Frost Dates for Kitt Peak, AZ

Elevation: 2070 m

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 26
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 4

30% Probability

Only 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 May 4
First Fall Frost October 28

Hard Freeze (28°F)

Last Spring Hard Freeze April 7
First Fall Hard Freeze November 17
31.96°N, 111.60°W © OpenStreetMap

Growing Season

192 Days April 26 to November 4

USDA Hardiness Zone

Hardiness 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

Learn more

Köppen Climate

The 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

Avg High Avg Temp Avg Low Light Frost (32°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January51°42°34°
February51°43°34°
March56°47°37°
April63°52°42°
May71°60°49°
June80°70°59°
July80°71°61°
August79°69°60°
September75°66°57°
October68°58°49°
November58°49°40°
December50°42°34°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January5.5
February5.4
March4.6
April0.0
May0.0
June1.2
July5.6
August5.1
September4.5
October1.6
November2.4
December6.1

Sunrise / Sunset

Daylight Mountain Standard Time (MST) Longest: 14h 06m · Shortest: 9h 54m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Standard Time (MST))
Month Sunrise Sunset Daylight
January7:32 AM5:40 PM10h 08m
February7:15 AM6:07 PM10h 52m
March6:43 AM6:29 PM11h 46m
April6:03 AM6:50 PM12h 48m
May5:34 AM7:12 PM13h 38m
June5:24 AM7:29 PM14h 05m
July5:35 AM7:29 PM13h 54m
August5:55 AM7:06 PM13h 10m
September6:15 AM6:26 PM12h 11m
October6:36 AM5:47 PM11h 12m
November7:02 AM5:21 PM10h 20m
December7:25 AM5:20 PM9h 55m

Nearby Stations

Anvil Rch, AZ March 27 - November 9 Tucson 17 Nw, AZ February 23 - December 6 Tucson 11 W, AZ February 8 - December 10 Sasabe, AZMarch 21 - November 20 Green Valley, AZ February 25 - November 27 Tucson Intl AP, AZ February 5 - December 9

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