Lake St. Louis, Missouri, United States Climate

Weather: 15°C/59.0°F, Wind SW at 5.14 km/h, 33% Humidity, 0% Chance of rain

United States
(Photo by Derek Sutton on Unsplash)

Lake St. Louis Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Lake St. Louis has a Humid subtropical, no dry season climate (Classification: Cfa). The district’s yearly temperature is 14.09ºC (57.36ºF) and it is 1.45% higher than United States’s averages. Lake St. Louis typically receives about 45.19 millimeters (1.78 inches) of precipitation and has 44.45 rainy days (12.18% of the time) annually.

CountryUnited States
CityMissouri
Longitude-90.7883604
Latitude38.7809384
Attitude/ElevationNonem (0ft)
Local timeSaturday 22:47
Annual high temperature17.51ºC (63.52ºF)
Annual low temperature8.87ºC (47.97ºF)
Average annual precip.45.19mm (1.78in)
Warmest monthJuly (30.13ºC / 86.23ºF)
Coldest MonthJanuary (-3.69ºC / 25.36ºF)
Wettest MonthAugust (62.72mm / 2.47in)
Driest MonthDecember (28.93mm / 1.14in)
Number of days with rainfall (≥ 1.0 mm)44.45 days (12.18%)
Days with no rain320.55 days (87.82%)
Humidity74.44%

Climate Lake St. Louis: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)19.0(66.2)24.0(75.2)24.0(75.2)28.0(82.4)34.0(93.2)35.0(95.0)36.0(96.8)36.0(96.8)33.0(91.4)32.0(89.6)23.0(73.4)19.0(66.2)36.0(96.8)
Average high °C (°F)3.25(37.85)5.69(42.24)10.89(51.6)16.24(61.23)24.08(75.34)28.7(83.66)30.13(86.23)28.98(84.16)27.24(81.03)17.74(63.93)10.1(50.18)7.03(44.65)17.51(63.52)
Daily mean °C (°F)0.34(32.61)2.39(36.3)7.67(45.81)12.33(54.19)20.74(69.33)25.3(77.54)26.7(80.06)25.3(77.54)23.16(73.69)14.22(57.6)6.84(44.31)4.11(39.4)14.09(57.36)
Average low °C (°F)-3.69(25.36)-2.2(28.04)2.94(37.29)6.48(43.66)14.97(58.95)18.97(66.15)20.95(69.71)19.55(67.19)17.26(63.07)8.94(48.09)2.19(35.94)0.06(32.11)8.87(47.97)
Record low °C (°F)-21.0(-5.8)-15.0(5.0)-15.0(5.0)-6.0(21.2)2.0(35.6)11.0(51.8)16.0(60.8)13.0(55.4)6.0(42.8)-2.0(28.4)-13.0(8.6)-10.0(14.0)-21.0(-5.8)
Average precipitation mm (inches)45.99(1.81)39.93(1.57)51.9(2.04)42.0(1.65)53.84(2.12)58.36(2.3)54.21(2.13)62.72(2.47)36.83(1.45)38.52(1.52)29.07(1.14)28.93(1.14)45.19(1.78)
Average precipitation days (≥ 1.0 mm)2.453.273.734.185.184.914.554.274.183.092.731.913.7
Average relative humidity (%)74.7472.8672.1671.0677.7576.6278.6178.1475.1769.6972.773.7874.44
Mean monthly sunshine hours6.938.159.059.4912.413.6913.1510.7910.639.487.186.789.81

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Lake St. Louis in recent years.

