Built 2026-10-16 (16 October 2026)

Powhatan Weather Records (USC00446906)

Record envelope, standing records and threshold days for Powhatan (USC00446906), Virginia, United States, with 90 years of record.

Key Facts for Powhatan

  • Powhatan (USC00446906) is a weather station in Virginia, United States at 37.51 latitude and -77.89 longitude, 122 m (400 ft) above sea level.
  • The station reports from 1923 to 2012, 90 years of record.
  • 1,464 records set at Powhatan still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Powhatan set a daily record precipitation of 40.9 mm (1.6 in) on 8 December 2011.

About the Station

  • Location: Virginia, United States, 37.51 latitude, -77.89 longitude.
  • Elevation: 122 m (400 ft).
  • Period of record: 1923 to 2012, 90 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 Powhatan, with 2026 drawn through them The band shows the record high and record low for each calendar day at Powhatan. The lines show the 2026 daily maximum and minimum. 0 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 Powhatan. 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 Powhatan, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan24.4 C (75.9 F)-21.1 C (-6.0 F)n/an/a
Feb25.6 C (78.1 F)-18.9 C (-2.0 F)n/an/a
Mar32.2 C (90.0 F)-15.0 C (5.0 F)n/an/a
Apr34.4 C (93.9 F)-6.7 C (19.9 F)n/an/a
May34.4 C (93.9 F)-2.8 C (27.0 F)n/an/a
Jun38.3 C (100.9 F)3.9 C (39.0 F)n/an/a
Jul40.0 C (104.0 F)7.2 C (45.0 F)n/an/a
Aug40.0 C (104.0 F)5.6 C (42.1 F)n/an/a
Sep40.6 C (105.1 F)0.0 C (32.0 F)n/an/a
Oct34.4 C (93.9 F)-8.3 C (17.1 F)n/an/a
Nov30.0 C (86.0 F)-12.2 C (10.0 F)n/an/a
Dec25.6 C (78.1 F)-21.1 C (-6.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Powhatan by the year they were set 1,464 records at Powhatan still stand. 1954 holds the most, with 110. 0501001501950: 211951: 811952: 801953: 901954: 1101955: 531956: 921957: 831958: 701959: 971960: 741961: 761962: 721963: 791964: 741965: 691966: 711967: 731968: 691969: 301950195219541956195819601962196419661968
1,464 records at Powhatan still stand. 1954 holds the most, with 110.
Standing records at Powhatan by the year they were set
Year setStanding records
195021
195181
195280
195390
1954110
195553
195692
195783
195870
195997
196074
196176
196272
196379
196474
196569
196671
196773
196869
196930

All-Time Record Progression

1 new records
When Powhatan set new all-time records 1 all-time records were set at Powhatan between 31 August 2006 and 31 August 2006. Each dot is a new record. Record daily precipitation31 August 2006: Record daily precipitation 162.8 mm (6.4 in)
1 all-time records were set at Powhatan between 31 August 2006 and 31 August 2006. Each dot is a new record.
When Powhatan set new all-time records
DateKindDetail
2006-08-31Record daily precipitationRecord daily precipitation 162.8 mm (6.4 in)

