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Free Union Weather Records (USC00443213)

Record envelope, standing records and threshold days for Free Union (USC00443213), Virginia, United States, with 72 years of record.

Key Facts for Free Union

  • Free Union (USC00443213) is a weather station in Virginia, United States at 38.09 latitude and -78.59 longitude, 180 m (590 ft) above sea level.
  • The station reports from 1955 to 2026, 72 years of record.
  • 1,464 records set at Free Union still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Free Union set a daily record precipitation of 35.1 mm (1.4 in) on 23 August 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Virginia, United States, 38.09 latitude, -78.59 longitude.
  • Elevation: 180 m (590 ft).
  • Period of record: 1955 to 2026, 72 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Free Union, with 2026 drawn through them The band shows the record high and record low for each calendar day at Free Union. 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 Free Union. 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 Free Union, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan25.6 C (78.1 F)-20.0 C (-4.0 F)n/an/a
Feb27.8 C (82.0 F)-21.1 C (-6.0 F)n/an/a
Mar30.6 C (87.1 F)-17.8 C (0.0 F)n/an/a
Apr35.0 C (95.0 F)-5.6 C (21.9 F)n/an/a
May33.9 C (93.0 F)-1.7 C (28.9 F)n/an/a
Jun36.1 C (97.0 F)6.1 C (43.0 F)n/an/a
Jul37.2 C (99.0 F)10.0 C (50.0 F)n/an/a
Aug35.6 C (96.1 F)6.7 C (44.1 F)n/an/a
Sep35.6 C (96.1 F)3.3 C (37.9 F)n/an/a
Oct34.4 C (93.9 F)-3.3 C (26.1 F)n/an/a
Nov30.0 C (86.0 F)-11.1 C (12.0 F)n/an/a
Dec25.6 C (78.1 F)-16.7 C (1.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Free Union by the year they were set 1,464 records at Free Union still stand. 2018 holds the most, with 125. 0501001502007: 222008: 782009: 662010: 822011: 702012: 772013: 1002014: 982015: 992016: 892017: 932018: 1252019: 782020: 702021: 472022: 602023: 712024: 622025: 772007200920112013201520172019202120232025
1,464 records at Free Union still stand. 2018 holds the most, with 125.
Standing records at Free Union by the year they were set
Year setStanding records
200722
200878
200966
201082
201170
201277
2013100
201498
201599
201689
201793
2018125
201978
202070
202147
202260
202371
202462
202577

All-Time Record Progression

6 new records
When Free Union set new all-time records 6 all-time records were set at Free Union between 9 September 1987 and 31 May 2018. Each dot is a new record. Record daily precipitationRecord daily snowfallRecord snow depth9 September 1987: Record daily precipitation 174.5 mm (6.9 in)14 March 1993: Record daily snowfall 33.0 cm (13.0 in)7 January 1996: Record daily snowfall 35.6 cm (14.0 in)7 February 2010: Record snow depth 43.2 cm (17.0 in)10 February 2010: Record snow depth 48.3 cm (19.0 in)31 May 2018: Record daily precipitation 180.8 mm (7.1 in)199019952000200520102015
6 all-time records were set at Free Union between 9 September 1987 and 31 May 2018. Each dot is a new record.
When Free Union set new all-time records
DateKindDetail
1987-09-09Record daily precipitationRecord daily precipitation 174.5 mm (6.9 in)
1993-03-14Record daily snowfallRecord daily snowfall 33.0 cm (13.0 in)
1996-01-07Record daily snowfallRecord daily snowfall 35.6 cm (14.0 in)
2010-02-07Record snow depthRecord snow depth 43.2 cm (17.0 in)
2010-02-10Record snow depthRecord snow depth 48.3 cm (19.0 in)
2018-05-31Record daily precipitationRecord daily precipitation 180.8 mm (7.1 in)

