By state

Ground snow load by state

Planning ranges for the populated parts of each state, read from the ASCE 7 ground snow load map. Mountainous states are marked case study, where elevation sets the value and a site-specific lookup is required. The number that governs a permit is the one your building department or the ASCE 7 Hazard Tool gives for your address.

Northeast

State	Range (psf)	Typical	Band
Connecticut	25–40	30	moderate
Maine	50–100	60	very high
Massachusetts	30–50	40	high
New Hampshirecase study	50–100	60	very high
New Jersey	20–30	25	moderate
New Yorkcase study	25–70	40	high
Pennsylvania	20–40	30	moderate
Rhode Island	25–35	30	moderate
Vermontcase study	45–90	60	very high

Midwest

State	Range (psf)	Typical	Band
Illinois	20–30	25	moderate
Indiana	20–30	25	moderate
Iowa	25–40	30	moderate
Kansas	15–25	20	moderate
Michigan	30–70	40	high
Minnesota	35–60	50	high
Missouri	15–25	20	moderate
Nebraska	20–35	30	moderate
North Dakota	30–45	40	high
Ohio	20–30	25	moderate
South Dakotacase study	25–50	35	high
Wisconsin	30–60	40	high

South

State	Range (psf)	Typical	Band
Alabama	0–5	5	very low
Arkansas	5–15	10	low
Delaware	15–25	20	moderate
District of Columbia	20–25	25	moderate
Florida	0–0	0	very low
Georgia	0–10	5	very low
Kentucky	10–20	15	low
Louisiana	0–5	0	very low
Marylandcase study	20–35	25	moderate
Mississippi	0–5	0	very low
North Carolinacase study	5–30	10	low
Oklahoma	5–15	10	low
South Carolina	0–10	5	very low
Tennesseecase study	5–20	10	low
Texas	0–15	5	very low
Virginiacase study	10–30	20	moderate
West Virginiacase study	20–50	30	moderate

West

State	Range (psf)	Typical	Band
Alaskacase study	40–300	60	very high
Arizonacase study	0–50	5	very low
Californiacase study	0–200	0	very low
Coloradocase study	25–150	35	high
Hawaii	0–0	0	very low
Idahocase study	20–120	40	high
Montanacase study	30–130	40	high
Nevadacase study	0–120	10	low
New Mexicocase study	5–60	15	low
Oregoncase study	5–150	15	low
Utahcase study	20–150	35	high
Washingtoncase study	5–150	20	moderate
Wyomingcase study	25–130	40	high