Weather History for Helena, MT

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Week of February 24, 2013 through March 2, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 46 °F 40 °F
Mean Temperature 44 °F 36 °F 31 °F
Min Temperature 33 °F 25 °F 19 °F
Degree Days  
Heating Degree Days (base 65) 34 29 21 203
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 31 °F 19 °F 11 °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 26 mph 7 mph 0 mph
Gust Wind 33 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.41 in 30.24 in 29.82 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Feb. 24, 2013 Rise Set
Actual Time 7:15 AM MST 6:07 PM MST
Civil Twilight 6:45 AM MST 6:37 PM MST
Nautical Twilight 6:10 AM MST 7:12 PM MST
Astronomical Twilight 5:35 AM MST 7:47 PM MST
Moon 5:22 PM MST (2/24) 6:16 AM MST (2/24)
Length of Visible Light 11h 52m
Length of Day
10h 51m
Waxing Gibbous, 99% of the Moon is Illuminated
Feb 24
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Feb high avg low high avg low high avg low high avg low high avg low high avg high sum  
24 40 31 21 14 13 11 60 45 30 30.30 30.22 30.17 10 10 10 26 11 33 0.00  
25 40 31 21 28 16 14 77 59 40 30.17 30.03 29.82 10 10 2 25 5 31 T Snow
26 41 34 26 17 14 12 58 48 37 30.34 30.22 30.06 10 10 10 23 11 29 0.00  
27 46 33 19 16 14 12 74 51 28 30.41 30.33 30.19 10 10 10 17 4 21 0.00  
28 46 35 24 29 21 15 70 54 37 30.40 30.35 30.23 10 10 10 22 6 29 0.00  
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  
1 55 44 33 31 29 28 82 60 38 30.37 30.33 30.25 10 10 10 23 9 31 0.00  
2 57 44 30 30 27 25 78 55 32 30.37 30.18 29.93 10 10 10 21 4 25 0.00