First Freeze Dates by US City

The typical first night at or below 32°F in 70 US cities, and the date to finish winterizing before it. Built from NOAA 1991 to 2020 climate normals, here is how.

First freeze in September

Fargo, ND Typical first freeze September 30 Winterize by September 18

First freeze in October

Anchorage, AK Typical first freeze October 1 Winterize by September 18 Cheyenne, WY Typical first freeze October 1 Winterize by September 18 Billings, MT Typical first freeze October 7 Winterize by September 26 Denver, CO Typical first freeze October 9 Winterize by September 27 Madison, WI Typical first freeze October 10 Winterize by September 26 Spokane, WA Typical first freeze October 12 Winterize by September 29 Albany, NY Typical first freeze October 15 Winterize by October 3 Burlington, VT Typical first freeze October 15 Winterize by October 2 Portland, ME Typical first freeze October 15 Winterize by October 2 Hartford, CT Typical first freeze October 16 Winterize by October 3 Minneapolis, MN Typical first freeze October 18 Winterize by October 1 Des Moines, IA Typical first freeze October 20 Winterize by October 4 Grand Rapids, MI Typical first freeze October 20 Winterize by October 4 Boise, ID Typical first freeze October 21 Winterize by October 5 Omaha, NE Typical first freeze October 21 Winterize by October 6 Pittsburgh, PA Typical first freeze October 23 Winterize by October 9 Kansas City, MO Typical first freeze October 24 Winterize by October 9 Cincinnati, OH Typical first freeze October 25 Winterize by October 12 Rochester, NY Typical first freeze October 25 Winterize by October 8 Buffalo, NY Typical first freeze October 26 Winterize by October 10 Columbus, OH Typical first freeze October 27 Winterize by October 14 Detroit, MI Typical first freeze October 27 Winterize by October 14 Chicago, IL Typical first freeze October 28 Winterize by October 15 Indianapolis, IN Typical first freeze October 29 Winterize by October 16 Milwaukee, WI Typical first freeze October 29 Winterize by October 15 Wichita, KS Typical first freeze October 29 Winterize by October 15 Providence, RI Typical first freeze October 30 Winterize by October 16 Baltimore, MD Typical first freeze October 31 Winterize by October 17 Salt Lake City, UT Typical first freeze October 31 Winterize by October 17

First freeze in November

Knoxville, TN Typical first freeze November 2 Winterize by October 21 Oklahoma City, OK Typical first freeze November 2 Winterize by October 21 Albuquerque, NM Typical first freeze November 3 Winterize by October 21 Charlotte, NC Typical first freeze November 3 Winterize by October 22 Nashville, TN Typical first freeze November 3 Winterize by October 22 Raleigh, NC Typical first freeze November 4 Winterize by October 23 Richmond, VA Typical first freeze November 4 Winterize by October 23 St. Louis, MO Typical first freeze November 4 Winterize by October 23 Tulsa, OK Typical first freeze November 4 Winterize by October 20 Louisville, KY Typical first freeze November 7 Winterize by October 28 Boston, MA Typical first freeze November 9 Winterize by October 29 Little Rock, AR Typical first freeze November 10 Winterize by October 29 Philadelphia, PA Typical first freeze November 10 Winterize by October 30 Birmingham, AL Typical first freeze November 11 Winterize by October 30 Cleveland, OH Typical first freeze November 12 Winterize by November 1 Jackson, MS Typical first freeze November 14 Winterize by October 31 Austin, TX Typical first freeze November 16 Winterize by November 1 Memphis, TN Typical first freeze November 16 Winterize by November 2 Washington, DC Typical first freeze November 18 Winterize by November 5 Portland, OR Typical first freeze November 19 Winterize by October 29 Atlanta, GA Typical first freeze November 20 Winterize by November 4 El Paso, TX Typical first freeze November 20 Winterize by November 6 New York, NY Typical first freeze November 20 Winterize by November 6 Seattle, WA Typical first freeze November 23 Winterize by November 6 Charleston, SC Typical first freeze November 27 Winterize by November 8 San Antonio, TX Typical first freeze November 28 Winterize by November 7 Dallas, TX Typical first freeze November 29 Winterize by November 10 Savannah, GA Typical first freeze November 30 Winterize by November 11

First freeze in December

Sacramento, CA Typical first freeze December 2 Winterize by November 16 Houston, TX Typical first freeze December 9 Winterize by November 17 Tucson, AZ Typical first freeze December 9 Winterize by November 21 Fresno, CA Typical first freeze December 14 Winterize by November 29 Las Vegas, NV Typical first freeze December 15 Winterize by November 28 San Jose, CA Typical first freeze December 22 Winterize by December 1 San Francisco, CA Typical first freeze December 26 Winterize by December 11 Jacksonville, FL Typical first freeze December 31 Winterize by November 30 New Orleans, LA Typical first freeze December 31 Winterize by December 1

First freeze in January

Phoenix, AZ Typical first freeze January 3 Winterize by December 18 Orlando, FL Typical first freeze January 10 Winterize by December 18 Tampa, FL Typical first freeze January 12 Winterize by December 23

Cities where a freeze is not likely in most years (Miami, Honolulu, Los Angeles, San Diego) are left out. Missing yours? The nearest listed city is usually within a week.