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Built 2026-10-19 (19 October 2026)

Westminster Threshold Days by Year (CA006149454)

5 fixed thresholds counted per year at Westminster (CA006149454): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Westminster Thresholds

  • Westminster: days with 10 cm (3.9 in) or more of snowfall in 46 years, most in 1910 with 10.
  • Westminster: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1906 with 38.
  • Westminster: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1913 with 13.
  • Westminster: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1913 with 3.
  • 5 fixed thresholds have at least one qualifying day at Westminster.
44 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Westminster Days per year at Westminster with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1906. 0102030401883: 351884: 291885: 291886: 331887: 251888: 321889: 321890: 341891: 321892: 301893: 251894: 221895: 301896: 271897: 241898: 241900: 271901: 251902: 341903: 301904: 281905: 291906: 381907: 251908: 221909: 341910: 311911: 321912: 271913: 321914: 271915: 371916: 291917: 341918: 241922: 231923: 321924: 241925: 251926: 271927: 281930: 241931: 261932: 34188318881893189819041909191419221927
Days per year at Westminster with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1906.
Days with 10 mm (0.39 in) or more of precipitation per year at Westminster
YearDaysDecade average
18833530.7
18842930.7
18852930.7
18863330.7
18872530.7
18883230.7
18893230.7
18903427.6
18913227.6
18923027.6
18932527.6
18942227.6
18953027.6
18962727.6
18972427.6
18982427.6
19002729.2
19012529.2
19023429.2
19033029.2
19042829.2
19052929.2
19063829.2
19072529.2
19082229.2
19093429.2
19103130.3
19113230.3
19122730.3
19133230.3
19142730.3
19153730.3
19162930.3
19173430.3
19182430.3
19222326.5
19233226.5
19242426.5
19252526.5
19262726.5
19272826.5
19302428
19312628
19323428
First to last qualifying date each year at Westminster For each year, a bar from the first to the last day at Westminster meeting 10 mm (0.39 in). 1883: 13 January 1883 to 15 December 18831884: 13 February 1884 to 29 December 18841885: 26 April 1885 to 9 December 18851886: 4 January 1886 to 24 December 18861887: 24 January 1887 to 31 December 18871888: 1 January 1888 to 25 December 18881889: 9 January 1889 to 20 December 18891890: 2 January 1890 to 12 December 18901891: 29 January 1891 to 23 December 18911892: 7 January 1892 to 25 December 18921893: 5 January 1893 to 15 December 18931894: 24 January 1894 to 12 December 18941895: 10 January 1895 to 26 December 18951896: 31 January 1896 to 22 December 18961897: 4 January 1897 to 26 November 18971898: 20 January 1898 to 22 October 18981900: 2 January 1900 to 19 November 19001901: 8 January 1901 to 14 December 19011902: 3 February 1902 to 24 December 19021903: 2 January 1903 to 20 December 19031904: 13 January 1904 to 20 December 19041905: 9 January 1905 to 29 December 19051906: 4 January 1906 to 31 December 19061907: 3 January 1907 to 28 December 19071908: 12 January 1908 to 30 December 19081909: 13 January 1909 to 25 December 19091910: 18 January 1910 to 30 December 19101911: 2 January 1911 to 16 December 19111912: 9 January 1912 to 27 December 19121913: 3 January 1913 to 21 November 19131914: 4 January 1914 to 24 December 19141915: 2 January 1915 to 29 December 19151916: 8 February 1916 to 27 December 19161917: 5 January 1917 to 22 November 19171918: 6 February 1918 to 29 November 19181922: 1 January 1922 to 31 December 19221923: 16 January 1923 to 27 December 19231924: 3 January 1924 to 24 December 19241925: 1 March 1925 to 5 December 19251926: 17 February 1926 to 26 November 19261927: 5 January 1927 to 30 December 19271930: 1 January 1930 to 21 December 19301931: 12 February 1931 to 22 December 19311932: 6 January 1932 to 30 December 193218831889189519021908191419231931JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Westminster meeting 10 mm (0.39 in).
First to last qualifying date each year at Westminster
YearFirst dateLast date
18831883-01-131883-12-15
18841884-02-131884-12-29
18851885-04-261885-12-09
18861886-01-041886-12-24
18871887-01-241887-12-31
18881888-01-011888-12-25
18891889-01-091889-12-20
18901890-01-021890-12-12
18911891-01-291891-12-23
18921892-01-071892-12-25
18931893-01-051893-12-15
18941894-01-241894-12-12
18951895-01-101895-12-26
18961896-01-311896-12-22
18971897-01-041897-11-26
18981898-01-201898-10-22
19001900-01-021900-11-19
19011901-01-081901-12-14
19021902-02-031902-12-24
19031903-01-021903-12-20
19041904-01-131904-12-20
19051905-01-091905-12-29
19061906-01-041906-12-31
19071907-01-031907-12-28
19081908-01-121908-12-30
19091909-01-131909-12-25
19101910-01-181910-12-30
19111911-01-021911-12-16
19121912-01-091912-12-27
19131913-01-031913-11-21
19141914-01-041914-12-24
19151915-01-021915-12-29
19161916-02-081916-12-27
19171917-01-051917-11-22
19181918-02-061918-11-29
19221922-01-011922-12-31
19231923-01-161923-12-27
19241924-01-031924-12-24
19251925-03-011925-12-05
19261926-02-171926-11-26
19271927-01-051927-12-30
19301930-01-011930-12-21
19311931-02-121931-12-22
19321932-01-061932-12-30

Every Fixed Threshold

Fixed thresholds at Westminster
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4438190634
25 mm (0.98 in): Days with 25 mm or more rain441319139
50 mm (1.97 in): Days with 50 mm or more rain26319131
10 cm (3.9 in): Days with 10 cm or more snowfall461019102
25 cm (9.8 in): Days with 25 cm or more snowfall19218891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1883.

Download the Data

  • Data for Westminster 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).