Lake St. Louis

Lake St. Louis Temperature by Month

July
26.7°C | 80.06°F
June
25.3°C | 77.54°F
August
25.3°C | 77.54°F
September
23.16°C | 73.69°F
May
20.74°C | 69.33°F
October
14.22°C | 57.6°F
April
12.33°C | 54.19°F
March
7.67°C | 45.81°F
November
6.84°C | 44.31°F
December
4.11°C | 39.4°F
February
2.39°C | 36.3°F
January
0.34°C | 32.61°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature28.0°C (82.4°F)17.23°C (63.01°F)5.0°C (41.0°F)
Avg Temperature23.0°C (73.4°F)13.68°C (56.62°F)4.0°C (39.2°F)
Min Temperature17.0°C (62.6°F)8.1°C (46.58°F)-0.0°C (0°F)
Dew PointMaxAverageMin
Dew Point17.0°C (62.6°F)6.19°C (43.14°F)-6.0°C (21.2°F)
PrecipitationMaxAverageMinSum
Precipitation33.6mm | 1.32in3.75mm | 0.15in0.0mm | 0in116.4mm | 4.58in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind23.0kmh | 14.29mph13.77kmh | 8.56mph6.0kmh | 3.73mph
Gust Wind36.0kmh | 22.37mph21.42kmh | 13.31mph9.0kmh | 5.59mph
Sea Level PressureMaxAverageMin
Sea Level Pressure33.6mb3.75mb0.0mb
Lake St. Louis

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
October° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-10-0113 | 55.43 | 37.45617 | 10.5630.12 | 10200.0 | 0.0
2020-10-0211 | 51.82 | 35.6669 | 5.5930.21 | 10230.0 | 0.0
2020-10-0311 | 51.86 | 42.87711 | 6.8430.12 | 10204.8 | 0.19
2020-10-0413 | 55.48 | 46.48011 | 6.8430.15 | 10210.6 | 0.02
2020-10-0513 | 55.42 | 35.65810 | 6.2130.21 | 10230.0 | 0.0
2020-10-0618 | 64.48 | 46.46113 | 8.0829.97 | 10150.0 | 0.0
2020-10-0722 | 71.614 | 57.27211 | 6.8429.97 | 10150.0 | 0.0
2020-10-0822 | 71.612 | 53.66210 | 6.2130.06 | 10180.0 | 0.0
2020-10-0922 | 71.615 | 59.07516 | 9.9429.94 | 10140.6 | 0.02
2020-10-1023 | 73.416 | 60.87812 | 7.4629.88 | 10120.0 | 0.0
2020-10-1123 | 73.417 | 62.6799 | 5.5929.83 | 10100.0 | 0.0
2020-10-1219 | 66.210 | 50.06218 | 11.1829.83 | 10100.3 | 0.01
2020-10-1319 | 66.23 | 37.44213 | 8.0830.03 | 10170.0 | 0.0
2020-10-1421 | 69.86 | 42.84618 | 11.1829.85 | 10110.0 | 0.0
2020-10-1513 | 55.40 | 32.04315 | 9.3230.03 | 10170.1 | 0.0
2020-10-1611 | 51.8-6 | 21.23510 | 6.2130.27 | 10250.0 | 0.0
2020-10-1715 | 59.0-1 | 30.23823 | 14.2930.06 | 10180.0 | 0.0
2020-10-189 | 48.24 | 39.26917 | 10.5630.12 | 102033.6 | 1.32
2020-10-197 | 44.63 | 37.47814 | 8.730.15 | 10215.5 | 0.22
2020-10-2010 | 50.07 | 44.68512 | 7.4630.12 | 10200.4 | 0.02
2020-10-2115 | 59.014 | 57.28611 | 6.8430.09 | 101913.5 | 0.53
2020-10-2223 | 73.416 | 60.87818 | 11.1829.97 | 10150.0 | 0.0
2020-10-2313 | 55.410 | 50.08119 | 11.8130.06 | 10186.6 | 0.26
2020-10-248 | 46.44 | 39.27514 | 8.730.15 | 10210.6 | 0.02
2020-10-257 | 44.61 | 33.86714 | 8.730.12 | 10200.0 | 0.0
2020-10-264 | 39.22 | 35.68317 | 10.5630.24 | 102419.4 | 0.76
2020-10-274 | 39.23 | 37.49312 | 7.4630.3 | 102619.2 | 0.76
2020-10-2810 | 50.05 | 41.0796 | 3.7330.12 | 10200.0 | 0.0
2020-10-297 | 44.64 | 39.27922 | 13.6729.91 | 101311.2 | 0.44
2020-10-307 | 44.60 | 32.0697 | 4.3530.24 | 10240.0 | 0.0
2020-10-3111 | 51.84 | 39.27018 | 11.1830.15 | 10210.0 | 0.0

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