Built 2026-10-17 (17 October 2026)

Clifton Weather Records (USC00141593)

Record envelope, standing records and threshold days for Clifton (USC00141593), Kansas, United States, with 96 years of record.

Key Facts for Clifton

  • Clifton (USC00141593) is a weather station in Kansas, United States at 39.57 latitude and -97.28 longitude, 403 m (1,322 ft) above sea level.
  • The station reports from 1931 to 2026, 96 years of record.
  • 872 records set at Clifton still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Clifton set a daily record precipitation of 32.5 mm (1.3 in) on 30 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Kansas, United States, 39.57 latitude, -97.28 longitude.
  • Elevation: 403 m (1,322 ft).
  • Period of record: 1931 to 2026, 96 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 Clifton, with 2026 drawn through them The band shows the record high and record low for each calendar day at Clifton. 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 Clifton. 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 Clifton, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.1 C (70.0 F)-26.7 C (-16.1 F)n/an/a
Feb22.8 C (73.0 F)-23.9 C (-11.0 F)n/an/a
Mar26.7 C (80.1 F)-22.2 C (-8.0 F)n/an/a
Apr28.9 C (84.0 F)0.6 C (33.1 F)n/an/a
May32.2 C (90.0 F)0.6 C (33.1 F)n/an/a
Jun40.0 C (104.0 F)11.1 C (52.0 F)n/an/a
Jul40.0 C (104.0 F)18.3 C (64.9 F)n/an/a
Augn/an/an/an/a
Sep37.8 C (100.0 F)0.0 C (32.0 F)n/an/a
Oct36.7 C (98.1 F)-5.6 C (21.9 F)n/an/a
Nov12.2 C (54.0 F)-8.3 C (17.1 F)n/an/a
Dec17.8 C (64.0 F)-20.0 C (-4.0 F)n/an/a

Which Years Hold Standing Records

872 standing records
Standing records at Clifton by the year they were set 872 records at Clifton still stand. 1977 holds the most, with 392. 01002003004001941: 51942: 11970: 71972: 141973: 151974: 151975: 411976: 1201977: 3921978: 1261981: 136194119701973197519771981
872 records at Clifton still stand. 1977 holds the most, with 392.
Standing records at Clifton by the year they were set
Year setStanding records
19415
19421
19707
197214
197315
197415
197541
1976120
1977392
1978126
1981136

All-Time Record Progression

2 new records
When Clifton set new all-time records 2 all-time records were set at Clifton between 22 February 1971 and 6 January 2025. Each dot is a new record. Record daily snowfall22 February 1971: Record daily snowfall 27.9 cm (11.0 in)6 January 2025: Record daily snowfall 38.1 cm (15.0 in)19801990200020102020
2 all-time records were set at Clifton between 22 February 1971 and 6 January 2025. Each dot is a new record.
When Clifton set new all-time records
DateKindDetail
1971-02-22Record daily snowfallRecord daily snowfall 27.9 cm (11.0 in)
2025-01-06Record daily snowfallRecord daily snowfall 38.1 cm (15.0 in)

Wettest Day of Each Month

Aug: 168.9 mm (6.6 in)
Record daily precipitation for each month at Clifton The wettest day on record for each calendar month at Clifton. The most was 168.9 mm (6.6 in) on 30 August 1932. 050100150200 Jan: 33.0 mm (1.3 in), 16 January 2017 Jan Feb: 45.0 mm (1.8 in), 27 February 1948 Feb Mar: 52.6 mm (2.1 in), 5 March 1946 Mar Apr: 67.1 mm (2.6 in), 30 April 1984 Apr May: 99.1 mm (3.9 in), 22 May 1971 May Jun: 100.3 mm (3.9 in), 2 June 2011 Jun Jul: 138.9 mm (5.5 in), 4 July 2019 Jul Aug: 168.9 mm (6.6 in), 30 August 1932 Aug Sep: 167.6 mm (6.6 in), 5 September 1958 Sep Oct: 99.3 mm (3.9 in), 2 October 1950 Oct Nov: 56.6 mm (2.2 in), 2 November 1998 Nov Dec: 50.0 mm (2.0 in), 14 December 2015 Dec
The wettest day on record for each calendar month at Clifton. The most was 168.9 mm (6.6 in) on 30 August 1932.
Record daily precipitation for each month at Clifton
MonthRecord daily precipitation (mm)Date
Jan33.0 mm (1.3 in)16 January 2017
Feb45.0 mm (1.8 in)27 February 1948
Mar52.6 mm (2.1 in)5 March 1946
Apr67.1 mm (2.6 in)30 April 1984
May99.1 mm (3.9 in)22 May 1971
Jun100.3 mm (3.9 in)2 June 2011
Jul138.9 mm (5.5 in)4 July 2019
Aug168.9 mm (6.6 in)30 August 1932
Sep167.6 mm (6.6 in)5 September 1958
Oct99.3 mm (3.9 in)2 October 1950
Nov56.6 mm (2.2 in)2 November 1998
Dec50.0 mm (2.0 in)14 December 2015

