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Tasmania in May 2023

Rainfall

  • Rainfall during May was below average across north-east Tasmania, tending to average to above average in the west.
  • For Tasmania as a whole, rainfall was 17% below average.
  • The wettest day of the month was the 31st when continuous showers fell overnight in the west and far south.

Temperature

Hobart (Ellerslie Road)

  • Total rainfall for Hobart (Ellerslie Road) was 22.2 mm, which is 47% of the long-term average of 47.4 mm.
  • The mean daily maximum temperature for Hobart (Ellerslie Road) was 15.5 °C, which is 1.0 °C above the long-term average of 14.5 °C.
  • The warmest day was 19.5 °C on the 31st, and the coolest day was on the 16th when the temperature reached 11.6 °C.
  • The mean daily minimum temperature for Hobart (Ellerslie Road) was 7.1 °C, which is 0.1 °C above the long-term average of 7.0 °C.
  • The coldest morning was 2.0 °C on the 7th, and the warmest morning was on the 31st when the minimum temperature was 13.1 °C.

Extremes in May 2023
Hottest day 21.5 °C at Orford (Aubin Court) on the 1st
Warmest days on average 16.3 °C at Bicheno (Council Depot)
Coolest days on average 5.0 °C at kunanyi (Mount Wellington Pinnacle)
Coldest day -0.7 °C at kunanyi (Mount Wellington Pinnacle) on the 16th
Coldest night -6.6 °C at Ross (The Boulevards) on the 17th
-6.6 °C at Ross (The Boulevards) on the 18th
Coolest nights on average -0.4 °C at Liawenee
Warmest nights on average 10.4 °C at Hogan Island
Warmest night 14.6 °C at Campania (Kincora) on the 31st
14.6 °C at King Island Airport on the 31st
Warmest on average overall 12.9 °C at Swan Island
Coolest on average overall 2.4 °C at kunanyi (Mount Wellington Pinnacle)
Wettest overall 610.8 mm at Mount Read
Wettest day 75.0 mm at Mount Read on the 31st
Strongest wind gust 135 km/h at Maatsuyker Island Lighthouse on the 30th
135 km/h at kunanyi (Mount Wellington Pinnacle) on the 31st

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record lowest May temperature
New record
(°C)
Old
record
Years of
record
Average for
May
Strahan Aerodrome -0.6 on the 7th -0.4 on the 21st in 2010 32 7.5



Record lowest May mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
May
Ross (The Boulevards) 0.7 1.2 in 2001 29 3.3



Record lowest May mean temperature
New record
(°C)
Old
record
Years of
record
Average for
May
Ross (The Boulevards) 7.1 7.2 in 2001 29 8.8



