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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Bicton Threshold Days by Year

4 fixed thresholds counted per year at Bicton (ASN00044005): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bicton Thresholds

  • Bicton: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1924 with 26.
  • Bicton: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1924 with 14.
  • Bicton: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 1917 with 3.
  • Bicton: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1917 with 1.
  • 4 fixed thresholds have at least one qualifying day at Bicton.
33 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bicton Days per year at Bicton with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1924. 01020301916: 211917: 191918: 91919: 121920: 181923: 121924: 261925: 131926: 101927: 91928: 171929: 81930: 141931: 231932: 91933: 171934: 161935: 71936: 141937: 151938: 101939: 181940: 81941: 191942: 141943: 151944: 121945: 91946: 91947: 251948: 141949: 191953: 13191619201926193019341938194219461953
Days per year at Bicton with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1924.
Days with 10 mm (0.39 in) or more of precipitation per year at Bicton
YearDaysDecade average
19162115.3
19171915.3
1918915.3
19191215.3
19201814.1
19231214.1
19242614.1
19251314.1
19261014.1
1927914.1
19281714.1
1929814.1
19301414.3
19312314.3
1932914.3
19331714.3
19341614.3
1935714.3
19361414.3
19371514.3
19381014.3
19391814.3
1940814.4
19411914.4
19421414.4
19431514.4
19441214.4
1945914.4
1946914.4
19472514.4
19481414.4
19491914.4
19531313
First to last qualifying date each year at Bicton For each year, a bar from the first to the last day at Bicton meeting 10 mm (0.39 in). 1916: 22 January 1916 to 30 December 19161917: 15 January 1917 to 20 November 19171918: 23 January 1918 to 30 December 19181919: 3 February 1919 to 6 December 19191920: 25 January 1920 to 9 December 19201923: 6 January 1923 to 25 December 19231924: 6 January 1924 to 13 December 19241925: 11 January 1925 to 30 December 19251926: 3 January 1926 to 16 December 19261927: 28 February 1927 to 23 December 19271928: 3 February 1928 to 27 December 19281929: 10 January 1929 to 29 December 19291930: 23 January 1930 to 11 October 19301931: 9 January 1931 to 8 December 19311932: 4 January 1932 to 23 November 19321933: 28 January 1933 to 14 December 19331934: 29 January 1934 to 26 December 19341935: 30 June 1935 to 4 December 19351936: 6 January 1936 to 24 December 19361937: 12 January 1937 to 29 December 19371938: 11 January 1938 to 6 November 19381939: 19 January 1939 to 4 November 19391940: 7 January 1940 to 21 September 19401941: 4 January 1941 to 2 December 19411942: 11 February 1942 to 11 December 19421943: 1 January 1943 to 19 December 19431944: 7 February 1944 to 24 November 19441945: 6 January 1945 to 21 December 19451946: 19 January 1946 to 29 December 19461947: 11 February 1947 to 30 December 19471948: 2 January 1948 to 30 December 19481949: 6 February 1949 to 9 November 19491953: 5 January 1953 to 29 October 19531916192319281933193819431948JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bicton meeting 10 mm (0.39 in).
First to last qualifying date each year at Bicton
YearFirst dateLast date
19161916-01-221916-12-30
19171917-01-151917-11-20
19181918-01-231918-12-30
19191919-02-031919-12-06
19201920-01-251920-12-09
19231923-01-061923-12-25
19241924-01-061924-12-13
19251925-01-111925-12-30
19261926-01-031926-12-16
19271927-02-281927-12-23
19281928-02-031928-12-27
19291929-01-101929-12-29
19301930-01-231930-10-11
19311931-01-091931-12-08
19321932-01-041932-11-23
19331933-01-281933-12-14
19341934-01-291934-12-26
19351935-06-301935-12-04
19361936-01-061936-12-24
19371937-01-121937-12-29
19381938-01-111938-11-06
19391939-01-191939-11-04
19401940-01-071940-09-21
19411941-01-041941-12-02
19421942-02-111942-12-11
19431943-01-011943-12-19
19441944-02-071944-11-24
19451945-01-061945-12-21
19461946-01-191946-12-29
19471947-02-111947-12-30
19481948-01-021948-12-30
19491949-02-061949-11-09
19531953-01-051953-10-29

Every Fixed Threshold

Fixed thresholds at Bicton
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3326192413
25 mm (0.98 in): Days with 25 mm or more rain331419244
50 mm (1.97 in): Days with 50 mm or more rain17319171
100 mm (3.94 in): Days with 100 mm or more rain4119171

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

  • Data for Bicton 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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