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Built 2026-10-14 (14 October 2026)

Dierks Weather Records (USC00032015)

Record envelope, standing records and threshold days for Dierks (USC00032015), Arkansas, United States, with 68 years of record.

Key Facts for Dierks

  • Dierks (USC00032015) is a weather station in Arkansas, United States at 34.13 latitude and -94.02 longitude, 143 m (470 ft) above sea level.
  • The station reports from 1959 to 2026, 68 years of record.
  • 1,464 records set at Dierks still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Dierks set a daily record snowfall of 15.2 cm (6.0 in) on 13 January 2025.

About the Station

  • Location: Arkansas, United States, 34.13 latitude, -94.02 longitude.
  • Elevation: 143 m (470 ft).
  • Period of record: 1959 to 2026, 68 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 Dierks, with 2026 drawn through them The band shows the record high and record low for each calendar day at Dierks. 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 Dierks. 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 Dierks, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan26.1 C (79.0 F)-23.3 C (-9.9 F)n/an/a
Feb28.3 C (82.9 F)-14.4 C (6.1 F)n/an/a
Mar31.1 C (88.0 F)-12.2 C (10.0 F)n/an/a
Apr32.2 C (90.0 F)-5.6 C (21.9 F)n/an/a
May33.9 C (93.0 F)0.6 C (33.1 F)n/an/a
Jun37.8 C (100.0 F)6.7 C (44.1 F)n/an/a
Jul40.0 C (104.0 F)10.0 C (50.0 F)n/an/a
Aug42.2 C (108.0 F)7.8 C (46.0 F)n/an/a
Sep38.9 C (102.0 F)-0.6 C (30.9 F)n/an/a
Oct37.2 C (99.0 F)-2.8 C (27.0 F)n/an/a
Nov29.4 C (84.9 F)-11.7 C (10.9 F)n/an/a
Dec26.1 C (79.0 F)-15.6 C (3.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Dierks by the year they were set 1,464 records at Dierks still stand. 1963 holds the most, with 153. 0501001502001959: 521960: 1071961: 1271962: 1061963: 1531964: 1151965: 991966: 1091967: 1151968: 731969: 821970: 1161971: 851972: 831973: 4219591961196319651967196919711973
1,464 records at Dierks still stand. 1963 holds the most, with 153.
Standing records at Dierks by the year they were set
Year setStanding records
195952
1960107
1961127
1962106
1963153
1964115
196599
1966109
1967115
196873
196982
1970116
197185
197283
197342

All-Time Record Progression

3 new records
When Dierks set new all-time records 3 all-time records were set at Dierks between 28 January 2000 and 16 July 2019. Each dot is a new record. Record daily snowfallRecord snow depthRecord daily precipitation28 January 2000: Record daily snowfall 30.5 cm (12.0 in)28 January 2000: Record snow depth 35.6 cm (14.0 in)16 July 2019: Record daily precipitation 410.7 mm (16.2 in)20002005201020152020
3 all-time records were set at Dierks between 28 January 2000 and 16 July 2019. Each dot is a new record.
When Dierks set new all-time records
DateKindDetail
2000-01-28Record daily snowfallRecord daily snowfall 30.5 cm (12.0 in)
2000-01-28Record snow depthRecord snow depth 35.6 cm (14.0 in)
2019-07-16Record daily precipitationRecord daily precipitation 410.7 mm (16.2 in)

Wettest Day of Each Month

Jul: 410.7 mm (16.2 in)
Record daily precipitation for each month at Dierks The wettest day on record for each calendar month at Dierks. The most was 410.7 mm (16.2 in) on 16 July 2019. 0200400600 Jan: 152.4 mm (6.0 in), 30 January 1969 Jan Feb: 127.3 mm (5.0 in), 8 February 2023 Feb Mar: 181.9 mm (7.2 in), 8 March 1990 Mar Apr: 109.7 mm (4.3 in), 5 April 1997 Apr May: 125.5 mm (4.9 in), 15 May 1983 May Jun: 115.6 mm (4.6 in), 29 June 1983 Jun Jul: 410.7 mm (16.2 in), 16 July 2019 Jul Aug: 165.1 mm (6.5 in), 12 August 2020 Aug Sep: 177.8 mm (7.0 in), 28 September 1980 Sep Oct: 198.1 mm (7.8 in), 8 October 1990 Oct Nov: 154.9 mm (6.1 in), 16 November 1978 Nov Dec: 304.8 mm (12.0 in), 3 December 1982 Dec
The wettest day on record for each calendar month at Dierks. The most was 410.7 mm (16.2 in) on 16 July 2019.
Record daily precipitation for each month at Dierks
MonthRecord daily precipitation (mm)Date
Jan152.4 mm (6.0 in)30 January 1969
Feb127.3 mm (5.0 in)8 February 2023
Mar181.9 mm (7.2 in)8 March 1990
Apr109.7 mm (4.3 in)5 April 1997
May125.5 mm (4.9 in)15 May 1983
Jun115.6 mm (4.6 in)29 June 1983
Jul410.7 mm (16.2 in)16 July 2019
Aug165.1 mm (6.5 in)12 August 2020
Sep177.8 mm (7.0 in)28 September 1980
Oct198.1 mm (7.8 in)8 October 1990
Nov154.9 mm (6.1 in)16 November 1978
Dec304.8 mm (12.0 in)3 December 1982

