Frost Dates for Tempe, AZ

Based on data from Tempe Asu weather station, 1 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. February 13
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. December 5
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 February 24
First Fall Frost November 29

Hard Freeze (28°F)

Last Spring Hard Freeze January 16
First Fall Hard Freeze December 19
33.41°N, -111.91°W © OpenStreetMap

Growing Season

296 Days February 13 to December 5

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 9b

Avg. annual minimum: 25 to 30°F (−4 to −1°C)

Learn more

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

BWh Hot Desert

Very hot and extremely dry with minimal rainfall. Irrigation is essential for any gardening. Heat-tolerant crops and desert-adapted plants thrive; shade structures help in peak summer.

Köppen climate map

Temperature

30° 50° 70° 90° 110°
55°
High: 71°F
Avg: 55°F
Low: 39°F
Jan
57°
High: 74°F
Avg: 57°F
Low: 41°F
Feb
63°
High: 80°F
Avg: 63°F
Low: 46°F
Mar
69°
High: 87°F
Avg: 69°F
Low: 51°F
Apr
77°
High: 95°F
Avg: 77°F
Low: 59°F
May
85°
High: 104°F
Avg: 85°F
Low: 67°F
Jun
91°
High: 106°F
Avg: 91°F
Low: 76°F
Jul
90°
High: 105°F
Avg: 90°F
Low: 75°F
Aug
85°
High: 101°F
Avg: 85°F
Low: 69°F
Sep
74°
High: 91°F
Avg: 74°F
Low: 56°F
Oct
62°
High: 79°F
Avg: 62°F
Low: 45°F
Nov
54°
High: 69°F
Avg: 54°F
Low: 38°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 1" 2" 3" 4.0"
3.7"
3.68"
Jan
3.5"
3.48"
Feb
3.5"
3.52"
Mar
0.0"
0.00"
Apr
0.0"
0.00"
May
0.0"
0.00"
Jun
2.3"
2.27"
Jul
4.0"
3.97"
Aug
1.9"
1.91"
Sep
0.0"
0.00"
Oct
0.0"
0.00"
Nov
3.8"
3.84"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h13.5h14h14h13h12h11h10h10h
Jan: 6:60 AM – 5:00 PM · 10h 01m
Feb: 6:36 AM – 5:24 PM · 10h 48m
Mar: 6:07 AM – 5:53 PM · 11h 45m
Apr: 5:35 AM – 6:25 PM · 12h 50m
May: 5:08 AM – 6:52 PM · 13h 44m
Jun: 4:54 AM – 7:06 PM · 14h 12m
Jul: 4:60 AM – 7:00 PM · 14h 01m
Aug: 5:23 AM – 6:37 PM · 13h 15m
Sep: 5:54 AM – 6:06 PM · 12h 12m
Oct: 6:26 AM – 5:34 PM · 11h 09m
Nov: 6:53 AM – 5:07 PM · 10h 14m
Dec: 7:06 AM – 4:54 PM · 9h 48m
Daylight Longest: 14h 13m · Shortest: 9h 47m

Nearby Stations

Phoenix Sky Harbor Intl AP, AZ January 5 - January 3 South Phoenix, AZ January 21 - December 16 Scottsdale Muni AP, AZ January 6 - December 26 Laveen 3 Sse, AZ January 14 - December 22 E Mesa, AZ February 1 - December 10 Fountain Hills, AZ January 6 - December 28

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