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Built 2026-10-19 (19 October 2026)

Dartmoor Threshold Days by Year (ASN00090032)

3 fixed thresholds counted per year at Dartmoor (ASN00090032): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dartmoor Thresholds

  • Dartmoor: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 1909 with 38.
  • Dartmoor: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1895 with 8.
  • Dartmoor: days with 50 mm (1.97 in) or more of precipitation in 10 years, most in 1946 with 4.
  • 3 fixed thresholds have at least one qualifying day at Dartmoor.
68 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Dartmoor Days per year at Dartmoor with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1909. 0102030401885: 221886: 201887: 281888: 211889: 221890: 251891: 201892: 261893: 291894: 281895: 211896: 201897: 141898: 201899: 191900: 91901: 201902: 181903: 281904: 191905: 281906: 261907: 241908: 201909: 381910: 341911: 221912: 311913: 201914: 131915: 311916: 201934: 201935: 201937: 211938: 171939: 291940: 161941: 271942: 251943: 211944: 231945: 191946: 281947: 341948: 211949: 221950: 201951: 201952: 341953: 311954: 201955: 241956: 311957: 171958: 321959: 151960: 351961: 151962: 181963: 141964: 231965: 181967: 61968: 231969: 141970: 261971: 271885189218991906191319381945195219591967
Days per year at Dartmoor with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1909.
Days with 10 mm (0.39 in) or more of precipitation per year at Dartmoor
YearDaysDecade average
18852222.6
18862022.6
18872822.6
18882122.6
18892222.6
18902522.2
18912022.2
18922622.2
18932922.2
18942822.2
18952122.2
18962022.2
18971422.2
18982022.2
18991922.2
1900923
19012023
19021823
19032823
19041923
19052823
19062623
19072423
19082023
19093823
19103424.4
19112224.4
19123124.4
19132024.4
19141324.4
19153124.4
19162024.4
19342021.4
19352021.4
19372121.4
19381721.4
19392921.4
19401623.6
19412723.6
19422523.6
19432123.6
19442323.6
19451923.6
19462823.6
19473423.6
19482123.6
19492223.6
19502024.4
19512024.4
19523424.4
19533124.4
19542024.4
19552424.4
19563124.4
19571724.4
19583224.4
19591524.4
19603518.4
19611518.4
19621818.4
19631418.4
19642318.4
19651818.4
1967618.4
19682318.4
19691418.4
19702626.5
19712726.5
First to last qualifying date each year at Dartmoor For each year, a bar from the first to the last day at Dartmoor meeting 10 mm (0.39 in). 1885: 6 January 1885 to 23 December 18851886: 31 January 1886 to 25 November 18861887: 14 January 1887 to 12 December 18871888: 4 February 1888 to 14 December 18881889: 2 January 1889 to 21 December 18891890: 21 January 1890 to 28 December 18901891: 5 January 1891 to 16 December 18911892: 26 March 1892 to 14 December 18921893: 18 January 1893 to 15 December 18931894: 11 January 1894 to 24 December 18941895: 8 January 1895 to 30 November 18951896: 17 January 1896 to 28 December 18961897: 15 March 1897 to 1 November 18971898: 26 February 1898 to 24 November 18981899: 26 February 1899 to 7 November 18991900: 14 March 1900 to 5 October 19001901: 5 January 1901 to 21 December 19011902: 25 February 1902 to 24 December 19021903: 5 January 1903 to 1 December 19031904: 3 January 1904 to 2 November 19041905: 7 April 1905 to 3 December 19051906: 28 February 1906 to 29 November 19061907: 4 April 1907 to 28 December 19071908: 8 February 1908 to 2 November 19081909: 5 January 1909 to 1 December 19091910: 17 January 1910 to 23 December 19101911: 4 February 1911 to 12 December 19111912: 23 February 1912 to 10 December 19121913: 13 March 1913 to 25 December 19131914: 10 March 1914 to 15 December 19141915: 6 January 1915 to 27 October 19151916: 6 January 1916 to 29 December 19161934: 3 April 1934 to 30 