Weather History for Lewistown, MT

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Week of February 17, 2013 through February 23, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 38 °F 31 °F 21 °F
Mean Temperature 32 °F 24 °F 14 °F
Min Temperature 25 °F 16 °F 6 °F
Degree Days  
Heating Degree Days (base 65) 51 41 33 288
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 31 °F 17 °F 5 °F
Precipitation  
Precipitation 0.07 in 0.01 in 0.00 in 0.09 in
Snowdepth 2.0 in 1.5 in 1.0 in -
Wind  
Wind 32 mph 10 mph 0 mph
Gust Wind 40 mph 28 mph 20 mph
Sea Level Pressure  
Sea Level Pressure 30.19 in 29.89 in 29.56 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Feb. 21, 2013 Rise Set
Actual Time 7:11 AM MST 5:51 PM MST
Civil Twilight 6:40 AM MST 6:22 PM MST
Nautical Twilight 6:05 AM MST 6:58 PM MST
Astronomical Twilight 5:30 AM MST 7:33 PM MST
Moon 1:59 PM MST (2/21) 4:29 AM MST (2/21)
Length of Visible Light 11h 42m
Length of Day
10h 40m
Waxing Gibbous, 84% of the Moon is Illuminated
Feb 21
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Feb high avg low high avg low high avg low high avg low high avg low high avg high sum  
17 38 32 25 31 26 21 100 77 54 30.06 29.80 29.65 10 5 0 32 15 40 0.07 Fog , Snow
18 30 24 17 21 17 11 92 71 50 30.19 30.08 29.97 10 8 1 18 9 23 0.01 Snow
19 27 20 12 18 13 7 88 76 63 30.01 29.89 29.80 10 10 10 21 11 24 0.00  
20 21 14 6 18 14 5 96 90 83 29.99 29.89 29.79 10 5 0 8 2 9 0.01 Fog , Snow
21 31 20 9 17 12 7 100 74 47 30.04 29.98 29.85 10 10 10 14 5 15 0.00  
22 35 26 17 22 16 10 74 65 56 29.97 29.81 29.58 10 10 10 26 13 32 0.00  
23 36 31 25 25 21 15 81 64 47 30.05 29.78 29.56 10 10 8 24 14 31 T Snow