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

Utica Starved Rock Dam Threshold Days by Year (USC00118756)

17 fixed thresholds counted per year at Utica Starved Rock Dam (USC00118756): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Utica Starved Rock Dam Thresholds

  • Utica Starved Rock Dam: days with 10 mm (0.39 in) or more of precipitation in 60 years, most in 1972 with 39.
  • Utica Starved Rock Dam: days with 25 mm (0.98 in) or more of precipitation in 60 years, most in 1975 with 15.
  • Utica Starved Rock Dam: days with 50 mm (1.97 in) or more of precipitation in 48 years, most in 1982 with 4.
  • Utica Starved Rock Dam: days with 10 cm (3.9 in) or more of snowfall in 31 years, most in 1951 with 5.
  • 17 fixed thresholds have at least one qualifying day at Utica Starved Rock Dam.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Utica Starved Rock Dam Days per year at Utica Starved Rock Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 2002. 02040601998: 441999: 462000: 332001: 442002: 602003: 372004: 201998199920002001200220032004
Days per year at Utica Starved Rock Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 2002.
Days at or above 30 C (86 F) per year at Utica Starved Rock Dam
YearDaysDecade average
19984445
19994645
20003338.8
20014438.8
20026038.8
20033738.8
20042038.8
First to last qualifying date each year at Utica Starved Rock Dam For each year, a bar from the first to the last day at Utica Starved Rock Dam meeting 30 C (86 F). 1998: 15 May 1998 to 28 September 19981999: 29 May 1999 to 26 September 19992000: 2 June 2000 to 20 September 20002001: 4 May 2001 to 13 September 20012002: 16 April 2002 to 1 October 20022003: 15 April 2003 to 21 October 20032004: 7 May 2004 to 15 September 20041998199920002001200220032004JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Utica Starved Rock Dam meeting 30 C (86 F).
First to last qualifying date each year at Utica Starved Rock Dam
YearFirst dateLast date
19981998-05-151998-09-28
19991999-05-291999-09-26
20002000-06-022000-09-20
20012001-05-042001-09-13
20022002-04-162002-10-01
20032003-04-152003-10-21
20042004-05-072004-09-15

Every Fixed Threshold

Fixed thresholds at Utica Starved Rock Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days760200220
35 C (95 F): Days6719992
90 F (32.2 C): Days73220022
100 F (37.8 C): Days1119991
0 C (32 F): Ice days (max746200043
0 C (32 F): Frost days (min71382002125
-10 C (14 F): Days with min749200036
-20 C (-4 F): Days with min61220003
-30 C (-22 F): Days with min1219992
20 C (68 F): Tropical nights (min726199811
25 C (77 F): Days with min2219982
10 mm (0.39 in): Days with 10 mm or more rain6039197229
25 mm (0.98 in): Days with 25 mm or more rain601519755
50 mm (1.97 in): Days with 50 mm or more rain48419821
100 mm (3.94 in): Days with 100 mm or more rain5119581
10 cm (3.9 in): Days with 10 cm or more snowfall31519511
25 cm (9.8 in): Days with 25 cm or more snowfall1120021

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1998.

Download the Data

  • Data for Utica Starved Rock Dam 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).