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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

National Park Threshold Days by Year

3 fixed thresholds counted per year at National Park (ASN00095013): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for National Park Thresholds

  • National Park: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1924 with 42.
  • National Park: days with 25 mm (0.98 in) or more of precipitation in 15 years, most in 1924 with 8.
  • National Park: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1938 with 1.
  • 3 fixed thresholds have at least one qualifying day at National Park.
19 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at National Park Days per year at National Park with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1924. 02040601919: 271922: 231923: 411924: 421925: 241927: 351928: 401935: 251936: 241937: 241938: 241939: 251940: 261941: 281942: 261943: 221944: 271950: 211951: 261919192319251928193619381940194219441951
Days per year at National Park with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1924.
Days with 10 mm (0.39 in) or more of precipitation per year at National Park
YearDaysDecade average
19192727
19222334.2
19234134.2
19244234.2
19252434.2
19273534.2
19284034.2
19352524.4
19362424.4
19372424.4
19382424.4
19392524.4
19402625.8
19412825.8
19422625.8
19432225.8
19442725.8
19502123.5
19512623.5
First to last qualifying date each year at National Park For each year, a bar from the first to the last day at National Park meeting 10 mm (0.39 in). 1919: 21 January 1919 to 12 December 19191922: 21 February 1922 to 31 December 19221923: 7 January 1923 to 6 December 19231924: 7 January 1924 to 28 November 19241925: 14 January 1925 to 25 December 19251927: 27 January 1927 to 26 December 19271928: 1 January 1928 to 16 December 19281935: 5 January 1935 to 21 December 19351936: 4 January 1936 to 20 December 19361937: 2 January 1937 to 26 December 19371938: 5 January 1938 to 28 December 19381939: 17 February 1939 to 24 December 19391940: 24 January 1940 to 13 December 19401941: 24 January 1941 to 30 December 19411942: 14 January 1942 to 29 December 19421943: 16 January 1943 to 4 December 19431944: 3 January 1944 to 13 November 19441950: 3 January 1950 to 9 December 19501951: 8 January 1951 to 31 December 19511919192419281937194019431951JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at National Park meeting 10 mm (0.39 in).
First to last qualifying date each year at National Park
YearFirst dateLast date
19191919-01-211919-12-12
19221922-02-211922-12-31
19231923-01-071923-12-06
19241924-01-071924-11-28
19251925-01-141925-12-25
19271927-01-271927-12-26
19281928-01-011928-12-16
19351935-01-051935-12-21
19361936-01-041936-12-20
19371937-01-021937-12-26
19381938-01-051938-12-28
19391939-02-171939-12-24
19401940-01-241940-12-13
19411941-01-241941-12-30
19421942-01-141942-12-29
19431943-01-161943-12-04
19441944-01-031944-11-13
19501950-01-031950-12-09
19511951-01-081951-12-31

Every Fixed Threshold

Fixed thresholds at National Park
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1942192426
25 mm (0.98 in): Days with 25 mm or more rain15819244
50 mm (1.97 in): Days with 50 mm or more rain2119381

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.

Download the Data

  • Data for National Park 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).