Weather History for Hilo, HI

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Thursday, September 29, 2011

  Actual Average Record
Temperature  
Mean Temperature 78 °F 76 °F  
Max Temperature 85 °F 83 °F 89 °F (1974)
Min Temperature 71 °F 69 °F 64 °F (1955)
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 13 11  
Month to date cooling degree days 328 319  
Year to date cooling degree days 2485 2391  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 68 °F    
Average Humidity 76    
Maximum Humidity 93    
Minimum Humidity 58    
Precipitation  
Precipitation 0.09 in 0.34 in 3.09 in (1963)
Month to date precipitation 4.30 9.61  
Year to date precipitation 55.68 89.55  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Since 1 September snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 6 mph (NNW)    
Max Wind Speed 12 mph    
Max Gust Speed 16 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 29, 2011 Rise Set
Actual Time 6:10 AM HST 6:10 PM HST
Civil Twilight 5:48 AM HST 6:32 PM HST
Nautical Twilight 5:23 AM HST 6:57 PM HST
Astronomical Twilight 4:57 AM HST 7:23 PM HST
Moon 8:35 AM HST 8:07 PM HST
Length of Visible Light 12h 43m
Length of Day
11h 59m
Waxing Crescent, 9% of the Moon is Illuminated
Sep 29
Waxing Crescent
Oct 3
First Quarter
Oct 11
Full
Oct 19
Last Quarter
Oct 26
New

Hourly Weather History & Observations

Time (HST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:31 AM 73.4 °F - 69.8 °F 88% 30.05 in 3.0 mi NNE 5.8 mph - 0.01 in Rain Light Rain
12:41 AM 73.4 °F - 71.6 °F 94% 30.05 in 3.0 mi NW 5.8 mph - 0.02 in Rain Light Rain
12:53 AM 73.0 °F - 70.0 °F 90% 30.04 in 10.0 mi WNW 5.8 mph - 0.02 in Rain Light Rain
1:53 AM 73.0 °F - 69.1 °F 87% 30.02 in 10.0 mi West 4.6 mph - 0.00 in   Overcast
2:53 AM 71.1 °F - 68.0 °F 90% 30.00 in 10.0 mi WSW 4.6 mph - N/A   Overcast
3:53 AM 72.0 °F - 68.0 °F 87% 29.99 in 10.0 mi WSW 4.6 mph - N/A   Overcast
4:29 AM 71.6 °F - 66.2 °F 83% 30.00 in 10.0 mi Variable 4.6 mph - N/A   Overcast
4:53 AM 72.0 °F - 69.1 °F 91% 30.00 in 3.0 mi SW 4.6 mph - 0.04 in Rain Rain
5:06 AM 71.6 °F - 68.0 °F 88% 30.01 in 8.0 mi West 3.5 mph - 0.02 in Rain Light Rain
5:53 AM 71.1 °F - 69.1 °F 93% 30.01 in 9.0 mi West 3.5 mph - 0.03 in Rain Light Rain
6:53 AM 72.0 °F - 68.0 °F 87% 30.01 in 10.0 mi WSW 4.6 mph - 0.00 in   Overcast
7:53 AM 77.0 °F - 70.0 °F 79% 30.03 in 10.0 mi WNW 3.5 mph - N/A   Mostly Cloudy
8:53 AM 79.0 °F - 68.0 °F 69% 30.04 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
9:53 AM 81.0 °F 83.8 °F 68.0 °F 65% 30.04 in 10.0 mi North 8.1 mph - N/A   Partly Cloudy
10:53 AM 82.0 °F 85.5 °F 69.1 °F 65% 30.03 in 10.0 mi NE 9.2 mph - N/A   Scattered Clouds
11:53 AM 82.0 °F 84.9 °F 68.0 °F 62% 30.02 in 10.0 mi North 9.2 mph - N/A   Scattered Clouds
12:53 PM 82.9 °F 85.8 °F 68.0 °F 60% 30.00 in 10.0 mi NE 9.2 mph - N/A   Scattered Clouds
1:53 PM 81.0 °F 83.3 °F 66.9 °F 62% 29.99 in 10.0 mi NNE 8.1 mph - N/A   Mostly Cloudy
2:53 PM 82.0 °F 84.5 °F 66.9 °F 60% 29.98 in 10.0 mi NNE 9.2 mph - N/A   Clear
3:53 PM 82.0 °F 84.1 °F 66.0 °F 58% 29.97 in 10.0 mi North 5.8 mph - N/A   Scattered Clouds
4:53 PM 81.0 °F 83.3 °F 66.9 °F 62% 29.98 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
5:53 PM 79.0 °F - 68.0 °F 69% 29.99 in 10.0 mi NNE 6.9 mph - N/A   Mostly Cloudy
6:06 PM 78.8 °F - 68.0 °F 69% 29.99 in 10.0 mi NNE 4.6 mph - N/A   Scattered Clouds
6:53 PM 77.0 °F - 69.1 °F 76% 30.01 in 10.0 mi NNE 6.9 mph - N/A   Mostly Cloudy
7:53 PM 75.0 °F - 68.0 °F 79% 30.03 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
8:33 PM 73.4 °F - 69.8 °F 88% 30.05 in 7.0 mi NE 6.9 mph - 0.00 in Rain Light Rain
8:40 PM 73.4 °F - 69.8 °F 88% 30.05 in 4.0 mi ENE 5.8 mph - 0.00 in Rain Light Rain
8:53 PM 73.0 °F - 69.1 °F 87% 30.05 in 7.0 mi Calm Calm - 0.00 in Rain Light Rain
9:05 PM 73.4 °F - 69.8 °F 88% 30.05 in 6.0 mi Calm Calm - 0.00 in Rain Light Rain
9:53 PM 72.0 °F - 69.1 °F 91% 30.05 in 10.0 mi West 5.8 mph - 0.01 in   Overcast
10:10 PM 71.6 °F - 69.8 °F 94% 30.06 in 10.0 mi WSW 4.6 mph - N/A   Overcast
10:53 PM 72.0 °F - 68.0 °F 87% 30.05 in 10.0 mi WSW 4.6 mph - N/A   Overcast
11:53 PM 72.0 °F - 66.9 °F 84% 30.03 in 10.0 mi Calm Calm - N/A   Overcast