Wettest Day of Each Month

Aug: 162.8 mm (6.4 in)
Record daily precipitation for each month at Powhatan The wettest day on record for each calendar month at Powhatan. The most was 162.8 mm (6.4 in) on 31 August 2006. 050100150200 Jan: 71.6 mm (2.8 in), 22 January 1954 Jan Feb: 76.2 mm (3.0 in), 14 February 1984 Feb Mar: 59.9 mm (2.4 in), 29 March 1984 Mar Apr: 73.2 mm (2.9 in), 17 April 1993 Apr May: 71.1 mm (2.8 in), 29 May 1990 May Jun: 64.8 mm (2.6 in), 21 June 1961 Jun Jul: 129.8 mm (5.1 in), 11 July 1995 Jul Aug: 162.8 mm (6.4 in), 31 August 2006 Aug Sep: 129.8 mm (5.1 in), 19 September 2003 Sep Oct: 122.4 mm (4.8 in), 21 October 1961 Oct Nov: 125.7 mm (4.9 in), 4 November 1985 Nov Dec: 96.5 mm (3.8 in), 29 December 1958 Dec
The wettest day on record for each calendar month at Powhatan. The most was 162.8 mm (6.4 in) on 31 August 2006.
Record daily precipitation for each month at Powhatan
MonthRecord daily precipitation (mm)Date
Jan71.6 mm (2.8 in)22 January 1954
Feb76.2 mm (3.0 in)14 February 1984
Mar59.9 mm (2.4 in)29 March 1984
Apr73.2 mm (2.9 in)17 April 1993
May71.1 mm (2.8 in)29 May 1990
Jun64.8 mm (2.6 in)21 June 1961
Jul129.8 mm (5.1 in)11 July 1995
Aug162.8 mm (6.4 in)31 August 2006
Sep129.8 mm (5.1 in)19 September 2003
Oct122.4 mm (4.8 in)21 October 1961
Nov125.7 mm (4.9 in)4 November 1985
Dec96.5 mm (3.8 in)29 December 1958

Period of Record Coverage

1950 to 1969
Days with data per year at Powhatan 20 years of record at Powhatan, 1950 to 1969. 3 years have data for under 90 percent of days and are left out of rankings: 1950, 1954, 1969. 1950: 92 of 365 days1951: 364 of 365 days1952: 366 of 366 days1953: 364 of 365 days1954: 319 of 365 days1955: 358 of 365 days1956: 353 of 366 days1957: 350 of 365 days1958: 352 of 365 days1959: 353 of 365 days1960: 354 of 366 days1961: 338 of 365 days1962: 344 of 365 days1963: 362 of 365 days1964: 355 of 366 days1965: 359 of 365 days1966: 357 of 365 days1967: 360 of 365 days1968: 365 of 366 days1969: 209 of 365 days1950195519601965
20 years of record at Powhatan, 1950 to 1969. 3 years have data for under 90 percent of days and are left out of rankings: 1950, 1954, 1969.
Days with data per year at Powhatan
YearDays with dataShare of yearComplete
19509225%No
1951364100%Yes
1952366100%Yes
1953364100%Yes
195431987%No
195535898%Yes
195635396%Yes
195735096%Yes
195835296%Yes
195935397%Yes
196035497%Yes
196133893%Yes
196234494%Yes
196336299%Yes
196435597%Yes
196535998%Yes
196635798%Yes
196736099%Yes
1968365100%Yes
196920957%No

