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December weather forecast in Helena
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
1
−1
−6
1 December, Sunday. day, -1°; night, -6°; overcast
2
−4
−7
2 December, Monday. day, -4°; night, -7°; snow
3
−5
−8
3 December, Tuesday. day, -5°; night, -8°; overcast
4
−5
−9
4 December, Wednesday. day, -5°; night, -9°; snow
5
−5
−9
5 December, Thursday. day, -5°; night, -9°; overcast
6
−6
−9
6 December, Friday. day, -6°; night, -9°; snow
7
−5
−8
7 December, Saturday. day, -5°; night, -8°; snow
8
−5
−8
8 December, Sunday. day, -5°; night, -8°; partly cloudy
9
−4
−6
9 December, Monday. day, -4°; night, -6°; overcast
10
−2
−5
10 December, Tuesday. day, -2°; night, -5°; clear
11
−2
−5
11 December, Wednesday. day, -2°; night, -5°; overcast
12
−3
−5
12 December, Thursday. day, -3°; night, -5°; snow
13
−4
−9
13 December, Friday. day, -4°; night, -9°; snow
14
−5
−9
14 December, Saturday. day, -5°; night, -9°; overcast
15
−6
−10
15 December, Sunday. day, -6°; night, -10°; snow
16
−6
−9
16 December, Monday. day, -6°; night, -9°; overcast
17
−4
−7
17 December, Tuesday. day, -4°; night, -7°; snow
18
−5
−8
18 December, Wednesday. day, -5°; night, -8°; snow
19
−5
−8
19 December, Thursday. day, -5°; night, -8°; snow
20
−4
−8
20 December, Friday. day, -4°; night, -8°; overcast
21
−5
−9
21 December, Saturday. day, -5°; night, -9°; clear
22
−5
−9
22 December, Sunday. day, -5°; night, -9°; overcast
23
−6
−9
23 December, Monday. day, -6°; night, -9°; clear
24
−7
−11
24 December, Tuesday. day, -7°; night, -11°; overcast
25
−7
−9
25 December, Wednesday. day, -7°; night, -9°; overcast
26
−5
−8
26 December, Thursday. day, -5°; night, -8°; overcast
27
−4
−7
27 December, Friday. day, -4°; night, -7°; overcast
28
−6
−12
28 December, Saturday. day, -6°; night, -12°; overcast
29
−6
−10
29 December, Sunday. day, -6°; night, -10°; overcast
30
−4
−11
30 December, Monday. day, -4°; night, -11°; partly cloudy
31
−4
−11
31 December, Tuesday. day, -4°; night, -11°; partly cloudy
1
−5
−9
1 January, Wednesday. day, -5°; night, -9°; partly cloudy
2
−4
−8
2 January, Thursday. day, -4°; night, -8°; partly cloudy
3
−5
−9
3 January, Friday. day, -5°; night, -9°; clear
4
−6
−7
4 January, Saturday. day, -6°; night, -7°; overcast
Average data for 10 years
Helena December
3
sunny days
10
days with precipitation
18
cloudy days
3 sunny days; 10 days with precipitation; 18 cloudy days;
86
%
air humidity
4.1
m/s
Wind
SW
41
mm of precipitation
(7% of annual average)
air humidity 86%; 41 millimeters of precipitation (7% of annual average); Wind south-westerly 4.1 Meters per second
Weather graphs for December
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
W
W
W
SW
SW
W
SW
W
SW
SW
SW
W
W
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
W
W
W
W
1
Average data for 10 years
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Daytime temperature
Night-time temperature
Cities near you
Medicine Hat
Jackson
Idaho Falls
Bozeman
Kalispell
Missoula
Lethbridge
West Yellowstone
Big Sky
Cities with similar weather in December
Ust-Kamenogorsk
Uralsk
Cholpon-Ata
Atyrau
Baikonur
Ottawa
Nuuk
Balkhash
Gudauri