Weather History for Helena, MT

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Month of November, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 67 °F 44 °F 14 °F
Mean Temperature 57 °F 35 °F 6 °F
Min Temperature 47 °F 25 °F -7 °F
Degree Days  
Heating Degree Days (base 65) 59 30 8 903
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 0 0 9
Dew Point  
Dew Point 40 °F 24 °F -7 °F
Precipitation  
Precipitation 0.85 in 0.07 in 0.00 in 1.78 in
Snowdepth 11.0 in 2.0 in 0.0 in -
Wind  
Wind 40 mph 5 mph 0 mph
Gust Wind 52 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.60 in 30.12 in 29.62 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Nov. 25, 2012 Rise Set
Actual Time 7:44 AM MST 4:45 PM MST
Civil Twilight 7:10 AM MST 5:19 PM MST
Nautical Twilight 6:33 AM MST 5:56 PM MST
Astronomical Twilight 5:57 AM MST 6:32 PM MST
Moon 3:10 PM MST (11/25) 4:55 AM MST (11/25)
Length of Visible Light 10h 08m
Length of Day
9h 00m
Waxing Gibbous, 93% of the Moon is Illuminated
Nov 25
Waxing Gibbous
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New
Dec 19
First Quarter

Weather History Calendar

Precipitation Actual month total 1.78 Normal Month Total: 0.49
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
61 | 40 0.00
Average:
51 | 28 0.01
Rain
Actual:
56 | 34 0.02
Average:
51 | 27 0.02
Partly Cloudy
Actual:
51 | 27 T
Average:
50 | 27 0.01
Rain
Actual:
60 | 47 T
Average:
49 | 27 0.02
Partly Cloudy
Actual:
67 | 47 0.00
Average:
49 | 26 0.01
Clear
Actual:
60 | 41 0.00
Average:
48 | 26 0.02
Scattered Clouds
Actual:
59 | 34 0.00
Average:
48 | 25 0.02
Snow
Actual:
36 | 26 0.85
Average:
47 | 25 0.01
Snow
Actual:
27 | 11 0.52
Average:
47 | 25 0.02
Snow
Actual:
14 | -2 0.06
Average:
46 | 24 0.02
Partly Cloudy
Actual:
27 | -7 0.00
Average:
46 | 24 0.01
Partly Cloudy
Actual:
29 | 9 0.00
Average:
45 | 24 0.02
Partly Cloudy
Actual:
41 | 27 0.00
Average:
44 | 23 0.02
Partly Cloudy
Actual:
43 | 22 0.00
Average:
44 | 23 0.01
Scattered Clouds
Actual:
38 | 21 0.00
Average:
43 | 22 0.02
Scattered Clouds
Actual:
35 | 19 0.00
Average:
43 | 22 0.02
Scattered Clouds
Actual:
41 | 21 0.00
Average:
42 | 22 0.01
Rain
Actual:
43 | 23 T
Average:
42 | 21 0.02
Clear
Actual:
52 | 20 0.00
Average:
41 | 21 0.02
Scattered Clouds
Actual:
58 | 45 0.00
Average:
41 | 20 0.01
Snow
Actual:
47 | 30 0.30
Average:
40 | 20 0.02
Snow
Actual:
40 | 23 T
Average:
40 | 19 0.02
Clear
Actual:
42 | 21 0.00
Average:
39 | 19 0.01
Partly Cloudy
Actual:
50 | 25 0.00
Average:
38 | 19 0.02
Snow
Actual:
39 | 25 T
Average:
