Weather History for Sumter, SC

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 83 °F 66 °F
Mean Temperature 83 °F 72 °F 62 °F
Min Temperature 75 °F 62 °F 48 °F
Degree Days  
Heating Degree Days (base 65) 2 0 0 4
Cooling Degree Days (base 65) 18 7 0 222
Growing Degree Days (base 50) 33 22 12 668
Dew Point  
Dew Point 81 °F 65 °F 48 °F
Precipitation  
Precipitation 1.48 in 0.09 in 0.00 in 2.56 in
Snowdepth - - - -
Wind  
Wind 20 mph 2 mph 0 mph
Gust Wind 32 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.36 in 30.06 in 29.74 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 30, 2012 Rise Set
Actual Time 7:15 AM EDT 7:06 PM EDT
Civil Twilight 6:50 AM EDT 7:31 PM EDT
Nautical Twilight 6:21 AM EDT 8:00 PM EDT
Astronomical Twilight 5:52 AM EDT 8:29 PM EDT
Moon 7:14 PM EDT (9/30) 7:40 AM EDT (9/30)
Length of Visible Light 12h 40m
Length of Day
11h 50m
Full, 100% of the Moon is Illuminated
Sep 30
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter
Oct 29
Full

Weather History Calendar

Precipitation Actual month total 2.56 Average Month Total: 3.76
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
93 | 73 0.00
Average:
87 | 66 0.15
Clear
Actual:
93 | 73 0.00
Average:
88 | 65 0.04
Thunderstorm
Actual:
91 | 73 0.35
Average:
88 | 66 0.08
Thunderstorm
Actual:
87 | 73 0.63
Average:
88 | 66 0.27
Scattered Clouds
Actual:
89 | 71 0.00
Average:
86 | 65 0.34
Thunderstorm
Actual:
86 | 75 0.00
Average:
85 | 64 0.20
Thunderstorm
Actual:
86 | 71 0.08
Average:
86 | 64 0.09
Thunderstorm
Actual:
89 | 71 1.48
Average:
87 | 64 0.06
Rain
Actual:
78 | 60 0.00
Average:
87 | 64 0.04
Clear
Actual:
80 | 57 0.00
Average:
86 | 64 0.14
Clear
Actual:
80 | 57 0.00
Average:
86 | 63 0.06
Clear
Actual:
78 | 55 0.00
Average:
86 | 63 0.16
Scattered Clouds
Actual:
80 | 57 0.00
Average:
87 | 62 0.10
Rain
Actual:
82 | 57 0.00
Average:
86 | 62 0.14
Partly Cloudy
Actual:
84 | 59 0.00
Average:
87 | 63 0.19
Fog
Actual:
84 | 62 0.00
Average:
86 | 63 0.01
Partly Cloudy
Actual:
86 | 66 0.00
Average:
85 | 63 0.02
Rain
Actual:
84 | 71 0.00
Average:
85 | 62 0.20
Partly Cloudy
Actual:
73 | 59 0.00
Average:
85 | 62 0.08
Scattered Clouds
Actual:
77 | 57 0.00
Average:
84 | 62 0.22
Fog
Actual:
82 | 53 0.00
Average:
85 | 63 0.11
Clear
Actual:
86 | 60 0.00
Average:
85 | 62 0.25
Clear
Actual:
80 | 55 0.00
Average:
84 | 59 0.19
Clear
Actual:
75 | 50 0.00
Average:
83 | 57 0.03
Clear
Actual:
78 | 48 0.00
Average:
81 | 58 0.11
Clear
Actual:
84 | 50 0.00
Average:
82 | 58 0.13
Fog
Actual:
84 | 55 0.00
Average:
82 | 59 0.01
Rain
Actual:
84 | 59 0.00
Average:
81 | 58 0.07
Rain
Actual:
78 | 66 0.00
Average:
80 | 58 0.17
Rain
Actual:
66 | 64 0.02
Average:
79 | 57 0.10
 

