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

Chester Threshold Days by Year (USC00191425)

6 fixed thresholds counted per year at Chester (USC00191425): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chester Thresholds

  • Chester: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1945 with 51.
  • Chester: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1954 with 20.
  • Chester: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 1938 with 6.
  • Chester: days with 10 cm (3.9 in) or more of snowfall in 9 years, most in 1951 with 8.
  • 6 fixed thresholds have at least one qualifying day at Chester.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Chester Days per year at Chester with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1945. 02040601926: 361927: 491928: 391929: 441930: 361931: 431932: 371933: 431934: 451935: 281936: 451938: 451939: 381940: 381941: 311942: 461943: 401944: 351945: 511946: 341947: 381948: 421949: 341950: 321951: 451952: 421953: 511954: 461956: 401926192919321935193919421945194819511954
Days per year at Chester with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1945.
Days with 10 mm (0.39 in) or more of precipitation per year at Chester
YearDaysDecade average
19263642
19274942
19283942
19294442
19303640
19314340
19323740
19334340
19344540
19352840
19364540
19384540
19393840
19403838.9
19413138.9
19424638.9
19434038.9
19443538.9
19455138.9
19463438.9
19473838.9
19484238.9
19493438.9
19503242.7
19514542.7
19524242.7
19535142.7
19544642.7
19564042.7
First to last qualifying date each year at Chester For each year, a bar from the first to the last day at Chester meeting 10 mm (0.39 in). 1926: 18 January 1926 to 28 December 19261927: 15 January 1927 to 31 December 19271928: 19 January 1928 to 17 December 19281929: 1 January 1929 to 24 December 19291930: 12 January 1930 to 26 December 19301931: 5 January 1931 to 24 December 19311932: 1 January 1932 to 27 December 19321933: 9 January 1933 to 26 December 19331934: 7 January 1934 to 31 December 19341935: 1 January 1935 to 15 December 19351936: 2 January 1936 to 31 December 19361938: 1 January 1938 to 26 December 19381939: 5 January 1939 to 20 December 19391940: 12 January 1940 to 28 December 19401941: 16 January 1941 to 24 December 19411942: 1 January 1942 to 30 December 19421943: 3 January 1943 to 26 December 19431944: 5 January 1944 to 27 December 19441945: 1 January 1945 to 29 December 19451946: 9 January 1946 to 29 December 19461947: 1 January 1947 to 26 December 19471948: 1 January 1948 to 31 December 19481949: 1 January 1949 to 27 December 19491950: 7 January 1950 to 30 December 19501951: 8 January 1951 to 26 December 19511952: 3 January 1952 to 12 December 19521953: 1 January 1953 to 14 December 19531954: 27 January 1954 to 30 December 19541956: 9 January 1956 to 23 December 195619261930193419391943194719511956JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chester meeting 10 mm (0.39 in).
First to last qualifying date each year at Chester
YearFirst dateLast date
19261926-01-181926-12-28
19271927-01-151927-12-31
19281928-01-191928-12-17
19291929-01-011929-12-24
19301930-01-121930-12-26
19311931-01-051931-12-24
19321932-01-011932-12-27
19331933-01-091933-12-26
19341934-01-071934-12-31
19351935-01-011935-12-15
19361936-01-021936-12-31
19381938-01-011938-12-26
19391939-01-051939-12-20
19401940-01-121940-12-28
19411941-01-161941-12-24
19421942-01-011942-12-30
19431943-01-031943-12-26
19441944-01-051944-12-27
19451945-01-011945-12-29
19461946-01-091946-12-29
19471947-01-011947-12-26
19481948-01-011948-12-31
19491949-01-011949-12-27
19501950-01-071950-12-30
19511951-01-081951-12-26
19521952-01-031952-12-12
19531953-01-011953-12-14
19541954-01-271954-12-30
19561956-01-091956-12-23

Every Fixed Threshold

Fixed thresholds at Chester
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2951194540
25 mm (0.98 in): Days with 25 mm or more rain292019549
50 mm (1.97 in): Days with 50 mm or more rain25619381
100 mm (3.94 in): Days with 100 mm or more rain4119271
10 cm (3.9 in): Days with 10 cm or more snowfall9819518
25 cm (9.8 in): Days with 25 cm or more snowfall6219472

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

  • Data for Chester 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).