Period of Record Coverage

1941 to 1981
Days with data per year at Clifton 7 years of record at Clifton, 1941 to 1981. 7 years have data for under 90 percent of days and are left out of rankings: 1941, 1974, 1975, 1976, 1977, 1978, 1981. 1941: 2 of 365 days1974: 2 of 365 days1975: 18 of 365 days1976: 23 of 366 days1977: 81 of 365 days1978: 22 of 365 days1981: 51 of 365 days1975
7 years of record at Clifton, 1941 to 1981. 7 years have data for under 90 percent of days and are left out of rankings: 1941, 1974, 1975, 1976, 1977, 1978, 1981.
Days with data per year at Clifton
YearDays with dataShare of yearComplete
194121%No
197421%No
1975185%No
1976236%No
19778122%No
1978226%No
19815114%No

Latest Records

20
Latest records at Clifton
DateStationRecordValueBeat old record byOld record stoodSignificance
30 September 2026Clifton, USdaily rain (Provisional)32.5 mm (1.3 in)10.9 mm (0.4 in)60 years33 of 100 (Routine)
25 January 2026Clifton, USdaily snowfall18.3 cm (7.2 in)8.1 cm (3.2 in)84 years50 of 100 (Notable)
25 January 2026Clifton, USdaily snow depth17.8 cm (7.0 in)5.1 cm (2.0 in)70 years38 of 100 (Notable)
2 December 2025Clifton, USdaily snowfall8.1 cm (3.2 in)6.8 cm (2.7 in)72 years45 of 100 (Notable)
22 November 2025Clifton, USdaily rain37.1 mm (1.5 in)0.3 mm (0.01 in)94 years37 of 100 (Notable)
18 February 2025Clifton, USdaily snowfall8.1 cm (3.2 in)0.5 cm (0.2 in)46 years22 of 100 (Routine)
6 January 2025Clifton, USall-time snowfall38.1 cm (15.0 in)10.2 cm (4.0 in)53 years67 of 100 (Major)
6 January 2025Clifton, USdaily rain16.0 mm (0.6 in)9.1 mm (0.36 in)85 years20 of 100 (Routine)
6 January 2025Clifton, USmonthly snow depth38.1 cm (15.0 in)5.1 cm (2.0 in)45 years40 of 100 (Notable)
19 November 2024Clifton, USdaily rain38.6 mm (1.5 in)16.5 mm (0.6 in)32 years35 of 100 (Notable)
26 April 2024Clifton, USdaily rain57.7 mm (2.3 in)28.0 mm (1.1 in)39 years47 of 100 (Notable)
14 January 2024Clifton, USdaily snowfall8.4 cm (3.3 in)4.6 cm (1.8 in)5 years20 of 100 (Routine)
9 January 2024Clifton, USdaily rain17.5 mm (0.7 in)6.3 mm (0.25 in)30 years20 of 100 (Routine)
25 December 2023Clifton, USdaily rain14.0 mm (0.6 in)0.3 mm (0.01 in)81 years20 of 100 (Routine)
25 December 2023Clifton, USdaily snowfall10.2 cm (4.0 in)1.3 cm (0.5 in)60 years30 of 100 (Routine)
15 December 2023Clifton, USdaily rain9.4 mm (0.37 in)1.8 mm (0.07 in)38 years20 of 100 (Routine)
26 August 2023Clifton, USdaily rain31.0 mm (1.2 in)10.2 mm (0.4 in)16 years20 of 100 (Routine)
15 May 2023Clifton, USdaily rain34.8 mm (1.4 in)0.3 mm (0.01 in)24 years16 of 100 (Routine)
22 January 2023Clifton, USdaily snowfall11.4 cm (4.5 in)3.8 cm (1.5 in)49 years31 of 100 (Routine)
22 January 2023Clifton, USdaily rain14.0 mm (0.6 in)0.3 mm (0.01 in)40 years20 of 100 (Routine)

