Skip to content
VSWeather

Weldon Spring, MO weather and climate

St. Charles County, MO · population 5,291 · about 600 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Weldon Spring's own coordinates.

The year at a glance

Sunny days
203
clear or partly cloudy, per year
Precipitation
41 in
per year
Wet days
117
rain or snow per year
Snowfall
13 in
per year
Hot days
37
above 90 °F
Freezing nights
104
at or below 32 °F
Humidity
69%
average relative
Average temperature
55 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 40 °FDaily high, Feb: 45 °FDaily high, Mar: 56 °FDaily high, Apr: 67 °FDaily high, May: 76 °FDaily high, Jun: 84 °FDaily high, Jul: 88 °FDaily high, Aug: 87 °FDaily high, Sep: 80 °FDaily high, Oct: 69 °FDaily high, Nov: 56 °FDaily high, Dec: 44 °FDaily low, Jan: 21 °FDaily low, Feb: 25 °FDaily low, Mar: 33 °FDaily low, Apr: 44 °FDaily low, May: 54 °FDaily low, Jun: 63 °FDaily low, Jul: 67 °FDaily low, Aug: 65 °FDaily low, Sep: 57 °FDaily low, Oct: 46 °FDaily low, Nov: 35 °FDaily low, Dec: 26 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high404556677684888780695644
Daily low212533445463676557463526

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovWeldon Spring, Jan: 2.5 inWeldon Spring, Feb: 2.4 inWeldon Spring, Mar: 3.6 inWeldon Spring, Apr: 4.5 inWeldon Spring, May: 4.9 inWeldon Spring, Jun: 4.0 inWeldon Spring, Jul: 3.2 inWeldon Spring, Aug: 3.0 inWeldon Spring, Sep: 3.2 inWeldon Spring, Oct: 3.3 inWeldon Spring, Nov: 3.5 inWeldon Spring, Dec: 2.4 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Weldon Spring2.52.43.64.54.94.03.23.03.23.33.52.4

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovWeldon Spring, Jan: 15 daysWeldon Spring, Feb: 13 daysWeldon Spring, Mar: 15 daysWeldon Spring, Apr: 15 daysWeldon Spring, May: 16 daysWeldon Spring, Jun: 17 daysWeldon Spring, Jul: 21 daysWeldon Spring, Aug: 22 daysWeldon Spring, Sep: 21 daysWeldon Spring, Oct: 19 daysWeldon Spring, Nov: 17 daysWeldon Spring, Dec: 14 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Weldon Spring151315151617212221191714

Compare Weldon Spring with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Missouri city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).