Frost Dates for San Carlos Reservoir, AZ
Elevation: 772 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.
March 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.
November 19
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
March 24
First Fall Frost
November 13
Hard Freeze (28°F)
Last Spring Hard Freeze
February 17
First Fall Hard Freeze
December 1
Growing Season
251 Days
March 13 to November 19
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 9a
Avg. annual minimum: 20 to 25°F
Köppen Climate
The 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.
Temperature
30°
50°
70°
90°
Avg High
Avg Temp
Avg Low
Light Frost (32°F)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 59° | 45° | 31° |
| February | 63° | 49° | 35° |
| March | 70° | 55° | 39° |
| April | 78° | 62° | 47° |
| May | 88° | 72° | 56° |
| June | 98° | 81° | 65° |
| July | 99° | 85° | 71° |
| August | 97° | 84° | 70° |
| September | 93° | 78° | 63° |
| October | 82° | 67° | 51° |
| November | 69° | 54° | 39° |
| December | 59° | 45° | 31° |
Precipitation
0"
2"
4"
6"
6.1"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 6.0 |
| February | 5.8 |
| March | 5.2 |
| April | 0.0 |
| May | 0.0 |
| June | 0.0 |
| July | 4.3 |
| August | 4.1 |
| September | 3.8 |
| October | 4.7 |
| November | 6.1 |
| December | 5.2 |
Sunrise / Sunset
Daylight
Mountain Standard Time (MST)
Longest: 14h 12m · Shortest: 9h 48m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:30 AM | 5:32 PM | 10h 02m |
| February | 7:12 AM | 6:01 PM | 10h 49m |
| March | 6:39 AM | 6:24 PM | 11h 45m |
| April | 5:57 AM | 6:47 PM | 12h 50m |
| May | 5:27 AM | 7:10 PM | 13h 43m |
| June | 5:17 AM | 7:28 PM | 14h 11m |
| July | 5:28 AM | 7:27 PM | 13h 60m |
| August | 5:49 AM | 7:03 PM | 13h 14m |
| September | 6:11 AM | 6:22 PM | 12h 12m |
| October | 6:33 AM | 5:42 PM | 11h 09m |
| November | 6:60 AM | 5:15 PM | 10h 15m |
| December | 7:23 AM | 5:12 PM | 9h 49m |
Nearby Stations
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