Frost Dates: Last Spring Frost and First Fall Frost for U.S. Cities

Find Average Frost Dates for Your Last Spring Frost and First Fall Frost

If your town isn't listed below, try our free Frost Calculator for first/last frost dates by climate station and zip code. (Farmers and gardeners: get planting dates based on first frost dates.)

Dates given are normal averages for a light freeze or frost (32°F); local weather and topography may cause variations. Frost probability after spring dates and before fall dates is 50%. Freezing temperature classifications based on plant effects:

Light freeze:

29°F to 32°F—tender plants killed, little destructive effect on other vegetation.

Moderate freeze:

25°F to 28°F—widely destructive on most vegetation, heavy damage to fruit blossoms and tender/semi-hardy plants.

Severe freeze:

24°F and colder—damage to most plants.

Frost Dates Table

Below are U.S. cities. Or see Canadian cities.

City	State	Growing Season (Days)	Last Spring Frost	First Fall Frost
Juneau	AK	148	May 8	Oct. 4
Mobile	AL	274	Feb. 28	Nov. 29
Pine Bluff	AR	240	Mar. 16	Nov. 12
Phoenix	AZ	*	*	*
Tucson	AZ	333	Jan. 19	Dec. 18
Eureka	CA	323	Jan. 27	Dec. 16
Sacramento	CA	297	Feb. 10	Dec. 4
San Francisco	CA	*	*	*
Denver	CO	156	Apr. 30	Oct. 4
Hartford	CT	165	Apr. 26	Oct. 9
Wilmington	DE	202	Apr. 10	Oct. 30
Miami	FL	*	*	*
Tallahassee	FL	239	Mar. 22	Nov. 17
Athens	GA	227	Mar. 24	Nov. 7
Savannah	GA	268	Mar. 1	Nov. 25
Atlantic	IA	148	May 2	Sept. 28
Cedar Rapids	IA	163	Apr. 25	Oct. 6
Boise	ID	148	May 10	Oct. 6
Chicago	IL	186	Apr. 20	Oct. 24
Springfield	IL	182	Apr. 13	Oct. 13
Indianapolis	IN	181	Apr. 17	Oct. 16
South Bend	IN	175	Apr. 26	Oct. 19
Topeka	KS	174	Apr. 19	Oct. 11
Lexington	KY	192	Apr. 15	Oct. 25
Monroe	LA	256	Mar. 3	Nov. 15
New Orleans	LA	302	Feb. 12	Dec. 11
Worcester	MA	170	Apr. 26	Oct. 14
Baltimore	MD	200	Apr. 11	Oct. 29
Portland	ME	156	May 2	Oct. 6
Lansing	MI	145	May 10	Oct. 3
Marquette	MI	154	May 11	Oct. 13
Duluth	MN	124	May 21	Sept. 23
Willmar	MN	153	Apr. 30	Oct. 1
Jefferson City	MO	187	Apr. 13	Oct. 18
Columbia	MS	247	Mar. 13	Nov. 16
Vicksburg	MS	240	Mar. 20	Nov. 16
Fort Peck	MT	140	May 8	Sept. 26
Helena	MT	121	May 19	Sept. 18
Fayetteville	NC	221	Mar. 28	Nov. 5
Bismarck	ND	129	May 14	Sept. 21
Blair	NE	167	Apr. 25	Oct. 10
North Platte	NE	137	May 9	Sept. 24
Concord	NH	123	May 20	Sept. 21
Newark	NJ	217	Apr. 3	Nov. 7
Carlsbad	NM	215	Mar. 31	Nov. 2
Los Alamos	NM	149	May 11	Oct. 8
Las Vegas	NV	283	Feb. 16	Nov. 27
Albany	NY	153	May 2	Oct. 3
Syracuse	NY	167	Apr. 28	Oct. 13
Akron	OH	192	Apr. 18	Oct. 28
Cincinnati	OH	192	Apr. 13	Oct. 23
Lawton	OK	222	Mar. 29	Nov. 7
Tulsa	OK	224	Mar. 27	Nov. 7
Pendleton	OR	187	Apr. 13	Oct. 18
Portland	OR	236	Mar. 23	Nov. 15
Franklin	PA	163	May 6	Oct. 17
Williamsport	PA	167	Apr. 30	Oct. 15
Kingston	RI	147	May 8	Oct. 3
Charleston	SC	260	Mar. 9	Nov. 25
Columbia	SC	213	Apr. 1	Nov. 1
Rapid City	SD	140	May 9	Sept. 27
Memphis	TN	235	Mar. 22	Nov. 13
Nashville	TN	204	Apr. 6	Oct. 28
Amarillo	TX	184	Apr. 18	Oct. 20
Denton	TX	242	Mar. 18	Nov. 16
San Antonio	TX	270	Feb. 28	Nov. 25
Cedar City	UT	132	May 21	Oct. 1
Spanish Fork	UT	167	May 1	Oct. 16
Norfolk	VA	247	Mar. 20	Nov. 23
Richmond	VA	206	Apr. 6	Oct. 30
Burlington	VT	147	May 8	Oct. 3
Seattle	WA	251	Mar. 10	Nov. 17
Spokane	WA	153	May 2	Oct. 3
Green Bay	WI	150	May 6	Oct. 4
Sparta	WI	133	May 13	Sept. 24
Parkersburg	WV	183	Apr. 21	Oct. 22
Casper	WY	119	May 22	Sept. 19

* Frosts do not occur every year.

For more locations, click here.

Source: 

Courtesy of National Climatic Center