Weather History for Bozeman, MT

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 56 °F 35 °F 18 °F
Mean Temperature 45 °F 22 °F 4 °F
Min Temperature 36 °F 9 °F -11 °F
Degree Days  
Heating Degree Days (base 65) 61 43 20 1326
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 37 °F 16 °F -15 °F
Precipitation  
Precipitation 0.18 in 0.02 in 0.00 in 0.40 in
Snowdepth 2.0 in 0.1 in 0.0 in -
Wind  
Wind 47 mph 5 mph 0 mph
Gust Wind 122 mph 26 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.79 in 30.25 in 29.49 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 30, 2011 Rise Set
Actual Time 8:05 AM MST 4:48 PM MST
Civil Twilight 7:31 AM MST 5:23 PM MST
Nautical Twilight 6:53 AM MST 6:00 PM MST
Astronomical Twilight 6:17 AM MST 6:37 PM MST
Moon 11:06 AM MST (12/30) 11:50 PM MST (12/30)
Length of Visible Light 9h 51m
Length of Day
8h 43m
Waxing Crescent, 36% of the Moon is Illuminated
Dec 30
Waxing Crescent
Dec 31
First Quarter
Jan 9
Full
Jan 16
Last Quarter
Jan 23
New

Weather History Calendar

Precipitation Actual month total 0.40 Normal Month Total: 0.51
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
34 | 12 0.00
Average:
36 | 13 0.02
Snow
Actual:
36 | 12 T
Average:
36 | 12 0.02
Snow
Actual:
25 | 9 T
Average:
35 | 12 0.02
Snow
Actual:
24 | 1 0.07
Average:
35 | 11 0.02
Clear
Actual:
18 | -11 T
Average:
34 | 11 0.02
Scattered Clouds
Actual:
28 | -4 0.00
Average:
34 | 11 0.02
Partly Cloudy
Actual:
31 | 5 0.00
Average:
34 | 10 0.02
Overcast
Actual:
28 | 16 0.00
Average:
34 | 10 0.02
Scattered Clouds
Actual:
36 | 5 0.00
Average:
33 | 10 0.01
Clear
Actual:
37 | 2 0.00
Average:
33 | 10 0.02
Scattered Clouds
Actual:
34 | 8 0.00
Average:
33 | 9 0.02
Snow
Actual:
25 | 8 T
Average:
33 | 9 0.01
Snow
Actual:
24 | 10 T
Average:
33 | 9 0.02
Snow
Actual:
36 | 20 T
Average:
33 | 9 0.01
Partly Cloudy
Actual:
32 | 10 0.00
Average:
32 | 9 0.02
Partly Cloudy
Actual:
38 | 12 0.00
Average:
32 | 9 0.01
Scattered Clouds
Actual:
41 | 14 0.00
Average:
32 | 8 0.02
Snow
Actual:
47 | 9 T
Average:
32 | 8 0.02
Snow
Actual:
32 | 7 0.11
Average:
32 | 8 0.01
Partly Cloudy
Actual:
38 | 2 0.00
Average:
32 | 8 0.02
Snow
Actual:
34 | 6 T
Average:
33 | 8 0.01
Clear
Actual:
22 | -3 0.00
Average:
33 | 8 0.01
Clear
Actual:
25 | -5 0.00
Average:
33 | 8 0.02
Partly Cloudy
Actual:
37 | 2 0.00
Average:
33 | 8 0.01
Scattered Clouds
Actual:
40 | 8 0.00
Average:
33 | 8 0.02
Partly Cloudy
Actual:
39 | 12 0.00
Average:
33 | 8 0.01
Partly Cloudy
Actual:
43 | 14 0.00
Average:
33 | 8 0.02
Partly Cloudy
Actual:
50 | 36 0.00
Average:
33 | 9 0.01
Partly Cloudy
Actual:
50 | 31 T
Average:
34 | 9 0.02
Snow
Actual:
56 | 33 0.18
Average:
34 | 9 0.01
Snow
Actual:
33 | 11 0.04
Average:
34 | 9 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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 34 23 12 18 13 10 88 63 38 30.79 30.57 30.17 10 10 10 17 4 21 0.00  
2 36 24 12 23 17 10 88 69 49 30.35 30.09 29.88 10 8 1 23 7 28 T Snow
3 25 17 9 21 16 7 96 79 62 30.39 30.27 30.12 10 9 1 9 4 12 T Snow
4 24 13 1 22 15 -3 96 71 45 30.70 30.33 30.12 10 6 1 24 7 29 0.07 Snow
5 18 4 -11 2 -4 -15 87 68 49 30.69 30.57 30.26 10 10 8 13 3 14 T  
6 28 12 -4 11 3 -7 87 67 46 30.54 30.45 30.20 10 10 6 9 2 10 0.00  
7 31 18 5 20 13 2 88 76 63 30.44 30.32 30.12 10 10 8 9 2 10 0.00  
8 28 22 16 20 17 12 92 83 74 30.39 30.29 30.13 10 8 2 10 2 13 0.00  
9 36 21 5 17 10 3 91 66 40 30.54 30.45 30.32 10 10 10 10 4 10 0.00  
10 37 20 2 19 10 0 86 65 44 30.50 30.28 30.09 10 10 9 10 2 10 0.00  
11 34 21 8 19 11 3 84 69 54 30.16 30.08 29.89 10 10 8 9 2 10 0.00  
12 25 17 8 18 14 6 92 83 74 30.27 30.17 29.98 10 10 7 7 1 8 T Snow
13 24 17 10 18 15 8 92 85 77 30.15 30.04 29.87 10 7 1 14 2 15 T Snow
14 36 28 20 27 24 17 88 76 64 30.21 30.10 29.88 10 9 5 10 4 12 T Snow
15 32 21 10 24 17 8 92 78 63 30.41 30.26 30.06 10 10 10 9 2 10 0.00  
16 38 25 12 25 20 9 84 68 52 30.53 30.45 30.32 10 10 10 24 3 26 0.00  
17 41 28 14 24 20 14 88 71 54 30.50 30.40 30.25 10 10 8 9 2 10 0.00  
18 47 28 9 29 21 8 92 66 40 30.22 30.11 29.95 10 9 2 13 4 13 T Snow
19 32 20 7 30 21 5 100 91 82 30.37 30.22 30.11 10 4 0 15 4 17 0.11 Fog , Snow
20 38 20 2 27 19 1 92 78 64 30.32 30.11 29.90 10 10 9 16 3 20 0.00  
21 34 20 6 25 19 5 85 74 63 30.56 30.16 29.80 10 10 4 24 9 28 T Snow
22 22 10 -3 12 3 -5 96 79 62 30.66 30.59 30.36 10 10 9 12 2 115 0.00  
23 25 10 -5 13 4 -7 86 73 60 30.72 30.59 30.36 10 10 6 7 2 8 0.00  
24 37 20 2 23 14 -2 95 73 51 30.71 30.64 30.44 10 10 7 13 2 122 0.00  
25 40 24 8 21 16 7 92 65 37 30.60 30.33 30.05 10 10 9 21 3 33 0.00  
26 39 26 12 19 14 7 80 58 35 30.33 30.21 30.06 10 10 10 31 7 38 0.00  
27 43 29 14 24 20 11 92 69 45 30.25 30.14 30.00 10 10 10 22 8 30 0.00  
28 50 43 36 33 28 21 76 61 45 29.96 29.89 29.72 10 10 10 29 12 41 0.00  
29 50 41 31 34 23 14 85 58 30 29.99 29.79 29.59 10 10 10 47 15 60 T  
30 56 45 33 37 30 19 100 69 38 29.86 29.64 29.49 10 8 2 28 8 37 0.18 Rain , Snow
31 33 22 11 31 19 7 96 70 43 30.56 30.07 29.62 10 8 1 25 10 33 0.04 Snow