weatherbycounty

Rock County Climate

JanFebMarAprMayJunJulAugSepOctNovDec46.4°AVG °F

Avg Annual Temp

46.4°F

Annual Precip

30.0"

Annual Snowfall

Extreme Heat Days

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
1.0"
0.8"
1.6"
3.0"
3.8"
4.8"
3.5"
3.3"
3.1"
2.4"
1.8"
0.9"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

5a

Minimum winter temperature range for plant survival

Seasonal Overview

Comfort ZoneSpring33°58°8.5"Summer68°73°11.6"Fall34°63°7.3"Winter17°22°2.7"20°40°60°80°100°

National Comparison

Warmer than 17% of US counties
Wetter than 26% of US counties
More seasonal variation than 93% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Rock County

Climate Verdict

Climate data for Rock County is currently being compiled from NOAA sources. Check back soon for detailed weather normals.

Seasonal Breakdown

Seasonal weather data for this county is based on regional climate patterns. Residents experience typical weather variations for their location, with conditions reflecting broader state and regional trends. Consult the NOAA Climate Data Online for detailed seasonal breakdowns as more granular station data becomes available.

Outdoor & Gardening Guidance

Growing season and gardening guidance for Rock County will be added as data becomes available.

Regional Context

Comparative climate data for Rock County is being processed.

Climate Profile

About Rock County Weather

A Rainy Match for the Minnesota Average

While annual temperature data is currently unavailable for Rock County, its 30.0 inches of annual precipitation aligns exactly with the Minnesota state average. This southwestern corner sits well below the national precipitation median, reflecting the drier characteristics of the Great Plains border.

Consistency in the Southwest Corner

Rock County mirrors the state's average rainfall of 30.0 inches perfectly. Although its specific temperature rank is not recorded, its southern latitude typically positions it as one of the warmer regions compared to the 42.8°F state average.

Bordering the Dakota Plains

Rock County shares a climate profile with its neighbors in the Buffalo Ridge region, characterized by steady winds and consistent moisture. Its 30-inch rainfall matches the broader regional trend seen in adjacent Pipestone and Nobles counties.

Limited Seasonal Temperature Records

Specific seasonal averages and extreme heat counts are not available for this county. However, the 30.0 inches of annual precipitation suggest a standard distribution of moisture throughout the growing season and winter months.

Preparing for Southwestern Winds

Residents should focus on wind-resistant infrastructure and moisture management for the 30.0 inches of annual rain. Without specific local temperature data, following regional guidelines for the Minnesota-South Dakota border is the best approach for HVAC sizing.

Frequently Asked Questions

What is the average temperature in Rock County?
The average annual temperature in Rock County, MN is 46.4°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Rock County get?
Rock County receives an average of 30.0 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Rock County get in summer?
The average summer temperature (June-August) in Rock County is 70.4°F.
How cold are winters in Rock County?
The average winter temperature (December-February) in Rock County is 19.8°F. January, typically the coldest month, averages 16.5°F.

Track your own weather in Rock County

Ambient Weather personal weather stations give you hyperlocal climate data.

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Data sources: ERA5 Reanalysis (modeled) via Open-Meteo (gap-filled where station data unavailable).. 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
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