Weather History for Casper, WY

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 50 °F 33 °F 10 °F
Mean Temperature 36 °F 24 °F 2 °F
Min Temperature 29 °F 15 °F -7 °F
Degree Days  
Heating Degree Days (base 65) 63 41 29 1263
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 31 °F 14 °F -10 °F
Precipitation  
Precipitation 0.38 in 0.03 in 0.00 in 0.71 in
Snowdepth 3.0 in 1.0 in 0.0 in -
Wind  
Wind 40 mph 15 mph 0 mph
Gust Wind 53 mph 31 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.67 in 30.17 in 29.48 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 30, 2011 Rise Set
Actual Time 7:36 AM MST 4:40 PM MST
Civil Twilight 7:04 AM MST 5:12 PM MST
Nautical Twilight 6:28 AM MST 5:48 PM MST
Astronomical Twilight 5:54 AM MST 6:22 PM MST
Moon 10:47 AM MST (12/30) 11:28 PM MST (12/30)
Length of Visible Light 10h 08m
Length of Day
9h 03m
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 0.71 Normal Month Total: 0.49
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
27 | 9 0.07
Average:
37 | 16 0.02
Snow
Actual:
30 | 11 0.03
Average:
36 | 15 0.01
Snow
Actual:
22 | 6 T
Average:
36 | 15 0.02
Snow
Actual:
20 | 7 0.03
Average:
35 | 15 0.02
Snow
Actual:
10 | -7 T
Average:
35 | 15 0.02
Clear
Actual:
23 | 7 0.00
Average:
35 | 14 0.01
Scattered Clouds
Actual:
31 | 20 0.00
Average:
35 | 14 0.02
Fog
Actual:
27 | 13 0.00
Average:
34 | 14 0.01
Partly Cloudy
Actual:
31 | 19 0.00
Average:
34 | 14 0.02
Clear
Actual:
37 | 20 0.00
Average:
34 | 14 0.02
Clear
Actual:
38 | 17 0.00
Average:
34 | 13 0.01
Scattered Clouds
Actual:
35 | 8 0.00
Average:
34 | 13 0.02
Scattered Clouds
Actual:
39 | 11 0.00
Average:
34 | 13 0.01
Partly Cloudy
Actual:
35 | 18 T
Average:
34 | 13 0.02
Scattered Clouds
Actual:
35 | 18 0.00
Average:
34 | 13 0.01
Clear
Actual:
32 | 15 0.00
Average:
33 | 13 0.02
Clear
Actual:
38 | 26 0.00
Average:
33 | 13 0.01
Clear
Actual:
45 | 18 0.00
Average:
33 | 13 0.02
Fog
Actual:
32 | 15 T
Average:
33 | 13 0.01
Clear
Actual:
35 | 15 0.00
Average:
34 | 13 0.02
Snow
Actual:
30 | 22 0.20
Average:
34 | 13 0.01
Fog
Actual:
22 | 6 T
Average:
34 | 13 0.02
Clear
Actual:
26 | 14 0.00
Average:
34 | 13 0.02
Clear
Actual:
30 | 18 0.00
Average:
34 | 13 0.01
Clear
Actual:
38 | 19 0.00
Average:
34 | 13 0.02
Clear
Actual:
37 | 17 0.00
Average:
34 | 13 0.01
Scattered Clouds
Actual:
37 | 16 0.00
Average:
34 | 13 0.02
Scattered Clouds
Actual:
42 | 29 0.00
Average:
34 | 13 0.01
Snow
Actual:
48 | 23 T
Average:
34 | 13 0.02
Clear
Actual:
50 | 22 0.00
Average:
34 | 13 0.02
Snow
Actual:
43 | 10 0.38
Average:
35 | 14 0.01
 

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 27 18 9 22 15 5 84 76 67 30.67 30.44 30.19 10 4 1 24 14 38 0.07 Snow
2 30 21 11 25 15 5 88 69 50 30.20 30.03 29.89 10 7 2 28 19 48 0.03 Snow
3 22 14 6 16 9 1 84 73 61 30.30 30.20 30.07 10 9 3 13 7 - T Snow
4 20 14 7 15 8 0 84 73 61 30.59 30.27 30.11 10 6 0 27 10 31 0.03 Snow
5 10 2 -7 1 -4 -10 82 72 62 30.62 30.49 30.20 10 10 5 18 11 - T Snow
6 23 15 7 9 4 -4 63 57 51 30.32 30.26 30.19 10 10 10 31 24 41 0.00  
7 31 26 20 16 12 8 74 62 49 30.29 30.20 30.06 10 10 10 31 19 41 0.00  
8 27 20 13 18 15 11 92 80 68 30.29 30.19 30.08 10 7 0 18 7 23 0.00 Fog
9 31 25 19 14 12 10 73 60 47 30.41 30.33 30.19 10 10 10 20 13 28 0.00  
10 37 29 20 19 15 12 67 56 44 30.39 30.25 30.06 10 10 10 25 18 40 0.00  
11 38 28 17 19 16 12 73 60 47 30.03 29.98 29.90 10 10 10 24 14 36 0.00  
12 35 22 8 18 12 4 88 68 47 30.18 30.10 29.97 10 10 10 8 1 9 0.00  
13 39 25 11 26 19 6 88 70 52 30.10 29.96 29.83 10 10 10 20 10 28 0.00  
14 35 27 18 21 18 13 84 70 56 30.20 29.98 29.78 10 10 10 22 13 30 T  
15 35 27 18 19 16 12 84 66 47 30.30 30.21 30.08 10 10 10 23 14 29 0.00  
16 32 24 15 15 14 10 77 63 49 30.45 30.39 30.22 10 10 10 24 14 31 0.00  
17 38 32 26 18 16 13 57 51 44 30.45 30.36 30.21 10 10 10 25 18 36 0.00  
18 45 32 18 18 16 13 77 55 33 30.17 30.02 29.89 10 10 10 30 17 39 0.00  
19 32 24 15 25 19 11 92 73 53 30.35 30.21 30.05 10 8 0 16 10 23 T Fog
20 35 25 15 18 16 13 84 66 47 30.19 29.97 29.78 10 10 10 30 19 43 0.00  
21 30 26 22 25 21 17 92 75 58 30.30 29.93 29.76 10 3 0 31 17 39 0.20 Fog , Snow
22 22 14 6 18 9 3 92 76 59 30.51 30.38 30.18 10 9 0 20 12 30 T Fog
23 26 20 14 10 7 2 59 55 50 30.48 30.43 30.30 10 10 10 31 24 40 0.00  
24 30 24 18 10 7 4 50 48 45 30.58 30.51 30.37 10 10 10 25 19 38 0.00  
25 38 29 19 19 14 7 55 50 44 30.57 30.33 29.96 10 10 10 30 18 44 0.00  
26 37 27 17 18 12 8 68 53 38 30.30 30.13 29.94 10 10 10 28 15 44 0.00  
27 37 27 16 19 15 10 67 55 43 30.13 30.08 29.98 10 10 10 28 17 37 0.00  
28 42 36 29 30 22 16 70 58 45 30.08 30.01 29.88 10 10 10 32 24 44 0.00  
29 48 36 23 31 26 15 75 61 46 29.97 29.79 29.59 10 9 1 40 19 53 T Snow
30 50 36 22 29 23 14 68 57 45 29.98 29.77 29.51 10 10 10 30 20 44 0.00  
31 43 27 10 27 18 3 92 70 47 30.45 29.96 29.48 10 7 0 36 14 48 0.38 Fog , Snow