Weather History for Portland Hillsboro, OR

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Saturday, December 29, 2012

  Actual Average Record
Temperature  
Mean Temperature 34 °F 38 °F  
Max Temperature 38 °F 45 °F 58 °F (1945)
Min Temperature 30 °F 32 °F 13 °F (1990)
Degree Days  
Heating Degree Days 31 27  
Month to date heating degree days 684 765  
Since 1 July heating degree days 1791 2066  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 232 198  
Moisture  
Dew Point 31 °F    
Average Humidity 85    
Maximum Humidity 100    
Minimum Humidity 70    
Precipitation  
Precipitation T in 0.21 in 2.04 in (1937)
Month to date precipitation 7.49 6.32  
Year to date precipitation 43.02 39.48  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 1 mph (WNW)    
Max Wind Speed 6 mph    
Max Gust Speed 8 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 29, 2012 Rise Set
Actual Time 7:51 AM PST 4:36 PM PST
Civil Twilight 7:17 AM PST 5:10 PM PST
Nautical Twilight 6:40 AM PST 5:48 PM PST
Astronomical Twilight 6:04 AM PST 6:24 PM PST
Moon 6:20 PM PST (12/29) 8:23 AM PST (12/29)
Length of Visible Light 9h 53m
Length of Day
8h 44m
Full, 98% of the Moon is Illuminated
Dec 29
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 33.1 °F - 30.0 °F 89% 30.19 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:53 AM 33.1 °F - 30.0 °F 89% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
2:53 AM 30.9 °F - 30.0 °F 96% 30.20 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:53 AM 30.9 °F - 30.0 °F 96% 30.21 in 10.0 mi Calm Calm - N/A   Overcast
4:53 AM 30.9 °F - 28.9 °F 92% 30.21 in 10.0 mi Calm Calm - N/A   Overcast
5:53 AM 32.0 °F - 30.0 °F 92% 30.21 in 10.0 mi Calm Calm - N/A   Overcast
6:53 AM 30.9 °F - 30.0 °F 96% 30.22 in 10.0 mi Calm Calm - N/A   Overcast
7:53 AM 30.9 °F - 30.0 °F 96% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
8:53 AM 33.1 °F 30.0 °F 30.9 °F 92% 30.24 in 10.0 mi WNW 3.5 mph - N/A   Overcast
9:53 AM 35.1 °F - 32.0 °F 89% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
10:53 AM 37.0 °F - 30.0 °F 76% 30.24 in 10.0 mi Calm Calm - N/A   Overcast
11:53 AM 37.0 °F 34.5 °F 28.0 °F 70% 30.21 in 10.0 mi SE 3.5 mph - N/A   Overcast
12:53 PM 37.9 °F - 28.0 °F 68% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
1:53 PM 37.9 °F 35.5 °F 30.0 °F 73% 30.19 in 10.0 mi NW 3.5 mph - N/A   Overcast
2:53 PM 37.9 °F 34.4 °F 32.0 °F 79% 30.17 in 10.0 mi WSW 4.6 mph - N/A   Overcast
3:14 PM 37.9 °F 35.5 °F 30.9 °F 76% 30.17 in 10.0 mi WNW 3.5 mph - N/A   Overcast
3:49 PM 37.4 °F - 30.2 °F 75% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
3:53 PM 37.9 °F - 30.9 °F 76% 30.17 in 10.0 mi Calm Calm - N/A   Overcast
4:53 PM 37.0 °F - 32.0 °F 82% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
5:00 PM 37.0 °F - 32.0 °F 82% 30.17 in 10.0 mi Calm Calm - N/A   Overcast
5:53 PM 37.0 °F - 33.1 °F 86% 30.17 in 10.0 mi Calm Calm - 0.00 in   Overcast
6:53 PM 37.0 °F - 34.0 °F 89% 30.19 in 10.0 mi Calm Calm - 0.00 in   Overcast
7:53 PM 37.0 °F - 34.0 °F 89% 30.19 in 9.0 mi Calm Calm - 0.00 in   Overcast
8:53 PM 36.0 °F - 34.0 °F 93% 30.19 in 9.0 mi Calm Calm - N/A   Overcast
9:53 PM 35.1 °F - 34.0 °F 96% 30.20 in 7.0 mi Calm Calm - N/A   Overcast
10:53 PM 36.0 °F - 34.0 °F 93% 30.22 in 8.0 mi Calm Calm - N/A   Overcast
11:22 PM 36.0 °F - 35.1 °F 97% 30.22 in 7.0 mi Calm Calm - N/A   Overcast
11:53 PM 36.0 °F 33.3 °F 34.0 °F 93% 30.24 in 7.0 mi NNE 3.5 mph - N/A   Overcast