Climate & Temperature > Usa > Saint Louis, Missouri

Saint Louis, Missouri Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:

  • Saint Louis, Missouri, Usa latitude & longitude; 38°45'N 90°23'W.
  • Altitude; 101 m (331 ft).
  • The average temperature in Saint Louis, Missouri, Usa is 13.0 °C (55 °F).
  • The range of average monthly temperatures is 25.5 °C.
  • The warmest average max/ high temperature is 32 °C (90 °F) in July.
  • The coolest average min/ low temperature is -5 °C (23 °F) in January.
  • Saint Louis, Missouri receives on average 900 mm (35.4 in) of precipitation annually or 75 mm (3.0 in) each month.
  • On balance there are 106 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 8.8 days on an average month.
  • The month with the driest weather is January, February & December when on balance 51 mm (2.0 in) of rainfall (precipitation) occurrs.
  • The month with the wettest weather is June when on balance 109 mm (4.3 in) of rain, sleet, hail or snow falls across 10 days.
  • Mean relative humidity for an average year is recorded as 55.6% and on a monthly basis it ranges from 51% in July, September, October to 66% in January.
  • There is an average range of hours of sunshine in Saint Louis, Missouri of between 4.3 hours per day in January & December and 10.3 hours per day in June.
  • On balance there are 2737 sunshine hours annually and approximately 7.5 sunlight hours for each day.

Saint Louis, Missouri Climate Graph (Metric | Imperial units)

Saint Louis, Missouri Climate Graph

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Saint Louis, Missouri Weather Averages

  Average Minimum Temperatures in Saint Louis, Missouri, Usa (°C) Average Maximum Temperature in Saint Louis, Missouri, Usa (°C) Saint Louis, Missouri Average Temperature (°C) Average Sea Temp (°C) Average Precipitation/ Rainfall (mm) Wet Days (>0.1 mm) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed in Saint Louis, Missouri (Beaufort) Average Number of Days with Frost  
Weather in Saint Louis, Missouri in January -5 5 0 - 51 8 4.3 66 4 - Average Temperature in Saint Louis, Missouri in January
Weather in Saint Louis, Missouri in February -4 7 1.5 - 51 8 5.6 61 4 - Average Temperature in Saint Louis, Missouri in February
Weather in Saint Louis, Missouri in March 0 12 6 - 79 11 6.9 56.0 4 - Average Temperature in Saint Louis, Missouri in March
Weather in Saint Louis, Missouri in April 7 19 13 - 94 11 7.8 52 4 - Average Temperature in Saint Louis, Missouri in April
Weather in Saint Louis, Missouri in May 12 24 18 - 94 12 9.0 53 3 - Average Temperature in Saint Louis, Missouri in May
Weather in Saint Louis, Missouri in June 17 30 24 - 109 10 10.3 53 3 - Average Temperature in Saint Louis, Missouri in June
Weather in Saint Louis, Missouri in July 19 32 26 - 84 8 10.3 51 3 - Average Temperature in Saint Louis, Missouri in July
Weather in Saint Louis, Missouri in August 19 31 25 - 76 8 9.2 52 3 - Average Temperature in Saint Louis, Missouri in August
Weather in Saint Louis, Missouri in September 14 27 21 - 71 7 8.7 51 3 - Average Temperature in Saint Louis, Missouri in September
Weather in Saint Louis, Missouri in October 8 21 15 - 74 7 7.6 51 3 - Average Temperature in Saint Louis, Missouri in October
Weather in Saint Louis, Missouri in November 1 12 7 - 66 8 5.9 57 4 - Average Temperature in Saint Louis, Missouri in November
Weather in Saint Louis, Missouri in December -3 6 1.5 - 51 8 4.3 64 4 - Average Temperature in Saint Louis, Missouri in December

Saint Louis, Missouri Climograph/ Climate Chart (imperial)

Saint Louis, Missouri Temperature Chart

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Saint Louis, Missouri Temperatures in Farenheit

  Average Minimum Temperatures in Saint Louis, Missouri, Usa (°F) Average Maximum Temperature in Saint Louis, Missouri, Usa (°F) Average Temperature (°F) Average Sea Temp (°F) Average Precipitation/ Rainfall (in) Wet Days (>0.004 in) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed (Beaufort) Average Number of Days with Frost  
Temperatures in Saint Louis, Missouri in January 23 41 32 - 2.0 8 4.3 66 4 - Climate in Saint Louis, Missouri in January
Temperatures in Saint Louis, Missouri in February 25 45 35 - 2.0 8 5.6 61 4 - Climate in Saint Louis, Missouri in February
Temperatures in Saint Louis, Missouri in March 32 54 43 - 3.1 11 6.9 56 4 - Climate in Saint Louis, Missouri in March
Temperatures in Saint Louis, Missouri in April 45 66 55 - 3.7 11 7.8 52 4 - Climate in Saint Louis, Missouri in April
Temperatures in Saint Louis, Missouri in May 54 75 64 - 3.7 12 9.0 53 3 - Climate in Saint Louis, Missouri in May
Temperatures in Saint Louis, Missouri in June 63 86 74 - 4.3 10 10.3 53 3 - Climate in Saint Louis, Missouri in June
Temperatures in Saint Louis, Missouri in July 66 90 78 - 3.3 8 10.3 51 3 - Climate in Saint Louis, Missouri in July
Temperatures in Saint Louis, Missouri in August 66 88 77 - 3.0 8 9.2 52 3 - Climate in Saint Louis, Missouri in August
Temperatures in Saint Louis, Missouri in September 57 81 69 - 2.8 7 8.7 51 3 - Climate in Saint Louis, Missouri in September
Temperatures in Saint Louis, Missouri in October 46 70 58 - 2.9 7 7.6 51 3 - Climate in Saint Louis, Missouri in October
Temperatures in Saint Louis, Missouri in November 34 54 44 - 2.6 8 5.9 57 4 - Climate in Saint Louis, Missouri in November
Temperatures in Saint Louis, Missouri in December 27 43 35 - 2.0 8 4.3 64 4 - Climate in Saint Louis, Missouri in December

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Climate & Temperature > Usa > Saint Louis, Missouri

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