Weather History for Raleigh-Durham Airport, NC

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 92 °F 81 °F 65 °F
Mean Temperature 83 °F 71 °F 62 °F
Min Temperature 74 °F 61 °F 48 °F
Degree Days  
Heating Degree Days (base 65) 3 0 0 10
Cooling Degree Days (base 65) 18 7 0 201
Growing Degree Days (base 50) 32 21 11 631
Dew Point  
Dew Point 76 °F 61 °F 39 °F
Precipitation  
Precipitation 1.85 in 0.31 in 0.00 in 7.83 in
Snowdepth - - - -
Wind  
Wind 23 mph 4 mph 0 mph
Gust Wind 35 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.38 in 30.06 in 29.69 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 17, 2012 Rise Set
Actual Time 6:59 AM EDT 7:18 PM EDT
Civil Twilight 6:33 AM EDT 7:44 PM EDT
Nautical Twilight 6:03 AM EDT 8:14 PM EDT
Astronomical Twilight 5:33 AM EDT 8:44 PM EDT
Moon 8:41 AM EDT (9/17) 8:06 PM EDT (9/17)
Length of Visible Light 13h 10m
Length of Day
12h 19m
Waxing Crescent, 3% of the Moon is Illuminated
Sep 17
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Weather History Calendar

Precipitation Actual month total 7.83 Normal Month Total: 4.36
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
92 | 73 0.00
Average:
86 | 66 0.15
Thunderstorm
Actual:
88 | 72 1.85
Average:
86 | 66 0.17
Thunderstorm
Actual:
89 | 71 0.91
Average:
86 | 66 0.16
Rain
Actual:
89 | 73 0.03
Average:
86 | 66 0.15
Rain
Actual:
88 | 74 T
Average:
85 | 65 0.16
Thunderstorm
Actual:
90 | 72 0.55
Average:
85 | 65 0.16
Fog
Actual:
85 | 71 0.00
Average:
85 | 65 0.16
Thunderstorm
Actual:
90 | 69 0.31
Average:
85 | 65 0.15
Rain
Actual:
79 | 60 0.02
Average:
84 | 64 0.16
Scattered Clouds
Actual:
78 | 55 0.00
Average:
84 | 64 0.17
Scattered Clouds
Actual:
78 | 55 0.00
Average:
84 | 64 0.15
Scattered Clouds
Actual:
79 | 53 0.00
Average:
83 | 63 0.16
Partly Cloudy
Actual:
80 | 55 0.00
Average:
83 | 63 0.16
Partly Cloudy
Actual:
80 | 63 0.00
Average:
83 | 63 0.16
Fog
Actual:
80 | 61 0.00
Average:
82 | 62 0.15
Rain
Actual:
65 | 59 0.69
Average:
82 | 62 0.16
Rain
Actual:
82 | 62 0.72
Average:
82 | 61 0.15
Thunderstorm
Actual:
81 | 68 1.70
Average:
82 | 61 0.15
Rain
Actual:
72 | 57 T
Average:
81 | 61 0.14
Partly Cloudy
Actual:
76 | 53 0.00
Average:
81 | 60 0.14
Scattered Clouds
Actual:
82 | 55 0.00
Average:
81 | 60 0.12
Scattered Clouds
Actual:
85 | 63 T
Average:
80 | 59 0.12
Scattered Clouds
Actual:
75 | 53 T
Average:
80 | 59 0.12
Scattered Clouds
Actual:
72 | 51 0.00
Average:
79 | 59 0.13
Partly Cloudy
Actual:
77 | 48 0.00
Average:
79 | 58 0.12
Scattered Clouds
Actual:
83 | 54 0.00
Average:
79 | 58 0.12
Partly Cloudy
Actual:
85 | 59 0.00
Average:
78 | 57 0.13
Thunderstorm
Actual:
85 | 62 0.06
Average:
78 | 57 0.13
Thunderstorm
Actual:
68 | 60 0.99
Average:
78 | 56 0.13
Rain
Actual:
73 | 58 T
Average:
77 | 56 0.13
 

