Weather History for Lewistown, MT

Change the Weather History Date:

Friday, May 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 52 °F 50 °F  
Max Temperature 57 °F 63 °F 87 °F (1948)
Min Temperature 46 °F 38 °F 27 °F (1930)
Degree Days  
Heating Degree Days 13 15  
Month to date heating degree days 231 290  
Since 1 July heating degree days 7644 7797  
Cooling Degree Days 0 0  
Month to date cooling degree days 3 0  
Year to date cooling degree days 3 0  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 83    
Maximum Humidity 100    
Minimum Humidity 66    
Precipitation  
Precipitation 0.23 in 0.10 in 1.54 in (1944)
Month to date precipitation 0.92 1.35  
Year to date precipitation 4.28 4.76  
Snow  
Snow 0.00 in - - ()
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 5 mph (West)    
Max Wind Speed 13 mph    
Max Gust Speed 15 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily 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

May. 17, 2013 Rise Set
Actual Time 5:39 AM MDT 8:49 PM MDT
Civil Twilight 5:03 AM MDT 9:26 PM MDT
Nautical Twilight 4:15 AM MDT 10:13 PM MDT
Astronomical Twilight 3:17 AM MDT 11:13 PM MDT
Moon 12:27 PM MDT (5/17) 1:33 AM MDT (5/17)
Length of Visible Light 16h 23m
Length of Day
15h 10m
Waxing Crescent, 46% of the Moon is Illuminated
May 17
Waxing Crescent
May 17
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 46.9 °F 45.0 °F 93% 29.85 in 10.0 mi SSE 4.6 mph - N/A   Scattered Clouds
1:54 AM 46.9 °F 45.0 °F 93% 29.83 in 10.0 mi SE 3.5 mph - N/A   Overcast
2:54 AM 46.0 °F 44.1 °F 93% 29.84 in 10.0 mi Calm Calm - N/A   Overcast
3:54 AM 46.9 °F 44.1 °F 90% 29.86 in 10.0 mi Calm Calm - N/A   Overcast
4:54 AM 46.9 °F 44.1 °F 90% 29.86 in 10.0 mi WSW 6.9 mph - N/A   Overcast
6:54 AM 46.9 °F 43.0 °F 86% 29.88 in 10.0 mi WSW 6.9 mph - N/A   Clear
7:54 AM 48.0 °F 44.1 °F 86% 29.88 in 10.0 mi SW 4.6 mph - N/A   Mostly Cloudy
8:54 AM 51.1 °F 45.0 °F 80% 29.88 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
9:54 AM 53.1 °F 45.0 °F 74% 29.87 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:54 AM 55.9 °F 45.0 °F 67% 29.87 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:17 AM 55.4 °F 44.6 °F 67% 29.90 in 10.0 mi West 3.5 mph - N/A   Overcast
11:54 AM 57.0 °F 46.0 °F 67% 29.86 in 10.0 mi NNW 4.6 mph - N/A   Overcast
12:11 PM 55.4 °F 42.8 °F 63% 29.90 in 10.0 mi East 9.2 mph - N/A   Overcast
1:54 PM 55.9 °F 45.0 °F 67% 29.85 in 10.0 mi ESE 6.9 mph - N/A   Overcast
2:54 PM 57.0 °F 46.0 °F 67% 29.83 in 10.0 mi ESE 6.9 mph - 0.00 in Rain Light Rain
3:54 PM 57.0 °F 46.0 °F 67% 29.84 in 10.0 mi ESE 8.1 mph - 0.00 in   Overcast
4:54 PM 55.0 °F 48.0 °F 77% 29.84 in 8.0 mi East 6.9 mph - 0.02 in Rain Light Rain
5:54 PM 55.9 °F 46.9 °F 72% 29.84 in 10.0 mi East 5.8 mph - 0.00 in   Overcast
6:54 PM 54.0 °F 46.0 °F 75% 29.85 in 10.0 mi East 3.5 mph - 0.00 in   Overcast
7:54 PM 54.0 °F 46.9 °F 77% 29.85 in 10.0 mi East 3.5 mph - N/A   Overcast
8:54 PM 53.1 °F 48.0 °F 83% 29.86 in 10.0 mi Calm Calm - N/A   Overcast
9:24 PM 51.8 °F 48.2 °F 88% 29.90 in 10.0 mi NNW 4.6 mph - N/A   Overcast
9:38 PM 51.8 °F 46.4 °F 82% 29.90 in 10.0 mi WNW 5.8 mph - N/A   Overcast
9:54 PM 51.1 °F 48.9 °F 92% 29.87 in 10.0 mi NW 6.9 mph - N/A   Overcast
10:41 PM 50.0 °F 48.2 °F 94% 29.91 in 10.0 mi WNW 9.2 mph - 0.00 in Rain Light Rain
10:54 PM 50.0 °F 48.0 °F 93% 29.87 in 10.0 mi WNW 9.2 mph - 0.00 in Rain Light Rain
11:33 PM 48.2 °F 48.2 °F 100% 29.92 in 6.0 mi WNW 8.1 mph - 0.05 in Rain Light Rain
11:45 PM 48.2 °F 48.2 °F 100% 29.92 in 7.0 mi West 8.1 mph - 0.07 in Rain Light Rain
11:54 PM 48.9 °F 48.0 °F 97% 29.88 in 6.0 mi West 8.1 mph - 0.08 in Rain Rain