Weather History for Hilo, HI

Change the Weather History Date:

Tuesday, May 20, 2014

  Actual Average Record
Temperature  
Mean Temperature 75 °F 74 °F  
Max Temperature 84 °F 81 °F 94 °F (1966)
Min Temperature 66 °F 67 °F 64 °F (2001)
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 10 9  
Month to date cooling degree days 201 168  
Year to date cooling degree days 1150 965  
Growing Degree Days 25 (Base 50)    
Moisture  
Dew Point 62 °F    
Average Humidity 70    
Maximum Humidity 93    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in 0.24 in 2.66 in (1998)
Month to date precipitation 4.42 5.76  
Year to date precipitation 44.75 49.55  
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 30.01 in    
Wind  
Wind Speed 9 mph (South)    
Max Wind Speed 16 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

May. 20, 2014 Rise Set
Actual Time 5:42 AM HST 6:50 PM HST
Civil Twilight 5:19 AM HST 7:14 PM HST
Nautical Twilight 4:50 AM HST 7:42 PM HST
Astronomical Twilight 4:21 AM HST 8:11 PM HST
Moon No Moon Rise 11:40 AM HST (5/20)
Length of Visible Light 13h 55m
Length of Day
13h 07m
Waning Gibbous, 57% of the Moon is Illuminated
May 20
Waning Gibbous
May 21
Last Quarter
May 28
New
Jun 5
First Quarter
Jun 12
Full

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 66.9 °F - 64.9 °F 93% 30.01 in 10.0 mi SW 5.8 mph - N/A   Clear
1:53 AM 68.0 °F - 64.0 °F 87% 30.00 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
2:53 AM 66.9 °F - 62.1 °F 84% 29.98 in 10.0 mi WSW 8.1 mph - N/A   Scattered Clouds
3:53 AM 68.0 °F - 62.1 °F 81% 29.98 in 10.0 mi WSW 8.1 mph - N/A   Overcast
4:53 AM 66.9 °F - 60.1 °F 79% 29.99 in 10.0 mi WSW 9.2 mph - N/A   Clear
5:53 AM 66.9 °F - 55.9 °F 68% 30.00 in 10.0 mi SW 9.2 mph - N/A   Scattered Clouds
6:53 AM 69.1 °F - 55.9 °F 63% 30.02 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
7:53 AM 75.9 °F - 57.0 °F 52% 30.03 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
8:53 AM 78.1 °F - 61.0 °F 56% 30.03 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
9:53 AM 80.1 °F 81.2 °F 62.1 °F 54% 30.03 in 10.0 mi ESE 8.1 mph - N/A   Scattered Clouds
10:53 AM 82.0 °F 83.1 °F 63.0 °F 52% 30.02 in 10.0 mi SE 10.4 mph - N/A   Scattered Clouds
11:53 AM 82.9 °F 83.2 °F 60.1 °F 46% 30.01 in 10.0 mi SE 11.5 mph - N/A   Scattered Clouds
12:53 PM 82.0 °F 83.0 °F 62.1 °F 51% 30.00 in 10.0 mi East 13.8 mph - N/A   Partly Cloudy
1:53 PM 82.9 °F 83.3 °F 61.0 °F 47% 29.98 in 10.0 mi East 8.1 mph - N/A   Partly Cloudy
2:53 PM 82.0 °F 82.7 °F 61.0 °F 49% 29.97 in 10.0 mi East 12.7 mph - N/A   Mostly Cloudy
3:53 PM 80.1 °F 81.7 °F 64.0 °F 58% 29.96 in 10.0 mi ESE 10.4 mph - N/A   Scattered Clouds
4:53 PM 78.1 °F - 64.9 °F 64% 29.97 in 10.0 mi SE 8.1 mph - N/A   Overcast
5:53 PM 77.0 °F - 64.9 °F 66% 29.99 in 10.0 mi SE 8.1 mph - N/A   Partly Cloudy
6:53 PM 75.9 °F - 64.9 °F 69% 30.00 in 10.0 mi SSE 5.8 mph - N/A   Overcast
7:53 PM 73.9 °F - 64.9 °F 73% 30.03 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
8:53 PM 73.0 °F - 64.9 °F 76% 30.04 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
9:53 PM 70.0 °F - 64.9 °F 84% 30.06 in 10.0 mi SW 4.6 mph - N/A   Clear
10:53 PM 69.1 °F - 64.9 °F 87% 30.06 in 10.0 mi SSW 4.6 mph - N/A   Clear
11:53 PM 69.1 °F - 62.1 °F 78% 30.05 in 10.0 mi SW 6.9 mph - N/A   Clear