Frost dates for Carville 2 Sw, Louisiana
Half of years have their last spring frost by February 9 — but 1 year in 10 still frosts after March 10.
Every other site gives you one date. A frost date is not a date: it is a percentile from 30 years of records at a nearby weather station, and planting to the median means losing the crop in half of years. Both numbers are below, so you can choose the risk yourself.
The odds
Last spring frost
- Frost this late in 1 year in 10
- March 10
- 1 year in 5
- March 1
- 3 years in 10
- February 23
- 2 years in 5
- February 15
- Half of years (the median)
- February 9
First fall freeze
- Freeze this early in 1 year in 10
- November 16
- 1 year in 5
- November 26
- 3 years in 10
- December 1
- 2 years in 5
- December 6
- Half of years (the median)
- December 13
- Growing season
- about 308 days
- Hardiness zone nearby
- 9a
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, station Carville 2 Sw (USC00161565), at 30.20, -91.13. These are that station's own records, unshifted. The further your garden is from it, the less exactly they describe your ground — the planner resolves the nearest station to your own ZIP and lowers its confidence with distance, rather than presenting one number as if it were measured in your yard.
Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a hundred metres away does not. No table can know that about your garden. Your own logged frosts eventually can.
ZIP codes nearest this station
70341, 70346, 70391, 70393, 70710, 70719, 70721, 70725, 70726, 70733, 70734, 70737, 70740, 70764, 70769, 70776, 70778, 70780, 70788, 70801, 70802, 70803, 70805, 70806, 70808, 70809, 70810, 70812, 70814, 70815, 70816, 70817, 70819, 70820, 70836.
What can I plant here, and when? →
Nearby stations
The nearest stations, and how their last-frost dates compare — the frost gradient across your area, which no single station shows.
- New Roads 5 Ne, LA — last frost by February 19
- New Orleans Lakefront Ap, LA — last frost by January 22
- Jackson Hawkins Fld, MS — last frost by March 6
- Mobile, AL — last frost by March 3
- Shreveport Sthrn Hills, LA — last frost by March 12
- Houston-Port, TX — last frost by February 2