USDA Hardiness Zone 9a
Frost Dates for 71429 — Florien, Louisiana
NOAA 1991–2020 normals from Hodges Gardens, LA (420 ft), 4 miles southeast.
Updated
In Florien, the last spring frost (32°F) is around March 3 in half of years and has passed by March 22 in nine years out of ten. The first fall frost comes around November 27, as early as November 7 one year in ten, leaving a typical freeze-free season of 267 days (NOAA, Hodges Gardens, LA).
- Last spring frost
- March 3
- First fall frost
- November 27
- Growing season
- 267 days
- Hardiness zone
- 9a
50% probability
50% probability
freeze-free, 50%
20 to 25°F (-6.7 to -3.9°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 6%
- Snow per year
- 0.1"
median, 1991–2020
median, 1991–2020
1 of 16 observed
NOAA normal
Frost risk by date in Florien
Half of springs at Hodges Gardens, LA see their last 32°F night by March 3; only one in ten is past it by February 9, and one in ten still has one after March 22. Planting tender crops after March 11 leaves a 30% risk of a frost on them, after March 15 20%, and after March 22 10%. The 19 days between the even-odds date and the one-in-ten date is narrower than at 78% of the 88 Louisiana stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 27 in half of years, as early as November 7 one year in ten, and holds off past December 20 one year in ten. A hard freeze of 28°F follows 15 days later, around December 12; in spring the one-in-ten date for 28°F is March 11, 11 days before the 32°F one. The freeze-free season lasts 267 days in a typical year, shorter than at 51% of the 88 Louisiana stations; it reaches 297 days one year in ten and falls short of 242 one year in ten. On average 25 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 13 days longer, to about March 16, and return around November 13. Nights of 24°F, cold enough to damage hardier plants, come in 84% of winters and 16°F in 10%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Feb 26 | Mar 4 | Mar 8 | Mar 13 | Mar 16 | Mar 20 | Mar 24 | Mar 28 | Apr 4 |
| 32°F | Feb 9 | Feb 18 | Feb 24 | Feb 28 | Mar 3 | Mar 7 | Mar 11 | Mar 15 | Mar 22 |
| 28°F99% of yrs | Jan 17 | Jan 26 | Feb 1 | Feb 9 | Feb 16 | Feb 23 | Feb 28 | Mar 4 | Mar 11 |
| 24°F84% of yrs | Jan 3 | Jan 11 | Jan 18 | Jan 25 | Jan 31 | Feb 5 | Feb 10 | Feb 22 | Mar 1 |
| 20°F44% of yrs | too rare for a date | ||||||||
| 16°F10% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 30 | Nov 2 | Nov 6 | Nov 10 | Nov 13 | Nov 17 | Nov 21 | Nov 27 | Dec 2 |
| 32°F | Nov 7 | Nov 12 | Nov 18 | Nov 22 | Nov 27 | Dec 1 | Dec 4 | Dec 10 | Dec 20 |
| 28°F99% of yrs | Nov 18 | Nov 27 | Dec 2 | Dec 7 | Dec 12 | Dec 20 | Dec 28 | Jan 2 | Jan 11 |
| 24°F84% of yrs | Dec 7 | Dec 17 | Dec 26 | Jan 1 | Jan 3 | Jan 8 | Jan 13 | Jan 19 | Feb 1 |
| 20°F44% of yrs | too rare for a date | ||||||||
| 16°F10% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Hodges Gardens, LA, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 71429 →Compare Florien with another place →
Weather by month in Florien
August is the warmest month at Hodges Gardens, LA, averaging 94°F by day and 72°F at night; January is the coldest at 58°F and 38°F. A freezing night is all but certain in every month from December to January (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 88% of years and March still brings one in 57% of years.
Warmth for growing adds up to 6,446 growing degree days a year (base 50°F), fewer than at 60% of the 88 Louisiana stations. 41% of them (2,668) have built up by the end of June, and August adds the most, 1,018. Precipitation totals 58.9 inches a year, most in January (6.0") and least in July (3.7"); May to September bring 37% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 58 | 38 | 6.0 | 98% | 10 | 99 |
| Feb | 63 | 41 | 4.8 | 88% | 5 | 139 |
| Mar | 70 | 48 | 5.3 | 57% | 2 | 305 |
| Apr | 77 | 55 | 5.1 | 0% | 0 | 490 |
| May | 84 | 63 | 4.6 | 0% | 0 | 736 |
| Jun | 90 | 70 | 4.5 | 0% | 0 | 900 |
| Jul | 93 | 73 | 3.7 | 0% | 0 | 1017 |
| Aug | 94 | 72 | 4.4 | 0% | 0 | 1018 |
| Sep | 88 | 67 | 4.4 | 0% | 0 | 825 |
| Oct | 79 | 56 | 4.7 | 2% | 0 | 546 |
| Nov | 68 | 47 | 5.8 | 58% | 2 | 250 |
| Dec | 60 | 41 | 5.6 | 92% | 7 | 123 |
Monthly normals 1991–2020 at Hodges Gardens, LA (420 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Many, LA, 13 miles north of Florien and 165 feet lower, has a last frost 17 days later (March 20), a first frost 18 days earlier (November 9), a season 31 days shorter.
When it snows in Florien, Louisiana
Measurable snow is rare here: only 1 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Hodges Gardens, LA, 3.5 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 71429
| When | What to do |
|---|---|
| December 23 – January 6 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 6 – January 20 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 3 – February 17 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 3 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by September 4 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by November 13 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 27 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 71429 is 4 miles from Hodges Gardens, LA, which stands at 420 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 71429 in zone 9a, the band where the coldest night of the year averaged 20 to 25°F (-6.7 to -3.9°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across Louisiana →
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.