Wettest Day of Each Month

May: 180.8 mm (7.1 in)
Record daily precipitation for each month at Free Union The wettest day on record for each calendar month at Free Union. The most was 180.8 mm (7.1 in) on 31 May 2018. 050100150200 Jan: 73.4 mm (2.9 in), 10 January 2024 Jan Feb: 66.0 mm (2.6 in), 8 February 1965 Feb Mar: 73.7 mm (2.9 in), 7 March 1967 Mar Apr: 103.4 mm (4.1 in), 22 April 1992 Apr May: 180.8 mm (7.1 in), 31 May 2018 May Jun: 160.0 mm (6.3 in), 22 June 1972 Jun Jul: 120.7 mm (4.8 in), 13 July 1964 Jul Aug: 127.8 mm (5.0 in), 9 August 2024 Aug Sep: 174.5 mm (6.9 in), 9 September 1987 Sep Oct: 152.4 mm (6.0 in), 6 October 1972 Oct Nov: 110.0 mm (4.3 in), 28 November 1993 Nov Dec: 78.0 mm (3.1 in), 11 December 1992 Dec
The wettest day on record for each calendar month at Free Union. The most was 180.8 mm (7.1 in) on 31 May 2018.
Record daily precipitation for each month at Free Union
MonthRecord daily precipitation (mm)Date
Jan73.4 mm (2.9 in)10 January 2024
Feb66.0 mm (2.6 in)8 February 1965
Mar73.7 mm (2.9 in)7 March 1967
Apr103.4 mm (4.1 in)22 April 1992
May180.8 mm (7.1 in)31 May 2018
Jun160.0 mm (6.3 in)22 June 1972
Jul120.7 mm (4.8 in)13 July 1964
Aug127.8 mm (5.0 in)9 August 2024
Sep174.5 mm (6.9 in)9 September 1987
Oct152.4 mm (6.0 in)6 October 1972
Nov110.0 mm (4.3 in)28 November 1993
Dec78.0 mm (3.1 in)11 December 1992

Period of Record Coverage

2007 to 2025
Days with data per year at Free Union 19 years of record at Free Union, 2007 to 2025. 6 years have data for under 90 percent of days and are left out of rankings: 2007, 2008, 2009, 2010, 2011, 2024. 2007: 69 of 365 days2008: 297 of 366 days2009: 274 of 365 days2010: 279 of 365 days2011: 304 of 365 days2012: 366 of 366 days2013: 360 of 365 days2014: 363 of 365 days2015: 345 of 365 days2016: 331 of 366 days2017: 365 of 365 days2018: 364 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 363 of 365 days2024: 327 of 366 days2025: 361 of 365 days2010201520202025
19 years of record at Free Union, 2007 to 2025. 6 years have data for under 90 percent of days and are left out of rankings: 2007, 2008, 2009, 2010, 2011, 2024.
Days with data per year at Free Union
YearDays with dataShare of yearComplete
20076919%No
200829781%No
200927475%No
201027976%No
201130483%No
2012366100%Yes
201336099%Yes
201436399%Yes
201534595%Yes
201633190%Yes
2017365100%Yes
2018364100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
202336399%Yes
202432789%No
202536199%Yes

