 mm (9.6 in)

Wettest Day of Each Month

Aug: 244.3 mm (9.6 in)
Record daily precipitation for each month at Charmany Farm The wettest day on record for each calendar month at Charmany Farm. The most was 244.3 mm (9.6 in) on 21 August 2018. 0100200300 Jan: 33.5 mm (1.3 in), 29 January 2013 Jan Feb: 36.8 mm (1.4 in), 18 February 2008 Feb Mar: 74.9 mm (2.9 in), 31 March 1998 Mar Apr: 65.0 mm (2.6 in), 23 April 1999 Apr May: 105.4 mm (4.1 in), 22 May 2004 May Jun: 91.4 mm (3.6 in), 26 June 1969 Jun Jul: 111.8 mm (4.4 in), 18 July 1977 Jul Aug: 244.3 mm (9.6 in), 21 August 2018 Aug Sep: 80.0 mm (3.1 in), 23 September 2009 Sep Oct: 76.5 mm (3.0 in), 19 October 1984 Oct Nov: 90.2 mm (3.6 in), 4 November 2003 Nov Dec: 66.0 mm (2.6 in), 4 December 2010 Dec
The wettest day on record for each calendar month at Charmany Farm. The most was 244.3 mm (9.6 in) on 21 August 2018.
Record daily precipitation for each month at Charmany Farm
MonthRecord daily precipitation (mm)Date
Jan33.5 mm (1.3 in)29 January 2013
Feb36.8 mm (1.4 in)18 February 2008
Mar74.9 mm (2.9 in)31 March 1998
Apr65.0 mm (2.6 in)23 April 1999
May105.4 mm (4.1 in)22 May 2004
Jun91.4 mm (3.6 in)26 June 1969
Jul111.8 mm (4.4 in)18 July 1977
Aug244.3 mm (9.6 in)21 August 2018
Sep80.0 mm (3.1 in)23 September 2009
Oct76.5 mm (3.0 in)19 October 1984
Nov90.2 mm (3.6 in)4 November 2003
Dec66.0 mm (2.6 in)4 December 2010

Period of Record Coverage

1959 to 2019
Days with data per year at Charmany Farm 58 years of record at Charmany Farm, 1959 to 2019. 6 years have data for under 90 percent of days and are left out of rankings: 1959, 1963, 1970, 2000, 2008, 2019. 1959: 153 of 365 days1963: 181 of 365 days1964: 360 of 366 days1965: 362 of 365 days1966: 354 of 365 days1967: 361 of 365 days1968: 363 of 366 days1969: 362 of 365 days1970: 257 of 365 days1971: 349 of 365 days1972: 359 of 366 days1973: 354 of 365 days1974: 352 of 365 days1975: 354 of 365 days1976: 363 of 366 days1977: 359 of 365 days1978: 358 of 365 days1979: 356 of 365 days1980: 330 of 366 days1981: 359 of 365 days1982: 345 of 365 days1983: 350 of 365 days1984: 356 of 366 days1985: 343 of 365 days1986: 350 of 365 days1987: 358 of 365 days1988: 358 of 366 days1989: 350 of 365 days1990: 360 of 365 days1991: 361 of 365 days1992: 361 of 366 days1993: 363 of 365 days1994: 359 of 365 days1995: 358 of 365 days1996: 358 of 366 days1997: 362 of 365 days1998: 355 of 365 days1999: 358 of 365 days2000: 329 of 366 days2001: 362 of 365 days2002: 360 of 365 days2003: 362 of 365 days2004: 362 of 366 days2005: 358 of 365 days2006: 359 of 365 days2007: 359 of 365 days2008: 170 of 366 days2009: 360 of 365 days2010: 361 of 365 days2011: 364 of 365 days2012: 360 of 366 days2013: 345 of 365 days2014: 355 of 365 days2015: 362 of 365 days2016: 357 of 366 days2017: 355 of 365 days2018: 354 of 365 days2019: 2 of 365 days19701980199020002010
58 years of record at Charmany Farm, 1959 to 2019. 6 years have data for under 90 percent of days and are left out of rankings: 1959, 1963, 1970, 2000, 2008, 2019.
Days with data per year at Charmany Farm
YearDays with dataShare of yearComplete
195915342%No
196318150%No
196436098%Yes
196536299%Yes
196635497%Yes
196736199%Yes
196836399%Yes
196936299%Yes
197025770%No
197134996%Yes
197235998%Yes
197335497%Yes
197435296%Yes
197535497%Yes
197636399%Yes
197735998%Yes
197835898%Yes
197935698%Yes
198033090%Yes
198135998%Yes
198234595%Yes
198335096%Yes
198435697%Yes
198534394%Yes
198635096%Yes
198735898%Yes
198835898%Yes
198935096%Yes
199036099%Yes
199136199%Yes
199236199%Yes
199336399%Yes
199435998%Yes
199535898%Yes
199635898%Yes
199736299%Yes
199835597%Yes
199935898%Yes
200032990%No
200136299%Yes
200236099%Yes
200336299%Yes
200436299%Yes
200535898%Yes
200635998%Yes
200735998%Yes
200817046%No
200936099%Yes
201036199%Yes
2011364100%Yes
201236098%Yes
201334595%Yes
201435597%Yes
201536299%Yes
201635798%Yes
201735597%Yes
201835497%Yes
201921%No

