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Climate in Franklin Center · NOAA 1991–2020 normals

Franklin Center has chilly winters and warm summers, with plenty of rain

A typical July afternoon reaches 87°, a January night drops to 23°, and about 21 inches of snow falls in a normal winter.

July high
87°
222nd hottest of 941 New Jersey towns
January low
23°
312th coldest of 941 New Jersey towns
Rain + melted snow
48"
247th wettest of 941 New Jersey towns
Snow a winter
21"
212th least snowy of 898 New Jersey towns
Frost-free days
193
Apr 15 to Oct 26
90° days
24
in a normal year

A year in Franklin Center at a glance

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

Jan40°23° 7" snow
Feb43°24° 7" snow
Mar51°31° 4" snow
Apr64°40° Nice outLast frost ~15
May73°50° Nice out
Jun82°59° Nice out4 days 90°+
Jul87°65° 10 days 90°+Wettest
Aug85°63° 6 days 90°+
Sep78°56° Nice out
Oct now66°44° Nice outFirst frost ~26
Nov55°35°
Dec45°28° 4" snow
A normal year

What a year in Franklin Center feels like

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

Winter
43° / 25°
6 days with 1"+ of snow
Spring
63° / 40°
Last frost around Apr 15
Summer
84° / 62°
24 days reach 90°
Fall
66° / 45°
First frost around Oct 26
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Rain & snow

21 inches of snow, 48 of rain and melt

July is the wettest month and February the driest. Rain or snow falls on about 121 days a year.

48"
Rain + melted snow a year
247th wettest of 941 New Jersey towns
More than 83% of U.S. towns
21"
Snow in a normal winter
212th least snowy of 898 New Jersey towns
Less than 56% of U.S. towns
121 days
With rain or snow
341st driest of 898 New Jersey towns
More than 62% of U.S. towns

Rain + melted snow by month

Inches of water

5.1"
JFMAMJJASOND

Snowfall by month

Inches of snow

6.8"
JFMAMJJASOND
Frost & heat

About 193 frost-free days a year

In half of years the last 32° night comes by April 15 and the first by October 26.

111
nights at or below 32° in a normal year
<1
nights below 0° in a normal year
24
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

26
JFMAMJJASOND

90° days by month

Average days at 90° or more

9.7
JFMAMJJASOND
Living here

Living with Franklin Center’s climate

What the numbers mean for a garden, a driveway, a furnace and a free afternoon.

The garden window

193 frost-free days. The last frost comes by Apr 15 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 26.

Snow season

About 21" a winter over 6 days with an inch or more, most in January.

Furnace season

Months averaging under 55° run from November through April. Heating is 83% of the year’s heating-and-cooling load.

Summer heat

About 24 days a year reach 90°, and July afternoons average 87°.

Get outside

The nicest months are April, May, June, September and October. 0.6 miles of trails are waiting.

Parks & trails →
Storms and extremes

Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.

Natural hazards →
Next door

Franklin Center and its neighbors

Bridgewater has the coldest January nights next door (22°) and Franklin the hottest July afternoons (87°). Tap a town to see its climate.

Montgomery: January low 23°, July high 87°East Rocky Hill: January low 23°, July high 87°Hillsborough: January low 22°, July high 87°New Brunswick: January low 23°, July high 87°South Brunswick: January low 23°, July high 87°Griggstown: January low 23°, July high 87°East Franklin: January low 23°, July high 87°Kingston: January low 23°, July high 87°Millstone: January low 23°, July high 87°Manville: January low 22°, July high 87°Somerville: January low 22°, July high 87°Bridgewater Center: January low 22°, July high 87°Bound Brook: January low 23°, July high 87°Martinsville: January low 22°, July high 86°Bedminster: January low 21°, July high 86°Bradley Gardens: January low 22°, July high 87°Branchburg: January low 22°, July high 86°Middlesex: January low 23°, July high 87°Warren: January low 22°, July high 86°Pluckemin: January low 21°, July high 86°Six Mile Run: January low 23°, July high 87°Blackwells Mills: January low 23°, July high 87°Clyde: January low 23°, July high 87°Voorhees: January low 23°, July high 87°South Plainfield: January low 23°, July high 87°Edison: January low 24°, July high 87°Dunellen: January low 22°, July high 87°Rutgers University-Livingston Campus: January low 23°, July high 87°Franklin: January low 23°, July high 87°Finderne: January low 22°, July high 87°Bridgewater: January low 22°, July high 86°Zarephath: January low 22°, July high 87°Weston: January low 22°, July high 87°Middlebush: January low 23°, July high 87°East Millstone: January low 23°, July high 87°Somerset: January low 23°, July high 87°Piscataway: January low 23°, July high 87°South Bound Brook: January low 23°, July high 87°Franklin Center: January low 23°, July high 87° Franklin CenterFranklinFinderneBridgewaterZarephathWestonMiddlebushEast MillstoneSomersetPiscatawaySouth Bound Brook
ColderMilder21° to 24°
Bridgewater21.6° −1.0°
Finderne22.1° −0.5°
Zarephath22.4° −0.2°
Weston22.4° −0.2°
Franklin22.5° −0.1°
East Millstone22.5° −0.1°
South Bound Brook22.5° −0.1°
Franklin Center22.6°
Middlebush22.6° same
Somerset22.6° same
Piscataway22.7° +0.1°

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 Franklin Center 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 98% of U.S. towns.

❄️ Winter+3.2°now 34°, was 31°
🌷 Spring+1.9°now 51°, was 49°
☀️ Summer+2.0°now 73°, was 71°
🍂 Fall+1.9°now 56°, was 54°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec
Compared with other towns

How Franklin Center compares

Against every U.S. town on TownTapestry, each counted once, with its place in New Jersey.

Summer heat87° July high
Hotter than 64% of U.S. towns222nd hottest of 941 New Jersey towns
Winter cold23° January low
Milder than 65% of U.S. towns312th coldest of 941 New Jersey towns
Precipitation48" a year
Wetter than 83% of U.S. towns247th wettest of 941 New Jersey towns
Snow21" a winter
Less snow than 56% of U.S. towns212th least snowy of 898 New Jersey towns
Growing season193 frost-free days
Longer than 67% of U.S. towns400th longest of 941 New Jersey towns
Snowiest, mildest, wettest and more in NJ →
Month by month

Franklin Center weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet days30-yr range
January40°23°3.5" 6.8"1023° – 39°
February43°24°2.9" 6.7"822° – 40°
March51°31°4.2" 3.6"1035° – 50°
April64°40°3.7" 0.2"1148° – 56°
May73°50°4.1" 01257° – 66°
June82°59°4.4" 01167° – 74°
July87°65°5.1" 01071° – 80°
August85°63°4.5" 01069° – 77°
September78°56°4.2" 0964° – 72°
October66°44°4.2" 0.1"1050° – 62°
November55°35°3.3" 0.1"940° – 50°
December45°28°4.3" 3.5"1029° – 48°
Year64°43°48.3"21.0"121
Heating & cooling

Heating and cooling a home in Franklin Center

83% of the work is heating, so the furnace matters far more than the air conditioner.

83%heating
5,101 heating degree daysLess heating than 64% of U.S. towns
1,037 cooling degree daysMore cooling than 62% 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. Source: NOAA station normals.

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 29° to 48°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal

Common questions about Franklin Center’s climate

What is the coldest month in Franklin Center?

January, with a typical high of 40° and a low of 23°.

What is the hottest month in Franklin Center?

July, with a typical high of 87° and a low of 65°. About 24 days a year reach 90°.

How much snow does Franklin Center get?

About 21 inches in a normal winter, most of it in January.

When is the first frost in Franklin Center?

In half of years the first 32° night comes by October 26, and the last spring frost by April 15.

What is the rainiest month in Franklin Center?

July, with 5.1 inches of rain and melted snow. The year totals 48 inches.

Neighbors talk weather

Gardens, snow, and the best days of the year in Franklin Center.

Town Square →
Weigh in
Is Franklin Center’s weather one of its best features?

Your answer becomes a post in Town Square.

Ask your neighbors

Temperatures and rainfall come from NOAA’s gridded climate normals for Franklin Center itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bound Brook 2w, NJ (2 mi, snow) and New Brunswick 3 Se, NJ (7 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.

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