Helena, MT
on Monday, May 12, 2008

Monday
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Daily Summary
 ActualAverageRecord
Temperature
Mean Temperature - 52 °F / 11 °C  
Max Temperature 49 °F / 9 °C 65 °F / 18 °C 92 °F / 33 °C (2001)
Min Temperature 36 °F / 2 °C 39 °F / 3 °C 22 °F / -5 °C (1943)
Degree Days
Heating Degree Days 22 13  
Month to date heating degree days 191 180  
Since 1 July heating degree days 7022 7614  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture
Dew Point 28 °F / -2 °C   
Average Humidity 63    
Maximum Humidity 85    
Minimum Humidity 40    
Precipitation
Precipitation 0.26 in / 0.66 cm 0.06 in / 0.15 cm 2.00 in / 5.08 cm (1900)
Month to date precipitation 0.48 0.61  
Year to date precipitation 1.89 3.05  
Snow
Snow T in / T cm - - ()
Month to date snowfall T  
Since 1 July snowfall 31.3  
Snow Depth 0.00 in / 0.00 cm   
Wind
Wind Speed 9 mph / 15 km/h   
Max Wind Speed 22 mph / 35 km/h   
Max Gust Speed 63 mph / 101 km/h   
Visibility 8 miles / 14 kilometers   
Events Rain , Snow   

