Weather History for Helena, MT

Week of September 2, 2012 through September 8, 2012 — View Current Weather Conditions
Week of September 2, 2012 through September 8, 2012
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Daily Weekly Monthly Custom
  Max Avg Min Sum
Temperature
Max Temperature 86 °F 78 °F 67 °F
Mean Temperature 65 °F 61 °F 58 °F
Min Temperature 49 °F 43 °F 39 °F
Degree Days
Heating Degree Days (base 65) 7 4 0 28
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 10 0 59
Dew Point
Dew Point 42 °F 29 °F 10 °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 24 mph 7 mph 0 mph
Gust Wind 30 mph 23 mph 17 mph
Sea Level Pressure
Sea Level Pressure 30.35 in 30.12 in 29.93 in
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Date:
Astronomy
Sep. 08, 2012 Rise Set
Actual Time 6:57 AM MDT 7:52 PM MDT
Civil Twilight 6:26 AM MDT 8:22 PM MDT
Nautical Twilight 5:50 AM MDT 8:59 PM MDT
Astronomical Twilight 5:11 AM MDT 9:38 PM MDT
Moon No Moon Rise 3:08 PM MDT (9/8)
Length Of Visible Light 13h 56m
Length of Day
12h 54m
Waning Gibbous, 48% of the Moon is Illuminated
Sep 8
Waning Gibbous
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
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Daily Weather History & Observations
2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
2 81 60 39 30 18 10 46 28 9 30.12 30.02 29.93 10 10 6 23 10 28 0.00  
3 81 62 43 26 21 14 32 21 10 30.12 30.03 29.94 10 9 5 23 10 28 0.00  
4 73 61 48 35 28 23 49 34 18 30.09 30.06 29.99 10 9 4 18 6 28 0.00  
5 81 62 42 33 33 33 42 28 14 30.12 30.12 30.12 10 10 10 23 9 29 0.00  
6 67 58 49 40 40 40 46 46 46 30.13 30.13 30.13 10 10 10 24 9 30 0.00  
7 78 59 40 42 36 30 71 45 19 30.35 30.28 30.23 10 10 10 13 3 16 0.00  
8 86 65 43 37 29 22 58 34 10 30.35 30.20 30.05 10 10 10 20 4 26 0.00  
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