Extremes by Year

1931 to 2026
Yearly extremes at Clifton: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.0 C (104.0 F)197836.7 C (98.1 F)7
Coldest night (TNn)-26.7 C (-16.1 F)1974-18.9 C (-2.0 F)11
Wettest day (Rx1day)168.9 mm (6.6 in)193266.2 mm (2.6 in)96
Wettest five days (Rx5day)204.7 mm (8.1 in)199387.2 mm (3.4 in)95
Longest dry spell (CDD)62 days197632 days96

Hottest day (TXx)

Hottest day (TXx) at Clifton by year The hottest day of the year at Clifton, 1931 to 2026. The record is 40.0 C (104.0 F) in 1978, marked on the chart; the median year is 36.7 C (98.1 F). 1020304019401960198020002020Record: 40.0 C (104.0 F) in 1978
The hottest day of the year at Clifton, 1931 to 2026. The record is 40.0 C (104.0 F) in 1978, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Clifton by year
YearHottest day (TXx)
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
194115.6 C (60.1 F)
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
1971n/a
1972n/a
1973n/a
197411.1 C (52.0 F)
197537.8 C (100.0 F)
197636.7 C (98.1 F)
197737.8 C (100.0 F)
197840.0 C (104.0 F)
1979n/a
1980n/a
198131.7 C (89.1 F)
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
2013n/a
2014n/a
2015n/a
2016n/a
2017n/a
2018n/a
2019n/a
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Coldest night (TNn)

