Weather History for Helena, MT

Wednesday, November 21, 2012 — View Current Weather Conditions
Wednesday, November 21, 2012
« Previous Day
Next Day »
Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 39 °F 30 °F  
Max Temperature 47 °F 40 °F 61 °F (1904)
Min Temperature 30 °F 20 °F -19 °F (1946)
Degree Days
Heating Degree Days 26 35  
Month to date heating degree days 621 638  
Since 1 July heating degree days 1396 1546  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 531 406  
Moisture
Dew Point 31 °F    
Average Humidity 68    
Maximum Humidity 92    
Minimum Humidity 44    
Precipitation
Precipitation 0.30 in 0.02 in 0.52 in (1921)
Month to date precipitation 1.75 0.34  
Year to date precipitation 8.87 10.67  
Snow
Snow 0.00 in 0.20 in 10.10 in (1921)
Month to date snowfall 17.0 3.0  
Since 1 July snowfall 17.0 7.0  
Since 1 September snowfall 17.0 6.7  
Snow Depth 0.00 in    
Sea Level Pressure
Sea Level Pressure 29.86 in    
Wind
Wind Speed 7 mph (WSW)    
Max Wind Speed 22 mph    
Max Gust Speed 30 mph    
Visibility 9 miles    
Events Rain , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Daily Weather History Graph
Certify This Report
Weather History 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:
Radar Archive
Click to View Archived Radar Loop
This image may take a moment to generate.
Local Photos

There were no photos found matching this date and location.
Visit WunderPhotos
Astronomy
Nov. 21, 2012 Rise Set
Actual Time 7:39 AM MST 4:48 PM MST
Civil Twilight 7:05 AM MST 5:21 PM MST
Nautical Twilight 6:28 AM MST 5:58 PM MST
Astronomical Twilight 5:52 AM MST 6:34 PM MST
Moon 1:26 PM MST (11/21) 12:40 AM MST (11/21)
Length Of Visible Light 10h 15m
Length of Day
9h 08m
Waxing Gibbous, 62% of the Moon is Illuminated
Nov 21
Waxing Gibbous
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New
Dec 19
First Quarter
Visit Astronomy
Hourly Weather History & Observations
Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 44.1 °F - 36.0 °F 73% 29.81 in 10.0 mi Calm Calm - N/A   Overcast
1:53 AM 42.1 °F - 34.0 °F 73% 29.79 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:53 AM 42.1 °F 37.1 °F 35.1 °F 76% 29.78 in 10.0 mi WSW 8.1 mph - N/A   Overcast
3:53 AM 43.0 °F 37.7 °F 35.1 °F 74% 29.74 in 10.0 mi West 9.2 mph - N/A   Overcast
4:53 AM 42.1 °F 37.1 °F 35.1 °F 76% 29.75 in 10.0 mi WNW 8.1 mph - N/A   Overcast
5:53 AM 42.1 °F 36.1 °F 35.1 °F 76% 29.75 in 10.0 mi NW 10.4 mph - N/A   Overcast
6:33 AM 39.2 °F 35.0 °F 35.6 °F 87% 29.75 in 3.0 mi WNW 5.8 mph - 0.05 in Rain Rain
6:53 AM 39.0 °F 36.8 °F 37.0 °F 93% 29.79 in 7.0 mi West 3.5 mph - 0.07 in Rain Light Rain
7:29 AM 39.2 °F - 37.4 °F 93% 29.75 in 4.0 mi Calm Calm - 0.04 in Rain Rain
7:53 AM 39.0 °F 36.8 °F 37.0 °F 93% 29.81 in 4.0 mi SE 3.5 mph - 0.11 in Rain Rain
8:44 AM 37.4 °F 31.4 °F 35.6 °F 93% 29.76 in 8.0 mi SE 8.1 mph - 0.09 in Rain Light Rain
8:53 AM 37.9 °F 31.5 °F 36.0 °F 93% 29.82 in 8.0 mi SE 9.2 mph - 0.10 in Rain Light Rain
9:53 AM 39.0 °F - 37.0 °F 93% 29.77 in 10.0 mi Calm Calm - 0.01 in   Overcast
10:53 AM 39.9 °F 35.8 °F 37.0 °F 89% 29.77 in 10.0 mi WNW 5.8 mph - N/A   Clear
11:53 AM 43.0 °F 41.3 °F 37.9 °F 82% 29.77 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
12:53 PM 43.0 °F - 37.0 °F 80% 29.75 in 10.0 mi Calm Calm - N/A   Overcast
1:35 PM 42.8 °F 34.5 °F 35.6 °F 76% 29.75 in 5.0 mi WSW 18.4 mph 28.8 mph 0.01 in Rain Light Rain
1:53 PM 42.1 °F 35.7 °F 34.0 °F 73% 29.83 in 10.0 mi West 11.5 mph - 0.01 in   Mostly Cloudy
2:53 PM 42.1 °F 34.9 °F 30.9 °F 65% 29.85 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
3:53 PM 41.0 °F 35.2 °F 28.9 °F 62% 29.87 in 10.0 mi West 9.2 mph 18.4 mph N/A   Mostly Cloudy
4:53 PM 39.9 °F 34.5 °F 25.0 °F 55% 29.91 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
5:53 PM 39.9 °F 33.9 °F 19.0 °F 43% 29.94 in 10.0 mi West 9.2 mph 18.4 mph N/A   Clear
6:53 PM 34.0 °F 23.8 °F 27.0 °F 75% 30.00 in 9.0 mi WSW 16.1 mph - 0.00 in Snow Light Snow
7:53 PM 34.0 °F 28.8 °F 26.1 °F 73% 30.05 in 10.0 mi ENE 5.8 mph - N/A   Overcast
8:53 PM 35.1 °F 31.0 °F 21.9 °F 59% 30.07 in 10.0 mi WSW 4.6 mph - N/A   Partly Cloudy
9:53 PM 32.0 °F 26.4 °F 21.0 °F 64% 30.07 in 10.0 mi SW 5.8 mph - N/A   Clear
10:53 PM 30.9 °F 26.2 °F 19.9 °F 64% 30.08 in 10.0 mi ENE 4.6 mph - N/A   Clear
11:53 PM 32.0 °F 25.6 °F 19.9 °F 61% 30.09 in 10.0 mi ESE 6.9 mph - N/A   Clear
Show full METARS | METAR FAQ | Comma Delimited File