Wheaton, MO

Climate overview — based on NOAA 1991-2020 normals from MONETT 4SW, MO US.

Cfa Humid subtropical climate 7b USDA hardiness Zone 7b

Year-round temperatures (°F)

20° 40° 60° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Wheaton has an annual average temperature of 56.8°F with about 46.4 inches of precipitation per year and 6.7 inches of snow. The warmest month is August (average high 88.4°F), and the coldest is January (average low 23.9°F). May is typically the wettest month (6.04 in) and February the driest (2.21 in). Snow typically falls from November through March.

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
44°F
warmest to coldest month
Heating need
4,116
Cooling need
1,155

Best time to visit Wheaton

Full guide →

Climate change signal

All-time records →

99 of 366 (27%) of Wheaton's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1970s
42
1980s
87
1990s
47
2000s
58
2010s
64
2020s
68

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 44.1°F 23.9°F 34.0°F 2.47 in 2.4 in 7
February 48.7°F 27.5°F 38.1°F 2.21 in 1.1 in 7
March 57.6°F 35.9°F 46.8°F 3.78 in 1.9 in 10
April 67.4°F 45.3°F 56.4°F 4.65 in 10
May 75.2°F 54.8°F 65.0°F 6.04 in 12
June 83.3°F 63.7°F 73.5°F 4.93 in 10
July 88.3°F 67.7°F 78.0°F 4.01 in 9
August 88.4°F 66.2°F 77.3°F 3.14 in 8
September 81.0°F 58.4°F 69.7°F 4.91 in 7
October 69.8°F 47.1°F 58.4°F 3.67 in 9
November 57.1°F 36.2°F 46.6°F 3.77 in 0.2 in 8
December 47.2°F 27.8°F 37.5°F 2.85 in 1.1 in 7

Climate twins of Wheaton

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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