Riverton, WY

11:19 AM MDT on May 24, 2017 (GMT -0600)
Riverton Regional

Weather History for KRIW - May, 2009

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Month of May, 2009

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 69 °F 52 °F
Mean Temperature 70 °F 56 °F 42 °F
Min Temperature 52 °F 42 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 23 10 0 304
Cooling Degree Days (base 65) 5 0 0 11
Growing Degree Days (base 50) 20 6 0 196
Dew Point  
Dew Point 50 °F 31 °F 2 °F
Precipitation  
Precipitation 0.48 in 0.03 in 0.00 in 0.70 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 43 mph 9 mph 0 mph
Gust Wind 56 mph 27 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.33 in 29.93 in 29.44 in

Monthly Weather History Graph

Monthly Weather History Graph

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Astronomy

May. 13, 2009 Rise Set
Actual Time 5:52 AM MDT 8:28 PM MDT
Civil Twilight 5:19 AM MDT 9:01 PM MDT
Nautical Twilight 4:39 AM MDT 9:42 PM MDT
Astronomical Twilight 3:53 AM MDT 10:28 PM MDT
Moon 12:11 AM MDT (5/13) 9:02 AM MDT (5/13)
Length of Visible Light 15h 41m
Length of Day
14h 36m
Waning Gibbous, 81% of the Moon is Illuminated
May 13
Waning Gibbous
May 17
Last Quarter
May 24
New
May 30
First Quarter
Jun 7
Full

Daily Weather History & Observations

2009 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 52 42 32 32 30 25 96 66 36 30.25 30.17 30.06 10 8 0 15 7 21 0.02 Fog , Snow
2 57 46 34 42 32 29 89 65 41 30.04 29.91 29.82 10 10 10 17 6 21 0.01 Rain
3 62 52 42 41 37 28 89 59 29 30.00 29.89 29.73 10 10 4 28 6 33 0.10 Rain
4 60 50 39 36 20 13 70 43 15 29.87 29.81 29.73 10 10 10 33 16 43 0.00  
5 69 54 38 34 28 19 62 40 18 29.81 29.75 29.65 10 10 10 39 8 46 0.00  
6 67 53 38 34 29 24 57 40 23 29.93 29.82 29.74 10 10 10 35 11 45 0.00  
7 65 52 38 35 24 12 76 47 17 29.90 29.81 29.75 10 10 10 33 16 45 0.00  
8 53 42 30 31 19 6 78 48 18 30.16 30.06 29.90 10 10 10 26 11 33 0.00  
9 56 45 33 34 28 15 96 60 24 30.24 30.18 30.10 10 9 2 16 6 20 0.02 Snow
10 62 49 36 31 26 22 70 46 22 30.17 30.08 29.97 10 10 10 14 6 20 0.00  
11 72 54 35 34 25 18 82 48 14 30.03 29.84 29.66 10 10 10 22 8 28 0.00  
12 70 56 42 32 24 6 53 35 16 29.76 29.57 29.44 10 10 10 41 17 52 0.00  
13 59 47 34 15 6 2 44 28 11 30.05 29.92 29.67 10 10 10 38 13 46 0.00  
14 68 52 35 28 21 12 52 36 19 29.91 29.82 29.75 10 10 10 30 11 35 0.00  
15 63 51 39 34 30 27 76 52 27 30.22 30.03 29.82 10 10 10 22 11 26 T  
16 69 50 31 33 28 21 92 55 17 30.33 30.18 30.06 10 10 10 13 5 18 0.00  
17 82 64 46 29 25 20 34 24 13 30.14 30.06 29.95 10 10 10 16 9 45 0.00  
18 87 69 50 32 28 23 38 24 10 30.05 29.91 29.80 10 10 10 22 9 28 0.00  
19 89 70 51 41 33 26 44 28 11 29.81 29.70 29.57 10 10 10 43 13 56 0.00  
20 77 62 47 40 32 16 51 32 13 29.99 29.76 29.63 10 10 10 29 13 37 0.00  
21 72 58 44 36 32 24 70 44 17 30.19 30.02 29.88 10 10 10 14 6 17 0.00  
22 73 58 43 43 38 34 82 53 23 30.07 29.98 29.92 10 10 10 26 10 32 0.00  
23 71 59 47 44 43 40 80 59 37 30.06 29.98 29.90 10 10 10 21 6 25 0.04  
24 68 60 51 49 47 45 89 66 42 29.97 29.84 29.69 10 9 2 26 5 33 0.48 Rain , Thunderstorm
25 57 52 46 50 45 41 89 73 57 30.02 29.95 29.84 10 10 10 20 10 25 0.03 Rain
26 67 55 42 43 37 29 89 57 24 30.16 30.02 29.95 10 10 10 12 4 14 0.00  
27 75 60 45 42 37 30 77 49 20 30.00 29.94 29.87 10 10 10 16 7 20 0.00  
28 75 63 50 40 35 32 59 42 24 30.15 29.99 29.91 10 10 10 35 10 45 T Rain
29 81 65 49 40 34 26 63 39 14 30.08 30.01 29.94 10 10 10 15 7 17 0.00  
30 83 67 51 43 38 33 63 40 17 30.02 29.91 29.83 10 10 10 29 11 38 0.00 Thunderstorm
31 77 65 52 46 41 38 66 48 29 30.00 29.84 29.78 10 10 10 26 8 32 T Thunderstorm