Latest Records

20
Latest records at Free Union
DateStationRecordValueBeat old record byOld record stoodSignificance
23 August 2026Free Union, USdaily rain (Provisional)35.1 mm (1.4 in)12.2 mm (0.5 in)16 years19 of 100 (Routine)
19 December 2025Free Union, USdaily rain29.0 mm (1.1 in)10.2 mm (0.4 in)30 years24 of 100 (Routine)
9 December 2025Free Union, USdaily snow depth7.6 cm (3.0 in)5.1 cm (2.0 in)30 years20 of 100 (Routine)
8 December 2025Free Union, USdaily snowfall1.0 cm (0.4 in)1.0 cm (0.4 in)70 years20 of 100 (Routine)
20 July 2025Free Union, USdaily rain38.6 mm (1.5 in)3.5 mm (0.14 in)56 years25 of 100 (Routine)
16 June 2025Free Union, USdaily rain50.8 mm (2.0 in)6.9 mm (0.27 in)56 years27 of 100 (Routine)
14 May 2025Free Union, USdaily rain76.7 mm (3.0 in)13.7 mm (0.5 in)47 years30 of 100 (Routine)
8 April 2025Free Union, USdaily rain24.1 mm (0.9 in)0.5 mm (0.02 in)52 years20 of 100 (Routine)
12 February 2025Free Union, USdaily snowfall17.5 cm (6.9 in)0.5 cm (0.2 in)4 years8 of 100 (Routine)
15 January 2025Free Union, USdaily snow depth7.6 cm (3.0 in)2.5 cm (1.0 in)68 years20 of 100 (Routine)
14 January 2025Free Union, USdaily snow depth (Tie)7.6 cm (3.0 in)tie68 years6 of 100 (Routine)
13 January 2025Free Union, USdaily snow depth10.2 cm (4.0 in)5.1 cm (2.0 in)48 years29 of 100 (Routine)
12 January 2025Free Union, USdaily snow depth10.2 cm (4.0 in)2.6 cm (1.0 in)48 years25 of 100 (Routine)
11 January 2025Free Union, USdaily snow depth12.7 cm (5.0 in)5.1 cm (2.0 in)48 years29 of 100 (Routine)
10 January 2025Free Union, USdaily snow depth12.7 cm (5.0 in)5.1 cm (2.0 in)63 years33 of 100 (Routine)
9 January 2025Free Union, USdaily snow depth12.7 cm (5.0 in)5.1 cm (2.0 in)15 years19 of 100 (Routine)
8 January 2025Free Union, USdaily snow depth12.7 cm (5.0 in)2.5 cm (1.0 in)3 years11 of 100 (Routine)
7 January 2025Free Union, USdaily snow depth12.7 cm (5.0 in)2.5 cm (1.0 in)3 years11 of 100 (Routine)
6 January 2025Free Union, USdaily rain25.7 mm (1.0 in)4.6 mm (0.18 in)59 years28 of 100 (Routine)
6 January 2025Free Union, USdaily snowfall12.2 cm (4.8 in)7.1 cm (2.8 in)22 years25 of 100 (Routine)

Climate Trend

11 complete years, 2012 to 2025
Annual mean temperature at Free Union as warming stripes, 2012 to 2025 One stripe for each of 11 complete years at Free Union, 2012 to 2025. Blue stripes are years cooler than the station's own mean of 13.1 C (55.5 F); red stripes are warmer. The coolest year was 2014, at 11.4 C (52.6 F), and the warmest was 2023, at 13.7 C (56.7 F). The strongest colour marks a difference of 1.7 C (3.1 F). 2012: 13.3 C, +0.3 C from the station mean2013: 11.9 C, -1.2 C from the station mean2014: 11.4 C, -1.6 C from the station mean2017: 13.6 C, +0.5 C from the station mean2018: 13.3 C, +0.3 C from the station mean2019: 13.5 C, +0.4 C from the station mean2020: 13.6 C, +0.6 C from the station mean2021: 13.4 C, +0.4 C from the station mean2022: 12.8 C, -0.3 C from the station mean2023: 13.7 C, +0.7 C from the station mean2025: 13.0 C, 0.0 C from the station mean2012201420162018202020222024
One stripe for each of 11 complete years at Free Union, 2012 to 2025. Blue stripes are years cooler than the station's own mean of 13.1 C (55.5 F); red stripes are warmer. The coolest year was 2014, at 11.4 C (52.6 F), and the warmest was 2023, at 13.7 C (56.7 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Free Union as warming stripes, 2012 to 2025
YearAnnual mean temperatureDifference from the station mean
201213.3 C+0.28 C
201311.9 C-1.16 C
201411.4 C-1.63 C
201713.6 C+0.53 C
201813.3 C+0.26 C
201913.5 C+0.44 C
202013.6 C+0.58 C
202113.4 C+0.35 C
202212.8 C-0.27 C
202313.7 C+0.66 C
202513.0 C-0.04 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1955 to 2026
Yearly extremes at Free Union: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)201034.4 C (93.9 F)19
Coldest night (TNn)-21.1 C (-6.0 F)2015-15.6 C (3.9 F)19
Wettest day (Rx1day)180.8 mm (7.1 in)201870.1 mm (2.8 in)71
Wettest five days (Rx5day)292.1 mm (11.5 in)1987110.7 mm (4.4 in)71
Longest dry spell (CDD)40 days200020 days71

