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

Whyalla Threshold Days by Year

5 fixed thresholds counted per year at Whyalla (ASN00041347): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Whyalla Thresholds

  • Whyalla: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1983 with 35.
  • Whyalla: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1983 with 14.
  • Whyalla: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1975 with 3.
  • Whyalla: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1975 with 1.
  • 5 fixed thresholds have at least one qualifying day at Whyalla.
23 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Whyalla Days per year at Whyalla with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1983. 0102030401970: 291971: 171972: 191973: 181974: 181975: 281976: 201977: 201978: 231979: 151980: 121981: 201982: 171983: 351984: 241985: 161986: 211989: 202002: 92003: 122006: 92009: 142010: 2419701973197619791982198520022009
Days per year at Whyalla with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1983.
Days with 10 mm (0.39 in) or more of precipitation per year at Whyalla
YearDaysDecade average
19702920.7
19711720.7
19721920.7
19731820.7
19741820.7
19752820.7
19762020.7
19772020.7
19782320.7
19791520.7
19801220.6
19812020.6
19821720.6
19833520.6
19842420.6
19851620.6
19862120.6
19892020.6
2002911
20031211
2006911
20091411
20102424
First to last qualifying date each year at Whyalla For each year, a bar from the first to the last day at Whyalla meeting 10 mm (0.39 in). 1970: 2 January 1970 to 30 December 19701971: 13 January 1971 to 15 December 19711972: 14 January 1972 to 31 December 19721973: 10 January 1973 to 21 December 19731974: 8 January 1974 to 10 December 19741975: 4 January 1975 to 31 December 19751976: 13 January 1976 to 24 December 19761977: 12 January 1977 to 22 December 19771978: 28 January 1978 to 5 December 19781979: 17 January 1979 to 12 November 19791980: 28 January 1980 to 29 December 19801981: 6 February 1981 to 24 December 19811982: 15 January 1982 to 30 December 19821983: 3 January 1983 to 4 December 19831984: 14 January 1984 to 12 December 19841985: 26 January 1985 to 9 December 19851986: 5 January 1986 to 30 December 19861989: 19 January 1989 to 23 December 19892002: 24 January 2002 to 15 November 20022003: 21 February 2003 to 13 December 20032006: 4 January 2006 to 3 November 20062009: 1 January 2009 to 29 December 20092010: 14 January 2010 to 27 December 201019701973197619791982198520022009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Whyalla meeting 10 mm (0.39 in).
First to last qualifying date each year at Whyalla
YearFirst dateLast date
19701970-01-021970-12-30
19711971-01-131971-12-15
19721972-01-141972-12-31
19731973-01-101973-12-21
19741974-01-081974-12-10
19751975-01-041975-12-31
19761976-01-131976-12-24
19771977-01-121977-12-22
19781978-01-281978-12-05
19791979-01-171979-11-12
19801980-01-281980-12-29
19811981-02-061981-12-24
19821982-01-151982-12-30
19831983-01-031983-12-04
19841984-01-141984-12-12
19851985-01-261985-12-09
19861986-01-051986-12-30
19891989-01-191989-12-23
20022002-01-242002-11-15
20032003-02-212003-12-13
20062006-01-042006-11-03
20092009-01-012009-12-29
20102010-01-142010-12-27

Every Fixed Threshold

Fixed thresholds at Whyalla
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2335198324
25 mm (0.98 in): Days with 25 mm or more rain231419836
50 mm (1.97 in): Days with 50 mm or more rain16319751
100 mm (3.94 in): Days with 100 mm or more rain2119751
200 mm (7.87 in): Days with 200 mm or more rain1119761

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.

Download the Data

  • Data for Whyalla 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).