Weather History for Greybull, WY

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 55 °F 32 °F 18 °F
Mean Temperature 36 °F 20 °F 6 °F
Min Temperature 24 °F 8 °F -7 °F
Degree Days  
Heating Degree Days (base 65) 60 45 29 1406
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 45 °F 12 °F -11 °F
Precipitation  
Precipitation 0.07 in 0.00 in 0.00 in 0.11 in
Snowdepth - - - -
Wind  
Wind 40 mph 4 mph 0 mph
Gust Wind 55 mph 31 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.74 in 30.25 in 29.52 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 07, 2011 Rise Set
Actual Time 7:34 AM MST 4:32 PM MST
Civil Twilight 7:01 AM MST 5:05 PM MST
Nautical Twilight 6:25 AM MST 5:42 PM MST
Astronomical Twilight 5:49 AM MST 6:17 PM MST
Moon 2:37 PM MST (12/7) 4:50 AM MST (12/7)
Length of Visible Light 10h 03m
Length of Day
8h 57m
Waxing Gibbous, 93% of the Moon is Illuminated
Dec 7
Waxing Gibbous
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter

Weather History Calendar

Precipitation Actual month total 0.11 Average Month Total: 0.23
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
28 | 17 0.00
Average:
40 | 13 0.02
Snow
Actual:
30 | 12 0.00
Average:
41 | 14 0.01
Scattered Clouds
Actual:
28 | 12 0.00
Average:
36 | 13 0.00
Snow
Actual:
24 | 1 0.07
Average:
38 | 10 0.02
Clear
Actual:
18 | -7 0.00
Average:
36 | 11 0.00
Clear
Actual:
26 | 1 0.00
Average:
37 | 10 0.00
Clear
Actual:
27 | 1 0.00
Average:
37 | 13 0.00
Partly Cloudy
Actual:
26 | 9 0.00
Average:
39 | 12 0.00
Partly Cloudy
Actual:
30 | 5 0.00
Average:
39 | 14 0.00
Clear
Actual:
32 | 3 0.00
Average:
37 | 13 0.00
Clear
Actual:
30 | 5 0.00
Average:
35 | 8 0.05
Partly Cloudy
Actual:
23 | 8 0.00
Average:
36 | 11 0.03
Fog
Actual:
19 | 8 0.00
Average:
36 | 10 0.01
Snow
Actual:
24 | 3 0.00
Average:
34 | 6 0.03
Fog
Actual:
25 | 8 0.00
Average:
33 | 8 0.00
Scattered Clouds
Actual:
30 | 7 0.00
Average:
31 | 6 0.00
Clear
Actual:
35 | 5 0.00
Average:
32 | 6 0.00
Scattered Clouds
Actual:
37 | 7 0.00
Average:
32 | 4 0.00
Snow
Actual:
28 | 3 0.02
Average:
23 | 1 0.00
Snow
Actual:
55 | 3 0.00
Average:
21 | -2 0.00
Partly Cloudy
Actual:
32 | 21 0.00
Average:
20 | 0 0.00
Scattered Clouds
Actual:
46 | 7 0.00
Average:
20 | -2 0.00
Clear
Actual:
27 | 0 0.00
Average:
23 | 0 0.00
Clear
Actual:
27 | 0 0.00
Average:
26 | 0 0.01
Clear
Actual:
36 | 3 0.00
Average:
25 | 0 0.02
Clear
Actual:
41 | 6 0.00
Average:
26 | 0 0.01
Scattered Clouds
Actual:
35 | 8 0.00
