Montgomery County Climate

Name: Montgomery County Climate Normals
Creator: NOAA National Centers for Environmental Information
License: https://www.usa.gov/government-works

Montgomery County, Missouri

NOAA NCEI 1991-2020 Climate Normals

Avg Annual Temp

54.5°F

Annual Precip

41.5"

Annual Snowfall

—

Extreme Heat Days

days >= 90°F/yr

Monthly Temperature

Precipitation Calendar

Dry

Wet

2.4"

2.2"

2.6"

4.6"

5.1"

4.5"

3.9"

3.5"

3.2"

3.5"

2.4"

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Growing Season & Gardening

USDA Hardiness Zone

Minimum winter temperature range for plant survival

Seasonal Overview

National Comparison

Warmer than 49% of US counties

Wetter than 49% of US counties

More seasonal variation than 73% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Montgomery County

Climate Verdict

Montgomery County has a mild, with an average annual temperature of 54.5°F, moderately wet with 41.5 inches of annual precipitation, occasional hot days — 30.6 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 29.3°F. summers are warm — July averages 77.1°F. The 48°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

Growing season and gardening data is currently limited for Montgomery County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.

Regional Context

Montgomery County closely matches the Missouri statewide average temperature of 54.9°F, it is somewhat drier than average for Missouri.

Frequently Asked Questions

What is the average temperature in Montgomery County?

The average annual temperature in Montgomery County, MO is 54.5°F, based on NOAA 30-year climate normals (1991-2020).

How much rain does Montgomery County get?

Montgomery County receives an average of 41.5 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.

How hot does Montgomery County get in summer?

The average summer temperature (June-August) in Montgomery County is 75.3°F. The county experiences an average of 31 days per year above 90°F.

How cold are winters in Montgomery County?

The average winter temperature (December-February) in Montgomery County is 32.3°F. January, typically the coldest month, averages 29.3°F.

Track your own weather in Montgomery County

Ambient Weather personal weather stations give you hyperlocal climate data.

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated May 14, 2026Reviewed by Evan Brooks, Data Editor

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