Weather History for Hilo, HI

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 70 °F 71 °F  
Max Temperature 78 °F 79 °F 87 °F (1968)
Min Temperature 62 °F 64 °F 54 °F (1980)
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 5 6  
Month to date cooling degree days 134 137  
Year to date cooling degree days 134 137  
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 60    
Maximum Humidity 73    
Minimum Humidity 47    
Precipitation  
Precipitation T in 0.33 in 2.76 in (1979)
Month to date precipitation 7.66 5.93  
Year to date precipitation 7.66 5.93  
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 30.09 in    
Wind  
Wind Speed 10 mph (NNW)    
Max Wind Speed 17 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 21, 2013 Rise Set
Actual Time 6:57 AM HST 6:06 PM HST
Civil Twilight 6:34 AM HST 6:29 PM HST
Nautical Twilight 6:07 AM HST 6:56 PM HST
Astronomical Twilight 5:40 AM HST 7:22 PM HST
Moon 1:56 PM HST (1/21) 2:33 AM HST (1/21)
Length of Visible Light 11h 55m
Length of Day
11h 08m
Waxing Gibbous, 76% of the Moon is Illuminated
Jan 21
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 9
New
Feb 17
First Quarter

Hourly Weather History & Observations

Time (HST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 64.0 °F 54.0 °F 70% 30.05 in 10.0 mi NW 3.5 mph - N/A   Partly Cloudy
1:53 AM 62.1 °F 54.0 °F 75% 30.04 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
2:53 AM 66.0 °F 57.9 °F 75% 30.03 in 10.0 mi NW 8.1 mph - N/A   Clear
3:53 AM 68.0 °F 55.9 °F 65% 30.04 in 10.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
4:53 AM 70.0 °F 57.0 °F 63% 30.05 in 10.0 mi NNW 11.5 mph - N/A   Overcast
5:53 AM 69.1 °F 57.0 °F 65% 30.07 in 10.0 mi NNW 10.4 mph - N/A   Overcast
6:53 AM 70.0 °F 55.9 °F 61% 30.09 in 10.0 mi NNW 12.7 mph - N/A   Mostly Cloudy
7:53 AM 70.0 °F 55.9 °F 61% 30.11 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
8:53 AM 72.0 °F 57.0 °F 59% 30.13 in 10.0 mi NNW 10.4 mph - N/A   Overcast
9:53 AM 73.9 °F 57.0 °F 55% 30.14 in 10.0 mi North 11.5 mph - N/A   Overcast
10:53 AM 73.9 °F 57.0 °F 55% 30.13 in 10.0 mi North 11.5 mph - N/A   Overcast
11:53 AM 75.9 °F 57.9 °F 54% 30.12 in 10.0 mi NNE 12.7 mph - N/A   Mostly Cloudy
12:53 PM 77.0 °F 55.0 °F 47% 30.09 in 10.0 mi North 10.4 mph - N/A   Scattered Clouds
1:53 PM 77.0 °F 55.9 °F 48% 30.06 in 10.0 mi North 12.7 mph - N/A   Partly Cloudy
2:53 PM 77.0 °F 57.9 °F 52% 30.06 in 10.0 mi NNE 16.1 mph - N/A   Partly Cloudy
3:53 PM 75.9 °F 59.0 °F 56% 30.06 in 10.0 mi North 13.8 mph - N/A   Clear
4:53 PM 75.0 °F 57.9 °F 55% 30.06 in 10.0 mi North 8.1 mph - N/A   Clear
5:53 PM 72.0 °F 57.9 °F 61% 30.09 in 10.0 mi North 12.7 mph - N/A   Clear
6:53 PM 72.0 °F 59.0 °F 64% 30.11 in 10.0 mi NNE 10.4 mph - N/A   Scattered Clouds
7:53 PM 69.1 °F 59.0 °F 70% 30.12 in 10.0 mi NW 9.2 mph - 0.00 in   Clear
8:53 PM 68.0 °F 59.0 °F 73% 30.14 in 10.0 mi WNW 5.8 mph - N/A   Clear
9:53 PM 69.1 °F 59.0 °F 70% 30.15 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
10:53 PM 66.9 °F 57.9 °F 73% 30.14 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
11:53 PM 63.0 °F 55.9 °F 78% 30.13 in 10.0 mi WSW 5.8 mph - N/A   Clear