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Built 2026-10-19 (19 October 2026)

Hampstead Threshold Days by Year (UKE00105915)

10 fixed thresholds counted per year at Hampstead (UKE00105915): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hampstead Thresholds

  • Hampstead: nights with a minimum temperature at or below 0 C (32 F) in 53 years, most in 1963 with 81.
  • Hampstead: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 2002 with 35.
  • Hampstead: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1971 with 4.
  • Hampstead: days with a maximum temperature at or below 0 C (32 F) in 30 years, most in 1963 with 26.
  • 10 fixed thresholds have at least one qualifying day at Hampstead.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Hampstead Days per year at Hampstead with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 14 in 1976. 0510151961: 21969: 11970: 11973: 11975: 41976: 141983: 41984: 11989: 21990: 51994: 21996: 41999: 12000: 12001: 22002: 22003: 92004: 22005: 42006: 102011: 12013: 52014: 12015: 119611973198319901999200220052013
Days per year at Hampstead with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 14 in 1976.
Days at or above 30 C (86 F) per year at Hampstead
YearDaysDecade average
196121.5
196911.5
197015
197315
197545
1976145
198342.3
198412.3
198922.3
199053
199423
199643
199913
200014.3
200124.3
200224.3
200394.3
200424.3
200544.3
2006104.3
201112
201352
201412
201512
First to last qualifying date each year at Hampstead For each year, a bar from the first to the last day at Hampstead meeting 30 C (86 F). 1961: 30 June 1961 to 28 August 19611969: 15 July 1969 to 15 July 19691970: 6 July 1970 to 6 July 19701973: 15 August 1973 to 15 August 19731975: 29 July 1975 to 7 August 19751976: 8 June 1976 to 11 July 19761983: 12 July 1983 to 28 July 19831984: 7 July 1984 to 7 July 19841989: 21 July 1989 to 22 July 19891990: 19 July 1990 to 3 August 19901994: 11 July 1994 to 23 July 19941996: 6 June 1996 to 18 August 19961999: 31 July 1999 to 31 July 19992000: 18 June 2000 to 18 June 20002001: 28 July 2001 to 24 August 20012002: 27 July 2002 to 28 July 20022003: 14 July 2003 to 11 August 20032004: 7 June 2004 to 7 August 20042005: 19 June 2005 to 31 August 20052006: 12 June 2006 to 26 July 20062011: 26 June 2011 to 26 June 20112013: 12 July 2013 to 31 July 20132014: 17 July 2014 to 17 July 20142015: 30 June 2015 to 30 June 201519611973198319901999200220052013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hampstead meeting 30 C (86 F).
First to last qualifying date each year at Hampstead
YearFirst dateLast date
19611961-06-301961-08-28
19691969-07-151969-07-15
19701970-07-061970-07-06
19731973-08-151973-08-15
19751975-07-291975-08-07
19761976-06-081976-07-11
19831983-07-121983-07-28
19841984-07-071984-07-07
19891989-07-211989-07-22
19901990-07-191990-08-03
19941994-07-111994-07-23
19961996-06-061996-08-18
19991999-07-311999-07-31
20002000-06-182000-06-18
20012001-07-282001-08-24
20022002-07-272002-07-28
20032003-07-142003-08-11
20042004-06-072004-08-07
20052005-06-192005-08-31
20062006-06-122006-07-26
20112011-06-262011-06-26
20132013-07-122013-07-31
20142014-07-172014-07-17
20152015-06-302015-06-30

Every Fixed Threshold

Fixed thresholds at Hampstead
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days241419761
35 C (95 F): Days1320033
90 F (32.2 C): Days7619761
0 C (32 F): Ice days (max302619634
0 C (32 F): Frost days (min5381196319
-10 C (14 F): Days with min2319632
20 C (68 F): Tropical nights (min4119891
10 mm (0.39 in): Days with 10 mm or more rain5335200213
25 mm (0.98 in): Days with 25 mm or more rain48419712
50 mm (1.97 in): Days with 50 mm or more rain5119771

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Hampstead 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).