Latest Records

20
Latest records at Charmany Farm
DateStationRecordValueBeat old record byOld record stoodSignificance
1 October 2026Charmany Farm, USdaily rain (Provisional)31.2 mm (1.2 in)2.8 mm (0.11 in)8 years10 of 100 (Routine)
19 September 2026Charmany Farm, USdaily rain (Provisional)49.5 mm (1.9 in)27.1 mm (1.1 in)55 years43 of 100 (Notable)
16 March 2026Charmany Farm, USdaily snowfall16.3 cm (6.4 in)11.2 cm (4.4 in)4 years29 of 100 (Routine)
1 March 2026Charmany Farm, USdaily snowfall3.6 cm (1.4 in)1.3 cm (0.5 in)9 years10 of 100 (Routine)
9 January 2026Charmany Farm, USdaily rain13.0 mm (0.5 in)4.1 mm (0.16 in)28 years20 of 100 (Routine)
3 December 2025Charmany Farm, USdaily snow depth20.3 cm (8.0 in)7.6 cm (3.0 in)28 years21 of 100 (Routine)
30 November 2025Charmany Farm, USdaily snow depth25.4 cm (10.0 in)10.2 cm (4.0 in)54 years47 of 100 (Notable)
30 November 2025Charmany Farm, USmonthly snowfall25.4 cm (10.0 in)5.1 cm (2.0 in)30 years39 of 100 (Notable)
30 November 2025Charmany Farm, USdaily rain19.8 mm (0.8 in)3.3 mm (0.13 in)34 years19 of 100 (Routine)
12 August 2025Charmany Farm, USdaily rain25.4 mm (1.0 in)13.5 mm (0.5 in)28 years21 of 100 (Routine)
11 August 2025Charmany Farm, USdaily rain61.0 mm (2.4 in)8.7 mm (0.34 in)31 years20 of 100 (Routine)
31 July 2025Charmany Farm, USdaily rain38.9 mm (1.5 in)16.8 mm (0.7 in)26 years23 of 100 (Routine)
21 May 2025Charmany Farm, USdaily rain34.0 mm (1.3 in)14.9 mm (0.6 in)24 years26 of 100 (Routine)
2 May 2025Charmany Farm, USdaily rain34.8 mm (1.4 in)2.3 mm (0.09 in)52 years23 of 100 (Routine)
13 February 2025Charmany Farm, USdaily snowfall12.2 cm (4.8 in)0.8 cm (0.3 in)31 years16 of 100 (Routine)
19 November 2024Charmany Farm, USdaily rain34.0 mm (1.3 in)26.1 mm (1.0 in)23 years39 of 100 (Notable)
14 November 2024Charmany Farm, USdaily rain8.9 mm (0.35 in)0.5 mm (0.02 in)30 years15 of 100 (Routine)
31 October 2024Charmany Farm, USdaily rain50.5 mm (2.0 in)39.1 mm (1.5 in)48 years57 of 100 (Notable)
22 September 2024Charmany Farm, USdaily rain48.5 mm (1.9 in)11.2 mm (0.4 in)44 years27 of 100 (Routine)
14 July 2024Charmany Farm, USdaily rain63.8 mm (2.5 in)5.9 mm (0.23 in)58 years26 of 100 (Routine)

Climate Trend

49 complete years, 1964 to 2018
Annual mean temperature at Charmany Farm as warming stripes, 1964 to 2018 One stripe for each of 49 complete years at Charmany Farm, 1964 to 2018. Blue stripes are years cooler than the station's own mean of 8.0 C (46.4 F); red stripes are warmer. The coolest year was 1978, at 6.0 C (42.8 F), and the warmest was 2012, at 10.5 C (50.8 F). The strongest colour marks a difference of 2.5 C (4.5 F). 1964: 9.1 C, +1.1 C from the station mean1965: 8.3 C, +0.3 C from the station mean1966: 8.0 C, -0.1 C from the station mean1967: 7.8 C, -0.2 C from the station mean1968: 8.8 C, +0.7 C from the station mean1969: 7.9 C, -0.2 C from the station mean1971: 8.7 C, +0.6 C from the station mean1972: 7.4 C, -0.6 C from the station mean1973: 9.4 C, +1.4 C from the station mean1974: 8.2 C, +0.2 C from the station mean1975: 8.3 C, +0.3 C from the station mean1976: 6.7 C, -1.3 C from the station mean1977: 7.1 C, -0.9 C from the station mean1978: 6.0 C, -2.0 C from the station mean1981: 7.6 C, -0.4 C from the station mean1982: 6.3 C, -1.8 C from the station mean1983: 7.2 C, -0.8 C from the station mean1984: 6.5 C, -1.5 C from the station mean1985: 7.0 C, -1.0 C from the station mean1986: 7.3 C, -0.7 C from the station mean1987: 8.3 C, +0.3 C from the station mean1989: 6.7 C, -1.3 C from the station mean1990: 8.1 C, +0.1 C from the station mean1991: 7.7 C, -0.3 C from the station mean1992: 7.5 C, -0.5 C from the station mean1993: 6.9 C, -1.1 C from the station mean1994: 7.6 C, -0.4 C from the station mean1995: 7.5 C, -0.5 C from the station mean1996: 6.5 C, -1.6 C from the station mean1997: 7.6 C, -0.4 C from the station mean1998: 10.1 C, +2.1 C from the station mean1999: 9.2 C, +1.2 C from the station mean2001: 9.2 C, +1.1 C from the station mean2002: 9.0 C, +1.0 C from the station mean2003: 8.0 C, 0.0 C from the station mean2004: 8.3 C, +0.3 C from the station mean2005: 9.1 C, +1.1 C from the station mean2006: 9.4 C, +1.3 C from the station mean2007: 9.1 C, +1.0 C from the station mean2009: 7.8 C, -0.2 C from the station mean2010: 9.0 C, +1.0 C from the station mean2011: 8.5 C, +0.5 C from the station mean2012: 10.5 C, +2.4 C from the station mean2013: 7.3 C, -0.7 C from the station mean2014: 6.4 C, -1.6 C from the station mean2015: 8.1 C, +0.1 C from the station mean2016: 9.3 C, +1.3 C from the station mean2017: 8.8 C, +0.8 C from the station mean2018: 7.8 C, -0.2 C from the station mean19641970197519801985199019952000200520102015
One stripe for each of 49 complete years at Charmany Farm, 1964 to 2018. Blue stripes are years cooler than the station's own mean of 8.0 C (46.4 F); red stripes are warmer. The coolest year was 1978, at 6.0 C (42.8 F), and the warmest was 2012, at 10.5 C (50.8 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Charmany Farm as warming stripes, 1964 to 2018
YearAnnual mean temperatureDifference from the station mean
19649.1 C+1.09 C
19658.3 C+0.29 C
19668.0 C-0.05 C
19677.8 C-0.23 C
19688.8 C+0.74 C
19697.9 C-0.16 C
19718.7 C+0.65 C
19727.4 C-0.61 C
19739.4 C+1.40 C
19748.2 C+0.23 C
19758.3 C+0.28 C
19766.7 C-1.29 C
19777.1 C-0.89 C
19786.0 C-1.99 C
19817.6 C-0.43 C
19826.3 C-1.76 C
19837.2 C-0.82 C
19846.5 C-1.51 C
19857.0 C-0.97 C
19867.3 C-0.70 C
19878.3 C+0.27 C
19896.7 C-1.32 C
19908.1 C+0.12 C
19917.7 C-0.28 C
19927.5 C-0.51 C
19936.9 C-1.07 C
19947.6 C-0.43 C
19957.5 C-0.47 C
19966.5 C-1.55 C
19977.6 C-0.39 C
199810.1 C+2.12 C
19999.2 C+1.16 C
20019.2 C+1.15 C
20029.0 C+0.97 C
20038.0 C+0.03 C
20048.3 C+0.32 C
20059.1 C+1.10 C
20069.4 C+1.35 C
20079.1 C+1.04 C
20097.8 C-0.22 C
20109.0 C+0.98 C
20118.5 C+0.48 C
201210.5 C+2.45 C
20137.3 C-0.67 C
20146.4 C-1.64 C
20158.1 C+0.09 C
20169.3 C+1.27 C
20178.8 C+0.79 C
20187.8 C-0.24 C