Period of Record Coverage

1959 to 1973
Days with data per year at Dierks 15 years of record at Dierks, 1959 to 1973. 2 years have data for under 90 percent of days and are left out of rankings: 1959, 1973. 1959: 183 of 365 days1960: 365 of 366 days1961: 360 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 364 of 366 days1965: 364 of 365 days1966: 365 of 365 days1967: 364 of 365 days1968: 366 of 366 days1969: 363 of 365 days1970: 360 of 365 days1971: 353 of 365 days1972: 365 of 366 days1973: 234 of 365 days196019651970
15 years of record at Dierks, 1959 to 1973. 2 years have data for under 90 percent of days and are left out of rankings: 1959, 1973.
Days with data per year at Dierks
YearDays with dataShare of yearComplete
195918350%No
1960365100%Yes
196136099%Yes
1962365100%Yes
1963365100%Yes
196436499%Yes
1965364100%Yes
1966365100%Yes
1967364100%Yes
1968366100%Yes
196936399%Yes
197036099%Yes
197135397%Yes
1972365100%Yes
197323464%No

Latest Records

20
Latest records at Dierks
DateStationRecordValueBeat old record byOld record stoodSignificance
13 January 2025Dierks, USdaily snowfall15.2 cm (6.0 in)15.2 cm (6.0 in)65 years55 of 100 (Notable)
13 January 2025Dierks, USdaily snow depth15.2 cm (6.0 in)10.1 cm (4.0 in)63 years36 of 100 (Notable)
5 November 2024Dierks, USdaily rain61.5 mm (2.4 in)16.5 mm (0.6 in)38 years25 of 100 (Routine)
12 September 2024Dierks, USdaily rain51.8 mm (2.0 in)30.5 mm (1.2 in)50 years35 of 100 (Notable)
26 March 2024Dierks, USdaily rain61.2 mm (2.4 in)29.2 mm (1.1 in)24 years28 of 100 (Routine)
30 November 2023Dierks, USdaily rain63.0 mm (2.5 in)19.6 mm (0.8 in)48 years29 of 100 (Routine)
4 October 2023Dierks, USdaily rain83.1 mm (3.3 in)34.3 mm (1.4 in)40 years34 of 100 (Routine)
10 July 2023Dierks, USdaily rain88.9 mm (3.5 in)55.4 mm (2.2 in)26 years31 of 100 (Routine)
8 February 2023Dierks, USmonthly rain127.3 mm (5.0 in)25.7 mm (1.0 in)4 years33 of 100 (Routine)
12 December 2022Dierks, USdaily rain46.2 mm (1.8 in)2.5 mm (0.10 in)23 years13 of 100 (Routine)
1 August 2022Dierks, USdaily rain27.7 mm (1.1 in)7.6 mm (0.30 in)44 years23 of 100 (Routine)
25 May 2022Dierks, USdaily rain68.6 mm (2.7 in)27.5 mm (1.1 in)27 years29 of 100 (Routine)
5 May 2022Dierks, USdaily rain44.2 mm (1.7 in)8.9 mm (0.35 in)61 years28 of 100 (Routine)
22 March 2022Dierks, USdaily rain61.0 mm (2.4 in)39.4 mm (1.6 in)8 years29 of 100 (Routine)
29 April 2021Dierks, USdaily rain66.5 mm (2.6 in)8.1 mm (0.32 in)4 years11 of 100 (Routine)
26 February 2021Dierks, USdaily rain50.8 mm (2.0 in)1.5 mm (0.06 in)21 years12 of 100 (Routine)
20 February 2021Dierks, USdaily snow depth5.1 cm (2.0 in)5.1 cm (2.0 in)61 years20 of 100 (Routine)
19 February 2021Dierks, USdaily snow depth12.7 cm (5.0 in)12.7 cm (5.0 in)61 years36 of 100 (Notable)
18 February 2021Dierks, USdaily snow depth (Tie)17.8 cm (7.0 in)tie43 years4 of 100 (Routine)
17 February 2021Dierks, USdaily snowfall10.2 cm (4.0 in)8.2 cm (3.2 in)42 years34 of 100 (Routine)

Climate Trend

12 complete years, 1960 to 1972
Annual mean temperature at Dierks as warming stripes, 1960 to 1972 One stripe for each of 12 complete years at Dierks, 1960 to 1972. Blue stripes are years cooler than the station's own mean of 16.3 C (61.3 F); red stripes are warmer. The coolest year was 1968, at 15.6 C (60.1 F), and the warmest was 1965, at 17.1 C (62.7 F). The strongest colour marks a difference of 0.8 C (1.4 F). 1960: 16.0 C, -0.3 C from the station mean1961: 16.0 C, -0.3 C from the station mean1962: 16.7 C, +0.4 C from the station mean1963: 16.7 C, +0.4 C from the station mean1964: 16.7 C, +0.4 C from the station mean1965: 17.1 C, +0.8 C from the station mean1966: 16.0 C, -0.3 C from the station mean1967: 16.4 C, +0.1 C from the station mean1968: 15.6 C, -0.7 C from the station mean1969: 16.3 C, 0.0 C from the station mean1970: 16.1 C, -0.2 C from the station mean1972: 15.9 C, -0.4 C from the station mean1960196219641966196819701972
One stripe for each of 12 complete years at Dierks, 1960 to 1972. Blue stripes are years cooler than the station's own mean of 16.3 C (61.3 F); red stripes are warmer. The coolest year was 1968, at 15.6 C (60.1 F), and the warmest was 1965, at 17.1 C (62.7 F). The strongest colour marks a difference of 0.8 C (1.4 F).
Annual mean temperature at Dierks as warming stripes, 1960 to 1972
YearAnnual mean temperatureDifference from the station mean
196016.0 C-0.31 C
196116.0 C-0.30 C
196216.7 C+0.42 C
196316.7 C+0.40 C
196416.7 C+0.39 C
196517.1 C+0.78 C
196616.0 C-0.29 C
196716.4 C+0.10 C
196815.6 C-0.68 C
196916.3 C+0.00 C
197016.1 C-0.16 C
197215.9 C-0.37 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

1959 to 2026
Yearly extremes at Dierks: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.2 C (108.0 F)196338.9 C (102.0 F)15
Coldest night (TNn)-23.3 C (-9.9 F)1962-12.2 C (10.0 F)15
Wettest day (Rx1day)410.7 mm (16.2 in)201991.9 mm (3.6 in)67
Wettest five days (Rx5day)344.5 mm (13.6 in)1983139.1 mm (5.5 in)66
Longest dry spell (CDD)49 days197821 days67

Hottest day (TXx)

