Weather Averages Ballwin, MO

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Weather Averages for
Ballwin, MO


Latitude: 38°46'N, Longitude: 90°30'W, Elevation: 467.0 ft, Distance: 11.65 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years		 °F 53 27 31 43 55 64 73 77 75 67 55 44 32
Average high temperature
over 30 years		 °F 65 37 42 54 66 75 84 89 87 80 68 55 42
Average low temperature
over 30 years		 °F 42 17 21 32 43 52 61 66 62 55 43 33 22
Highest recorded temperature
over 100 years		 °F 114 77 82 93 93 100 105 114 111 105 96 87 77
Lowest recorded temperature
over 100 years		 °F -23 -22 -23 -7 - 30 41 46 43 31 19 -4 -18
Average number of days above 90°F
over 30 years		 days 48 - - - 0.3 2 8.9 16 14 6.5 0.6 - -
Average precipitation
over 30 years		 in 37.7 1.9 2.2 3.3 3.5 4.2 3.4 4.2 3.0 3.1 2.8 3.2 3.1
Average number of days below 32°F
over 30 years		 days 102 25 21 14 3.2 0.1 - - - - 2.7 13 23
Average number of days below 0°F
over 30 years		 days 4.2 2.1 1.1 0.1 - - - - - - - - 0.9
Average snowfall
over 30 years		 in 13.2 5.0 4.7 2.3 0.1 - - - - - - 1.0 3.5
Most rain reported in a day
over 100 years		 in 6.2 3.9 2.8 3.8 3.9 4.8 4.6 5.9 5.9 4.1 6.2 5.3 3.4
Most rain reported in a month
over 100 years		 in 58.7 8.3 6.3 10.7 11.0 13.3 12.3 10.6 13.6 10.2 9.7 11.3 8.2
Least rain reported in a month
over 100 years		 in 19.1 - 0.2 - 1.1 0.2 - - 0.1 0.1 0.3 0.1 0.1
Heating degree days
over 30 years		 days 5107 1142 916 638 298 115 10 1 3 65 296 614 1009
Cooling degree days
over 30 years		 days 1251 - - 4 26 90 260 390 306 146 27 2 -
Most snow reported in a month
over 100 years		 in 43.3 27.2 19.0 19.8 4.0 1.0 - - - - 0.2 10.7 26.5
Check weather averages for nearby locations (some locations might offer more data):
Latitude: 38°45'N, Longitude: 90°22'W, Elevation: 535.0 ft, Distance: 14.35 mi
Latitude: 38°37'N, Longitude: 90°12'W, Elevation: 466.0 ft, Distance: 19.22 mi
Latitude: 38°27'N, Longitude: 91°0'W, Elevation: 540.0 ft, Distance: 26.27 mi
Latitude: 38°52'N, Longitude: 90°10'W, Elevation: 430.0 ft, Distance: 27.74 mi
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