Weather History for Portland, OR

Change the Weather History Date:

Monday, March 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 46 °F 49 °F  
Max Temperature 54 °F 57 °F 71 °F (1988)
Min Temperature 37 °F 40 °F 28 °F (1943)
Degree Days  
Heating Degree Days 19 16  
Month to date heating degree days 308 321  
Since 1 July heating degree days 3205 3379  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 35 °F    
Average Humidity 68    
Maximum Humidity 85    
Minimum Humidity 50    
Precipitation  
Precipitation 0.00 in 0.11 in 0.69 in (1997)
Month to date precipitation 0.55 2.26  
Year to date precipitation 5.30 10.80  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.26 in    
Wind  
Wind Speed 3 mph (SSW)    
Max Wind Speed 12 mph    
Max Gust Speed 17 mph    
Visibility 10 miles    
Events      
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

Mar. 18, 2013 Rise Set
Actual Time 7:16 AM PDT 7:20 PM PDT
Civil Twilight 6:47 AM PDT 7:50 PM PDT
Nautical Twilight 6:12 AM PDT 8:25 PM PDT
Astronomical Twilight 5:37 AM PDT 9:00 PM PDT
Moon 11:03 AM PDT (3/18) 1:41 AM PDT (3/18)
Length of Visible Light 13h 03m
Length of Day
12h 04m
Waxing Crescent, 41% of the Moon is Illuminated
Mar 18
Waxing Crescent
Mar 19
First Quarter
Mar 27
Full
Apr 2
Last Quarter
Apr 10
New

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 42.1 °F - 34.0 °F 73% 30.27 in 10.0 mi Calm Calm - N/A   Overcast
1:53 AM 41.0 °F 39.0 °F 36.0 °F 82% 30.27 in 10.0 mi East 3.5 mph - N/A   Overcast
2:53 AM 37.9 °F 35.5 °F 33.1 °F 83% 30.27 in 10.0 mi South 3.5 mph - N/A   Clear
3:53 AM 37.9 °F 35.5 °F 33.1 °F 83% 30.27 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
4:53 AM 39.9 °F - 34.0 °F 79% 30.28 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:53 AM 37.9 °F - 34.0 °F 86% 30.28 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:53 AM 39.0 °F 36.8 °F 34.0 °F 82% 30.29 in 10.0 mi South 3.5 mph - N/A   Overcast
7:53 AM 39.9 °F 37.8 °F 35.1 °F 83% 30.29 in 10.0 mi South 3.5 mph - N/A   Overcast
8:53 AM 41.0 °F 38.0 °F 35.1 °F 79% 30.28 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
9:53 AM 44.1 °F 40.1 °F 36.0 °F 73% 30.30 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
10:53 AM 46.0 °F 41.0 °F 35.1 °F 66% 30.29 in 10.0 mi SSW 10.4 mph - N/A   Scattered Clouds
11:53 AM 48.0 °F - 34.0 °F 58% 30.28 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
12:53 PM 48.9 °F - 34.0 °F 56% 30.28 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
1:53 PM 52.0 °F - 33.1 °F 49% 30.27 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
2:53 PM 52.0 °F - 36.0 °F 54% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
3:53 PM 52.0 °F - 34.0 °F 50% 30.25 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
4:53 PM 52.0 °F - 36.0 °F 54% 30.25 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
5:53 PM 52.0 °F - 36.0 °F 54% 30.23 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:53 PM 50.0 °F - 36.0 °F 59% 30.22 in 10.0 mi Calm Calm - N/A   Overcast
7:53 PM 48.0 °F - 36.0 °F 63% 30.21 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
8:53 PM 45.0 °F - 36.0 °F 71% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:53 PM 43.0 °F - 36.0 °F 76% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:53 PM 43.0 °F - 37.0 °F 80% 30.21 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:53 PM 39.9 °F - 36.0 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds