Weather History for Dayton, OH

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 74 °F 62 °F
Mean Temperature 80 °F 64 °F 51 °F
Min Temperature 72 °F 54 °F 38 °F
Degree Days  
Heating Degree Days (base 65) 14 4 0 110
Cooling Degree Days (base 65) 15 3 0 94
Growing Degree Days (base 50) 30 14 0 427
Dew Point  
Dew Point 75 °F 55 °F 28 °F
Precipitation  
Precipitation 1.86 in 0.20 in 0.00 in 5.27 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 36 mph 7 mph 0 mph
Gust Wind 45 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.35 in 30.03 in 29.63 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 19, 2012 Rise Set
Actual Time 7:22 AM EDT 7:38 PM EDT
Civil Twilight 6:55 AM EDT 8:05 PM EDT
Nautical Twilight 6:23 AM EDT 8:36 PM EDT
Astronomical Twilight 5:50 AM EDT 9:09 PM EDT
Moon 11:30 AM EDT (9/19) 9:47 PM EDT (9/19)
Length of Visible Light 13h 10m
Length of Day
12h 16m
Waxing Crescent, 17% of the Moon is Illuminated
Sep 19
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Weather History Calendar

Precipitation Actual month total 5.27 Normal Month Total: 3.30
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
86 | 71 0.69
Average:
81 | 60 0.11
Rain
Actual:
81 | 71 0.03
Average:
81 | 60 0.12
Rain
Actual:
76 | 71 0.21
Average:
80 | 60 0.12
Rain
Actual:
87 | 72 0.04
Average:
80 | 59 0.11
Rain
Actual:
85 | 64 T
Average:
80 | 59 0.11
Scattered Clouds
Actual:
86 | 62 0.00
Average:
80 | 59 0.11
Thunderstorm
Actual:
84 | 66 1.24
Average:
79 | 58 0.12
Thunderstorm
Actual:
73 | 55 0.60
Average:
79 | 58 0.11
Partly Cloudy
Actual:
73 | 53 0.00
Average:
79 | 58 0.11
Scattered Clouds
Actual:
75 | 52 0.00
Average:
78 | 57 0.11
Scattered Clouds
Actual:
77 | 55 0.00
Average:
78 | 57 0.11
Scattered Clouds
Actual:
82 | 55 0.00
Average:
78 | 56 0.11
Partly Cloudy
Actual:
81 | 66 0.00
Average:
77 | 56 0.12
Rain
Actual:
69 | 52 T
Average:
77 | 56 0.11
Partly Cloudy
Actual:
74 | 46 0.00
Average:
76 | 55 0.11
Partly Cloudy
Actual:
76 | 50 0.00
Average:
76 | 55 0.10
Rain
Actual:
75 | 54 0.04
Average:
76 | 54 0.11
Rain
Actual:
68 | 45 0.32
Average:
75 | 54 0.10
Clear
Actual:
66 | 40 0.00
Average:
75 | 54 0.11
Partly Cloudy
Actual:
73 | 50 0.00
Average:
74 | 53 0.11
Thunderstorm
Actual:
66 | 50 1.86
Average:
74 | 53 0.11
Rain
Actual:
68 | 42 T
Average:
73 | 52 0.12
Scattered Clouds
Actual:
62 | 39 0.00
Average:
73 | 52 0.11
Clear
Actual:
65 | 38 0.00
Average:
73 | 52 0.11
Thunderstorm
Actual:
63 | 52 0.01
Average:
72 | 51 0.10
Rain
Actual:
72 | 61 0.05
Average:
72 | 51 0.11
