Built 2026-10-19 (19 October 2026)

Conneaut Threshold Days by Year (USC00331818)

12 fixed thresholds counted per year at Conneaut (USC00331818): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Conneaut Thresholds

  • Conneaut: days with a maximum temperature at or above 30 C (86 F) in 3 years, most in 1911 with 34.
  • Conneaut: days with a maximum temperature at or above 90 F (32.2 C) in 3 years, most in 1911 with 19.
  • Conneaut: days with a maximum temperature at or below 0 C (32 F) in 3 years, most in 1912 with 53.
  • Conneaut: nights with a minimum temperature at or below 0 C (32 F) in 3 years, most in 1911 with 130.
  • 12 fixed thresholds have at least one qualifying day at Conneaut.
3 years with a qualifying day
Days at or above 30 C (86 F) per year at Conneaut Days per year at Conneaut with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 1911. 0102030401911: 341912: 211913: 27191119121913
Days per year at Conneaut with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 1911.
Days at or above 30 C (86 F) per year at Conneaut
YearDaysDecade average
19113427.3
19122127.3
19132727.3
First to last qualifying date each year at Conneaut For each year, a bar from the first to the last day at Conneaut meeting 30 C (86 F). 1911: 11 May 1911 to 2 September 19111912: 19 May 1912 to 10 September 19121913: 6 June 1913 to 7 September 1913191119121913JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Conneaut meeting 30 C (86 F).
First to last qualifying date each year at Conneaut
YearFirst dateLast date
19111911-05-111911-09-02
19121912-05-191912-09-10
19131913-06-061913-09-07

Every Fixed Threshold

Fixed thresholds at Conneaut
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days334191127
35 C (95 F): Days2519114
90 F (32.2 C): Days319191110
0 C (32 F): Ice days (max353191228
0 C (32 F): Frost days (min31301911113
-10 C (14 F): Days with min347191223
-20 C (-4 F): Days with min1619126
-30 C (-22 F): Days with min1119121
20 C (68 F): Tropical nights (min321191110
10 mm (0.39 in): Days with 10 mm or more rain339191339
25 mm (0.98 in): Days with 25 mm or more rain3819138
50 mm (1.97 in): Days with 50 mm or more rain3219121

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

Download the Data

  • Data for Conneaut 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).