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 83 73 81 76 73 100 84 52 30.17 30.12 30.05 10 9 4 9 3 - 0.00 Rain
2 93 83 73 79 75 72 100 79 49 30.07 30.02 29.95 10 9 4 12 2 - 0.00  
3 91 82 73 77 75 72 100 91 55 30.05 30.01 29.97 10 8 2 13 3 18 0.35 Rain , Thunderstorm
4 87 80 73 77 74 73 100 93 66 30.03 29.99 29.94 10 8 1 13 2 18 0.63 Rain , Thunderstorm
5 89 80 71 77 74 72 100 86 55 30.01 29.95 29.91 10 8 3 12 4 16 0.00  
6 86 80 75 77 75 73 100 87 66 30.01 29.95 29.91 10 10 9 12 6 16 0.00 Rain , Thunderstorm
7 86 78 71 77 74 72 100 89 66 29.99 29.93 29.88 10 9 2 8 2 - 0.08 Rain , Thunderstorm
8 89 80 71 77 73 72 100 90 59 29.89 29.82 29.74 10 7 0 16 3 32 1.48 Rain , Thunderstorm
9 78 70 60 73 65 61 100 85 54 30.01 29.90 29.81 10 9 2 13 5 - 0.00 Rain
10 80 68 57 66 59 54 100 78 39 30.16 30.09 30.00 10 10 6 9 2 - 0.00  
11 80 68 57 64 58 52 100 77 41 30.31 30.24 30.16 10 9 3 9 1 - 0.00  
12 78 66 55 63 58 55 100 79 44 30.36 30.30 30.27 10 9 2 12 2 16 0.00  
13 80 68 57 66 60 57 100 81 47 30.34 30.28 30.23 10 10 10 12 3 17 0.00  
14 82 70 57 68 63 57 100 85 51 30.26 30.20 30.15 10 10 9 7 1 - 0.00 Rain
15 84 72 59 70 64 59 100 82 45 30.19 30.14 30.10 10 10 3 8 1 - 0.00  
16 84 73 62 73 67 63 100 85 55 30.15 30.11 30.05 10 9 0 8 1 - 0.00 Fog
17 86 76 66 73 69 66 100 83 51 30.10 30.03 29.94 10 9 4 10 2 18 0.00  
18 84 78 71 75 72 68 100 89 69 29.94 29.82 29.75 10 10 9 20 8 26 0.00 Rain
19 73 66 59 72 63 57 100 82 57 30.13 30.00 29.86 10 10 2 15 5 21 0.00  
20 77 67 57 66 60 57 100 84 54 30.17 30.12 30.06 10 10 8 8 1 - 0.00  
21 82 68 53 66 61 54 100 82 48 30.12 30.07 30.01 10 9 0 6 0 - 0.00 Fog
22 86 73 60 68 65 61 100 78 48 30.06 30.01 29.94 10 10 7 13 4 18 0.00  
23 80 68 55 72 58 48 100 72 32 30.12 30.07 29.99 10 10 5 13 3 16 0.00  
24 75 62 50 57 52 48 100 75 41 30.22 30.17 30.11 10 10 9 12 2 - 0.00  
25 78 63 48 59 53 48 100 77 42 30.26 30.22 30.19 10 10 8 8 1 - 0.00  
26 84 67 50 64 56 50 100 77 30 30.26 30.20 30.16 10 9 1 5 0 - 0.00  
27 84 70 55 72 63 55 100 84 48 30.23 30.17 30.10 10 8 0 8 1 - 0.00 Fog
28 84 72 59 70 65 59 100 83 48 30.14 30.08 30.01 10 9 0 6 1 - 0.00 Fog , Rain
29 78 72 66 70 68 64 100 88 61 30.03 29.95 29.88 10 9 5 6 0 - 0.00 Rain
30 66 65 64 66 65 64 100 98 94 29.94 29.90 29.87 10 6 0 9 2 - 0.02 Fog , Rain