Frost Chart for United States

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The Old Farmer's Almanac
2013 Weather Watcher's Calendar

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Source: Courtesy of National Climatic Center

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Find average frost dates for your last spring frost and first fall frost.

(If you're a farmer or gardener, 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 considerable variations. The possibility of frost occurring after the spring dates and before the fall dates is 50 percent. The classification of freezing temperatures is usually based on their effect on plants, with the following commonly accepted categories:

Light freeze:

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

Moderate freeze:

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

Severe freeze:

24°F and colder—damage to most plants.

Frost Dates

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

City State

Growing
Season
(Days)

Last Spring
Frost Dates
First Fall
Frost Dates
Mobile AL 273 Feb. 28 Nov. 29
Juneau AK 148 May 8 Oct. 4
Flagstaff AZ 106 June 9 Sept. 22
Phoenix AZ * * *
Prescott AZ 163 May 7 Oct. 18
Tucson AZ 324 Jan. 19 Dec. 18
Pine Bluff AR 240 Mar. 16 Nov. 12
Eureka CA 323 Jan. 27 Dec. 16
Sacramento CA 296 Feb. 10 Dec. 4
San Francisco CA * * *
Denver CO 157 Apr. 30 Oct. 4
Hartford CT 166 Apr. 26 Oct. 9
Wilmington DE 202 Apr. 10 Oct. 30
Miami FL * * *
Tampa FL 338 Jan. 28 Jan. 3
Athens GA 227 Mar. 24 Nov. 7
Savannah GA 268 Mar. 1 Nov. 25
Boise ID 147 May 10 Oct. 6
Chicago IL 187 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
Atlantic IA 148 May 2 Sept. 28
Cedar Rapids IA 163 Apr. 25 Oct. 6
Topeka KS 174 Apr. 19 Oct. 11
Lexington KY 192 Apr. 15 Oct. 25
Monroe LA 256 Mar. 3 Nov. 15
New Orleans LA 300 Feb. 12 Dec. 11
Portland ME 156 May 2 Oct. 6
Baltimore MD 200 Apr. 11 Oct. 29
Worcester MA 170 Apr. 26 Oct. 14
Lansing MI 145 May 10 Oct. 3
Marquette MI 154 May 11 Oct. 13
Duluth MN 124 May 21 Sept. 23
Willmar MN 154 Apr. 30 Oct. 1
Columbus MS 248 Mar. 13 Nov. 16
Vicksburg MS 240 Mar. 20 Nov. 16
Jefferson City MO 188 Apr. 13 Oct. 18
Fort Peck MT 141 May 8 Sept. 26
Helena MT 121 May 19 Sept. 18
Blair NE 167 Apr. 25 Oct. 10
North Platte NE 137 May 9 Sept. 24
Las Vegas NV 283 Feb. 16 Nov. 27
Concord NH 124 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
Albany NY 153 May 2 Oct. 3
Syracuse NY 168 Apr. 28 Oct. 13
Fayetteville NC 222 Mar. 28 Nov. 5
Bismarck ND 129 May 14 Sept. 21
Akron OH 192 Apr. 18 Oct. 28
Cincinnati OH 192 Apr. 13 Oct. 23
Lawton OK 223 Mar. 29 Nov. 7
Tulsa OK 225 Mar. 27 Nov. 7
Pendleton OR 187 Apr. 13 Oct. 18
Portland OR 236 Mar. 23 Nov. 15
Franklin PA 164 May 6 Oct. 17
Williamsport PA 168 Apr. 30 Oct. 15
Kingston RI 147 May 8 Oct. 3
Charleston SC 260 Mar. 9 Nov. 25
Columbia SC 214 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 185 Apr. 18 Oct. 20
Denton TX 243 Mar. 18 Nov. 16
San Antonio TX 270 Feb. 28 Nov. 25
Cedar City UT 133 May 21 Oct. 1
Spanish Fork UT 167 May 1 Oct. 16
Burlington VT 147 May 8 Oct. 3
Norfolk VA 247 Mar. 20 Nov. 23
Richmond VA 206 Apr. 6 Oct. 30
Seattle WA 251 Mar. 10 Nov. 17
Spokane WA 153 May 2 Oct. 3
Parkersburg WV 183 Apr. 21 Oct. 22
Green Bay WI 150 May 6 Oct. 4
Janesville WI 164 Apr. 28 Oct. 10
Casper WY 120 May 22 Sept. 19
* Frosts do not occur every year.

For more locations click here.

Comments

Hi, I'm from TN this year I

Hi, I'm from TN this year I tried a Tropical banana trees near my pool,i'm not sure the type but, I was wondering for winterizing would they survive in an halfway insulated storage shed?? I had planned on digging them up next weekend and keeping them out of the pot's.

