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

Chicago Heights Threshold Days by Year (USC00111527)

9 fixed thresholds counted per year at Chicago Heights (USC00111527): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chicago Heights Thresholds

  • Chicago Heights: days with 10 mm (0.39 in) or more of precipitation in 11 years, most in 1902 with 35.
  • Chicago Heights: days with 25 mm (0.98 in) or more of precipitation in 11 years, most in 1902 with 14.
  • Chicago Heights: days with 50 mm (1.97 in) or more of precipitation in 10 years, most in 1942 with 2.
  • Chicago Heights: days with 10 cm (3.9 in) or more of snowfall in 5 years, most in 1944 with 3.
  • 9 fixed thresholds have at least one qualifying day at Chicago Heights.
11 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Chicago Heights Days per year at Chicago Heights with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1902. 0102030401902: 351903: 321940: 251941: 331942: 251944: 301946: 301947: 401948: 251949: 281951: 30190219401942194619481951
Days per year at Chicago Heights with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1902.
Days with 10 mm (0.39 in) or more of precipitation per year at Chicago Heights
YearDaysDecade average
19023533.5
19033233.5
19402529.5
19413329.5
19422529.5
19443029.5
19463029.5
19474029.5
19482529.5
19492829.5
19513030
First to last qualifying date each year at Chicago Heights For each year, a bar from the first to the last day at Chicago Heights meeting 10 mm (0.39 in). 1902: 28 February 1902 to 3 December 19021903: 27 January 1903 to 19 December 19031940: 14 January 1940 to 16 December 19401941: 1 January 1941 to 23 December 19411942: 30 January 1942 to 27 December 19421944: 27 January 1944 to 10 December 19441946: 9 January 1946 to 29 December 19461947: 2 January 1947 to 7 December 19471948: 1 January 1948 to 29 December 19481949: 19 January 1949 to 31 December 19491951: 2 January 1951 to 22 November 1951190219401942194619481951JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chicago Heights meeting 10 mm (0.39 in).
First to last qualifying date each year at Chicago Heights
YearFirst dateLast date
19021902-02-281902-12-03
19031903-01-271903-12-19
19401940-01-141940-12-16
19411941-01-011941-12-23
19421942-01-301942-12-27
19441944-01-271944-12-10
19461946-01-091946-12-29
19471947-01-021947-12-07
19481948-01-011948-12-29
19491949-01-191949-12-31
19511951-01-021951-11-22

Every Fixed Threshold

Fixed thresholds at Chicago Heights
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Frost days (min10n/a113
-10 C (14 F): Days with min10n/a22
-20 C (-4 F): Days with min10n/a7
20 C (68 F): Tropical nights (min10n/a3
10 mm (0.39 in): Days with 10 mm or more rain1135190230
25 mm (0.98 in): Days with 25 mm or more rain111419029
50 mm (1.97 in): Days with 50 mm or more rain10219423
100 mm (3.94 in): Days with 100 mm or more rain2119021
10 cm (3.9 in): Days with 10 cm or more snowfall5319441

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

  • Data for Chicago Heights 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).