Frost Dates for Sierra Vista Southeast, AZ

Based on data from Sierra Vista weather station, 7 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 5
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 9
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 11
First Fall Frost November 2

Hard Freeze (28°F)

Last Spring Hard Freeze March 15
First Fall Hard Freeze November 21
31.45°N, -110.22°W © OpenStreetMap

Growing Season

218 Days April 5 to November 9

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 8b

Avg. annual minimum: 15 to 20°F (−9 to −7°C)

Learn more

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

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

20° 40° 60° 80° 100°
45°
High: 61°F
Avg: 45°F
Low: 30°F
Jan
49°
High: 64°F
Avg: 49°F
Low: 33°F
Feb
54°
High: 71°F
Avg: 54°F
Low: 38°F
Mar
60°
High: 78°F
Avg: 60°F
Low: 43°F
Apr
68°
High: 85°F
Avg: 68°F
Low: 50°F
May
77°
High: 94°F
Avg: 77°F
Low: 60°F
Jun
77°
High: 92°F
Avg: 77°F
Low: 63°F
Jul
76°
High: 90°F
Avg: 76°F
Low: 62°F
Aug
72°
High: 87°F
Avg: 72°F
Low: 57°F
Sep
64°
High: 80°F
Avg: 64°F
Low: 47°F
Oct
53°
High: 70°F
Avg: 53°F
Low: 37°F
Nov
46°
High: 62°F
Avg: 46°F
Low: 30°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 5.1"
3.8"
3.79"
Jan
2.9"
2.94"
Feb
0.5"
0.47"
Mar
0.0"
0.00"
Apr
0.0"
0.00"
May
1.8"
1.75"
Jun
4.8"
4.76"
Jul
4.8"
4.80"
Aug
5.1"
5.10"
Sep
0.0"
0.00"
Oct
0.0"
0.00"
Nov
4.1"
4.06"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h13.5h14h14h13h12h11h10.5h10h
Jan: 6:55 AM – 5:05 PM · 10h 09m
Feb: 6:33 AM – 5:27 PM · 10h 53m
Mar: 6:07 AM – 5:53 PM · 11h 46m
Apr: 5:37 AM – 6:23 PM · 12h 47m
May: 5:12 AM – 6:48 PM · 13h 36m
Jun: 4:59 AM – 7:01 PM · 14h 03m
Jul: 5:04 AM – 6:56 PM · 13h 52m
Aug: 5:25 AM – 6:35 PM · 13h 09m
Sep: 5:55 AM – 6:05 PM · 12h 11m
Oct: 6:24 AM – 5:36 PM · 11h 12m
Nov: 6:49 AM – 5:11 PM · 10h 22m
Dec: 7:01 AM – 4:59 PM · 9h 57m
Daylight Longest: 14h 04m · Shortest: 9h 57m

Nearby Stations

Ft Huachuca Pioneer Airfield, AZ March 16 - November 21 Coronado Nmem, AZ April 7 - November 9 Elgin 5 S, AZ April 18 - November 1 Canelo 1 Nw, AZ April 23 - October 30 Tombstone, AZ March 4 - November 29 Kartchner Caverns, AZ March 20 - November 15

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