Built 2026-10-18 (18 October 2026)

Southampton Threshold Days by Year

4 fixed thresholds counted per year at Southampton (USC00368263): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Southampton Thresholds

  • Southampton: days with 10 mm (0.39 in) or more of precipitation in 8 years, most in 1983 with 49.
  • Southampton: days with 25 mm (0.98 in) or more of precipitation in 8 years, most in 1983 with 18.
  • Southampton: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1985 with 4.
  • Southampton: days with 10 cm (3.9 in) or more of snowfall in 1 years, most in 2025 with 1.
  • 4 fixed thresholds have at least one qualifying day at Southampton.
8 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Southampton Days per year at Southampton with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 49 in 1983. 02040601980: 361981: 421983: 491984: 441985: 301986: 401991: 392025: 819801981198319841985198619912025
Days per year at Southampton with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 49 in 1983.
Days with 10 mm (0.39 in) or more of precipitation per year at Southampton
YearDaysDecade average
19803640.2
19814240.2
19834940.2
19844440.2
19853040.2
19864040.2
19913939
202588
First to last qualifying date each year at Southampton For each year, a bar from the first to the last day at Southampton meeting 10 mm (0.39 in). 1980: 12 January 1980 to 25 December 19801981: 6 January 1981 to 16 December 19811983: 6 January 1983 to 29 December 19831984: 11 January 1984 to 22 December 19841985: 11 January 1985 to 29 November 19851986: 20 January 1986 to 24 December 19861991: 10 January 1991 to 29 December 19912025: 31 October 2025 to 27 December 202519801981198319841985198619912025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Southampton meeting 10 mm (0.39 in).
First to last qualifying date each year at Southampton
YearFirst dateLast date
19801980-01-121980-12-25
19811981-01-061981-12-16
19831983-01-061983-12-29
19841984-01-111984-12-22
19851985-01-111985-11-29
19861986-01-201986-12-24
19911991-01-101991-12-29
20252025-10-312025-12-27

Every Fixed Threshold

Fixed thresholds at Southampton
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain84919838
25 mm (0.98 in): Days with 25 mm or more rain81819831
50 mm (1.97 in): Days with 50 mm or more rain7419853
10 cm (3.9 in): Days with 10 cm or more snowfall1120251

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 Southampton 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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