Latest Records

20
Latest records at Powhatan
DateStationRecordValueBeat old record byOld record stoodSignificance
8 December 2011Powhatan, USdaily rain40.9 mm (1.6 in)14.2 mm (0.6 in)14 years23 of 100 (Routine)
17 November 2011Powhatan, USdaily rain46.2 mm (1.8 in)10.6 mm (0.4 in)76 years37 of 100 (Notable)
13 October 2011Powhatan, USdaily rain21.8 mm (0.9 in)7.1 mm (0.28 in)20 years18 of 100 (Routine)
24 September 2011Powhatan, USdaily rain45.0 mm (1.8 in)23.4 mm (0.9 in)45 years34 of 100 (Routine)
7 July 2011Powhatan, USdaily rain89.9 mm (3.5 in)50.3 mm (2.0 in)16 years46 of 100 (Notable)
12 June 2011Powhatan, USdaily rain47.0 mm (1.9 in)12.2 mm (0.5 in)4 years19 of 100 (Routine)
30 December 2010Powhatan, USdaily rain14.7 mm (0.6 in)6.3 mm (0.25 in)85 years20 of 100 (Routine)
30 September 2010Powhatan, USdaily rain67.3 mm (2.6 in)9.9 mm (0.39 in)85 years38 of 100 (Notable)
9 April 2010Powhatan, USdaily rain25.4 mm (1.0 in)0.5 mm (0.02 in)9 years10 of 100 (Routine)
30 January 2010Powhatan, USdaily rain35.8 mm (1.4 in)20.1 mm (0.8 in)71 years47 of 100 (Notable)
18 January 2010Powhatan, USdaily rain31.5 mm (1.2 in)4.3 mm (0.17 in)84 years36 of 100 (Notable)
15 December 2009Powhatan, USdaily rain46.5 mm (1.8 in)30.0 mm (1.2 in)52 years47 of 100 (Notable)
9 December 2009Powhatan, USdaily rain51.8 mm (2.0 in)16.5 mm (0.6 in)78 years44 of 100 (Notable)
3 December 2009Powhatan, USdaily rain35.1 mm (1.4 in)2.8 mm (0.11 in)42 years22 of 100 (Routine)
13 November 2009Powhatan, USdaily rain50.8 mm (2.0 in)12.7 mm (0.5 in)4 years17 of 100 (Routine)
12 November 2009Powhatan, USdaily rain60.7 mm (2.4 in)14.5 mm (0.6 in)3 years18 of 100 (Routine)
26 September 2009Powhatan, USdaily rain44.7 mm (1.8 in)6.1 mm (0.24 in)0 years11 of 100 (Routine)
8 September 2009Powhatan, USdaily rain30.7 mm (1.2 in)14.2 mm (0.6 in)52 years31 of 100 (Routine)
24 August 2009Powhatan, USdaily rain71.1 mm (2.8 in)8.9 mm (0.35 in)42 years24 of 100 (Routine)
2 March 2009Powhatan, USdaily rain45.7 mm (1.8 in)14.7 mm (0.6 in)15 years25 of 100 (Routine)

Climate Trend

16 complete years, 1951 to 1968
Annual mean temperature at Powhatan as warming stripes, 1951 to 1968 One stripe for each of 16 complete years at Powhatan, 1951 to 1968. Blue stripes are years cooler than the station's own mean of 13.6 C (56.5 F); red stripes are warmer. The coolest year was 1958, at 12.7 C (54.8 F), and the warmest was 1957, at 14.5 C (58.2 F). The strongest colour marks a difference of 1.0 C (1.8 F). 1951: 13.6 C, 0.0 C from the station mean1952: 13.2 C, -0.4 C from the station mean1953: 14.3 C, +0.7 C from the station mean1955: 14.0 C, +0.4 C from the station mean1956: 14.4 C, +0.8 C from the station mean1957: 14.5 C, +1.0 C from the station mean1958: 12.7 C, -0.9 C from the station mean1959: 14.5 C, +0.9 C from the station mean1960: 13.3 C, -0.3 C from the station mean1962: 13.0 C, -0.6 C from the station mean1963: 13.0 C, -0.6 C from the station mean1964: 13.6 C, 0.0 C from the station mean1965: 13.8 C, +0.2 C from the station mean1966: 13.1 C, -0.5 C from the station mean1967: 13.0 C, -0.6 C from the station mean1968: 13.6 C, 0.0 C from the station mean195119541956195819601962196419661968
One stripe for each of 16 complete years at Powhatan, 1951 to 1968. Blue stripes are years cooler than the station's own mean of 13.6 C (56.5 F); red stripes are warmer. The coolest year was 1958, at 12.7 C (54.8 F), and the warmest was 1957, at 14.5 C (58.2 F). The strongest colour marks a difference of 1.0 C (1.8 F).
Annual mean temperature at Powhatan as warming stripes, 1951 to 1968
YearAnnual mean temperatureDifference from the station mean
195113.6 C-0.04 C
195213.2 C-0.40 C
195314.3 C+0.71 C
195514.0 C+0.42 C
195614.4 C+0.76 C
195714.5 C+0.95 C
195812.7 C-0.90 C
195914.5 C+0.88 C
196013.3 C-0.27 C
196213.0 C-0.59 C
196313.0 C-0.60 C
196413.6 C-0.02 C
196513.8 C+0.22 C
196613.1 C-0.54 C
196713.0 C-0.62 C
196813.6 C-0.02 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