Average:
30 | 0 0.00
Scattered Clouds
Actual:
39 | 19 0.00
Average:
28 | 1 0.00
Rain
Actual:
46 | 24 0.01
Average:
26 | 3 0.00
Scattered Clouds
Actual:
46 | 21 0.00
Average:
29 | 4 0.01
Snow
Actual:
37 | 18 0.01
Average:
26 | 1 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 17 18 15 10 82 73 61 30.74 30.57 30.30 10 10 10 32 16 46 0.00  
2 30 21 12 22 14 9 84 68 50 30.27 30.10 29.88 10 10 2 22 6 31 0.00 Snow
3 28 20 12 17 13 10 88 70 47 30.34 30.26 30.18 10 10 10 14 9 - 0.00  
4 24 14 1 19 14 -5 100 84 52 30.69 30.25 30.07 10 4 1 36 5 45 0.07 Snow
5 18 6 -7 4 -2 -11 87 76 54 30.68 30.59 30.44 10 10 10 7 3 - 0.00  
6 26 14 1 8 2 -4 84 70 46 30.41 30.35 30.25 10 10 10 7 2 - 0.00  
7 27 14 1 13 6 -2 92 76 55 30.42 30.34 30.27 10 10 10 6 1 - 0.00  
8 26 18 9 17 11 6 88 82 69 30.43 30.32 30.19 10 10 10 7 3 - 0.00  
9 30 18 5 17 11 2 92 80 56 30.52 30.45 30.35 10 10 9 7 1 - 0.00  
10 32 18 3 17 9 -1 88 77 54 30.50 30.35 30.14 10 10 9 5 1 - 0.00  
11 30 18 5 16 9 1 87 78 54 30.13 30.09 29.94 10 10 10 6 1 - 0.00  
12 23 16 8 18 15 5 93 86 80 30.27 30.16 30.03 10 9 5 8 3 - 0.00  
13 19 14 8 18 14 3 100 92 79 30.16 29.97 29.82 8 2 0 8 6 - 0.00 Fog
14 24 14 3 21 13 1 100 91 79 30.33 30.07 29.81 10 5 1 7 1 - 0.00 Snow
15 25 16 8 21 11 5 100 90 85 30.42 30.27 30.13 10 6 0 7 2 - 0.00 Fog
16 30 18 7 20 12 4 92 83 66 30.57 30.47 30.26 10 10 6 5 1 - 0.00  
17 35 20 5 20 11 1 92 76 52 30.57 30.47 30.30 10 10 10 7 1 - 0.00  
18 37 22 7 22 14 4 92 79 52 30.26 30.15 30.01 10 10 10 10 3 - 0.00  
19 28 16 3 25 19 1 96 90 80 30.40 30.24 30.12 10 5 0 13 5 - 0.02 Fog , Snow
20 55 29 3 45 10 0 95 89 67 30.28 30.07 29.94 15 5 0 7 1 - 0.00 Fog , Snow
21 32 26 21 24 21 15 92 82 69 30.39 30.04 29.78 10 9 7 31 9 43 0.00  
22 46 26 7 37 12 5 92 85 66 30.54 30.46 30.17 20 10 10 13 5 - 0.00  
23 27 14 0 12 5 -4 88 76 51 30.62 30.55 30.46 10 10 10 7 1 - 0.00  
24 27 14 0 13 5 -4 88 78 53 30.69 30.63 30.56 10 10 10 7 1 - 0.00  
25 36 20 3 20 10 1 88 76 46 30.66 30.45 30.10 10 10 10 6 3 - 0.00  
26 41 24 6 18 13 4 92 71 36 30.35 30.22 30.05 10 10 10 8 4 - 0.00  
27 35 22 8 18 13 5 88 73 46 30.22 30.19 30.13 10 10 10 8 2 - 0.00  
28 39 29 19 26 20 15 81 68 55 30.14 30.04 29.90 10 10 10 10 4 17 0.00  
29 46 36 24 34 24 16 93 70 34 30.03 29.84 29.69 10 10 3 28 7 50 0.01 Rain
30 46 34 21 29 21 15 85 68 47 29.99 29.77 29.58 10 10 10 9 3 - 0.00  
31 37 28 18 32 20 10 96 63 39 30.47 30.00 29.52 10 10 5 40 17 55 0.01 Rain , Snow