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Built 2026-10-18 (18 October 2026)

Tressillian Threshold Days by Year

4 fixed thresholds counted per year at Tressillian (ASN00010127): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tressillian Thresholds

  • Tressillian: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1943 with 19.
  • Tressillian: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1922 with 4.
  • Tressillian: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 1916 with 1.
  • Tressillian: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1917 with 1.
  • 4 fixed thresholds have at least one qualifying day at Tressillian.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Tressillian Days per year at Tressillian with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1943. 051015201910: 101911: 41912: 71914: 31915: 111916: 71917: 151918: 141919: 41920: 61921: 61922: 81923: 91924: 91925: 81926: 101927: 101928: 51929: 131930: 101931: 71932: 111933: 81934: 91935: 101936: 61937: 61938: 71939: 171940: 31941: 81942: 71943: 191944: 71946: 131947: 101948: 61949: 91950: 71951: 111952: 10191019161921192619311936194119471952
Days per year at Tressillian with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1943.
Days with 10 mm (0.39 in) or more of precipitation per year at Tressillian
YearDaysDecade average
1910108.3
191148.3
191278.3
191438.3
1915118.3
191678.3
1917158.3
1918148.3
191948.3
192068.4
192168.4
192288.4
192398.4
192498.4
192588.4
1926108.4
1927108.4
192858.4
1929138.4
1930109.1
193179.1
1932119.1
193389.1
193499.1
1935109.1
193669.1
193769.1
193879.1
1939179.1
194039.1
194189.1
194279.1
1943199.1
194479.1
1946139.1
1947109.1
194869.1
194999.1
195079.3
1951119.3
1952109.3
First to last qualifying date each year at Tressillian For each year, a bar from the first to the last day at Tressillian meeting 10 mm (0.39 in). 1910: 9 February 1910 to 3 September 19101911: 23 May 1911 to 15 July 19111912: 18 January 1912 to 30 December 19121914: 18 January 1914 to 12 October 19141915: 21 February 1915 to 29 August 19151916: 21 January 1916 to 5 October 19161917: 16 March 1917 to 1 October 19171918: 4 February 1918 to 29 October 19181919: 17 April 1919 to 1 October 19191920: 13 March 1920 to 12 September 19201921: 22 March 1921 to 29 October 19211922: 28 February 1922 to 16 December 19221923: 23 April 1923 to 16 December 19231924: 28 March 1924 to 27 October 19241925: 24 January 1925 to 10 September 19251926: 10 March 1926 to 22 October 19261927: 7 March 1927 to 31 October 19271928: 9 July 1928 to 5 August 19281929: 15 February 1929 to 5 November 19291930: 9 March 1930 to 18 August 19301931: 7 April 1931 to 25 August 19311932: 6 April 1932 to 21 October 19321933: 11 May 1933 to 3 October 19331934: 1 January 1934 to 4 November 19341935: 6 January 1935 to 22 October 19351936: 22 May 1936 to 18 December 19361937: 19 April 1937 to 1 November 19371938: 15 March 1938 to 28 October 19381939: 24 January 1939 to 11 November 19391940: 26 June 1940 to 3 December 19401941: 12 April 1941 to 13 December 19411942: 15 March 1942 to 14 August 19421943: 31 January 1943 to 16 August 19431944: 4 April 1944 to 11 August 19441946: 20 April 1946 to 12 August 19461947: 27 April 1947 to 25 October 19471948: 30 April 1948 to 28 September 19481949: 4 June 1949 to 6 November 19491950: 10 May 1950 to 10 October 19501951: 16 January 1951 to 1 December 19511952: 21 January 1952 to 18 December 19521910191719231929193519411948JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tressillian meeting 10 mm (0.39 in).
First to last qualifying date each year at Tressillian
YearFirst dateLast date
19101910-02-091910-09-03
19111911-05-231911-07-15
19121912-01-181912-12-30
19141914-01-181914-10-12
19151915-02-211915-08-29
19161916-01-211916-10-05
19171917-03-161917-10-01
19181918-02-041918-10-29
19191919-04-171919-10-01
19201920-03-131920-09-12
19211921-03-221921-10-29
19221922-02-281922-12-16
19231923-04-231923-12-16
19241924-03-281924-10-27
19251925-01-241925-09-10
19261926-03-101926-10-22
19271927-03-071927-10-31
19281928-07-091928-08-05
19291929-02-151929-11-05
19301930-03-091930-08-18
19311931-04-071931-08-25
19321932-04-061932-10-21
19331933-05-111933-10-03
19341934-01-011934-11-04
19351935-01-061935-10-22
19361936-05-221936-12-18
19371937-04-191937-11-01
19381938-03-151938-10-28
19391939-01-241939-11-11
19401940-06-261940-12-03
19411941-04-121941-12-13
19421942-03-151942-08-14
19431943-01-311943-08-16
19441944-04-041944-08-11
19461946-04-201946-08-12
19471947-04-271947-10-25
19481948-04-301948-09-28
19491949-06-041949-11-06
19501950-05-101950-10-10
19511951-01-161951-12-01
19521952-01-211952-12-18

Every Fixed Threshold

Fixed thresholds at Tressillian
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4119194310
25 mm (0.98 in): Days with 25 mm or more rain33419221
50 mm (1.97 in): Days with 50 mm or more rain4119161
100 mm (3.94 in): Days with 100 mm or more rain1119171

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

  • Data for Tressillian 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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