Weather History for Helena, MT

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Month of November, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 43 °F 14 °F
Mean Temperature 48 °F 32 °F 8 °F
Min Temperature 38 °F 21 °F 1 °F
Degree Days  
Heating Degree Days (base 65) 57 33 17 988
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 34 °F 18 °F -6 °F
Precipitation  
Precipitation 0.30 in 0.03 in 0.00 in 0.77 in
Snowdepth 4.0 in 0.6 in 0.0 in -
Wind  
Wind 37 mph 7 mph 0 mph
Gust Wind 52 mph 25 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.77 in 30.03 in 29.30 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Nov. 15, 2011 Rise Set
Actual Time 7:29 AM MST 4:54 PM MST
Civil Twilight 6:57 AM MST 5:27 PM MST
Nautical Twilight 6:20 AM MST 6:04 PM MST
Astronomical Twilight 5:44 AM MST 6:39 PM MST
Moon 9:06 PM MST (11/15) 11:33 AM MST (11/15)
Length of Visible Light 10h 30m
Length of Day
9h 24m
Waning Gibbous, 78% of the Moon is Illuminated
Nov 15
Waning Gibbous
Nov 18
Last Quarter
Nov 24
New
Dec 2
First Quarter
Dec 10
Full

Weather History Calendar

Precipitation Actual month total 0.77 Normal Month Total: 0.49
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
43 | 24 T
Average:
51 | 28 0.01
Clear
Actual:
45 | 15 0.00
Average:
51 | 27 0.02
Clear
Actual:
53 | 23 0.00
Average:
50 | 27 0.01
Snow
Actual:
40 | 24 T
Average:
49 | 27 0.02
Snow
Actual:
36 | 24 0.11
Average:
49 | 26 0.01
Scattered Clouds
Actual:
36 | 13 0.00
Average:
48 | 26 0.02
Scattered Clouds
Actual:
38 | 14 0.00
Average:
48 | 25 0.02
Partly Cloudy
Actual:
62 | 28 0.00
Average:
47 | 25 0.01
Clear
Actual:
44 | 20 0.00
Average:
47 | 25 0.02
Clear
Actual:
48 | 20 0.00
Average:
46 | 24 0.02
Clear
Actual:
59 | 19 0.00
Average:
46 | 24 0.01
Rain
Actual:
49 | 33 0.02
Average:
45 | 24 0.02
Snow
Actual:
46 | 31 0.01
Average:
44 | 23 0.02
Snow
Actual:
43 | 24 0.13
Average:
44 | 23 0.01
Snow
Actual:
30 | 17 T
Average:
43 | 22 0.02
Clear
Actual:
27 | 7 0.00
Average:
43 | 22 0.02
Rain
Actual:
48 | 18 0.05
Average:
42 | 22 0.01
Snow
Actual:
30 | 5 0.30
Average:
42 | 21 0.02
Snow
Actual:
14 | 1 0.06
Average:
41 | 21 0.02
Partly Cloudy
Actual:
28 | 4 0.00
Average:
41 | 20 0.01
Scattered Clouds
Actual:
39 | 11 0.00
Average:
40 | 20 0.02
Scattered Clouds
Actual:
53 | 22 0.00
Average:
40 | 19 0.02
Clear
Actual:
58 | 38 0.00
Average:
39 | 19 0.01
Scattered Clouds
Actual:
53 | 31 0.00
Average:
38 | 19 0.02
Snow
Actual:
46 | 28 0.05
Average:
38 | 18 0.02
Scattered Clouds
Actual:
36 | 17 0.00
Average:
37 | 18 0.01
Clear
Actual:
56 | 24 0.00
Average:
37 | 17 0.02
Scattered Clouds
Actual:
52 | 32 0.00
Average:
36 | 17 0.02
Partly Cloudy
Actual:
40 | 30 0.00
Average:
36 | 16 0.01
Snow
Actual:
40 | 25 0.04
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