Hottest day (TXx)

Hottest day (TXx) at Free Union by year The hottest day of the year at Free Union, 1955 to 2026. The record is 37.2 C (99.0 F) in 2010, marked on the chart; the median year is 34.4 C (93.9 F). 323436381960198020002020Record: 37.2 C (99.0 F) in 2010
The hottest day of the year at Free Union, 1955 to 2026. The record is 37.2 C (99.0 F) in 2010, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Free Union by year
YearHottest day (TXx)
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
200733.3 C (91.9 F)
200835.0 C (95.0 F)
200933.9 C (93.0 F)
201037.2 C (99.0 F)
201135.0 C (95.0 F)
201237.2 C (99.0 F)
201333.9 C (93.0 F)
201432.8 C (91.0 F)
201532.8 C (91.0 F)
201634.4 C (93.9 F)
201734.4 C (93.9 F)
201833.9 C (93.0 F)
201935.0 C (95.0 F)
202034.4 C (93.9 F)
202135.0 C (95.0 F)
202234.4 C (93.9 F)
202335.6 C (96.1 F)
202436.7 C (98.1 F)
202536.1 C (97.0 F)
2026n/a

Coldest night (TNn)

Coldest night (TNn) at Free Union by year The coldest night of the year at Free Union, 1955 to 2026. The record is -21.1 C (-6.0 F) in 2015, marked on the chart; the median year is -15.6 C (3.9 F). -25-20-15-10-51960198020002020Record: -21.1 C (-6.0 F) in 2015
The coldest night of the year at Free Union, 1955 to 2026. The record is -21.1 C (-6.0 F) in 2015, marked on the chart; the median year is -15.6 C (3.9 F).
Coldest night (TNn) at Free Union by year
YearColdest night (TNn)
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2007-8.3 C (17.1 F)
2008-12.8 C (9.0 F)
2009-18.9 C (-2.0 F)
2010-16.7 C (1.9 F)
2011-13.9 C (7.0 F)
2012-11.1 C (12.0 F)
2013-14.4 C (6.1 F)
2014-17.8 C (0.0 F)
2015-21.1 C (-6.0 F)
2016-16.1 C (3.0 F)
2017-15.6 C (3.9 F)
2018-19.4 C (-2.9 F)
2019-15.6 C (3.9 F)
2020-12.2 C (10.0 F)
2021-10.0 C (14.0 F)
2022-16.7 C (1.9 F)
2023-10.6 C (12.9 F)
2024-13.3 C (8.1 F)
2025-20.0 C (-4.0 F)
2026n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Free Union by year The wettest day of the year at Free Union, 1955 to 2026. The record is 180.8 mm (7.1 in) in 2018, marked on the chart; the median year is 70.1 mm (2.8 in). 0501001502001960198020002020Record: 180.8 mm (7.1 in) in 2018
The wettest day of the year at Free Union, 1955 to 2026. The record is 180.8 mm (7.1 in) in 2018, marked on the chart; the median year is 70.1 mm (2.8 in).
Wettest day (Rx1day) at Free Union by year
YearWettest day (Rx1day)
1955119.9 mm (4.7 in)
195696.8 mm (3.8 in)
195781.0 mm (3.2 in)
195849.3 mm (1.9 in)
195990.2 mm (3.6 in)
196053.3 mm (2.1 in)
1961119.4 mm (4.7 in)
196269.3 mm (2.7 in)
196353.3 mm (2.1 in)
1964120.7 mm (4.8 in)
196566.0 mm (2.6 in)
196678.7 mm (3.1 in)
1967120.1 mm (4.7 in)
196858.7 mm (2.3 in)
196995.3 mm (3.8 in)
197051.8 mm (2.0 in)