Hottest day (TXx) at Dierks by year The hottest day of the year at Dierks, 1959 to 2026. The record is 42.2 C (108.0 F) in 1963, marked on the chart; the median year is 38.9 C (102.0 F). 3436384042441960198020002020Record: 42.2 C (108.0 F) in 1963
The hottest day of the year at Dierks, 1959 to 2026. The record is 42.2 C (108.0 F) in 1963, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Dierks by year
YearHottest day (TXx)
195936.7 C (98.1 F)
196038.9 C (102.0 F)
196136.1 C (97.0 F)
196238.9 C (102.0 F)
196342.2 C (108.0 F)
196441.7 C (107.1 F)
196538.9 C (102.0 F)
196639.4 C (102.9 F)
196736.7 C (98.1 F)
196836.7 C (98.1 F)
196939.4 C (102.9 F)
197039.4 C (102.9 F)
197140.0 C (104.0 F)
197238.9 C (102.0 F)
197335.6 C (96.1 F)
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/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 Dierks by year The coldest night of the year at Dierks, 1959 to 2026. The record is -23.3 C (-9.9 F) in 1962, marked on the chart; the median year is -12.2 C (10.0 F). -25-20-15-101960198020002020Record: -23.3 C (-9.9 F) in 1962
The coldest night of the year at Dierks, 1959 to 2026. The record is -23.3 C (-9.9 F) in 1962, marked on the chart; the median year is -12.2 C (10.0 F).
Coldest night (TNn) at Dierks by year
YearColdest night (TNn)
1959-11.7 C (10.9 F)
1960-10.6 C (12.9 F)
1961-12.8 C (9.0 F)
1962-23.3 C (-9.9 F)
1963-17.8 C (0.0 F)
1964-16.7 C (1.9 F)
1965-14.4 C (6.1 F)
1966-18.3 C (-0.9 F)
1967-11.7 C (10.9 F)
1968-12.2 C (10.0 F)
1969-10.0 C (14.0 F)
1970-16.7 C (1.9 F)
1971-11.7 C (10.9 F)
1972-11.7 C (10.9 F)
1973-11.7 C (10.9 F)
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/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 Dierks by year The wettest day of the year at Dierks, 1959 to 2026. The record is 410.7 mm (16.2 in) in 2019, marked on the chart; the median year is 91.9 mm (3.6 in). 01002003004005001960198020002020Record: 410.7 mm (16.2 in) in 2019
The wettest day of the year at Dierks, 1959 to 2026. The record is 410.7 mm (16.2 in) in 2019, marked on the chart; the median year is 91.9 mm (3.6 in).
Wettest day (Rx1day) at Dierks by year
YearWettest day (Rx1day)
195965.5 mm (2.6 in)
196086.9 mm (3.4 in)
1961271.0 mm (10.7 in)
196253.1 mm (2.1 in)
196373.7 mm (2.9 in)
196473.2 mm (2.9 in)
196593.7 mm (3.7 in)
196679.2 mm (3.1 in)
196791.9 mm (3.6 in)
196880.3 mm (3.2 in)
1969152.4 mm (6.0 in)
197058.4 mm (2.3 in)
197166.0 mm (2.6 in)
1972101.6 mm (4.0 in)
1973100.1 mm (3.9 in)
197495.3 mm (3.8 in)
1975115.1 mm (4.5 in)
1976106.7 mm (4.2 in)
197778.0 mm (3.1 in)
1978154.9 mm (6.1 in)
197999.1 mm (3.9 in)
1980177.8 mm (7.0 in)
198190.4 mm (3.6 in)
1982304.8 mm (12.0 in)
1983204.0 mm (8.0 in)
198577.0 mm (3.0 in)
198692.2 mm (3.6 in)
198791.4 mm (3.6 in)
1988125.0 mm (4.9 in)
1989133.6 mm (5.3 in)
1990198.1 mm (7.8 in)
199181.8 mm (3.2 in)
199284.3 mm (3.3 in)
1993108.0 mm (4.3 in)
199499.1 mm (3.9 in)
199582.8 mm (3.3 in)
199685.9 mm (3.4 in)
1997109.7 mm (4.3 in)
199880.3 mm (3.2 in)
199968.8 mm (2.7 in)
2000106.2 mm (4.2 in)
200175.2 mm (3.0 in)
200271.1 mm (2.8 in)
2003106.7 mm (4.2 in)
200478.0 mm (3.1 in)
200585.6 mm (3.4 in)
200692.2 mm (3.6 in)
200782.3 mm (3.2 in)
2008105.9 mm (4.2 in)
200996.0 mm (3.8 in)
201074.9 mm (2.9 in)
2011109.0 mm (4.3 in)
201264.0 mm (2.5 in)
201360.2 mm (2.4 in)
2014129.5 mm (5.1 in)
2015108.2 mm (4.3 in)
201681.3 mm (3.2 in)
201781.3 mm (3.2 in)
2018104.9 mm (4.1 in)
2019410.7 mm (16.2 in)
2020165.1 mm (6.5 in)
202171.1 mm (2.8 in)
202268.6 mm (2.7 in)
2023127.3 mm (5.0 in)
202461.5 mm (2.4 in)
2025132.1 mm (5.2 in)
202651.3 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Dierks by year The wettest five days of the year at Dierks, 1959 to 2026. The record is 344.5 mm (13.6 in) in 1983, marked on the chart; the median year is 139.1 mm (5.5 in). 01002003004001960198020002020Record: 344.5 mm (13.6 in) in 1983
