Cottage Grove, MN Climate Specs + Top-Rated Window Installers
Local risk and climate data for Cottage Grove, MN sit below, translated into plain terms for a window buyer rather than left as raw codes. 6 installers follow that data instead of a license roster, their rank built from Google's star rating and how many people left one. Checked October 2026.
Google Maps ratings checked · How we rank
6AIECC climate zone · ENERGY STAR Northern zone
Cottage Grove's climate zone, in plain terms
Minneapolis-St. Paul-Bloomington, MN-WI runs a January average near 15°F and climbs to about 73°F by July, a swing that adds up to roughly 7,613 heating degree days most winters, with 726 on the summer cooling side of the ledger.
That load is the actual argument for paying up for a better U-factor in Cottage Grove, separate from anything a brochure claims.
Zone 6A's requirement is the floor; Cottage Grove's specific load is what tells you whether beating that floor is worth the extra cost.
Data: U.S. EPA / DOE, ENERGY STAR, ENERGY STAR Version 7.0 Climate Zones by County/ZIP (Windows, Doors, and Skylights) (V7.0); Pacific Northwest National Laboratory (DOE Building America), Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) (2021 IECC), from the nearest NOAA station 4.3 mi away.
What FEMA's risk data says about Cottage Grove
Neither rating changes a window's energy label, but both are exactly what impact-resistance and design-pressure ratings are built to answer for a Cottage Grove home.
Ask specifically about design pressure and impact rating for Cottage Grove, not just energy performance, if either risk rating comes back on the high side.
- Strong wind
- Very High
- Winter weather
- Relatively Moderate
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Cottage Grove window bids come in
- How to Read an NFRC Window Label Four numbers on one sticker decide most of a window's real-world performance. Here's what each one means.
- ENERGY STAR Window Criteria by Climate Zone ENERGY STAR splits the country into four zones, each with its own numbers. Here they are, and why the Northern zone works backward from the other three.
- Impact Windows vs. Shutters in Florida's Hurricane Zones Florida gives homeowners two paths to a protected opening. Here's how each one is tested, and where the HVHZ raises the bar further.
Cottage Grove's top-rated window installers, by Google
The order below weighs a Google rating against its review count, the same way this site weighs a U-factor against a brochure claim: on the number, not the name. Treat it as a rating, never as proof of a license, bond or HVHZ approval.
- Archcraft Exteriors | South St. PaulGoogle reviews
- Custom One ExteriorsGoogle reviews
- Three Rivers ContractingGoogle reviews
- Renewal by Andersen of the Greater Twin CitiesGoogle reviews
- Premier Window ProsGoogle reviews
- J&S Siding and Gutters, LLCGoogle reviews