Find average frost dates for your last spring frost and first fall frost.
If you're a farmer or gardener, get planting dates by zip code, based on your average last spring frost date here.
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 Chart
Below are U.S. cities. Or, see Canadian cities.
|
City
|
State
|
Growing
Season
(Days)
|
Last Frost
Spring
|
First Frost
Fall
|
|
Mobile
|
AL
|
273
|
Feb. 28
|
Nov. 29
|
|
Juneau
|
AK
|
148
|
May 8
|
Oct. 4
|
|
Phoenix
|
AZ
|
*
|
*
|
*
|
|
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.
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Comments
I just won't to know when God
I just won't to know when God is going to tern on the AC. And get rid of thes 100+ days. It's hot in TX and my Hubby is a roofer so it wold be nice just being in the 90's.
Thank you for this
Thank you for this information I am a gardener and this information will really help me to start my vegetation period as you know "Little things make a big difference - some you can change your landscaping". After knowing this data I can now start my work in a appropriate time from my grains. I recently came to know about wholesale flower pots where we can plant flowers and even some light vegetables. I have no experience using this before have anyone of you used this before?
We are in a "90" year droute
We are in a "90" year droute down hear in TX. Didn't do one this year wish I was able but not allowed to us h2o out side.
so it frosts last nite, temp
so it frosts last nite, temp was 32 when I got up.... my tomatoes look very sad. what are the odds of them surviving this frost? It is supposed to get cold again tonite and I plan on covering them. Do you think they may survive??? It should not frost this late where I live, rural area south of KCMO. Tks Kat
Tomatoes are very sensitive
Tomatoes are very sensitive to frost; it will kill them. Even cold weather is harmful to their health, although it is not as deadly as frost. When you say that your plants "look sad" do you mean that they are limp and floppy or do sections of the leaves look very dark green and mushy like lettuce that's been in the fridge for too long? if that's the case... severe damage has occurred. It's a good idea to cover them with plastic sheeting or individually with inverted clear plastic jugs at night and uncover them during the day until all threat of frost has passed. As for survival...you will know for sure within the next week or two. Also, keep the plants and soil wet as the moisture raises the temp needed for frost to form.
Thank you for the
Thank you for the information. Now, we can grow our vegetables according to the table given above. I didn't know about much things. I am happy that this blog is providing many informative knowledge. Hope in the coming days also you will provide this kinds of knowledge. :D
Thanks. Now I known around
Thanks. Now I known around when I should start my vegetable garden. P.S. Does anybody know how to keep birds from eating the corn in your garden?
This answer depends on the
This answer depends on the size of your garden. In my garden, I tie 8 inch strips of thick tinfoil to poles and distribute them through out my garden. The wind causes a slight sound and the sun glinting off the tinfoil simulates movement, and this seems to keep the birds away from my plants. This would not be practical for large gardens.
When is the last frost date
When is the last frost date for Spring 2011 in Zachary Louisiana 70791
Hi--if you see the link at
Hi--if you see the link at the bottom, you can find your frost date by state. Then pick closest weather station. If you live near Baton Rouge, you can see that that the 50% probability of frost date (32 degrees) is February 26. Of course, this is based on 30 years of history--every year is different!