197178.2 mm (3.1 in)
1972160.0 mm (6.3 in)
197388.4 mm (3.5 in)
197443.2 mm (1.7 in)
197566.0 mm (2.6 in)
197666.0 mm (2.6 in)
197759.9 mm (2.4 in)
197876.2 mm (3.0 in)
197994.0 mm (3.7 in)
198052.8 mm (2.1 in)
198171.6 mm (2.8 in)
198270.1 mm (2.8 in)
198379.8 mm (3.1 in)
198441.9 mm (1.6 in)
198596.0 mm (3.8 in)
198674.4 mm (2.9 in)
1987174.5 mm (6.9 in)
198851.8 mm (2.0 in)
198969.1 mm (2.7 in)
199084.8 mm (3.3 in)
199167.8 mm (2.7 in)
1992103.4 mm (4.1 in)
1993110.0 mm (4.3 in)
199458.9 mm (2.3 in)
199567.8 mm (2.7 in)
199676.2 mm (3.0 in)
199777.7 mm (3.1 in)
199860.5 mm (2.4 in)
1999111.0 mm (4.4 in)
200043.4 mm (1.7 in)
200148.5 mm (1.9 in)
200254.6 mm (2.1 in)
2003122.2 mm (4.8 in)
2004107.4 mm (4.2 in)
200552.1 mm (2.1 in)
200763.2 mm (2.5 in)
2008121.2 mm (4.8 in)
200945.2 mm (1.8 in)
201064.0 mm (2.5 in)
201169.8 mm (2.7 in)
201259.9 mm (2.4 in)
201368.1 mm (2.7 in)
2014104.6 mm (4.1 in)
201561.2 mm (2.4 in)
201640.9 mm (1.6 in)
201789.4 mm (3.5 in)
2018180.8 mm (7.1 in)
201951.8 mm (2.0 in)
202089.4 mm (3.5 in)
202149.8 mm (2.0 in)
202256.4 mm (2.2 in)
202384.3 mm (3.3 in)
2024127.8 mm (5.0 in)
202576.7 mm (3.0 in)
202635.1 mm (1.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Free Union by year The wettest five days of the year at Free Union, 1955 to 2026. The record is 292.1 mm (11.5 in) in 1987, marked on the chart; the median year is 110.7 mm (4.4 in). 01002003001960198020002020Record: 292.1 mm (11.5 in) in 1987
The wettest five days of the year at Free Union, 1955 to 2026. The record is 292.1 mm (11.5 in) in 1987, marked on the chart; the median year is 110.7 mm (4.4 in).
Wettest five days (Rx5day) at Free Union by year
YearWettest five days (Rx5day)
1955156.5 mm (6.2 in)
1956149.9 mm (5.9 in)
195797.5 mm (3.8 in)
195863.3 mm (2.5 in)
1959115.1 mm (4.5 in)
196073.8 mm (2.9 in)
1961144.8 mm (5.7 in)
196280.7 mm (3.2 in)
196354.1 mm (2.1 in)
1964127.6 mm (5.0 in)
196576.0 mm (3.0 in)
196699.1 mm (3.9 in)
1967202.6 mm (8.0 in)
196879.1 mm (3.1 in)
1969107.3 mm (4.2 in)
1970112.3 mm (4.4 in)
1971103.6 mm (4.1 in)
1972219.6 mm (8.6 in)
1973117.5 mm (4.6 in)
197489.7 mm (3.5 in)
1975153.4 mm (6.0 in)
1976123.5 mm (4.9 in)
1977152.9 mm (6.0 in)
197897.0 mm (3.8 in)
1979142.7 mm (5.6 in)
198069.6 mm (2.7 in)
1981175.2 mm (6.9 in)
198289.4 mm (3.5 in)
198350.3 mm (2.0 in)
1984108.8 mm (4.3 in)
1985237.7 mm (9.4 in)
198687.1 mm (3.4 in)
1987292.1 mm (11.5 in)
198877.3 mm (3.0 in)
1989127.8 mm (5.0 in)
1990161.0 mm (6.3 in)
1991145.2 mm (5.7 in)
1992141.2 mm (5.6 in)
1993115.8 mm (4.6 in)
199489.1 mm (3.5 in)
1995157.2 mm (6.2 in)
1996228.6 mm (9.0 in)
1997111.6 mm (4.4 in)
199886.9 mm (3.4 in)
1999135.9 mm (5.4 in)
200079.1 mm (3.1 in)
