Maricopa County, Arizona · Frost dates
Maricopa County frost dates.
First-frost, last-frost, and growing-season length for Maricopa County, Arizona. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 02-05
- 20%
- 01-26
- 50%
- 01-07
- 80%
- 12-24
- 90%
- 12-17
First fall frost
- 10%
- 12-06
- 20%
- 12-11
- 50%
- 12-24
- 80%
- 01-06
- 90%
- 01-16
28°F — killing freeze
Last spring freeze
- 10%
- 01-22
- 20%
- 01-15
- 50%
- 01-05
- 80%
- 12-28
- 90%
- 12-21
First fall freeze
- 10%
- 12-18
- 20%
- 12-26
- 50%
- 01-04
- 80%
- 01-13
- 90%
- 01-21
Growing season length (days, 28°F threshold)
- Short year
- 330
- Median
- 364
- Long year
- 396
Source NOAA station
LITCHFIELD PARK, AZ US
13.2 mi · 30 yrs of record (1991–2020) · 1040 ft elev.
Data from LITCHFIELD PARK, AZ US, 13.2 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.