November 19341935: 5 January 1935 to 25 November 19351937: 19 January 1937 to 27 December 19371938: 14 January 1938 to 27 December 19381939: 5 April 1939 to 5 December 19391940: 5 January 1940 to 11 November 19401941: 24 January 1941 to 4 December 19411942: 20 January 1942 to 19 December 19421943: 17 February 1943 to 18 October 19431944: 4 January 1944 to 21 December 19441945: 31 January 1945 to 27 December 19451946: 17 January 1946 to 28 December 19461947: 7 January 1947 to 13 December 19471948: 1 March 1948 to 7 November 19481949: 14 January 1949 to 22 November 19491950: 9 January 1950 to 21 December 19501951: 19 February 1951 to 8 December 19511952: 4 January 1952 to 11 December 19521953: 5 January 1953 to 9 December 19531954: 28 January 1954 to 13 December 19541955: 14 February 1955 to 23 November 19551956: 2 January 1956 to 19 December 19561957: 7 February 1957 to 27 December 19571958: 30 January 1958 to 24 November 19581959: 6 February 1959 to 10 December 19591960: 2 January 1960 to 22 November 19601961: 11 April 1961 to 15 December 19611962: 20 February 1962 to 11 December 19621963: 14 January 1963 to 11 September 19631964: 1 March 1964 to 21 December 19641965: 11 March 1965 to 7 December 19651967: 13 January 1967 to 13 December 19671968: 29 March 1968 to 25 December 19681969: 10 February 1969 to 11 December 19691970: 1 January 1970 to 31 December 19701971: 23 March 1971 to 31 December 197118851894190319121939194819571967JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Dartmoor meeting 10 mm (0.39 in).
First to last qualifying date each year at Dartmoor
YearFirst dateLast date
18851885-01-061885-12-23
18861886-01-311886-11-25
18871887-01-141887-12-12
18881888-02-041888-12-14
18891889-01-021889-12-21
18901890-01-211890-12-28
18911891-01-051891-12-16
18921892-03-261892-12-14
18931893-01-181893-12-15
18941894-01-111894-12-24
18951895-01-081895-11-30
18961896-01-171896-12-28
18971897-03-151897-11-01
18981898-02-261898-11-24
18991899-02-261899-11-07
19001900-03-141900-10-05
19011901-01-051901-12-21
19021902-02-251902-12-24
19031903-01-051903-12-01
19041904-01-031904-11-02
19051905-04-071905-12-03
19061906-02-281906-11-29
19071907-04-041907-12-28
19081908-02-081908-11-02
19091909-01-051909-12-01
19101910-01-171910-12-23
19111911-02-041911-12-12
19121912-02-231912-12-10
19131913-03-131913-12-25
19141914-03-101914-12-15
19151915-01-061915-10-27
19161916-01-061916-12-29
19341934-04-031934-11-30
19351935-01-051935-11-25
19371937-01-191937-12-27
19381938-01-141938-12-27
19391939-04-051939-12-05
19401940-01-051940-11-11
19411941-01-241941-12-04
19421942-01-201942-12-19
19431943-02-171943-10-18
19441944-01-041944-12-21
19451945-01-311945-12-27
19461946-01-171946-12-28
19471947-01-071947-12-13
19481948-03-011948-11-07
19491949-01-141949-11-22
19501950-01-091950-12-21
19511951-02-191951-12-08
19521952-01-041952-12-11
19531953-01-051953-12-09
19541954-01-281954-12-13
19551955-02-141955-11-23
19561956-01-021956-12-19
19571957-02-071957-12-27
19581958-01-301958-11-24
19591959-02-061959-12-10
19601960-01-021960-11-22
19611961-04-111961-12-15
19621962-02-201962-12-11
19631963-01-141963-09-11
19641964-03-011964-12-21
19651965-03-111965-12-07
19671967-01-131967-12-13
19681968-03-291968-12-25
19691969-02-101969-12-11
19701970-01-011970-12-31
19711971-03-231971-12-31

Every Fixed Threshold

Fixed thresholds at Dartmoor
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain6838190927
25 mm (0.98 in): Days with 25 mm or more rain62818956
50 mm (1.97 in): Days with 50 mm or more rain10419462

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1885.

Download the Data

  • Data for Dartmoor 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).