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Built 2026-10-19 (19 October 2026)

Randolph Threshold Days by Year (USC00146677)

6 fixed thresholds counted per year at Randolph (USC00146677): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Randolph Thresholds

  • Randolph: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1951 with 42.
  • Randolph: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1951 with 18.
  • Randolph: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1951 with 7.
  • Randolph: days with 10 cm (3.9 in) or more of snowfall in 27 years, most in 1940 with 4.
  • 6 fixed thresholds have at least one qualifying day at Randolph.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Randolph Days per year at Randolph with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1951. 02040601919: 231920: 221921: 211922: 291923: 221924: 171925: 251926: 201927: 301928: 281929: 271930: 251931: 231932: 261933: 191934: 161935: 271936: 211937: 171938: 211939: 181940: 181941: 311942: 281943: 251944: 351945: 311946: 251947: 251948: 211949: 291950: 191951: 421952: 221953: 191954: 231955: 211956: 191957: 291958: 321959: 31191919241929193419391944194919541959
Days per year at Randolph with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1951.
Days with 10 mm (0.39 in) or more of precipitation per year at Randolph
YearDaysDecade average
19192323
19202224.1
19212124.1
19222924.1
19232224.1
19241724.1
19252524.1
19262024.1
19273024.1
19282824.1
19292724.1
19302521.3
19312321.3
19322621.3
19331921.3
19341621.3
19352721.3
19362121.3
19371721.3
19382121.3
19391821.3
19401826.8
19413126.8
19422826.8
19432526.8
19443526.8
19453126.8
19462526.8
19472526.8
19482126.8
19492926.8
19501925.7
19514225.7
19522225.7
19531925.7
19542325.7
19552125.7
19561925.7
19572925.7
19583225.7
19593125.7
First to last qualifying date each year at Randolph For each year, a bar from the first to the last day at Randolph meeting 10 mm (0.39 in). 1919: 20 February 1919 to 29 November 19191920: 5 February 1920 to 21 December 19201921: 24 January 1921 to 29 October 19211922: 29 January 1922 to 12 November 19221923: 26 February 1923 to 12 October 19231924: 16 February 1924 to 4 December 19241925: 13 March 1925 to 7 November 19251926: 3 January 1926 to 23 December 19261927: 4 February 1927 to 6 October 19271928: 6 February 1928 to 17 November 19281929: 4 January 1929 to 9 November 19291930: 26 April 1930 to 18 December 19301931: 7 March 1931 to 23 November 19311932: 5 January 1932 to 24 December 19321933: 5 March 1933 to 2 December 19331934: 4 May 1934 to 27 November 19341935: 9 May 1935 to 26 November 19351936: 1 January 1936 to 29 December 19361937: 8 January 1937 to 16 October 19371938: 17 February 1938 to 3 November 19381939: 11 March 1939 to 10 November 19391940: 17 February 1940 to 15 December 19401941: 6 March 1941 to 22 December 19411942: 14 February 1942 to 26 December 19421943: 2 February 1943 to 10 December 19431944: 27 January 1944 to 4 December 19441945: 21 February 1945 to 24 December 19451946: 5 March 1946 to 9 November 19461947: 12 March 1947 to 9 December 19471948: 27 February 1948 to 2 November 19481949: 4 January 1949 to 20 October 19491950: 28 February 1950 to 4 November 19501951: 26 February 1951 to 12 November 19511952: 9 March 1952 to 22 December 19521953: 2 March 1953 to 3 December 19531954: 20 February 1954 to 26 October 19541955: 5 January 1955 to 6 October 19551956: 1 May 1956 to 23 December 19561957: 27 January 1957 to 18 November 19571958: 21 January 1958 to 30 September 19581959: 1 January 1959 to 27 December 19591919192519311937194319491955JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Randolph meeting 10 mm (0.39 in).
First to last qualifying date each year at Randolph
YearFirst dateLast date
19191919-02-201919-11-29
19201920-02-051920-12-21
19211921-01-241921-10-29
19221922-01-291922-11-12
19231923-02-261923-10-12
19241924-02-161924-12-04
19251925-03-131925-11-07
19261926-01-031926-12-23
19271927-02-041927-10-06
19281928-02-061928-11-17
19291929-01-041929-11-09
19301930-04-261930-12-18
19311931-03-071931-11-23
19321932-01-051932-12-24
19331933-03-051933-12-02
19341934-05-041934-11-27
19351935-05-091935-11-26
19361936-01-011936-12-29
19371937-01-081937-10-16
19381938-02-171938-11-03
19391939-03-111939-11-10
19401940-02-171940-12-15
19411941-03-061941-12-22
19421942-02-141942-12-26
19431943-02-021943-12-10
19441944-01-271944-12-04
19451945-02-211945-12-24
19461946-03-051946-11-09
19471947-03-121947-12-09
19481948-02-271948-11-02
19491949-01-041949-10-20
19501950-02-281950-11-04
19511951-02-261951-11-12
19521952-03-091952-12-22
19531953-03-021953-12-03
19541954-02-201954-10-26
19551955-01-051955-10-06
19561956-05-011956-12-23
19571957-01-271957-11-18
19581958-01-211958-09-30
19591959-01-011959-12-27

Every Fixed Threshold

Fixed thresholds at Randolph
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4142195131
25 mm (0.98 in): Days with 25 mm or more rain411819517
50 mm (1.97 in): Days with 50 mm or more rain29719512
100 mm (3.94 in): Days with 100 mm or more rain7119291
10 cm (3.9 in): Days with 10 cm or more snowfall27419402
25 cm (9.8 in): Days with 25 cm or more snowfall2119371

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.

Download the Data

  • Data for Randolph 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).