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Climate in Heathcote · NOAA 1991–2020 normals

Precipitation in Heathcote tops that of 74% of U.S. towns: 48 inches a year

Sunny July days climb to about 87°. Seasons differ by 64°, from the coldest nights to the warmest afternoons. Summer afternoons here are warmer than in 61% of U.S. towns. Radiators earn their keep from November to March, the months that average under 50°.

More snow than 61% of U.S. towns#67Snowiest  of 453 in NJ
Milder January nights than 56% of U.S. towns#280Mildest winters  of 468 in NJ
All NJ rankings →

A year in Heathcote at a glance

Each month’s typical high and low, and what it brings.

Jan41°23° 8" snow
Feb44°24° 9" snow
Mar52°31° 5" snow
Apr64°40° Last frost ~Apr 25
May73°50° 1 day 90°+
Jun82°59° 5 days 90°+
Jul87°65° 11 days 90°+Wettest
Aug85°63° 7 days 90°+
Sep78°56° 2 days 90°+
Oct66°44° First frost ~Oct 16
Nov now55°35°
Dec45°28° 5" snow

What stands out about Heathcote’s climate

Compared with towns across the U.S., with Heathcote’s place in New Jersey beside it.

A normal year

What a year in Heathcote feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
43° / 25°
7 days with 1"+ of snow
Spring
63° / 40°
Last frost around Apr 25
Summer
85° / 62°
26 days reach 90°
Fall
67° / 45°
First frost around Oct 16
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 173 frost-free days a year

In half of years the last 32° night comes by April 25 and the first by October 16. Frost and day counts come from NOAA’s station at Hightstown 2 W, NJ, 9 miles from the town’s center, at about the same height.

114
nights at or below 32° in a normal year
184th most of 468 in New Jersey
More freezing nights than 50% of U.S. towns
<1
nights at or below 0°
271st fewest of 468 in New Jersey
Fewer nights at or below 0° than 58% of U.S. towns
26
days that reach 90°
138th most of 468 in New Jersey
More 90° days than 58% of U.S. towns
<1
days that reach 100°
282nd most of 468 in New Jersey
More 100° days than 52% of U.S. towns
7aUSDA zone
Plant hardiness zone 7a

The 2023 USDA map puts Heathcote’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 4°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

26
JFMAMJJASOND

90° days by month

Average days at 90° or more

11
JFMAMJJASOND
Rain & snow

About 29 inches of snow a winter

Snow, measured at New Brunswick 3 Se, NJ, falls mostly in February. Precipitation (rain plus melted snow) adds up to 48 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 125 days a year.

48"
Rain + melted snow a year
222nd wettest of 468 in New Jersey
Wetter than 74% of U.S. towns
29"
Snow in a normal winter
67th snowiest of 453 in New Jersey
More snow than 61% of U.S. towns
27 days
With 1"+ of snow on the ground
51st most of 337 in New Jersey
More days with snow on the ground than 57% of U.S. towns

Rain + melted snow by month

Inches of water

5.1"
JFMAMJJASOND

Snowfall by month

Inches of snow

9"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Heathcote

85% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from November through April.

5,315 heating degree daysLess heating than 50% of U.S. towns
903 cooling degree daysLess cooling than 51% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Hightstown 2 W, NJ.

Living here

Living with Heathcote’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

173 frost-free days in zone 7a. The last frost comes by Apr 25 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 16.

Get outside

Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 2.1 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Heathcote from natural hazards, river flooding is the largest share (68%); heat waves, cold waves, winter storms and ice storms together are 11%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Heathcote and its neighbors

Every town next door is within a degree of Heathcote in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Montgomery Township: January low 23°, July high 87°Princeton: January low 23°, July high 86°Rocky Hill: January low 23°, July high 87°Ten Mile Run: January low 23°, July high 87°Franklin Park: January low 23°, July high 87°Hillsborough Township: January low 22°, July high 87°New Brunswick: January low 23°, July high 87°Griggstown: January low 23°, July high 87°East Franklin: January low 23°, July high 87°Weston: January low 22°, July high 87°Somerset: January low 23°, July high 87°Millstone: January low 23°, July high 87°Piscataway Township: January low 23°, July high 87°North Brunswick Township: January low 23°, July high 87°East Brunswick Township: January low 23°, July high 87°Plainsboro Township: January low 23°, July high 87°Deans: January low 23°, July high 87°Princeton Meadows: January low 23°, July high 87°Cranbury Township: January low 23°, July high 87°Dayton: January low 23°, July high 87°Kingston: January low 23°, July high 87°Kendall Park: January low 23°, July high 87°Franklin Township: January low 23°, July high 87°South Brunswick Township: January low 23°, July high 87°East Rocky Hill: January low 23°, July high 87°Monmouth Junction: January low 23°, July high 87°Heathcote: January low 23°, July high 87°HeathcoteKingstonKendall ParkFranklin TownshipSouth Brunswick TownshipEast Rocky HillMonmouth Junction
ColderMilder22° to 23°
Franklin Township22.5° about the same
Heathcote23.0°
Kingston23.0° about the same
Kendall Park23.0° about the same
South Brunswick Township23.0° about the same
East Rocky Hill23.0° about the same
Monmouth Junction23.0° about the same