The fitted trend in annual mean temperature here over 1964 to 2018 is 0.14 C (-0.03 to 0.32) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.3 F (-0.1 to 0.6) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Charmany Farm
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.14 C (-0.03 to 0.32) per decade0.3 F (-0.1 to 0.6) per decade1964 to 201849Not clearly different from zero
Mean daily maximum0.02 C (-0.14 to 0.19) per decade0.04 F (-0.26 to 0.34) per decade1964 to 201849Not clearly different from zero
Mean daily minimum0.27 C (0.05 to 0.49) per decade0.5 F (0.1 to 0.9) per decade1964 to 201849Rise

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

1959 to 2026
Yearly extremes at Charmany Farm: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)39.4 C (102.9 F)201234.2 C (93.5 F)58
Coldest night (TNn)-36.7 C (-34.1 F)1994-26.1 C (-15.0 F)58
Wettest day (Rx1day)244.3 mm (9.6 in)201861.0 mm (2.4 in)65
Wettest five days (Rx5day)282.9 mm (11.1 in)201894.0 mm (3.7 in)65
Longest dry spell (CDD)41 days198121 days65

Hottest day (TXx)

Hottest day (TXx) at Charmany Farm by year The hottest day of the year at Charmany Farm, 1959 to 2026. The record is 39.4 C (102.9 F) in 2012, marked on the chart; the median year is 34.2 C (93.5 F). 0102030401960198020002020Record: 39.4 C (102.9 F) in 2012
The hottest day of the year at Charmany Farm, 1959 to 2026. The record is 39.4 C (102.9 F) in 2012, marked on the chart; the median year is 34.2 C (93.5 F).
Hottest day (TXx) at Charmany Farm by year
YearHottest day (TXx)
195935.0 C (95.0 F)
196336.1 C (97.0 F)
196435.6 C (96.1 F)
196537.8 C (100.0 F)
196636.1 C (97.0 F)
196732.8 C (91.0 F)
196836.1 C (97.0 F)
196932.8 C (91.0 F)
197033.3 C (91.9 F)
197133.3 C (91.9 F)
197233.9 C (93.0 F)
197334.4 C (93.9 F)
197434.4 C (93.9 F)
197532.8 C (91.0 F)
197637.2 C (99.0 F)
197736.1 C (97.0 F)
197835.0 C (95.0 F)
197931.7 C (89.1 F)
198034.4 C (93.9 F)
198133.9 C (93.0 F)
198233.9 C (93.0 F)
198336.7 C (98.1 F)
198434.4 C (93.9 F)
198533.3 C (91.9 F)
198633.9 C (93.0 F)
198735.0 C (95.0 F)
198838.9 C (102.0 F)
198935.6 C (96.1 F)
199033.9 C (93.0 F)
199133.9 C (93.0 F)
199233.3 C (91.9 F)
199330.6 C (87.1 F)
199433.3 C (91.9 F)
199536.1 C (97.0 F)
199632.8 C (91.0 F)
199733.9 C (93.0 F)
199832.2 C (90.0 F)
199936.1 C (97.0 F)
200032.8 C (91.0 F)
200135.6 C (96.1 F)
200236.1 C (97.0 F)
200335.0 C (95.0 F)
200431.7 C (89.1 F)
200535.0 C (95.0 F)
200635.0 C (95.0 F)
200733.3 C (91.9 F)
200832.8 C (91.0 F)
200934.4 C (93.9 F)
201033.3 C (91.9 F)
201135.6 C (96.1 F)
201239.4 C (102.9 F)
201334.4 C (93.9 F)
201432.2 C (90.0 F)
201532.8 C (91.0 F)
201633.9 C (93.0 F)
201733.3 C (91.9 F)
201834.4 C (93.9 F)
20190.6 C (33.1 F)
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Coldest night (TNn)

