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

Prospect Threshold Days by Year (ASN00010114)

3 fixed thresholds counted per year at Prospect (ASN00010114): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Prospect Thresholds

  • Prospect: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1917 with 18.
  • Prospect: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 1917 with 8.
  • Prospect: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1916 with 1.
  • 3 fixed thresholds have at least one qualifying day at Prospect.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Prospect Days per year at Prospect with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1917. 051015201913: 91914: 11915: 71916: 81917: 181918: 131920: 41921: 111922: 41923: 91924: 61925: 141926: 91927: 111928: 31929: 111930: 121931: 61932: 91933: 91934: 91935: 31936: 31937: 51938: 111939: 81940: 41941: 31942: 61943: 121944: 819131917192219261930193419381942
Days per year at Prospect with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1917.
Days with 10 mm (0.39 in) or more of precipitation per year at Prospect
YearDaysDecade average
191399.3
191419.3
191579.3
191689.3
1917189.3
1918139.3
192048.2
1921118.2
192248.2
192398.2
192468.2
1925148.2
192698.2
1927118.2
192838.2
1929118.2
1930127.5
193167.5
193297.5
193397.5
193497.5
193537.5
193637.5
193757.5
1938117.5
193987.5
194046.6
194136.6
194266.6
1943126.6
194486.6
First to last qualifying date each year at Prospect For each year, a bar from the first to the last day at Prospect meeting 10 mm (0.39 in). 1913: 15 February 1913 to 20 December 19131914: 29 June 1914 to 29 June 19141915: 24 February 1915 to 1 August 19151916: 21 January 1916 to 7 November 19161917: 2 March 1917 to 10 October 19171918: 2 January 1918 to 17 October 19181920: 15 March 1920 to 12 September 19201921: 22 February 1921 to 13 December 19211922: 1 March 1922 to 4 July 19221923: 24 March 1923 to 16 December 19231924: 7 May 1924 to 18 October 19241925: 14 January 1925 to 30 December 19251926: 3 February 1926 to 22 September 19261927: 13 March 1927 to 11 September 19271928: 28 April 1928 to 17 July 19281929: 15 February 1929 to 5 November 19291930: 7 March 1930 to 19 August 19301931: 4 May 1931 to 13 October 19311932: 29 January 1932 to 9 October 19321933: 24 May 1933 to 29 November 19331934: 1 April 1934 to 4 November 19341935: 4 April 1935 to 7 August 19351936: 3 June 1936 to 24 December 19361937: 13 January 1937 to 30 August 19371938: 16 January 1938 to 24 November 19381939: 26 January 1939 to 17 November 19391940: 26 June 1940 to 3 December 19401941: 26 February 1941 to 16 December 19411942: 2 January 1942 to 1 December 19421943: 12 February 1943 to 8 December 19431944: 15 March 1944 to 28 August 194419131917192219261930193419381942JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Prospect meeting 10 mm (0.39 in).
First to last qualifying date each year at Prospect
YearFirst dateLast date
19131913-02-151913-12-20
19141914-06-291914-06-29
19151915-02-241915-08-01
19161916-01-211916-11-07
19171917-03-021917-10-10
19181918-01-021918-10-17
19201920-03-151920-09-12
19211921-02-221921-12-13
19221922-03-011922-07-04
19231923-03-241923-12-16
19241924-05-071924-10-18
19251925-01-141925-12-30
19261926-02-031926-09-22
19271927-03-131927-09-11
19281928-04-281928-07-17
19291929-02-151929-11-05
19301930-03-071930-08-19
19311931-05-041931-10-13
19321932-01-291932-10-09
19331933-05-241933-11-29
19341934-04-011934-11-04
19351935-04-041935-08-07
19361936-06-031936-12-24
19371937-01-131937-08-30
19381938-01-161938-11-24
19391939-01-261939-11-17
19401940-06-261940-12-03
19411941-02-261941-12-16
19421942-01-021942-12-01
19431943-02-121943-12-08
19441944-03-151944-08-28

Every Fixed Threshold

Fixed thresholds at Prospect
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain311819178
25 mm (0.98 in): Days with 25 mm or more rain22819171
50 mm (1.97 in): Days with 50 mm or more rain3119161

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

  • Data for Prospect 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).