Built 2026-10-19 (19 October 2026)

Swan River 2 Threshold Days by Year (CA005042805)

5 fixed thresholds counted per year at Swan River 2 (CA005042805): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Swan River 2 Thresholds

  • Swan River 2: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 1979 with 10.
  • Swan River 2: days with 10 mm (0.39 in) or more of precipitation in 15 years, most in 1977 with 22.
  • Swan River 2: days with 25 mm (0.98 in) or more of precipitation in 14 years, most in 1983 with 6.
  • Swan River 2: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1982 with 2.
  • 5 fixed thresholds have at least one qualifying day at Swan River 2.
15 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Swan River 2 Days per year at Swan River 2 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1977. 01020301968: 161969: 131970: 141971: 81972: 111973: 201974: 161975: 201976: 121977: 221978: 161979: 151980: 101982: 111983: 2219681970197219741976197819801983
Days per year at Swan River 2 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1977.
Days with 10 mm (0.39 in) or more of precipitation per year at Swan River 2
YearDaysDecade average
19681614.5
19691314.5
19701415.4
1971815.4
19721115.4
19732015.4
19741615.4
19752015.4
19761215.4
19772215.4
19781615.4
19791515.4
19801014.3
19821114.3
19832214.3
First to last qualifying date each year at Swan River 2 For each year, a bar from the first to the last day at Swan River 2 meeting 10 mm (0.39 in). 1968: 27 January 1968 to 18 August 19681969: 26 January 1969 to 21 September 19691970: 2 March 1970 to 4 December 19701971: 16 April 1971 to 4 November 19711972: 17 January 1972 to 27 September 19721973: 27 March 1973 to 21 November 19731974: 15 January 1974 to 28 September 19741975: 7 April 1975 to 26 October 19751976: 25 February 1976 to 24 August 19761977: 18 March 1977 to 18 December 19771978: 6 January 1978 to 21 December 19781979: 13 February 1979 to 10 December 19791980: 21 February 1980 to 6 November 19801982: 30 May 1982 to 2 December 19821983: 5 March 1983 to 9 October 198319681970197219741976197819801983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Swan River 2 meeting 10 mm (0.39 in).
First to last qualifying date each year at Swan River 2
YearFirst dateLast date
19681968-01-271968-08-18
19691969-01-261969-09-21
19701970-03-021970-12-04
19711971-04-161971-11-04
19721972-01-171972-09-27
19731973-03-271973-11-21
19741974-01-151974-09-28
19751975-04-071975-10-26
19761976-02-251976-08-24
19771977-03-181977-12-18
19781978-01-061978-12-21
19791979-02-131979-12-10
19801980-02-211980-11-06
19821982-05-301982-12-02
19831983-03-051983-10-09

Every Fixed Threshold

Fixed thresholds at Swan River 2
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1522197722
25 mm (0.98 in): Days with 25 mm or more rain14619836
50 mm (1.97 in): Days with 50 mm or more rain8219821
10 cm (3.9 in): Days with 10 cm or more snowfall161019794
25 cm (9.8 in): Days with 25 cm or more snowfall2119701

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Swan River 2 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).