Weather History for Lewiston, ID

Change the Weather History Date:

Tuesday, August 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 81 °F 73 °F  
Max Temperature 94 °F 88 °F 110 °F (1897)
Min Temperature 67 °F 59 °F 45 °F (1945)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 74 77  
Since 1 July heating degree days 0 7  
Cooling Degree Days 16 8  
Month to date cooling degree days 333 216  
Year to date cooling degree days 854 646  
Since 1 June cooling degree days 827 614  
Growing Degree Days 30 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 32    
Maximum Humidity 44    
Minimum Humidity 20    
Precipitation  
Precipitation T in 0.03 in 0.18 in (1978)
Month to date precipitation T 0.45  
Year to date precipitation 11.26 8.29  
Snow  
Snow 0.00 in 0.00 in 0.00 in (1998)
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.80 in    
Wind  
Wind Speed 5 mph (SW)    
Max Wind Speed 25 mph    
Max Gust Speed 30 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

Aug. 21, 2012 Rise Set
Actual Time 5:55 AM PDT 7:46 PM PDT
Civil Twilight 5:22 AM PDT 8:18 PM PDT
Nautical Twilight 4:43 AM PDT 8:57 PM PDT
Astronomical Twilight 4:00 AM PDT 9:40 PM PDT
Moon 10:52 AM PDT (8/21) 9:26 PM PDT (8/21)
Length of Visible Light 14h 55m
Length of Day
13h 51m
Waxing Crescent, 20% of the Moon is Illuminated
Aug 21
Waxing Crescent
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 75.9 °F 39.9 °F 27% 29.80 in 10.0 mi South 5.8 mph - N/A   Clear
1:56 AM 73.9 °F 39.9 °F 29% 29.78 in 10.0 mi Calm Calm - N/A   Clear
2:56 AM 73.9 °F 39.9 °F 29% 29.79 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 71.1 °F 39.9 °F 32% 29.79 in 10.0 mi SSE 3.5 mph - N/A   Clear
4:56 AM 69.1 °F 42.1 °F 38% 29.80 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 68.0 °F 43.0 °F 40% 29.81 in 10.0 mi SE 5.8 mph - N/A   Clear
6:56 AM 71.1 °F 42.1 °F 35% 29.84 in 10.0 mi SSW 3.5 mph - N/A   Clear
7:48 AM 68.0 °F 48.2 °F 49% 29.87 in 10.0 mi ENE 10.4 mph - 0.00 in Rain Light Rain
7:56 AM 70.0 °F 46.9 °F 44% 29.84 in 10.0 mi SE 10.4 mph - 0.00 in   Mostly Cloudy
8:56 AM 79.0 °F 43.0 °F 28% 29.86 in 10.0 mi South 4.6 mph - N/A   Clear
9:56 AM 81.0 °F 46.0 °F 29% 29.87 in 10.0 mi Variable 4.6 mph - N/A   Clear
10:56 AM 84.0 °F 48.0 °F 28% 29.86 in 10.0 mi WSW 5.8 mph - N/A   Clear
11:56 AM 86.0 °F 48.9 °F 28% 29.83 in 10.0 mi Calm Calm - N/A   Clear
12:56 PM 88.0 °F 46.9 °F 24% 29.82 in 10.0 mi Calm Calm - N/A   Clear
1:56 PM 91.0 °F 46.9 °F 22% 29.79 in 10.0 mi Variable 3.5 mph - N/A   Clear
2:56 PM 91.9 °F 46.9 °F 21% 29.76 in 10.0 mi WSW 4.6 mph - N/A   Clear
3:56 PM 91.9 °F 46.0 °F 21% 29.75 in 10.0 mi Calm Calm - N/A   Clear
4:56 PM 93.0 °F 46.0 °F 20% 29.75 in 10.0 mi NW 6.9 mph - N/A   Clear
5:56 PM 91.0 °F 44.1 °F 20% 29.74 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
6:56 PM 87.1 °F 51.1 °F 29% 29.75 in 10.0 mi WNW 18.4 mph 25.3 mph N/A   Clear
7:56 PM 84.9 °F 50.0 °F 30% 29.78 in 10.0 mi WNW 11.5 mph - N/A   Clear
8:56 PM 82.9 °F 50.0 °F 32% 29.79 in 10.0 mi WNW 4.6 mph - N/A   Clear
9:56 PM 80.1 °F 48.0 °F 32% 29.80 in 10.0 mi SW 4.6 mph - N/A   Partly Cloudy
10:56 PM 78.1 °F 46.9 °F 33% 29.80 in 10.0 mi SSW 4.6 mph - N/A   Clear
11:56 PM 75.9 °F 46.9 °F 36% 29.82 in 10.0 mi West 4.6 mph - N/A   Clear