Weather History for Lewistown, MT

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Sunday, May 19, 2013

  Actual Average Record
Temperature  
Mean Temperature 50 °F 51 °F  
Max Temperature 52 °F 63 °F 87 °F (1954)
Min Temperature 47 °F 39 °F 25 °F (1997)
Degree Days  
Heating Degree Days 15 14  
Month to date heating degree days 259 318  
Since 1 July heating degree days 7672 7825  
Cooling Degree Days 0 0  
Month to date cooling degree days 3 0  
Year to date cooling degree days 3 0  
Moisture  
Dew Point 47 °F    
Average Humidity 93    
Maximum Humidity 100    
Minimum Humidity 86    
Precipitation  
Precipitation 0.91 in 0.10 in 0.91 in (2013)
Month to date precipitation 1.87 1.55  
Year to date precipitation 5.23 4.96  
Snow  
Snow 0.00 in - - ()
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 10 mph (NW)    
Max Wind Speed 17 mph    
Max Gust Speed 24 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

May. 19, 2013 Rise Set
Actual Time 5:37 AM MDT 8:52 PM MDT
Civil Twilight 5:00 AM MDT 9:29 PM MDT
Nautical Twilight 4:12 AM MDT 10:17 PM MDT
Astronomical Twilight 3:12 AM MDT 11:18 PM MDT
Moon 2:37 PM MDT (5/19) 2:26 AM MDT (5/19)
Length of Visible Light 16h 28m
Length of Day
15h 14m
Waxing Gibbous, 66% of the Moon is Illuminated
May 19
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 50.0 °F - 46.9 °F 89% 29.94 in 10.0 mi West 6.9 mph - N/A   Overcast
1:13 AM 48.2 °F - 46.4 °F 93% 29.97 in 9.0 mi West 10.4 mph - 0.01 in Rain Light Rain
1:54 AM 48.0 °F - 46.9 °F 96% 29.96 in 10.0 mi WNW 6.9 mph - 0.04 in Rain Light Rain
2:14 AM 48.2 °F - 46.4 °F 93% 29.98 in 10.0 mi West 5.8 mph - 0.00 in   Overcast
2:25 AM 48.2 °F - 46.4 °F 93% 29.97 in 10.0 mi WNW 6.9 mph - 0.00 in   Overcast
2:54 AM 48.0 °F - 46.9 °F 96% 29.95 in 5.0 mi WNW 9.2 mph - 0.03 in Rain Rain
3:19 AM 48.2 °F - 46.4 °F 93% 29.97 in 10.0 mi WNW 10.4 mph - 0.01 in Rain Light Rain
3:40 AM 46.4 °F 41.9 °F 46.4 °F 100% 29.98 in 10.0 mi NW 9.2 mph 17.3 mph 0.01 in Rain Light Rain
3:52 AM 46.4 °F 41.5 °F 46.4 °F 100% 29.97 in 10.0 mi NW 10.4 mph - 0.01 in Rain Light Rain
3:54 AM 46.9 °F - 46.0 °F 97% 29.95 in 10.0 mi NW 10.4 mph - 0.01 in Rain Light Rain
4:05 AM 46.4 °F 41.9 °F 46.4 °F 100% 29.98 in 10.0 mi NW 9.2 mph - 0.00 in Rain Light Rain
