Built 2026-10-18 (18 October 2026)

Williamston 3NE Weather Records (USC00209006)

Record envelope, standing records and threshold days for Williamston 3NE (USC00209006), Michigan, United States, with 119 years of record.

Key Facts for Williamston 3NE

  • Williamston 3NE (USC00209006) is a weather station in Michigan, United States at 42.71 latitude and -84.25 longitude, 273 m (895 ft) above sea level.
  • The station reports from 1892 to 2010, 119 years of record.
  • 1,458 records set at Williamston 3NE still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Williamston 3NE set a daily record snowfall of 12.7 cm (5.0 in) on 13 December 2010.

About the Station

  • Location: Michigan, United States, 42.71 latitude, -84.25 longitude.
  • Elevation: 273 m (895 ft).
  • Period of record: 1892 to 2010, 119 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 Williamston 3NE, with 2026 drawn through them The band shows the record high and record low for each calendar day at Williamston 3NE. 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 Williamston 3NE. 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 Williamston 3NE, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan8.3 C (46.9 F)-23.9 C (-11.0 F)n/an/a
Feb2.8 C (37.0 F)-27.8 C (-18.0 F)n/an/a
Mar22.2 C (72.0 F)-21.7 C (-7.1 F)n/an/a
Apr28.3 C (82.9 F)-5.0 C (23.0 F)n/an/a
May28.9 C (84.0 F)-1.1 C (30.0 F)n/an/a
Jun33.9 C (93.0 F)2.8 C (37.0 F)n/an/a
Jul36.7 C (98.1 F)4.4 C (39.9 F)n/an/a
Aug35.6 C (96.1 F)6.1 C (43.0 F)n/an/a
Sep36.7 C (98.1 F)0.6 C (33.1 F)n/an/a
Oct30.6 C (87.1 F)-5.6 C (21.9 F)n/an/a
Nov18.3 C (64.9 F)-12.8 C (9.0 F)n/an/a
Dec10.6 C (51.1 F)-21.7 C (-7.1 F)n/an/a

Which Years Hold Standing Records

1,458 standing records
Standing records at Williamston 3NE by the year they were set 1,458 records at Williamston 3NE still stand. 1898 holds the most, with 505. 02004006001893: 151898: 5051899: 241900: 4001901: 4121971: 571976: 451893189818991900190119711976
1,458 records at Williamston 3NE still stand. 1898 holds the most, with 505.
Standing records at Williamston 3NE by the year they were set
Year setStanding records
189315
1898505
189924
1900400
1901412
197157
197645

All-Time Record Progression

1 new records
When Williamston 3NE set new all-time records 1 all-time records were set at Williamston 3NE between 19 April 1975 and 19 April 1975. Each dot is a new record. Record daily precipitation19 April 1975: Record daily precipitation 124.2 mm (4.9 in)1975
1 all-time records were set at Williamston 3NE between 19 April 1975 and 19 April 1975. Each dot is a new record.
When Williamston 3NE set new all-time records
DateKindDetail
1975-04-19Record daily precipitationRecord daily precipitation 124.2 mm (4.9 in)

Wettest Day of Each Month

Apr: 124.2 mm (4.9 in)
Record daily precipitation for each month at Williamston 3NE The wettest day on record for each calendar month at Williamston 3NE. The most was 124.2 mm (4.9 in) on 19 April 1975. 050100150 Jan: 49.5 mm (1.9 in), 1 January 1985 Jan Feb: 74.9 mm (2.9 in), 13 February 1938 Feb Mar: 101.6 mm (4.0 in), 22 March 2008 Mar Apr: 124.2 mm (4.9 in), 19 April 1975 Apr May: 73.4 mm (2.9 in), 10 May 1948 May Jun: 91.2 mm (3.6 in), 14 June 1994 Jun Jul: 112.3 mm (4.4 in), 3 July 2008 Jul Aug: 70.9 mm (2.8 in), 20 August 1961 Aug Sep: 64.0 mm (2.5 in), 23 September 2000 Sep Oct: 73.7 mm (2.9 in), 4 October 1954 Oct Nov: 52.6 mm (2.1 in), 28 November 1990 Nov Dec: 44.5 mm (1.8 in), 12 December 1946 Dec
The wettest day on record for each calendar month at Williamston 3NE. The most was 124.2 mm (4.9 in) on 19 April 1975.
Record daily precipitation for each month at Williamston 3NE
MonthRecord daily precipitation (mm)Date
Jan49.5 mm (1.9 in)1 January 1985
Feb74.9 mm (2.9 in)13 February 1938
Mar101.6 mm (4.0 in)22 March 2008
Apr124.2 mm (4.9 in)19 April 1975
May73.4 mm (2.9 in)10 May 1948
Jun91.2 mm (3.6 in)14 June 1994
Jul112.3 mm (4.4 in)3 July 2008
Aug70.9 mm (2.8 in)20 August 1961
Sep64.0 mm (2.5 in)23 September 2000
Oct73.7 mm (2.9 in)4 October 1954
Nov52.6 mm (2.1 in)28 November 1990
Dec44.5 mm (1.8 in)12 December 1946

