Keahole Point, HI

10:51 PM HST on April 27, 2017 (GMT -1000)
Kona International At Keahole

Weather History for PHKO - September, 2015

Change the Weather History Date:

Month of September, 2015

  Max Avg Min Sum
Temperature  
Max Temperature 95 °F 89 °F 87 °F
Mean Temperature 86 °F 84 °F 81 °F
Min Temperature 82 °F 78 °F 75 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 21 19 16 564
Growing Degree Days (base 50) 36 34 31 1017
Dew Point  
Dew Point 79 °F 72 °F 63 °F
Precipitation  
Precipitation 0.65 in 0.05 in 0.00 in 1.47 in
Snowdepth - - - -
Wind  
Wind 22 mph 7 mph 0 mph
Gust Wind 26 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 29.99 in 29.86 in 29.77 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport or City:

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

Sep. 29, 2015 Rise Set
Actual Time 6:14 AM HST 6:14 PM HST
Civil Twilight 5:52 AM HST 6:36 PM HST
Nautical Twilight 5:27 AM HST 7:01 PM HST
Astronomical Twilight 5:01 AM HST 7:27 PM HST
Moon 7:55 PM HST (9/29) 7:55 AM HST (9/29)
Length of Visible Light 12h 43m
Length of Day
11h 59m
Waning Gibbous, 95% of the Moon is Illuminated
Sep 29
Waning Gibbous
Oct 4
Last Quarter
Oct 12
New
Oct 20
First Quarter
Oct 27
Full

Daily Weather History & Observations

2015 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 90 84 79 79 75 73 94 75 61 29.88 29.84 29.78 10 9 2 15 7 20 0.09 Rain
2 90 84 77 76 74 71 94 77 61 29.90 29.86 29.82 10 9 2 17 11 - 0.65 Rain
3 89 84 78 77 74 71 85 75 59 29.89 29.86 29.82 10 10 9 12 8 - 0.00  
4 89 84 80 76 75 73 87 74 63 29.86 29.83 29.78 10 10 9 15 7 - 0.01  
5 87 82 78 75 73 70 83 74 61 29.87 29.82 29.79 10 10 10 10 6 22 0.00 Thunderstorm
6 88 83 78 75 73 71 82 70 61 29.90 29.85 29.81 10 10 10 13 6 - 0.00  
7 89 84 79 76 74 72 81 72 61 29.94 29.90 29.84 10 10 10 12 6 - 0.00  
8 89 84 79 76 75 73 84 74 65 29.92 29.89 29.82 10 10 10 12 7 16 0.00  
9 90 84 78 76 74 71 81 72 61 29.88 29.84 29.78 10 10 10 13 7 16 0.00  
10 90 84 79 76 74 70 79 69 59 29.86 29.82 29.78 10 10 10 12 5 - 0.00  
11 90 86 82 76 74 71 79 72 59 29.86 29.81 29.77 10 10 10 14 7 - 0.00  
12 91 86 80 76 72 68 76 65 48 29.90 29.84 29.79 10 10 10 16 10 18 0.00  
13 91 86 80 78 73 67 84 68 53 29.93 29.88 29.85 10 10 10 17 11 26 0.00 Rain , Thunderstorm
14 89 84 79 75 73 70 79 70 59 29.91 29.88 29.82 10 10 10 14 8 - 0.00  
15 90 84 79 76 73 70 90 71 61 29.96 29.91 29.87 10 10 10 12 6 - 0.07  
16 90 84 78 77 73 69 82 70 57 29.99 29.94 29.91 10 10 10 13 7 - 0.00  
17 90 84 77 75 71 67 90 70 59 29.96 29.90 29.86 10 10 3 22 7 26 0.59 Rain
18 89 82 75 72 69 65 76 66 52 29.90 29.85 29.79 10 10 10 14 6 22 0.02  
19 88 82 75 74 71 68 82 69 59 29.88 29.84 29.78 10 10 10 10 6 - 0.00  
20 87 81 75 76 73 69 85 75 63 29.88 29.84 29.79 10 10 4 12 6 18 0.04 Rain
21 89 84 78 76 73 68 81 70 60 29.87 29.84 29.79 10 10 10 17 6 22 0.00 Rain
22 90 84 79 74 71 66 79 65 57 29.88 29.84 29.79 10 10 10 13 7 - 0.00  
23 90 84 78 75 73 71 89 71 55 29.88 29.82 29.78 10 10 10 10 5 - 0.00  
24 90 85 79 75 72 64 79 67 54 29.88 29.83 29.78 10 10 10 15 5 21 0.00  
25 95 85 75 73 69 65 76 59 39 29.92 29.85 29.79 10 10 10 18 6 26 0.00  
26 89 84 80 75 71 66 76 64 52 29.92 29.88 29.85 10 10 10 18 6 24 0.00  
27 89 84 78 74 71 67 77 65 48 29.93 29.90 29.86 10 10 10 13 7 18 0.00  
28 87 84 80 74 71 65 79 67 58 29.93 29.89 29.83 10 10 10 13 6 22 0.00  
29 89 84 78 73 70 63 78 67 56 29.92 29.88 29.83 10 10 10 17 7 20 0.00 Rain
30 88 83 78 72 68 64 71 62 53 29.91 29.87 29.82 10 10 10 13 6 - 0.00