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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

The Heart Threshold Days by Year (ASN00085080)

4 fixed thresholds counted per year at The Heart (ASN00085080): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for The Heart Thresholds

  • The Heart: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1934 with 24.
  • The Heart: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1930 with 6.
  • The Heart: days with 50 mm (1.97 in) or more of precipitation in 13 years, most in 1936 with 2.
  • The Heart: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1947 with 1.
  • 4 fixed thresholds have at least one qualifying day at The Heart.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at The Heart Days per year at The Heart with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 24 in 1934. 01020301923: 161924: 181925: 171926: 161927: 101928: 211929: 131930: 221931: 181932: 191933: 151934: 241935: 241936: 171937: 151938: 111939: 191940: 101943: 141944: 101946: 201947: 171948: 91949: 211950: 181951: 171952: 191953: 131954: 171955: 201956: 1219231927193119351939194619501954
Days per year at The Heart with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 24 in 1934.
Days with 10 mm (0.39 in) or more of precipitation per year at The Heart
YearDaysDecade average
19231615.9
19241815.9
19251715.9
19261615.9
19271015.9
19282115.9
19291315.9
19302218.4
19311818.4
19321918.4
19331518.4
19342418.4
19352418.4
19361718.4
19371518.4
19381118.4
19391918.4
19401014.4
19431414.4
19441014.4
19462014.4
19471714.4
1948914.4
19492114.4
19501816.6
19511716.6
19521916.6
19531316.6
19541716.6
19552016.6
19561216.6
First to last qualifying date each year at The Heart For each year, a bar from the first to the last day at The Heart meeting 10 mm (0.39 in). 1923: 18 January 1923 to 27 December 19231924: 3 January 1924 to 14 December 19241925: 13 January 1925 to 24 December 19251926: 8 January 1926 to 22 December 19261927: 28 January 1927 to 20 October 19271928: 19 January 1928 to 31 December 19281929: 31 January 1929 to 15 December 19291930: 20 February 1930 to 24 December 19301931: 26 January 1931 to 22 December 19311932: 14 February 1932 to 7 December 19321933: 27 January 1933 to 16 December 19331934: 6 January 1934 to 1 December 19341935: 7 January 1935 to 27 December 19351936: 17 January 1936 to 15 December 19361937: 2 January 1937 to 17 October 19371938: 16 January 1938 to 1 November 19381939: 3 February 1939 to 5 December 19391940: 19 March 1940 to 28 December 19401943: 23 January 1943 to 5 December 19431944: 5 March 1944 to 16 October 19441946: 17 January 1946 to 29 December 19461947: 8 February 1947 to 25 December 19471948: 2 January 1948 to 28 December 19481949: 2 January 1949 to 20 December 19491950: 19 January 1950 to 8 December 19501951: 8 January 1951 to 28 November 19511952: 21 March 1952 to 27 December 19521953: 14 January 1953 to 10 December 19531954: 29 January 1954 to 12 December 19541955: 28 January 1955 to 30 December 19551956: 19 January 1956 to 16 November 195619231927193119351939194619501954JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at The Heart meeting 10 mm (0.39 in).
First to last qualifying date each year at The Heart
YearFirst dateLast date
19231923-01-181923-12-27
19241924-01-031924-12-14
19251925-01-131925-12-24
19261926-01-081926-12-22
19271927-01-281927-10-20
19281928-01-191928-12-31
19291929-01-311929-12-15
19301930-02-201930-12-24
19311931-01-261931-12-22
19321932-02-141932-12-07
19331933-01-271933-12-16
19341934-01-061934-12-01
19351935-01-071935-12-27
19361936-01-171936-12-15
19371937-01-021937-10-17
19381938-01-161938-11-01
19391939-02-031939-12-05
19401940-03-191940-12-28
19431943-01-231943-12-05
19441944-03-051944-10-16
19461946-01-171946-12-29
19471947-02-081947-12-25
19481948-01-021948-12-28
19491949-01-021949-12-20
19501950-01-191950-12-08
19511951-01-081951-11-28
19521952-03-211952-12-27
19531953-01-141953-12-10
19541954-01-291954-12-12
19551955-01-281955-12-30
19561956-01-191956-11-16

Every Fixed Threshold

Fixed thresholds at The Heart
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3124193412
25 mm (0.98 in): Days with 25 mm or more rain30619302
50 mm (1.97 in): Days with 50 mm or more rain13219361
100 mm (3.94 in): Days with 100 mm or more rain1119471

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

  • Data for The Heart 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).