Coldest night (TNn) at Charmany Farm by year The coldest night of the year at Charmany Farm, 1959 to 2026. The record is -36.7 C (-34.1 F) in 1994, marked on the chart; the median year is -26.1 C (-15.0 F). -40-30-20-1001960198020002020Record: -36.7 C (-34.1 F) in 1994
The coldest night of the year at Charmany Farm, 1959 to 2026. The record is -36.7 C (-34.1 F) in 1994, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Charmany Farm by year
YearColdest night (TNn)
1959-18.9 C (-2.0 F)
1963-26.7 C (-16.1 F)
1964-23.3 C (-9.9 F)
1965-27.8 C (-18.0 F)
1966-30.0 C (-22.0 F)
1967-29.4 C (-20.9 F)
1968-27.8 C (-18.0 F)
1969-27.8 C (-18.0 F)
1970-28.3 C (-18.9 F)
1971-27.8 C (-18.0 F)
1972-31.1 C (-24.0 F)
1973-23.3 C (-9.9 F)
1974-26.1 C (-15.0 F)
1975-25.6 C (-14.1 F)
1976-27.2 C (-17.0 F)
1977-30.6 C (-23.1 F)
1978-28.3 C (-18.9 F)
1979-34.4 C (-29.9 F)
1980-23.3 C (-9.9 F)
1981-24.4 C (-11.9 F)
1982-34.4 C (-29.9 F)
1983-34.4 C (-29.9 F)
1984-35.6 C (-32.1 F)
1985-32.8 C (-27.0 F)
1986-27.2 C (-17.0 F)
1987-26.1 C (-15.0 F)
1988-33.3 C (-27.9 F)
1989-30.0 C (-22.0 F)
1990-27.8 C (-18.0 F)
1991-26.1 C (-15.0 F)
1992-25.0 C (-13.0 F)
1993-22.2 C (-8.0 F)
1994-36.7 C (-34.1 F)
1995-22.2 C (-8.0 F)
1996-32.8 C (-27.0 F)
1997-24.4 C (-11.9 F)
1998-22.2 C (-8.0 F)
1999-28.9 C (-20.0 F)
2000-21.1 C (-6.0 F)
2001-21.1 C (-6.0 F)
2002-23.9 C (-11.0 F)
2003-22.8 C (-9.0 F)
2004-25.6 C (-14.1 F)
2005-22.2 C (-8.0 F)
2006-27.2 C (-17.0 F)
2007-26.7 C (-16.1 F)
2008-25.0 C (-13.0 F)
2009-26.7 C (-16.1 F)
2010-22.2 C (-8.0 F)
2011-23.9 C (-11.0 F)
2012-20.0 C (-4.0 F)
2013-23.9 C (-11.0 F)
2014-29.4 C (-20.9 F)
2015-24.4 C (-11.9 F)
2016-23.9 C (-11.0 F)
2017-22.8 C (-9.0 F)
2018-25.6 C (-14.1 F)
2019-8.3 C (17.1 F)
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Charmany Farm by year The wettest day of the year at Charmany Farm, 1959 to 2026. The record is 244.3 mm (9.6 in) in 2018, marked on the chart; the median year is 61.0 mm (2.4 in). 01002003001960198020002020Record: 244.3 mm (9.6 in) in 2018
The wettest day of the year at Charmany Farm, 1959 to 2026. The record is 244.3 mm (9.6 in) in 2018, marked on the chart; the median year is 61.0 mm (2.4 in).
Wettest day (Rx1day) at Charmany Farm by year
YearWettest day (Rx1day)
195968.6 mm (2.7 in)
196334.0 mm (1.3 in)
196467.3 mm (2.6 in)
196550.0 mm (2.0 in)
196657.9 mm (2.3 in)
196748.3 mm (1.9 in)
196882.6 mm (3.3 in)
196991.4 mm (3.6 in)
197073.4 mm (2.9 in)
197143.9 mm (1.7 in)
197236.1 mm (1.4 in)
197357.2 mm (2.3 in)
197443.2 mm (1.7 in)
197555.6 mm (2.2 in)
197650.5 mm (2.0 in)
1977111.8 mm (4.4 in)
197879.0 mm (3.1 in)
197943.7 mm (1.7 in)
198041.4 mm (1.6 in)
198166.0 mm (2.6 in)
198250.8 mm (2.0 in)
198353.3 mm (2.1 in)
198476.5 mm (3.0 in)
198547.0 mm (1.9 in)
198661.0 mm (2.4 in)
198761.0 mm (2.4 in)
198849.5 mm (1.9 in)
198962.7 mm (2.5 in)
199066.0 mm (2.6 in)
199172.1 mm (2.8 in)
199241.9 mm (1.6 in)
199391.9 mm (3.6 in)
199461.0 mm (2.4 in)
199541.1 mm (1.6 in)
199691.4 mm (3.6 in)
199750.0 mm (2.0 in)
199874.9 mm (2.9 in)
199965.0 mm (2.6 in)
200079.2 mm (3.1 in)
2001148.6 mm (5.9 in)
200231.2 mm (1.2 in)
200390.2 mm (3.6 in)
2004105.4 mm (4.1 in)
200537.1 mm (1.5 in)
200652.1 mm (2.1 in)
200783.1 mm (3.3 in)
200885.9 mm (3.4 in)
200980.0 mm (3.1 in)
201096.5 mm (3.8 in)
201140.4 mm (1.6 in)
201241.4 mm (1.6 in)
201359.9 mm (2.4 in)
201463.0 mm (2.5 in)
201555.9 mm (2.2 in)
201688.1 mm (3.5 in)
201798.3 mm (3.9 in)
