Weather History for St. Petersburg, FL

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 88 °F 82 °F
Mean Temperature 86 °F 82 °F 76 °F
Min Temperature 82 °F 77 °F 66 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 20 17 12 514
Growing Degree Days (base 50) 36 32 26 965
Dew Point  
Dew Point 81 °F 74 °F 45 °F
Precipitation  
Precipitation 1.39 in 0.13 in 0.00 in 3.96 in
Snowdepth - - - -
Wind  
Wind 30 mph 9 mph 0 mph
Gust Wind 38 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.50 in 30.00 in 29.78 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 20, 2012 Rise Set
Actual Time 7:18 AM EDT 7:28 PM EDT
Civil Twilight 6:54 AM EDT 7:52 PM EDT
Nautical Twilight 6:27 AM EDT 8:19 PM EDT
Astronomical Twilight 6:00 AM EDT 8:46 PM EDT
Moon 12:05 PM EDT (9/20) 11:00 PM EDT (9/20)
Length of Visible Light 12h 57m
Length of Day
12h 10m
Waxing Crescent, 26% of the Moon is Illuminated
Sep 20
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Weather History Calendar

Precipitation Actual month total 3.96 Average Month Total: 7.10
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
93 | 80 0.00
Average:
89 | 75 0.46
Clear
Actual:
91 | 79 0.00
Average:
89 | 75 0.17
Clear
Actual:
91 | 79 0.00
Average:
89 | 76 0.29
Clear
Actual:
91 | 80 0.00
Average:
90 | 76 0.22
Scattered Clouds
Actual:
88 | 80 0.00
Average:
89 | 76 0.28
Thunderstorm
Actual:
88 | 75 0.52
Average:
89 | 75 0.59
Scattered Clouds
Actual:
88 | 78 0.00
Average:
89 | 75 0.38
Partly Cloudy
Actual:
89 | 82 0.00
Average:
89 | 75 0.43
Thunderstorm
Actual:
84 | 75 0.89
Average:
89 | 76 0.12
Thunderstorm
Actual:
87 | 77 0.36
Average:
89 | 76 0.23
Partly Cloudy
Actual:
88 | 78 0.00
Average:
88 | 76 0.11
Partly Cloudy
Actual:
89 | 78 0.00
Average:
88 | 75 0.22
Rain
Actual:
88 | 66 0.01
Average:
88 | 75 0.30
Scattered Clouds
Actual:
89 | 78 0.00
Average:
88 | 75 0.05
Rain
Actual:
88 | 79 0.00
Average:
88 | 75 0.17
Thunderstorm
Actual:
88 | 75 0.38
Average:
89 | 76 0.08
Rain
Actual:
89 | 77 0.04
Average:
89 | 76 0.15
Thunderstorm
Actual:
86 | 75 1.39
Average:
88 | 75 0.23
Rain
Actual:
84 | 79 0.01
Average:
89 | 75 0.20
Thunderstorm
Actual:
88 | 75 0.23
Average:
89 | 75 0.17
Thunderstorm
Actual:
87 | 75 0.13
Average:
89 | 75 0.34
Scattered Clouds
Actual:
88 | 75 0.00
Average:
88 | 75 0.19
Clear
Actual:
89 | 78 0.00
Average:
88 | 75 0.24
Clear
Actual:
82 | 78 0.00
Average:
87 | 74 0.11
Clear
Actual:
84 | 75 0.00
Average:
87 | 74 0.24
Scattered Clouds
Actual:
90 | 75 0.00
Average:
87 | 74 0.46
Scattered Clouds
Actual:
88 | 78 0.00
