Helena, MT

12:56 PM MDT on May 20, 2018 (GMT -0600)
Helena Regional

Weather History for KHLN - September, 2012

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Week of September 9, 2012 through September 15, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 77 °F 65 °F
Mean Temperature 68 °F 61 °F 54 °F
Min Temperature 51 °F 43 °F 38 °F
Degree Days  
Heating Degree Days (base 65) 11 5 0 34
Cooling Degree Days (base 65) 3 0 0 3
Growing Degree Days (base 50) 17 10 4 70
Dew Point  
Dew Point 37 °F 25 °F 6 °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 6 mph 0 mph
Gust Wind 33 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.49 in 30.13 in 29.72 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 12, 2012 Rise Set
Actual Time 7:02 AM MDT 7:44 PM MDT
Civil Twilight 6:32 AM MDT 8:14 PM MDT
Nautical Twilight 5:55 AM MDT 8:51 PM MDT
Astronomical Twilight 5:17 AM MDT 9:28 PM MDT
Moon 3:12 AM MDT (9/12) 5:42 PM MDT (9/12)
Length of Visible Light 13h 42m
Length of Day
12h 41m
Waning Crescent, 13% of the Moon is Illuminated
Sep 12
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

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  
9 89 68 47 36 31 27 50 31 12 30.06 29.93 29.72 10 9 7 26 6 32 0.00  
10 79 65 51 37 30 20 46 29 11 29.93 29.81 29.74 10 8 3 26 12 33 0.00  
11 65 54 42 32 18 6 45 28 10 30.25 30.10 29.93 10 10 10 24 11 32 0.00  
12 69 55 41 21 18 15 39 26 13 30.40 30.33 30.24 10 10 10 17 8 22 0.00  
13 78 58 38 26 24 21 54 33 12 30.49 30.40 30.31 10 10 5 13 4 15 0.00  
14 82 61 40 32 25 20 53 32 11 30.32 30.21 30.08 10 7 5 7 1 10 0.00  
15 80 63 45 32 26 20 49 31 12 30.14 30.10 30.04 10 6 3 12 2 14 0.00