Weather History for Helena, MT

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Week of October 27, 2013 through November 2, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 60 °F 47 °F 28 °F
Mean Temperature 45 °F 37 °F 24 °F
Min Temperature 39 °F 26 °F 17 °F
Degree Days  
Heating Degree Days (base 65) 41 28 20 196
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 36 °F 23 °F 12 °F
Precipitation  
Precipitation 1.81 in 0.30 in 0.00 in 1.82 in
Snowdepth 2.0 in 0.6 in 0.0 in -
Wind  
Wind 31 mph 8 mph 0 mph
Gust Wind 40 mph 24 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.41 in 30.08 in 29.62 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Oct. 27, 2013 Rise Set
Actual Time 8:02 AM MDT 6:19 PM MDT
Civil Twilight 7:31 AM MDT 6:51 PM MDT
Nautical Twilight 6:56 AM MDT 7:26 PM MDT
Astronomical Twilight 6:21 AM MDT 8:01 PM MDT
Moon 12:39 AM MDT (10/27) 2:53 PM MDT (10/27)
Length of Visible Light 11h 19m
Length of Day
10h 16m
Last Quarter, 43% of the Moon is Illuminated
Oct 27
Last Quarter
Nov 3
New
Nov 9
First Quarter
Nov 17
Full
Nov 25
Last Quarter

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  
27 56 42 28 29 25 22 75 54 32 30.28 30.06 29.89 10 9 2 30 9 39 T Snow
28 28 24 20 19 15 12 84 76 68 30.41 30.27 30.14 10 5 0 25 12 30 1.81 Fog , Snow
29 33 26 19 22 17 13 84 71 58 30.30 30.15 30.04 10 10 10 12 3 14 0.00  
30 50 34 17 27 21 13 84 60 36 30.08 30.03 29.96 10 10 9 17 4 23 0.00  
31 50 45 39 30 26 22 60 50 40 30.10 30.00 29.94 10 10 10 31 14 40 0.00  
2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Nov high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 55 43 30 29 27 25 75 54 32 30.27 30.20 30.12 10 10 10 22 8 29 0.00  
2 60 45 30 36 30 25 85 57 29 30.16 29.83 29.62 10 10 9 25 4 33 0.01 Rain