Frost dates in Arizona
Across 174 NOAA stations in Arizona, the average last spring frost ranges from January 4 at Bullhead City to June 23 at Flagstaff 4 Sw.
| Aguila | March 17 | November 19 | 243 |
| Ajo | January 10 | December 21 | 347 |
| Alamo Dam | March 4 | November 23 | 261 |
| Alpine | June 15 | September 21 | 96 |
| Anvil Rch | March 27 | November 9 | 226 |
| Apache Junction 5 Ne | February 11 | December 10 | 304 |
| Arizona City | February 28 | November 21 | 266 |
| Bagdad | April 7 | November 12 | 217 |
| Beaver Dam | March 7 | November 19 | 251 |
| Bellemont Wfo | June 21 | September 17 | 85 |
| Benson 6Se | April 12 | November 1 | 202 |
| Betatakin | May 7 | October 15 | 159 |
| Bisbee 1Wnw | April 1 | November 10 | 222 |
| Black Rvr Pumps | May 16 | October 13 | 149 |
| Blue Ridge Rs | May 31 | October 2 | 126 |
| Bouse | February 18 | November 28 | 284 |
| Bowie | April 1 | November 6 | 217 |
| Bright Angel Rs | June 3 | September 27 | 113 |
| Bullhead City | January 4 | December 23 | 356 |
| Canelo 1 Nw | April 23 | October 30 | 188 |
| Canyon De Chelly | May 6 | October 8 | 153 |
| Carefree | February 4 | December 16 | 313 |
| Casa Grande | February 5 | December 6 | 305 |
| Casa Grande Nm | February 17 | November 29 | 284 |
| Cascabel | April 24 | October 31 | 187 |
| Castle Hot Springs | January 15 | December 22 | 341 |
| Catalina Sp | April 2 | November 11 | 222 |
| Chandler Heights | February 1 | December 11 | 315 |
| Childs | April 2 | November 11 | 223 |
| Chino Valley | April 27 | October 24 | 178 |
| Chiricahua Nm | April 16 | November 8 | 203 |
| Clifton | February 26 | November 23 | 268 |
| Colorado City | April 26 | October 25 | 180 |
| Cordes | April 5 | November 17 | 221 |
| Coronado Nmem | April 7 | November 9 | 213 |
| Dateland Whitewing Rch | January 25 | December 13 | 324 |
| Diamond M Rch | May 17 | October 10 | 146 |
| Douglas | March 18 | November 13 | 235 |
| Douglas Bisbee Inl Airport | April 11 | November 2 | 203 |
| Duncan | April 24 | October 25 | 183 |
| E Mesa | February 1 | December 10 | 312 |
| Ehrenberg 2 E | January 4 | December 19 | 347 |
| Elgin 5 S | April 18 | November 1 | 195 |
| Eloy 4 Ne | February 24 | November 28 | 273 |
| Flagstaff 4 Sw | June 23 | September 15 | 81 |
| Flagstaff Pulliam Airport | June 4 | September 28 | 115 |
| Florence | January 30 | December 12 | 319 |
| Fountain Hills | January 6 | December 28 | 356 |
| Ft Huachuca Pioneer Airfield | March 16 | November 21 | 246 |
| Ft Thomas 2 Sw | April 1 | November 6 | 217 |
| Ft Valley | June 11 | September 25 | 99 |
| Ganado | May 15 | October 10 | 147 |
| Gila Bend 2Se | January 23 | December 11 | 323 |
| Globe #3 | March 11 | November 21 | 253 |
| Grand Canyon E Entrance | May 10 | October 20 | 165 |
| Grand Canyon Np 2 | June 1 | October 3 | 123 |
| Grand Canyon Np Airport | June 17 | September 24 | 97 |
| Grand Canyon Visitor Ctr | May 2 | October 27 | 177 |
| Green Valley | February 25 | November 27 | 276 |
| Greer | June 5 | September 29 | 113 |
| Happy Jack Rs | June 1 | October 3 | 124 |
| Heber (Black Mesa) Rs | May 23 | October 5 | 135 |
| Holbrook | April 22 | October 24 | 184 |
| Jerome | March 26 | November 25 | 242 |
| Kartchner Caverns | March 20 | November 15 | 237 |
| Keams Canyon | May 16 | October 10 | 147 |
| Kingman Mohave Co Airport | April 2 | November 11 | 220 |
| Kitt Peak | April 26 | November 4 | 195 |
| Kofa Mine | January 11 | January 9 | 365 |
| Lake Havasu City | January 5 | December 29 | 365 |
| Laveen 3 Sse | January 14 | December 22 | 343 |
| Lees Ferry | March 5 | November 19 | 257 |
| Litchfield Park | January 7 | December 24 | 351 |
| Lukachukai | May 3 | October 17 | 163 |
| Maricopa 4 N | February 23 | November 24 | 274 |
| Mc Nary 2N | May 20 | October 11 | 142 |
| Mc Neal | April 6 | November 10 | 215 |
| Meadview 1W | March 5 | November 28 | 265 |
| Meteor Crater | April 30 | October 23 | 174 |
| Miami | February 24 | December 1 | 279 |
| Montezuma Castle Nm | April 16 | October 30 | 196 |
| Monument Valley | April 10 | November 1 | 205 |
| Mormon Flat | January 29 | December 24 | 334 |
| Mt Lemmon Willow Canyon | April 1 | November 19 | 229 |
| Mund'S Park | June 10 | September 27 | 106 |
| Natural Brg | April 9 | November 10 | 211 |
| Nogales 6 N | April 16 | November 2 | 199 |
| Nogales Intl Airport | March 20 | November 17 | 239 |
| Oak Creek Canyon | April 14 | November 5 | 204 |
| Oracle 2 Se | March 23 | November 22 | 242 |
