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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Montrose Threshold Days by Year (ASN00041071)

4 fixed thresholds counted per year at Montrose (ASN00041071): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Montrose Thresholds

  • Montrose: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1947 with 33.
  • Montrose: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1947 with 13.
  • Montrose: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1942 with 4.
  • Montrose: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1937 with 1.
  • 4 fixed thresholds have at least one qualifying day at Montrose.
36 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Montrose Days per year at Montrose with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1947. 0102030401932: 171933: 301934: 301935: 181936: 211937: 171938: 221939: 181940: 161941: 221942: 231943: 271944: 201945: 291946: 211947: 331948: 271952: 261953: 191954: 191958: 161959: 281960: 241961: 271962: 321963: 181964: 281965: 151966: 231967: 201968: 281969: 231970: 221971: 261972: 251973: 25193219361940194419481958196219661970
Days per year at Montrose with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1947.
Days with 10 mm (0.39 in) or more of precipitation per year at Montrose
YearDaysDecade average
19321721.6
19333021.6
19343021.6
19351821.6
19362121.6
19371721.6
19382221.6
19391821.6
19401624.2
19412224.2
19422324.2
19432724.2
19442024.2
19452924.2
19462124.2
19473324.2
19482724.2
19522621.6
19531921.6
19541921.6
19581621.6
19592821.6
19602423.8
19612723.8
19623223.8
19631823.8
19642823.8
19651523.8
19662323.8
19672023.8
19682823.8
19692323.8
19702224.5
19712624.5
19722524.5
19732524.5
First to last qualifying date each year at Montrose For each year, a bar from the first to the last day at Montrose meeting 10 mm (0.39 in). 1932: 4 January 1932 to 21 December 19321933: 14 January 1933 to 21 December 19331934: 3 January 1934 to 27 December 19341935: 5 January 1935 to 7 December 19351936: 9 January 1936 to 24 December 19361937: 1 January 1937 to 29 December 19371938: 20 January 1938 to 21 December 19381939: 20 January 1939 to 26 December 19391940: 6 January 1940 to 20 December 19401941: 6 January 1941 to 27 November 19411942: 21 January 1942 to 31 December 19421943: 9 January 1943 to 29 December 19431944: 11 January 1944 to 20 December 19441945: 13 January 1945 to 19 December 19451946: 2 January 1946 to 6 December 19461947: 2 January 1947 to 25 December 19471948: 2 January 1948 to 31 December 19481952: 19 February 1952 to 31 December 19521953: 8 January 1953 to 27 December 19531954: 2 January 1954 to 19 November 19541958: 20 February 1958 to 18 December 19581959: 1 January 1959 to 24 December 19591960: 20 January 1960 to 15 December 19601961: 3 January 1961 to 31 December 19611962: 3 January 1962 to 30 December 19621963: 19 January 1963 to 14 December 19631964: 14 January 1964 to 25 December 19641965: 3 January 1965 to 16 December 19651966: 7 February 1966 to 31 December 19661967: 2 January 1967 to 30 December 19671968: 5 January 1968 to 25 December 19681969: 1 January 1969 to 23 December 19691970: 8 January 1970 to 27 December 19701971: 11 January 1971 to 28 December 19711972: 4 January 1972 to 29 December 19721973: 1 January 1973 to 23 December 197319321937194219471958196319681973JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Montrose meeting 10 mm (0.39 in).
First to last qualifying date each year at Montrose
YearFirst dateLast date
19321932-01-041932-12-21
19331933-01-141933-12-21
19341934-01-031934-12-27
19351935-01-051935-12-07
19361936-01-091936-12-24
19371937-01-011937-12-29
19381938-01-201938-12-21
19391939-01-201939-12-26
19401940-01-061940-12-20
19411941-01-061941-11-27
19421942-01-211942-12-31
19431943-01-091943-12-29
19441944-01-111944-12-20
19451945-01-131945-12-19
19461946-01-021946-12-06
19471947-01-021947-12-25
19481948-01-021948-12-31
19521952-02-191952-12-31
19531953-01-081953-12-27
19541954-01-021954-11-19
19581958-02-201958-12-18
19591959-01-011959-12-24
19601960-01-201960-12-15
19611961-01-031961-12-31
19621962-01-031962-12-30
19631963-01-191963-12-14
19641964-01-141964-12-25
19651965-01-031965-12-16
19661966-02-071966-12-31
19671967-01-021967-12-30
19681968-01-051968-12-25
19691969-01-011969-12-23
19701970-01-081970-12-27
19711971-01-111971-12-28
19721972-01-041972-12-29
19731973-01-011973-12-23

Every Fixed Threshold

Fixed thresholds at Montrose
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3633194725
25 mm (0.98 in): Days with 25 mm or more rain361319476
50 mm (1.97 in): Days with 50 mm or more rain27419423
100 mm (3.94 in): Days with 100 mm or more rain5119371

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1932.

Download the Data

  • Data for Montrose 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).