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Weldon Spring Heights town, Missouri

Official LSAD Designation: Weldon Spring Heights town • Census GEOID: 2978334 • St. Charles County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Weldon Spring Heights town.

Reference Weather Station: WELDON SPRING NWS, MO US (ID: USC00238805) • Located 0.4 miles from community center • Elevation: 185.9 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 39.3° 21.2° 30.3° 2.61"
February 44.8° 24.4° 34.6° 2.43"
March 55.2° 33.3° 44.2° 3.74"
April 67.0° 43.8° 55.4° 4.70"
May 75.7° 54.2° 65.0° 5.09"
June 83.7° 63.3° 73.5° 4.72"
July 87.5° 67.3° 77.4° 3.92"
August 86.7° 65.4° 76.0° 3.58"
September 79.8° 57.0° 68.4° 3.50"
October 68.3° 45.6° 56.9° 3.37"
November 55.4° 34.9° 45.2° 3.69"
December 44.0° 25.9° 35.0° 3.07"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station WELDON SPRING NWS, MO US (ID: USC00238805) • 0.4 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at WELDON SPRING NWS, MO US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 38.0 46.8 55.5 64.3 73.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 55.2°F 2011: Annual mean 55.9°F 2012: Annual mean 58.2°F 2013: Annual mean 53.6°F 2014: Annual mean 52.6°F 2015: Annual mean 55.7°F 2016: Annual mean 57.2°F 2019: Annual mean 54.2°F 2020: Annual mean 55.3°F 2021: Annual mean 56.4°F 2022: Annual mean 55.2°F 2023: Annual mean 57.6°F 2024: Annual mean 57.8°F 2010: Annual mean of daily highs 65.8°F 2011: Annual mean of daily highs 66.4°F 2012: Annual mean of daily highs 70.1°F 2013: Annual mean of daily highs 64.4°F 2014: Annual mean of daily highs 63.4°F 2015: Annual mean of daily highs 66.2°F 2016: Annual mean of daily highs 67.5°F 2019: Annual mean of daily highs 64.5°F 2020: Annual mean of daily highs 65.7°F 2021: Annual mean of daily highs 66.8°F 2022: Annual mean of daily highs 66.5°F 2023: Annual mean of daily highs 68.9°F 2024: Annual mean of daily highs 68.7°F 2025: Annual mean of daily highs 67.4°F 2010: Annual mean of daily lows 44.7°F 2011: Annual mean of daily lows 45.5°F 2012: Annual mean of daily lows 46.3°F 2013: Annual mean of daily lows 42.8°F 2014: Annual mean of daily lows 41.7°F 2015: Annual mean of daily lows 45.2°F 2016: Annual mean of daily lows 46.8°F 2019: Annual mean of daily lows 44.0°F 2020: Annual mean of daily lows 44.9°F 2021: Annual mean of daily lows 46.1°F 2022: Annual mean of daily lows 43.9°F 2023: Annual mean of daily lows 46.2°F 2024: Annual mean of daily lows 46.8°F

Source: NOAA NCEI Global Summary of the Year.

Annual temperature data table (°F)
Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year Annual mean (°F) Annual mean of daily highs (°F) Annual mean of daily lows (°F)
2010 55.2 65.8 44.7
2011 55.9 66.4 45.5
2012 58.2 70.1 46.3
2013 53.6 64.4 42.8
2014 52.6 63.4 41.7
2015 55.7 66.2 45.2
2016 57.2 67.5 46.8
2017 Unavailable Unavailable Unavailable
2018 Unavailable Unavailable Unavailable
2019 54.2 64.5 44.0
2020 55.3 65.7 44.9
2021 56.4 66.8 46.1
2022 55.2 66.5 43.9
2023 57.6 68.9 46.2
2024 57.8 68.7 46.8
2025 Unavailable 67.4 Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.