200180.2 mm (3.2 in)
200270.4 mm (2.8 in)
2003157.5 mm (6.2 in)
2004140.5 mm (5.5 in)
200553.9 mm (2.1 in)
2007130.5 mm (5.1 in)
2008138.0 mm (5.4 in)
200970.0 mm (2.8 in)
201083.4 mm (3.3 in)
2011115.3 mm (4.5 in)
2012128.8 mm (5.1 in)
2013142.6 mm (5.6 in)
2014109.9 mm (4.3 in)
201585.6 mm (3.4 in)
201660.2 mm (2.4 in)
2017110.7 mm (4.4 in)
2018239.8 mm (9.4 in)
201977.8 mm (3.1 in)
202097.6 mm (3.8 in)
2021104.4 mm (4.1 in)
202268.7 mm (2.7 in)
2023102.4 mm (4.0 in)
2024198.6 mm (7.8 in)
2025166.6 mm (6.6 in)
202675.3 mm (3.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Free Union by year The longest dry spell of the year at Free Union, 1955 to 2026. The record is 40 days in 2000, marked on the chart; the median year is 20 days. 0102030401960198020002020Record: 40 days in 2000
The longest dry spell of the year at Free Union, 1955 to 2026. The record is 40 days in 2000, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Free Union by year
YearLongest dry spell (CDD)
195521 days
195620 days
195723 days
195822 days
195922 days
196017 days
196115 days
196224 days
196333 days
196429 days
196520 days
196627 days
196716 days
196826 days
196918 days
197016 days
197120 days
197211 days
197319 days
197418 days
197512 days
197625 days
197728 days
197832 days
197915 days
198016 days
198124 days
198221 days
19837 days
198423 days
198527 days
198622 days
198721 days
198814 days
198918 days
199019 days
199122 days
199220 days
199320 days
199420 days
199515 days
199613 days
199718 days
199820 days
199921 days
200040 days
200140 days
200214 days
200317 days
200428 days
20058 days
200719 days
200834 days
200928 days
201033 days
201117 days
201222 days
201319 days
201421 days
201521 days
201614 days
201722 days
20189 days
201918 days
202014 days
202129 days
202217 days
202319 days
202427 days
202514 days
202615 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.

Rainfall Return Levels

56 years, 1956 to 2025

A day with at least 73.8 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 183.0 mm (7.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Free Union: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years73.8 mm (2.9 in)
5 years99.2 mm (3.9 in)
10 years117.5 mm (4.6 in)
25 years142.3 mm (5.6 in)
50 years162.1 mm (6.4 in)
100 years183.0 mm (7.2 in)Longer than the 56 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, 56 years of values from 1956 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: 180.8 mm (7.1 in) in 2018; 160.0 mm (6.3 in) in 1972; 127.8 mm (5.0 in) in 2024.

Download the Data

  • Data for Free Union standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Free Union 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).