Tuesday, 1 May 2007 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0
Western Australia in April 2007
An average month.
Summary
A series of cold fronts and northwest cloud bands brought some relieving rain to parts of the Southwest Land Division and an area from the south and west Pilbara to the north Gascoyne, with above to very much above average rainfall. Some locations registered their wettest April on record, however the mean rainfall across the state this month was near average.
For Western Australia as a whole, both the mean maximum temperature and the mean minimum temperature were above the standard long term (1961−1990) average with anomalies of 0.66°C and 0.36°C respectively.
Some extremes and records for individual locations in WA are tabulated below.
Extremes
| Hottest day Highest temperature |
40.8°C at Mardie on the 5th |
|---|---|
| Warmest
days on average Highest mean daily maximum temperature |
36.8°C at Fitzroy Crossing Aero |
| Coolest
days on average Lowest mean daily maximum temperature |
20.8°C at Cape Leeuwin |
| Coldest day Lowest daily maximum temperature | 14.6°C at Rocky
Gully on the 9th |
| Coldest night Lowest temperature | 0.5°C at Jarrahwood on the 26th |
| Coolest nights on average Lowest mean daily minimum temperature | 8.0°C at
Collie East |
| Warmest nights on average Highest mean daily minimum temperature | 27.2°C at
Troughton Island |
| Warmest night Highest daily minimum temperature | 28.5°C at Troughton
Island on the 30th |
| Wettest overall Highest total rainfall | 147.8 mm at Cape Le Grand Nat Park |
| Wettest day Highest daily rainfall |
74.0 mm at Dairy Creek on the 25th |
| Highest
wind gust | 106 km/h at Cape Leeuwin
on the 30th |
Jump to: Extremes Records Notes the top
Records
| Record highest total April rainfall | |||||
|---|---|---|---|---|---|
| Total rainfall for April 2007 (mm) | Previous highest for April | Years of record | Normal
for April | ||
| Gascoyne Junction | 82.2 | 77.2 | in 1978 | 100 | 14.5 |
| Mooloo Downs | 64.0 | 55.5 | in 1996 | 48 | 11.1 |
| Dalgety Downs | 79.0 | 66.8 | in 1966 | 45 | 12.8 |
| Telina Downs | 136.2 | 108.1 | in 1970 | 43 | 43.4 |
| Erinair | 100.4 | 99.3 | in 1970 | 40 | 42.1 |
| Esperance Aero | 124.4 | 96.4 | in 2006 | 38 | 42.3 |
| Record lowest April mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
Mean daily minimum temperature for April 2007 (°C) |
Previous lowest for April | Years of record | Normal for April | ||
| Kalbarri | 14.2 | 14.3 | in 1971 | 32 | 16.2 |
| Record highest April daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
| Highest daily minimum temperature in April 2007 (°C) | Previous highest for April | Years
of record | Normal for April | |||
| Southern Cross | 24.0 | on the 5th | 22.6 | on the 2nd in 1990 | 50 | 11.5 |
| Lake Grace Comparison | 21.3 | on the 5th | 21.2 | on the 1st in 1989 | 42 | 11.5 |
| Record lowest April temperature | ||||||
|---|---|---|---|---|---|---|
| Lowest
temperature in April 2007 (°C) | Previous lowest for April | Years of record | Normal for April | |||
| Albany Airport | 3.2 | on the 27th | 3.3 | on the 16th in 1986 | 43 | 11.6 |
| Esperance | 5.5 | on the 28th | 5.7 | on the 21st in 1970 | 38 | 13.2 |
Jump to: Extremes Records Notes the top
Notes
This statement has been prepared based on information available at 12 pm on Tuesday 1 May 2007. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Normals 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 30 years of record,
as they cannot then be calculated reliably.
The median
is sometimes more representative than the mean
of "normal" rain.
Further information
Yanhui Blockley
& Glenn Cook
Western Australia Climate Services Centre
Bureau of Meteorology
Phone
(08) 9263 2222
Email climate.wa@bom.gov.au