Growing Degree Days by State
The average growing-degree-day total across the US so far this year is 2729 GDD (base 50°F, accumulated since January 1), measured at 127 NOAA USCRN stations. Growing degree days count the heat a lawn has banked: each day adds the amount its average temperature runs above 50°F, the point where cool-season growth and most pests get going. Turf managers use the running total to time crabgrass pre-emergent, annual bluegrass seedhead suppression, and grub control. Every total here is measured, not modeled.
Growing Degree Days for Your Location
Enter a city or ZIP code for the measured accumulation at the nearest NOAA station, and where it sits against the published turf models.
- Alabama3634 GDD
- Alaska261 GDD
- Arizona4295 GDD
- Arkansas3313 GDD
- California3233 GDD
- Colorado1642 GDD
- Florida5340 GDD
- Georgia4061 GDD
- Idaho1694 GDD
- Illinois2154 GDD
- Indiana2730 GDD
- Iowa2355 GDD
- Kansas2928 GDD
- Kentucky3001 GDD
- Louisiana4497 GDD
- Maine1210 GDD
- Massachusetts1928 GDD
- Michigan1208 GDD
- Minnesota1413 GDD
- Mississippi3357 GDD
- Missouri2920 GDD
- Montana1097 GDD
- Nebraska2264 GDD
- Nevada2460 GDD
- New Hampshire1644 GDD
- New Mexico2238 GDD
- New York1639 GDD
- North Carolina2694 GDD
- North Dakota1542 GDD
- Ohio2093 GDD
- Oklahoma3666 GDD
- Oregon1365 GDD
- Pennsylvania1999 GDD
- Rhode Island1642 GDD
- South Carolina3984 GDD
- South Dakota1880 GDD
- Tennessee2444 GDD
- Texas4564 GDD
- Utah2055 GDD
- Virginia2898 GDD
- Washington1142 GDD
- West Virginia1554 GDD
- Wisconsin1858 GDD
- Wyoming1300 GDD
Some states have no USCRN station, so they aren’t listed above: Connecticut, Delaware, District of Columbia, Hawaii, Maryland, New Jersey, and Vermont. For current soil temperature and lawn-care timing in those areas, enter your ZIP on the homepage.
New to the metric? Read what growing degree days are and how to use them for lawn-care timing. For current soil temperature, planting windows, and lawn-care timing, browse soil temperature by state or the live national soil temperature map.