Weather History for Portland, OR

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Thursday, May 23, 2013

  Actual Average Record
Temperature  
Mean Temperature 51 °F 60 °F  
Max Temperature 55 °F 70 °F 90 °F (1947)
Min Temperature 47 °F 50 °F 35 °F (1964)
Degree Days  
Heating Degree Days 14 6  
Month to date heating degree days 119 181  
Since 1 July heating degree days 3886 4144  
Cooling Degree Days 0 1  
Month to date cooling degree days 15 4  
Year to date cooling degree days 15 5  
Moisture  
Dew Point 45 °F    
Average Humidity 82    
Maximum Humidity 93    
Minimum Humidity 71    
Precipitation  
Precipitation 0.42 in 0.08 in 0.96 in (1997)
Month to date precipitation 2.61 1.79  
Year to date precipitation 11.01 16.74  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.01 in    
Wind  
Wind Speed 11 mph (South)    
Max Wind Speed 16 mph    
Max Gust Speed 23 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 23, 2013 Rise Set
Actual Time 5:31 AM PDT 8:44 PM PDT
Civil Twilight 4:55 AM PDT 9:20 PM PDT
Nautical Twilight 4:08 AM PDT 10:06 PM PDT
Astronomical Twilight 3:11 AM PDT 11:04 PM PDT
Moon 7:19 PM PDT (5/23) 4:25 AM PDT (5/23)
Length of Visible Light 16h 24m
Length of Day
15h 12m
Waxing Gibbous, 97% of the Moon is Illuminated
May 23
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
12:12 AM 48.2 °F - 44.6 °F 87% 29.97 in 5.0 mi SSW 16.1 mph 25.3 mph 0.06 in Rain Rain
12:33 AM 46.4 °F 41.5 °F 44.6 °F 93% 29.97 in 4.0 mi SSW 10.4 mph - 0.15 in Rain Rain
12:53 AM 46.9 °F - 45.0 °F 93% 29.98 in 4.0 mi SSW 11.5 mph - 0.20 in Rain Rain
1:53 AM 46.9 °F - 44.1 °F 90% 29.98 in 6.0 mi SSW 13.8 mph 21.9 mph 0.08 in Rain Light Rain
2:31 AM 46.4 °F 40.7 °F 44.6 °F 93% 29.98 in 7.0 mi South 12.7 mph - 0.12 in Rain Light Rain
2:49 AM 46.4 °F 40.7 °F 44.6 °F 93% 29.98 in 10.0 mi South 12.7 mph - 0.14 in Rain Light Rain
2:53 AM 46.9 °F - 44.1 °F 90% 29.99 in 10.0 mi South 11.5 mph - 0.14 in   Overcast
3:53 AM 46.9 °F - 44.1 °F 90% 29.99 in 10.0 mi South 9.2 mph - 0.00 in Rain Light Rain
4:39 AM 46.4 °F 42.4 °F 44.6 °F 93% 29.99 in 10.0 mi South 8.1 mph - 0.00 in   Overcast
4:53 AM 46.9 °F - 44.1 °F 90% 29.99 in 10.0 mi South 8.1 mph - 0.00 in   Overcast
5:53 AM 46.9 °F - 44.1 °F 90% 30.00 in 10.0 mi South 10.4 mph - 0.00 in Rain Light Rain
6:36 AM 46.4 °F 42.4 °F 44.6 °F 93% 30.01 in 10.0 mi South 8.1 mph - 0.00 in   Overcast
6:53 AM 46.9 °F - 44.1 °F 90% 30.01 in 10.0 mi South 8.1 mph - 0.00 in Rain Light Rain
7:53 AM 46.9 °F - 44.1 °F 90% 30.02 in 10.0 mi South 6.9 mph - 0.01 in Rain Light Rain
8:53 AM 48.0 °F - 44.1 °F 86% 30.03 in 5.0 mi SSE 11.5 mph 17.3 mph 0.02 in Rain Light Rain
9:53 AM 48.0 °F - 45.0 °F 89% 30.03 in 10.0 mi South 10.4 mph - 0.03 in Rain Light Rain
10:39 AM 48.2 °F - 44.6 °F 87% 30.03 in 10.0 mi SSE 10.4 mph - 0.01 in   Overcast
10:53 AM 50.0 °F - 45.0 °F 83% 30.03 in 10.0 mi South 9.2 mph - 0.01 in   Overcast
11:53 AM 52.0 °F - 46.0 °F 80% 30.03 in 10.0 mi SSE 8.1 mph 17.3 mph N/A   Overcast
12:53 PM 54.0 °F - 45.0 °F 72% 30.02 in 10.0 mi South 13.8 mph 19.6 mph N/A   Overcast
1:53 PM 54.0 °F - 44.1 °F 69% 30.03 in 10.0 mi South 13.8 mph 18.4 mph N/A   Overcast
2:53 PM 55.0 °F - 45.0 °F 69% 30.02 in 10.0 mi South 10.4 mph - 0.00 in Rain Light Rain
3:50 PM 51.8 °F - 46.4 °F 82% 30.04 in 1.5 mi WSW 11.5 mph - 0.05 in Rain Light Rain
3:53 PM 51.1 °F - 46.0 °F 83% 30.04 in 2.0 mi SW 9.2 mph - 0.06 in Rain Rain
4:02 PM 51.8 °F - 46.4 °F 82% 30.03 in 3.0 mi South 4.6 mph - 0.04 in Rain Light Rain
4:53 PM 52.0 °F - 46.9 °F 83% 30.02 in 9.0 mi South 6.9 mph - 0.05 in Rain Light Rain
5:53 PM 52.0 °F - 48.0 °F 86% 30.02 in 10.0 mi SSE 6.9 mph - 0.01 in   Overcast
6:53 PM 52.0 °F - 48.0 °F 86% 30.01 in 9.0 mi SSW 6.9 mph - 0.03 in Rain Light Rain
7:53 PM 50.0 °F - 48.0 °F 93% 30.01 in 9.0 mi SE 8.1 mph - 0.03 in Rain Light Rain
8:40 PM 50.0 °F - 48.2 °F 94% 30.00 in 7.0 mi SE 10.4 mph - 0.08 in Rain Light Rain
8:53 PM 50.0 °F - 46.9 °F 89% 30.00 in 7.0 mi SE 8.1 mph - 0.10 in Rain Light Rain
9:53 PM 48.9 °F - 46.9 °F 93% 30.01 in 7.0 mi SSE 10.4 mph - 0.07 in Rain Light Rain
10:53 PM 48.9 °F - 46.0 °F 90% 30.00 in 10.0 mi SE 9.2 mph - 0.03 in Rain Light Rain
11:27 PM 48.2 °F - 46.4 °F 93% 30.00 in 10.0 mi SSE 10.4 mph - 0.01 in Rain Light Rain
11:42 PM 48.2 °F - 46.4 °F 93% 30.00 in 10.0 mi SE 8.1 mph - 0.01 in Rain Light Rain
11:53 PM 48.0 °F - 45.0 °F 89% 30.00 in 10.0 mi SE 8.1 mph - 0.01 in Rain Light Rain