Key: T is trace of precipitation, MM is missing value
Source: NWS Daily Summary
Time(MDT)TemperatureDew PointHumidity Pressure Visibility Wind DirectionWind SpeedGust SpeedPrecipitationEvents Conditions
12:53 AM 44.1 °F / 6.7 °C 21.0 °F / -6.1 °C 40% 29.81 in / 1009.3 hPa 10.0 miles / 16.1 kilometers West 11.5 mph / 18.5 km/h - N/A   Clear
1:53 AM 43.0 °F / 6.1 °C 21.9 °F / -5.6 °C 43% 29.82 in / 1009.8 hPa 10.0 miles / 16.1 kilometers West 15.0 mph / 24.1 km/h 23.0 mph / 37.0 km/h N/A   Clear
2:53 AM 43.0 °F / 6.1 °C 23.0 °F / -5.0 °C 45% 29.83 in / 1009.9 hPa 10.0 miles / 16.1 kilometers West 16.1 mph / 25.9 km/h 20.7 mph / 33.3 km/h N/A   Partly Cloudy
3:53 AM 41.0 °F / 5.0 °C 23.0 °F / -5.0 °C 49% 29.84 in / 1010.4 hPa 10.0 miles / 16.1 kilometers West 16.1 mph / 25.9 km/h 23.0 mph / 37.0 km/h N/A   Clear
4:53 AM 41.0 °F / 5.0 °C 24.1 °F / -4.4 °C 51% 29.85 in / 1010.7 hPa 10.0 miles / 16.1 kilometers West 12.7 mph / 20.4 km/h 19.6 mph / 31.5 km/h N/A   Clear
5:53 AM 39.9 °F / 4.4 °C 24.1 °F / -4.4 °C 53% 29.86 in / 1011.0 hPa 10.0 miles / 16.1 kilometers West 15.0 mph / 24.1 km/h - N/A   Clear
6:53 AM 41.0 °F / 5.0 °C 24.1 °F / -4.4 °C 51% 29.88 in / 1011.7 hPa 10.0 miles / 16.1 kilometers West 13.8 mph / 22.2 km/h - N/A   Mostly Cloudy
7:53 AM 44.1 °F / 6.7 °C 25.0 °F / -3.9 °C 47% 29.89 in / 1012.0 hPa 10.0 miles / 16.1 kilometers West 15.0 mph / 24.1 km/h - N/A   Overcast
9:53 AM 37.9 °F / 3.3 °C 33.1 °F / 0.6 °C 83% 29.97 in / 1014.8 hPa 4.0 miles / 6.4 kilometers WNW 15.0 mph / 24.1 km/h - 0.00 in / 0.0 cm Rain Light Rain
10:07 AM 37.4 °F / 3.0 °C 33.8 °F / 1.0 °C 87% 29.91 in / 1012.8 hPa 3.0 miles / 4.8 kilometers WNW 10.4 mph / 16.7 km/h - 0.01 in / 0.0 cm Snow Light Snow
10:36 AM 37.4 °F / 3.0 °C 33.8 °F / 1.0 °C 87% 29.91 in / 1012.8 hPa 2.0 miles / 3.2 kilometers West 9.2 mph / 14.8 km/h - 0.03 in / 0.1 cm Snow Light Snow
10:53 AM 36.0 °F / 2.2 °C 33.1 °F / 0.6 °C 89% 29.99 in / 1015.6 hPa 2.0 miles / 3.2 kilometers West 11.5 mph / 18.5 km/h - 0.05 in / 0.1 cm Snow Light Snow
11:18 AM 39.2 °F / 4.0 °C 33.8 °F / 1.0 °C 81% 29.91 in / 1012.8 hPa 9.0 miles / 14.5 kilometers WSW 9.2 mph / 14.8 km/h - 0.02 in / 0.1 cm Rain Light Rain
11:32 AM 39.2 °F / 4.0 °C 35.6 °F / 2.0 °C 87% 29.92 in / 1013.1 hPa 9.0 miles / 14.5 kilometers West 6.9 mph / 11.1 km/h - 0.02 in / 0.1 cm Rain Light Rain
11:53 AM 39.9 °F / 4.4 °C 34.0 °F / 1.1 °C 79% 29.99 in / 1015.5 hPa 4.0 miles / 6.4 kilometers West 10.4 mph / 16.7 km/h - 0.04 in / 0.1 cm Rain Light Rain
12:02 PM 39.2 °F / 4.0 °C 33.8 °F / 1.0 °C 81% 29.92 in / 1013.1 hPa 10.0 miles / 16.1 kilometers West 8.1 mph / 13.0 km/h - 0.00 in / 0.0 cm Rain Light Rain
12:44 PM 39.2 °F / 4.0 °C 33.8 °F / 1.0 °C 81% 29.93 in / 1013.4 hPa 10.0 miles / 16.1 kilometers NNE 9.2 mph / 14.8 km/h - 0.00 in / 0.0 cm Rain Light Rain
12:53 PM 39.9 °F / 4.4 °C 35.1 °F / 1.7 °C 83% 30.01 in / 1016.3 hPa 10.0 miles / 16.1 kilometers Calm Calm - 0.00 in / 0.0 cm Rain Light Rain
