Weather History for Rock Springs, WY

Change the Weather History Date:

Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 82 °F 75 °F 59 °F
Mean Temperature 67 °F 61 °F 52 °F
Min Temperature 55 °F 46 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 13 4 0 128
Cooling Degree Days (base 65) 2 0 0 6
Growing Degree Days (base 50) 18 11 0 326
Dew Point  
Dew Point 52 °F 27 °F 4 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 30 mph 7 mph 0 mph
Gust Wind 45 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.50 in 30.08 in 29.85 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 26, 2012 Rise Set
Actual Time 7:08 AM MDT 7:05 PM MDT
Civil Twilight 6:40 AM MDT 7:33 PM MDT
Nautical Twilight 6:08 AM MDT 8:05 PM MDT
Astronomical Twilight 5:35 AM MDT 8:38 PM MDT
Moon 5:08 PM MDT (9/26) 3:35 AM MDT (9/26)
Length of Visible Light 12h 52m
Length of Day
11h 57m
Waxing Gibbous, 88% of the Moon is Illuminated
Sep 26
Waxing Gibbous
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter

Weather History Calendar

Precipitation Actual month total 0.00 Normal Month Total: 0.92
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
74 | 52 0.00
Average:
77 | 48 0.03
Scattered Clouds
Actual:
77 | 46 0.00
Average:
76 | 48 0.02
Clear
Actual:
81 | 50 0.00
Average:
76 | 48 0.03
Clear
Actual:
82 | 50 0.00
Average:
75 | 47 0.03
Clear
Actual:
82 | 46 0.00
Average:
75 | 47 0.02
Scattered Clouds
Actual:
82 | 51 T
Average:
75 | 46 0.03
Scattered Clouds
Actual:
75 | 46 0.00
Average:
74 | 46 0.03
Clear
Actual:
76 | 47 0.00
Average:
74 | 46 0.03
Clear
Actual:
82 | 46 0.00
Average:
73 | 45 0.03
Rain
Actual:
79 | 55 T
Average:
73 | 45 0.04
Scattered Clouds
Actual:
74 | 50 T
Average:
72 | 45 0.03
Clear
Actual:
73 | 43 0.00
Average:
72 | 44 0.03
Clear
Actual:
74 | 40 0.00
Average:
72 | 44 0.03
Clear
Actual:
80 | 40 0.00
Average:
71 | 43 0.03
Clear
Actual:
81 | 47 0.00
Average:
71 | 43 0.03
Scattered Clouds
Actual:
78 | 48 0.00
Average:
70 | 43 0.03
Clear
Actual:
70 | 41 T
Average:
70 | 42 0.03
Clear
Actual:
75 | 44 0.00
Average:
69 | 42 0.03
Clear
Actual:
76 | 46 0.00
Average:
69 | 41 0.03
Clear
Actual:
77 | 47 0.00
Average:
68 | 41 0.03
Clear
Actual:
77 | 47 0.00
Average:
68 | 41 0.04
Clear
Actual:
79 | 47 0.00
Average:
67 | 40 0.03
Scattered Clouds
Actual:
78 | 49 0.00
Average:
67 | 40 0.03
Rain
Actual:
70 | 50 T
Average:
66 | 39 0.04
Rain
Actual:
66 | 43 T
Average:
66 | 39 0.03
Rain
Actual:
59 | 45 T
Average:
66 | 39 0.03
Fog
Actual:
66 | 39 0.00
Average:
65 | 38 0.03
Scattered Clouds
Actual:
71 | 44 0.00
Average:
65 | 38 0.04
Scattered Clouds
Actual:
72 | 43 0.00
Average:
64 | 38 0.03
Clear
Actual:
73 | 43 0.00
Average:
64 | 37 0.03
 

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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 74 63 52 52 47 39 89 59 29 30.29 30.05 29.92 10 9 2 22 10 41 0.00 Rain
2 77 62 46 46 40 29 86 52 18 30.29 30.09 30.00 10 10 10 16 6 23 0.00  
3 81 66 50 39 32 23 59 36 12 30.13 30.05 29.98 10 10 10 22 9 33 0.00  
4 82 66 50 27 23 16 32 21 9 30.24 30.02 29.93 10 10 10 29 13 45 0.00  
5 82 64 46 24 19 11 36 22 8 30.07 29.99 29.91 10 10 10 30 12 40 0.00  
6 82 67 51 38 25 19 54 32 10 30.17 29.97 29.85 10 10 10 27 10 40 T  
7 75 61 46 40 32 21 71 44 16 30.25 30.16 30.05 10 10 10 12 5 16 0.00  
8 76 62 47 27 23 18 39 26 13 30.30 30.21 30.12 10 10 10 10 4 - 0.00  
9 82 64 46 27 20 16 28 19 9 30.13 30.03 29.92 10 10 10 18 7 31 0.00  
10 79 67 55 50 36 24 57 39 20 29.95 29.90 29.86 10 10 10 24 9 36 T Rain
11 74 62 50 44 38 16 61 40 19 30.00 29.91 29.85 10 10 10 22 11 31 T  
12 73 58 43 26 18 5 45 26 7 30.29 30.13 30.01 10 10 10 20 10 30 0.00  
13 74 57 40 21 15 11 38 24 9 30.47 30.35 30.29 10 10 8 9 3 - 0.00  
14 80 60 40 16 11 5 27 17 6 30.50 30.26 30.15 10 10 10 12 5 20 0.00  
15 81 64 47 19 13 4 24 15 5 30.36 30.13 30.04 10 10 10 18 10 31 0.00  
16 78 63 48 30 18 12 38 23 8 30.27 30.03 29.93 10 10 10 22 10 37 0.00  
17 70 56 41 36 27 17 79 47 15 30.24 30.06 30.01 10 10 8 14 8 23 T  
18 75 60 44 25 22 17 40 26 12 30.33 30.11 30.03 10 7 5 20 12 31 0.00  
19 76 61 46 22 19 14 34 24 13 30.17 30.10 30.05 10 9 7 16 9 28 0.00  
20 77 62 47 22 17 15 26 18 10 30.29 30.09 30.02 10 9 5 14 9 23 0.00  
21 77 62 47 22 19 15 31 21 10 30.17 30.09 30.03 10 6 4 13 5 - 0.00  
22 79 63 47 24 19 14 39 24 9 30.16 30.08 30.02 10 10 10 12 6 - 0.00  
23 78 64 49 33 23 16 36 25 14 30.08 30.02 29.95 10 10 10 13 5 20 0.00  
24 70 60 50 45 39 32 74 50 25 30.12 29.96 29.87 10 9 2 14 5 21 T Rain
25 66 55 43 46 41 37 83 60 37 30.14 29.97 29.88 10 9 2 28 3 37 T Rain
26 59 52 45 49 45 43 93 80 66 30.18 30.07 29.97 10 9 2 10 3 - T Rain
27 66 53 39 46 41 37 100 70 40 30.31 30.20 30.07 10 6 0 9 3 12 0.00 Fog
28 71 58 44 41 34 24 76 47 18 30.13 30.05 29.97 10 10 10 13 5 20 0.00  
29 72 58 43 33 31 26 58 39 19 30.21 30.08 30.01 10 10 10 23 10 37 0.00  
30 73 58 43 32 29 22 58 37 16 30.22 30.15 30.08 10 10 10 15 7 32 0.00