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Built 2026-10-19 (19 October 2026)

Ellsworth Threshold Days by Year (USC00332580)

13 fixed thresholds counted per year at Ellsworth (USC00332580): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ellsworth Thresholds

  • Ellsworth: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1956 with 45.
  • Ellsworth: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1942 with 11.
  • Ellsworth: days with 50 mm (1.97 in) or more of precipitation in 21 years, most in 1954 with 4.
  • Ellsworth: days with 10 cm (3.9 in) or more of snowfall in 8 years, most in 1951 with 6.
  • 13 fixed thresholds have at least one qualifying day at Ellsworth.
34 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ellsworth Days per year at Ellsworth with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1956. 02040601893: 261894: 281927: 361928: 321929: 321930: 131931: 231932: 331933: 211934: 211935: 301936: 271937: 321938: 381939: 261940: 371941: 231942: 421943: 251944: 301945: 311946: 251947: 281948: 341949: 221950: 431951: 341952: 341953: 231954: 311955: 331956: 451957: 261958: 32189319291933193719411945194919531957
Days per year at Ellsworth with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1956.
Days with 10 mm (0.39 in) or more of precipitation per year at Ellsworth
YearDaysDecade average
18932627
18942827
19273633.3
19283233.3
19293233.3
19301326.4
19312326.4
19323326.4
19332126.4
19342126.4
19353026.4
19362726.4
19373226.4
19383826.4
19392626.4
19403729.7
19412329.7
19424229.7
19432529.7
19443029.7
19453129.7
19462529.7
19472829.7
19483429.7
19492229.7
19504333.4
19513433.4
19523433.4
19532333.4
19543133.4
19553333.4
19564533.4
19572633.4
19583233.4
First to last qualifying date each year at Ellsworth For each year, a bar from the first to the last day at Ellsworth meeting 10 mm (0.39 in). 1893: 2 February 1893 to 15 December 18931894: 5 January 1894 to 27 December 18941927: 19 January 1927 to 31 December 19271928: 19 January 1928 to 14 December 19281929: 1 January 1929 to 19 December 19291930: 2 March 1930 to 8 October 19301931: 8 March 1931 to 13 December 19311932: 1 January 1932 to 31 December 19321933: 8 March 1933 to 16 December 19331934: 7 January 1934 to 1 December 19341935: 17 January 1935 to 13 December 19351936: 9 January 1936 to 4 November 19361937: 13 January 1937 to 18 December 19371938: 5 March 1938 to 19 November 19381939: 30 January 1939 to 27 October 19391940: 14 January 1940 to 29 December 19401941: 4 March 1941 to 1 November 19411942: 5 February 1942 to 30 December 19421943: 4 January 1943 to 8 November 19431944: 3 January 1944 to 25 December 19441945: 1 January 1945 to 25 December 19451946: 13 February 1946 to 12 December 19461947: 2 January 1947 to 16 December 19471948: 1 January 1948 to 29 December 19481949: 5 January 1949 to 18 December 19491950: 3 January 1950 to 7 December 19501951: 1 February 1951 to 25 December 19511952: 17 January 1952 to 11 December 19521953: 17 January 1953 to 14 December 19531954: 16 January 1954 to 30 December 19541955: 6 February 1955 to 23 November 19551956: 2 February 1956 to 9 December 19561957: 29 January 1957 to 26 December 19571958: 14 January 1958 to 3 December 19581893193019351940194519501955JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ellsworth meeting 10 mm (0.39 in).
First to last qualifying date each year at Ellsworth
YearFirst dateLast date
18931893-02-021893-12-15
18941894-01-051894-12-27
19271927-01-191927-12-31
19281928-01-191928-12-14
19291929-01-011929-12-19
19301930-03-021930-10-08
19311931-03-081931-12-13
19321932-01-011932-12-31
19331933-03-081933-12-16
19341934-01-071934-12-01
19351935-01-171935-12-13
19361936-01-091936-11-04
19371937-01-131937-12-18
19381938-03-051938-11-19
19391939-01-301939-10-27
19401940-01-141940-12-29
19411941-03-041941-11-01
19421942-02-051942-12-30
19431943-01-041943-11-08
19441944-01-031944-12-25
19451945-01-011945-12-25
19461946-02-131946-12-12
19471947-01-021947-12-16
19481948-01-011948-12-29
19491949-01-051949-12-18
19501950-01-031950-12-07
19511951-02-011951-12-25
19521952-01-171952-12-11
19531953-01-171953-12-14
19541954-01-161954-12-30
19551955-02-061955-11-23
19561956-02-021956-12-09
19571957-01-291957-12-26
19581958-01-141958-12-03

Every Fixed Threshold

Fixed thresholds at Ellsworth
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days246189441
35 C (95 F): Days2218952
90 F (32.2 C): Days222189522
0 C (32 F): Ice days (max251189551
0 C (32 F): Frost days (min21531895153
-10 C (14 F): Days with min253189553
-20 C (-4 F): Days with min2618956
20 C (68 F): Tropical nights (min210189510
10 mm (0.39 in): Days with 10 mm or more rain3445195632
25 mm (0.98 in): Days with 25 mm or more rain341119427
50 mm (1.97 in): Days with 50 mm or more rain21419542
100 mm (3.94 in): Days with 100 mm or more rain1119341
10 cm (3.9 in): Days with 10 cm or more snowfall8619513

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

  • Data for Ellsworth 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).