Weather History for Helena, MT

Change the Weather History Date:

Week of October 20, 2013 through October 26, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 68 °F 64 °F 58 °F
Mean Temperature 50 °F 48 °F 46 °F
Min Temperature 36 °F 31 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 19 17 15 122
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 36 °F 30 °F 18 °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 15 mph 2 mph 0 mph
Gust Wind 20 mph 16 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.41 in 30.23 in 30.07 in

Weekly Weather History Graph

Weekly Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Oct. 21, 2013 Rise Set
Actual Time 7:54 AM MDT 6:29 PM MDT
Civil Twilight 7:23 AM MDT 7:00 PM MDT
Nautical Twilight 6:48 AM MDT 7:35 PM MDT
Astronomical Twilight 6:13 AM MDT 8:10 PM MDT
Moon 8:16 PM MDT (10/21) 10:41 AM MDT (10/21)
Length of Visible Light 11h 37m
Length of Day
10h 35m
Waning Gibbous, 92% of the Moon is Illuminated
Oct 21
Waning Gibbous
Oct 26
Last Quarter
Nov 3
New
Nov 9
First Quarter
Nov 17
Full

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  
20 58 47 36 35 32 28 73 53 33 30.17 30.13 30.07 10 10 10 15 3 20 0.00  
21 64 48 32 35 32 28 85 60 34 30.29 30.21 30.15 10 10 10 14 2 17 0.00  
22 68 50 31 36 32 29 89 57 24 30.30 30.21 30.13 10 10 9 9 1 12 0.00  
23 63 47 30 34 30 26 85 59 32 30.31 30.25 30.20 10 10 10 10 3 12 0.00  
24 61 46 31 35 32 27 89 63 36 30.33 30.25 30.17 10 10 10 7 1 7 0.00  
25 66 47 28 33 29 26 85 55 24 30.35 30.30 30.21 10 10 9 8 1 9 0.00  
26 68 48 28 30 24 18 78 46 14 30.41 30.28 30.12 10 10 10 15 3 20 0.00