Frost Dates for Paso Robles, CA
Elevation: 223 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 15
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 10
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 31
First Fall Frost
November 1
Hard Freeze (28°F)
Last Spring Hard Freeze
February 9
First Fall Hard Freeze
November 26
Growing Season
240 Days
March 15 to November 10
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.
Csa
Hot-Summer Mediterranean
Hot, dry summers and mild, wet winters. Classic Mediterranean climate ideal for grapes, olives, tomatoes, and herbs. Summer irrigation is usually necessary.
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 | 62° | 48° | 34° |
| February | 64° | 50° | 37° |
| March | 68° | 54° | 40° |
| April | 73° | 57° | 41° |
| May | 80° | 63° | 46° |
| June | 87° | 68° | 50° |
| July | 91° | 72° | 53° |
| August | 92° | 72° | 53° |
| September | 89° | 69° | 50° |
| October | 81° | 62° | 43° |
| November | 69° | 53° | 37° |
| December | 61° | 47° | 33° |
Precipitation
0"
2"
4"
6"
7.4"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 7.4 |
| February | 5.9 |
| March | 5.3 |
| April | 2.7 |
| May | 0.0 |
| June | 0.0 |
| July | 0.0 |
| August | 0.0 |
| September | 0.0 |
| October | 0.7 |
| November | 4.3 |
| December | 5.4 |
Sunrise / Sunset
Daylight
Pacific Time (PT)
Longest: 14h 25m · Shortest: 9h 35m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:17 AM | 5:07 PM | 9h 50m |
| February | 6:56 AM | 5:38 PM | 10h 42m |
| March | 7:20 AM | 7:04 PM | 11h 44m |
| April | 6:36 AM | 7:30 PM | 12h 55m |
| May | 6:03 AM | 7:55 PM | 13h 53m |
| June | 5:51 AM | 8:15 PM | 14h 24m |
| July | 6:03 AM | 8:14 PM | 14h 11m |
| August | 6:26 AM | 7:47 PM | 13h 21m |
| September | 6:51 AM | 7:04 PM | 12h 13m |
| October | 7:16 AM | 6:20 PM | 11h 04m |
| November | 6:46 AM | 4:50 PM | 10h 05m |
| December | 7:11 AM | 4:47 PM | 9h 36m |
Nearby Stations
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