Western Australian Monthly Climate Summary: August and Winter 2006
Record low winter rainfall in WA

Monday 4 September, 2006

In Brief

Averaged over the State it was the warmest August on record for maximum temperatures. In contrast to recent months, average to above average rain fell in the southwest corner. Further east and north it was very dry.


Details

An extensive area of WA south of a line from Exmouth to Eucla saw its lowest winter rainfall since accurate records commenced in 1900. (See map 1). Winter 2006, for Western Australia as a whole, was the second driest winter with only 1976 being drier.

It was also the warmest winter in some western parts of southern WA.

Rainfall records for winter 2006 are tabulated below for selected locations in WA (see table 1).
(several hundred rainfall sites have broken their lowest winter rainfall record and the list below only includes main towns and those locations with over 95 years of records)

Mean maximum and minimum temperature records for winter 2006 for locations with at least 30 years of records are listed in tables 2 to 4.

Please note: Only preliminary quality checks have been performed on the data.


Table 1

Record lowest total rainfall for winter

Location Total rainfall
for winter 2006 (mm)
Previous lowest
for winter
Years of
record
Perth * 230.4 260.0
in 1940
130
Northampton 71.2 112.0
in 1976
122
New Norcia 129.5 149.9
in 1914
121
Carnamah 51.7 79.4
in 1969
119
Southern Cross 38.2 43.6
in 1905
118
Mandurah * 223.8 284.7
in 1940
117
Gabyon 17.4 24.6
in 1976
117
Coolgardie 6.0 11.7
in 1969
114
Kellerberrin 62.2 63.4
in 1914
114
Doongin Peak 65.2 71.2
in 1914
111
Bulong 7.2 11.7
in 1969
110
Mingenew 88.2 90.7
in 1976
110
Leonora 5.2 5.3
in 1969
109
Denham 17.6 26.1
in 1979
106
Mullewa 45.3 73.9
in 1979
106
Yalgoo 18.8 39.2
in 1969
105
Barnong 30.6 41.6
in 1976
104
Merredin 63.0 74.3
in 1914
103
Nangeenan 58.6 62.0
in 1911
103
Berkshire Valley 116.6 122.1
in 1914
100
Cowcowing 52.8 60.0
in 1911
100
Nabawa 97.2 102.2
in 1976
100
Yandanooka 80.8 85.2
in 1976
100
Armadale 183.6 300.5
in 1914
98
Kokardine 61.8 76.0
in 1984
98
Tammin 70.1 73.7
in 1914
96
Bullfinch 45.8 52.0
in 1940
95
Marron 4.6 8.8
in 1979
95
Ogilvie 68.3 76.0
in 1976
95
Yuna 60.2 85.2
in 1914
95
Dalwallinu Comparison 62.0 76.0
in 1914
94
Wyalkatchem 52.7 68.4
in 1914
94
Koorda 39.2 64.3
in 1994
93
Westonia 55.9 58.8
in 1976
92
Perenjori 30.6 67.8
in 1976
86
Narembeen 70.8 73.7
in 1940
80
Margaret River 409.8 415.0
in 1971
76
Lake King 51.5 53.3
in 1971
72
Kalgoorlie-Boulder Airport 7.0 10.2
in 1976
68
Port Hedland Airport 0.2 0.6
in 1976
64
Perth Airport 233.0 285.3
in 1971
63
Carnarvon Airport 10.2 22.8
in 1979
62
Meekatharra Airport 5.2 9.2
in 1969
61
Learmonth Airport 6.4 6.8
in 1962
53

* Denotes a composite site.

Table 2

Record highest mean daily maximum temperature for winter

Location Mean daily maximum
temperature
for winter 2006 (°C)
Previous highest
for winter
Years of
record
Cape Naturaliste 18.5 17.9
in 1999
102
Kellerberrin 19.3 19.1
in 1940
94
Northam 19.7 19.4
in 1940
93
Dwellingup 17.1 16.8
in 1959
65
Manjimup 16.2 16.1
in 1949
65
Perth Airport 20.0 19.9
in 1959
63
Mullewa 22.1 21.9
in 1949
59
Pemberton 17.2 16.9
in 1948
59
Corrigin 17.6 17.5
in 1959
58
Cunderdin 19.1 18.9
in 1977
56
Norseman 19.5 19.2
in 2002
55
Salmon Gums Res.Stn. 18.7 18.6
in 2002
55
Lake Grace Comparison 17.9 17.3
in 1959
50
Dalwallinu Comparison 19.7 19.4
in 1977
49
Pearce RAAF 19.7 19.4
in 1994
45
Wongan Hills Res.Station 19.1 18.9
in 2001
43
Albany Airport 17.4 17.1
in 1983
42
Merredin 18.9 18.3
in 1977
41
Brookton 18.1 18.0
in 1977
39
Gascoyne Junction 25.9 25.8
in 1940
39
Narrogin 16.9 16.5
in 2001
38
Ongerup 16.8 16.5
in 2001
38
Jurien Bay 21.2 20.9
in 1976
37
Wongan Hills 19.5 19.2
in 1977
37
Beverley 19.1 18.9
in 1977
36
Karnet 17.6 16.8
in 1994
35
Pingelly 17.7 16.9
in 1977
35
Eneabba 22.1 21.4
in 2001
32
Hyden 19.2 18.3
in 2002
32
Wagin 17.3 16.7
in 2001
32

Table 3

Record lowest mean daily maximum temperature for winter

Location Mean daily maximum
temperature
for winter 2006 (°C)
Previous lowest
for winter
Years of
record
Wyndham 30.3 30.4
in 1977
37

Table 4

Record lowest mean daily minimum temperature for winter


Mean daily minimum
temperature
for winter 2006 (°C)
Previous lowest
for winter
Years of
record
Carnarvon Airport 10.0 10.4
in 1966
60
Mardie 10.4 10.5
in 1967
48
Eyre 4.3 4.7
in 2001
45

Further information:
Yanhui Blockley, John Relf Western Australia Climate Services Centre
climate.wa@bom.gov.au
Tel: (08) 9263 2222, office hours.