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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Circle City Threshold Days by Year

12 fixed thresholds counted per year at Circle City (USC00501977): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Circle City Thresholds

  • Circle City: days with 10 mm (0.39 in) or more of precipitation in 11 years, most in 1986 with 6.
  • Circle City: days with 10 cm (3.9 in) or more of snowfall in 11 years, most in 1986 with 4.
  • Circle City: nights with a minimum temperature at or below 0 C (32 F) in 6 years, most in 1980 with 256.
  • Circle City: nights with a minimum temperature at or below -10 C (14 F) in 6 years, most in 1980 with 182.
  • 12 fixed thresholds have at least one qualifying day at Circle City.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Circle City Days per year at Circle City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1994. 0510151980: 21982: 41986: 21987: 31994: 1319801982198619871994
Days per year at Circle City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1994.
Days at or above 30 C (86 F) per year at Circle City
YearDaysDecade average
198022.8
198242.8
198622.8
198732.8
19941313
First to last qualifying date each year at Circle City For each year, a bar from the first to the last day at Circle City meeting 30 C (86 F). 1980: 26 June 1980 to 25 July 19801982: 27 June 1982 to 9 July 19821986: 5 July 1986 to 7 July 19861987: 22 June 1987 to 30 June 19871994: 14 June 1994 to 11 August 199419801982198619871994JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Circle City meeting 30 C (86 F).
First to last qualifying date each year at Circle City
YearFirst dateLast date
19801980-06-261980-07-25
19821982-06-271982-07-09
19861986-07-051986-07-07
19871987-06-221987-06-30
19941994-06-141994-08-11

Every Fixed Threshold

Fixed thresholds at Circle City
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days513199413
90 F (32.2 C): Days3319943
0 C (32 F): Ice days (max51801982176
0 C (32 F): Frost days (min62561980243
-10 C (14 F): Days with min61821980174
-20 C (-4 F): Days with min61381994138
-30 C (-22 F): Days with min687199487
-40 C (-40 F): Days with min637198034
10 mm (0.39 in): Days with 10 mm or more rain11619862
25 mm (0.98 in): Days with 25 mm or more rain3119871
10 cm (3.9 in): Days with 10 cm or more snowfall11419861
25 cm (9.8 in): Days with 25 cm or more snowfall10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1980.

Download the Data

  • Data for Circle City 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).