Period of Record Coverage

1893 to 1976
Days with data per year at Williamston 3NE 6 years of record at Williamston 3NE, 1893 to 1976. 6 years have data for under 90 percent of days and are left out of rankings: 1893, 1898, 1900, 1901, 1971, 1976. 1893: 6 of 365 days1898: 207 of 365 days1900: 212 of 365 days1901: 230 of 365 days1971: 30 of 365 days1976: 31 of 366 days1900
6 years of record at Williamston 3NE, 1893 to 1976. 6 years have data for under 90 percent of days and are left out of rankings: 1893, 1898, 1900, 1901, 1971, 1976.
Days with data per year at Williamston 3NE
YearDays with dataShare of yearComplete
189362%No
189820757%No
190021258%No
190123063%No
1971308%No
1976318%No

Latest Records

20
Latest records at Williamston 3NE
DateStationRecordValueBeat old record byOld record stoodSignificance
13 December 2010Williamston 3NE, USdaily snowfall12.7 cm (5.0 in)3.8 cm (1.5 in)36 years30 of 100 (Routine)
23 November 2010Williamston 3NE, USdaily rain16.5 mm (0.6 in)6.6 mm (0.26 in)56 years20 of 100 (Routine)
17 September 2010Williamston 3NE, USdaily rain26.7 mm (1.1 in)2.6 mm (0.10 in)12 years15 of 100 (Routine)
24 February 2010Williamston 3NE, USdaily snowfall12.7 cm (5.0 in)6.3 cm (2.5 in)70 years46 of 100 (Notable)
22 February 2010Williamston 3NE, USdaily snowfall11.2 cm (4.4 in)2.3 cm (0.9 in)48 years29 of 100 (Routine)
9 February 2010Williamston 3NE, USdaily snowfall20.3 cm (8.0 in)10.6 cm (4.2 in)16 years40 of 100 (Notable)
9 August 2009Williamston 3NE, USdaily rain51.8 mm (2.0 in)21.6 mm (0.9 in)66 years50 of 100 (Notable)
24 July 2009Williamston 3NE, USdaily rain66.0 mm (2.6 in)17.2 mm (0.7 in)10 years26 of 100 (Routine)
20 June 2009Williamston 3NE, USdaily rain55.1 mm (2.2 in)23.9 mm (0.9 in)54 years44 of 100 (Notable)
9 June 2009Williamston 3NE, USdaily rain29.2 mm (1.1 in)13.2 mm (0.5 in)6 years21 of 100 (Routine)
28 May 2009Williamston 3NE, USdaily rain59.9 mm (2.4 in)32.0 mm (1.3 in)40 years55 of 100 (Notable)
26 April 2009Williamston 3NE, USdaily rain51.3 mm (2.0 in)20.8 mm (0.8 in)80 years56 of 100 (Notable)
15 April 2009Williamston 3NE, USdaily rain29.0 mm (1.1 in)7.4 mm (0.29 in)18 years23 of 100 (Routine)
8 April 2009Williamston 3NE, USdaily snow depth5.1 cm (2.0 in)2.6 cm (1.0 in)8 years15 of 100 (Routine)
7 April 2009Williamston 3NE, USdaily snowfall1.3 cm (0.5 in)1.3 cm (0.5 in)115 years20 of 100 (Routine)
6 April 2009Williamston 3NE, USdaily snowfall12.7 cm (5.0 in)12.2 cm (4.8 in)15 years34 of 100 (Routine)
6 April 2009Williamston 3NE, USdaily snow depth12.7 cm (5.0 in)2.5 cm (1.0 in)56 years30 of 100 (Routine)
11 March 2009Williamston 3NE, USdaily rain (Tie)17.3 mm (0.7 in)tie66 years7 of 100 (Routine)
8 March 2009Williamston 3NE, USdaily rain24.1 mm (0.9 in)2.5 mm (0.10 in)38 years20 of 100 (Routine)
24 December 2008Williamston 3NE, USdaily snowfall8.1 cm (3.2 in)2.0 cm (0.8 in)4 years15 of 100 (Routine)