4:54 AM 46.9 °F - 46.0 °F 97% 29.96 in 10.0 mi WNW 5.8 mph - 0.01 in Rain Light Rain
5:40 AM 46.4 °F 42.4 °F 46.4 °F 100% 29.98 in 5.0 mi WNW 8.1 mph - 0.07 in Rain Light Rain
6:22 AM 46.4 °F 43.5 °F 46.4 °F 100% 29.99 in 6.0 mi NW 5.8 mph - 0.02 in Rain Light Rain
6:40 AM 46.4 °F 41.1 °F 46.4 °F 100% 29.99 in 6.0 mi WNW 11.5 mph - 0.04 in Rain Light Rain
6:54 AM 46.9 °F - 46.0 °F 97% 29.97 in 6.0 mi NW 10.4 mph - 0.05 in Rain Light Rain
7:01 AM 46.4 °F 41.9 °F 46.4 °F 100% 29.99 in 6.0 mi NW 9.2 mph - 0.00 in Rain Light Rain
7:54 AM 46.9 °F - 46.0 °F 97% 29.98 in 7.0 mi NW 10.4 mph - 0.03 in Rain Light Rain
8:15 AM 46.4 °F 42.4 °F 46.4 °F 100% 30.00 in 2.5 mi NW 8.1 mph - 0.04 in Rain Rain
8:25 AM 46.4 °F 41.5 °F 46.4 °F 100% 30.00 in 4.0 mi NW 10.4 mph - 0.05 in Rain Rain
8:54 AM 46.9 °F - 46.0 °F 97% 29.98 in 3.0 mi NW 12.7 mph 19.6 mph 0.10 in Rain Rain
9:54 AM 46.9 °F - 46.0 °F 97% 29.99 in 5.0 mi NW 11.5 mph 19.6 mph 0.08 in Rain Light Rain
10:54 AM 46.9 °F - 46.9 °F 100% 30.01 in 4.0 mi NW 10.4 mph 17.3 mph 0.08 in Rain Light Rain
11:01 AM 46.4 °F 41.1 °F 46.4 °F 100% 30.03 in 5.0 mi NW 11.5 mph 17.3 mph 0.01 in Rain Light Rain
11:15 AM 46.4 °F 41.1 °F 46.4 °F 100% 30.03 in 2.5 mi NW 11.5 mph 17.3 mph 0.05 in Rain Rain
11:27 AM 46.4 °F 40.7 °F 46.4 °F 100% 30.03 in 3.0 mi NW 12.7 mph - 0.09 in Rain Rain
11:36 AM 46.4 °F 40.7 °F 46.4 °F 100% 30.03 in 3.0 mi NW 12.7 mph - 0.12 in Rain Rain
11:54 AM 46.9 °F - 46.0 °F 97% 30.03 in 4.0 mi WNW 13.8 mph 18.4 mph 0.16 in Rain Rain
12:07 PM 46.4 °F 40.7 °F 46.4 °F 100% 30.04 in 6.0 mi WNW 12.7 mph - 0.02 in Rain Rain
12:18 PM 48.2 °F - 46.4 °F 93% 30.03 in 5.0 mi WNW 11.5 mph - 0.03 in Rain Rain
12:38 PM 48.2 °F - 48.2 °F 100% 30.03 in 8.0 mi WNW 10.4 mph - 0.06 in Rain Light Rain
1:46 PM 48.2 °F - 46.4 °F 93% 30.03 in 10.0 mi NW 12.7 mph 21.9 mph 0.03 in   Overcast
2:06 PM 48.2 °F - 46.4 °F 93% 30.03 in 10.0 mi NW 13.8 mph 24.2 mph 0.01 in   Overcast
2:37 PM 48.2 °F - 48.2 °F 100% 30.03 in 10.0 mi NW 10.4 mph 19.6 mph 0.01 in   Overcast
2:54 PM 48.9 °F - 46.9 °F 93% 30.04 in 6.0 mi NW 12.7 mph 19.6 mph 0.01 in Rain Light Rain
3:23 PM 50.0 °F - 48.2 °F 94% 30.05 in 7.0 mi NW 12.7 mph 18.4 mph 0.03 in Rain Light Rain
