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Built 2026-10-19 (19 October 2026)

McArthur River Mine Threshold Days by Year (ASN00014704)

14 fixed thresholds counted per year at McArthur River Mine (ASN00014704): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for McArthur River Mine Thresholds

  • McArthur River Mine: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 2000 with 47.
  • McArthur River Mine: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 2011 with 24.
  • McArthur River Mine: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 2003 with 7.
  • McArthur River Mine: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2017 with 346.
  • 14 fixed thresholds have at least one qualifying day at McArthur River Mine.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at McArthur River Mine Days per year at McArthur River Mine with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 346 in 2017. 01002003004001969: 3151970: 3161977: 2791978: 3221979: 3201980: 3141981: 3202003: 3112004: 2992007: 2982008: 3112009: 3312010: 3052011: 3082012: 3052013: 3362014: 3202015: 3392016: 3402017: 3462018: 3372019: 3242020: 3332021: 3352022: 3292023: 3382024: 3112025: 3242026: 2521969197819812007201020132016201920222025
Days per year at McArthur River Mine with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 346 in 2017.
Days at or above 30 C (86 F) per year at McArthur River Mine
YearDaysDecade average
1969315315
1970316309.3
1977279309.3
1978322309.3
1979320309.3
1980314317
1981320317
2003311310
2004299310
2007298310
2008311310
2009331310
2010305326
2011308326
2012305326
2013336326
2014320326
2015339326
2016340326
2017346326
2018337326
2019324326
2020333317.4
2021335317.4
2022329317.4
2023338317.4
2024311317.4
2025324317.4
2026252317.4
First to last qualifying date each year at McArthur River Mine For each year, a bar from the first to the last day at McArthur River Mine meeting 30 C (86 F). 1969: 1 January 1969 to 31 December 19691970: 1 January 1970 to 31 December 19701977: 1 January 1977 to 31 December 19771978: 1 January 1978 to 31 December 19781979: 1 January 1979 to 31 December 19791980: 1 January 1980 to 31 December 19801981: 1 January 1981 to 31 December 19812003: 2 January 2003 to 31 December 20032004: 1 January 2004 to 26 December 20042007: 1 January 2007 to 30 December 20072008: 2 January 2008 to 30 December 20082009: 1 January 2009 to 31 December 20092010: 1 January 2010 to 31 December 20102011: 1 January 2011 to 31 December 20112012: 1 January 2012 to 31 December 20122013: 1 January 2013 to 31 December 20132014: 1 January 2014 to 31 December 20142015: 1 January 2015 to 31 December 20152016: 1 January 2016 to 31 December 20162017: 1 January 2017 to 31 December 20172018: 1 January 2018 to 31 December 20182019: 1 January 2019 to 31 December 20192020: 1 January 2020 to 31 December 20202021: 1 January 2021 to 31 December 20212022: 1 January 2022 to 31 December 20222023: 1 January 2023 to 31 December 20232024: 1 January 2024 to 31 December 20242025: 1 January 2025 to 31 December 20252026: 1 January 2026 to 8 October 202619691979200420102014201820222026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at McArthur River Mine meeting 30 C (86 F).
First to last qualifying date each year at McArthur River Mine
YearFirst dateLast date
19691969-01-011969-12-31
19701970-01-011970-12-31
19771977-01-011977-12-31
19781978-01-011978-12-31
19791979-01-011979-12-31
19801980-01-011980-12-31
19811981-01-011981-12-31
20032003-01-022003-12-31
20042004-01-012004-12-26
20072007-01-012007-12-30
20082008-01-022008-12-30
20092009-01-012009-12-31
20102010-01-012010-12-31
20112011-01-012011-12-31
20122012-01-012012-12-31
20132013-01-012013-12-31
20142014-01-012014-12-31
20152015-01-012015-12-31
20162016-01-012016-12-31
20172017-01-012017-12-31
20182018-01-012018-12-31
20192019-01-012019-12-31
20202020-01-012020-12-31
20212021-01-012021-12-31
20222022-01-012022-12-31
20232023-01-012023-12-31
20242024-01-012024-12-31
20252025-01-012025-12-31
20262026-01-012026-10-08

Every Fixed Threshold

Fixed thresholds at McArthur River Mine
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days293462017252
35 C (95 F): Days29231201681
40 C (104 F): Days298220192
45 C (113 F): Days1120071
90 F (32.2 C): Days293112016195
100 F (37.8 C): Days29140201913
110 F (43.3 C): Days10720191
20 C (68 F): Tropical nights (min292602016128
25 C (77 F): Days with min29120201646
10 mm (0.39 in): Days with 10 mm or more rain4847200020
25 mm (0.98 in): Days with 25 mm or more rain482420119
50 mm (1.97 in): Days with 50 mm or more rain44720035
100 mm (3.94 in): Days with 100 mm or more rain16420031
200 mm (7.87 in): Days with 200 mm or more rain1120131

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for McArthur River Mine 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 (2026-10-17).