Average:
87 | 74 0.24
Thunderstorm
Actual:
89 | 77 0.00
Average:
87 | 74 0.14
Scattered Clouds
Actual:
90 | 78 0.00
Average:
87 | 74 0.12
Scattered Clouds
Actual:
87 | 79 0.00
Average:
86 | 73 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 86 80 81 78 74 100 81 55 30.16 30.10 30.03 10 10 10 14 9 - 0.00  
2 91 85 79 80 74 67 91 74 46 30.09 30.04 29.98 10 10 10 12 7 - 0.00  
3 91 85 79 80 74 69 91 73 48 30.06 30.01 29.97 10 10 10 13 7 - 0.00  
4 91 84 80 79 76 70 96 79 53 30.02 29.99 29.94 10 10 9 9 4 16 0.00  
5 88 84 80 79 77 73 94 81 61 29.99 29.95 29.92 10 10 10 17 6 16 0.00  
6 88 82 75 81 77 75 100 84 66 30.01 29.97 29.94 10 9 2 22 12 28 0.52 Rain , Thunderstorm
7 88 82 78 79 76 73 100 79 66 29.99 29.95 29.91 10 10 10 14 9 - 0.00  
8 89 85 82 78 76 75 85 74 66 29.96 29.90 29.87 10 10 10 16 9 25 0.00  
9 84 80 75 79 77 73 100 89 74 29.97 29.92 29.85 10 7 0 22 11 31 0.89 Fog , Rain , Thunderstorm
10 87 82 77 79 76 70 94 83 57 30.02 29.96 29.92 10 9 1 13 4 17 0.36 Rain , Thunderstorm
11 88 82 78 77 76 71 94 81 67 30.12 30.06 30.00 10 10 10 20 12 - 0.00  
12 89 83 78 75 73 69 84 75 61 30.12 30.08 30.05 10 10 10 21 16 - 0.00  
13 88 76 66 76 74 45 90 78 46 30.50 30.07 30.00 20 10 4 18 15 - 0.01 Rain
14 89 83 78 76 75 74 93 80 63 30.07 30.02 29.97 10 10 10 17 14 21 0.00  
15 88 84 79 76 75 71 90 80 61 30.07 30.03 29.99 10 10 10 18 13 - 0.00 Rain
16 88 81 75 77 74 72 100 83 65 30.05 30.00 29.96 10 8 2 23 12 31 0.38 Rain , Thunderstorm
17 89 82 77 79 76 74 96 84 65 30.01 29.95 29.89 10 10 10 15 10 - 0.04 Rain
18 86 80 75 81 77 73 100 93 83 29.94 29.91 29.87 10 7 0 25 12 38 1.39 Fog , Rain , Thunderstorm
19 84 82 79 77 75 73 90 80 67 30.04 29.97 29.91 10 10 9 12 6 - 0.01 Rain
20 88 81 75 79 75 71 100 85 63 30.03 29.99 29.94 10 9 1 20 4 29 0.23 Rain , Thunderstorm
21 87 80 75 77 74 72 100 83 69 30.01 29.98 29.91 10 8 2 30 7 37 0.13 Rain , Thunderstorm
22 88 81 75 75 73 71 94 82 61 30.04 29.99 29.94 10 10 10 15 7 - 0.00  
23 89 83 78 77 72 66 90 72 53 30.08 30.04 30.00 10 10 10 12 4 - 0.00  
24 82 80 78 68 62 58 71 54 42 30.12 30.06 30.01 10 10 10 14 11 - 0.00  
25 84 80 75 74 67 61 84 67 53 30.10 30.06 30.03 10 10 10 16 8 - 0.00  
26 90 82 75 75 73 68 94 79 53 30.11 30.07 30.03 10 9 3 13 8 - 0.00  
27 88 82 78 76 74 70 90 77 57 30.12 30.06 30.00 10 10 8 17 6 - 0.00  
28 89 82 77 76 75 71 96 82 57 30.06 30.01 29.93 10 10 7 18 7 25 0.00 Rain , Thunderstorm
29 90 84 78 77 75 73 90 81 59 29.99 29.93 29.85 10 10 10 12 6 - 0.00  
30 87 82 79 77 75 70 90 80 59 29.90 29.84 29.78 10 10 10 10 5 - 0.00