Weather History for Portland Hillsboro, OR

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Thursday, September 13, 2012

  Actual Average Record
Temperature  
Mean Temperature 66 °F 61 °F  
Max Temperature 89 °F 76 °F 92 °F (1989)
Min Temperature 42 °F 47 °F 31 °F (1970)
Degree Days  
Heating Degree Days 0 4  
Month to date heating degree days 40 44  
Since 1 July heating degree days 113 151  
Cooling Degree Days 1 1  
Month to date cooling degree days 19 15  
Year to date cooling degree days 219 193  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 39 °F    
Average Humidity 46    
Maximum Humidity 76    
Minimum Humidity 16    
Precipitation  
Precipitation 0.00 in 0.03 in 0.49 in (1955)
Month to date precipitation 0.01 0.40  
Year to date precipitation 22.46 22.47  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Since 1 September snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 3 mph (NW)    
Max Wind Speed 9 mph    
Max Gust Speed 13 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 13, 2012 Rise Set
Actual Time 6:48 AM PDT 7:25 PM PDT
Civil Twilight 6:18 AM PDT 7:55 PM PDT
Nautical Twilight 5:43 AM PDT 8:30 PM PDT
Astronomical Twilight 5:06 AM PDT 9:07 PM PDT
Moon 4:08 AM PDT (9/13) 5:55 PM PDT (9/13)
Length of Visible Light 13h 36m
Length of Day
12h 37m
Waning Crescent, 7% of the Moon is Illuminated
Sep 13
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

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 48.0 °F - 37.9 °F 68% 30.14 in 10.0 mi WNW 5.8 mph - N/A   Clear
1:53 AM 46.0 °F 44.8 °F 37.9 °F 73% 30.14 in 10.0 mi WNW 3.5 mph - N/A   Clear
2:53 AM 46.9 °F - 37.9 °F 71% 30.13 in 10.0 mi NW 3.5 mph - N/A   Clear
3:53 AM 46.0 °F - 37.0 °F 71% 30.12 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 44.1 °F - 36.0 °F 73% 30.12 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 45.0 °F 42.6 °F 37.0 °F 74% 30.12 in 10.0 mi WNW 4.6 mph - N/A   Clear
6:53 AM 45.0 °F 42.6 °F 36.0 °F 71% 30.12 in 10.0 mi NW 4.6 mph - N/A   Clear
7:53 AM 50.0 °F - 37.9 °F 63% 30.12 in 10.0 mi WNW 5.8 mph - N/A   Clear
8:53 AM 57.9 °F - 39.0 °F 49% 30.12 in 10.0 mi WNW 3.5 mph - N/A   Clear
9:53 AM 69.1 °F - 39.9 °F 35% 30.12 in 10.0 mi WNW 3.5 mph - N/A   Clear
10:53 AM 78.1 °F - 34.0 °F 20% 30.11 in 10.0 mi East 6.9 mph - N/A   Clear
11:53 AM 81.0 °F - 35.1 °F 19% 30.10 in 10.0 mi ESE 5.8 mph - N/A   Clear
12:53 PM 82.9 °F - 36.0 °F 19% 30.08 in 10.0 mi Variable 4.6 mph - 0.00 in   Clear
1:53 PM 84.9 °F - 35.1 °F 17% 30.06 in 10.0 mi Calm Calm - N/A   Clear
2:53 PM 87.1 °F - 36.0 °F 16% 30.04 in 10.0 mi Variable 3.5 mph - N/A   Clear
3:53 PM 88.0 °F - 36.0 °F 16% 30.02 in 10.0 mi Calm Calm - N/A   Clear
5:53 PM 87.1 °F - 39.9 °F 19% 30.00 in 10.0 mi North 5.8 mph - N/A   Clear
6:53 PM 81.0 °F - 46.0 °F 29% 30.00 in 10.0 mi Calm Calm - N/A   Clear
7:53 PM 73.0 °F - 43.0 °F 34% 30.01 in 10.0 mi Calm Calm - N/A   Clear
8:53 PM 64.9 °F - 46.0 °F 50% 30.03 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 60.1 °F - 46.0 °F 60% 30.04 in 10.0 mi NW 4.6 mph - N/A   Clear
10:53 PM 59.0 °F - 46.0 °F 62% 30.04 in 10.0 mi NW 3.5 mph - N/A   Clear
11:53 PM 55.9 °F - 46.0 °F 69% 30.05 in 10.0 mi Calm Calm - N/A   Clear