| Oracle Sp | March 29 | November 13 | 225 |
| Organ Pipe Cactus Nm | February 4 | December 15 | 314 |
| Page | March 27 | November 9 | 226 |
| Page Muni Airport | March 7 | November 15 | 250 |
| Painted Desert Np | May 1 | October 20 | 169 |
| Painted Rock Dam | January 21 | December 15 | 327 |
| Paradise | April 21 | October 27 | 188 |
| Parker | January 12 | December 19 | 338 |
| Payson | April 29 | October 24 | 176 |
| Pearce - Sunsites | April 14 | November 2 | 200 |
| Petrified Forest Np | May 4 | October 16 | 162 |
| Phantom Rch | February 9 | December 5 | 295 |
| Phoenix Deer Valley Muni Airport | January 8 | December 25 | 354 |
| Phoenix Sky Harbor Intl Airport | January 5 | January 3 | 365 |
| Picacho 8 Se | February 6 | December 9 | 308 |
| Pinetop 2E | May 22 | October 6 | 138 |
| Pinnacle Peak | January 27 | December 21 | 330 |
| Pipe Spring Nm | May 1 | October 19 | 168 |
| Pleasant Valley | May 6 | October 20 | 165 |
| Portal 4 Sw | May 3 | October 25 | 174 |
| Prescott | April 30 | October 20 | 172 |
| Prescott Love Fld | April 20 | October 27 | 188 |
| Punkin Ctr | March 7 | November 20 | 255 |
| Quartzsite | January 28 | December 6 | 315 |
| Robson Rch | February 7 | December 3 | 298 |
| Roosevelt 1 S | January 17 | December 25 | 342 |
| Safford Ag Ctr | March 25 | November 9 | 228 |
| Safford Muni Airport | March 8 | November 20 | 254 |
| Saguaro Np | January 26 | December 16 | 326 |
| Saint Johns | May 2 | October 14 | 164 |
| San Carlos Reservoir | March 13 | November 19 | 247 |
| San Manuel | February 4 | December 8 | 306 |
| San Simon | April 16 | November 2 | 198 |
| Sanders | May 22 | October 8 | 138 |
| Santa Rita Exp Range | February 25 | December 5 | 282 |
| Sasabe | March 21 | November 20 | 246 |
| Scottsdale Muni Airport | January 6 | December 26 | 353 |
| Sedona | April 1 | November 17 | 229 |
| Seligman | May 10 | October 15 | 154 |
| Show Low Airport | May 5 | October 15 | 162 |
| Sierra Vista | April 5 | November 9 | 216 |
| Snowflake | May 11 | October 10 | 149 |
| Sonoita | March 28 | November 21 | 237 |
| South Phoenix | January 21 | December 16 | 331 |
| Springerville | June 1 | September 26 | 114 |
| St Johns Industrial Airport | May 3 | October 10 | 160 |
| Stewart Mtn Dam | February 13 | December 5 | 295 |
| Sunrise Mtn | June 18 | September 18 | 91 |
| Sunset Crater Nm | June 16 | September 19 | 94 |
| Superior | January 18 | December 28 | 342 |
| Tacna 3 Ne | February 13 | December 1 | 288 |
| Teec Nos Pos | April 11 | November 1 | 200 |
| Tempe Asu | February 13 | December 5 | 298 |
| Temple Bar | February 4 | December 10 | 309 |
| Tohono Chul | February 26 | December 4 | 279 |
| Tombstone | March 4 | November 29 | 264 |
| Tuba City | April 16 | October 28 | 193 |
| Tucson 11 W | February 8 | December 10 | 303 |
| Tucson 17 Nw | February 23 | December 6 | 287 |
| Tucson Camp Ave Exp | February 20 | November 27 | 280 |
| Tucson Intl Airport | February 5 | December 9 | 307 |
| Tucson U Of A #1 | February 11 | December 2 | 293 |
| Tucson Wfo | January 20 | December 17 | 332 |
| Tumacacori Nm | April 5 | November 10 | 217 |
| Tuzigoot | March 30 | November 10 | 223 |
| Twin Arrows | April 14 | October 25 | 192 |
| Wahweap | March 14 | November 16 | 244 |
| Walnut Canyon Nm | May 13 | October 6 | 145 |
| Walnut Creek | May 24 | October 7 | 135 |
| Wickenburg | March 7 | November 20 | 254 |
| Wikieup | March 19 | November 23 | 246 |
| Willcox | April 9 | October 31 | 204 |
| Williams | May 22 | October 5 | 135 |
| Williams 35 Nnw | May 9 | October 19 | 161 |
| Willow Beach | January 7 | December 29 | 358 |
| Window Rock Airport | May 29 | September 28 | 121 |
| Winslow Muni Airport | April 27 | October 18 | 174 |
| Wittmann 1Se | February 5 | December 11 | 306 |
| Wupatki Nm | April 7 | November 3 | 206 |
| Youngtown | January 20 | December 15 | 331 |
| Yucca 1 Nne | February 18 | December 2 | 288 |
| Yuma 27 Ene | January 11 | December 21 | 347 |
| Yuma Proving Ground | January 4 | December 25 | 361 |
| Yuma Quartermaster Depot | January 8 | December 28 | 362 |
Sources
- U.S. Annual/Seasonal Climate Normals, 1991 to 2020 (freeze probability dates by station), NOAA National Centers for Environmental Information, checked 1 November 2026
- Annual/Seasonal Normals 1991 to 2020 documentation, NOAA National Centers for Environmental Information, checked 1 November 2026
- 2024 Gazetteer Files, ZIP Code Tabulation Areas, US Census Bureau, checked 1 November 2026