Frost Dates for Tempe Asu, AZ
Elevation: 356 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.
February 13
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.
December 5
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
February 24
First Fall Frost
November 29
Hard Freeze (28°F)
Last Spring Hard Freeze
January 16
First Fall Hard Freeze
December 19
Growing Season
296 Days
February 13 to December 5
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 9b
Avg. annual minimum: 25 to 30°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
30°
50°
70°
90°
110°
Avg High
Avg Temp
Avg Low
Light Frost (32°F)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 71° | 55° | 39° |
| February | 74° | 57° | 41° |
| March | 80° | 63° | 46° |
| April | 87° | 69° | 51° |
| May | 95° | 77° | 59° |
| June | 104° | 85° | 67° |
| July | 106° | 91° | 76° |
| August | 105° | 90° | 75° |
| September | 101° | 85° | 69° |
| October | 91° | 74° | 56° |
| November | 79° | 62° | 45° |
| December | 69° | 54° | 38° |
Precipitation
0"
1"
2"
3"
4.0"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 3.7 |
| February | 3.5 |
| March | 3.5 |
| April | 0.0 |
| May | 0.0 |
| June | 0.0 |
| July | 2.3 |
| August | 4.0 |
| September | 1.9 |
| October | 0.0 |
| November | 0.0 |
| December | 3.8 |
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 | 5:37 PM | 10h 01m |
| February | 7:18 AM | 6:06 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 | 6:16 AM | 6:28 PM | 12h 12m |
| October | 6:38 AM | 5:47 PM | 11h 09m |
| November | 7:06 AM | 5:20 PM | 10h 14m |
| December | 7:30 AM | 5:17 PM | 9h 48m |
Nearby Stations
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