Coldest night (TNn) at Clifton by year The coldest night of the year at Clifton, 1931 to 2026. The record is -26.7 C (-16.1 F) in 1974, marked on the chart; the median year is -18.9 C (-2.0 F). -30-20-1001019401960198020002020Record: -26.7 C (-16.1 F) in 1974
The coldest night of the year at Clifton, 1931 to 2026. The record is -26.7 C (-16.1 F) in 1974, marked on the chart; the median year is -18.9 C (-2.0 F).
Coldest night (TNn) at Clifton by year
YearColdest night (TNn)
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941-12.2 C (10.0 F)
1942-23.3 C (-9.9 F)
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
1970-5.6 C (21.9 F)
1971n/a
19721.7 C (35.1 F)
1973-18.9 C (-2.0 F)
1974-26.7 C (-16.1 F)
19750.0 C (32.0 F)
1976-20.0 C (-4.0 F)
1977-22.2 C (-8.0 F)
1978-23.9 C (-11.0 F)
1979n/a
1980n/a
1981-14.4 C (6.1 F)
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
2013n/a
2014n/a
2015n/a
2016n/a
2017n/a
2018n/a
2019n/a
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Clifton by year The wettest day of the year at Clifton, 1931 to 2026. The record is 168.9 mm (6.6 in) in 1932, marked on the chart; the median year is 66.2 mm (2.6 in). 05010015020019401960198020002020Record: 168.9 mm (6.6 in) in 1932
The wettest day of the year at Clifton, 1931 to 2026. The record is 168.9 mm (6.6 in) in 1932, marked on the chart; the median year is 66.2 mm (2.6 in).
Wettest day (Rx1day) at Clifton by year
YearWettest day (Rx1day)
193164.8 mm (2.6 in)
1932168.9 mm (6.6 in)
193333.0 mm (1.3 in)
193446.2 mm (1.8 in)
1935114.3 mm (4.5 in)
193645.7 mm (1.8 in)
193794.2 mm (3.7 in)
193879.5 mm (3.1 in)
193929.5 mm (1.2 in)
194050.8 mm (2.0 in)
194155.9 mm (2.2 in)
194251.3 mm (2.0 in)
194351.1 mm (2.0 in)
1944105.4 mm (4.1 in)
194591.4 mm (3.6 in)
1946121.9 mm (4.8 in)
194752.6 mm (2.1 in)
194861.5 mm (2.4 in)
194964.8 mm (2.6 in)
1950100.8 mm (4.0 in)
195183.3 mm (3.3 in)
195254.4 mm (2.1 in)
195369.9 mm (2.8 in)
195471.6 mm (2.8 in)
195543.9 mm (1.7 in)
195660.2 mm (2.4 in)
195774.4 mm (2.9 in)
1958167.6 mm (6.6 in)
195952.1 mm (2.1 in)
196055.6 mm (2.2 in)
196159.7 mm (2.4 in)
196296.5 mm (3.8 in)
196350.5 mm (2.0 in)
196478.0 mm (3.1 in)
196575.7 mm (3.0 in)
196657.2 mm (2.3 in)
196796.5 mm (3.8 in)
196874.4 mm (2.9 in)
196974.4 mm (2.9 in)
197091.9 mm (3.6 in)
1971116.3 mm (4.6 in)
1972115.3 mm (4.5 in)
1973106.2 mm (4.2 in)
197465.3 mm (2.6 in)
197563.5 mm (2.5 in)
197659.2 mm (2.3 in)
197773.4 mm (2.9 in)
197874.7 mm (2.9 in)
197963.5 mm (2.5 in)
198067.3 mm (2.6 in)
198153.8 mm (2.1 in)
198286.4 mm (3.4 in)
198356.4 mm (2.2 in)
198467.1 mm (2.6 in)
198557.7 mm (2.3 in)
198685.1 mm (3.4 in)
198767.6 mm (2.7 in)
198847.0 mm (1.9 in)
198977.0 mm (3.0 in)
199043.9 mm (1.7 in)
199163.0 mm (2.5 in)
199275.2 mm (3.0 in)
199398.8 mm (3.9 in)
199451.3 mm (2.0 in)
199574.7 mm (2.9 in)
199656.6 mm (2.2 in)
199756.9 mm (2.2 in)
199877.0 mm (3.0 in)
199968.1 mm (2.7 in)
200039.4 mm (1.6 in)
200155.9 mm (2.2 in)
200230.7 mm (1.2 in)
200364.3 mm (2.5 in)
200447.0 mm (1.9 in)
200554.6 mm (2.1 in)
200669.9 mm (2.8 in)
200796.5 mm (3.8 in)
200855.9 mm (2.2 in)
200954.6 mm (2.1 in)
2010111.8 mm (4.4 in)
2011100.3 mm (3.9 in)
201269.1 mm (2.7 in)
2013108.7 mm (4.3 in)
201428.7 mm (1.1 in)
201573.4 mm (2.9 in)
201657.9 mm (2.3 in)
201769.9 mm (2.8 in)
201871.6 mm (2.8 in)
2019138.9 mm (5.5 in)
202081.8 mm (3.2 in)
202133.5 mm (1.3 in)
202249.5 mm (1.9 in)
202350.8 mm (2.0 in)
202457.7 mm (2.3 in)
202574.9 mm (2.9 in)
202641.9 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Clifton by year The wettest five days of the year at Clifton, 1931 to 2026. The record is 204.7 mm (8.1 in) in 1993, marked on the chart; the median year is 87.2 mm (3.4 in). 010020030019401960198020002020Record: 204.7 mm (8.1 in) in 1993
The wettest five days of the year at Clifton, 1931 to 2026. The record is 204.7 mm (8.1 in) in 1993, marked on the chart; the median year is 87.2 mm (3.4 in).
Wettest five days (Rx5day) at Clifton by year
YearWettest five days (Rx5day)
193171.1 mm (2.8 in)
1932179.1 mm (7.1 in)
193385.1 mm (3.4 in)
193495.2 mm (3.7 in)
193597.5 mm (3.8 in)
193669.1 mm (2.7 in)
1937124.8 mm (4.9 in)
193882.7 mm (3.3 in)
193953.1 mm (2.1 in)
194053.9 mm (2.1 in)
194181.5 mm (3.2 in)
