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Report for 2019
Annual Climatological Summary for 2019
Name: Riverweather.com City: St. Charles County State: MO
Elevation: 430 ft Lat: N 38° 55' 52" Lon: W 090° 28' 28"
Temperature (°F), Heat Base: 65.0 Cool Base: 65.0
Dep. Heat Cool Max Max Min Min
Mean Mean From Deg Deg >= <= <= <=
YR MO Max Min Mean Norm Days Days Hi Date Low Date 90.0 32.0 32.0 0.0
------------------------------------------------------------------------------------
19 1 38.1 24.3 30.8 -0.4 1059 0 67.3 7 -4.8 30 0 6 23 1
19 2 41.7 27.1 33.9 -0.9 869 0 64.3 3 13.0 8 0 5 21 0
19 3 50.6 34.7 42.1 -2.6 710 0 68.6 28 4.6 4 0 3 7 0
19 4 68.3 49.1 57.8 1.4 265 50 87.9 22 33.5 1 0 0 0 0
19 5 76.0 59.1 67.0 0.9 105 166 90.6 24 47.2 13 1 0 0 0
19 6 82.6 67.5 74.1 -1.2 3 277 93.2 30 59.7 13 5 0 0 0
19 7 88.4 72.5 79.8 0.2 0 458 95.2 19 65.8 22 12 0 0 0
19 8 84.6 69.0 76.3 -1.5 0 352 93.9 19 60.6 24 2 0 0 0
19 9 86.2 67.1 76.1 5.9 4 337 94.2 16 58.8 14 12 0 0 0
19 10 65.6 48.0 56.0 -2.7 330 51 92.9 1 31.8 31 2 0 1 0
19 11 50.6 32.9 40.9 -4.5 722 0 68.6 25 13.2 12 0 1 11 0
19 12 48.2 30.8 38.8 3.9 811 0 69.2 25 17.7 19 0 4 17 0
------------------------------------------------------------------------------------
65.1 48.5 56.1 -0.1 4883 1695 95.2 Jul -4.8 Jan 34 19 80 1
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.01 0.10 1.00
---------------------------------------------
19 1 2.68 0.32 0.75 22 13 7 0
19 2 2.70 0.49 0.84 6 13 5 0
19 3 5.38 3.10 1.60 9 10 5 2
19 4 5.35 1.99 2.19 30 15 7 2
19 5 6.64 2.80 2.39 21 16 9 2
19 6 4.04 -0.18 1.84 21 13 8 1
19 7 3.67 -0.50 0.80 22 11 8 0
19 8 6.26 2.79 2.17 12 13 7 1
19 9 0.63 -2.35 0.45 8 5 2 0
19 10 4.90 1.75 1.38 10 9 6 3
19 11 1.55 -1.25 0.62 29 11 3 0
19 12 1.30 -1.60 0.68 29 9 3 0
---------------------------------------------
45.10 7.36 2.39 May 138 70 11
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
------------------------------
19 1 4.2 44.0 9 NW
19 2 4.1 44.0 24 WNW
19 3 3.9 43.0 14 WNW
19 4 3.0 39.0 14 NW
19 5 1.9 35.0 1 WNW
19 6 1.8 44.0 1 WNW
19 7 1.4 49.0 17 WNW
19 8 1.4 33.0 20 NW
19 9 1.0 34.0 8 W
19 10 2.5 31.0 31 WNW
19 11 2.1 44.0 27 NW
19 12 2.6 38.0 1 WNW
------------------------------
2.5 49.0 Jul WNW