Weather History for St. Louis, MO

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Month of August, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 39 °C 31 °C 24 °C
Mean Temperature 33 °C 26 °C 19 °C
Min Temperature 26 °C 21 °C 14 °C
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 26 14 2 432
Growing Degree Days (base 50) 40 28 16 879
Dew Point  
Dew Point 23 °C 18 °C 8 °C
Precipitation  
Precipitation 10.7 mm 1.1 mm 0.0 mm 30.23 mm
Snowdepth 0 cm 0 cm 0 cm -
Wind  
Wind 74 km/h 9 km/h 0 km/h
Gust Wind 109 km/h 30 km/h 26 km/h
Sea Level Pressure  
Sea Level Pressure 1024 hPa 1017 hPa 1005 hPa

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 19, 2013 Rise Set
Actual Time 6:19 AM CDT 7:50 PM CDT
Civil Twilight 5:51 AM CDT 8:18 PM CDT
Nautical Twilight 5:17 AM CDT 8:51 PM CDT
Astronomical Twilight 4:41 AM CDT 9:27 PM CDT
Moon 6:41 PM CDT (8/19) 4:38 AM CDT (8/19)
Length of Visible Light 14h 27m
Length of Day
13h 31m
Waxing Gibbous, 97% of the Moon is Illuminated
Aug 19
Waxing Gibbous
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter

Weather History Calendar

Precipitation Actual month total 30.23 Normal Month Total: 7.6
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
31 | 19 0.00
Average:
32 | 22 3.05
Rain
Actual:
28 | 23 10.67
Average:
32 | 22 2.79
Fog
Actual:
29 | 21 0.00
Average:
32 | 22 2.79
Partly Cloudy
Actual:
27 | 18 0.00
Average:
32 | 22 2.54
Mostly Cloudy
Actual:
24 | 22 T
Average:
32 | 22 2.54
Rain
Actual:
32 | 22 T
Average:
32 | 22 2.54
Partly Cloudy
Actual:
33 | 24 0.00
Average:
32 | 22 2.54
Thunderstorm
Actual:
27 | 23 10.67
Average:
32 | 21 2.54
Rain
Actual:
27 | 21 T
Average:
32 | 21 2.54
Partly Cloudy
Actual:
29 | 21 0.00
Average:
32 | 21 2.54
Scattered Clouds
Actual:
30 | 17 0.00
Average:
32 | 21 2.54
Thunderstorm
Actual:
28 | 22 4.32
Average:
32 | 21 2.54
Partly Cloudy
Actual:
27 | 18 0.00
Average:
31 | 21 2.54
Partly Cloudy
Actual:
24 | 14 0.00
Average:
31 | 21 2.29
Partly Cloudy
Actual:
24 | 16 0.00
Average:
31 | 21 2.29
Partly Cloudy
Actual:
25 | 16 0.00
Average:
31 | 21 2.29
Partly Cloudy
Actual:
27 | 16 0.00
Average:
31 | 21 2.54
Partly Cloudy
Actual:
29 | 18 0.00
Average:
31 | 21 2.29
Scattered Clouds
Actual:
31 | 19 0.00
Average:
31 | 21 2.29
Scattered Clouds
Actual:
32 | 21 0.00
Average:
31 | 21 2.54
Scattered Clouds
Actual:
34 | 22 0.00
Average:
31 | 21 2.29
Partly Cloudy
Actual:
33 | 24 0.00
Average:
31 | 21 2.29
Partly Cloudy
Actual:
32 | 23 0.00
Average:
31 | 21 2.29
Scattered Clouds
Actual:
33 | 21 0.00
Average:
31 | 21 2.03
Partly Cloudy
Actual:
34 | 21 0.00
Average:
31 | 20 2.54
Partly Cloudy
Actual:
36 | 24 0.00
Average:
31 | 20 2.29
Partly Cloudy
Actual:
36 | 25 0.00
Average:
31 | 20 2.29
Scattered Clouds
Actual:
36 | 24 0.00
Average:
31 | 20 2.29
Partly Cloudy
Actual:
37 | 24 0.00
Average:
30 | 19 2.29
Partly Cloudy
Actual:
39 | 26 0.00
Average:
30 | 19 2.29
Thunderstorm
Actual:
39 | 26 4.57
Average:
30 | 19 2.54
 