1923 to 2012
Yearly extremes at Powhatan: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)195437.2 C (99.0 F)20
Coldest night (TNn)-21.1 C (-6.0 F)1958-17.5 C (0.5 F)20
Wettest day (Rx1day)162.8 mm (6.4 in)200660.9 mm (2.4 in)74
Wettest five days (Rx5day)317.8 mm (12.5 in)2006105.3 mm (4.1 in)74
Longest dry spell (CDD)56 days193619 days74

Hottest day (TXx)

Hottest day (TXx) at Powhatan by year The hottest day of the year at Powhatan, 1923 to 2012. The record is 40.6 C (105.1 F) in 1954, marked on the chart; the median year is 37.2 C (99.0 F). 303540451940196019802000Record: 40.6 C (105.1 F) in 1954
The hottest day of the year at Powhatan, 1923 to 2012. The record is 40.6 C (105.1 F) in 1954, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Powhatan by year
YearHottest day (TXx)
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
195030.0 C (86.0 F)
195136.7 C (98.1 F)
195238.3 C (100.9 F)
195339.4 C (102.9 F)
195440.6 C (105.1 F)
195536.7 C (98.1 F)
195637.2 C (99.0 F)
195737.8 C (100.0 F)
195835.6 C (96.1 F)
195937.8 C (100.0 F)
196037.8 C (100.0 F)
196136.7 C (98.1 F)
196236.1 C (97.0 F)
196337.2 C (99.0 F)
196437.2 C (99.0 F)
196536.7 C (98.1 F)
196637.8 C (100.0 F)
196733.9 C (93.0 F)
196837.2 C (99.0 F)
196936.7 C (98.1 F)
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
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a

Coldest night (TNn)

