Growing Degree Days by State
The average growing-degree-day total across the US so far this year is 2848 GDD (base 50°F, accumulated since January 1), measured at 128 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.
- Alabama3801 GDD
- Alaska310 GDD
- Arizona4442 GDD
- Arkansas3499 GDD
- California3361 GDD
- Colorado1730 GDD
- Florida5514 GDD
- Georgia4231 GDD
- Idaho1788 GDD
- Illinois2276 GDD
- Indiana2868 GDD
- Iowa2484 GDD
- Kansas3084 GDD
- Kentucky3156 GDD
- Louisiana4678 GDD
- Maine1270 GDD
- Massachusetts2037 GDD
- Michigan1286 GDD
- Minnesota1496 GDD
- Mississippi3529 GDD
- Missouri3090 GDD
- Montana1147 GDD
- Nebraska2385 GDD
- Nevada2563 GDD
- New Hampshire1735 GDD
- New Mexico2154 GDD
- New York1725 GDD
- North Carolina2832 GDD
- North Dakota1617 GDD
- Ohio2207 GDD
- Oklahoma3863 GDD
- Oregon1453 GDD
- Pennsylvania2118 GDD
- Rhode Island1739 GDD
- South Carolina4152 GDD
- South Dakota1983 GDD
- Tennessee2580 GDD
- Texas4743 GDD
- Utah2153 GDD
- Virginia3039 GDD
- Washington1216 GDD
- West Virginia1640 GDD
- Wisconsin1972 GDD
- Wyoming1356 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.