Extremes by Year

1892 to 2010
Yearly extremes at Williamston 3NE: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.7 C (98.1 F)189828.9 C (84.0 F)6
Coldest night (TNn)-27.8 C (-18.0 F)1901-22.2 C (-8.0 F)7
Wettest day (Rx1day)124.2 mm (4.9 in)197542.2 mm (1.7 in)95
Wettest five days (Rx5day)159.0 mm (6.3 in)196862.7 mm (2.5 in)93
Longest dry spell (CDD)45 days196918 days94

Hottest day (TXx)

Hottest day (TXx) at Williamston 3NE by year The hottest day of the year at Williamston 3NE, 1892 to 2010. The record is 36.7 C (98.1 F) in 1898, marked on the chart; the median year is 28.9 C (84.0 F). 010203040190019201940196019802000Record: 36.7 C (98.1 F) in 1898
The hottest day of the year at Williamston 3NE, 1892 to 2010. The record is 36.7 C (98.1 F) in 1898, marked on the chart; the median year is 28.9 C (84.0 F).
Hottest day (TXx) at Williamston 3NE by year
YearHottest day (TXx)
1892n/a
18932.8 C (37.0 F)
1894n/a
189836.7 C (98.1 F)
1899n/a
190035.6 C (96.1 F)
190135.6 C (96.1 F)
1919n/a
1920n/a
1921n/a
1922n/a
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
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
19714.4 C (39.9 F)
1972n/a
1973n/a
1974n/a
1975n/a
197622.2 C (72.0 F)
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
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

Coldest night (TNn)

Coldest night (TNn) at Williamston 3NE by year The coldest night of the year at Williamston 3NE, 1892 to 2010. The record is -27.8 C (-18.0 F) in 1901, marked on the chart; the median year is -22.2 C (-8.0 F). -30-25-20-15-10190019201940196019802000Record: -27.8 C (-18.0 F) in 1901
The coldest night of the year at Williamston 3NE, 1892 to 2010. The record is -27.8 C (-18.0 F) in 1901, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Williamston 3NE by year
YearColdest night (TNn)
1892n/a
1893-22.2 C (-8.0 F)
1894n/a
1898-15.0 C (5.0 F)
1899-21.7 C (-7.1 F)
1900-22.2 C (-8.0 F)
1901-27.8 C (-18.0 F)
1919n/a
1920n/a
1921n/a
1922n/a
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
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
1971-23.3 C (-9.9 F)
1972n/a
1973n/a
1974n/a
1975n/a
1976-11.1 C (12.0 F)
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
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

Wettest day (Rx1day)