38 | 18 0.02
Clear
Actual:
34 | 18 0.00
Average:
37 | 18 0.01
Clear
Actual:
33 | 19 0.00
Average:
37 | 17 0.02
Scattered Clouds
Actual:
41 | 22 0.00
Average:
36 | 17 0.02
Partly Cloudy
Actual:
50 | 30 0.00
Average:
36 | 16 0.01
Partly Cloudy
Actual:
53 | 36 0.03
Average:
36 | 16 0.02
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Nov high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 61 51 40 38 35 31 76 56 36 30.04 29.89 29.81 10 10 10 22 5 31 0.00  
2 56 45 34 37 33 30 82 63 44 30.20 30.13 30.02 10 10 9 21 8 28 0.02 Rain
3 51 39 27 36 31 26 92 71 50 30.26 30.20 30.12 10 10 10 8 1 13 T  
4 60 54 47 38 37 34 56 50 43 30.34 30.28 30.16 10 10 10 24 9 32 T Rain
5 67 57 47 40 37 32 71 50 29 30.30 30.20 30.12 10 10 10 30 10 40 0.00  
6 60 51 41 38 36 34 76 58 40 30.26 30.13 29.95 10 10 10 14 3 18 0.00  
7 59 47 34 36 29 20 79 60 40 30.04 29.91 29.74 10 10 10 25 7 31 0.00  
8 36 31 26 27 24 19 92 72 52 30.07 29.89 29.74 10 3 0 12 8 18 0.85 Fog , Snow
9 27 19 11 25 14 7 92 84 76 30.15 29.90 29.72 7 1 0 16 9 18 0.52 Fog , Snow
10 14 6 -2 7 2 -6 87 73 58 30.31 30.10 29.91 10 5 1 12 5 15 0.06 Snow
11 27 10 -7 12 3 -7 95 73 50 30.46 30.39 30.09 10 9 7 18 4 22 0.00  
12 29 19 9 22 15 6 84 67 50 30.46 30.40 30.35 10 10 9 10 3 15 0.00  
13 41 34 27 29 26 21 85 75 64 30.38 30.31 30.24 10 10 9 10 3 13 0.00  
14 43 33 22 29 25 22 88 70 51 30.39 30.28 30.11 10 10 10 18 6 24 0.00  
15 38 30 21 26 23 18 92 78 64 30.41 30.31 30.17 10 10 10 9 2 12 0.00  
16 35 27 19 26 22 16 85 75 64 30.18 30.14 30.09 10 10 8 7 1 8 0.00  
17 41 31 21 30 25 19 96 80 64 30.16 30.02 29.81 10 8 1 8 2 10 0.00  
18 43 33 23 31 26 20 89 70 51 30.12 29.95 29.74 10 10 10 30 7 38 T Rain
19 52 36 20 29 24 17 84 61 38 30.15 30.06 29.92 10 10 10 28 9 38 0.00  
20 58 52 45 35 32 29 61 49 36 29.92 29.85 29.79 10 10 10 26 13 37 0.00  
21 47 39 30 38 31 19 92 68 44 30.09 29.86 29.74 10 9 3 22 7 30 0.30 Rain , Snow
22 40 32 23 23 18 15 74 56 37 30.60 30.43 30.12 10 10 9 40 11 52 T Snow
23 42 32 21 23 20 16 84 63 41 30.58 30.39 30.18 10 10 10 7 2 8 0.00  
24 50 38 25 34 27 21 81 65 49 30.17 30.11 30.00 10 10 10 18 5 22 0.00  
25 39 32 25 29 20 13 75 54 33 30.37 30.17 30.03 10 10 9 24 7 31 T Snow
26 34 26 18 18 16 14 84 66 47 30.44 30.36 30.14 10 10 10 9 3 12 0.00  
27 33 26 19 23 19 15 84 73 61 30.38 30.31 30.25 10 10 9 5 0 6 0.00  
28 41 32 22 25 23 19 92 69 46 30.24 30.11 29.97 10 10 8 7 1 7 0.00  
29 50 40 30 33 28 24 89 63 36 30.04 29.95 29.85 10 10 10 15 3 22 0.00  
30 53 45 36 39 32 27 89 69 49 29.85 29.72 29.62 10 10 7 18 4 26 0.03