Weather History for Key West, FL

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 81 °F 78 °F 69 °F
Mean Temperature 78 °F 74 °F 66 °F
Min Temperature 74 °F 70 °F 59 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 13 9 1 283
Growing Degree Days (base 50) 27 24 16 733
Dew Point  
Dew Point 73 °F 65 °F 52 °F
Precipitation  
Precipitation 0.13 in 0.02 in 0.00 in 0.40 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 23 mph 10 mph 0 mph
Gust Wind 32 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.26 in 30.12 in 30.00 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 11, 2011 Rise Set
Actual Time 7:00 AM EST 5:39 PM EST
Civil Twilight 6:35 AM EST 6:04 PM EST
Nautical Twilight 6:07 AM EST 6:32 PM EST
Astronomical Twilight 5:39 AM EST 7:00 PM EST
Moon 6:47 PM EST (12/11) 7:47 AM EST (12/11)
Length of Visible Light 11h 28m
Length of Day
10h 38m
Full, 99% of the Moon is Illuminated
Dec 11
Full
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full

Weather History Calendar

Precipitation Actual month total 0.40 Normal Month Total: 2.22
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
70 | 63 0.00
Average:
78 | 69 0.08
Scattered Clouds
Actual:
76 | 68 0.00
Average:
78 | 69 0.08
Partly Cloudy
Actual:
78 | 69 T
Average:
78 | 69 0.08
Rain
Actual:
80 | 69 T
Average:
78 | 69 0.09
Rain
Actual:
80 | 71 0.05
Average:
77 | 69 0.08
Clear
Actual:
80 | 71 0.00
Average:
77 | 69 0.08
Rain
Actual:
80 | 69 T
Average:
77 | 68 0.09
Rain
Actual:
69 | 65 T
Average:
77 | 68 0.08
Rain
Actual:
79 | 69 0.10
Average:
77 | 68 0.08
Rain
Actual:
81 | 71 0.01
Average:
77 | 68 0.08
Rain
Actual:
78 | 72 0.13
Average:
77 | 68 0.07
Partly Cloudy
Actual:
79 | 72 0.00
Average:
76 | 68 0.08
Scattered Clouds
Actual:
78 | 71 0.00
Average:
76 | 67 0.07
Scattered Clouds
Actual:
80 | 71 0.00
Average:
76 | 67 0.07
Partly Cloudy
Actual:
79 | 70 0.00
Average:
76 | 67 0.07
Rain
Actual:
80 | 72 T
Average:
76 | 67 0.07
Scattered Clouds
Actual:
77 | 71 0.00
Average:
76 | 67 0.08
Scattered Clouds
Actual:
75 | 70 0.00
Average:
76 | 67 0.07
Scattered Clouds
Actual:
78 | 70 0.00
Average:
76 | 66 0.07
Partly Cloudy
Actual:
79 | 74 0.00
Average:
76 | 66 0.08
Partly Cloudy
Actual:
79 | 74 0.00
Average:
75 | 66 0.07
Rain
Actual:
79 | 74 0.02
Average:
75 | 66 0.07
Scattered Clouds
Actual:
81 | 74 0.00
Average:
75 | 66 0.07
Partly Cloudy
Actual:
81 | 73 T
Average:
75 | 66 0.05
Rain
Actual:
80 | 74 0.09
Average:
75 | 65 0.06
Scattered Clouds
Actual:
80 | 74 0.00
Average:
75 | 65 0.05
Rain
Actual:
80 | 73 T
Average:
75 | 65 0.06
Partly Cloudy
Actual:
73 | 59 0.00
Average:
75 | 65 0.06
Partly Cloudy
Actual:
73 | 61 0.00
Average:
75 | 65 0.06
Clear
Actual:
75 | 63 0.00
Average:
75 | 65 0.06
Clear
Actual:
80 | 66 0.00
Average:
74 | 65 0.06
 

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 70 67 63 61 57 54 78 71 63 30.17 30.11 30.05 10 10 10 18 12 25 0.00  
2 76 72 68 63 59 55 78 64 50 30.25 30.20 30.14 10 10 10 18 11 28 0.00  
3 78 74 69 63 61 57 78 63 48 30.26 30.21 30.17 10 10 10 18 11 29 T  
4 80 75 69 69 66 63 90 74 58 30.17 30.11 30.06 10 10 10 23 11 32 T Rain
5 80 76 71 70 68 64 93 80 67 30.09 30.06 30.02 10 10 5 17 10 23 0.05 Rain
6 80 76 71 68 67 65 90 76 62 30.10 30.05 30.01 10 10 10 13 8 16 0.00  
7 80 75 69 69 67 64 93 78 62 30.10 30.04 30.00 10 10 10 22 5 31 T Rain
8 69 67 65 64 58 55 90 79 68 30.16 30.10 30.05 10 10 10 22 13 30 T Rain
9 79 74 69 72 69 62 93 84 74 30.10 30.06 30.03 10 10 10 12 7 15 0.10 Rain
10 81 76 71 72 71 68 100 84 67 30.10 30.05 30.02 10 10 9 16 9 22 0.01 Rain
11 78 75 72 72 70 68 93 85 76 30.12 30.07 30.03 10 10 2 16 9 21 0.13 Rain
12 79 76 72 71 70 68 93 84 74 30.15 30.11 30.06 10 10 10 14 8 18 0.00  
13 78 75 71 70 68 63 93 80 67 30.20 30.15 30.11 10 10 10 18 11 26 0.00  
14 80 76 71 67 63 61 84 71 58 30.19 30.17 30.12 10 10 10 18 11 26 0.00  
15 79 75 70 65 63 60 73 64 54 30.17 30.13 30.09 10 10 10 17 10 24 0.00  
16 80 76 72 68 65 63 79 67 54 30.17 30.13 30.10 10 10 10 13 7 28 T Rain
17 77 74 71 69 67 65 93 81 69 30.19 30.15 30.10 10 10 10 15 8 23 0.00  
18 75 73 70 67 65 63 90 79 68 30.21 30.16 30.12 10 10 10 17 11 23 0.00  
19 78 74 70 64 63 61 73 69 64 30.21 30.16 30.12 10 10 10 22 14 29 0.00  
20 79 77 74 67 65 64 74 71 67 30.17 30.12 30.07 10 10 10 22 17 30 0.00  
21 79 77 74 69 66 63 79 73 67 30.14 30.09 30.05 10 10 10 21 14 28 0.00  
22 79 77 74 73 70 68 93 85 76 30.14 30.09 30.05 10 9 4 22 13 29 0.02 Rain
23 81 78 74 73 72 70 93 84 74 30.16 30.11 30.08 10 10 10 12 8 15 0.00  
24 81 77 73 72 70 64 93 81 69 30.20 30.16 30.12 10 10 10 16 9 21 T  
25 80 77 74 72 71 67 87 78 69 30.22 30.17 30.14 10 10 8 23 9 29 0.09 Rain
26 80 77 74 72 70 67 87 81 74 30.17 30.13 30.10 10 10 10 16 11 20 0.00  
27 80 77 73 72 69 66 82 78 74 30.10 30.06 30.00 10 10 9 20 12 28 T Rain
28 73 66 59 67 58 52 84 73 61 30.17 30.11 30.07 10 10 10 21 9 28 0.00  
29 73 67 61 59 57 53 84 73 61 30.14 30.11 30.08 10 10 10 12 4 15 0.00  
30 75 69 63 63 59 55 87 71 54 30.16 30.12 30.08 10 10 10 12 6 17 0.00  
31 80 73 66 67 65 61 93 74 54 30.22 30.17 30.12 10 10 10 13 5 15 0.00