Weather History for Rock Springs, WY

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 50 °F 29 °F 8 °F
Mean Temperature 42 °F 22 °F -1 °F
Min Temperature 34 °F 14 °F -10 °F
Degree Days  
Heating Degree Days (base 65) 66 43 23 1348
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 34 °F 13 °F -13 °F
Precipitation  
Precipitation 0.03 in 0.00 in 0.00 in 0.08 in
Snowdepth - - - -
Wind  
Wind 46 mph 11 mph 0 mph
Gust Wind 58 mph 29 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.60 in 30.03 in 29.56 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 07, 2012 Rise Set
Actual Time 7:29 AM MST 4:45 PM MST
Civil Twilight 6:58 AM MST 5:17 PM MST
Nautical Twilight 6:23 AM MST 5:51 PM MST
Astronomical Twilight 5:50 AM MST 6:25 PM MST
Moon 12:48 AM MST (12/7) 12:48 PM MST (12/7)
Length of Visible Light 10h 18m
Length of Day
9h 16m
Last Quarter, 38% of the Moon is Illuminated
Dec 7
Last Quarter
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 0.08 Normal Month Total: 0.50
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
50 | 34 T
Average:
32 | 15 0.02
Snow
Actual:
50 | 33 T
Average:
32 | 14 0.01
Clear
Actual:
33 | 22 0.00
Average:
32 | 14 0.02
Partly Cloudy
Actual:
40 | 20 0.00
Average:
31 | 14 0.01
Rain
Actual:
42 | 27 T
Average:
31 | 14 0.02
Partly Cloudy
Actual:
42 | 30 0.00
Average:
31 | 13 0.02
Scattered Clouds
Actual:
35 | 25 0.00
Average:
30 | 13 0.02
Snow
Actual:
31 | 11 0.03
Average:
30 | 13 0.01
Snow
Actual:
16 | -1 T
Average:
30 | 13 0.02
Snow
Actual:
28 | 11 T
Average:
30 | 13 0.02
Snow
Actual:
32 | 19 T
Average:
30 | 12 0.02
Scattered Clouds
Actual:
41 | 21 0.00
Average:
30 | 12 0.01
Partly Cloudy
Actual:
38 | 27 0.00
Average:
29 | 12 0.02
Snow
Actual:
35 | 26 0.01
Average:
29 | 12 0.02
Snow
Actual:
29 | 21 T
Average:
29 | 12 0.01
Snow
Actual:
28 | 18 T
Average:
29 | 12 0.02
Snow
Actual:
40 | 21 0.01
Average:
29 | 12 0.01
Mostly Cloudy
Actual:
23 | 14 0.00
Average:
29 | 12 0.02
Scattered Clouds
Actual:
17 | 4 0.00
Average:
29 | 12 0.02
Clear
Actual:
23 | 3 0.00
Average:
29 | 12 0.01
Clear
Actual:
25 | -1 0.00
Average:
29 | 12 0.02
Clear
Actual:
24 | 1 0.00
Average:
29 | 12 0.01
Partly Cloudy
Actual:
32 | 11 0.00
Average:
29 | 12 0.02
Snow
Actual:
29 | 17 0.02
Average:
29 | 12 0.01
Snow
Actual:
19 | 4 T
Average:
29 | 12 0.02
Snow
Actual:
20 | 6 0.01
Average:
29 | 12 0.01
Snow
Actual:
20 | 12 T
Average:
29 | 12 0.02
Partly Cloudy
Actual:
22 | 7 0.00
Average:
29 | 12 0.01
Scattered Clouds
Actual:
13 | -2 0.00
Average:
30 | 12 0.02
Snow
Actual:
8 | -10 T
Average:
30 | 12 0.01
Fog
Actual:
10 | -9 0.00
Average:
30 | 12 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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 50 42 34 34 28 22 82 62 42 30.03 29.98 29.91 10 10 10 24 10 31 T  
2 50 42 33 32 28 23 64 52 39 29.93 29.82 29.63 10 8 1 41 15 56 T Rain , Snow
3 33 28 22 29 20 17 92 73 54 30.41 30.20 29.89 10 10 10 32 14 41 0.00  
4 40 30 20 28 21 13 77 63 48 30.45 30.38 30.23 10 10 10 20 6 23 0.00  
5 42 35 27 34 30 24 92 78 64 30.22 30.10 30.03 10 10 10 36 12 40 T Rain
6 42 36 30 31 26 21 89 70 50 30.06 29.98 29.86 10 10 10 26 13 33 0.00  
7 35 30 25 26 17 11 78 58 38 30.03 29.97 29.88 10 10 10 32 22 39 0.00  
8 31 21 11 25 15 -1 92 73 53 30.15 29.84 29.72 10 4 0 39 17 47 0.03 Fog , Snow
9 16 8 -1 7 1 -5 86 72 58 30.41 30.27 30.04 10 10 7 26 7 32 T Snow
10 28 20 11 18 12 3 84 71 58 30.29 30.09 29.90 10 9 2 37 20 46 T Snow
11 32 26 19 23 18 14 91 77 63 30.07 29.98 29.86 10 10 9 31 19 37 T Snow
12 41 31 21 21 16 13 71 56 40 29.94 29.84 29.75 10 10 10 26 11 32 0.00  
13 38 33 27 21 16 14 63 52 40 30.01 29.92 29.83 10 10 10 17 9 23 0.00  
14 35 31 26 27 21 13 92 68 43 29.81 29.69 29.56 10 7 1 14 7 17 0.01 Snow
15 29 25 21 27 23 17 92 84 75 29.83 29.77 29.70 10 9 2 18 11 21 T Snow
16 28 23 18 19 17 13 92 75 58 29.92 29.83 29.73 10 8 2 36 18 41 T Snow
17 40 31 21 27 21 11 92 71 50 29.86 29.72 29.59 10 8 1 46 20 58 0.01 Snow
18 23 19 14 19 10 2 92 70 47 29.89 29.84 29.75 10 10 8 16 8 22 0.00  
19 17 11 4 4 0 -6 76 64 51 30.48 30.18 29.86 10 10 10 26 13 31 0.00  
20 23 13 3 7 0 -6 76 60 44 30.60 30.52 30.45 10 10 10 23 6 25 0.00  
21 25 12 -1 6 0 -6 79 62 44 30.49 30.39 30.30 10 10 10 10 3 10 0.00  
22 24 13 1 6 3 -2 87 66 44 30.36 30.23 30.10 10 10 10 10 2 12 0.00  
23 32 22 11 17 14 3 77 63 49 30.19 30.09 29.89 10 10 10 25 10 30 0.00  
24 29 23 17 25 20 13 92 78 63 30.04 29.80 29.67 10 5 0 20 7 24 0.02 Fog , Snow
25 19 12 4 14 8 2 92 80 67 30.28 30.10 29.94 10 6 1 20 3 23 T Snow
26 20 13 6 16 11 2 92 80 67 30.10 29.79 29.58 10 6 1 12 5 14 0.01 Snow
27 20 16 12 16 12 9 92 83 73 30.08 29.79 29.62 10 4 1 17 8 18 T Snow
28 22 15 7 14 9 4 84 76 67 30.35 30.19 30.00 10 10 10 24 14 28 0.00  
29 13 6 -2 6 1 -5 95 83 70 30.43 30.32 30.24 10 10 10 16 5 18 0.00  
30 8 -1 -10 5 -5 -13 95 87 79 30.35 30.13 29.96 10 4 0 13 4 14 T Fog , Snow
31 10 1 -9 4 -5 -13 87 80 73 30.35 30.12 29.91 10 5 0 20 10 24 0.00 Fog