2018244.3 mm (9.6 in)
201967.8 mm (2.7 in)
202062.2 mm (2.4 in)
202148.0 mm (1.9 in)
202251.8 mm (2.0 in)
202350.8 mm (2.0 in)
202463.8 mm (2.5 in)
202561.0 mm (2.4 in)
202649.5 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Charmany Farm by year The wettest five days of the year at Charmany Farm, 1959 to 2026. The record is 282.9 mm (11.1 in) in 2018, marked on the chart; the median year is 94.0 mm (3.7 in). 01002003001960198020002020Record: 282.9 mm (11.1 in) in 2018
The wettest five days of the year at Charmany Farm, 1959 to 2026. The record is 282.9 mm (11.1 in) in 2018, marked on the chart; the median year is 94.0 mm (3.7 in).
Wettest five days (Rx5day) at Charmany Farm by year
YearWettest five days (Rx5day)
195994.6 mm (3.7 in)
196340.7 mm (1.6 in)
196488.9 mm (3.5 in)
1965103.3 mm (4.1 in)
196679.2 mm (3.1 in)
1967101.7 mm (4.0 in)
1968149.1 mm (5.9 in)
1969139.5 mm (5.5 in)
197083.2 mm (3.3 in)
197164.8 mm (2.6 in)
197264.0 mm (2.5 in)
197383.8 mm (3.3 in)
197460.5 mm (2.4 in)
197582.3 mm (3.2 in)
197684.0 mm (3.3 in)
1977179.9 mm (7.1 in)
1978125.4 mm (4.9 in)
197990.5 mm (3.6 in)
198074.4 mm (2.9 in)
198190.6 mm (3.6 in)
198270.6 mm (2.8 in)
198366.2 mm (2.6 in)
1984112.2 mm (4.4 in)
198576.0 mm (3.0 in)
198681.6 mm (3.2 in)
198799.6 mm (3.9 in)
198865.9 mm (2.6 in)
1989100.0 mm (3.9 in)
199095.3 mm (3.8 in)
199194.0 mm (3.7 in)
199279.5 mm (3.1 in)
1993145.5 mm (5.7 in)
199495.6 mm (3.8 in)
199571.1 mm (2.8 in)
1996164.3 mm (6.5 in)
199772.1 mm (2.8 in)
199895.0 mm (3.7 in)
1999102.9 mm (4.1 in)
2000143.5 mm (5.6 in)
2001151.1 mm (5.9 in)
200267.3 mm (2.6 in)
2003139.3 mm (5.5 in)
2004159.5 mm (6.3 in)
200557.0 mm (2.2 in)
2006113.3 mm (4.5 in)
2007159.3 mm (6.3 in)
2008144.3 mm (5.7 in)
200984.1 mm (3.3 in)
2010119.9 mm (4.7 in)
201168.4 mm (2.7 in)
201266.0 mm (2.6 in)
2013168.9 mm (6.6 in)
2014112.1 mm (4.4 in)
201580.7 mm (3.2 in)
2016136.9 mm (5.4 in)
2017121.4 mm (4.8 in)
2018282.9 mm (11.1 in)
2019102.9 mm (4.1 in)
202085.3 mm (3.4 in)
202190.5 mm (3.6 in)
202280.0 mm (3.1 in)
202367.0 mm (2.6 in)
202495.6 mm (3.8 in)
202598.8 mm (3.9 in)
202666.3 mm (2.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Charmany Farm by year The longest dry spell of the year at Charmany Farm, 1959 to 2026. The record is 41 days in 1981, marked on the chart; the median year is 21 days. 10203040501960198020002020Record: 41 days in 1981
The longest dry spell of the year at Charmany Farm, 1959 to 2026. The record is 41 days in 1981, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Charmany Farm by year
YearLongest dry spell (CDD)
195923 days
196317 days
196424 days
196519 days
196625 days
196724 days
196832 days
196925 days
197020 days
197124 days
197221 days
197319 days
197415 days
197520 days
197626 days
197718 days
197828 days
197915 days
198017 days
198141 days
198218 days
198318 days
198434 days
198518 days
198620 days
198729 days
198839 days
198921 days
199015 days
199128 days
199221 days
199322 days
199422 days
199541 days
199628 days
199710 days
199819 days
199925 days
200017 days
200125 days
200215 days
200323 days
200420 days
200517 days
200617 days
200726 days
200814 days
200926 days
201021 days
201116 days
201230 days
201319 days
201413 days
201518 days
201619 days
201715 days
201819 days
201927 days
202017 days
202121 days
202225 days
202324 days
202422 days
202520 days
202629 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

