Weather History for Hilo, HI

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 81 °F 77 °F 72 °F
Mean Temperature 75 °F 72 °F 68 °F
Min Temperature 70 °F 66 °F 62 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 10 7 3 216
Growing Degree Days (base 50) 24 21 18 650
Dew Point  
Dew Point 72 °F 65 °F 53 °F
Precipitation  
Precipitation 2.89 in 0.62 in 0.00 in 18.49 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 25 mph 6 mph 0 mph
Gust Wind 36 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.23 in 30.06 in 29.92 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 03, 2011 Rise Set
Actual Time 6:39 AM HST 5:40 PM HST
Civil Twilight 6:15 AM HST 6:04 PM HST
Nautical Twilight 5:48 AM HST 6:31 PM HST
Astronomical Twilight 5:21 AM HST 6:58 PM HST
Moon 1:12 PM HST (12/3) 12:59 AM HST (12/3)
Length of Visible Light 11h 48m
Length of Day
11h 00m
Waxing Gibbous, 64% of the Moon is Illuminated
Dec 3
Waxing Gibbous
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter

Weather History Calendar

Precipitation Actual month total 18.49 Normal Month Total: 11.57
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
81 | 62 0.00
Average:
80 | 66 0.42
Rain
Actual:
81 | 68 0.25
Average:
80 | 66 0.42
Rain
Actual:
78 | 70 0.07
Average:
80 | 66 0.40
Rain
Actual:
78 | 67 0.12
Average:
80 | 66 0.40
Rain
Actual:
78 | 67 0.19
Average:
80 | 66 0.40
Rain
Actual:
78 | 65 0.04
Average:
80 | 66 0.40
Rain
Actual:
77 | 66 0.48
Average:
80 | 66 0.40
Rain
Actual:
72 | 64 0.24
Average:
80 | 66 0.40
Rain
Actual:
78 | 66 0.20
Average:
80 | 66 0.40
Rain
Actual:
76 | 65 0.50
Average:
80 | 65 0.39
Rain
Actual:
74 | 67 2.89
Average:
80 | 65 0.41
Rain
Actual:
76 | 68 0.15
Average:
79 | 65 0.41
Rain
Actual:
80 | 68 0.75
Average:
79 | 65 0.41
Rain
Actual:
76 | 68 1.34
Average:
79 | 65 0.40
Rain
Actual:
76 | 67 0.97
Average:
79 | 65 0.39
Rain
Actual:
77 | 66 0.15
Average:
79 | 65 0.37
Rain
Actual:
78 | 63 0.14
Average:
79 | 65 0.36
Rain
Actual:
79 | 64 1.11
Average:
79 | 65 0.37
Rain
Actual:
78 | 66 2.20
Average:
79 | 65 0.37
Rain
Actual:
76 | 67 1.45
Average:
79 | 65 0.37
Rain
Actual:
77 | 67 0.92
Average:
79 | 65 0.36
Rain
Actual:
79 | 66 0.70
Average:
79 | 65 0.36
Rain
Actual:
75 | 65 1.33
Average:
79 | 65 0.35
Rain
Actual:
75 | 62 0.69
Average:
79 | 65 0.35
Rain
Actual:
80 | 67 0.28
Average:
79 | 65 0.34
Rain
Actual:
79 | 65 0.30
Average:
79 | 65 0.33
Rain
Actual:
77 | 65 0.22
Average:
79 | 64 0.32
Rain
Actual:
78 | 65 0.76
Average:
79 | 64 0.32
Rain
Actual:
78 | 65 T
Average:
79 | 64 0.31
Partly Cloudy
Actual:
79 | 62 0.00
Average:
79 | 64 0.32
Rain
Actual:
78 | 67 0.05
Average:
79 | 64 0.32
 

