Weather History for Hilo, HI

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Thursday, December 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 73 °F 72 °F  
Max Temperature 81 °F 79 °F 87 °F (1980)
Min Temperature 65 °F 65 °F 60 °F (1953)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 July heating degree days 0 0  
Cooling Degree Days 8 7  
Month to date cooling degree days 108 93  
Year to date cooling degree days 3384 3100  
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 65 °F    
Average Humidity 81    
Maximum Humidity 93    
Minimum Humidity 68    
Precipitation  
Precipitation T in 0.41 in 6.56 in (1987)
Month to date precipitation 1.16 4.85  
Year to date precipitation 83.14 120.00  
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 30.04 in    
Wind  
Wind Speed 8 mph (South)    
Max Wind Speed 16 mph    
Max Gust Speed 21 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 12, 2013 Rise Set
Actual Time 6:45 AM HST 5:42 PM HST
Civil Twilight 6:21 AM HST 6:06 PM HST
Nautical Twilight 5:54 AM HST 6:34 PM HST
Astronomical Twilight 5:27 AM HST 7:01 PM HST
Moon 2:34 PM HST (12/12) 2:44 AM HST (12/12)
Length of Visible Light 11h 45m
Length of Day
10h 57m
Waxing Gibbous, 82% of the Moon is Illuminated
Dec 12
Waxing Gibbous
Dec 16
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Hourly Weather History & Observations

Time (HST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 66.0 °F - 60.1 °F 81% 30.06 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
1:53 AM 66.9 °F - 57.9 °F 73% 30.05 in 10.0 mi WSW 10.4 mph - N/A   Partly Cloudy
2:53 AM 66.9 °F - 57.0 °F 70% 30.04 in 10.0 mi WSW 9.2 mph - N/A   Partly Cloudy
3:53 AM 66.0 °F - 57.9 °F 75% 30.03 in 10.0 mi WSW 8.1 mph - N/A   Partly Cloudy
4:53 AM 66.0 °F - 60.1 °F 81% 30.03 in 10.0 mi WSW 8.1 mph - N/A   Partly Cloudy
5:53 AM 66.0 °F - 62.1 °F 87% 30.05 in 10.0 mi WSW 8.1 mph - 0.00 in   Mostly Cloudy
6:53 AM 66.0 °F - 63.0 °F 90% 30.06 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
7:53 AM 70.0 °F - 61.0 °F 73% 30.08 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
8:53 AM 75.9 °F - 66.0 °F 71% 30.09 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
9:53 AM 73.9 °F - 69.1 °F 85% 30.10 in 10.0 mi Variable 5.8 mph - N/A   Scattered Clouds
10:53 AM 77.0 °F - 70.0 °F 79% 30.08 in 10.0 mi SE 10.4 mph - N/A   Mostly Cloudy
11:53 AM 75.9 °F - 69.1 °F 79% 30.05 in 10.0 mi SSE 10.4 mph 19.6 mph N/A   Mostly Cloudy
12:53 PM 81.0 °F 84.1 °F 69.1 °F 67% 30.00 in 10.0 mi SE 11.5 mph - N/A   Mostly Cloudy
1:23 PM 79.0 °F - 69.1 °F 72% 29.99 in 10.0 mi SE 12.7 mph - N/A   Overcast
1:53 PM 78.1 °F - 70.0 °F 76% 29.97 in 10.0 mi ESE 12.7 mph - N/A   Mostly Cloudy
2:53 PM 78.1 °F - 69.1 °F 74% 29.97 in 10.0 mi ESE 12.7 mph - N/A   Overcast
3:53 PM 77.0 °F - 69.1 °F 76% 29.98 in 10.0 mi SE 13.8 mph - N/A   Mostly Cloudy
4:53 PM 75.9 °F - 68.0 °F 76% 29.99 in 10.0 mi SE 11.5 mph - N/A   Mostly Cloudy
5:53 PM 73.9 °F - 68.0 °F 82% 30.02 in 10.0 mi South 4.6 mph - N/A   Scattered Clouds
6:53 PM 73.0 °F - 69.1 °F 87% 30.05 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:53 PM 71.1 °F - 68.0 °F 90% 30.07 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
8:53 PM 71.1 °F - 66.9 °F 87% 30.09 in 10.0 mi SSW 4.6 mph - N/A   Partly Cloudy
9:53 PM 70.0 °F - 66.0 °F 87% 30.11 in 10.0 mi SSW 4.6 mph - N/A   Clear
10:53 PM 68.0 °F - 66.0 °F 93% 30.09 in 10.0 mi SW 3.5 mph - N/A   Clear
11:53 PM 68.0 °F - 66.0 °F 93% 30.08 in 10.0 mi SW 6.9 mph - N/A   Clear