Climates most like Heathcote’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Heathcote, NJ23°87°48"29"
Charleston, WV25°87°46"32"
Spring Ridge, MD24°87°45"33"
Alexandria, KY24°86°45"23"
Amelia, OH23°86°46"23"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in Heathcote averaged 2.2° warmer than the 1900s. The biggest change is in December (+3.8°).

+2.2°1991–2020 vs. 1901–2000

A bigger shift than in 96% of U.S. towns.

Winter+3.2°now 34°, was 31°
Spring+1.9°now 52°, was 50°
Summer+1.9°now 73°, was 72°
Fall+1.9°now 56°, was 54°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Heathcote compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Heathcote’s place among New Jersey’s.

Summer heat87° July high
Hotter July afternoons than 61% of U.S. towns121st hottest of 468 in New Jersey
Winter cold23° January low
Milder January nights than 56% of U.S. towns280th mildest of 468 in New Jersey
Precipitation48" a year
Wetter than 74% of U.S. towns222nd wettest of 468 in New Jersey
Snow29" a winter
More snow than 61% of U.S. towns67th snowiest of 453 in New Jersey
Hot days26 days at 90°+
More 90° days than 58% of U.S. towns138th most of 468 in New Jersey
Freezing nights114 a year
More freezing nights than 50% of U.S. towns184th most of 468 in New Jersey
Growing season173 frost-free days
A shorter frost-free season than 68% of U.S. towns36th shortest of 468 in New Jersey
Month by month

Heathcote weather by month

Highs, lows and precipitation from NOAA’s grid at Heathcote’s center; snow, wet days and snow on the ground from New Brunswick 3 Se, NJ. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January41°23°3.5"8.3"11924° – 39°
February44°24°2.8"9.3"101022° – 40°
March52°31°4.1"5.2"11536° – 50°
April64°40°3.7"0.6"12048° – 56°
May73°50°4.1"0.0"13057° – 67°
June82°59°4.4"0.0"11067° – 74°
July87°65°5.1"0.0"11071° – 80°
August85°63°4.4"0.0"10070° – 77°
September78°56°4.1"0.0"9065° – 72°
October66°44°4.1"0.2"10050° – 62°
November55°35°3.2"0.5"9040° – 50°
December45°28°4.3"4.9"10430° – 48°
Year64°43°47.7"29.0"12527
Year to year

How much a month can swing

A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 30° to 48°. September is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Heathcote’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Heathcote’s center.
  • Snow: New Brunswick 3 Se, NJ.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Hightstown 2 W, NJ, 9 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Heathcote’s climate

What is the weather like in Heathcote?

A typical July afternoon reaches 87°, a January night drops to 23°, and about 29 inches of snow falls in a normal winter. Milder January nights than 56% of U.S. towns; hotter July afternoons than 61% of U.S. towns.

How cold does it get in Heathcote in winter?

January nights average 23°. About 114 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 24°.

How much snow does Heathcote get?

About 29 inches in a normal winter at New Brunswick 3 Se, NJ, most of it in February, with snow on the ground about 27 days a year.

How hot does it get in Heathcote?

July, with a typical high of 87° and a low of 65°. About 26 days a year reach 90° (Hightstown 2 W, NJ).

When is the first and last frost in Heathcote?

In half of years the last spring frost (32°) comes by April 25 and the first fall frost by October 16, about 173 frost-free days, at Hightstown 2 W, NJ.

What growing zone is Heathcote in?

Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 4°.

What is the best time of year to visit Heathcote?

By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Heathcote getting warmer?

Yes: 1991–2020 averaged 2.2° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 96% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Heathcote.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.