Summary statistics for May 2023
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
May
2023
Diff
from
average
Highest for
May
2023
Mean for
May
2023
Diff
from
average
Lowest for
May
2023
Total for
May
2023
Average
for
May
Rank of
May
2023
Fraction of
May
average
Northern (district 91)
Cape Grim 14.2 -0.2 16.5 1st 9.9 -0.3 5.8 7th 78.4 102.1 low 77%
Cressy (Brumbys Creek) 14.2   17.5 31st 2.4   -4.2 18th 16.8
Devonport Airport 15.4 0.0 18.8 2nd 6.0 -0.9 -0.7 8th 17.4 72.9 v low 24%
Launceston (Ti Tree Bend) 15.4 -0.4 18.5 9th 3.8 -1.3 -2.4 8th 20.0 63.3 v low 32%
Launceston Airport 14.1 -0.6 17.8 15th 3.5 -0.8 -3.8 18th 21.4 53.7 low 40%
Low Head 15.0 -0.4 17.3 15th 8.8 -0.6 3.0 8th 49.8 62.7 average 79%
Luncheon Hill (Forestry) 12.2 -0.7 16.0 14th 6.2 -0.8 1.1 7th 164.0 166.8 average 98%
Marrawah 14.6 -0.1 17.2 15th 8.1 -1.0 4.0 7th 139.2 111.3 high 125%
Scottsdale (West Minstone Road) 13.9 -0.9 17.1 10th 4.7 -1.2 -1.2 8th 72.2 95.2 average 76%
Sheffield School Farm 13.4 -0.1 16.1 2nd 4.6 -0.8 -1.4 7th 26.8 93.5 v low 29%
Smithton Aerodrome 15.0 -0.4 18.3 1st 5.6 -0.7 -0.1 11th 93.4 91.5 average 102%
Wynyard Airport 15.2 0.0 17.8 15th 4.2 -1.2 -1.7 7th 52.0 95.7 low 54%
East Coast (district 92)
Bicheno (Council Depot) 16.3 -0.3 20.5 31st 7.8 -0.7 2.5 8th 15.8 55.1 low 29%
Fingal (Fleming St) 14.7   18.6 24th 1.3   -4.0 17th
Friendly Beaches 15.5 -0.7 19.5 2nd 7.0 -1.1 2.4 18th 29.0 52.7 average 55%
larapuna (Eddystone Point) 16.0 +0.4 18.9 9th 8.8 -0.6 4.4 8th 21.6 64.4 low 34%
Maria Island (Point Lesueur) 14.6 -0.6 19.2 31st 9.0 -0.7 5.5 20th 34.8 42.9 average 81%
St Helens Aerodrome 15.7 -0.4 19.1 2nd 6.7 -0.6 1.6 18th 14.4 48.0 low 30%
Swan Island 15.4 -0.5 17.9 12th 10.3 -0.5 5.5 8th 39.4 53.9 average 73%
Swansea (Francis Street) 15.6 -0.5 19.3 31st 5.3 -1.2 -0.8 18th 13.0 41.8 v low 31%
Midlands (district 93)
Ross (The Boulevards) 13.6 -0.7 17.2 31st 0.7 -2.6 -6.6 17th 19.6 32.2 average 61%
Southeast (district 94)
Campania (Kincora) 15.9 0.0 20.9 15th 4.6 -1.2 -2.2 18th 18.8 37.0 average 51%
Cape Bruny (Cape Bruny) 14.0 -0.3 16.6 24th 8.2 -0.5 5.2 7th 73.8 69.4 average 106%
Dennes Point 15.3 +0.3 19.0 31st 7.8 -0.8 3.6 8th 21.6 51.5 v low 42%
Dover 14.0 -0.7 17.4 24th 4.9 -0.8 -0.2 8th 55.6 73.1 average 76%
Dunalley (Stroud Point) 15.0 -0.2 19.6 31st 8.0 -0.8 4.5 7th 45.2 55.4 average 82%
Grove (Research Station) 14.9 -0.1 18.9 24th 3.2 -1.1 -3.9 8th 50.8 69.2 average 73%
Hobart (Ellerslie Road) 15.5 +1.0 19.5 31st 7.1 +0.1 2.0 7th 22.2 47.4 low 47%
Hobart Airport 15.6   19.7 31st 5.8   1.0 7th 19.4
kunanyi (Mount Wellington Pinnacle) 5.0 -0.7 11.9 11th -0.1 -0.8 -4.1 7th 37.4 71.9 low 52%
Maatsuyker Island Lighthouse 12.5 -0.3 15.6 1st 8.6 +0.1 4.7 7th 137.4 115.9 high 119%
Tasman Island 12.7 -0.5 16.3 30th 7.9 -0.8 4.4 7th 96.2 71.3 high 135%
Tunnack Fire Station 12.3 0.0 16.1 31st 1.8 -1.8 -5.1 7th 35.4 47.6 average 74%
Derwent Valley (district 95)
Bushy Park (Bushy Park Estates) 15.6 +1.2 21.0 24th 2.8 -1.2 -4.8 7th 23.8 45.9 low 52%
Ouse Fire Station 15.0 +0.2 20.2 24th 2.8 -0.7 -6.1 7th 24.2 39.4 average 61%
Central Plateau (district 96)
Butlers Gorge 9.6 -0.4 14.6 11th 2.0 +0.2 -2.9 18th 164.4 162.6 average 101%
Liawenee 8.3 -0.7 12.5 2nd -0.4 -0.7 -5.9 7th 16.6 84.1 lowest 20%
West Coast (district 97)
Cape Sorell 14.3 +0.5 16.9 13th 9.5 +0.4 3.5 7th 131.8 130.0 average 101%
Hartz Mountain (Keoghs Pimple) 6.9 -1.6 11.8 11th 2.4 -1.0 -1.3 7th 135.2 92.7 high 146%
Low Rocky Point 13.7 -0.5 15.9 14th 8.8 -0.2 2.3 7th 161.8 143.1 average 113%
Mount Read 5.2 -1.2 8.1 24th 1.1 -1.1 -3.1 7th 610.8 437.7 high 140%
Scotts Peak Dam 11.1 -0.5 15.9 14th 5.2 -0.3 -0.8 7th 228.6 193.2 average 118%
Strahan Aerodrome 14.0 -0.3 16.7 1st 7.6 +0.1 -0.6 7th 189.8 161.5 average 118%
Warra 10.5 -0.5 13.7 24th 4.1 -0.5 -2.0 7th 218.8 170.9 high 128%
King Island (district 98)
King Island Airport 15.4 -0.2 18.3 14th 9.1 -0.3 3.1 13th 78.4 89.3 average 88%
Flinders Island (district 99)
Flinders Island Airport 15.6 -0.7 18.5 15th 8.7 -0.3 -1.3 17th 33.2 77.6 low 43%
Hogan Island 15.1 -0.5 17.9 15th 10.4 -1.0 6.8 4th 59.4 59.1 average 101%
Note: From 2017, information about Macquarie Island can be found in the climate summary for the Remote Islands and Antarctica

Notes

The Monthly climate summary, usually published in the first week of the following month, lists the main features of the weather in Tasmania using the most timely and accurate information available on the date of publication; it will generally not be updated.

This statement has been prepared based on information available at 9 am on Friday 2 June 2023. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

Averages for individual sites are long-term means based on observations from all available years of record, which vary widely from site to site. They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall is in decile 1, low in decile 2 or 3, average in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.


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