Weather History for Hilo, HI

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Sunday, May 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 77 °F 74 °F  
Max Temperature 84 °F 80 °F 85 °F (1967)
Min Temperature 70 °F 67 °F 62 °F (1971)
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 12 8  
Month to date cooling degree days 127 96  
Year to date cooling degree days 960 893  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 67 °F    
Average Humidity 76    
Maximum Humidity 97    
Minimum Humidity 55    
Precipitation  
Precipitation 0.38 in 0.28 in 2.79 in (2004)
Month to date precipitation 1.92 3.68  
Year to date precipitation 40.53 47.47  
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 30.07 in    
Wind  
Wind Speed 6 mph (SW)    
Max Wind Speed 14 mph    
Max Gust Speed 16 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 12, 2013 Rise Set
Actual Time 5:45 AM HST 6:47 PM HST
Civil Twilight 5:22 AM HST 7:11 PM HST
Nautical Twilight 4:54 AM HST 7:39 PM HST
Astronomical Twilight 4:25 AM HST 8:07 PM HST
Moon 7:54 AM HST (5/12) 9:19 PM HST (5/12)
Length of Visible Light 13h 49m
Length of Day
13h 02m
Waxing Crescent, 8% of the Moon is Illuminated
May 12
Waxing Crescent
May 17
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New

Hourly Weather History & Observations

Time (HST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 71.1 °F - 68.0 °F 90% 30.08 in 6.0 mi WNW 4.6 mph - 0.09 in Rain Light Rain
1:53 AM 72.0 °F - 69.1 °F 91% 30.06 in 10.0 mi South 4.6 mph - 0.00 in   Overcast
2:53 AM 71.1 °F - 69.1 °F 93% 30.04 in 10.0 mi SW 4.6 mph - N/A   Overcast
3:03 AM 71.1 °F - 69.1 °F 93% 30.04 in 10.0 mi SW 4.6 mph - N/A   Overcast
3:48 AM 71.6 °F - 66.2 °F 83% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
3:53 AM 71.1 °F - 66.9 °F 87% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
4:42 AM 70.0 °F - 68.0 °F 93% 30.05 in 4.0 mi South 4.6 mph - 0.05 in Rain Light Rain
4:53 AM 70.0 °F - 68.0 °F 93% 30.05 in 4.0 mi South 4.6 mph - 0.06 in Rain Light Rain
5:04 AM 70.0 °F - 68.0 °F 93% 30.05 in 4.0 mi SSW 3.5 mph - 0.01 in Rain Light Rain
5:53 AM 70.0 °F - 68.0 °F 93% 30.07 in 2.0 mi SW 3.5 mph - 0.10 in Rain Rain
6:19 AM 70.0 °F - 68.0 °F 93% 30.07 in 3.0 mi West 4.6 mph - 0.07 in Rain Light Rain
6:28 AM 70.0 °F - 68.0 °F 93% 30.08 in 2.0 mi West 6.9 mph - 0.08 in Rain Light Rain
6:53 AM 71.1 °F - 69.1 °F 93% 30.08 in 3.0 mi WSW 6.9 mph - 0.12 in Rain Light Rain
7:00 AM 71.1 °F - 69.1 °F 93% 30.08 in 7.0 mi WSW 5.8 mph - 0.01 in Rain Light Rain
7:53 AM 72.0 °F - 68.0 °F 87% 30.09 in 10.0 mi WSW 8.1 mph - 0.01 in   Overcast
8:53 AM 73.9 °F - 68.0 °F 82% 30.10 in 10.0 mi WSW 9.2 mph - N/A   Overcast
9:53 AM 78.1 °F - 66.9 °F 68% 30.09 in 10.0 mi West 10.4 mph - N/A   Overcast
10:53 AM 80.1 °F 81.9 °F 64.9 °F 60% 30.09 in 10.0 mi WNW 5.8 mph - N/A   Overcast
11:53 AM 81.0 °F 83.0 °F 66.0 °F 60% 30.09 in 10.0 mi South 3.5 mph - N/A   Overcast
12:53 PM 82.9 °F 85.8 °F 68.0 °F 60% 30.06 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
1:53 PM 84.0 °F 86.3 °F 66.0 °F 55% 30.05 in 10.0 mi East 12.7 mph - N/A   Scattered Clouds
2:53 PM 81.0 °F 82.5 °F 64.0 °F 56% 30.04 in 10.0 mi East 8.1 mph - N/A   Mostly Cloudy
3:53 PM 80.1 °F 81.9 °F 64.9 °F 60% 30.03 in 10.0 mi ENE 8.1 mph - N/A   Scattered Clouds
4:53 PM 77.0 °F - 66.9 °F 71% 30.03 in 10.0 mi NE 8.1 mph - N/A   Overcast
5:53 PM 73.9 °F - 68.0 °F 82% 30.04 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
6:34 PM 73.0 °F - 66.9 °F 81% 30.05 in 10.0 mi NW 5.8 mph - 0.00 in   Overcast
6:45 PM 73.0 °F - 66.9 °F 81% 30.05 in 10.0 mi WNW 6.9 mph - 0.00 in   Mostly Cloudy
6:53 PM 73.0 °F - 66.0 °F 79% 30.05 in 10.0 mi WNW 8.1 mph - 0.00 in   Mostly Cloudy
7:53 PM 69.1 °F - 64.9 °F 87% 30.08 in 3.0 mi SSE 10.4 mph - 0.02 in Rain Rain
8:21 PM 69.1 °F - 66.0 °F 90% 30.08 in 6.0 mi WSW 8.1 mph - 0.08 in Rain Rain
8:53 PM 69.1 °F - 66.9 °F 93% 30.09 in 8.0 mi South 3.5 mph - 0.11 in Rain Light Rain
9:53 PM 69.1 °F - 66.0 °F 90% 30.10 in 10.0 mi West 9.2 mph - 0.03 in   Overcast
10:53 PM 69.1 °F - 64.9 °F 87% 30.10 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
11:53 PM 70.0 °F - 64.9 °F 84% 30.09 in 10.0 mi SW 6.9 mph - N/A   Overcast