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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Watford Threshold Days by Year (CA006129389)

13 fixed thresholds counted per year at Watford (CA006129389): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Watford Thresholds

  • Watford: days with a maximum temperature at or above 30 C (86 F) in 4 years, most in 1925 with 33.
  • Watford: days with a maximum temperature at or above 90 F (32.2 C) in 4 years, most in 1925 with 12.
  • Watford: days with a maximum temperature at or below 0 C (32 F) in 4 years, most in 1926 with 82.
  • Watford: nights with a minimum temperature at or below 0 C (32 F) in 4 years, most in 1926 with 171.
  • 13 fixed thresholds have at least one qualifying day at Watford.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at Watford Days per year at Watford with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1925. 0102030401925: 331926: 91927: 101928: 101925192619271928
Days per year at Watford with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1925.
Days at or above 30 C (86 F) per year at Watford
YearDaysDecade average
19253315.5
1926915.5
19271015.5
19281015.5
First to last qualifying date each year at Watford For each year, a bar from the first to the last day at Watford meeting 30 C (86 F). 1925: 23 April 1925 to 3 September 19251926: 29 June 1926 to 28 August 19261927: 29 June 1927 to 17 September 19271928: 7 July 1928 to 12 October 19281925192619271928JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Watford meeting 30 C (86 F).
First to last qualifying date each year at Watford
YearFirst dateLast date
19251925-04-231925-09-03
19261926-06-291926-08-28
19271927-06-291927-09-17
19281928-07-071928-10-12

Every Fixed Threshold

Fixed thresholds at Watford
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days433192510
35 C (95 F): Days2319252
90 F (32.2 C): Days41219253
0 C (32 F): Ice days (max482192654
0 C (32 F): Frost days (min41711926152
-10 C (14 F): Days with min450192635
-20 C (-4 F): Days with min4619252
20 C (68 F): Tropical nights (min4719257
10 mm (0.39 in): Days with 10 mm or more rain441192841
25 mm (0.98 in): Days with 25 mm or more rain412192612
50 mm (1.97 in): Days with 50 mm or more rain4219272
10 cm (3.9 in): Days with 10 cm or more snowfall4419284
25 cm (9.8 in): Days with 25 cm or more snowfall4219271

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1925.

Download the Data

  • Data for Watford 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 (2026-10-17).