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USDA Hardiness Zone 6a

Frost Dates for 47834 — Brazil, Indiana

NOAA 1991–2020 normals from Terre Haute Caa Airport, IN (575 ft), 11 miles southwest.

Updated

In Brazil, the last spring frost (32°F) is around April 14 in half of years and has passed by May 2 in nine years out of ten. The first fall frost comes around October 24, as early as October 7 one year in ten, leaving a typical freeze-free season of 192 days (NOAA, Terre Haute Caa Airport, IN).

Last spring frost
April 14

50% probability

First fall frost
October 24

50% probability

Growing season
192 days

freeze-free, 50%

Hardiness zone
6a

-10 to -5°F (-23.3 to -20.6°C) coldest night

First snow
December 7

median, 1991–2020

Last snow
March 6

median, 1991–2020

Winters with snow
100%

15 of 15 observed

Snow per year
19.9"

NOAA normal

Frost risk by date in Brazil

Half of springs at Terre Haute Caa Airport, IN see their last 32°F night by April 14; only one in ten is past it by March 31, and one in ten still has one after May 2. Planting tender crops after April 21 leaves a 30% risk of a frost on them, after April 25 20%, and after May 2 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 84% of the 125 Indiana stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 24 in half of years, as early as October 7 one year in ten, and holds off past November 6 one year in ten. A hard freeze of 28°F follows 11 days later, around November 4; in spring the one-in-ten date for 28°F is April 18, 14 days before the 32°F one. The freeze-free season lasts 192 days in a typical year, longer than at 74% of the 125 Indiana stations; it reaches 212 days one year in ten and falls short of 168 one year in ten. On average 111 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 11 days longer, to about April 25, and return around October 12. Severe cold of 16°F or below comes every winter, usually between December 6 and March 2.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FApr 11Apr 16Apr 19Apr 23Apr 25Apr 29May 2May 7May 14
32°FMar 31Apr 4Apr 7Apr 11Apr 14Apr 17Apr 21Apr 25May 2
28°FMar 16Mar 23Mar 28Mar 31Apr 2Apr 5Apr 7Apr 12Apr 18
24°FMar 4Mar 10Mar 15Mar 19Mar 22Mar 26Mar 30Apr 2Apr 6
20°FFeb 22Feb 28Mar 4Mar 8Mar 12Mar 16Mar 19Mar 23Mar 30
16°FFeb 11Feb 18Feb 24Feb 28Mar 2Mar 6Mar 9Mar 14Mar 20
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FSep 25Oct 1Oct 5Oct 9Oct 12Oct 14Oct 18Oct 21Oct 26
32°FOct 7Oct 15Oct 20Oct 22Oct 24Oct 27Oct 29Nov 1Nov 6
28°FOct 23Oct 28Oct 31Nov 2Nov 4Nov 7Nov 10Nov 14Nov 20
24°FNov 3Nov 6Nov 9Nov 12Nov 15Nov 19Nov 22Nov 28Dec 4
20°FNov 9Nov 15Nov 19Nov 23Nov 26Dec 1Dec 4Dec 9Dec 17
16°FNov 17Nov 24Nov 28Dec 2Dec 6Dec 10Dec 16Dec 20Dec 25

Freeze probabilities 1991–2020 at Terre Haute Caa Airport, IN, 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 47834 →Compare Brazil with another place →

Compared with the next station

The nearest other station, Terre Haute Hulman Regional Airport, IN, 11 miles southwest of Brazil, has a last frost 2 days later (April 16), a first frost 6 days earlier (October 18), a season 9 days shorter.

Frost dates for 47803 (Terre Haute) →

When it snows in Brazil, Indiana

The first measurable snow (0.1 inch or more) in Brazil usually arrives around December 7, and the last of the season around March 6. Those are the middle dates across the winters of 1991–2020 at Reelsville 4 SW, IN, 6.8 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 39 days after the last snow.

Planting calendar for 47834

What to do and when, from the 50% frost dates for Brazil, Indiana
WhenWhat to do
February 3 – February 17Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 17 – March 3Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 17 – March 31Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 14 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 1Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 10Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 24 onwardPlant 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 47834 is 11 miles from Terre Haute Caa Airport, IN, which stands at 575 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 47834 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Indiana →

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.

Other zone 6a places in Indiana