Wettest day (Rx1day) at Williamston 3NE by year The wettest day of the year at Williamston 3NE, 1892 to 2010. The record is 124.2 mm (4.9 in) in 1975, marked on the chart; the median year is 42.2 mm (1.7 in). 050100150190019201940196019802000Record: 124.2 mm (4.9 in) in 1975
The wettest day of the year at Williamston 3NE, 1892 to 2010. The record is 124.2 mm (4.9 in) in 1975, marked on the chart; the median year is 42.2 mm (1.7 in).
Wettest day (Rx1day) at Williamston 3NE by year
YearWettest day (Rx1day)
189225.4 mm (1.0 in)
189335.6 mm (1.4 in)
189430.5 mm (1.2 in)
189835.6 mm (1.4 in)
189920.3 mm (0.8 in)
190047.0 mm (1.9 in)
190145.7 mm (1.8 in)
191938.1 mm (1.5 in)
192022.9 mm (0.9 in)
192122.9 mm (0.9 in)
192233.8 mm (1.3 in)
192330.5 mm (1.2 in)
192434.3 mm (1.4 in)
192522.9 mm (0.9 in)
192620.3 mm (0.8 in)
192717.8 mm (0.7 in)
192831.0 mm (1.2 in)
192948.3 mm (1.9 in)
193033.5 mm (1.3 in)
193127.9 mm (1.1 in)
193241.1 mm (1.6 in)
193335.6 mm (1.4 in)
193416.5 mm (0.6 in)
1937n/a
193874.9 mm (2.9 in)
193936.3 mm (1.4 in)
194014.7 mm (0.6 in)
194128.4 mm (1.1 in)
194239.4 mm (1.6 in)
194340.6 mm (1.6 in)
194430.5 mm (1.2 in)
194547.2 mm (1.9 in)
194644.5 mm (1.8 in)
194767.3 mm (2.6 in)
194873.4 mm (2.9 in)
194960.5 mm (2.4 in)
195052.1 mm (2.1 in)
195146.0 mm (1.8 in)
195242.9 mm (1.7 in)
195343.2 mm (1.7 in)
195473.7 mm (2.9 in)
195551.8 mm (2.0 in)
195647.2 mm (1.9 in)
195745.7 mm (1.8 in)
195866.3 mm (2.6 in)
195972.6 mm (2.9 in)
196027.2 mm (1.1 in)
196170.9 mm (2.8 in)
196282.0 mm (3.2 in)
196346.0 mm (1.8 in)
196441.9 mm (1.6 in)
196541.1 mm (1.6 in)
196648.8 mm (1.9 in)
196754.6 mm (2.1 in)
196864.0 mm (2.5 in)
196958.4 mm (2.3 in)
197045.0 mm (1.8 in)
197124.1 mm (0.9 in)
197238.4 mm (1.5 in)
197333.8 mm (1.3 in)
197448.3 mm (1.9 in)
1975124.2 mm (4.9 in)
197654.4 mm (2.1 in)
197740.6 mm (1.6 in)
197835.6 mm (1.4 in)
197931.8 mm (1.3 in)
198024.6 mm (1.0 in)
198152.8 mm (2.1 in)
198269.3 mm (2.7 in)
19839.4 mm (0.37 in)
198432.5 mm (1.3 in)
198552.3 mm (2.1 in)
198661.5 mm (2.4 in)
198737.8 mm (1.5 in)
198841.1 mm (1.6 in)
198964.0 mm (2.5 in)
199052.6 mm (2.1 in)
199126.2 mm (1.0 in)
199342.2 mm (1.7 in)
199491.2 mm (3.6 in)
199532.3 mm (1.3 in)
199679.5 mm (3.1 in)
199744.5 mm (1.8 in)
199832.0 mm (1.3 in)
199948.8 mm (1.9 in)
200064.0 mm (2.5 in)
200153.1 mm (2.1 in)
200263.2 mm (2.5 in)
200351.3 mm (2.0 in)
200442.9 mm (1.7 in)
200528.2 mm (1.1 in)
200640.9 mm (1.6 in)
200736.8 mm (1.4 in)
2008112.3 mm (4.4 in)
200966.0 mm (2.6 in)
201026.7 mm (1.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Williamston 3NE by year The wettest five days of the year at Williamston 3NE, 1892 to 2010. The record is 159.0 mm (6.3 in) in 1968, marked on the chart; the median year is 62.7 mm (2.5 in). 050100150200190019201940196019802000Record: 159.0 mm (6.3 in) in 1968
The wettest five days of the year at Williamston 3NE, 1892 to 2010. The record is 159.0 mm (6.3 in) in 1968, marked on the chart; the median year is 62.7 mm (2.5 in).
Wettest five days (Rx5day) at Williamston 3NE by year
YearWettest five days (Rx5day)
189233.0 mm (1.3 in)
189353.4 mm (2.1 in)
189450.8 mm (2.0 in)
189870.6 mm (2.8 in)
1899n/a
190062.2 mm (2.4 in)
190163.0 mm (2.5 in)
191971.1 mm (2.8 in)
192048.1 mm (1.9 in)
192150.9 mm (2.0 in)
192240.9 mm (1.6 in)
192347.0 mm (1.9 in)
192438.9 mm (1.5 in)
192531.6 mm (1.2 in)
192660.9 mm (2.4 in)
192741.1 mm (1.6 in)
192854.6 mm (2.1 in)
192961.1 mm (2.4 in)
193045.2 mm (1.8 in)
193131.1 mm (1.2 in)
193256.3 mm (2.2 in)
193339.2 mm (1.5 in)
1934n/a
1937n/a
193858.7 mm (2.3 in)
193963.8 mm (2.5 in)
194026.4 mm (1.0 in)
194149.0 mm (1.9 in)
194248.0 mm (1.9 in)
194365.8 mm (2.6 in)
194445.8 mm (1.8 in)
194597.7 mm (3.8 in)
194657.3 mm (2.3 in)
194793.2 mm (3.7 in)
1948105.9 mm (4.2 in)
194989.1 mm (3.5 in)