Remove the banana from the

Remove the banana from the pot and place it in a container with moist sand. Store the plant in the shed if the temp. will not drop below 50 degrees F. Stop watering and fertilizing and let the plant go dormant. You can also remove some of the leaves. If the plant is too tall you can chop it down before storing. It will grow back next spring.

HELP, NEED ANSWER ASAP

HELP, NEED ANSWER ASAP PLEEEEEEEEZ. We are expecting the tempertures to drop in tomatoes that are not yet red/ripe. Should we pick them before the weekend?, should we cover them

If you think that the weather

If you think that the weather will warm up again after this first cold spell cover your plants. Tomatoes need lots of warm sunshine to ripen so you may be running out of time. If you decide to pick the green tomatoes put them in a brown paper bag with an apple and close it up. The ethylene gas from the apple will ripen the tomatoes.

I'm thinking of planting

I'm thinking of planting hollyhocks from seed in Tacoma, WA. It is now mid-October and most sites I visited said plant them in fall about two months before the first frost. How exact should I be? First frost here is Nov. 10 - 20. Am I safe planting them now or should I wait another year?

I live in Eastern Panhandle

I live in Eastern Panhandle of WV, just got a fig tree and put it in planter on porch, has some small figs on it. Just wondering if I can put it in garage for the winter and will the figs produce this year ?? I now leave it in the sun as much as I can.

You might be interested in

You might be interested in this article on figs:

http://www.almanac.com/plant/figs

The Eastern Panhandle of West Virginia is in USDA Hardiness Zone 6. Figs are hardy from 8 to 11, or sometimes 6 or 7, depending on cultivar. So yes, once your fig tree loses its leaves in fall and goes dormant, before temperatures dip below 40 degrees F, move the tree into an unheated garage or cellar, in a dry spot. It will not need light during dormancy. Water the plant sparingly over winter, about every 3 to 4 weeks. Move the plant back outdoors once temperatures consistently are above 40 F in spring.

Fig trees may not produce edible, mature fruit until they are about 3 to 5 years old. It sounds like your tree does have the baby fruit starting, but these may not mature in time this season, since the fig needs to stay on the tree to ripen. If the fruit is larger than pea size, remove them before moving the plant indoors for winter, to help the plant conserve energy. Keep any fruit that is pea-size or smaller; if properly protected, these may survive the winter and grow to maturity the next year.

Is tonight the first frost in

Is tonight the first frost in Howard county, Maryland?

This chart is essentially

This chart is essentially useless to over half the state of Arizona. It only has two cities, both of which are in the bottom half of the state that does not include any towns in the north of the state, which have DRASTICALLY different climates. Very sad.

Flagstaff frost dates

Flagstaff frost dates are
Last spring frost June 9
First fall frost Sept. 22

Prescott frost dates are
Last spring frost May 7
First fall frost Oct. 18

We will add more dates to our frost chart in the near future.

How deep does the soil freeze

How deep does the soil freeze in coastal rhode island in an average year?

We're a bunch of volunteers

We're a bunch of volunteers and starting a new scheme in our community. Your website provided us with helpful information to work on. You have done a formidable activity and our entire group will likely be grateful to you.

I have two places in mind for

I have two places in mind for my mini vegetable garden. I live on a military base so i cant use my yard. There is a designated area on the east side of my house for flowers amd plants, and a long patch on the west side of my house but at this time of year, the tall fence facing south is shading that patch. I like my fenced off area in case of critters but the lack of sunlight means ill have to wait to plant right? Or should i just use the east side patch? This is my first garden...ever. everything i touch dies and i dont want to leave any questions unanswered before i get started. Please help.

You can plant some veggies in

You can plant some veggies in the west side garden. Try spinach, lettuce, broccoli and maybe some below ground crops like carrots and onions. Plant sun loving tomatoes, peppers and flowers in the east side patch. Good luck!

hi Almanac, your website and

hi Almanac, your website and info. are phenomenal, can somebody please let me know if it's okay to plant the different roses i bought pre-packaged from Dept. store, we live in the Toms River, N.J. area and i want to plant them before March 20th, it's the 14th of March and the packages say to plant them once you buy them, i've kept them inside for about a week and they have been budding amazing thus far having them inside, please help, thank you in advance.

Zi, Go to our Roses page for

Zi, Go to our Roses page for tips on how to plant and grow roses: http://www.almanac.com/plant/roses
Plant rose shrubs just after your last frost in the spring. Make sure you plant in a place that gets at least 6 hours of sun. Amend the soil with compost to add nutrients and mulch with compost to retain moisture and keep down the weeks. Water deeply every week. Add organic fertilizer when the roses leaf out in the the spring, then every 6 weeks all spring and summer until you are 6 weeks away from your first fall frost. See our Roses page for more details.

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