Weather History for Ellsworth AFB, SD

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 61 °F 39 °F 18 °F
Mean Temperature 46 °F 29 °F 10 °F
Min Temperature 36 °F 19 °F 3 °F
Degree Days  
Heating Degree Days (base 65) 54 36 18 1102
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 40 °F 19 °F -5 °F
Precipitation  
Precipitation 0.07 in 0.01 in 0.00 in 0.27 in
Snowdepth 1.0 in 1.0 in 1.0 in -
Wind  
Wind 41 mph 10 mph 0 mph
Gust Wind 56 mph 31 mph 22 mph
Sea Level Pressure  
Sea Level Pressure 30.77 in 30.12 in 29.39 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 10, 2011 Rise Set
Actual Time 7:16 AM MST 4:13 PM MST
Civil Twilight 6:43 AM MST 4:46 PM MST
Nautical Twilight 6:07 AM MST 5:23 PM MST
Astronomical Twilight 5:31 AM MST 5:58 PM MST
Moon 4:29 PM MST (12/10) 7:18 AM MST (12/10)
Length of Visible Light 10h 03m
Length of Day
8h 57m
Full, 100% of the Moon is Illuminated
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter
Jan 9
Full

Weather History Calendar

Precipitation Actual month total 0.27 Average Month Total: 0.31
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
28 | 16 0.01
Average:
40 | 20 0.01
Scattered Clouds
Actual:
38 | 18 0.00
Average:
40 | 20 0.01
Scattered Clouds
Actual:
29 | 13 0.00
Average:
40 | 19 0.01
Snow
Actual:
26 | 12 0.00
Average:
40 | 19 0.01
Scattered Clouds
Actual:
18 | 3 0.01
Average:
40 | 19 0.01
Scattered Clouds
Actual:
39 | 4 0.00
Average:
40 | 19 0.01
Snow
Actual:
37 | 26 0.00
Average:
40 | 19 0.01
Snow
Actual:
28 | 15 0.02
Average:
40 | 19 0.01
Snow
Actual:
23 | 8 0.02
Average:
40 | 19 0.01
Clear
Actual:
47 | 19 0.01
Average:
40 | 18 0.01
Clear
Actual:
45 | 26 0.00
Average:
40 | 18 0.01
Fog
Actual:
25 | 19 0.00
Average:
39 | 18 0.01
Snow
Actual:
30 | 18 0.00
Average:
39 | 17 0.01
Fog
Actual:
39 | 17 0.00
Average:
38 | 17 0.01
Scattered Clouds
Actual:
36 | 21 0.00
Average:
37 | 16 0.01
Scattered Clouds
Actual:
42 | 21 0.00
Average:
36 | 15 0.01
Clear
Actual:
52 | 22 0.00
Average:
35 | 14 0.01
Scattered Clouds
Actual:
61 | 32 0.00
Average:
35 | 14 0.01
Partly Cloudy
Actual:
34 | 18 0.00
Average:
34 | 14 0.01
Scattered Clouds
Actual:
49 | 16 0.00
Average:
34 | 14 0.01
Snow
Actual:
39 | 19 0.02
Average:
34 | 14 0.01
Snow
Actual:
27 | 7 0.00
Average:
34 | 14 0.01
Clear
Actual:
41 | 18 0.01
Average:
34 | 14 0.01
Scattered Clouds
Actual:
45 | 24 0.00
Average:
34 | 14 0.01
Clear
Actual:
48 | 28 0.00
Average:
35 | 14 0.01
Scattered Clouds
Actual:
45 | 23 0.00
Average:
35 | 14 0.01
Scattered Clouds
Actual:
38 | 21 0.05