194250.8 mm (2.0 in)
194353.6 mm (2.1 in)
1944189.7 mm (7.5 in)
1945106.2 mm (4.2 in)
1946122.7 mm (4.8 in)
194747.5 mm (1.9 in)
194875.2 mm (3.0 in)
194971.9 mm (2.8 in)
1950186.9 mm (7.4 in)
1951189.1 mm (7.4 in)
195264.3 mm (2.5 in)
195375.7 mm (3.0 in)
195484.5 mm (3.3 in)
195573.8 mm (2.9 in)
195660.7 mm (2.4 in)
195789.4 mm (3.5 in)
1958183.3 mm (7.2 in)
1959124.2 mm (4.9 in)
196079.9 mm (3.1 in)
196198.5 mm (3.9 in)
1962113.3 mm (4.5 in)
196355.6 mm (2.2 in)
196488.9 mm (3.5 in)
196596.3 mm (3.8 in)
196673.5 mm (2.9 in)
1967159.0 mm (6.3 in)
1968135.4 mm (5.3 in)
1969101.8 mm (4.0 in)
1970118.9 mm (4.7 in)
1971140.7 mm (5.5 in)
1972169.4 mm (6.7 in)
1973160.8 mm (6.3 in)
197471.1 mm (2.8 in)
1975100.1 mm (3.9 in)
197696.8 mm (3.8 in)
197783.6 mm (3.3 in)
1978115.4 mm (4.5 in)
1979106.4 mm (4.2 in)
198075.2 mm (3.0 in)
1981118.7 mm (4.7 in)
198298.1 mm (3.9 in)
198371.4 mm (2.8 in)
198485.6 mm (3.4 in)
198580.8 mm (3.2 in)
1986114.0 mm (4.5 in)
1987104.1 mm (4.1 in)
198850.0 mm (2.0 in)
1989151.7 mm (6.0 in)
199071.4 mm (2.8 in)
199174.2 mm (2.9 in)
1992130.1 mm (5.1 in)
1993204.7 mm (8.1 in)
199477.7 mm (3.1 in)
199587.2 mm (3.4 in)
199674.2 mm (2.9 in)
199796.0 mm (3.8 in)
199891.4 mm (3.6 in)
199978.8 mm (3.1 in)
200068.6 mm (2.7 in)
200189.9 mm (3.5 in)
200266.5 mm (2.6 in)
200368.3 mm (2.7 in)
200479.9 mm (3.1 in)
200580.3 mm (3.2 in)
2006118.2 mm (4.7 in)
2007102.6 mm (4.0 in)
200878.5 mm (3.1 in)
200967.6 mm (2.7 in)
2010115.6 mm (4.6 in)
201128.4 mm (1.1 in)
201269.1 mm (2.7 in)
2013n/a
20140.0 mm (0.00 in)
201539.3 mm (1.5 in)
2016110.7 mm (4.4 in)
201799.6 mm (3.9 in)
2018147.8 mm (5.8 in)
2019177.5 mm (7.0 in)
2020161.3 mm (6.4 in)
202144.9 mm (1.8 in)
202291.2 mm (3.6 in)
202354.6 mm (2.1 in)
202472.8 mm (2.9 in)
2025125.4 mm (4.9 in)
202659.4 mm (2.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Clifton by year The longest dry spell of the year at Clifton, 1931 to 2026. The record is 62 days in 1976, marked on the chart; the median year is 32 days. 02040608019401960198020002020Record: 62 days in 1976
The longest dry spell of the year at Clifton, 1931 to 2026. The record is 62 days in 1976, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Clifton by year
YearLongest dry spell (CDD)
193122 days
193220 days
193333 days
193429 days
193525 days
193637 days
193732 days
193830 days
193943 days
194018 days
194118 days
194237 days
194326 days
194433 days
194521 days
194645 days
194734 days
194825 days
194942 days
195059 days
195141 days
195256 days
195340 days
195450 days
195530 days
195643 days
195724 days
195840 days
195952 days
196028 days
196125 days
196240 days
196343 days
196430 days
196537 days
196647 days
196745 days
196839 days
196921 days
197040 days
197131 days
197241 days
197323 days
197457 days
197530 days
197662 days
197738 days
197831 days
197936 days
198022 days
198130 days
198218 days
198324 days
198442 days
198521 days
198633 days
198721 days
198841 days
198947 days
199028 days
199139 days
199220 days
199325 days
199425 days
199537 days
199641 days
199734 days
199824 days
199955 days
200028 days
200139 days
200246 days
200318 days
200425 days
200525 days
200654 days
200734 days
200825 days
200929 days
201030 days
20117 days
201214 days
20131 day
201430 days
20152 days
201627 days
201737 days
201824 days
201932 days
202042 days
202137 days
202250 days
202337 days
202438 days
202529 days
202619 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

83 years, 1936 to 2025

A day with at least 66.0 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 151.8 mm (6.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Clifton: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years66.0 mm (2.6 in)
5 years86.8 mm (3.4 in)
10 years101.3 mm (4.0 in)
25 years120.8 mm (4.8 in)
50 years136.0 mm (5.4 in)
100 years151.8 mm (6.0 in)Longer than the 83 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, 83 years of values from 1936 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: 167.6 mm (6.6 in) in 1958; 138.9 mm (5.5 in) in 2019; 121.9 mm (4.8 in) in 1946.

Download the Data

  • Data for Clifton standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Clifton 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).