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 92 83 73 74 72 69 94 73 52 30.12 30.08 30.04 10 10 10 15 4 18 0.00  
2 88 80 72 76 73 70 94 80 65 30.06 30.02 29.94 10 10 4 17 4 23 1.85 Rain , Thunderstorm
3 89 80 71 75 72 70 94 79 63 30.07 30.02 29.96 10 7 0 20 4 26 0.91 Fog , Rain , Thunderstorm
4 89 81 73 73 71 68 93 73 52 30.04 29.99 29.92 10 8 3 14 7 22 0.03 Rain
5 88 81 74 73 71 68 93 75 57 29.96 29.91 29.85 10 9 5 21 10 29 T Rain
6 90 81 72 74 72 70 93 78 63 29.97 29.92 29.88 10 9 5 16 7 21 0.55 Rain , Thunderstorm
7 85 78 71 72 69 68 93 78 63 29.99 29.93 29.88 10 10 7 9 3 15 0.00 Fog
8 90 80 69 74 70 65 97 75 52 29.86 29.80 29.69 10 6 0 18 6 28 0.31 Fog , Rain , Thunderstorm
9 79 70 60 68 60 53 93 68 42 29.98 29.90 29.82 10 10 9 12 4 18 0.02 Rain
10 78 67 55 58 54 51 90 67 43 30.17 30.08 29.99 10 10 10 13 3 18 0.00  
11 78 67 55 56 53 48 93 66 39 30.32 30.26 30.18 10 10 10 12 3 15 0.00  
12 79 66 53 58 54 52 93 66 39 30.38 30.33 30.29 10 10 8 13 3 16 0.00  
13 80 68 55 63 57 52 93 67 40 30.37 30.31 30.25 10 10 10 12 4 15 0.00  
14 80 72 63 66 64 61 93 76 58 30.27 30.21 30.15 10 10 9 9 2 12 0.00  
15 80 71 61 64 62 57 93 74 54 30.19 30.15 30.12 10 10 10 14 5 18 0.00 Fog
16 65 62 59 60 57 55 97 85 73 30.20 30.15 30.11 10 8 2 9 3 13 0.69 Rain
17 82 72 62 70 65 60 93 80 67 30.13 30.05 29.97 10 9 0 10 3 15 0.72 Fog , Rain
18 81 75 68 73 69 66 97 86 74 29.93 29.79 29.73 10 7 0 23 9 35 1.70 Fog , Rain , Thunderstorm
19 72 65 57 67 57 50 93 73 53 30.15 30.03 29.85 10 9 4 17 6 22 T Rain
20 76 65 53 60 55 52 93 72 50 30.18 30.12 30.06 10 10 7 9 1 13 0.00  
21 82 69 55 61 59 54 93 71 49 30.10 30.05 30.00 10 10 7 10 3 15 0.00  
22 85 74 63 66 63 58 87 69 51 30.01 29.96 29.88 10 10 10 21 9 25 T  
23 75 64 53 62 48 39 78 55 31 30.13 30.08 29.98 10 10 10 14 3 20 T  
24 72 62 51 52 48 45 89 65 40 30.24 30.19 30.14 10 10 10 12 3 15 0.00  
25 77 63 48 58 51 46 89 66 43 30.26 30.21 30.16 10 10 9 12 3 15 0.00  
26 83 69 54 63 57 51 86 66 46 30.23 30.19 30.15 10 10 10 13 4 17 0.00  
27 85 72 59 62 59 57 93 67 40 30.20 30.15 30.09 10 10 9 10 2 15 0.00  
28 85 74 62 66 63 59 93 72 51 30.10 30.05 29.99 10 10 5 10 4 15 0.06 Rain , Thunderstorm
29 68 64 60 65 62 57 97 94 90 30.01 29.97 29.91 9 5 0 12 4 14 0.99 Fog , Rain , Thunderstorm
30 73 66 58 58 56 54 93 75 57 29.94 29.91 29.86 10 7 0 7 3 13 T Fog , Rain