195075.6 mm (3.0 in)
195151.1 mm (2.0 in)
195281.1 mm (3.2 in)
195361.5 mm (2.4 in)
1954124.1 mm (4.9 in)
195554.3 mm (2.1 in)
195696.9 mm (3.8 in)
195796.3 mm (3.8 in)
1958123.6 mm (4.9 in)
1959137.6 mm (5.4 in)
196058.9 mm (2.3 in)
196186.1 mm (3.4 in)
1962100.5 mm (4.0 in)
196357.2 mm (2.3 in)
196479.2 mm (3.1 in)
196547.4 mm (1.9 in)
196657.2 mm (2.3 in)
196767.8 mm (2.7 in)
1968159.0 mm (6.3 in)
196966.7 mm (2.6 in)
197086.2 mm (3.4 in)
197144.2 mm (1.7 in)
197265.2 mm (2.6 in)
197351.5 mm (2.0 in)
197475.2 mm (3.0 in)
1975126.5 mm (5.0 in)
197674.4 mm (2.9 in)
197759.3 mm (2.3 in)
197849.7 mm (2.0 in)
197947.1 mm (1.9 in)
198041.1 mm (1.6 in)
198184.6 mm (3.3 in)
198277.4 mm (3.0 in)
198316.5 mm (0.6 in)
198449.5 mm (1.9 in)
198574.1 mm (2.9 in)
198681.5 mm (3.2 in)
198744.4 mm (1.7 in)
198876.1 mm (3.0 in)
198992.2 mm (3.6 in)
199073.4 mm (2.9 in)
199140.7 mm (1.6 in)
199362.0 mm (2.4 in)
1994100.6 mm (4.0 in)
199560.0 mm (2.4 in)
1996100.0 mm (3.9 in)
199762.7 mm (2.5 in)
199851.8 mm (2.0 in)
199984.0 mm (3.3 in)
200080.6 mm (3.2 in)
200180.8 mm (3.2 in)
2002132.1 mm (5.2 in)
200383.6 mm (3.3 in)
200494.4 mm (3.7 in)
200543.7 mm (1.7 in)
200673.1 mm (2.9 in)
200776.4 mm (3.0 in)
2008112.3 mm (4.4 in)
200997.3 mm (3.8 in)
201047.2 mm (1.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Williamston 3NE by year The longest dry spell of the year at Williamston 3NE, 1892 to 2010. The record is 45 days in 1969, marked on the chart; the median year is 18 days. 0204060190019201940196019802000Record: 45 days in 1969
The longest dry spell of the year at Williamston 3NE, 1892 to 2010. The record is 45 days in 1969, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Williamston 3NE by year
YearLongest dry spell (CDD)
189217 days
189330 days
18948 days
189812 days
18991 day
190022 days
190118 days
19198 days
192012 days
192123 days
192216 days
192317 days
192414 days
192515 days
192613 days
192712 days
192811 days
192913 days
193013 days
193121 days
193212 days
193313 days
1934n/a
1937n/a
193810 days
193911 days
194023 days
194120 days
194217 days
194319 days
194424 days
194513 days
194629 days
194725 days
194822 days
194921 days
195025 days
195114 days
195219 days
195323 days
195421 days
195518 days
195619 days
195731 days
195820 days
195916 days
196021 days
196118 days
196218 days
196316 days
196417 days
196516 days
196621 days
196720 days
196825 days
196945 days
197012 days
197121 days
197214 days
197327 days
197416 days
197517 days
197625 days
197711 days
197822 days
197931 days
198012 days
198138 days
198222 days
19839 days
198419 days
198514 days
198620 days
198731 days
198837 days
198918 days
199016 days
199115 days
199314 days
199414 days
199532 days
199614 days
199712 days
199817 days
199924 days
200018 days
200126 days
200225 days
200314 days
200421 days
200520 days
200615 days
20077 days
200813 days
200914 days
201020 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

48 years, 1944 to 2008

A day with at least 51.7 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 124.9 mm (4.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Williamston 3NE: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years51.7 mm (2.0 in)
5 years68.2 mm (2.7 in)
10 years80.3 mm (3.2 in)
25 years97.0 mm (3.8 in)
50 years110.5 mm (4.4 in)Longer than the 48 years of record
100 years124.9 mm (4.9 in)Longer than the 48 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, 48 years of values from 1944 to 2008.

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: 124.2 mm (4.9 in) in 1975; 112.3 mm (4.4 in) in 2008; 91.2 mm (3.6 in) in 1994.

Download the Data

  • Data for Williamston 3NE standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Williamston 3NE 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 (2025-12-31).