Coldest night (TNn) at Powhatan by year The coldest night of the year at Powhatan, 1923 to 2012. The record is -21.1 C (-6.0 F) in 1958, marked on the chart; the median year is -17.5 C (0.5 F). -22.5-20-17.5-15-12.5-101940196019802000Record: -21.1 C (-6.0 F) in 1958
The coldest night of the year at Powhatan, 1923 to 2012. The record is -21.1 C (-6.0 F) in 1958, marked on the chart; the median year is -17.5 C (0.5 F).
Coldest night (TNn) at Powhatan by year
YearColdest night (TNn)
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1950-13.3 C (8.1 F)
1951-16.7 C (1.9 F)
1952-14.4 C (6.1 F)
1953-15.6 C (3.9 F)
1954-15.6 C (3.9 F)
1955-16.1 C (3.0 F)
1956-11.7 C (10.9 F)
1957-20.0 C (-4.0 F)
1958-21.1 C (-6.0 F)
1959-20.0 C (-4.0 F)
1960-16.7 C (1.9 F)
1961-21.1 C (-6.0 F)
1962-19.4 C (-2.9 F)
1963-17.8 C (0.0 F)
1964-20.6 C (-5.1 F)
1965-20.0 C (-4.0 F)
1966-19.4 C (-2.9 F)
1967-17.8 C (0.0 F)
1968-17.2 C (1.0 F)
1969-15.6 C (3.9 F)
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
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Powhatan by year The wettest day of the year at Powhatan, 1923 to 2012. The record is 162.8 mm (6.4 in) in 2006, marked on the chart; the median year is 60.9 mm (2.4 in). 0501001502001940196019802000Record: 162.8 mm (6.4 in) in 2006
The wettest day of the year at Powhatan, 1923 to 2012. The record is 162.8 mm (6.4 in) in 2006, marked on the chart; the median year is 60.9 mm (2.4 in).
Wettest day (Rx1day) at Powhatan by year
YearWettest day (Rx1day)
192352.6 mm (2.1 in)
192458.4 mm (2.3 in)
192542.9 mm (1.7 in)
192675.7 mm (3.0 in)
192740.4 mm (1.6 in)
1928139.7 mm (5.5 in)
192991.7 mm (3.6 in)
193042.4 mm (1.7 in)
193151.6 mm (2.0 in)
193243.4 mm (1.7 in)
193357.9 mm (2.3 in)
193491.4 mm (3.6 in)
193547.0 mm (1.9 in)
193648.8 mm (1.9 in)
193766.0 mm (2.6 in)
193843.2 mm (1.7 in)
193959.2 mm (2.3 in)
1940100.6 mm (4.0 in)
194168.3 mm (2.7 in)
194260.5 mm (2.4 in)
195034.8 mm (1.4 in)
195159.4 mm (2.3 in)
195277.2 mm (3.0 in)
195340.1 mm (1.6 in)
195478.7 mm (3.1 in)
195594.0 mm (3.7 in)
195663.5 mm (2.5 in)
195767.3 mm (2.6 in)
1958151.1 mm (5.9 in)
195978.7 mm (3.1 in)
196046.2 mm (1.8 in)
1961122.4 mm (4.8 in)
196263.5 mm (2.5 in)
196360.5 mm (2.4 in)
196448.3 mm (1.9 in)
196544.5 mm (1.8 in)
196661.0 mm (2.4 in)
196762.2 mm (2.4 in)
196859.7 mm (2.4 in)
196992.7 mm (3.6 in)
197967.3 mm (2.6 in)
198057.2 mm (2.3 in)
198153.3 mm (2.1 in)
198253.1 mm (2.1 in)
198360.7 mm (2.4 in)
198476.2 mm (3.0 in)
1985125.7 mm (4.9 in)
198642.2 mm (1.7 in)
198756.9 mm (2.2 in)
198848.3 mm (1.9 in)
198966.0 mm (2.6 in)
199071.1 mm (2.8 in)
199191.4 mm (3.6 in)
199258.9 mm (2.3 in)
1993116.8 mm (4.6 in)
199448.3 mm (1.9 in)
1995129.8 mm (5.1 in)
199694.0 mm (3.7 in)
199738.1 mm (1.5 in)
199855.1 mm (2.2 in)
199990.2 mm (3.6 in)
200066.0 mm (2.6 in)
200157.2 mm (2.3 in)
200257.9 mm (2.3 in)
2003129.8 mm (5.1 in)
200459.4 mm (2.3 in)
200560.2 mm (2.4 in)
2006162.8 mm (6.4 in)
2007101.6 mm (4.0 in)
200876.2 mm (3.0 in)
200971.1 mm (2.8 in)
201067.3 mm (2.6 in)
201189.9 mm (3.5 in)
201248.5 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Powhatan by year The wettest five days of the year at Powhatan, 1923 to 2012. The record is 317.8 mm (12.5 in) in 2006, marked on the chart; the median year is 105.3 mm (4.1 in). 01002003004001940196019802000Record: 317.8 mm (12.5 in) in 2006
The wettest five days of the year at Powhatan, 1923 to 2012. The record is 317.8 mm (12.5 in) in 2006, marked on the chart; the median year is 105.3 mm (4.1 in).
Wettest five days (Rx5day) at Powhatan by year
YearWettest five days (Rx5day)
192378.0 mm (3.1 in)
1924117.4 mm (4.6 in)
192559.4 mm (2.3 in)
1926126.3 mm (5.0 in)
