Weather History for Greybull, WY

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 59 °F 32 °F 9 °F
Mean Temperature 45 °F 21 °F -2 °F
Min Temperature 31 °F 9 °F -14 °F
Degree Days  
Heating Degree Days (base 65) 67 44 20 1367
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 35 °F 13 °F -20 °F
Precipitation  
Precipitation 0.09 in 0.01 in 0.00 in 0.13 in
Snowdepth - - - -
Wind  
Wind 33 mph 4 mph 0 mph
Gust Wind 44 mph 26 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.53 in 30.01 in 29.37 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 11, 2012 Rise Set
Actual Time 7:39 AM MST 4:32 PM MST
Civil Twilight 7:05 AM MST 5:05 PM MST
Nautical Twilight 6:29 AM MST 5:42 PM MST
Astronomical Twilight 5:53 AM MST 6:17 PM MST
Moon 5:35 AM MST (12/11) 3:15 PM MST (12/11)
Length of Visible Light 9h 59m
Length of Day
8h 53m
Waning Crescent, 4% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 0.13 Normal Month Total: 0.28
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
54 | 27 0.00
Average:
33 | 10 0.02
Scattered Clouds
Actual:
59 | 31 0.00
Average:
33 | 10 0.01
Clear
Actual:
48 | 27 0.00
Average:
32 | 9 0.02
Scattered Clouds
Actual:
46 | 21 0.00
Average:
32 | 9 0.01
Scattered Clouds
Actual:
58 | 26 0.00
Average:
31 | 9 0.01
Snow
Actual:
44 | 27 T
Average:
31 | 8 0.02
Partly Cloudy
Actual:
38 | 22 0.00
Average:
30 | 8 0.01
Snow
Actual:
34 | 13 T
Average:
30 | 8 0.01
Scattered Clouds
Actual:
20 | 4 0.00
Average:
30 | 7 0.01
Snow
Actual:
22 | 11 0.09
Average:
30 | 7 0.01
Snow
Actual:
25 | 7 T
Average:
29 | 7 0.00
Scattered Clouds
Actual:
44 | 15 0.00
Average:
29 | 7 0.01
Partly Cloudy
Actual:
35 | 9 0.00
Average:
29 | 6 0.01
Scattered Clouds
Actual:
37 | 11 0.00
Average:
29 | 6 0.00
Overcast
Actual:
33 | 21 T
Average:
28 | 6 0.01
Fog
Actual:
33 | 16 0.00
Average:
28 | 6 0.01
Scattered Clouds
Actual:
35 | 15 T
Average:
28 | 6 0.01
Clear
Actual:
33 | 9 0.00
Average:
28 | 6 0.01
Clear
Actual:
26 | -3 0.00
Average:
28 | 5 0.01
Clear
Actual:
29 | 0 0.00
Average:
28 | 5 0.01
Clear
Actual:
34 | 4 0.00
Average:
28 | 5 0.01
Clear
Actual:
34 | 2 0.00
Average:
28 | 5 0.00
Scattered Clouds
Actual:
39 | 16 0.00
Average:
28 | 5 0.01
Snow
Actual:
22 | 7 T
Average:
28 | 5 0.01
Snow
Actual:
14 | -7 T
Average:
28 | 5 0.00
Snow
Actual:
20 | -1 0.04
Average:
28 | 5 0.01
Snow
Actual:
21 | 1 T
Average:
28 | 5 0.01
Partly Cloudy
Actual:
19 | -7 T
Average:
28 | 5 0.00
Clear
Actual:
9 | -11 0.00
Average:
28 | 5 0.01
Clear
Actual:
16 | -9 0.00
Average:
28 | 5 0.00
Snow
Actual:
10 | -14 T
Average:
28 | 5 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

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 54 41 27 35 31 26 92 71 50 29.91 29.85 29.76 10 10 10 13 3 16 0.00  
2 59 45 31 33 29 27 82 57 31 29.82 29.58 29.37 10 10 10 31 12 38 0.00  
3 48 38 27 27 19 12 69 47 25 30.25 30.03 29.71 10 10 10 23 5 26 0.00  
4 46 34 21 23 20 17 84 62 40 30.30 30.20 30.06 10 10 10 10 3 12 0.00  
5 58 42 26 32 27 21 81 58 35 30.03 29.90 29.79 10 10 7 23 5 30 0.00  
6 44 36 27 30 23 19 92 68 43 30.04 29.93 29.83 10 8 1 22 8 26 T Snow
7 38 30 22 27 23 17 96 74 52 30.03 29.95 29.78 10 10 10 18 7 23 0.00  
8 34 24 13 23 16 4 88 68 47 30.25 29.89 29.68 10 7 1 33 15 44 T Snow
9 20 12 4 8 5 1 91 57 23 30.53 30.35 29.96 20 10 10 18 6 24 0.00  
10 22 17 11 18 14 8 100 84 67 30.15 30.03 29.92 10 5 0 10 3 13 0.09 Fog , Snow
11 25 16 7 18 12 5 92 85 77 30.12 29.91 29.75 10 7 0 12 2 13 T Fog , Snow
12 44 30 15 28 21 14 92 76 59 29.97 29.76 29.64 10 10 10 14 4 16 0.00  
13 35 22 9 22 13 7 100 81 61 30.06 29.96 29.89 10 7 1 8 1 10 0.00  
14 37 24 11 24 18 9 96 76 56 29.92 29.79 29.66 10 10 10 10 2 12 0.00  
15 33 27 21 29 25 21 92 84 75 29.87 29.78 29.64 10 8 4 7 2 8 T  
16 33 25 16 27 22 15 100 86 72 29.87 29.74 29.62 10 5 0 13 5 15 0.00 Fog
17 35 25 15 27 18 13 96 76 56 29.75 29.60 29.46 10 10 9 15 4 18 T  
18 33 21 9 17 9 2 96 65 33 29.98 29.84 29.69 10 10 10 20 5 24 0.00  
19 26 12 -3 6 2 -5 87 64 40 30.37 30.21 29.98 10 10 10 9 3 24 0.00  
20 29 15 0 18 3 -4 87 57 26 30.42 30.34 30.26 20 10 10 14 2 17 0.00  
21 34 19 4 28 8 1 83 64 45 30.29 30.20 30.11 20 10 10 8 2 9 0.00  
22 34 18 2 13 7 0 91 67 43 30.23 30.07 29.90 10 10 10 9 2 10 0.00  
23 39 28 16 15 12 9 74 54 34 30.04 29.97 29.86 10 10 10 15 4 - 0.00  
24 22 15 7 13 6 1 88 77 66 30.40 30.08 29.86 10 7 1 25 11 29 T Snow
25 14 4 -7 4 -1 -9 95 80 64 30.51 30.33 30.06 10 8 2 8 3 12 T Snow
26 20 10 -1 16 11 -3 92 83 73 30.16 29.86 29.68 10 5 1 12 2 13 0.04 Snow
27 21 11 1 14 8 -2 95 84 73 30.18 29.99 29.72 10 8 2 7 2 23 T Snow
28 19 6 -7 11 2 -11 95 81 67 30.38 30.25 30.07 10 8 5 6 1 8 T  
29 9 -1 -11 2 -5 -15 95 84 73 30.43 30.29 30.13 10 9 2 7 1 8 0.00  
30 16 4 -9 5 -3 -10 95 77 59 30.34 30.29 30.21 10 9 6 8 1 8 0.00  
31 10 -2 -14 3 -7 -20 91 80 69 30.42 30.31 30.07 10 9 2 7 1 7 T Snow