Thevenard Island Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
33.2 33.9 34.1 32.3 28.7 25.4 25.0 26.3 27.8 29.8 30.8 32.2 29.9
Mean Min (°C)
24.8 26.2 26.3 24.5 21.2 18.5 17.0 16.8 18.0 19.8 21.4 23.2 21.7
Mean Rain (mm)
27.3 61.1 30.6 18.8 49.3 38.0 14.5 4.1 1.4 1.0 1.0 7.5 250.8
Median Rain (mm)
0.1 42.6 8.3 6.0 2.2 14.4 4.3 2.1 0.8 0.0 0.0 0.1 194.9
Mean Rain Days
3.1 3.5 2.8 2.4 4.3 5.9 4.5 4.7 2.5 1.1 0.7 1.3 36.2

Thevenard Island Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
44.1 44.0 42.2 40.2 35.7 30.5 31.0 34.5 39.1 41.4 41.0 43.7 44.1
Low Max (°C)
27.1 27.0 24.7 23.2 19.8 18.0 19.0 19.0 21.0 3.2 24.6 27.0 3.2
High Min (°C)
30.9 30.7 31.0 30.1 26.5 24.7 24.0 22.5 24.0 26.9 28.2 30.1 31.0
Low Min (°C)
6.0 6.0 20.0 16.8 10.0 11.8 6.0 6.0 -9.0 -1.2 6.0 6.0 -9.0
High Rain (mm)
242.8 329.0 143.6 73.8 120.2 60.0 68.8 15.4 8.2 9.0 14.4 95.0 329.0

Thevenard Island Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
35.5 36.1 36.3 35.6 30.1 27.0 27.0 27.8 29.6 33.9 32.5 35.5 30.9
Low Mn. Max (°C)
31.2 32.0 32.5 29.6 26.2 23.6 23.0 24.2 25.8 27.8 28.1 30.3 28.4
High Mn. Min (°C)
27.5 27.7 27.8 25.9 22.6 21.1 19.7 18.8 20.6 22.8 23.9 26.0 22.7
Low Mn. Min (°C)
7.3 24.4 24.7 23.2 19.4 17.0 6.0 6.0 6.0 6.4 6.6 6.5 20.3
High Rain (mm)
266.4 456.0 263.6 135.8 299.2 117.0 93.6 16.4 9.6 16.2 14.4 104.0 681.0
Low Rain (mm)
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 64.8

Thevenard Island Annual Temperatures & Rainfall

Thevenard Island annual climate

Thevenard Island Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.4 0.8 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.3 2.2
≥ 35°C
7.1 8.2 9.3 4.1 0.2 0.0 0.0 0.0 0.2 1.4 2.1 4.7 36.3
≥ 30°C
28.7 26.2 29.2 25.5 9.4 0.3 0.1 1.6 4.5 13.3 16.9 25.4 171.9
≤ 2°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.1
≤ 0°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1

Thevenard Island 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
35.5 36.2 36.4 34.5 31.0 27.6 26.3 27.8 29.5 32.0 33.0 34.2 34.0
Low Max
30.5 31.0 31.7 29.5 26.4 23.1 23.0 24.0 25.0 27.0 28.0 29.0 25.0
High Min
27.0 28.0 27.5 26.1 23.4 21.0 19.2 19.0 20.0 22.2 23.8 25.0 25.9
Low Min
23.0 24.2 24.2 22.4 19.0 16.0 14.4 14.5 16.0 17.0 18.9 21.0 17.0

Thevenard Island Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
26 25 24 26 26 26 29 29 31 28 24 24 28.0
Earliest Entry
1991 1991 1992 1993 1993 1992 1990 1990 1990 1990 1990 1990 1990
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Maxima
26 25 23 26 24 24 27 27 28 26 23 23 25.0
Earliest Entry
1991 1991 1992 1992 1992 1992 1990 1990 1990 1990 1990 1990 1990
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Rainfall
24 25 24 25 25 25 25 25 26 25 22 19 26.0
Earliest Entry
1996 1995 1995 1995 1995 1995 1994 1994 1995 1995 1995 1994 1994
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024

Station Details

THEVENARD ISLAND
Pilbara, Western Australia
21.4609°S 115.0188°E 5m AMSL
Commenced 1989

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Decent rain en route to bone-dry southwest WA

14:29 AEST Welcome rain is coming to the parched southwest WA this week, possibly including Perth and Bunbury which are both having their driest 7 months on record.  Many locations in the southwest will see the driest April on record, with much of this rainfall likely to contribute to May’s totals, as a cold front approaches the state on later in the week.  Rainfall and thunderstorms are forecast in the Gascoyne region on Monday afternoon, before shifting to the Central West, Lower West and Central Wheatbelt regions on Tuesday.

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