Rain
Actual:
66 | 55 0.18
Average:
71 | 50 0.11
Fog
Actual:
68 | 54 0.00
Average:
71 | 50 0.11
Partly Cloudy
Actual:
71 | 48 0.00
Average:
70 | 50 0.10
Scattered Clouds
Actual:
68 | 46 0.00
Average:
70 | 49 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 86 79 71 75 71 69 100 79 57 30.13 30.06 30.00 10 9 1 16 6 20 0.69 Rain , Thunderstorm
2 81 76 71 74 72 71 100 87 74 30.00 29.94 29.86 10 7 1 16 9 21 0.03 Rain
3 76 74 71 73 71 66 100 90 79 29.94 29.90 29.86 10 6 1 17 8 22 0.21 Rain
4 87 80 72 74 72 68 100 78 55 29.93 29.89 29.83 10 6 0 13 4 16 0.04 Rain
5 85 75 64 70 67 63 100 81 61 29.93 29.89 29.82 10 6 0 15 3 18 T Fog , Rain
6 86 74 62 70 66 61 100 76 51 29.96 29.92 29.88 10 9 4 15 6 20 0.00  
7 84 75 66 72 67 55 100 79 58 29.96 29.84 29.65 10 7 2 30 8 37 1.24 Rain , Thunderstorm
8 73 64 55 66 58 49 97 71 44 29.93 29.77 29.65 10 8 0 22 9 37 0.60 Fog , Rain , Thunderstorm
9 73 63 53 54 52 50 93 71 49 30.10 29.98 29.90 10 10 10 14 4 20 0.00  
10 75 64 52 54 49 46 96 66 36 30.24 30.18 30.11 10 10 4 9 3 14 0.00  
11 77 66 55 51 49 48 77 58 38 30.29 30.23 30.19 10 10 10 13 7 16 0.00  
12 82 69 55 58 54 49 83 63 42 30.30 30.25 30.21 10 10 10 15 6 18 0.00  
13 81 74 66 62 59 56 81 62 42 30.31 30.25 30.21 10 10 9 9 4 12 0.00  
14 69 61 52 61 54 46 90 73 56 30.32 30.27 30.20 10 9 4 18 7 22 T Rain
15 74 60 46 51 46 43 100 68 35 30.35 30.28 30.19 10 9 4 10 2 14 0.00  
16 76 63 50 48 46 42 83 58 33 30.19 30.12 30.05 10 10 9 9 3 10 0.00  
17 75 65 54 65 58 47 93 77 60 30.05 29.91 29.81 10 9 3 13 7 17 0.04 Rain
18 68 57 45 65 56 38 100 76 51 30.04 29.75 29.63 10 8 1 24 10 30 0.32 Rain
19 66 53 40 41 38 35 86 60 34 30.19 30.12 30.06 10 10 10 15 6 20 0.00  
20 73 62 50 54 46 38 72 58 44 30.08 29.99 29.93 10 10 10 24 12 31 0.00  
21 66 58 50 54 50 42 100 71 42 30.01 29.89 29.70 10 7 1 33 7 43 1.86 Rain , Thunderstorm
22 68 55 42 54 46 28 100 67 33 30.16 29.92 29.74 10 8 0 36 12 45 T Rain
23 62 51 39 43 37 34 86 63 39 30.26 30.21 30.17 10 10 10 17 8 24 0.00  
24 65 52 38 39 37 35 85 61 37 30.30 30.19 30.07 10 10 10 21 7 26 0.00  
25 63 58 52 61 51 39 93 75 56 30.07 30.01 29.95 10 10 7 18 10 23 0.01 Rain , Thunderstorm
26 72 67 61 65 62 59 100 87 73 30.12 30.05 29.97 10 8 0 21 8 25 0.05 Fog , Rain
27 66 61 55 64 62 55 100 94 87 30.16 30.12 30.08 10 5 0 15 7 16 0.18 Fog , Rain
28 68 61 54 55 53 49 100 79 58 30.15 30.11 30.06 10 6 0 10 6 14 0.00 Fog
29 71 60 48 52 48 42 96 70 44 30.10 30.04 29.96 10 9 5 13 3 17 0.00  
30 68 57 46 51 44 41 86 63 39 29.95 29.91 29.88 10 10 8 17 8 22 0.00