Weather History for Lewistown, MT

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Week of December 23, 2012 through December 29, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 31 °F 21 °F 8 °F
Mean Temperature 21 °F 12 °F 0 °F
Min Temperature 14 °F 2 °F -11 °F
Degree Days  
Heating Degree Days (base 65) 65 53 44 374
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 18 °F 5 °F -10 °F
Precipitation  
Precipitation 0.03 in 0.01 in 0.00 in 0.04 in
Snowdepth 2.0 in 2.0 in 2.0 in -
Wind  
Wind 16 mph 4 mph 0 mph
Gust Wind 21 mph - -
Sea Level Pressure  
Sea Level Pressure 30.50 in 30.07 in 29.73 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Dec. 29, 2012 Rise Set
Actual Time 8:03 AM MST 4:36 PM MST
Civil Twilight 7:28 AM MST 5:12 PM MST
Nautical Twilight 6:49 AM MST 5:51 PM MST
Astronomical Twilight 6:12 AM MST 6:28 PM MST
Moon 6:20 PM MST (12/29) 8:33 AM MST (12/29)
Length of Visible Light 9h 44m
Length of Day
8h 33m
Full, 98% of the Moon is Illuminated
Dec 29
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
23 31 18 5 16 8 3 92 73 53 30.11 30.02 29.80 10 9 5 10 3 13 0.00  
24 8 3 -2 3 -3 -6 96 88 79 30.50 30.13 29.86 10 3 0 16 7 21 0.03 Fog , Snow
25 10 0 -11 2 -4 -10 87 78 69 30.49 30.30 30.07 10 9 2 14 3 16 T Snow
26 12 4 -4 5 1 -4 95 84 73 30.04 29.90 29.73 10 7 0 7 2 7 0.01 Fog , Snow
27 26 16 6 16 10 2 92 80 68 30.03 30.00 29.96 10 10 10 9 2 9 0.00  
28 28 21 14 18 13 7 84 71 57 30.12 30.06 29.98 10 10 9 14 8 17 T  
29 30 19 7 16 9 3 80 64 47 30.14 30.07 29.93 10 10 10 10 5 12 0.00