1:43 PM 41.0 °F / 5.0 °C 35.6 °F / 2.0 °C 81% 29.94 in / 1013.8 hPa 10.0 miles / 16.1 kilometers NE 4.6 mph / 7.4 km/h - 0.00 in / 0.0 cm Rain Light Rain
1:53 PM 42.1 °F / 5.6 °C 37.0 °F / 2.8 °C 82% 30.01 in / 1016.3 hPa 10.0 miles / 16.1 kilometers East 4.6 mph / 7.4 km/h - 0.01 in / 0.0 cm Rain Light Rain
2:53 PM 42.1 °F / 5.6 °C 37.0 °F / 2.8 °C 82% 30.03 in / 1016.7 hPa 6.0 miles / 9.7 kilometers SSE 6.9 mph / 11.1 km/h - 0.03 in / 0.1 cm Rain Light Rain
3:28 PM 39.2 °F / 4.0 °C 37.4 °F / 3.0 °C 93% 29.97 in / 1014.8 hPa 2.0 miles / 3.2 kilometers East 4.6 mph / 7.4 km/h - 0.04 in / 0.1 cm Rain Rain
3:38 PM 41.0 °F / 5.0 °C 37.4 °F / 3.0 °C 87% 29.97 in / 1014.8 hPa 10.0 miles / 16.1 kilometers SE 3.5 mph / 5.6 km/h - 0.04 in / 0.1 cm Rain Light Rain
3:42 PM 42.8 °F / 6.0 °C 37.4 °F / 3.0 °C 81% 29.97 in / 1014.8 hPa 10.0 miles / 16.1 kilometers SSW 4.6 mph / 7.4 km/h - 0.04 in / 0.1 cm Rain Light Rain
3:44 PM 42.8 °F / 6.0 °C 39.2 °F / 4.0 °C 87% 29.97 in / 1014.8 hPa 10.0 miles / 16.1 kilometers SSW 5.8 mph / 9.3 km/h - 0.04 in / 0.1 cm   Mostly Cloudy
3:49 PM 42.8 °F / 6.0 °C 37.4 °F / 3.0 °C 81% 29.96 in / 1014.4 hPa 10.0 miles / 16.1 kilometers South 6.9 mph / 11.1 km/h - 0.04 in / 0.1 cm   Scattered Clouds
3:53 PM 44.1 °F / 6.7 °C 39.0 °F / 3.9 °C 82% 30.04 in / 1017.1 hPa 10.0 miles / 16.1 kilometers South 5.8 mph / 9.3 km/h - 0.04 in / 0.1 cm   Mostly Cloudy
4:53 PM 45.0 °F / 7.2 °C 37.9 °F / 3.3 °C 76% 30.06 in / 1017.7 hPa 10.0 miles / 16.1 kilometers SSW 4.6 mph / 7.4 km/h - 0.01 in / 0.0 cm   Mostly Cloudy
5:53 PM 48.0 °F / 8.9 °C 37.9 °F / 3.3 °C 68% 30.05 in / 1017.5 hPa 10.0 miles / 16.1 kilometers Calm Calm - 0.00 in / 0.0 cm   Mostly Cloudy
6:53 PM 44.1 °F / 6.7 °C 37.0 °F / 2.8 °C 76% 30.08 in / 1018.5 hPa 8.0 miles / 12.9 kilometers North 10.4 mph / 16.7 km/h - 0.08 in / 0.2 cm Rain Light Rain
7:01 PM 44.6 °F / 7.0 °C 37.4 °F / 3.0 °C 76% 30.01 in / 1016.1 hPa 8.0 miles / 12.9 kilometers NNW 5.8 mph / 9.3 km/h - 0.00 in / 0.0 cm Rain Light Rain
7:53 PM 45.0 °F / 7.2 °C 37.0 °F / 2.8 °C 74% 30.08 in / 1018.6 hPa 10.0 miles / 16.1 kilometers WSW 8.1 mph / 13.0 km/h - 0.00 in / 0.0 cm   Mostly Cloudy
8:53 PM 44.1 °F / 6.7 °C 36.0 °F / 2.2 °C 73% 30.11 in / 1019.6 hPa 10.0 miles / 16.1 kilometers WSW 6.9 mph / 11.1 km/h - N/A   Mostly Cloudy
9:53 PM 44.1 °F / 6.7 °C 36.0 °F / 2.2 °C 73% 30.16 in / 1021.2 hPa 10.0 miles / 16.1 kilometers West 9.2 mph / 14.8 km/h - N/A   Overcast
10:53 PM 42.1 °F / 5.6 °C 35.1 °F / 1.7 °C 76% 30.19 in / 1022.1 hPa 10.0 miles / 16.1 kilometers West 5.8 mph / 9.3 km/h - N/A   Overcast
11:53 PM 39.9 °F / 4.4 °C 34.0 °F / 1.1 °C 79% 30.17 in / 1021.7 hPa 10.0 miles / 16.1 kilometers South 4.6 mph / 7.4 km/h - N/A   Clear

Astronomy

Sunrise: 05:56 AM (MDT) Moon Rise: 01:27 PM (MDT) 5 / 12
Sunset: 08:52 PM (MDT) Moon Set: 02:50 AM (MDT) 5 / 12
Moon Phase
May. 12 May. 19 May. 27 Jun. 03 Jun. 10

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