Frost Dates for Saint David, AZ

Based on data from Benson 6se weather station, 2 miles away

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 12
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 1
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.

Last Spring Frost April 19
First Fall Frost October 26

Hard Freeze (28°F)

Last Spring Hard Freeze March 23
First Fall Hard Freeze November 11
31.90°N, -110.21°W © OpenStreetMap

Growing Season

203 Days April 12 to November 1

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 8a

Avg. annual minimum: 10 to 15°F (−12 to −9°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

BSh Hot Semi-Arid (Steppe)

Hot with low but not negligible rainfall. Less extreme than true desert. Dryland farming techniques and drought-tolerant varieties work well. Mulching and water conservation are key.

Köppen climate map

Temperature

20° 40° 60° 80° 100°
46°
High: 65°F
Avg: 46°F
Low: 27°F
Jan
49°
High: 68°F
Avg: 49°F
Low: 30°F
Feb
55°
High: 74°F
Avg: 55°F
Low: 35°F
Mar
61°
High: 81°F
Avg: 61°F
Low: 41°F
Apr
69°
High: 90°F
Avg: 69°F
Low: 49°F
May
78°
High: 99°F
Avg: 78°F
Low: 58°F
Jun
82°
High: 98°F
Avg: 82°F
Low: 66°F
Jul
80°
High: 95°F
Avg: 80°F
Low: 65°F
Aug
75°
High: 92°F
Avg: 75°F
Low: 58°F
Sep
65°
High: 84°F
Avg: 65°F
Low: 45°F
Oct
54°
High: 73°F
Avg: 54°F
Low: 34°F
Nov
46°
High: 64°F
Avg: 46°F
Low: 27°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 4.6"
3.2"
3.17"
Jan
2.6"
2.59"
Feb
0.7"
0.70"
Mar
0.0"
0.00"
Apr
0.0"
0.00"
May
0.8"
0.83"
Jun
3.7"
3.70"
Jul
4.6"
4.57"
Aug
4.1"
4.06"
Sep
0.0"
0.00"
Oct
1.2"
1.22"
Nov
4.2"
4.15"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h13.5h14h14h13h12h11h10.5h10h
Jan: 6:56 AM – 5:04 PM · 10h 08m
Feb: 6:34 AM – 5:26 PM · 10h 52m
Mar: 6:07 AM – 5:53 PM · 11h 46m
Apr: 5:36 AM – 6:24 PM · 12h 47m
May: 5:11 AM – 6:49 PM · 13h 38m
Jun: 4:58 AM – 7:02 PM · 14h 04m
Jul: 5:03 AM – 6:57 PM · 13h 54m
Aug: 5:25 AM – 6:35 PM · 13h 10m
Sep: 5:54 AM – 6:06 PM · 12h 11m
Oct: 6:24 AM – 5:36 PM · 11h 12m
Nov: 6:50 AM – 5:10 PM · 10h 20m
Dec: 7:02 AM – 4:58 PM · 9h 55m
Daylight Longest: 14h 05m · Shortest: 9h 55m

Nearby Stations

Kartchner Caverns, AZ March 20 - November 15 Tombstone, AZ March 4 - November 29 Ft Huachuca Pioneer Airfield, AZ March 16 - November 21 Sierra Vista, AZ April 5 - November 9 Pearce - Sunsites, AZ April 14 - November 2 Elgin 5 S, AZ April 18 - November 1

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview