Utah Frost Dates
Utah has 167 NOAA weather stations with freeze records in the 1991–2020 climate normals. The typical last spring frost ranges from March 9 at Hite Rs to June 21 at Brian Head; at half the stations it has come by May 11. The first fall frost typically arrives between September 1 at Randolph and November 20 at Hite Rs, with a median of October 5.
The growing season between the typical frosts runs from 76 days at Randolph to 253 days at Hite Rs; 144 days at the median station.
At 5 stations, a freeze is possible in any month.
Every station in Utah
Typical dates have a 50% chance of a frost after them in spring, and before them in fall; safer dates, 10%. A garden can differ from its nearest station, especially in a valley or on a hillside: see why your garden may differ.
| Station | Elevation | Last frost | Safer | First frost | Safer | Season (days) |
|---|---|---|---|---|---|---|
| Alpine | 5,100 ft | May 3 | May 26 | Oct 12 | Sep 29 | 159 |
| Alta | 8,710 ft | Jun 11 | Jun 27 | Sep 18 | Sep 3 | 98 |
| Altamont | 6,456 ft | May 31 | Jun 16 | Sep 23 | Sep 6 | 112 |
| Alton | 7,098 ft | Jun 1 | Jun 15 | Sep 30 | Sep 16 | 120 |
| Angle | 6,410 ft | Jun 17 | Jul 3 | Sep 12 | Aug 30 | 85 |
| Arches Np Hqs | 4,093 ft | Apr 2 | Apr 23 | Oct 30 | Oct 12 | 207 |
| Bear Lake Sp | 5,928 ft | May 15 | Jun 5 | Oct 4 | Sep 22 | 140 |
| Beaver Canyon Pwr House | 7,275 ft | Jun 1 | Jun 15 | Sep 28 | Sep 13 | 120 |
| Big Water | 4,100 ft | Apr 8 | Apr 28 | Nov 1 | Oct 18 | 204 |
| Black Rock | 4,916 ft | May 23 | Jun 11 | Sep 27 | Sep 14 | 124 |
| Blanding | 6,032 ft | Apr 28 | May 16 | Oct 21 | Oct 6 | 174 |
| Blowhard Mtn Radar | 10,694 ft | Jun 7 | Jun 22 | Sep 29 | Sep 14 | 110 |
| Bluff | 4,319 ft | Apr 24 | May 9 | Oct 13 | Oct 1 | 172 |
| Boulder | 6,650 ft | May 4 | May 25 | Oct 14 | Sep 30 | 160 |
| Bountiful Bench | 4,950 ft | Apr 25 | May 14 | Oct 24 | Oct 9 | 181 |
| Bountiful-Val Verda | 4,540 ft | Apr 24 | May 14 | Oct 19 | Oct 5 | 178 |
| Brian Head | 9,770 ft | Jun 21 | Jul 6 | Sep 12 | Sep 1 | 82 |
| Brigham City 28 Wnw | 4,951 ft | May 12 | Jun 8 | Oct 5 | Sep 24 | 144 |
| Brigham City Waste Plt | 4,240 ft | May 5 | May 29 | Oct 5 | Sep 20 | 150 |
| Bryce Canyon Ap | 7,586 ft | A freeze is possible in any month | ||||
| Bryce Canyon Np Hqrs | 7,890 ft | May 23 | Jun 9 | Sep 27 | Sep 13 | 125 |
| Bullfrog Basin | 3,822 ft | Mar 25 | Apr 12 | Nov 10 | Oct 26 | 227 |
| Callao | 4,342 ft | May 14 | Jun 4 | Sep 28 | Sep 14 | 135 |
| Canyonlands-The Needles | 4,906 ft | Apr 30 | May 16 | Oct 11 | Sep 27 | 164 |
| Capitol Reef Np | 5,500 ft | Apr 18 | May 3 | Oct 28 | Oct 14 | 192 |
| Castle Dale | 5,629 ft | May 18 | Jun 8 | Sep 27 | Sep 14 | 128 |
| Castle Valley 1se | 4,905 ft | Apr 19 | May 3 | Oct 21 | Oct 8 | 184 |
| Cedar Breaks Nm | 10,372 ft | Jun 11 | Jun 27 | Oct 3 | Sep 18 | 113 |
| Cedar City 5e | 6,465 ft | May 23 | Jun 8 | Oct 4 | Sep 20 | 130 |
| Cedar City Muni Ap | 5,586 ft | May 21 | Jun 8 | Sep 29 | Sep 17 | 130 |
| Cedar City | 6,090 ft | May 4 | May 28 | Oct 13 | Sep 30 | 159 |
| Cedar Pt | 6,760 ft | May 16 | Jun 2 | Oct 11 | Sep 29 | 145 |
| Circleville | 6,050 ft | May 23 | Jun 13 | Sep 27 | Sep 12 | 125 |
| City Creek Wtp | 5,340 ft | May 13 | May 31 | Oct 7 | Sep 26 | 146 |
| Coalville 13 E | 6,510 ft | A freeze is possible in any month | ||||
| Coalville | 5,550 ft | Jun 7 | Jun 25 | Sep 12 | Aug 28 | 95 |
| Cottonwood Weir | 4,986 ft | Apr 29 | May 30 | Oct 22 | Oct 6 | 174 |
| Cutler Dam | 4,290 ft | May 3 | May 24 | Oct 12 | Sep 27 | 160 |
| Deer Creek Dam | 5,270 ft | May 28 | Jun 15 | Sep 23 | Sep 7 | 119 |
| Delta | 4,620 ft | May 16 | Jun 5 | Sep 29 | Sep 16 | 137 |
| Deseret | 4,590 ft | May 14 | May 31 | Sep 30 | Sep 16 | 137 |
| Dewey | 4,120 ft | Apr 27 | May 9 | Oct 9 | Sep 28 | 165 |
| Dinosaur Nm-Quarry Area | 4,802 ft | May 1 | May 23 | Oct 6 | Sep 25 | 156 |
| Draper-Point Of Mtn | 4,506 ft | Apr 18 | May 6 | Oct 22 | Oct 7 | 185 |
| Duchesne | 5,551 ft | May 6 | May 26 | Oct 5 | Sep 24 | 150 |
| Echo Dam | 5,470 ft | May 30 | Jun 16 | Sep 18 | Sep 4 | 112 |
| Eden-Liberty | 5,195 ft | May 25 | Jun 16 | Sep 26 | Sep 12 | 123 |
| Electric Lake | 8,380 ft | A freeze is possible in any month | ||||
| Enterprise Beryl Jct | 5,150 ft | May 31 | Jun 20 | Sep 20 | Sep 6 | 110 |
| Enterprise | 5,320 ft | May 21 | Jun 7 | Oct 2 | Sep 21 | 132 |
| Ephraim | 5,498 ft | May 28 | Jun 15 | Sep 20 | Sep 5 | 113 |
| Escalante | 5,810 ft | May 8 | May 24 | Oct 10 | Sep 26 | 155 |
| Eskdale | 4,980 ft | May 12 | Jun 3 | Oct 1 | Sep 19 | 140 |
| Fairfield | 4,880 ft | Jun 2 | Jun 24 | Sep 16 | Sep 1 | 103 |
| Farmington 3 Nw | 4,380 ft | Apr 19 | May 7 | Oct 19 | Oct 6 | 181 |
| Ferron | 5,923 ft | May 6 | May 27 | Oct 10 | Sep 28 | 156 |
| Fillmore | 5,127 ft | May 4 | May 26 | Oct 14 | Sep 30 | 160 |
| Flaming Gorge | 6,244 ft | May 26 | Jun 10 | Sep 23 | Sep 9 | 120 |
| Fremont Indian Sp | 5,920 ft | Jun 4 | Jun 21 | Sep 21 | Sep 6 | 106 |
| Ft Duchesne | 5,052 ft | May 19 | Jun 15 | Oct 2 | Sep 19 | 135 |
| Garfield | 4,298 ft | Apr 3 | Apr 19 | Nov 4 | Oct 18 | 213 |
| Goblin Valley Sp | 4,960 ft | Apr 26 | May 10 | Oct 18 | Oct 2 | 173 |
| Grantsville 2w | 4,550 ft | May 2 | May 19 | Oct 14 | Sep 30 | 164 |
| Grouse Creek | 5,320 ft | Jun 4 | Jun 22 | Sep 17 | Aug 31 | 104 |
| Hanksville | 4,308 ft | May 5 | May 23 | Oct 3 | Sep 21 | 149 |
| Hans Flat Rs | 6,600 ft | May 1 | May 24 | Oct 16 | Oct 2 | 163 |
| Hatch | 6,893 ft | Jun 19 | Jul 2 | Sep 13 | Sep 1 | 83 |
| Heber | 5,590 ft | Jun 4 | Jun 21 | Sep 20 | Sep 6 | 106 |
| Hite Rs | 3,850 ft | Mar 9 | Apr 5 | Nov 20 | Nov 4 | 253 |
| Hovenweep Nm | 5,240 ft | May 2 | May 21 | Oct 10 | Sep 27 | 159 |
| Huntsville Monastery | 5,140 ft | Jun 4 | Jun 22 | Sep 16 | Sep 1 | 102 |
| Ibapah | 5,279 ft | Jun 14 | Jul 1 | Sep 8 | Aug 23 | 86 |
| Jarvie Rch | 5,454 ft | May 19 | Jun 4 | Sep 28 | Sep 14 | 132 |
| Jensen | 4,736 ft | May 20 | Jun 5 | Sep 25 | Sep 11 | 126 |
| Johnson Pass | 5,580 ft | May 15 | Jun 4 | Oct 5 | Sep 22 | 142 |
| Kamas | 6,481 ft | Jun 5 | Jun 23 | Sep 17 | Sep 1 | 100 |
| Kanab | 4,900 ft | Apr 29 | May 18 | Oct 22 | Oct 6 | 175 |
| Kanosh | 4,382 ft | Apr 30 | May 21 | Oct 19 | Oct 3 | 172 |
| Kodachrome Basin Park | 5,805 ft | May 31 | Jun 18 | Sep 28 | Sep 15 | 116 |
| Koosharem | 6,930 ft | Jun 6 | Jun 26 | Sep 21 | Sep 5 | 104 |
| La Sal 1sw | 6,787 ft | May 17 | Jun 5 | Oct 6 | Sep 24 | 141 |
| La Verkin | 3,194 ft | Apr 1 | Apr 24 | Nov 5 | Oct 23 | 217 |
| Laketown | 5,980 ft | May 28 | Jun 17 | Sep 24 | Sep 11 | 119 |
| Levan | 5,298 ft | May 10 | May 31 | Oct 7 | Sep 24 | 148 |
| Little Sahara Rec Area | 5,230 ft | May 15 | Jun 5 | Oct 1 | Sep 17 | 137 |
| Loa | 7,070 ft | May 31 | Jun 14 | Sep 21 | Sep 8 | 112 |
| Logan 5 Sw Exp Farm | 4,488 ft | May 12 | May 29 | Sep 28 | Sep 14 | 138 |
| Logan Cache Ap | 4,454 ft | May 8 | May 29 | Oct 2 | Sep 19 | 144 |
| Logan Radio Kvnu | 4,475 ft | May 8 | Jun 2 | Oct 2 | Sep 18 | 145 |
| Logan Utah St Univ | 4,790 ft | Apr 30 | May 19 | Oct 16 | Oct 1 | 166 |
| Lytle Rch | 2,787 ft | Mar 18 | Apr 16 | Nov 9 | Oct 22 | 234 |
| Maeser 9nw | 6,448 ft | May 15 | Jun 7 | Oct 5 | Sep 21 | 143 |
| Manila | 6,393 ft | May 22 | Jun 11 | Sep 29 | Sep 15 | 128 |
| Manti Radio Kmti | 5,498 ft | May 31 | Jun 16 | Sep 21 | Sep 8 | 114 |
| Manti | 5,740 ft | May 11 | Jun 1 | Oct 6 | Sep 24 | 146 |
| Marysvale | 5,845 ft | May 24 | Jun 10 | Sep 25 | Sep 11 | 123 |
| Mexican Hat | 4,109 ft | Apr 11 | Apr 26 | Oct 30 | Oct 17 | 201 |
| Milford Muni Ap | 5,040 ft | May 13 | Jun 2 | Oct 4 | Sep 22 | 143 |
| Milford | 5,009 ft | May 10 | Jun 1 | Oct 2 | Sep 20 | 144 |
| Moab Canyonland Ap | 4,561 ft | Apr 22 | May 8 | Oct 20 | Oct 6 | 179 |
| Moab | 4,053 ft | Apr 11 | Apr 28 | Oct 23 | Oct 8 | 192 |
| Modena | 5,460 ft | May 20 | Jun 6 | Oct 3 | Sep 22 | 136 |
| Monticello #2 | 7,086 ft | May 17 | Jun 4 | Oct 7 | Sep 24 | 141 |
| Monticello 2e | 6,820 ft | May 19 | Jun 6 | Oct 2 | Sep 20 | 133 |
| Moon Lake | 8,125 ft | Jun 11 | Jun 24 | Sep 18 | Sep 5 | 97 |
| Morgan | 5,100 ft | May 25 | Jun 13 | Sep 24 | Sep 11 | 119 |
| Moroni | 5,580 ft | May 26 | Jun 13 | Sep 25 | Sep 9 | 119 |
| Mtn Dell Dam | 5,420 ft | May 7 | May 27 | Oct 14 | Sep 29 | 158 |
| Myton | 5,085 ft | May 7 | May 25 | Oct 5 | Sep 22 | 149 |
| Natural Bridges Nm | 6,508 ft | May 5 | May 27 | Oct 13 | Sep 29 | 157 |
| Neola | 5,950 ft | May 19 | Jun 7 | Sep 29 | Sep 17 | 130 |
| Nephi | 5,146 ft | May 6 | May 24 | Oct 10 | Sep 28 | 156 |
| New Harmony | 5,167 ft | May 9 | May 29 | Oct 11 | Sep 27 | 155 |
| Oak City | 5,095 ft | May 2 | May 21 | Oct 13 | Sep 30 | 162 |
| Ogden Hinkley Ap | 4,470 ft | Apr 22 | May 10 | Oct 22 | Oct 7 | 180 |
| Ogden Ne Bench | 4,572 ft | Apr 19 | May 4 | Oct 22 | Oct 7 | 186 |
| Ogden Pioneer Ph | 4,350 ft | Apr 21 | May 6 | Oct 23 | Oct 8 | 184 |
| Ogden Sugar Factory | 4,280 ft | Apr 22 | May 9 | Oct 18 | Oct 1 | 177 |
| Orderville | 5,460 ft | May 15 | Jun 4 | Oct 8 | Sep 26 | 144 |
| Orem Trtmt Plt | 4,510 ft | Apr 19 | May 9 | Oct 19 | Oct 5 | 182 |
| Ouray 4ne | 4,674 ft | May 2 | May 16 | Oct 3 | Sep 21 | 152 |
| Panguitch | 6,647 ft | Jun 12 | Jun 27 | Sep 12 | Aug 31 | 90 |
| Paria Rs | 4,426 ft | Apr 19 | May 9 | Oct 23 | Oct 9 | 186 |
| Park City | 6,900 ft | May 29 | Jun 14 | Sep 25 | Sep 12 | 117 |
| Partoun | 4,780 ft | May 13 | Jun 5 | Sep 29 | Sep 16 | 137 |
| Pineview Dam | 4,940 ft | May 22 | Jun 8 | Sep 26 | Sep 11 | 125 |
| Pleasant Grove | 4,692 ft | Apr 17 | May 7 | Oct 25 | Oct 10 | 188 |
| Price Carbon Co Ap | 5,921 ft | May 3 | May 21 | Oct 12 | Sep 29 | 160 |
| Provo Byu | 4,570 ft | Apr 18 | May 5 | Oct 21 | Oct 7 | 185 |
| Randolph | 6,290 ft | Jun 14 | Jun 30 | Sep 1 | Aug 18 | 76 |
| Richfield Radio Ksvc | 5,285 ft | May 21 | Jun 7 | Sep 24 | Sep 12 | 125 |
| Richmond | 4,680 ft | May 11 | Jun 2 | Oct 5 | Sep 21 | 143 |
| Roosevelt Radio | 5,014 ft | May 23 | Jun 9 | Sep 22 | Sep 8 | 121 |
| Rosette | 5,685 ft | May 21 | Jun 11 | Oct 2 | Sep 17 | 132 |
| Salina 24 E | 7,560 ft | May 29 | Jun 15 | Sep 26 | Sep 12 | 118 |
| Salt Lake City E Bench | 4,850 ft | Apr 25 | May 10 | Oct 18 | Oct 5 | 175 |
| Salt Lake City Intl Ap | 4,225 ft | Apr 8 | Apr 30 | Oct 31 | Oct 17 | 204 |
| Salt Lake Triad Ctr | 4,280 ft | Mar 31 | Apr 19 | Nov 8 | Oct 23 | 224 |
| Santaquin Chlorinator | 5,160 ft | May 4 | May 28 | Oct 11 | Sep 27 | 157 |
| Scipio | 5,314 ft | May 22 | Jun 10 | Sep 25 | Sep 9 | 122 |
| Scofield Dam | 7,630 ft | Jun 15 | Jul 1 | Sep 12 | Aug 29 | 87 |
| Scofield-Skyline Mine | 8,697 ft | Jun 13 | Jun 30 | Sep 17 | Sep 1 | 94 |
| Silver Lake Brighton | 8,740 ft | A freeze is possible in any month | ||||
| Snake Creek Powerhouse | 6,010 ft | May 31 | Jun 23 | Sep 11 | Aug 14 | 101 |
| Spanish Fk Pwr House | 4,720 ft | Apr 25 | May 13 | Oct 18 | Oct 4 | 174 |
| St George | 2,857 ft | Mar 14 | Apr 6 | Nov 10 | Oct 27 | 239 |
| Sundance | 6,620 ft | May 17 | Jun 8 | Oct 5 | Sep 22 | 138 |
| Sunnyside City Ctr | 6,530 ft | May 5 | May 26 | Oct 15 | Sep 30 | 159 |
| Sunnyside City | 6,511 ft | Apr 26 | May 18 | Oct 25 | Oct 7 | 181 |
| Thiokol Propulsion F S | 4,600 ft | May 17 | Jun 8 | Sep 24 | Sep 9 | 128 |
| Timpanogos Cave | 5,740 ft | May 2 | May 26 | Oct 16 | Oct 1 | 161 |
| Tooele | 4,944 ft | May 2 | May 28 | Oct 16 | Oct 2 | 165 |
| Torrey 7 E | 6,204 ft | Apr 22 | May 9 | Oct 23 | Oct 9 | 183 |
| Tremonton | 4,310 ft | Apr 24 | May 9 | Oct 17 | Oct 3 | 175 |
| Trenton | 4,455 ft | May 17 | Jun 6 | Sep 18 | Sep 1 | 121 |
| Utah Lake Lehi | 4,505 ft | Apr 30 | May 27 | Oct 9 | Sep 26 | 159 |
| Valley Of The Gods | 5,287 ft | Mar 29 | Apr 15 | Nov 6 | Oct 23 | 223 |
| Vernal Municipal Ap | 5,260 ft | May 6 | May 25 | Oct 7 | Sep 25 | 153 |
| Vernal | 5,345 ft | May 7 | May 28 | Oct 6 | Sep 23 | 150 |
| Vernon | 5,471 ft | Jun 1 | Jun 19 | Sep 20 | Sep 4 | 110 |
| Veyo Powerhouse | 4,600 ft | Apr 9 | Apr 28 | Nov 5 | Oct 21 | 207 |
| Wanship Dam | 5,940 ft | Jun 11 | Jun 30 | Sep 12 | Aug 28 | 92 |
| Weber Basin Pump Plt 3 | 4,900 ft | Apr 29 | May 25 | Oct 20 | Oct 1 | 172 |
| Wellington 3 E | 5,400 ft | May 27 | Jun 11 | Sep 26 | Sep 11 | 122 |
| Wendover Ap Awos | 4,237 ft | Apr 18 | May 5 | Oct 23 | Oct 13 | 188 |
| Woodruff | 6,315 ft | A freeze is possible in any month | ||||
| Zion Np | 4,038 ft | Apr 13 | May 2 | Nov 2 | Oct 20 | 202 |
Plan your garden with these dates
Enter your ZIP code in the planner: it picks the nearest of these stations and dates every crop in your beds from its frosts. Free, in your browser.
Questions
When is the last frost in Utah?
It depends on where you are. The typical last spring frost at Utah's NOAA stations ranges from March 9 to June 21, and half of them have had it by May 11. Enter your ZIP code above for the station nearest you.
When is the first frost in Utah?
Typically between September 1 and November 20, depending on the station; the median is October 5. Plan fall crops back from your own station's date.
What do "typical" and "safer" mean?
With the typical (50%) last-frost date, half of years still have a frost after it. With the safer (10%) date, only one year in ten does. In fall it's the other way around: the safer date is the earlier one.
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