Frost Dates for Oro Valley, AZ

Based on data from Catalina Sp weather station, 3 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 2
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 11
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 8
First Fall Frost November 4

Hard Freeze (28°F)

Last Spring Hard Freeze March 12
First Fall Hard Freeze November 21
32.39°N, -110.97°W © OpenStreetMap

Growing Season

223 Days April 2 to November 11

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

30° 50° 70° 90° 110°
49°
High: 67°F
Avg: 49°F
Low: 31°F
Jan
50°
High: 68°F
Avg: 50°F
Low: 32°F
Feb
56°
High: 75°F
Avg: 56°F
Low: 36°F
Mar
62°
High: 82°F
Avg: 62°F
Low: 43°F
Apr
71°
High: 91°F
Avg: 71°F
Low: 51°F
May
80°
High: 101°F
Avg: 80°F
Low: 60°F
Jun
85°
High: 100°F
Avg: 85°F
Low: 71°F
Jul
84°
High: 98°F
Avg: 84°F
Low: 69°F
Aug
79°
High: 96°F
Avg: 79°F
Low: 62°F
Sep
68°
High: 87°F
Avg: 68°F
Low: 48°F
Oct
57°
High: 76°F
Avg: 57°F
Low: 38°F
Nov
49°
High: 66°F
Avg: 49°F
Low: 31°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 2" 4" 6" 6.0"
5.0"
4.96"
Jan
4.8"
4.80"
Feb
3.2"
3.22"
Mar
0.0"
0.00"
Apr
0.0"
0.00"
May
0.7"
0.72"
Jun
5.6"
5.59"
Jul
5.1"
5.06"
Aug
3.7"
3.68"
Sep
0.0"
0.00"
Oct
0.9"
0.92"
Nov
6.0"
6.04"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h13.5h14h14h13h12h11h10.5h10h
Jan: 6:57 AM – 5:03 PM · 10h 06m
Feb: 6:35 AM – 5:25 PM · 10h 51m
Mar: 6:07 AM – 5:53 PM · 11h 46m
Apr: 5:36 AM – 6:24 PM · 12h 48m
May: 5:10 AM – 6:50 PM · 13h 40m
Jun: 4:56 AM – 7:04 PM · 14h 07m
Jul: 5:02 AM – 6:58 PM · 13h 56m
Aug: 5:24 AM – 6:36 PM · 13h 12m
Sep: 5:54 AM – 6:06 PM · 12h 11m
Oct: 6:25 AM – 5:35 PM · 11h 11m
Nov: 6:51 AM – 5:09 PM · 10h 18m
Dec: 7:04 AM – 4:56 PM · 9h 53m
Daylight Longest: 14h 08m · Shortest: 9h 52m

Nearby Stations

Tohono Chul, AZ February 26 - December 4 Tucson Camp Ave Exp, AZ February 20 - November 27 Tucson U Of A #1, AZ February 11 - December 2 Tucson Wfo, AZ January 20 - December 17 Mt Lemmon Willow Canyon, AZ April 1 - November 19 Oracle 2 Se, AZ March 23 - November 22

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