Skip to content

USDA Hardiness Zone 6a

Frost Dates for 06068 — Salisbury, Connecticut

NOAA 1991–2020 normals from Falls Village, CT (550 ft), 5 miles southeast.

Updated

In Salisbury, the last spring frost (32°F) is around May 11 in half of years and has passed by May 27 in nine years out of ten. The first fall frost comes around October 4, as early as September 21 one year in ten, leaving a typical freeze-free season of 146 days (NOAA, Falls Village, CT).

Last spring frost
May 11

50% probability

First fall frost
October 4

50% probability

Growing season
146 days

freeze-free, 50%

Hardiness zone
6a

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

First snow
November 26

median, 1991–2020

Last snow
March 26

median, 1991–2020

Winters with snow
100%

20 of 20 observed

Snow per year
49.6"

NOAA normal

Frost risk by date in Salisbury

Half of springs at Falls Village, CT see their last 32°F night by May 11; only one in ten is past it by April 27, and one in ten still has one after May 27. Planting tender crops after May 18 leaves a 30% risk of a frost on them, after May 22 20%, and after May 27 10%. The 16 days between the even-odds date and the one-in-ten date is wider than at 82% of the 28 Connecticut stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 4 in half of years, as early as September 21 one year in ten, and holds off past October 18 one year in ten. A hard freeze of 28°F follows 11 days later, around October 15; in spring the one-in-ten date for 28°F is May 13, 14 days before the 32°F one. The freeze-free season lasts 146 days in a typical year, the shortest of the 28 Connecticut stations; it reaches 166 days one year in ten and falls short of 126 one year in ten. On average 156 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 12 days longer, to about May 23, and return around September 26. Severe cold of 16°F or below comes every winter, usually between November 22 and March 24.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMay 7May 13May 16May 20May 23May 26May 29Jun 1Jun 5
32°FApr 27Apr 30May 4May 8May 11May 14May 18May 22May 27
28°FApr 16Apr 21Apr 24Apr 27Apr 30May 2May 5May 8May 13
24°FApr 2Apr 6Apr 9Apr 13Apr 16Apr 19Apr 22Apr 26Apr 30
20°FMar 20Mar 25Mar 30Apr 1Apr 3Apr 5Apr 8Apr 12Apr 18
16°FMar 9Mar 14Mar 18Mar 21Mar 24Mar 28Mar 30Apr 1Apr 6
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FSep 11Sep 17Sep 20Sep 23Sep 26Sep 29Oct 1Oct 4Oct 7
32°FSep 21Sep 26Sep 30Oct 2Oct 4Oct 6Oct 9Oct 13Oct 18
28°FOct 2Oct 6Oct 10Oct 12Oct 15Oct 18Oct 21Oct 25Oct 31
24°FOct 12Oct 18Oct 22Oct 26Oct 29Nov 1Nov 4Nov 8Nov 14
20°FOct 26Oct 31Nov 3Nov 6Nov 10Nov 13Nov 16Nov 21Nov 27
16°FNov 7Nov 12Nov 16Nov 19Nov 22Nov 25Nov 29Dec 3Dec 7

Freeze probabilities 1991–2020 at Falls Village, CT, 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 06068 →Compare Salisbury with another place →

Weather by month in Salisbury

July is the warmest month at Falls Village, CT, averaging 85°F by day and 58°F at night; January is the coldest at 35°F and 14°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 78% of years.

Warmth for growing adds up to 2,576 growing degree days a year (base 50°F), fewer than at 75% of the 28 Connecticut stations. 31% of them (811) have built up by the end of June, and July adds the most, 662. Precipitation totals 47.0 inches a year, most in June (4.8") and least in February (2.6"); May to September bring 48% of it.

Monthly normals 1991–2020 at Falls Village, CT
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan35143.0100%291
Feb39152.6100%270
Mar47233.4100%268
Apr60333.4100%1462
May72443.978%3256
Jun80534.85%<1485
Jul85584.80%0662
Aug82574.40%0603
Sep76494.732%1375
Oct63384.799%9109
Nov51293.5100%2015
Dec40203.8100%282

Monthly normals 1991–2020 at Falls Village, CT (550 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, Copake, NY, 9 miles northwest of Salisbury, has a last frost 7 days earlier (May 4), a first frost 7 days later (October 11), a season 14 days longer.

Frost dates for 12567 (Pine Plains) →

When it snows in Salisbury, Connecticut

The first measurable snow (0.1 inch or more) in Salisbury usually arrives around November 26, and the last of the season around March 26. Those are the middle dates across the winters of 1991–2020 at Copake, NY, 9.5 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 46 days after the last snow.

Planting calendar for 06068

What to do and when, from the 50% frost dates for Salisbury, Connecticut
WhenWhat to do
March 2 – March 16Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
March 16 – March 30Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
April 13 – April 27Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
May 11 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 12Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by September 20Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 4 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 06068 is 5 miles from Falls Village, CT, which stands at 550 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 12546 (Millerton). The 2023 USDA Plant Hardiness Zone Map lists ZIP 06068 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 Connecticut →

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.

ZIP codes measured at the same station

Other zone 6a places in Connecticut