Frost dates for Lodi, California
Half of years have their last spring frost by February 9, but 1 year in 10 still frosts after March 7.
A frost date is really a percentile from 30 years of records at a nearby weather station: in about half of years a frost still comes after the median date. Both numbers are below, so you can choose the risk yourself.
The odds
Last spring frost
How often a frost still comes on or after each date.
- 1 year in 10
- March 7
- 1 year in 5
- February 28
- 3 years in 10
- February 22
- 2 years in 5
- February 15
- Half of years (the median)
- February 9
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- November 17
- 1 year in 5
- November 24
- 3 years in 10
- November 29
- 2 years in 5
- December 1
- Half of years (the median)
- December 5
- Growing season
- about 301 days
- Hardiness zone nearby
- 9b
- Summer days
- a usual high of about 33 °C91 °F
- Lettuce and spinach run to seed
- May to September, in hot, long days (how we know)
Summer and rain
A growing garden needs about 25 mm1 in of water a week, rain and watering together. Here is what a normal month brings.
- Nearly every drop is yours
- May to October: rain brings less than a quarter of the water a growing garden needs, about 25 mm1 in a week (how we know)
Month by month
- January
- high ~14 °C57 °F · low ~4 °C40 °F · rain ~89 mm3.5 in
- February
- high ~17 °C63 °F · low ~5 °C42 °F · rain ~87 mm3.4 in
- March
- high ~20 °C69 °F · low ~7 °C45 °F · rain ~63 mm2.5 in
- April
- high ~23 °C74 °F · low ~8 °C47 °F · rain ~39 mm1.5 in
- May
- high ~27 °C81 °F · low ~11 °C52 °F · rain ~17 mm0.7 in
- June
- high ~31 °C88 °F · low ~14 °C57 °F · rain ~4.6 mm0.2 in
- July
- high ~34 °C92 °F · low ~15 °C59 °F · rain ~0.3 mm0.01 in
- August
- high ~33 °C92 °F · low ~15 °C58 °F · rain ~0.8 mm0.03 in
- September
- high ~31 °C89 °F · low ~13 °C56 °F · rain ~2.5 mm0.1 in
- October
- high ~26 °C79 °F · low ~10 °C50 °F · rain ~24 mm0.9 in
- November
- high ~18 °C65 °F · low ~6 °C43 °F · rain ~47 mm1.8 in
- December
- high ~14 °C57 °F · low ~4 °C39 °F · rain ~92 mm3.6 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Lodi station (listed by NOAA as Lodi HCN, USC00045032), at 38.11, -121.29. These are that station’s own records, unshifted. The further your garden is from it, the less exactly they describe your ground. The planner finds the nearest station to your garden and lowers its confidence with distance, so no number is presented as if it were measured in your garden.
Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a few hundred feet away does not. No table can know that about your garden. A few seasons of your own logged frosts can.
ZIP codes nearest this station
95207, 95209, 95210, 95212, 95219, 95220, 95237, 95240, 95242, 95258, 95632, 95680, 95686.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Sacramento 5 ESE, CA, last frost by January 12
- Livermore, CA, last frost by February 15
- Woodland 1 WNW, CA, last frost by February 7
- Mt Hamilton, CA, last frost by May 3
- Auburn, CA, last frost by February 25
- Oakland Museum, CA, frost is rare
Other stations in California.
- Oakland Metro International Airport, CA, last frost by January 7
- San Francisco Oceanside, CA, frost is rare
- Skyline Ridge Preserve, CA, last frost by March 21
- Fresno 5 NE, CA, last frost by January 30
- Shelter Cove Aviation, CA, frost is rare
- Oxnard, CA, frost is rare
- Woodland Hills Pierce College, CA, last frost by January 24
- Burbank Glendale Pasadena Airport, CA, frost is rare
When do I plant? · Where the dates come from
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