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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 81 72 62 66 61 53 84 71 58 30.04 29.97 29.92 10 10 10 10 7 14 0.00  
2 81 75 68 72 67 58 82 74 66 30.09 30.03 29.98 10 8 1 14 6 20 0.25 Rain
3 78 74 70 70 67 66 97 84 71 30.11 30.06 30.02 10 10 4 14 3 15 0.07 Rain
4 78 73 67 70 65 61 90 77 64 30.11 30.08 30.02 10 10 7 9 4 13 0.12 Rain
5 78 73 67 66 64 63 93 79 64 30.10 30.05 29.97 10 9 2 12 4 15 0.19 Rain
6 78 72 65 67 64 60 93 79 64 30.04 30.00 29.95 10 9 2 15 5 17 0.04 Rain
7 77 72 66 67 64 62 93 81 68 30.07 30.01 29.97 10 8 2 17 5 18 0.48 Rain
8 72 68 64 67 64 61 90 85 79 30.10 30.06 30.00 10 7 2 10 6 12 0.24 Rain
9 78 72 66 64 63 59 87 73 58 30.09 30.04 29.98 10 9 2 18 6 26 0.20 Rain
10 76 71 65 70 64 59 90 80 69 30.06 30.02 29.98 10 6 1 25 8 36 0.50 Rain
11 74 71 67 72 67 64 97 91 84 30.04 30.00 29.95 10 5 1 22 8 31 2.89 Rain
12 76 72 68 72 68 65 93 86 79 30.04 30.00 29.94 10 9 4 7 3 7 0.15 Rain
13 80 74 68 68 66 64 93 78 62 30.08 30.02 29.98 10 7 2 15 5 18 0.75 Rain
14 76 72 68 69 67 65 93 86 79 30.11 30.07 30.03 10 6 1 14 4 20 1.34 Rain
15 76 72 67 70 67 64 93 88 82 30.13 30.08 30.02 10 7 1 9 3 14 0.97 Rain
16 77 72 66 68 65 60 93 84 74 30.14 30.09 30.03 10 9 2 13 5 15 0.15 Rain
17 78 71 63 66 62 55 87 77 67 30.12 30.06 30.01 10 10 5 15 6 18 0.14 Rain
18 79 72 64 66 63 60 93 79 64 30.09 30.05 29.99 10 8 2 14 5 17 1.11 Rain
19 78 72 66 72 67 63 100 87 73 30.09 30.03 29.98 10 6 1 17 8 23 2.20 Rain
20 76 72 67 70 67 64 100 90 79 30.06 30.01 29.95 10 8 2 16 5 23 1.45 Rain
21 77 72 67 70 68 64 100 90 79 30.03 30.00 29.94 10 7 1 18 5 23 0.92 Rain
22 79 73 66 68 66 63 97 80 62 30.08 30.02 29.98 10 8 2 17 7 24 0.70 Rain
23 75 70 65 68 65 59 100 82 64 30.18 30.09 30.05 10 6 1 16 7 22 1.33 Rain
24 75 69 62 68 64 58 93 79 64 30.19 30.14 30.10 10 8 2 18 7 23 0.69 Rain
25 80 74 67 66 65 64 90 76 62 30.23 30.18 30.11 10 10 2 14 5 20 0.28 Rain
26 79 72 65 65 64 62 93 77 60 30.21 30.17 30.10 10 9 1 16 6 24 0.30 Rain
27 77 71 65 70 65 62 93 81 69 30.19 30.15 30.09 10 9 2 12 4 14 0.22 Rain
28 78 72 65 67 65 61 93 77 60 30.21 30.17 30.11 10 9 2 16 5 18 0.76 Rain
29 78 72 65 65 62 58 93 74 54 30.20 30.13 30.07 10 10 9 14 5 17 T Rain
30 79 71 62 67 62 53 81 71 60 30.11 30.06 30.01 10 10 10 16 7 20 0.00  
31 78 73 67 68 65 58 90 76 62 30.09 30.04 29.99 10 9 2 16 7 20 0.05 Rain