Weather History for Helena, MT

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Week of October 6, 2013 through October 12, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 73 °F 60 °F 51 °F
Mean Temperature 54 °F 46 °F 40 °F
Min Temperature 34 °F 31 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 25 19 11 132
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 1 0 4
Dew Point  
Dew Point 37 °F 28 °F 19 °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 25 mph 6 mph 0 mph
Gust Wind 35 mph 23 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.38 in 30.01 in 29.72 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Oct. 06, 2013 Rise Set
Actual Time 7:33 AM MDT 6:57 PM MDT
Civil Twilight 7:03 AM MDT 7:27 PM MDT
Nautical Twilight 6:28 AM MDT 8:02 PM MDT
Astronomical Twilight 5:53 AM MDT 8:37 PM MDT
Moon 9:30 AM MDT (10/6) 7:49 PM MDT (10/6)
Length of Visible Light 12h 24m
Length of Day
11h 23m
Waxing Crescent, 4% of the Moon is Illuminated
Oct 6
Waxing Crescent
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter
Nov 3
New

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
6 69 50 30 37 32 28 85 56 27 30.38 30.24 30.08 10 10 10 13 3 16 0.00  
7 73 54 34 34 30 25 76 47 17 30.06 29.87 29.72 10 10 10 25 6 35 0.00  
8 56 45 33 29 26 21 64 45 26 30.02 29.89 29.83 10 10 10 23 10 31 0.00  
9 57 45 33 34 31 26 76 57 38 30.15 30.03 29.91 10 10 10 10 5 15 0.00  
10 59 44 28 33 28 21 92 58 24 29.93 29.85 29.75 10 8 0 17 6 23 0.00 Fog
11 56 45 33 30 24 19 57 41 24 30.11 30.04 29.90 10 10 10 23 8 28 0.00  
12 51 40 28 29 25 22 78 59 39 30.21 30.15 30.12 10 10 10 9 2 10 0.00