Weather History for Charleston, SC

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 86 °F 77 °F
Mean Temperature 85 °F 77 °F 68 °F
Min Temperature 76 °F 67 °F 54 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 20 12 3 349
Growing Degree Days (base 50) 34 26 18 787
Dew Point  
Dew Point 77 °F 67 °F 51 °F
Precipitation  
Precipitation 0.94 in 0.07 in 0.00 in 2.02 in
Snowdepth - - - -
Wind  
Wind 29 mph 6 mph 0 mph
Gust Wind 37 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.30 in 30.04 in 29.76 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 05, 2012 Rise Set
Actual Time 6:57 AM EDT 7:39 PM EDT
Civil Twilight 6:32 AM EDT 8:04 PM EDT
Nautical Twilight 6:03 AM EDT 8:33 PM EDT
Astronomical Twilight 5:33 AM EDT 9:03 PM EDT
Moon 10:28 PM EDT (9/5) 11:40 AM EDT (9/5)
Length of Visible Light 13h 31m
Length of Day
12h 41m
Waning Gibbous, 76% of the Moon is Illuminated
Sep 5
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full

Weather History Calendar

Precipitation Actual month total 2.02 Normal Month Total: 6.10
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
93 | 74 0.00
Average:
88 | 71 0.24
Scattered Clouds
Actual:
93 | 76 0.00
Average:
88 | 71 0.24
Scattered Clouds
Actual:
90 | 75 T
Average:
87 | 70 0.23
Scattered Clouds
Actual:
89 | 73 0.00
Average:
87 | 70 0.23
Scattered Clouds
Actual:
90 | 75 0.00
Average:
87 | 70 0.24
Scattered Clouds
Actual:
90 | 74 0.00
Average:
87 | 70 0.22
Thunderstorm
Actual:
91 | 73 0.94
Average:
87 | 70 0.24
Rain
Actual:
88 | 75 0.01
Average:
87 | 69 0.23
Partly Cloudy
Actual:
83 | 66 T
Average:
86 | 69 0.22
Scattered Clouds
Actual:
84 | 60 0.00
Average:
86 | 69 0.23
Scattered Clouds
Actual:
84 | 61 0.00
Average:
86 | 69 0.22
Scattered Clouds
Actual:
83 | 62 0.00
Average:
86 | 68 0.23
Partly Cloudy
Actual:
85 | 66 0.00
Average:
86 | 68 0.22
Partly Cloudy
Actual:
86 | 66 0.00
Average:
85 | 68 0.22
Scattered Clouds
Actual:
88 | 65 0.00
Average:
85 | 68 0.20
Scattered Clouds
Actual:
87 | 67 0.00
Average:
85 | 67 0.21
Fog
Actual:
87 | 67 T
Average:
85 | 67 0.20
Thunderstorm
Actual:
86 | 72 0.15
Average:
84 | 67 0.20
Partly Cloudy
Actual:
82 | 67 0.00
Average:
84 | 67 0.20
Partly Cloudy
Actual:
81 | 65 0.00
Average:
84 | 66 0.17
Partly Cloudy
Actual:
85 | 63 0.00
Average:
84 | 66 0.18
Partly Cloudy
Actual:
87 | 65 0.00
Average:
83 | 66 0.16
Scattered Clouds
Actual:
84 | 61 0.00
Average:
83 | 65 0.17
Scattered Clouds
Actual:
81 | 56 0.00
Average:
83 | 65 0.17
Scattered Clouds
Actual:
81 | 54 0.00
Average:
83 | 65 0.17
Scattered Clouds
Actual:
85 | 60 0.00
Average:
82 | 64 0.17
Fog
Actual:
87 | 64 0.00
Average:
82 | 64 0.17
Partly Cloudy
Actual:
87 | 64 0.00
Average:
82 | 63 0.18
Rain
Actual:
85 | 67 0.03
Average:
82 | 63 0.17
Thunderstorm
Actual:
77 | 69 0.89
Average:
81 | 63 0.17
 

