Frost dates for Jacksonville Naval Air Station, Florida
Half of years have their last spring frost by February 1, but 1 year in 10 still frosts after March 3.
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 3
- 1 year in 5
- February 24
- 3 years in 10
- February 15
- 2 years in 5
- February 7
- Half of years (the median)
- February 1
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- December 3
- 1 year in 5
- December 12
- 3 years in 10
- December 24
- 2 years in 5
- December 31
- Half of years (the median)
- January 5
- Growing season
- about 330 days
- Hardiness zones nearby
- 9a, 9b
- Summer days
- a usual high of about 33 °C91 °F
- Lettuce and spinach run to seed
- April 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.
- Hot-weather watering
- June to August: days run above 32 °C90 °F and nights stay above 21 °C70 °F, so expect to water daily or every other day (how we know)
Month by month
- January
- high ~19 °C65 °F · low ~8 °C47 °F · rain ~74 mm2.9 in
- February
- high ~20 °C69 °F · low ~10 °C50 °F · rain ~57 mm2.3 in
- March
- high ~24 °C74 °F · low ~13 °C55 °F · rain ~80 mm3.1 in
- April
- high ~27 °C80 °F · low ~16 °C61 °F · rain ~61 mm2.4 in
- May
- high ~30 °C86 °F · low ~20 °C69 °F · rain ~80 mm3.2 in
- June
- high ~32 °C90 °F · low ~23 °C74 °F · rain ~186 mm7.3 in
- July
- high ~33 °C92 °F · low ~24 °C76 °F · rain ~152 mm6 in
- August
- high ~33 °C91 °F · low ~25 °C76 °F · rain ~160 mm6.3 in
- September
- high ~31 °C88 °F · low ~23 °C74 °F · rain ~154 mm6.1 in
- October
- high ~28 °C82 °F · low ~19 °C66 °F · rain ~90 mm3.6 in
- November
- high ~23 °C73 °F · low ~13 °C56 °F · rain ~52 mm2 in
- December
- high ~20 °C67 °F · low ~10 °C50 °F · rain ~62 mm2.4 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Jacksonville Naval Air Station station (listed by NOAA as Jacksonville Nas, USW00093837), at 30.23, -81.67. 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
32003, 32065, 32073, 32202, 32204, 32205, 32207, 32210, 32212, 32217, 32222, 32223…
+5 moreShow fewer
32244, 32254, 32257, 32258, 32259.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Gainesville Regional Airport, FL, last frost by March 3
- Leesburg Municipal Airport, FL, last frost by January 26
Other stations in Florida.
- Orlando Sanford Airport, FL, last frost by January 24
- Kissimmee, FL, last frost by January 28
- Tarpon Springs Sewage Plt, FL, last frost by January 20
- Tampa International Airport, FL, frost is rare
- St Petersburg International Airport, FL, frost is rare
- Sarasota Bradenton Airport, FL, frost is rare
- Nettles Island, FL, frost is rare
- Palm Beach Gardens, FL, frost is rare
When do I plant? · Where the dates come from
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