GLASGOW, MONTANA
NORMALS, MEANS, AND EXTREMES

LATITUDE: 48 Deg. 13 Min. N LONGITUDE: 106 Deg. 37 Min. W ELEVATION: FT. GRND 2284 BARO 2279 TIME ZONE: MOUNTAIN WBAN: 94008

(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






39

39



19.9
1.2
10.6

57
1992
-47
1969


27.1
7.9
17.5

71
1992
-37
1982


39.8
19.0
29.4

79
1993
-27
1960


56.5
32.0
44.3

91
1980
-3
1975


67.3
42.5
55.0

102
1988
20
1976


77.5
51.3
64.4

108
1988
33
1979


84.7
56.7
70.8

104
1983
41
1977


83.5
55.3
69.4

108
1983
37
1994


70.4
44.1
57.3

103
1983
20
1985


58.7
33.3
46.1

90
1992
-6
1991


39.6
18.8
29.2

75
1975
-26
1985


24.9
5.5
15.2

59
1979
-38
1989


54.2
30.6
42.4

108
JUN 1988
-47
JAN 1969
NORMAL DEGREE DAYS
Heating (base 65 Deg. F)
Cooling (base 65 Deg. F)




1686
0

1330
0

1104
0

621
0

322
12

121
103

19
199

71
208

267
36

586
0

1074
0

1544
0

8745
558
% 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
90 Deg. F and above
32 Deg. F and below
-Minimum
32 Deg. F and below
0 Deg. F and below

39


39
39
39

39

39
35

35


30
30

30
30

7.1


5.4
7.3
18.3

8.5

2.2
0.0

2.3


0.0
22.4

30.9
14.7

7.0


5.1
7.3
15.8

6.8

1.5
0.0

2.3


0.0
16.2

27.6
9.6

7.0


5.1
9.3
16.7

7.3

1.2
0.1

2.0


0.0
7.6

28.1
2.5

6.9


5.4
8.5
16.1

7.1

0.8
0.5

0.6


0.*
0.8

15.3
0.1

6.6


5.6
10.5
14.9

9.7

0.1
3.6

0.3


0.8
0.0

2.5
0.0

6.0


7.1
11.8
11.2

10.7

0.0
7.5

0.3


3.4
0.0

0.0
0.0

4.7


12.4
12.0
6.6

8.1

0.0
7.9

0.1


9.0
0.0

0.0
0.0

4.8


12.1
11.1
7.9

7.2

0.0
6.1

0.1


8.8
0.0

0.0
0.0

5.6


9.2
9.4
11.4

6.3

0.1
1.5

0.2


1.6
0.0

2.0
0.0

6.3


7.6
8.9
14.6

4.8

0.4
0.1

0.6


0.1
0.9

13.0
0.2

7.0


5.9
6.8
17.3

6.1

1.1
0.*

1.7


0.0
8.5

27.4
2.4

7.2


5.0
8.1
17.9

7.9

1.6
0.0

2.5


0.0
19.1

30.8
9.5

6.3


85.9
111.0
168.5

90.3

9.1
27.4

13.2


23.6
75.3

177.5
38.9
AV. STATION PRES. (mb)
22
934.3
934.4
931.8
932.2
931.0
931.2
933.0
933.4
934.0
933.8
933.2
933.6
933.0
RELATIVE HUMIDITY (%)
Hour 04
Hour 10 (Local Time)
Hour 16
Hour 22

30
30
30
30

76
72
72
75

78
72
70
78

80
64
57
75

75
50
42
64

73
46
39
63

76
47
39
65

73
43
34
59

69
41
32
15

72
48
38
61

74
53
46
66

79
68
64
75

78
73
73
77

75
56
51
68
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



39

39

39


39

39



0.37
1.24
1969
T
1973
0.37
1969

24.2
1971
8.8
1971


0.27
0.74
1979
0.04
1992
0.27
1982

15.9
1979
4.7
1979


0.41
1.27
1987
0.05
1957
0.94
1987

14.9
1987
10.9
1987


0.69
1.99
1961
0.07
1956
1.16
1969

13.7
1970
8.4
1970


1.77
3.74
1982
0.03
1958
2.07
1974

10.7
1983
10.1
1983


2.11
5.36
1963
0.09
1985
2.47
1972

T
1994
T
1994


1.72
5.93
1993
0.01
1984
3.98
1962

T
1989
T
1989


1.35
5.74
1985
0.03
1983
4.99
1985

T
1994
T
1994


1.00
4.14
1978
0.04
1960
1.98
1978

2.2
1983
2.1
1983


0.61
1.80
1994
T
1965
1.21
1981

7.0
1975
5.3
1975


0.28
1.26
1958
T
1969
0.42
1993

17.2
1958
10.5
1993


0.38
1.03
1982
0.03
1987
0.36
982

13.9
1972
7.0
1972


10.96
5.93
JUL 1993
T
JAN 1973
4.99
AUG 1985

24.2
JAN 1971
10.9
MAR 1987
WIND
Mean Speed (mph)
Prevailing Direction
through 1964
Fastest Mile
-Direction(!!)
-Speed(mph)
-Year
Peak Gust
-Direction(!!)
-Speed(mph)
-Date

25



26



11
11


10.1



33
41
1987

W
61
1990

10.2



28
44
1974

NW
68
1988

11.2



30
41
1979

NW
5
1994

12.4



32
46
1978

28
6.1
1994

12.0



26
41
1994

SE
63
1988

11.2



06
53
1994

07
66
1994

10.6



30
69
1988

NW
76
1988

10.9



11
44
1994

W
12
1988

10.9



3
46
1971

S
52
1985

10.6



32
4
1968

NW
60
1990

9.6



27
48
1978

NW
55
1989

9.8



30
40
1988

NW
61
1988

10.8



30
69
JUL 1988

NW
76
JUL 1988
(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.