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

2012 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 93 84 74 77 74 71 100 76 52 30.17 30.12 30.04 10 10 5 12 5 18 0.00 Fog
2 93 85 76 76 74 73 94 73 52 30.07 30.02 29.96 10 10 10 14 6 17 0.00  
3 90 83 75 76 73 71 94 77 59 30.05 30.01 29.99 10 10 10 17 8 21 T  
4 89 81 73 74 72 70 93 78 63 30.02 29.99 29.94 10 10 10 16 8 21 0.00  
5 90 83 75 75 73 71 94 75 56 29.99 29.95 29.91 10 10 10 16 7 20 0.00  
6 90 82 74 75 73 70 100 76 52 30.00 29.95 29.90 10 10 10 14 6 16 0.00  
7 91 82 73 75 73 70 94 79 63 29.97 29.91 29.87 10 9 1 29 5 37 0.94 Rain , Thunderstorm
8 88 82 75 76 74 73 100 84 68 29.87 29.84 29.77 10 10 7 21 9 24 0.01 Rain
9 83 75 66 73 70 64 94 80 65 29.98 29.85 29.78 10 10 10 14 8 21 T  
10 84 72 60 63 59 54 97 67 37 30.14 30.06 29.97 10 10 10 15 5 22 0.00  
11 84 73 61 63 57 52 93 64 34 30.26 30.21 30.13 10 10 10 18 7 23 0.00  
12 83 73 62 63 58 54 90 66 42 30.30 30.26 30.23 10 10 10 20 8 24 0.00  
13 85 76 66 66 64 60 93 69 44 30.27 30.22 30.18 10 10 10 16 9 21 0.00  
14 86 76 66 68 66 64 93 72 51 30.20 30.16 30.12 10 10 9 12 6 16 0.00  
15 88 77 65 69 66 63 100 73 46 30.16 30.12 30.08 10 10 10 12 5 14 0.00  
16 87 77 67 71 68 64 100 74 48 30.12 30.08 30.04 10 10 9 13 3 20 0.00  
17 87 77 67 73 70 66 100 78 55 30.08 30.02 29.95 10 10 9 21 7 25 T Fog
18 86 79 72 75 72 67 87 75 62 29.94 29.84 29.76 10 10 2 26 12 32 0.15 Rain , Thunderstorm
19 82 75 67 72 67 60 93 79 65 30.09 29.95 29.85 10 10 10 17 8 20 0.00  
20 81 73 65 66 63 60 93 78 62 30.13 30.08 30.03 10 10 10 10 6 14 0.00  
21 85 74 63 65 63 59 93 69 44 30.09 30.05 30.01 10 10 10 10 4 14 0.00  
22 87 76 65 68 65 63 93 71 48 30.06 30.02 29.97 10 10 7 15 5 17 0.00  
23 84 73 61 69 63 55 100 71 42 30.09 30.04 29.99 10 10 10 15 5 20 0.00  
24 81 69 56 62 55 51 93 66 39 30.18 30.13 30.07 10 10 10 18 7 23 0.00  
25 81 68 54 62 57 54 93 68 42 30.23 30.19 30.16 10 10 10 15 5 20 0.00  
26 85 73 60 68 64 59 100 78 55 30.22 30.18 30.15 10 10 9 13 5 20 0.00  
27 87 76 64 67 64 62 100 72 43 30.21 30.15 30.09 10 10 7 15 4 18 0.00 Fog
28 87 76 64 69 66 61 93 68 42 30.12 30.07 30.00 10 10 10 12 4 14 0.00  
29 85 76 67 70 67 65 100 78 55 30.02 29.95 29.86 10 9 5 14 5 18 0.03 Rain
30 77 73 69 72 69 66 93 86 79 29.90 29.87 29.84 10 8 4 10 4 13 0.89 Rain , Thunderstorm