The wettest five days of the year at Dierks, 1959 to 2026. The record is 344.5 mm (13.6 in) in 1983, marked on the chart; the median year is 139.1 mm (5.5 in).
Wettest five days (Rx5day) at Dierks by year
YearWettest five days (Rx5day)
195981.3 mm (3.2 in)
1960144.6 mm (5.7 in)
1961274.3 mm (10.8 in)
1962116.7 mm (4.6 in)
196378.5 mm (3.1 in)
1964178.3 mm (7.0 in)
1965126.2 mm (5.0 in)
1966182.3 mm (7.2 in)
1967128.2 mm (5.0 in)
1968191.3 mm (7.5 in)
1969190.7 mm (7.5 in)
1970122.7 mm (4.8 in)
1971135.8 mm (5.3 in)
1972165.1 mm (6.5 in)
1973182.1 mm (7.2 in)
1974221.4 mm (8.7 in)
1975224.4 mm (8.8 in)
1976120.1 mm (4.7 in)
1977126.5 mm (5.0 in)
1978272.5 mm (10.7 in)
1979102.4 mm (4.0 in)
1980268.2 mm (10.6 in)
1981161.3 mm (6.4 in)
1982318.5 mm (12.5 in)
1983344.5 mm (13.6 in)
198587.7 mm (3.5 in)
1986158.6 mm (6.2 in)
1987195.1 mm (7.7 in)
1988180.1 mm (7.1 in)
1989187.5 mm (7.4 in)
1990255.7 mm (10.1 in)
1991133.7 mm (5.3 in)
1992123.7 mm (4.9 in)
1993194.9 mm (7.7 in)
1994161.3 mm (6.4 in)
1995110.4 mm (4.3 in)
1996129.2 mm (5.1 in)
1997130.3 mm (5.1 in)
1998128.3 mm (5.1 in)
199989.4 mm (3.5 in)
2000194.6 mm (7.7 in)
2001151.4 mm (6.0 in)
2002108.2 mm (4.3 in)
2003116.8 mm (4.6 in)
200482.3 mm (3.2 in)
2005122.9 mm (4.8 in)
2006167.4 mm (6.6 in)
2007182.7 mm (7.2 in)
2008150.9 mm (5.9 in)
2009174.4 mm (6.9 in)
201096.7 mm (3.8 in)
2011160.6 mm (6.3 in)
201292.6 mm (3.6 in)
2013142.3 mm (5.6 in)
2014151.6 mm (6.0 in)
2015126.8 mm (5.0 in)
2016115.6 mm (4.6 in)
201717.8 mm (0.7 in)
2018n/a
201960.5 mm (2.4 in)
2020217.4 mm (8.6 in)
202171.4 mm (2.8 in)
202283.8 mm (3.3 in)
2023155.1 mm (6.1 in)
202477.2 mm (3.0 in)
2025134.6 mm (5.3 in)
202612.4 mm (0.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Dierks by year The longest dry spell of the year at Dierks, 1959 to 2026. The record is 49 days in 1978, marked on the chart; the median year is 21 days. 02040601960198020002020Record: 49 days in 1978
The longest dry spell of the year at Dierks, 1959 to 2026. The record is 49 days in 1978, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Dierks by year
YearLongest dry spell (CDD)
195925 days
196022 days
196122 days
196227 days
196343 days
196416 days
196521 days
196621 days
196719 days
196816 days
196927 days
197027 days
197124 days
197224 days
197315 days
197419 days
197537 days
197619 days
197724 days
197849 days
197919 days
198028 days
198128 days
198218 days
198320 days
198518 days
198631 days
198721 days
198819 days
198922 days
199020 days
199119 days
199221 days
199339 days
199415 days
199526 days
199619 days
199714 days
199829 days
199928 days
200021 days
200123 days
200220 days
200320 days
200423 days
200519 days
200621 days
200732 days
200818 days
200917 days
201025 days
201128 days
201235 days
201324 days
201421 days
201528 days
201615 days
201710 days
20184 days
20195 days
20205 days
20215 days
20227 days
20239 days
202431 days
202516 days
20265 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

51 years, 1960 to 2013

A day with at least 89.7 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 324.6 mm (12.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Dierks: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years89.7 mm (3.5 in)
5 years122.1 mm (4.8 in)
10 years152.3 mm (6.0 in)
25 years204.6 mm (8.1 in)
50 years257.1 mm (10.1 in)
100 years324.6 mm (12.8 in)Longer than the 51 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, 51 years of values from 1960 to 2013.

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: 304.8 mm (12.0 in) in 1982; 271.0 mm (10.7 in) in 1961; 204.0 mm (8.0 in) in 1983.

Download the Data

  • Data for Dierks standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Dierks 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).