49 years with a frost

Across 49 years with a frost, the median last spring frost at Charmany Farm falls on 28 April and the median first autumn frost on 11 October, which leaves a median of 167 days between them.

Fitted over all years, the growing season changes by +4.4 days per decade at this station.

Frost dates and growing season at Charmany Farm
MeasureMedian, all yearsEarliest periodRecent period (1986 to 2018)Recent against earliestFitted trend
Last spring frost28 Apriln/a28 Apriln/a-1.8 days per decade
First autumn frost11 Octobern/a12 Octobern/a+2.6 days per decade
Growing days167 daysn/a174 daysn/a+4.4 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

60 years, 1964 to 2025

A day with at least 60.4 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 184.2 mm (7.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Charmany Farm: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years60.4 mm (2.4 in)
5 years83.0 mm (3.3 in)
10 years101.5 mm (4.0 in)
25 years129.8 mm (5.1 in)
50 years154.9 mm (6.1 in)
100 years184.2 mm (7.3 in)Longer than the 60 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, 60 years of values from 1964 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: 244.3 mm (9.6 in) in 2018; 148.6 mm (5.9 in) in 2001; 111.8 mm (4.4 in) in 1977.

Station Changes

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

Climate Twins

2003 to 2018 against 1961 to 1990

Over 2003 to 2018, Charmany Farm had a mean temperature of 8.5 C (47.3 F) and 1,016.6 mm (40.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Rockford Gtr Rockford AP (United States, 101 km away), Whitehall (United States, 1,300 km away) and Paw Paw 2S (United States, 160 km away).

Climate twins of Charmany Farm: stations whose 1961 to 1990 climate is closest to its 2003 to 2018 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Rockford Gtr Rockford APUnited States101 km (63 mi)8.7 C (47.7 F)942.7 mm (37.1 in)0.53
WhitehallUnited States1,300 km (808 mi)8.4 C (47.1 F)959.5 mm (37.8 in)0.55
Paw Paw 2SUnited States160 km (99 mi)8.4 C (47.1 F)907.5 mm (35.7 in)0.58

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 Charmany Farm standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Charmany Farm 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). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).