Frost Dates for Maryvale, AZ

Based on data from Youngtown weather station, 10 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. January 20
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 15
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 2
First Fall Frost December 8

Hard Freeze (28°F)

Last Spring Hard Freeze January 3
First Fall Hard Freeze December 29
33.50°N, -112.18°W © OpenStreetMap

Growing Season

330 Days January 20 to December 15

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

40° 60° 80° 100°
53°
High: 65°F
Avg: 53°F
Low: 41°F
Jan
56°
High: 69°F
Avg: 56°F
Low: 44°F
Feb
63°
High: 77°F
Avg: 63°F
Low: 49°F
Mar
69°
High: 84°F
Avg: 69°F
Low: 55°F
Apr
78°
High: 93°F
Avg: 78°F
Low: 64°F
May
87°
High: 102°F
Avg: 87°F
Low: 72°F
Jun
92°
High: 105°F
Avg: 92°F
Low: 80°F
Jul
91°
High: 104°F
Avg: 91°F
Low: 79°F
Aug
86°
High: 98°F
Avg: 86°F
Low: 73°F
Sep
73°
High: 87°F
Avg: 73°F
Low: 60°F
Oct
61°
High: 74°F
Avg: 61°F
Low: 48°F
Nov
52°
High: 64°F
Avg: 52°F
Low: 40°F
Dec
Avg High Avg Temp Avg Low

Precipitation

0" 2" 4" 4.0"
3.5"
3.52"
Jan
4.0"
4.01"
Feb
3.3"
3.29"
Mar
0.0"
0.00"
Apr
0.0"
0.00"
May
0.0"
0.00"
Jun
1.4"
1.45"
Jul
3.7"
3.72"
Aug
0.5"
0.48"
Sep
0.0"
0.00"
Oct
0.0"
0.00"
Nov
2.6"
2.64"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h13.5h14h14h13.5h12h11h10h10h
Jan: 6:60 AM – 5:00 PM · 10h 00m
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 51m
May: 5:08 AM – 6:52 PM · 13h 45m
Jun: 4:53 AM – 7:07 PM · 14h 13m
Jul: 4:59 AM – 7:01 PM · 14h 01m
Aug: 5:22 AM – 6:38 PM · 13h 15m
Sep: 5:54 AM – 6:06 PM · 12h 12m
Oct: 6:26 AM – 5:34 PM · 11h 08m
Nov: 6:53 AM – 5:07 PM · 10h 13m
Dec: 7:07 AM – 4:53 PM · 9h 47m
Daylight Longest: 14h 14m · Shortest: 9h 46m

Nearby Stations

Litchfield Park, AZ January 7 - December 24 Phoenix Deer Valley Muni AP, AZ January 8 - December 25 Wittmann 1se, AZ February 5 - December 11 South Phoenix, AZ January 21 - December 16 Laveen 3 Sse, AZ January 14 - December 22 Phoenix Sky Harbor Intl AP, AZ January 5 - January 3

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