NOAA 1991–2020 Normals · USDA Hardiness Zones
Frost Dates by ZIP Code
31,617 ZIP codes with first and last frost dates, hardiness zone and growing season length.
Browse by hardiness zone
- Zone 10a(775)
- Zone 10b(468)
- Zone 11a(118)
- Zone 11b(13)
- Zone 12a(27)
- Zone 12b(98)
- Zone 13a(70)
- Zone 13b(13)
- Zone 1a(2)
- Zone 1b(6)
- Zone 2a(20)
- Zone 2b(13)
- Zone 3a(19)
- Zone 3b(190)
- Zone 4a(717)
- Zone 4b(1,138)
- Zone 5a(2,141)
- Zone 5b(2,458)
- Zone 6a(4,371)
- Zone 6b(4,319)
- Zone 7a(3,772)
- Zone 7b(2,888)
- Zone 8a(2,409)
- Zone 8b(2,489)
- Zone 9a(1,662)
- Zone 9b(1,405)
Largest ZIP codes
- 77494Katy · 9a
- 08701Lakewood · 7a
- 77449Katy · 9b
- 78660Pflugerville · 9a
- 77433Cypress · 9a
- 60629Chicago · 6a
- 77084Houston · 9b
- 11368Corona · 7b
- 11208Brooklyn · 7b
- 79936El Paso · 8b
- 11385Ridgewood · 7b
- 92336Fontana · 10a
- 90011Los Angeles · 10b
- 37013Antioch · 7b
- 90650Norwalk · 10b
- 30044Lawrenceville · 8a
- 11226Brooklyn · 7b
- 94565Pittsburg · 9b
- 11373Elmhurst · 7b
- 91331Pacoima · 10a
- 77573League City · 9b
- 79938El Paso · 8b
- 10467Bronx · 7b
- 77429Cypress · 9b
- 90044Los Angeles · 10b
- 78130New Braunfels · 9a
- 75052Grand Prairie · 8b
- 92335Fontana · 10a
- 11236Brooklyn · 7b
- 90250Hawthorne · 10b
- 11219Brooklyn · 7b
- 90805Long Beach · 10b
- 90201Bell Gardens · 10b
- 10314Staten Island · 7b
- 91342Sylmar · 10a
- 11207Brooklyn · 7b
- 78641Leander · 9a
- 00926San Juan · 13a
- 10025New York · 7b
- 34787Winter Garden · 9b
Coverage by state
- Texas(1,684)
- New York(1,624)
- California(1,614)
- Pennsylvania(1,461)
- Illinois(1,154)
- Ohio(1,127)
- Florida(953)
- Michigan(913)
- Missouri(811)
- Virginia(773)
- North Carolina(770)
- Minnesota(732)
- Wisconsin(716)
- Iowa(707)
- Georgia(668)
- Indiana(663)
- West Virginia(649)
- Kentucky(622)
- New Jersey(570)
- Tennessee(560)
- Oklahoma(554)
- Alabama(552)
- Washington(534)
- Kansas(526)
- Massachusetts(515)
- Nebraska(498)
- Louisiana(466)
- Arkansas(441)
- Colorado(432)
- Maryland(424)
- South Carolina(389)
- Maine(372)
- Arizona(372)
- Mississippi(367)
- Oregon(351)
- North Dakota(294)
- New Mexico(274)
- Connecticut(273)
- South Dakota(248)
- Montana(246)
- Utah(239)
- New Hampshire(234)
- Vermont(232)
- Idaho(213)
- Alaska(183)
- Nevada(153)
- Puerto Rico(129)
- Wyoming(113)
- Hawaii(92)
- Rhode Island(74)
- Delaware(63)
- District of Columbia(28)