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

Gower Threshold Days by Year (USC00293626)

13 fixed thresholds counted per year at Gower (USC00293626): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Gower Thresholds

  • Gower: days with 10 mm (0.39 in) or more of precipitation in 15 years, most in 1931 with 19.
  • Gower: days with 10 cm (3.9 in) or more of snowfall in 11 years, most in 1944 with 19.
  • Gower: days with a maximum temperature at or above 30 C (86 F) in 10 years, most in 1942 with 42.
  • Gower: nights with a minimum temperature at or below 0 C (32 F) in 10 years, most in 1939 with 215.
  • 13 fixed thresholds have at least one qualifying day at Gower.
10 years with a qualifying day
Days at or above 30 C (86 F) per year at Gower Days per year at Gower with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 1942. 02040601939: 411940: 401941: 131942: 421943: 371944: 371945: 381946: 321947: 231948: 261939194019411942194319441945194619471948
Days per year at Gower with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 1942.
Days at or above 30 C (86 F) per year at Gower
YearDaysDecade average
19394141
19404032
19411332
19424232
19433732
19443732
19453832
19463232
19472332
19482632
First to last qualifying date each year at Gower For each year, a bar from the first to the last day at Gower meeting 30 C (86 F). 1939: 12 June 1939 to 23 August 19391940: 15 June 1940 to 19 August 19401941: 19 June 1941 to 6 August 19411942: 16 June 1942 to 1 September 19421943: 17 June 1943 to 22 August 19431944: 19 June 1944 to 22 September 19441945: 21 June 1945 to 11 September 19451946: 4 June 1946 to 26 August 19461947: 3 May 1947 to 7 August 19471948: 10 June 1948 to 4 September 194819391941194319451947JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Gower meeting 30 C (86 F).
First to last qualifying date each year at Gower
YearFirst dateLast date
19391939-06-121939-08-23
19401940-06-151940-08-19
19411941-06-191941-08-06
19421942-06-161942-09-01
19431943-06-171943-08-22
19441944-06-191944-09-22
19451945-06-211945-09-11
19461946-06-041946-08-26
19471947-05-031947-08-07
19481948-06-101948-09-04

Every Fixed Threshold

Fixed thresholds at Gower
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1042194226
35 C (95 F): Days1119401
90 F (32.2 C): Days91719408
0 C (32 F): Ice days (max93819397
0 C (32 F): Frost days (min102151939154
-10 C (14 F): Days with min1068193939
-20 C (-4 F): Days with min81919395
20 C (68 F): Tropical nights (min2119471
10 mm (0.39 in): Days with 10 mm or more rain1519193113
25 mm (0.98 in): Days with 25 mm or more rain10519313
50 mm (1.97 in): Days with 50 mm or more rain1119311
10 cm (3.9 in): Days with 10 cm or more snowfall1119194410
25 cm (9.8 in): Days with 25 cm or more snowfall3119341

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for Gower 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).