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

2013 Temp. (°C) Dew Point (°C) Humidity (%) Sea Level Press. (hPa) Visibility (km) Wind (km/h) Precip. (mm) Events
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 31 26 19 19 16 12 93 63 32 1018 1016 1015 16 16 14 19 8 24 0.00  
2 28 26 23 22 19 15 93 76 58 1015 1014 1013 16 11 2 27 11 34 10.67 Rain
3 29 26 21 22 20 16 93 74 55 1019 1016 1013 16 10 1 24 9 29 0.00 Fog
4 27 23 18 16 14 12 81 60 39 1022 1020 1018 16 16 16 16 9 23 0.00  
5 24 23 22 20 17 14 90 75 60 1019 1015 1012 16 14 8 27 14 39 T  
6 32 27 22 22 21 19 93 70 47 1014 1012 1010 16 10 3 23 10 29 T Rain
7 33 28 24 23 21 18 87 66 44 1013 1011 1009 16 16 16 29 12 42 0.00  
8 27 25 23 23 22 20 94 84 74 1015 1013 1011 16 13 4 19 7 27 10.67 Rain , Thunderstorm
9 27 24 21 21 19 17 90 74 58 1018 1015 1014 16 14 10 16 6 21 T Rain
10 29 25 21 19 17 14 90 65 40 1020 1019 1017 16 16 16 24 9 27 0.00  
11 30 24 17 17 14 11 87 59 30 1021 1019 1017 16 16 16 16 6 34 0.00  
12 28 25 22 23 20 16 87 76 64 1017 1015 1013 16 14 5 24 7 27 4.32 Rain , Thunderstorm
13 27 23 18 20 17 9 90 71 52 1020 1016 1014 16 16 16 26 13 32 0.00  
14 24 19 14 12 10 8 80 61 41 1023 1021 1020 16 16 16 23 9 27 0.00  
15 24 20 16 12 11 9 78 58 38 1022 1020 1018 16 16 16 23 7 27 0.00  
16 25 21 16 14 12 11 84 64 43 1021 1020 1019 16 16 16 26 9 35 0.00  
17 27 22 16 16 14 13 90 68 45 1022 1021 1019 16 16 16 21 8 27 0.00  
18 29 24 18 17 16 15 81 63 44 1022 1020 1018 16 16 16 19 5 27 0.00  
19 31 26 19 19 17 15 87 65 43 1020 1018 1016 16 14 8 19 6 23 0.00  
20 32 27 21 19 18 16 84 61 38 1019 1018 1016 16 15 11 19 7 27 0.00  
21 34 28 22 19 18 17 79 59 38 1019 1017 1016 16 16 14 21 6 26 0.00  
22 33 29 24 22 20 18 74 61 47 1019 1017 1016 16 16 14 21 9 26 0.00  
23 32 28 23 22 20 18 84 64 44 1019 1017 1016 16 15 11 24 9 29 0.00  
24 33 27 21 20 18 17 90 64 38 1022 1021 1019 16 16 11 23 10 27 0.00  
25 34 28 21 22 17 14 73 53 32 1024 1022 1021 16 16 14 23 10 27 0.00  
26 36 31 24 22 21 17 82 58 33 1022 1020 1017 16 14 8 23 14 34 0.00  
27 36 31 25 22 19 17 76 55 33 1018 1016 1014 16 16 14 26 14 35 0.00  
28 36 30 24 19 18 17 74 54 33 1016 1015 1014 16 16 16 23 10 35 0.00  
29 37 31 24 22 20 19 79 59 38 1016 1015 1013 16 16 16 21 8 27 0.00  
30 39 33 26 23 21 19 74 55 35 1014 1012 1009 16 16 16 23 10 29 0.00  
31 39 33 26 22 21 17 74 51 27 1009 1008 1005 16 14 2 74 16 109 4.57 Rain , Thunderstorm