Frost Dates for Phoenix, AZ
Based on data from Phoenix Sky Harbor Intl AP weather station, 4 miles away
Elevation: 1086 ft
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.
January 5
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.
January 3
This location has a nearly year-round growing season with a brief frost risk period in winter.
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
January 9
First Fall Frost
December 30
Growing Season
364 Days
January 5 to January 3
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 10a
Avg. annual minimum: 30 to 35°F
Köppen Climate
The 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.
Temperature
40°
60°
80°
100°
Avg High
Avg Temp
Avg Low
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 68° | 57° | 46° |
| February | 71° | 60° | 49° |
| March | 78° | 66° | 55° |
| April | 86° | 73° | 61° |
| May | 95° | 82° | 70° |
| June | 104° | 91° | 79° |
| July | 107° | 96° | 85° |
| August | 105° | 94° | 84° |
| September | 100° | 89° | 78° |
| October | 89° | 77° | 66° |
| November | 77° | 65° | 54° |
| December | 66° | 56° | 45° |
Precipitation
0"
1"
2"
3"
3.7"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 3.7 |
| February | 3.0 |
| March | 2.6 |
| April | 0.0 |
| May | 0.0 |
| June | 0.0 |
| July | 2.2 |
| August | 3.1 |
| September | 1.0 |
| October | 0.0 |
| November | 0.0 |
| December | 3.3 |
Sunrise / Sunset
Daylight
Mountain Standard Time (MST)
Longest: 14h 13m · Shortest: 9h 47m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:37 AM | 5:38 PM | 10h 01m |
| February | 7:18 AM | 6:07 PM | 10h 48m |
| March | 6:45 AM | 6:30 PM | 11h 45m |
| April | 6:03 AM | 6:53 PM | 12h 50m |
| May | 5:32 AM | 7:16 PM | 13h 44m |
| June | 5:22 AM | 7:34 PM | 14h 12m |
| July | 5:33 AM | 7:34 PM | 14h 01m |
| August | 5:55 AM | 7:09 PM | 13h 15m |
| September | 6:17 AM | 6:28 PM | 12h 12m |
| October | 6:39 AM | 5:48 PM | 11h 09m |
| November | 7:06 AM | 5:20 PM | 10h 14m |
| December | 7:30 AM | 5:18 PM | 9h 48m |
Nearby Stations
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