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

Upper Swan Research Station Threshold Days by Year

3 fixed thresholds counted per year at Upper Swan Research Station (ASN00009067): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Upper Swan Research Station Thresholds

  • Upper Swan Research Station: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1963 with 34.
  • Upper Swan Research Station: days with 25 mm (0.98 in) or more of precipitation in 18 years, most in 1964 with 8.
  • 3 fixed thresholds have at least one qualifying day at Upper Swan Research Station.
18 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Upper Swan Research Station Days per year at Upper Swan Research Station with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1963. 0102030401958: 221959: 151960: 251961: 231962: 271963: 341964: 301965: 241966: 151967: 221969: 101974: 261976: 171977: 111980: 91982: 201984: 241991: 30195819601962196419661969197619801984
Days per year at Upper Swan Research Station with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1963.
Days with 10 mm (0.39 in) or more of precipitation per year at Upper Swan Research Station
YearDaysDecade average
19582218.5
19591518.5
19602523.3
19612323.3
19622723.3
19633423.3
19643023.3
19652423.3
19661523.3
19672223.3
19691023.3
19742618
19761718
19771118
1980917.7
19822017.7
19842417.7
19913030
First to last qualifying date each year at Upper Swan Research Station For each year, a bar from the first to the last day at Upper Swan Research Station meeting 10 mm (0.39 in). 1958: 8 May 1958 to 21 December 19581959: 6 February 1959 to 2 November 19591960: 1 January 1960 to 16 August 19601961: 26 January 1961 to 15 December 19611962: 13 May 1962 to 9 November 19621963: 16 March 1963 to 31 October 19631964: 1 April 1964 to 12 October 19641965: 1 May 1965 to 1 December 19651966: 20 April 1966 to 27 December 19661967: 11 April 1967 to 7 October 19671969: 8 April 1969 to 3 November 19691974: 4 February 1974 to 19 November 19741976: 7 January 1976 to 11 November 19761977: 17 May 1977 to 7 September 19771980: 22 April 1980 to 22 October 19801982: 21 January 1982 to 15 September 19821984: 4 March 1984 to 28 December 19841991: 10 April 1991 to 30 December 1991195819611964196719761982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Upper Swan Research Station meeting 10 mm (0.39 in).
First to last qualifying date each year at Upper Swan Research Station
YearFirst dateLast date
19581958-05-081958-12-21
19591959-02-061959-11-02
19601960-01-011960-08-16
19611961-01-261961-12-15
19621962-05-131962-11-09
19631963-03-161963-10-31
19641964-04-011964-10-12
19651965-05-011965-12-01
19661966-04-201966-12-27
19671967-04-111967-10-07
19691969-04-081969-11-03
19741974-02-041974-11-19
19761976-01-071976-11-11
19771977-05-171977-09-07
19801980-04-221980-10-22
19821982-01-211982-09-15
19841984-03-041984-12-28
19911991-04-101991-12-30

Every Fixed Threshold

Fixed thresholds at Upper Swan Research Station
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1834196330
25 mm (0.98 in): Days with 25 mm or more rain18819649
50 mm (1.97 in): Days with 50 mm or more rain20n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Upper Swan Research Station 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).