Helena, MT

11:31 AM MDT on September 20, 2017 (GMT -0600)
Helena Regional

Weather History for KHLN - October, 2011

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Week of October 16, 2011 through October 22, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 64 °F 57 °F 48 °F
Mean Temperature 54 °F 46 °F 39 °F
Min Temperature 44 °F 34 °F 27 °F
Degree Days  
Heating Degree Days (base 65) 26 19 11 136
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 5 1 0 5
Dew Point  
Dew Point 44 °F 33 °F 18 °F
Precipitation  
Precipitation 0.05 in 0.01 in 0.00 in 0.07 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 36 mph 5 mph 0 mph
Gust Wind 48 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.57 in 30.19 in 29.98 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Oct. 20, 2011 Rise Set
Actual Time 7:52 AM MDT 6:32 PM MDT
Civil Twilight 7:21 AM MDT 7:03 PM MDT
Nautical Twilight 6:46 AM MDT 7:38 PM MDT
Astronomical Twilight 6:11 AM MDT 8:13 PM MDT
Moon 12:15 AM MDT 3:06 PM MDT
Length of Visible Light 11h 41m
Length of Day
10h 40m
Last Quarter, 43% of the Moon is Illuminated
Oct 20
Last Quarter
Oct 26
New
Nov 2
First Quarter
Nov 10
Full
Nov 18
Last Quarter

Daily Weather History & Observations

2011 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  
16 48 41 34 44 37 32 100 81 62 30.22 30.10 29.98 10 9 4 17 4 22 0.05 Rain
17 56 44 31 34 27 18 89 57 24 30.45 30.37 30.18 10 10 10 18 7 24 0.00  
18 58 43 28 31 29 27 85 59 33 30.57 30.42 30.29 10 10 10 12 3 14 0.00  
19 51 39 27 36 31 26 89 68 46 30.25 30.10 30.01 10 10 8 8 1 10 0.00  
20 64 48 31 38 35 30 92 64 36 30.15 30.08 30.00 10 10 10 14 3 17 0.00  
21 56 50 43 43 39 37 96 75 54 30.21 30.17 30.12 10 10 7 17 5 21 0.02 Rain
22 64 54 44 40 35 29 63 46 29 30.22 30.12 30.01 10 10 10 36 11 48 T