weatherbycounty

Ouachita County Climate

Ouachita County, Arkansas

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec62.4°AVG °F

Avg Annual Temp

62.4°F

Annual Precip

53.1"

Annual Snowfall

1.5"

Extreme Heat Days

82

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
4.3"
4.7"
5.4"
5.4"
4.5"
3.5"
4.1"
3.2"
3.5"
4.8"
4.2"
5.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

8a

Minimum winter temperature range for plant survival

Growing Degree Days

5,402

Excellent for heat-loving crops

Last spring frost (32°F): 03/21
First fall frost (32°F): 11/06

Seasonal Overview

Comfort ZoneSpring54°70°15.3"Summer78°82°10.8"Fall52°74°12.5"Winter42°46°14.5"20°40°60°80°100°

National Comparison

Warmer than 79% of US counties
Wetter than 84% of US counties
More seasonal variation than 31% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Ouachita County

Climate Verdict

Ouachita County has a warm, averaging 62.4°F year-round, moderately wet with 53.1 inches of annual precipitation, significant summer heat with 81.5 days annually above 90°F, light snow averaging 1.5 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are mild, with January temperatures averaging 42.3°F. summers are hot, with July averaging 81.5°F. The 39°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.

Regional Context

Ouachita County closely matches the Arkansas statewide average temperature of 61.0°F, the county experiences 17.38499999999999 more extreme heat days than the state average.

Climate Profile

About Ouachita County Weather

A Warm Southern Climate Profile

With an annual average temperature of 62.4°F, Ouachita County is significantly warmer than the national median of 54°F. The region experiences a classic humid subtropical climate characterized by long, hot summers.

Above the Arkansas Average

Ouachita County’s 62.4°F average temperature exceeds the state average of 61.0°F. This makes it part of the warmer southern tier of counties where heat is a defining weather feature.

Consistent Heat Across the Region

Ouachita matches the high-heat profile of neighbors like Phillips County, averaging 82 days of extreme heat per year. It is slightly drier than the state average, receiving 53.1 inches of rain compared to the 52.4-inch baseline.

Persistent Heat and Mild Winters

Summer dominates the calendar with a July average of 81.5°F and over 80 days above 90°F. Winters are brief and mild, seeing only 1.5 inches of snow and a January average of 42.3°F.

Prioritize Cooling and Hydration

High-efficiency air conditioning is essential given the 80.1°F summer average. Outdoor activities should be planned for the mornings to avoid the 82 days of extreme heat that occur annually.

Frequently Asked Questions

What is the average temperature in Ouachita County?
The average annual temperature in Ouachita County, AR is 62.4°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Ouachita County get?
Ouachita County receives an average of 53.1 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 Ouachita County?
Yes, Ouachita County receives an average of 1.5 inches of snowfall per year according to NOAA climate normals.
How hot does Ouachita County get in summer?
The average summer temperature (June-August) in Ouachita County is 80.1°F. The county experiences an average of 82 days per year above 90°F.
How cold are winters in Ouachita County?
The average winter temperature (December-February) in Ouachita County is 44.3°F. January, typically the coldest month, averages 42.3°F.

Track your own weather in Ouachita County

Ambient Weather personal weather stations give you hyperlocal climate data.

Shop Weather Stations →

Sponsored

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 Reviewed by Evan Brooks, Data Editor
← Back to Arkansas