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Built 2026-10-19 (19 October 2026)

Lake Dismal Threshold Days by Year (ASN00020011)

3 fixed thresholds counted per year at Lake Dismal (ASN00020011): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lake Dismal Thresholds

  • Lake Dismal: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1974 with 13.
  • Lake Dismal: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1937 with 3.
  • Lake Dismal: days with 50 mm (1.97 in) or more of precipitation in 10 years, most in 1931 with 1.
  • 3 fixed thresholds have at least one qualifying day at Lake Dismal.
36 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Lake Dismal Days per year at Lake Dismal with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 13 in 1974. 0510151926: 61927: 31928: 31931: 81932: 61933: 31936: 101937: 51938: 41939: 61941: 61942: 71943: 21944: 31945: 21946: 61947: 71948: 21949: 81962: 71964: 51965: 21966: 41967: 31968: 81969: 31970: 51972: 81973: 101974: 131975: 111976: 61977: 31978: 71979: 71980: 3192619321938194319471964196819731977
Days per year at Lake Dismal with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 13 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Lake Dismal
YearDaysDecade average
192664
192734
192834
193186
193266
193336
1936106
193756
193846
193966
194164.8
194274.8
194324.8
194434.8
194524.8
194664.8
194774.8
194824.8
194984.8
196274.6
196454.6
196524.6
196644.6
196734.6
196884.6
196934.6
197057.8
197287.8
1973107.8
1974137.8
1975117.8
197667.8
197737.8
197877.8
197977.8
198033
First to last qualifying date each year at Lake Dismal For each year, a bar from the first to the last day at Lake Dismal meeting 10 mm (0.39 in). 1926: 21 March 1926 to 27 September 19261927: 5 January 1927 to 23 November 19271928: 11 February 1928 to 24 July 19281931: 13 March 1931 to 17 October 19311932: 6 April 1932 to 30 November 19321933: 5 March 1933 to 29 November 19331936: 1 January 1936 to 16 December 19361937: 8 January 1937 to 14 August 19371938: 23 August 1938 to 25 October 19381939: 25 February 1939 to 20 November 19391941: 3 January 1941 to 4 November 19411942: 12 February 1942 to 30 October 19421943: 16 February 1943 to 11 April 19431944: 6 February 1944 to 20 December 19441945: 20 June 1945 to 11 July 19451946: 17 January 1946 to 25 December 19461947: 8 February 1947 to 31 October 19471948: 11 April 1948 to 23 December 19481949: 19 February 1949 to 21 October 19491962: 11 January 1962 to 26 December 19621964: 5 September 1964 to 15 October 19641965: 22 June 1965 to 14 August 19651966: 15 February 1966 to 14 December 19661967: 24 January 1967 to 24 February 19671968: 4 January 1968 to 2 July 19681969: 23 February 1969 to 12 July 19691970: 22 April 1970 to 20 December 19701972: 8 January 1972 to 16 October 19721973: 29 March 1973 to 30 December 19731974: 12 January 1974 to 24 October 19741975: 12 February 1975 to 28 December 19751976: 12 January 1976 to 3 October 19761977: 1 January 1977 to 29 November 19771978: 17 May 1978 to 19 November 19781979: 17 January 1979 to 20 November 19791980: 28 January 1980 to 24 October 198019261933194119461964196919751980JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lake Dismal meeting 10 mm (0.39 in).
First to last qualifying date each year at Lake Dismal
YearFirst dateLast date
19261926-03-211926-09-27
19271927-01-051927-11-23
19281928-02-111928-07-24
19311931-03-131931-10-17
19321932-04-061932-11-30
19331933-03-051933-11-29
19361936-01-011936-12-16
19371937-01-081937-08-14
19381938-08-231938-10-25
19391939-02-251939-11-20
19411941-01-031941-11-04
19421942-02-121942-10-30
19431943-02-161943-04-11
19441944-02-061944-12-20
19451945-06-201945-07-11
19461946-01-171946-12-25
19471947-02-081947-10-31
19481948-04-111948-12-23
19491949-02-191949-10-21
19621962-01-111962-12-26
19641964-09-051964-10-15
19651965-06-221965-08-14
19661966-02-151966-12-14
19671967-01-241967-02-24
19681968-01-041968-07-02
19691969-02-231969-07-12
19701970-04-221970-12-20
19721972-01-081972-10-16
19731973-03-291973-12-30
19741974-01-121974-10-24
19751975-02-121975-12-28
19761976-01-121976-10-03
19771977-01-011977-11-29
19781978-05-171978-11-19
19791979-01-171979-11-20
19801980-01-281980-10-24

Every Fixed Threshold

Fixed thresholds at Lake Dismal
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain361319743
25 mm (0.98 in): Days with 25 mm or more rain28319371
50 mm (1.97 in): Days with 50 mm or more rain10119311

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

  • Data for Lake Dismal 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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