Built 2026-10-18 (18 October 2026)

Vesper Threshold Days by Year

4 fixed thresholds counted per year at Vesper (ASN00085089): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Vesper Thresholds

  • Vesper: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1952 with 66.
  • Vesper: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1935 with 19.
  • Vesper: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1941 with 4.
  • Vesper: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1934 with 1.
  • 4 fixed thresholds have at least one qualifying day at Vesper.
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Vesper Days per year at Vesper with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 66 in 1952. 0204060801929: 451930: 381931: 411932: 421933: 381934: 441935: 511936: 421937: 381938: 291939: 461940: 341941: 361942: 331943: 361944: 381945: 351946: 531947: 491948: 381949: 371950: 411951: 431952: 661953: 531954: 401955: 451956: 591957: 451958: 491929193219351938194119441947195019531956
Days per year at Vesper with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 66 in 1952.
Days with 10 mm (0.39 in) or more of precipitation per year at Vesper
YearDaysDecade average
19294545
19303840.9
19314140.9
19324240.9
19333840.9
19344440.9
19355140.9
19364240.9
19373840.9
19382940.9
19394640.9
19403438.9
19413638.9
19423338.9
19433638.9
19443838.9
19453538.9
19465338.9
19474938.9
19483838.9
19493738.9
19504149
19514349
19526649
19535349
19544049
19554549
19565949
19574549
19584949
First to last qualifying date each year at Vesper For each year, a bar from the first to the last day at Vesper meeting 10 mm (0.39 in). 1929: 30 January 1929 to 29 December 19291930: 19 February 1930 to 27 December 19301931: 19 January 1931 to 22 December 19311932: 6 February 1932 to 25 December 19321933: 5 January 1933 to 17 December 19331934: 6 January 1934 to 9 December 19341935: 5 January 1935 to 26 December 19351936: 2 January 1936 to 31 December 19361937: 1 January 1937 to 27 December 19371938: 3 January 1938 to 4 November 19381939: 3 February 1939 to 5 December 19391940: 6 January 1940 to 28 December 19401941: 4 January 1941 to 6 December 19411942: 20 January 1942 to 19 December 19421943: 3 January 1943 to 6 December 19431944: 9 February 1944 to 21 December 19441945: 2 January 1945 to 28 December 19451946: 17 January 1946 to 29 December 19461947: 8 January 1947 to 26 December 19471948: 2 January 1948 to 29 December 19481949: 1 January 1949 to 21 December 19491950: 10 January 1950 to 30 December 19501951: 8 January 1951 to 21 December 19511952: 5 January 1952 to 27 December 19521953: 6 January 1953 to 31 December 19531954: 28 January 1954 to 12 December 19541955: 14 February 1955 to 31 December 19551956: 3 January 1956 to 29 December 19561957: 19 January 1957 to 29 December 19571958: 1 February 1958 to 17 December 195819291933193719411945194919531957JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Vesper meeting 10 mm (0.39 in).
First to last qualifying date each year at Vesper
YearFirst dateLast date
19291929-01-301929-12-29
19301930-02-191930-12-27
19311931-01-191931-12-22
19321932-02-061932-12-25
19331933-01-051933-12-17
19341934-01-061934-12-09
19351935-01-051935-12-26
19361936-01-021936-12-31
19371937-01-011937-12-27
19381938-01-031938-11-04
19391939-02-031939-12-05
19401940-01-061940-12-28
19411941-01-041941-12-06
19421942-01-201942-12-19
19431943-01-031943-12-06
19441944-02-091944-12-21
19451945-01-021945-12-28
19461946-01-171946-12-29
19471947-01-081947-12-26
19481948-01-021948-12-29
19491949-01-011949-12-21
19501950-01-101950-12-30
19511951-01-081951-12-21
19521952-01-051952-12-27
19531953-01-061953-12-31
19541954-01-281954-12-12
19551955-02-141955-12-31
19561956-01-031956-12-29
19571957-01-191957-12-29
19581958-02-011958-12-17

Every Fixed Threshold

Fixed thresholds at Vesper
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3066195249
25 mm (0.98 in): Days with 25 mm or more rain301919355
50 mm (1.97 in): Days with 50 mm or more rain26419411
100 mm (3.94 in): Days with 100 mm or more rain2119341

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1929.

Download the Data

  • Data for Vesper 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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