Average:
35 | 14 0.01
Scattered Clouds
Actual:
60 | 24 0.00
Average:
35 | 14 0.01
Rain
Actual:
50 | 36 0.05
Average:
35 | 14 0.01
Scattered Clouds
Actual:
46 | 27 0.00
Average:
35 | 14 0.01
Snow
Actual:
51 | 28 0.07
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 28 22 16 28 19 12 100 85 55 30.77 30.54 30.24 10 7 2 24 16 32 0.01 Snow
2 38 28 18 27 19 11 79 68 41 30.18 29.99 29.88 10 10 10 22 9 - 0.00  
3 29 21 13 20 14 5 72 65 54 30.22 30.16 30.11 10 10 10 23 15 32 0.00  
4 26 20 12 21 15 2 93 77 60 30.59 30.27 30.06 10 6 0 41 23 51 0.00 Fog , Snow
5 18 10 3 4 1 -3 77 64 52 30.65 30.55 30.36 10 10 10 18 8 - 0.01  
6 39 22 4 23 4 -5 72 50 28 30.33 30.13 30.04 10 10 10 18 5 - 0.00  
7 37 32 26 28 25 19 100 78 57 30.21 30.17 30.05 10 10 8 21 10 - 0.00 Snow
8 28 22 15 27 17 12 100 85 66 30.34 30.27 30.10 10 8 2 20 8 26 0.02 Snow
9 23 16 8 19 12 6 100 90 76 30.43 30.36 30.22 10 8 2 12 5 - 0.02 Snow
10 47 33 19 32 21 14 77 58 44 30.31 30.15 29.92 10 10 10 10 7 - 0.01  
11 45 36 26 25 20 14 81 54 31 30.04 29.92 29.86 10 10 10 20 9 - 0.00  
12 25 22 19 24 21 19 100 98 86 30.43 30.22 30.06 10 3 0 9 6 - 0.00 Fog
13 30 24 18 30 23 18 100 99 93 30.22 30.06 29.89 10 3 0 8 5 - 0.00 Fog , Snow
14 39 28 17 35 21 16 100 86 54 30.13 29.90 29.72 10 5 0 34 7 43 0.00 Fog
15 36 29 21 17 15 14 74 59 41 30.29 30.25 30.15 10 10 10 15 9 - 0.00  
16 42 32 21 25 20 16 85 68 44 30.46 30.33 30.24 10 10 10 16 9 - 0.00  
17 52 37 22 28 23 16 79 61 38 30.33 30.23 30.04 10 10 10 10 5 - 0.00  
18 61 46 32 29 25 21 88 57 22 30.09 29.95 29.76 10 10 10 26 9 31 0.00  
19 34 28 18 28 21 14 87 73 46 30.38 30.26 30.11 10 10 10 17 12 - 0.00  
20 49 32 16 27 20 13 84 61 33 30.14 29.86 29.68 10 10 10 10 5 - 0.00  
21 39 30 19 32 30 16 100 95 59 30.37 30.04 29.67 10 8 0 28 15 33 0.02 Rain , Snow
22 27 17 7 19 11 3 87 76 59 30.51 30.42 30.28 10 10 10 18 11 - 0.00 Snow
23 41 30 18 27 17 8 82 59 41 30.29 30.25 30.18 10 10 10 13 7 - 0.01  
24 45 34 24 25 18 12 65 52 36 30.42 30.35 30.27 10 10 10 20 9 26 0.00  
25 48 38 28 28 24 21 75 59 46 30.46 30.23 29.75 10 10 10 21 11 - 0.00  
26 45 34 23 26 19 15 72 49 30 30.17 29.99 29.76 10 10 10 34 14 44 0.00  
27 38 30 21 24 18 13 78 64 49 30.17 30.04 29.95 10 10 10 12 6 - 0.05  
28 60 42 24 28 24 19 79 51 30 29.96 29.82 29.68 10 10 10 22 8 31 0.00  
29 50 43 36 40 30 18 93 64 38 29.76 29.61 29.51 10 10 3 39 13 56 0.05 Rain
30 46 36 27 27 21 15 70 51 29 29.88 29.72 29.44 10 10 10 24 13 30 0.00  
31 51 40 28 37 33 20 100 89 43 30.34 29.72 29.39 10 9 2 34 19 46 0.07 Rain , Snow