Weather History for Hilo, HI

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Sunday, July 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 75 °F 76 °F  
Max Temperature 82 °F 83 °F 88 °F (1974)
Min Temperature 68 °F 70 °F 63 °F (1955)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 0 0  
Since 1 July heating degree days 0 0  
Cooling Degree Days 10 11  
Month to date cooling degree days 250 231  
Year to date cooling degree days 1724 1605  
Since 1 June cooling degree days 571 537  
Growing Degree Days 24 (Base 50)    
Moisture  
Dew Point 67 °F    
Average Humidity 69    
Maximum Humidity 76    
Minimum Humidity 62    
Precipitation  
Precipitation T in 0.37 in 5.91 in (1987)
Month to date precipitation 2.76 7.09  
Year to date precipitation 54.31 66.37  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Since 1 June snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 6 mph (SW)    
Max Wind Speed 15 mph    
Max Gust Speed 23 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jul. 21, 2013 Rise Set
Actual Time 5:52 AM HST 7:00 PM HST
Civil Twilight 5:28 AM HST 7:24 PM HST
Nautical Twilight 5:00 AM HST 7:52 PM HST
Astronomical Twilight 4:31 AM HST 8:21 PM HST
Moon 6:14 PM HST (7/21) 4:47 AM HST (7/21)
Length of Visible Light 13h 56m
Length of Day
13h 08m
Waxing Gibbous, 99% of the Moon is Illuminated
Jul 21
Waxing Gibbous
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
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 71.1 °F - 63.0 °F 75% 30.04 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
1:53 AM 70.0 °F - 61.0 °F 73% 30.01 in 10.0 mi WSW 5.8 mph - N/A   Scattered Clouds
2:53 AM 70.0 °F - 59.0 °F 68% 29.99 in 10.0 mi SW 3.5 mph - N/A   Overcast
3:53 AM 69.1 °F - 60.1 °F 73% 29.99 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds
4:53 AM 68.0 °F - 61.0 °F 78% 29.98 in 10.0 mi WSW 5.8 mph - N/A   Clear
5:53 AM 68.0 °F - 59.0 °F 73% 29.99 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
6:53 AM 71.1 °F - 62.1 °F 73% 30.01 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
7:53 AM 73.9 °F - 64.0 °F 71% 30.01 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
8:53 AM 79.0 °F - 66.0 °F 64% 30.03 in 10.0 mi North 8.1 mph - N/A   Overcast
9:53 AM 79.0 °F - 66.0 °F 64% 30.03 in 10.0 mi North 5.8 mph - N/A   Overcast
10:53 AM 80.1 °F 82.3 °F 66.9 °F 64% 30.02 in 10.0 mi NNE 9.2 mph - N/A   Overcast
11:53 AM 82.0 °F 84.9 °F 68.0 °F 62% 30.01 in 10.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
12:33 PM 77.0 °F - 70.0 °F 79% 30.01 in 10.0 mi ENE 11.5 mph - 0.00 in Rain Light Rain
12:53 PM 79.0 °F - 70.0 °F 74% 30.01 in 10.0 mi East 9.2 mph - 0.00 in   Overcast
1:02 PM 79.0 °F - 69.1 °F 72% 30.00 in 10.0 mi East 10.4 mph - N/A   Overcast
1:53 PM 77.0 °F - 68.0 °F 74% 30.00 in 10.0 mi East 8.1 mph - 0.00 in Rain Light Rain
2:53 PM 80.1 °F 82.7 °F 68.0 °F 67% 29.98 in 10.0 mi ESE 5.8 mph - 0.00 in   Overcast
3:13 PM 79.0 °F - 68.0 °F 69% 29.98 in 10.0 mi Variable 6.9 mph - N/A   Overcast
3:24 PM 79.0 °F - 68.0 °F 69% 29.97 in 10.0 mi East 4.6 mph - 0.00 in Rain Light Rain
3:53 PM 79.0 °F - 68.0 °F 69% 29.97 in 10.0 mi ENE 5.8 mph - 0.00 in   Overcast
4:17 PM 77.0 °F - 69.1 °F 76% 29.97 in 10.0 mi East 5.8 mph - N/A   Overcast
4:53 PM 73.9 °F - 69.1 °F 85% 29.97 in 8.0 mi Calm Calm - 0.00 in Rain Light Rain
5:10 PM 75.0 °F - 70.0 °F 84% 29.97 in 7.0 mi Calm Calm - 0.00 in Rain Light Rain
5:28 PM 75.0 °F - 70.0 °F 84% 29.97 in 10.0 mi Calm Calm - 0.00 in   Overcast
5:42 PM 75.0 °F - 70.0 °F 84% 29.97 in 10.0 mi Calm Calm - 0.00 in Rain Rain
5:53 PM 75.0 °F - 70.0 °F 84% 29.97 in 10.0 mi Calm Calm - 0.00 in Rain Rain
6:00 PM 75.0 °F - 70.0 °F 84% 29.98 in 8.0 mi Calm Calm - 0.00 in   Overcast
6:30 PM 73.0 °F - 69.1 °F 87% 29.98 in 2.0 mi Calm Calm - 0.01 in   Overcast
6:42 PM 73.0 °F - 70.0 °F 90% 29.98 in 4.0 mi Calm Calm - 0.01 in   Overcast
6:53 PM 73.0 °F - 70.0 °F 90% 29.98 in 10.0 mi Calm Calm - 0.02 in   Overcast
7:53 PM 72.0 °F - 69.1 °F 91% 30.00 in 7.0 mi Calm Calm - 0.00 in   Overcast
8:53 PM 73.0 °F - 70.0 °F 90% 30.01 in 3.0 mi Calm Calm - 0.05 in Rain Light Rain
9:08 PM 73.0 °F - 70.0 °F 90% 30.01 in 4.0 mi WSW 3.5 mph - 0.02 in Rain Light Rain
9:53 PM 73.0 °F - 71.1 °F 93% 30.02 in 4.0 mi SSW 3.5 mph - 0.05 in Rain Light Rain
10:39 PM 73.0 °F - 71.1 °F 93% 30.03 in 4.0 mi SSE 3.5 mph - 0.07 in Rain Light Rain
10:53 PM 73.0 °F - 71.1 °F 93% 30.03 in 5.0 mi SSW 3.5 mph - 0.08 in Rain Light Rain
11:06 PM 73.0 °F - 70.0 °F 90% 30.03 in 9.0 mi WSW 4.6 mph - 0.00 in Rain Light Rain
11:48 PM 73.4 °F - 71.6 °F 94% 30.02 in 10.0 mi West 4.6 mph - 0.00 in   Overcast
11:53 PM 73.0 °F - 71.1 °F 93% 30.01 in 10.0 mi West 3.5 mph - 0.00 in   Overcast