192770.9 mm (2.8 in)
1928180.1 mm (7.1 in)
1929126.2 mm (5.0 in)
193057.4 mm (2.3 in)
193174.7 mm (2.9 in)
193279.2 mm (3.1 in)
193384.5 mm (3.3 in)
1934113.5 mm (4.5 in)
193583.1 mm (3.3 in)
193676.7 mm (3.0 in)
1937119.4 mm (4.7 in)
1938129.5 mm (5.1 in)
1939117.1 mm (4.6 in)
1940199.0 mm (7.8 in)
194168.3 mm (2.7 in)
1942103.9 mm (4.1 in)
195053.8 mm (2.1 in)
195194.8 mm (3.7 in)
1952106.6 mm (4.2 in)
195367.4 mm (2.7 in)
195482.5 mm (3.2 in)
1955163.8 mm (6.4 in)
195686.4 mm (3.4 in)
195788.9 mm (3.5 in)
1958154.9 mm (6.1 in)
1959134.1 mm (5.3 in)
1960101.1 mm (4.0 in)
1961178.3 mm (7.0 in)
196287.1 mm (3.4 in)
1963100.3 mm (3.9 in)
1964106.7 mm (4.2 in)
196579.1 mm (3.1 in)
1966118.4 mm (4.7 in)
1967135.6 mm (5.3 in)
196870.6 mm (2.8 in)
1969133.5 mm (5.3 in)
1979118.6 mm (4.7 in)
198088.5 mm (3.5 in)
198159.7 mm (2.4 in)
198285.2 mm (3.4 in)
198381.5 mm (3.2 in)
1984121.6 mm (4.8 in)
1985195.8 mm (7.7 in)
198672.3 mm (2.8 in)
198797.3 mm (3.8 in)
198861.0 mm (2.4 in)
198999.3 mm (3.9 in)
1990111.2 mm (4.4 in)
1991138.4 mm (5.4 in)
199284.0 mm (3.3 in)
1993118.1 mm (4.6 in)
1994102.7 mm (4.0 in)
1995175.5 mm (6.9 in)
1996156.8 mm (6.2 in)
199771.2 mm (2.8 in)
1998117.3 mm (4.6 in)
1999115.6 mm (4.6 in)
200080.6 mm (3.2 in)
200194.0 mm (3.7 in)
2002122.2 mm (4.8 in)
2003215.4 mm (8.5 in)
200497.2 mm (3.8 in)
2005114.8 mm (4.5 in)
2006317.8 mm (12.5 in)
2007121.7 mm (4.8 in)
2008117.3 mm (4.6 in)
2009134.8 mm (5.3 in)
2010125.2 mm (4.9 in)
2011184.6 mm (7.3 in)
201263.5 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Powhatan by year The longest dry spell of the year at Powhatan, 1923 to 2012. The record is 56 days in 1936, marked on the chart; the median year is 19 days. 02040601940196019802000Record: 56 days in 1936
The longest dry spell of the year at Powhatan, 1923 to 2012. The record is 56 days in 1936, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Powhatan by year
YearLongest dry spell (CDD)
192325 days
192426 days
192518 days
192621 days
192718 days
192816 days
192911 days
193018 days
193120 days
193219 days
193319 days
193421 days
193513 days
193656 days
193713 days
193829 days
193914 days
194013 days
194134 days
194216 days
195017 days
195114 days
195223 days
195330 days
195428 days
195516 days
195621 days
195724 days
195823 days
195924 days
196015 days
196114 days
196219 days
196319 days
196430 days
196523 days
196625 days
196721 days
196826 days
196919 days
197911 days
198014 days
198121 days
198222 days
198315 days
198416 days
198524 days
198618 days
198733 days
198817 days
198919 days
199020 days
199121 days
199217 days
199317 days
199425 days
199519 days
199614 days
199718 days
199825 days
199919 days
200038 days
200141 days
200223 days
200317 days
200419 days
200529 days
200626 days
200727 days
200829 days
200938 days
201017 days
201117 days
201218 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

64 years, 1923 to 2011

A day with at least 65.1 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 189.6 mm (7.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Powhatan: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years65.1 mm (2.6 in)
5 years89.1 mm (3.5 in)
10 years108.2 mm (4.3 in)
25 years136.7 mm (5.4 in)
50 years161.5 mm (6.4 in)
100 years189.6 mm (7.5 in)Longer than the 64 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, 64 years of values from 1923 to 2011.

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: 162.8 mm (6.4 in) in 2006; 151.1 mm (5.9 in) in 1958; 139.7 mm (5.5 in) in 1928.

Download the Data

  • Data for Powhatan standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Powhatan 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 (2025-12-31).