Hilo, HI

1:03 PM HST on May 23, 2017 (GMT -1000)
Hilo International

Weather History for PHTO - September, 2015

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Month of September, 2015

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 87 °F 79 °F
Mean Temperature 84 °F 80 °F 76 °F
Min Temperature 75 °F 73 °F 69 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 19 15 11 457
Growing Degree Days (base 50) 33 29 26 878
Dew Point  
Dew Point 80 °F 72 °F 64 °F
Precipitation  
Precipitation 5.94 in 0.65 in 0.00 in 15.64 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 20 mph 6 mph 0 mph
Gust Wind 27 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.04 in 29.91 in 29.77 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 28, 2015 Rise Set
Actual Time 6:10 AM HST 6:11 PM HST
Civil Twilight 5:48 AM HST 6:32 PM HST
Nautical Twilight 5:22 AM HST 6:58 PM HST
Astronomical Twilight 4:57 AM HST 7:23 PM HST
Moon 7:01 PM HST (9/28) 6:47 AM HST (9/28)
Length of Visible Light 12h 44m
Length of Day
12h 00m
Full, 99% of the Moon is Illuminated
Sep 28
Full
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 92 83 73 80 75 71 94 82 70 29.87 29.82 29.77 10 9 7 15 6 18 0.00 Thunderstorm
2 93 84 74 77 74 69 87 76 64 29.93 29.86 29.82 10 10 8 20 7 26 T  
3 89 81 73 76 73 69 94 81 68 29.93 29.89 29.85 10 10 9 17 6 22 0.00  
4 89 80 71 74 71 64 94 77 59 29.90 29.86 29.81 10 10 8 13 6 18 T Rain
5 89 81 72 73 70 66 94 77 59 29.89 29.84 29.80 10 10 10 14 8 17 T  
6 91 82 72 77 72 64 84 73 62 29.91 29.85 29.82 10 9 2 14 7 20 0.04 Rain
7 90 81 72 76 74 69 93 76 59 29.96 29.91 29.86 10 10 9 12 6 14 0.00  
8 91 83 75 77 74 70 94 77 60 29.94 29.89 29.83 10 10 7 14 5 17 0.00 Rain
9 92 84 75 76 74 70 91 75 49 29.88 29.84 29.78 10 10 10 17 5 23 T  
10 90 83 75 76 74 72 96 85 60 29.91 29.86 29.81 10 9 2 18 7 22 0.06 Rain
11 88 81 74 75 73 69 96 81 60 29.92 29.86 29.81 10 9 2 20 7 24 0.06 Rain
12 86 80 73 77 75 71 97 91 71 29.94 29.89 29.84 10 7 1 15 6 21 0.16 Rain
13 85 79 73 77 74 71 100 92 65 29.99 29.94 29.89 10 5 0 15 6 19 1.89 Fog , Rain
14 88 81 73 76 73 70 96 85 58 29.98 29.94 29.87 10 8 2 14 5 16 0.12 Rain
15 82 78 73 78 74 68 97 89 77 30.03 29.97 29.92 10 8 1 14 6 23 0.28 Rain
16 88 81 73 76 74 72 100 92 58 30.04 30.00 29.95 10 6 0 16 5 19 0.21 Fog , Rain
17 87 80 73 74 72 70 97 84 57 30.02 29.96 29.90 10 9 2 16 6 17 0.25 Rain
18 83 77 70 74 72 67 97 91 69 29.96 29.91 29.86 10 6 0 16 6 20 2.26 Fog , Rain
19 88 80 71 76 73 67 100 86 60 29.93 29.89 29.84 10 8 1 12 6 16 0.04 Rain
20 79 76 73 78 75 71 100 97 91 29.94 29.89 29.85 10 4 0 18 6 27 5.94 Fog , Rain
21 88 82 75 76 74 69 100 86 57 29.95 29.90 29.87 10 9 1 17 7 23 0.65 Rain
22 86 79 72 73 71 68 97 84 62 29.94 29.90 29.86 10 9 2 15 6 18 0.07 Rain
23 86 80 73 73 71 69 97 84 60 29.94 29.88 29.82 10 8 2 15 6 18 0.15 Rain
24 88 81 73 72 71 69 93 80 50 29.96 29.90 29.85 10 9 2 13 6 16 0.02 Rain
25 86 79 72 75 72 68 97 89 65 29.98 29.93 29.87 10 6 0 17 6 22 1.19 Fog , Rain
26 86 80 74 73 72 66 94 80 59 30.01 29.96 29.91 10 8 2 17 9 23 0.34 Rain
27 80 77 73 75 72 69 94 89 80 30.02 29.98 29.92 10 6 1 15 7 21 1.54 Rain
28 84 78 71 72 69 66 93 80 57 30.02 29.98 29.92 10 9 2 15 7 19 0.37 Rain
29 86 79 71 71 69 65 91 77 52 30.01 29.96 29.90 10 9 2 13 6 16 T Rain
30 87 78 69 70 68 66 91 73 47 29.99 29.94 29.88 10 10 10 14 6 18 T