Frost dates for New Orleans Lakefront Airport, Louisiana
Half of years have their last spring frost by January 22, but 1 year in 10 still frosts after February 23.
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
- February 23
- 1 year in 5
- February 9
- 3 years in 10
- February 1
- 2 years in 5
- January 27
- Half of years (the median)
- January 22
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- December 13
- 1 year in 5
- December 23
- 3 years in 10
- December 29
- 2 years in 5
- January 1
- Half of years (the median)
- January 5
- Growing season
- about 348 days
- Hardiness zone nearby
- 9b
- Summer days
- a usual high of about 32 °C90 °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
- July 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 ~16 °C61 °F · low ~8 °C47 °F · rain ~134 mm5.3 in
- February
- high ~18 °C65 °F · low ~10 °C51 °F · rain ~104 mm4.1 in
- March
- high ~22 °C71 °F · low ~14 °C57 °F · rain ~118 mm4.6 in
- April
- high ~25 °C78 °F · low ~17 °C63 °F · rain ~149 mm5.9 in
- May
- high ~29 °C85 °F · low ~22 °C71 °F · rain ~126 mm4.9 in
- June
- high ~32 °C89 °F · low ~25 °C76 °F · rain ~153 mm6 in
- July
- high ~33 °C91 °F · low ~26 °C78 °F · rain ~160 mm6.3 in
- August
- high ~33 °C91 °F · low ~26 °C79 °F · rain ~164 mm6.5 in
- September
- high ~31 °C87 °F · low ~24 °C76 °F · rain ~118 mm4.6 in
- October
- high ~26 °C79 °F · low ~19 °C67 °F · rain ~92 mm3.6 in
- November
- high ~21 °C70 °F · low ~14 °C56 °F · rain ~92 mm3.6 in
- December
- high ~17 °C63 °F · low ~10 °C49 °F · rain ~118 mm4.6 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the New Orleans Lakefront Airport station (listed by NOAA as New Orleans Lakefront Ap, USW00053917), at 30.05, -90.03. 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
70122, 70124, 70126, 70127, 70128.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Carville 2 SW, LA, last frost by February 9
- New Roads 5 NE, LA, last frost by February 19
Other stations in Louisiana.
- Shreveport Sthrn Hills, LA, last frost by March 12
When do I plant? · Where the dates come from
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