Weather History for Portland Hillsboro, OR

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Tuesday, May 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 51 °F 57 °F  
Max Temperature 58 °F 69 °F 91 °F (1958)
Min Temperature 44 °F 45 °F 32 °F (1935)
Degree Days  
Heating Degree Days 14 8  
Month to date heating degree days 144 212  
Since 1 July heating degree days 4531 4774  
Cooling Degree Days 0 0  
Month to date cooling degree days 6 0  
Year to date cooling degree days 6 0  
Moisture  
Dew Point 43 °F    
Average Humidity 75    
Maximum Humidity 89    
Minimum Humidity 61    
Precipitation  
Precipitation 0.31 in 0.06 in 0.49 in (1953)
Month to date precipitation 1.01 1.64  
Year to date precipitation 8.49 18.85  
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 29.90 in    
Wind  
Wind Speed 7 mph (WSW)    
Max Wind Speed 21 mph    
Max Gust Speed 27 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 21, 2013 Rise Set
Actual Time 5:34 AM PDT 8:43 PM PDT
Civil Twilight 4:58 AM PDT 9:18 PM PDT
Nautical Twilight 4:13 AM PDT 10:04 PM PDT
Astronomical Twilight 3:17 AM PDT 11:01 PM PDT
Moon 4:53 PM PDT (5/21) 3:17 AM PDT (5/21)
Length of Visible Light 16h 19m
Length of Day
15h 08m
Waxing Gibbous, 85% of the Moon is Illuminated
May 21
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First 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 53.1 °F - 45.0 °F 74% 29.91 in 10.0 mi WSW 5.8 mph - N/A   Overcast
1:53 AM 52.0 °F - 45.0 °F 77% 29.90 in 10.0 mi WNW 4.6 mph - N/A   Overcast
2:53 AM 50.0 °F - 45.0 °F 83% 29.90 in 10.0 mi WNW 4.6 mph - 0.00 in Rain Light Rain
3:53 AM 48.9 °F - 45.0 °F 86% 29.90 in 10.0 mi Calm Calm - 0.02 in Rain Light Rain
4:41 AM 48.9 °F - 45.0 °F 86% 29.90 in 10.0 mi West 4.6 mph - 0.01 in   Overcast
4:53 AM 48.0 °F - 45.0 °F 89% 29.89 in 10.0 mi NW 3.5 mph - 0.01 in   Overcast
5:39 AM 48.0 °F - 45.0 °F 89% 29.89 in 10.0 mi South 4.6 mph - 0.00 in Rain Light Rain
5:53 AM 48.9 °F - 45.0 °F 86% 29.89 in 10.0 mi SW 5.8 mph - 0.00 in   Overcast
6:53 AM 48.0 °F - 45.0 °F 89% 29.88 in 10.0 mi West 8.1 mph - N/A   Overcast
7:53 AM 48.9 °F - 44.1 °F 83% 29.87 in 10.0 mi SW 4.6 mph - N/A   Overcast
8:53 AM 50.0 °F - 45.0 °F 83% 29.87 in 10.0 mi West 4.6 mph - N/A   Overcast
9:53 AM 51.1 °F - 45.0 °F 80% 29.86 in 10.0 mi Variable 5.8 mph - N/A   Overcast
10:53 AM 54.0 °F - 44.1 °F 69% 29.85 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
11:53 AM 55.9 °F - 42.1 °F 60% 29.83 in 10.0 mi WSW 10.4 mph - 0.00 in   Mostly Cloudy
12:53 PM 51.1 °F - 46.0 °F 83% 29.85 in 5.0 mi North 9.2 mph - 0.13 in Rain Heavy Rain
1:53 PM 53.1 °F - 42.1 °F 66% 29.85 in 10.0 mi NW 17.3 mph 27.6 mph 0.07 in   Overcast
2:53 PM 51.1 °F - 41.0 °F 68% 29.87 in 10.0 mi NW 17.3 mph - 0.00 in Rain Light Rain
3:53 PM 48.9 °F - 42.1 °F 77% 29.91 in 10.0 mi NW 9.2 mph - 0.01 in Rain Light Rain
4:53 PM 50.0 °F - 43.0 °F 77% 29.93 in 10.0 mi SSW 6.9 mph - 0.01 in Rain Light Rain
5:53 PM 48.0 °F - 43.0 °F 83% 29.95 in 6.0 mi SSW 5.8 mph - 0.04 in Rain Light Rain
6:53 PM 46.9 °F - 43.0 °F 86% 29.95 in 10.0 mi SSW 6.9 mph - 0.02 in Rain Light Rain
7:53 PM 46.9 °F - 39.9 °F 77% 29.96 in 10.0 mi SW 8.1 mph - 0.00 in   Mostly Cloudy
8:53 PM 46.0 °F 43.9 °F 39.9 °F 79% 29.97 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
9:53 PM 45.0 °F 40.6 °F 41.0 °F 86% 29.98 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
10:53 PM 44.1 °F 39.5 °F 41.0 °F 89% 29.98 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
11:53 PM 44.1 °F 40.8 °F 39.9 °F 85% 29.98 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy