Weather History for Helena, MT

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Week of March 10, 2013 through March 16, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 55 °F 43 °F
Mean Temperature 49 °F 43 °F 34 °F
Min Temperature 36 °F 31 °F 20 °F
Degree Days  
Heating Degree Days (base 65) 31 22 16 154
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 30 °F 23 °F 13 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 35 mph 8 mph 0 mph
Gust Wind 46 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.40 in 30.13 in 29.67 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Mar. 13, 2013 Rise Set
Actual Time 7:44 AM MDT 7:31 PM MDT
Civil Twilight 7:13 AM MDT 8:01 PM MDT
Nautical Twilight 6:38 AM MDT 8:36 PM MDT
Astronomical Twilight 6:03 AM MDT 9:12 PM MDT
Moon 8:16 AM MDT (3/13) 10:03 PM MDT (3/13)
Length of Visible Light 12h 47m
Length of Day
11h 47m
Waxing Crescent, 4% of the Moon is Illuminated
Mar 13
Waxing Crescent
Mar 19
First Quarter
Mar 27
Full
Apr 2
Last Quarter
Apr 10
New

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Mar high avg low high avg low high avg low high avg low high avg low high avg high sum  
10 53 43 32 27 18 13 64 43 21 30.38 30.25 30.09 10 10 10 23 11 31 0.00  
11 43 34 25 25 21 17 75 58 41 30.40 30.23 30.09 10 10 10 29 13 37 0.00  
12 51 36 20 28 21 16 88 62 36 30.40 30.26 30.12 10 10 10 18 5 24 0.00  
13 62 49 36 29 27 22 64 44 23 30.19 30.16 30.12 10 10 10 22 6 28 0.00  
14 62 47 31 29 28 26 82 55 27 30.25 30.13 29.99 10 10 10 12 3 18 0.00  
15 57 46 35 30 25 20 64 45 26 30.08 30.02 29.95 10 10 10 35 12 46 0.00  
16 55 46 36 28 23 18 60 42 24 30.06 29.89 29.67 10 10 10 18 8 23 0.00