3:32 PM 50.0 °F - 48.2 °F 94% 30.05 in 7.0 mi NW 11.5 mph - 0.04 in Rain Light Rain
3:54 PM 50.0 °F - 48.0 °F 93% 30.05 in 5.0 mi NW 9.2 mph 20.7 mph 0.06 in Rain Light Rain
4:03 PM 48.2 °F - 48.2 °F 100% 30.05 in 2.5 mi NW 9.2 mph 18.4 mph 0.03 in Rain Rain
4:10 PM 48.2 °F - 48.2 °F 100% 30.05 in 2.5 mi WNW 12.7 mph 18.4 mph 0.05 in Rain Rain
4:18 PM 50.0 °F - 48.2 °F 94% 30.05 in 7.0 mi NW 10.4 mph 18.4 mph 0.05 in Rain Light Rain
4:30 PM 50.0 °F - 48.2 °F 94% 30.06 in 10.0 mi NW 8.1 mph 18.4 mph 0.05 in   Overcast
4:42 PM 50.0 °F - 48.2 °F 94% 30.06 in 10.0 mi NW 10.4 mph - 0.05 in   Overcast
4:54 PM 51.1 °F - 48.9 °F 92% 30.04 in 10.0 mi NW 11.5 mph - 0.05 in   Overcast
5:19 PM 51.8 °F - 48.2 °F 88% 30.06 in 10.0 mi NW 15.0 mph 23.0 mph N/A   Overcast
5:26 PM 51.8 °F - 48.2 °F 88% 30.06 in 10.0 mi NW 13.8 mph 23.0 mph N/A   Overcast
5:54 PM 51.1 °F - 48.9 °F 92% 30.06 in 10.0 mi NW 11.5 mph 18.4 mph N/A   Overcast
6:12 PM 51.8 °F - 48.2 °F 88% 30.07 in 10.0 mi WNW 12.7 mph - N/A   Overcast
6:21 PM 51.8 °F - 48.2 °F 88% 30.07 in 10.0 mi WNW 11.5 mph - N/A   Overcast
6:34 PM 51.8 °F - 48.2 °F 88% 30.07 in 10.0 mi WNW 12.7 mph - N/A   Overcast
6:54 PM 51.1 °F - 50.0 °F 96% 30.06 in 10.0 mi NW 9.2 mph - N/A   Overcast
7:01 PM 51.8 °F - 50.0 °F 94% 30.07 in 10.0 mi Variable 5.8 mph - N/A   Overcast
7:09 PM 50.0 °F - 46.4 °F 87% 30.07 in 10.0 mi SE 3.5 mph - N/A   Overcast
7:54 PM 48.9 °F - 48.0 °F 97% 30.08 in 10.0 mi NW 10.4 mph 16.1 mph N/A   Overcast
8:51 PM 48.2 °F - 48.2 °F 100% 30.10 in 10.0 mi WNW 8.1 mph - 0.00 in   Overcast
8:54 PM 48.9 °F - 48.0 °F 97% 30.09 in 10.0 mi WNW 9.2 mph - 0.00 in   Overcast
9:25 PM 48.2 °F - 48.2 °F 100% 30.11 in 10.0 mi NW 8.1 mph - N/A   Overcast
9:54 PM 48.9 °F - 48.0 °F 97% 30.11 in 10.0 mi NW 6.9 mph - 0.00 in   Overcast
10:11 PM 48.2 °F - 46.4 °F 93% 30.11 in 10.0 mi WNW 11.5 mph - N/A   Overcast
10:24 PM 48.2 °F - 46.4 °F 93% 30.11 in 10.0 mi NW 8.1 mph - N/A   Overcast
10:54 PM 48.9 °F - 46.9 °F 93% 30.11 in 10.0 mi NW 9.2 mph - N/A   Overcast
11:20 PM 48.2 °F - 46.4 °F 93% 30.12 in 10.0 mi NW 4.6 mph - N/A   Overcast
11:29 PM 48.2 °F - 46.4 °F 93% 30.12 in 7.0 mi North 3.5 mph - 0.01 in Rain Light Rain
11:54 PM 48.0 °F - 46.9 °F 96% 30.12 in 10.0 mi Calm Calm - 0.02 in   Overcast