Daily records
Page built 2026-10-19
Data as of 2026-10-17
Search
Built 2026-10-19 (19 October 2026)

Rothamsted Threshold Days by Year (UKE00105900)

11 fixed thresholds counted per year at Rothamsted (UKE00105900): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rothamsted Thresholds

  • Rothamsted: days with 10 mm (0.39 in) or more of precipitation in 111 years, most in 2012 with 29.
  • Rothamsted: nights with a minimum temperature at or below 0 C (32 F) in 110 years, most in 1917 with 110.
  • Rothamsted: days with 25 mm (0.98 in) or more of precipitation in 83 years, most in 2024 with 7.
  • Rothamsted: days with a maximum temperature at or below 0 C (32 F) in 79 years, most in 1947 with 28.
  • 11 fixed thresholds have at least one qualifying day at Rothamsted.
49 years with a qualifying day
Days at or above 30 C (86 F) per year at Rothamsted Days per year at Rothamsted with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 10 in 1976. 051015201917: 11918: 11921: 31923: 41930: 31932: 11933: 21941: 21943: 11947: 51948: 31949: 11952: 11953: 11957: 21959: 21961: 21964: 11968: 11969: 11970: 11973: 11975: 31976: 101983: 21989: 21990: 51994: 21995: 71996: 11997: 11999: 12002: 12003: 52005: 22006: 52013: 22014: 12015: 12016: 32017: 32018: 52019: 72020: 62022: 82023: 22024: 12025: 52026: 191917193219481959197019891997200620172023
Days per year at Rothamsted with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 10 in 1976.
Days at or above 30 C (86 F) per year at Rothamsted
YearDaysDecade average
191711
191811
192133.5
192343.5
193032
193212
193322
194122.4
194312.4
194752.4
194832.4
194912.4
195211.5
195311.5
195721.5
195921.5
196121.3
196411.3
196811.3
196911.3
197013.8
197313.8
197533.8
1976103.8
198322
198922
199052.8
199422.8
199572.8
199612.8
199712.8
199912.8
200213.3
200353.3
200523.3
200653.3
201323.1
201413.1
201513.1
201633.1
201733.1
201853.1
201973.1
202066.8
202286.8
202326.8
202416.8
202556.8
2026196.8
First to last qualifying date each year at Rothamsted For each year, a bar from the first to the last day at Rothamsted meeting 30 C (86 F). 1917: 16 June 1917 to 16 June 19171918: 21 August 1918 to 21 August 19181921: 9 July 1921 to 18 July 19211923: 6 July 1923 to 12 July 19231930: 26 August 1930 to 28 August 19301932: 18 August 1932 to 18 August 19321933: 26 July 1933 to 5 August 19331941: 21 June 1941 to 7 July 19411943: 30 July 1943 to 30 July 19431947: 29 May 1947 to 17 August 19471948: 27 July 1948 to 29 July 19481949: 11 July 1949 to 11 July 19491952: 30 June 1952 to 30 June 19521953: 11 August 1953 to 11 August 19531957: 28 June 1957 to 5 July 19571959: 4 July 1959 to 7 July 19591961: 30 June 1961 to 28 August 19611964: 25 August 1964 to 25 August 19641968: 30 June 1968 to 30 June 19681969: 15 July 1969 to 15 July 19691970: 6 July 1970 to 6 July 19701973: 15 August 1973 to 15 August 19731975: 3 August 1975 to 7 August 19751976: 24 June 1976 to 6 July 19761983: 14 July 1983 to 15 July 19831989: 21 July 1989 to 22 July 19891990: 20 July 1990 to 3 August 19901994: 11 July 1994 to 23 July 19941995: 29 June 1995 to 1 August 19951996: 21 July 1996 to 21 July 19961997: 9 August 1997 to 9 August 19971999: 31 July 1999 to 31 July 19992002: 28 July 2002 to 28 July 20022003: 14 July 2003 to 10 August 20032005: 18 June 2005 to 30 August 20052006: 16 July 2006 to 25 July 20062013: 21 July 2013 to 31 July 20132014: 17 July 2014 to 17 July 20142015: 30 June 2015 to 30 June 20152016: 18 July 2016 to 12 September 20162017: 18 June 2017 to 5 July 20172018: 22 July 2018 to 5 August 20182019: 28 June 2019 to 26 August 20192020: 30 July 2020 to 11 August 20202022: 16 June 2022 to 13 August 20222023: 6 September 2023 to 8 September 20232024: 11 August 2024 to 11 August 20242025: 20 June 2025 to 11 August 20252026: 24 May 2026 to 13 August 20261917194119571973199520062019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rothamsted meeting 30 C (86 F).
First to last qualifying date each year at Rothamsted
YearFirst dateLast date
19171917-06-161917-06-16
19181918-08-211918-08-21
19211921-07-091921-07-18
19231923-07-061923-07-12
19301930-08-261930-08-28
19321932-08-181932-08-18
19331933-07-261933-08-05
19411941-06-211941-07-07
19431943-07-301943-07-30
19471947-05-291947-08-17
19481948-07-271948-07-29
19491949-07-111949-07-11
19521952-06-301952-06-30
19531953-08-111953-08-11
19571957-06-281957-07-05
19591959-07-041959-07-07
19611961-06-301961-08-28
19641964-08-251964-08-25
19681968-06-301968-06-30
19691969-07-151969-07-15
19701970-07-061970-07-06
19731973-08-151973-08-15
19751975-08-031975-08-07
19761976-06-241976-07-06
19831983-07-141983-07-15
19891989-07-211989-07-22
19901990-07-201990-08-03
19941994-07-111994-07-23
19951995-06-291995-08-01
19961996-07-211996-07-21
19971997-08-091997-08-09
19991999-07-311999-07-31
20022002-07-282002-07-28
20032003-07-142003-08-10
20052005-06-182005-08-30
20062006-07-162006-07-25
20132013-07-212013-07-31
20142014-07-172014-07-17
20152015-06-302015-06-30
20162016-07-182016-09-12
20172017-06-182017-07-05
20182018-07-222018-08-05
20192019-06-282019-08-26
20202020-07-302020-08-11
20222022-06-162022-08-13
20232023-09-062023-09-08
20242024-08-112024-08-11
20252025-06-202025-08-11
20262026-05-242026-08-13

Every Fixed Threshold

Fixed thresholds at Rothamsted
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4910197619
35 C (95 F): Days4220221
90 F (32.2 C): Days14520208
100 F (37.8 C): Days1120221
0 C (32 F): Ice days (max792819474
0 C (32 F): Frost days (min110110191724
-10 C (14 F): Days with min32619632
20 C (68 F): Tropical nights (min10n/a1
10 mm (0.39 in): Days with 10 mm or more rain1112920129
25 mm (0.98 in): Days with 25 mm or more rain83720247
50 mm (1.97 in): Days with 50 mm or more rain10219922

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Rothamsted 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).