2011 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 43 34 24 29 22 17 75 58 41 30.60 30.37 30.20 10 9 1 21 7 24 T Snow
2 45 30 15 19 16 14 92 61 30 30.64 30.45 30.09 10 10 10 8 2 12 0.00  
3 53 38 23 16 13 10 65 42 19 30.16 29.92 29.68 10 10 10 12 3 15 0.00  
4 40 32 24 22 19 16 74 57 40 29.78 29.72 29.58 10 10 5 14 6 17 T Snow
5 36 30 24 30 25 12 100 75 50 29.91 29.68 29.59 10 4 1 17 6 23 0.11 Snow
6 36 25 13 17 13 9 80 59 38 30.14 30.00 29.91 10 10 10 21 6 26 0.00  
7 38 26 14 17 14 11 88 62 35 30.29 30.21 30.05 10 10 10 22 8 29 0.00  
8 62 45 28 21 19 16 69 51 33 30.48 30.30 30.09 10 10 10 23 6 31 0.00  
9 44 32 20 21 18 17 84 60 36 30.63 30.53 30.43 10 10 10 12 3 15 0.00  
10 48 34 20 21 18 16 88 61 34 30.41 30.20 30.01 10 10 10 8 2 10 0.00  
11 59 39 19 21 12 2 74 43 12 30.03 29.71 29.37 10 10 10 20 6 28 0.00  
12 49 41 33 34 20 13 70 45 19 29.65 29.51 29.30 10 10 10 36 14 46 0.02 Rain
13 46 39 31 30 23 18 69 53 36 29.63 29.52 29.38 10 9 0 33 10 45 0.01 Snow
14 43 34 24 30 27 16 100 73 45 29.88 29.58 29.46 10 5 0 33 10 43 0.13 Fog , Snow
15 30 24 17 21 14 6 81 68 54 30.36 30.10 29.79 10 7 4 29 10 45 T Snow
16 27 17 7 13 8 3 80 63 46 30.50 30.34 30.09 10 10 9 15 2 21 0.00  
17 48 33 18 34 22 10 67 55 42 30.05 29.73 29.51 10 10 2 28 11 37 0.05 Rain
18 30 18 5 19 7 -1 92 75 58 30.03 29.78 29.67 10 2 0 17 8 22 0.30 Fog , Snow
19 14 8 1 7 0 -6 91 74 57 30.18 29.97 29.79 10 7 1 10 3 14 0.06 Snow
20 28 16 4 15 9 3 88 72 55 30.15 30.09 29.89 10 10 7 6 1 7 0.00  
21 39 25 11 22 15 9 92 70 48 30.14 30.08 29.97 10 10 8 13 1 20 0.00  
22 53 38 22 28 24 17 74 56 38 30.06 29.94 29.79 10 10 10 26 11 36 0.00  
23 58 48 38 28 23 19 46 35 24 29.87 29.77 29.67 10 10 10 29 16 39 0.00  
24 53 42 31 29 26 21 78 57 35 29.79 29.73 29.63 10 10 10 14 5 18 0.00  
25 46 37 28 30 21 11 82 62 41 30.60 29.97 29.66 10 8 0 37 16 52 0.05 Fog , Rain , Snow
26 36 27 17 20 13 10 75 57 38 30.77 30.65 30.43 10 10 10 16 4 21 0.00  
27 56 40 24 25 20 16 69 47 24 30.51 30.24 30.05 10 10 10 18 4 23 0.00  
28 52 42 32 31 27 23 70 50 29 30.37 30.29 30.06 10 10 10 24 10 32 0.00  
29 40 35 30 28 26 25 82 71 59 30.37 30.25 30.00 10 10 10 12 3 14 0.00  
30 40 33 25 29 24 14 85 67 48 30.76 30.34 29.98 10 5 0 32 14 38 0.04 Fog , Snow