Weather History for Lewistown, MT

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Week of May 19, 2013 through May 25, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 67 °F 60 °F 52 °F
Mean Temperature 52 °F 51 °F 50 °F
Min Temperature 47 °F 41 °F 34 °F
Degree Days  
Heating Degree Days (base 65) 15 14 13 98
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 1 0 8
Dew Point  
Dew Point 50 °F 41 °F 26 °F
Precipitation  
Precipitation 0.91 in 0.32 in 0.00 in 1.61 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 38 mph 13 mph 0 mph
Gust Wind 48 mph 25 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.17 in 29.96 in 29.77 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

May. 24, 2013 Rise Set
Actual Time 5:32 AM MDT 8:57 PM MDT
Civil Twilight 4:54 AM MDT 9:35 PM MDT
Nautical Twilight 4:05 AM MDT 10:25 PM MDT
Astronomical Twilight 3:01 AM MDT 11:30 PM MDT
Moon 8:41 PM MDT (5/24) 5:10 AM MDT (5/24)
Length of Visible Light 16h 40m
Length of Day
15h 25m
Full, 100% of the Moon is Illuminated
May 24
Full
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Daily Weather History & Observations

2013 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  
19 52 50 47 50 47 46 100 93 86 30.12 30.03 29.94 10 8 2 17 10 24 0.91 Rain
20 63 52 40 48 44 26 100 63 26 30.17 30.13 30.09 10 10 6 20 9 25 T  
21 65 50 34 40 32 27 92 59 25 30.12 30.00 29.91 10 10 10 24 13 31 0.00  
22 57 50 43 45 41 37 83 70 57 29.93 29.89 29.86 10 10 8 35 24 46 0.00  
23 56 51 45 46 44 39 100 82 63 29.91 29.86 29.77 10 8 2 38 17 48 0.56 Rain
24 63 52 41 45 38 27 100 63 25 29.94 29.87 29.79 10 9 2 28 11 36 0.14 Rain
25 67 52 37 43 38 35 92 65 37 29.96 29.92 29.86 10 10 10 15 5 21 T