FrostDateByZip

Frost dates for 93610Chowchilla, CA

The average last spring frost in Chowchilla is February 12 and the average first fall frost is November 30, giving a typical growing season of about 293 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Feb 12

Safer after Mar 17 (1-in-10 risk)

Average first fall frost
Nov 30

Possible by Nov 14 (1-in-10 risk)

Growing season
293 days

First frost typically in 34 days

Frost risk by date

NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
TemperatureLast spring: 90% / 50% / 10% chanceFirst fall: 10% / 50% / 90% chanceGrowing season (50%)Years with at least one
Light frost (36°F)Feb 24 · Mar 23 · Apr 17Oct 30 · Nov 15 · Dec 1235 days100%
Frost / freeze (32°F)Jan 6 · Feb 12 · Mar 17Nov 14 · Nov 30 · Jan 3293 days99%
Hard freeze (28°F)Dec 11 · Jan 7 · Feb 12Nov 24 · Dec 15 · Jan 19341 days72%

Planting calendar for Chowchilla

Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.

CropTaskWindow
TomatoesStart seeds indoorsJan 12 – Mar 20
TomatoesTransplant outdoorsFeb 28 – Aug 10
PeppersStart seeds indoorsJan 12 – Feb 12
PeppersTransplant outdoorsMar 14 – Apr 14
EggplantStart seeds indoorsJan 29 – Feb 27
EggplantTransplant outdoorsMar 14 – Apr 14
CucumbersSow outdoorsMar 14 – Aug 20
Summer squashSow outdoorsFeb 28 – Apr 14
Winter squash & pumpkinsSow outdoorsMar 14 – Apr 14
Snap beansSow outdoorsFeb 28 – Sep 12
Sweet cornSow outdoorsFeb 28 – Aug 10
Watermelon & cantaloupeSow outdoorsMar 14 – Apr 14
OkraSow outdoorsMar 7 – Mar 30
PeasSow outdoors (spring)Jan 12 – Feb 27
PotatoesPlant outdoors (spring)Jan 12 – Mar 14
OnionsStart seeds indoors (spring)Dec 1 – Dec 28
OnionsTransplant outdoors (spring)Jan 29 – Feb 27
BroccoliStart seeds indoors (spring)Dec 25 – Jan 28
BroccoliTransplant outdoors (spring)Jan 29 – Feb 27
BroccoliStart seeds indoors (fall)Jul 31 – Aug 10
BroccoliTransplant outdoors (fall)Aug 30 – Sep 10
CabbageStart seeds indoors (spring)Dec 15 – Jan 12
CabbageTransplant outdoors (spring)Jan 12 – Feb 12
CabbageStart seeds indoors (fall)Jul 21 – Aug 20
CabbageTransplant outdoors (fall)Aug 20 – Sep 20
Leaf lettuceSow outdoors (spring)Jan 12 – Mar 30
Leaf lettuceSow outdoors (fall)Aug 20 – Oct 6
SpinachSow outdoors (spring)Jan 5 – Feb 18
SpinachSow outdoors (fall)Sep 6 – Oct 11
RadishesSow outdoors (spring)Jan 12 – Mar 4
RadishesSow outdoors (fall)Aug 20 – Oct 21
KaleSow outdoors (spring)Jan 29 – Feb 18
KaleSow outdoors (fall)Aug 13 – Sep 20
CarrotsSow outdoors (spring)Feb 12 – Mar 30
CarrotsSow outdoors (fall)Jul 21 – Sep 5
GarlicPlant outdoors (fall)Nov 20 – Dec 21

Where these dates come from

ZIP code 93610 is matched to the NOAA station Madera Muni Ap, CA, 18.9 km away, at 253 ft elevation (27 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Madera Muni Ap, CA (used)253 ftFeb 12Nov 30
Madera, CA270 ftFeb 18Nov 27
Merced Muni Ap, CA152 ftFeb 26Nov 25
Merced, CA154 ftMar 3Nov 24

Frost dates near Chowchilla

Frequently asked questions

When is the last frost in Chowchilla, CA?
For ZIP code 93610, the average last spring frost (32°F) is February 12, based on NOAA 1991-2020 climate normals for the Madera Muni Ap, CA weather station. There is a 1-in-10 chance of a frost after March 17.
When is the first frost in Chowchilla, CA?
The average first fall frost (32°F) is November 30. There is a 1-in-10 chance of frost by November 14, so tender plants are at risk from that point on.
How long is the growing season in 93610?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 293 days long.
Are these frost dates a forecast?
No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.