Built 2026-10-19 (19 October 2026)

New London Threshold Days by Year (USC00236038)

3 fixed thresholds counted per year at New London (USC00236038): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for New London Thresholds

  • New London: days with 10 mm (0.39 in) or more of precipitation in 4 years, most in 1975 with 32.
  • New London: days with 25 mm (0.98 in) or more of precipitation in 4 years, most in 1975 with 12.
  • New London: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1977 with 4.
  • 3 fixed thresholds have at least one qualifying day at New London.
4 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at New London Days per year at New London with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1975. 0102030401975: 321976: 221977: 281978: 291975197619771978
Days per year at New London with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1975.
Days with 10 mm (0.39 in) or more of precipitation per year at New London
YearDaysDecade average
19753227.8
19762227.8
19772827.8
19782927.8
First to last qualifying date each year at New London For each year, a bar from the first to the last day at New London meeting 10 mm (0.39 in). 1975: 25 January 1975 to 30 December 19751976: 16 February 1976 to 27 November 19761977: 5 January 1977 to 27 November 19771978: 3 March 1978 to 31 December 19781975197619771978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at New London meeting 10 mm (0.39 in).
First to last qualifying date each year at New London
YearFirst dateLast date
19751975-01-251975-12-30
19761976-02-161976-11-27
19771977-01-051977-11-27
19781978-03-031978-12-31

Every Fixed Threshold

Fixed thresholds at New London
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain432197529
25 mm (0.98 in): Days with 25 mm or more rain41219757
50 mm (1.97 in): Days with 50 mm or more rain3419774

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for New London 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).