MCGRATH, ALASKA
NORMALS, MEANS, AND EXTREMES

LATITUDE: 62 Deg. 58 Min. N LONGITUDE: 155 Deg. 37 Min. W ELEVATION: FT. GRND 344 BARO 340 TIME ZONE: ALASKA WBAN: 26510

(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






53

53



0.4
-17.8
-8.7

54
1945
-75
1989


8.9
-14.2
-2.6

55
1943
-64
1947


23.4
-2.9
10.2

51
1962
-51
1966


37.0
16.0
26.5

67
1958
-40
1985


54.5
34.5
44.5

82
1993
-2
1945


65.5
45.1
55.3

90
1969
30
1974


68.4
49.0
58.7

89
1977
33
1981


63.5
45.0
54.3

89
1977
25
1984


52.9
35.4
44.2

76
1957
2
1992


31.3
18.0
24.7

59
1969
-28
1982


12.4
-3.7
4.4

49
1967
-53
1.990


2.7
-14.6
-6.0

49
1977
-67
1961


35.1
15.8
25.5

90
JUN 1969
-75
JAN 1989
NORMAL DEGREE DAYS
Heating (base 65 Deg. F)
Cooling (base 65 Deg. F)




2285
0

1893
0

1699
0

1155
0

636
0

291
0

207
12

338
6

624
0

1249
0

1818
0

2201
0

14396
18
% OF POSSIBLE SUNSHINE














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

53


53
53
53

53

46
53

53


53
53

53
53

6.4


9.2
4.8
17.0

9.7

4.6
0.0

1.9


0.0
29.3

30.9
23.9

6.1


9.0
4.4
14.8

8.3

3.7
0.0

1.1


0.0
25.6

28.2
20.8

6.1


9.1
6.2
15.7

9.2

3.7
0.0

0.6


0.0
22.3

30.7
18.4

6.5


7.3
7.2
15.6

7.1

2.1
0.0

0.3


0.0
7.9

28.2
5.0

7.3


4.0
8.3
18.7

9.5

0.3
0.5

0.5


1.6
0.5

11.1
0.*

7.8


1.8
8.7
19.5

12.7

0.0
2.9

0.4


10.3
0.0

0.2
0.0

7.9


2.2
7.7
21.1

14.7

0.0
2.5

0.8


13.9
0.0

0.0
0.0

8.2


2.3
5.3
23.4

17.2

0.0
0.7

1.3


6.0
0.0

1.0
0.0

7.9


3.5
4.9
21.6

13.9

0.4
0.1

1.0


0.4
0.3

10.2
0.0

8.1


3.8
4.8
22.4

12.4

3.5
0.0

1.3


0.0
15.5

28.0
3.3

7.3


6.4
4.4
19.2

11.7

5.5
0.0

1.4


0.0
27.0

29.7
17.0

6.9


7.6
4.5
18.9

11.9

5.6
0.0

2.3


0.0
29.4

30.9
23.6

7.2


66.3
71.1
227.8

138.4

29.5
6.8

13.0


32.2
157.8

229.1
112.0
AV. STATION PRES. (mb)
22
995.7
998.0
996.0
996.9
996.9
998.8
1001.0
999.9
996.1
993.7
994.6
994.3
996.8
RELATIVE HUMIDITY (%)
Hour 04
Hour 10 (Local Time)
Hour 16
Hour 22

41
41
45
44

72
72
71
73

71
71
63
70

73
72
53
65

7
67
49
59

77
63
44
53

81
66
48
56

85
74
55
64

88
83
61
74

85
84
61
76

83
83
69
80

78
78
75
78

74
75
74
74

78
74
60
69
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



53

53

53


53

52



0.75
3.74
1993
0.10
1961
1.03
1957

42.2
1993
11.7
1957


0.66
3.05
1944
0.00
1979
1.15
1956

38.0
1944
13.5
1976


0.80
2.82
1991
T
1986
1.17
1982

35.8
1990
14.3
1982


0.82
2.78
1964
0.01
1943
1.10
1960

32.8
1964
13.2
1964


0.87
3.07
1988
0.18
1979
1.11
1960

10.7
1992
7.0
1971


1.47
4.36
1950
0.42
1957
2.39
1950

0.1
1975
0.1
1975


2.05
5.36
1975
0.38
1993
2.56
1975

T
1990
T
1990


2.47
6.26
1945
0.80
1968
2.10
1955

T
1948
T
1948


1.98
6.18
1993
0.19
1969
1.64
1945

13.7
1992
7.0
1992


1.40
4.59
1946
0.14
1965
1.54
1945

32.1
1971
10.5
1971


1.29
4.34
1979
0.02
1963
1.51
1985

53.6
1994
15.2
1946


1.40
5.02
1990
0.11
1966
1.90
1990

54.2
1990
15.5
1978


15.96
6.26
AUG 1945
0.00
FEB 1979
2.56
JUL 1975

54.2
DEC 1990
15.5
DEC 1978
WIND
Mean Speed (mph)
Prevailing Direction
through 1964
Fastest Mile
-Direction(!!)
-Speed(mph)
-Year
Peak Gust
-Direction(!!)
-Speed(mph)
-Date

45



40



16
16


3.2

N

18
32
1991

S
59
1993

4.4

NW

18
75
1951

SW
47
1994

5.3

N

18
51
1958

SE
46
1991

6.5

N

20
38
1951

S
46
1995

6.7

N

15
30
1985

S
45
1985

6.4

WNW

20
31
1963

NW
62
1985

6.0

S

19
31
1966

S
46
1994

5.8

S

18
43
1951

S
49
1994

5.9

N

18
40
1959

S
49
1983

5.4

N

20
36
1951

E
40
1980

3.8

ESE

19
39
1965

S
53
1994

3.2

N

18
47
1951

SW
52
1992

5.2

N

18
75
FEB 1951

NW
62
JUN 1985
(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.