Platte County Climate

Platte County, Missouri

JanFebMarAprMayJunJulAugSepOctNovDec54.7°AVG °F

Avg Annual Temp

54.7°F

Annual Precip

39.3"

Annual Snowfall

18.2"

Extreme Heat Days

36.3

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.2"
1.5"
2.4"
4.0"
5.3"
5.3"
4.6"
4.2"
4.0"
3.3"
2.0"
1.6"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring45°65°11.7"Summer74°78°14.1"Fall44°68°9.3"Winter29°34°4.2"20°40°60°80°100°

National Comparison

Warmer than 49% of US counties
Wetter than 43% of US counties
More seasonal variation than 74% of US counties

Climate Profile

About Platte County Weather

Moderate Temperatures with Midwestern Extremes

Platte County averages 54.7°F annually, slightly outpacing the national median. It is characterized by its humid continental climate which brings a wide range of seasonal variability.

Typical of Missouri's Thermal Core

The county’s 54.7°F average is nearly identical to the Missouri state average of 54.9°F. While its precipitation is slightly lower than the state norm, its 18.2 inches of snowfall is relatively high for the region.

Snowy Influence on the Kansas Border

Platte experiences more snowfall than its eastern neighbor Clay, receiving 18.2 inches annually. It is also slightly warmer and wetter than the more northern Putnam County.

Hot July Peaks and Snowy Januaries

Summers are hot with 36 days of 90°F+ temperatures and a July average of 78.2°F. Winter is defined by 18.2 inches of snow and a Dec-Feb average that stays just below freezing at 31.9°F.

Prepare for Snow Removal and Cooling

Residents should keep snow blowers ready to manage nearly 20 inches of annual accumulation. Energy-efficient windows can help manage costs during the 36 annual days of extreme heat.

Frequently Asked Questions

What is the average temperature in Platte County?
The average annual temperature in Platte County, MO is 54.7°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Platte County get?
Platte County receives an average of 39.3 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Platte County?
Yes, Platte County receives an average of 18.2 inches of snowfall per year according to NOAA climate normals.
How hot does Platte County get in summer?
The average summer temperature (June-August) in Platte County is 76.3°F. The county experiences an average of 36.3 days per year above 90°F.
How cold are winters in Platte County?
The average winter temperature (December-February) in Platte County is 31.9°F. January, typically the coldest month, averages 29.0°F.

Track your own weather in Platte County

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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.

Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

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