JUNEAU, ALASKA
NORMALS, MEANS, AND EXTREMES

LATITUDE: 58 Deg. 22 Min. N LONGITUDE: 134 Deg. 35 Min. W ELEVATION: FT. GRND 12 BARO 20 TIME ZONE: ALASKA WBAN: 25309

(a)
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
YEAR
TEMPERATURE (Deg. F)
Normals
-Daily Maximum
-Daily Minimum
-Monthly
Extremes
-Record Highest
-Year
-Record Lowest
-Year






51

51



29.4
19.0
24.2

57
1958
-22
1972


34.1
22.7
28.4

57
1992
-22
1968


38.7
26.7
32.7

59
1981
-15
1972


47.2
32.1
39.7

72
1995
6
1963


55.1
38.9
47.0

82
1947
25
1972


60.9
45.0
53.0

86
1969
31
1971


63.9
48.1
56.0

90
1975
36
1950


62.7
47.3
55.0

83
1977
27
1948


55.9
42.9
49.4

72
1989
23
1972


47.1
37.2
42.2

61
1987
11
1984


36.7
27.2
32.0

56
1949
-5
1966


31.6
22.6
27.1

54
1944
-21
1949


46.9
34.1
40.6

90
JUL 1975
-22
JAN 1972
NORMAL DEGREE DAYS
Heating (base 65 Deg. F)
Cooling (base 65 Deg. F)




1265
0

102
0

1001
0

759
0

558
0

360
0

279
0

310
0

468
0

70
0

990
0

1175
0

8897
0
% OF POSSIBLE SUNSHINE
33
32
32
37
39
39
34
31
32
26
19
23
20
30
MEAN SKY COVER(tenths)
Sunrise - Sunset
MEAN NUMBER OF DAYS:
Sunrise to Sunset
-Clear
-Partly Cloudy
-Cloudy
Precipitation
.01 inches or more
Snow, Ice Pellets, Hail
1.0 inches or more
Thunderstorms
Heavy Fog Visibility
1/4 mile or less
Temperature Deg. F
-Maximum
70 Deg. F and above
32 Deg. F and below
-Minimum
32 Deg. F and below
0 Deg. F and below

45


45
45
45

51

51
51

51


51
51

51
51

7.8


5.4
2.7
22.8

18.5

7.1
0.*

2.2


0.0
15.9

25.5
4.1

8.0


4.4
2.8
21.0

16.6

5.3
0.0

2.3


0.0
9.6

22.4
1.7

8.1


4.3
3.1
23.6

18.0

4.2
0.0

1.8


0.0
3.8

22.9
0.5

8.0


3.6
4.2
22.2

16.8

0.9
0.0

0.9


0.1
0.2

14.5
0.0

8.0


3.7
4.2
23.1

17.1

0.0
0.0

0.8


1.4
0.0

3.5
0.0

8.1


3.4
4.0
22.5

15.5

0.0
0.1

0.3


5.1
0.0

0.1
0.0

8.3


2.9
4.6
23.4

16.7

0.0
0.1

0.2


7.2
0.0

0.0
0.0

8.0


4.0
4.7
22.3

17.4

0.0
0.*

1.1


5.7
0.0

0.1
0.0

8.5


2.7
3.3
24.0

20.4

0.0
0.1

2.8


0.2
0.0

1.4
0.0

8.8


2.4
2.0
26.6

23.5

0.3
0.0

3.1


0.0
0.2

7.6
0.0

8.5


3.3
2.2
24.5

20.1

3.6
0.*

3.1


0.0
6.5

18.2
0.2

8.5


3.4
2.0
25.6

21.1

5.9
0.0

2.4


0.0
12.3

23.4
2.1

8.2


43.5
40.0
281.6

221.8

27.2
0.3

20.8


19.6
48.5

139.5
8.4
AV. STATION PRES. (mb)
12
1011.0
1011.4
1009.2
1012.2
1013.5
1014.5
1015.8
1014.7
1012.7
1008.0
1008.2
1008.9
1011.7
RELATIVE HUMIDITY (%)
Hour 04
Hour 10 (Local Time)
Hour 16
Hour 22

29
29
29
29

82
82
78
82

83
82
75
81

84
83
68
79

87
80
63
76

88
78
63
72

87
79
65
72

87
83
70
76

90
87
74
81

93
91
78
88

90
89
79
88

86
85
81
85

86
85
83
85

87
84
73
80
PRECIPITATION (in.)
Water Equivalent
-Normal
-Maximum Monthly
-Year
-Minimum Monthly
-Year
-Maximum in 24 hrs
-Year
Snow, Ice Pellets, Hail
-Maximum Monthly
-Year
-Maximum in 24 hrs
-Year



51

51

51


51

51



4.54
9.11
1993
0.94
1969
2.74
1948

69.2
1982
20.1
1975


3.75
8.48
1964
0.07
1989
2.71
1993

86.3
1965
23.7
1949


3.28
6.50
1994
0.59
1983
1.81
1992

52.6
1948
31.0
1948


2.77
5.32
1980
0.27
1948
2.03
1991

46.3
1963
24.2
1963


3.42
9.20
1992
1.25
1946
2.30
1992

1.2
1964
0.7
1945


3.15
6.02
1987
1.08
1950
1.92
1953

T
1970
T
1970


4.16
7.88
1969
1.15
1972
1.92
1984

0.0

0.0



5.32
12.31
1961
0.56
1979
2.62
1974

0.0

0.0



6.73
15.14
1991
2.34
1965
3.17
1952

T
1974
T
1974


7.84
15.25
1974
2.71
1950
4.66
1946

15.6
1956
8.8
1956


4.91
11.22
1956
1.15
1983
3.40
1988

69.8
1994
19.4
1994


4.44
9.89
1956
0.49
1983
3.56
1956

54.7
1964
25.6
1962


54.31
15.25
OCT 1974
0.07
FEB 1989
4.66
OCT 1946

86.3
FEB 1965
31.0
MAR 1948
WIND
Mean Speed (mph)
Prevailing Direction
through 1964
Fastest Mile
-Direction(!!)
-Speed(mph)
-Year
Peak Gust
-Direction(!!)
-Speed(mph)
-Date

50



25







8.1

ESE

12
40
1992





8.4

ESE

1
44
1970





8.4

ESE

11
40
1963





8.6

ESE

11
40
1962





8.3

ESE

12
40
1965





7.7

N

13
32
1965





7.5

N

12
32
1970





7.4

N

12
38
1992





8.0

N


120
1993





9.5

ESE

12
49
1965





8.5

ESE

11
58
1968





8.9

ESE

11
55
1963





8.3

ESE


120
SEP 1993




(a) - Length of Record in Years, although individual months may be missing.
0.* or * - The value is between 0.0 and 0.05.
Normals - Based on the 1961 - 1990 record period.
Extremes - Dates are the most recent occurrence.
Wind Dir.- Numerals show tens of degrees clockwise from true north. "00" indicates calm.
Resultant Directions are given to whole degrees.