Weather History for Yellowstone, WY

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Week of September 15, 2013 through September 21, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 69 °F 58 °F 43 °F
Mean Temperature 54 °F 46 °F 38 °F
Min Temperature 43 °F 34 °F 26 °F
Degree Days  
Heating Degree Days (base 65) 27 19 11 130
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 1 0 4
Dew Point  
Dew Point 51 °F 38 °F 21 °F
Precipitation  
Precipitation 0.53 in 0.15 in 0.00 in 1.02 in
Snowdepth - - - -
Wind  
Wind 15 mph 2 mph 0 mph
Gust Wind 25 mph 20 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.30 in 30.04 in 29.69 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 21, 2013 Rise Set
Actual Time 7:08 AM MDT 7:20 PM MDT
Civil Twilight 6:38 AM MDT 7:49 PM MDT
Nautical Twilight 6:04 AM MDT 8:23 PM MDT
Astronomical Twilight 5:29 AM MDT 8:58 PM MDT
Moon 8:25 PM MDT (9/21) 9:37 AM MDT (9/21)
Length of Visible Light 13h 10m
Length of Day
12h 12m
Waning Gibbous, 94% of the Moon is Illuminated
Sep 21
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Daily Weather History & Observations

2013 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  
15 60 52 43 51 46 43 100 80 60 30.16 30.13 30.10 - - - 6 1 12 0.04  
16 69 54 39 49 45 39 100 71 42 30.12 30.04 29.95 - - - 9 1 18 0.00  
17 59 51 42 48 44 41 100 79 57 29.99 29.87 29.71 - - - 5 1 - 0.45  
18 43 38 32 41 36 32 100 91 82 30.15 29.94 29.77 - - - 15 3 25 0.53  
19 47 38 29 38 32 28 100 81 62 30.30 30.25 30.15 - - - 6 1 10 0.00  
20 62 44 26 38 30 21 100 61 22 30.28 30.15 30.02 - - - 7 2 13 0.00  
21 65 48 30 40 32 27 100 63 25 30.01 29.87 29.69 - - - 10 2 21 0.00