26
Station
Altitude
(m)
Distance
from
coast
(km)
Temp
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
Deloraine
250
Max
Min
21.3
7.7
22.5
8.7
19.6
6.3
16.5
4.5
13.2
2.7
10.9
1.0
10.4
0.9
11.4
1.2
13.3
3.1
15.5
4.4
17.7
5.4
20.1
7.2
16.0
4.4
George
Town
20
Max
Min
22.0
12.1
22.8
12.7
21.1
11.1
18.2
8.8
15.3
6.6
12.9
4.5
12.6
4.2
13.2
4.6
14.3
5.6
16.2
7.1
18.3
9.2
19.8
10.5
17.2
8.1
Low Head
15
Max
Min
20.2
12.8
20.8
13.2
19.5
12.1
17.1
10.3
14.5
8.3
12.4
6.5
11.8
5.9
12.3
6.3
13.4
7.4
14.9
8.6
16.8
10.0
18.7
11.6
16.0
9.4
Table 4:
Average maximum and minimum temperatures for selected stations (
o
C)
(Source: Australia, Bureau of Meteorology, 1990, Average and Extreme Maximum and Minimum Temperatures, Selected Tasmanian Stations.
Commonwealth Bureau of Meteorology, Hobart, (unpublished)).
27
Station
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
Deloraine
1962-72
(a)
(b)
(c)
11
1.5
0.2
11
1.5
0.6
11
3.5
1.2
11
7.5
3.9
11
14.9
8.9
11
17.2
12.2
11
19.3
12.8
11
16.5
10.0
11
12.1
6.3
11
9.6
3.9
11
4.4
1.0
11
1.8
0.2
110.1
60.9
Low Head
1939-72
(a)
(b)
(c)
33
-
-
33
-
-
33
-
-
33
-
-
33
0.8
0.2
33
2.2
0.2
33
4.0
0.5
33
2.8
0.2
33
0.8
0.1
33
0.1
-
33
-
-
33
-
-
10.7
1.2
(a)
Number
of months of records
(b)
Air temperature equal to or less than 2
o
C (light frost)
(c)
Air temperature equal to or less than 0
o
C (heavy frost)
Table 5:
Average frequency of frost (days per month)
(Source: Australia, Bureau of Meteorology, 1980, Climatic Survey, Tasmania, Region 3, Northern. Australian Government Publishing Service,
Canberra).
28
Figure 3:
Average dates (A) first occurrences and (B) last occurrences of air frosts in Tasmania.
(Source: Langford, J., 1965, Weather and Climate, in Atlas of Tasmania. Land and Surveys Department, Hobart)
29
Figure 4:
Average annual rainfall (in millimetres) of Tamar map.
(Source: Hydro Electric Commission, 1986, Average Annual Rainfall Map of Tasmania
(1:500 000 scale map, unpublished) Hobart, Tasmania.)
30
Average Annual Rainfall
Station
Period of
Record
No. of full
years of
records
(in)
(mm)
Beaconsfield
2
1908-1927
20
34.4
874
Beaconsfield
2
1928-1956
29
39.3
998
Beaconsfield
3
1908-1973
66
37.5
954
Blackwall
2
1929-1930
2
41.0
1041
Clarence Point
2
1915-1932
18
33.9
861
Clarence Point
2
1933-1939
7
29.0
737
Dunorlan
2
1941-1945
3
35.6
904
Frankford West
2
1893-1958
65
41.9
1064
Frankford West
3
1893-1973
79
42.3
1075
George Town
1
1968-1978
11
34.5
876
Glengarry
2
1899-1955
56
40.0
1016
Glengarry
3
1950-1973
24
37.7
959
Glengarry Exp Farm
2
1931-1956
21
37.1
942
Gravelly Beach
2
1909-1935
25
33.5
851
Hillwood
2
1931-1956
26
33.2
843
Kelso
2
1930-1956
26
30.9
785
Kelso West
2
1930-1973
42
30.4
773
Kimberley
2
1917-1924
8
37.3
947
Lefroy
2
1913-1945
29
32.8
833
Lefroy
3
1913-1973
47
34.3
872
Low Head
2
1883-1958
76
27.2
691
Low Head
3
1882-1973
91
26.8
683
Low Head Lighthouse
1
1877-1982
105
27.8
706
Moltema
2
1915-1937
23
39.8
1011
Parkham
2
1917-1945
29
38.4
975
Selbourne
2
1919-1945
25
34.3
871
'Riverdale', Selbourne
2
1954-1957
4
39.1
993
Table 6:
Average yearly rainfall for selected stations.
(Source: 1. Australia, Bureau of Meteorology, 1988, Climatic Averages Australia. Australian
Government Publishing Service, Canberra.
2. Nicolls, K.D. & Aves, S.M., 1961, Average Yearly Rainfall in Tasmania. Commonwealth Bureau of
Meteorology, Melbourne.
3. Australia, Bureau of Meteorology, 1980, Climatic Survey, Tasmania. Region 3, Northern. Australian
Government Publishing Service, Canberra.)