Weather History for Hilo, HI

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Month of September, 2014

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 88 °F 85 °F
Mean Temperature 83 °F 80 °F 77 °F
Min Temperature 74 °F 71 °F 67 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 18 15 12 445
Growing Degree Days (base 50) 32 29 26 872
Dew Point  
Dew Point 77 °F 69 °F 56 °F
Precipitation  
Precipitation 1.26 in 0.17 in 0.00 in 3.74 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 21 mph 6 mph 0 mph
Gust Wind 26 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.11 in 29.97 in 29.87 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 19, 2014 Rise Set
Actual Time 6:08 AM HST 6:18 PM HST
Civil Twilight 5:46 AM HST 6:40 PM HST
Nautical Twilight 5:20 AM HST 7:06 PM HST
Astronomical Twilight 4:55 AM HST 7:32 PM HST
Moon 2:29 AM HST (9/19) 3:31 PM HST (9/19)
Length of Visible Light 12h 54m
Length of Day
12h 10m
Waning Crescent, 16% of the Moon is Illuminated
Sep 19
Waning Crescent
Sep 23
New
Oct 1
First Quarter
Oct 8
Full
Oct 15
Last Quarter

Weather History Calendar

Precipitation Actual month total 3.74 Normal Month Total: 9.94
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
88 | 73 0.00
Average:
83 | 69 0.30
Rain
Actual:
85 | 71 0.23
Average:
83 | 69 0.30
Rain
Actual:
86 | 72 0.36
Average:
83 | 69 0.31
Scattered Clouds
Actual:
86 | 67 0.00
Average:
83 | 69 0.31
Partly Cloudy
Actual:
87 | 68 0.00
Average:
83 | 69 0.32
Rain
Actual:
87 | 70 T
Average:
83 | 69 0.33
Rain
Actual:
88 | 71 0.00
Average:
83 | 69 0.31
Rain
Actual:
86 | 73 0.03
Average:
83 | 69 0.31
Mostly Cloudy
Actual:
87 | 70 0.00
Average:
83 | 69 0.32
Rain
Actual:
85 | 70 T
Average:
83 | 69 0.32
Partly Cloudy
Actual:
88 | 70 0.00
Average:
83 | 69 0.31
Scattered Clouds
Actual:
88 | 69 0.00
Average:
83 | 69 0.33
Rain
Actual:
87 | 70 0.33
Average:
83 | 69 0.34
Partly Cloudy
Actual:
87 | 70 T
Average:
83 | 69 0.33
Partly Cloudy
Actual:
88 | 71 0.00
Average:
83 | 69 0.34
Partly Cloudy
Actual:
88 | 72 0.00
Average:
83 | 69 0.33
Scattered Clouds
Actual:
89 | 70 0.00
Average:
83 | 69 0.34
Partly Cloudy
Actual:
89 | 70 0.04
Average:
83 | 69 0.34
Partly Cloudy
Actual:
90 | 71 T
Average:
83 | 69 0.34
Partly Cloudy
Actual:
90 | 73 T
Average:
83 | 69 0.35
Rain
Actual:
89 | 74 0.05
Average:
83 | 69 0.34
Rain
Actual:
88 | 72 T
Average:
83 | 69 0.35
Rain
Actual:
88 | 70 0.13
Average:
83 | 69 0.36
Scattered Clouds
Actual:
89 | 70 0.00
Average:
83 | 69 0.35
Rain
Actual:
90 | 73 T
Average:
83 | 69 0.35
Rain
Actual:
93 | 72 0.04
Average:
83 | 69 0.35
Rain
Actual:
87 | 73 1.26
Average:
83 | 69 0.35
Rain
Actual:
87 | 72 1.18
Average:
83 | 69 0.34
Partly Cloudy
Actual:
89 | 72 T
Average:
83 | 69 0.34
Rain
Actual:
88 | 72 0.09
Average:
83 | 69 0.33
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2014 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 88 81 73 73 71 70 87 73 59 30.05 30.02 29.97 10 10 10 15 7 20 0.00 Rain
2 85 78 71 75 72 69 93 84 74 30.05 30.01 29.96 10 9 4 21 7 25 0.23 Rain
3 86 79 72 73 70 63 94 78 61 30.05 30.00 29.94 10 9 2 13 7 17 0.36 Rain
4 86 77 67 70 65 59 81 70 59 29.99 29.95 29.91 10 10 10 13 8 17 0.00  
5 87 78 68 73 67 58 73 65 56 30.01 29.95 29.90 10 10 10 13 8 17 0.00  
6 87 79 70 72 68 63 93 71 48 30.00 29.97 29.93 10 10 10 15 7 20 T Rain
7 88 80 71 72 69 65 84 68 51 30.02 29.97 29.92 10 10 2 15 7 19 0.00 Rain
8 86 80 73 72 70 65 93 76 59 30.03 29.98 29.94 10 10 10 14 6 21 0.03 Rain
9 87 79 70 70 67 62 84 70 55 30.04 30.00 29.96 10 10 10 15 6 19 0.00  
10 85 78 70 70 67 62 84 71 58 30.04 30.00 29.95 10 10 10 13 5 16 T Rain
11 88 79 70 69 67 59 84 67 50 30.02 29.99 29.93 10 10 10 15 6 20 0.00  
12 88 79 69 71 65 57 79 67 54 30.11 29.96 29.89 10 10 10 13 7 18 0.00  
13 87 79 70 72 70 64 97 77 57 29.97 29.94 29.88 10 9 2 13 6 17 0.33 Rain
14 87 79 70 72 69 62 90 76 61 29.96 29.92 29.87 10 10 10 12 5 17 T  
15 88 80 71 73 68 61 82 68 54 29.96 29.92 29.87 10 10 10 16 7 20 0.00  
16 88 80 72 72 69 64 84 72 59 29.97 29.94 29.89 10 10 10 13 6 17 0.00  
17 89 80 70 71 67 61 82 69 55 29.98 29.94 29.90 10 10 10 13 6 18 0.00  
18 89 80 70 73 68 60 87 71 55 29.97 29.93 29.88 10 10 10 13 7 18 0.04  
19 90 81 71 73 70 65 87 73 59 29.96 29.93 29.87 10 10 10 17 7 23 T  
20 90 82 73 75 71 67 85 69 52 29.98 29.92 29.87 10 10 10 18 6 22 T  
21 89 82 74 75 73 67 88 76 63 30.04 29.98 29.92 10 10 2 16 6 20 0.05 Rain
22 88 80 72 74 70 66 88 70 51 30.08 30.03 29.99 10 10 10 15 7 22 T Rain
23 88 79 70 72 68 59 90 70 50 30.08 30.04 29.99 10 10 7 14 6 19 0.13 Rain
24 89 80 70 72 66 56 82 66 50 30.07 30.03 29.98 10 10 10 14 7 20 0.00  
25 90 82 73 72 69 64 84 67 50 30.05 30.01 29.96 10 10 10 14 6 19 T Rain
26 93 83 72 75 68 60 94 71 47 30.03 29.99 29.93 10 10 5 17 7 22 0.04 Rain
27 87 80 73 77 73 71 100 85 69 29.99 29.96 29.91 10 8 1 18 6 26 1.26 Rain
28 87 80 72 73 71 67 94 75 55 30.00 29.95 29.89 10 8 2 15 5 18 1.18 Rain
29 89 81 72 73 69 63 84 70 55 29.98 29.93 29.88 10 10 10 20 8 25 T  
30 88 80 72 73 70 65 94 76 57 29.99 29.94 29.88 10 10 4 13 6 17 0.09 Rain