In Marlboro, July heat, January chill and rainfall all sit near the middle of U.S. towns
On a normal July day the thermometer tops out near 87°. Winter and summer sit 61° apart. Winters are mild: January nights here are milder than in 65% of U.S. towns. The heating season runs November to March: each of those months averages under 50°.
A year in Marlboro at a glance
Each month’s typical high and low, and what it brings.
What stands out about Marlboro’s climate
Compared with towns across the U.S., with Marlboro’s place in New Jersey beside it.
What a year in Marlboro feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 205 frost-free days a year
In half of years the last 32° night comes by April 10 and the first by November 1. Frost and day counts come from NOAA’s station at Seabrook Farms, NJ, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Marlboro’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 7°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 12 inches of snow a winter
Snow, measured at Seabrook Farms, NJ, is heaviest from January through February, about 4 inches a month. Precipitation (rain plus melted snow) adds up to 46 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 117 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Marlboro
81% of the work is heating. Months averaging under 55° run from November through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Seabrook Farms, NJ.
Living with Marlboro’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
205 frost-free days in zone 7b. The last frost comes by Apr 10 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 1.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Marlboro from natural hazards, hurricanes are the largest share (25%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Marlboro and its neighbors
Every town next door is within a degree of Marlboro in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Marlboro’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.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Marlboro, NJ | 26° | 87° | 46" | 12" |
| Buena Vista, VA | 26° | 87° | 45" | 11" |
| Huntington, WV | 25° | 87° | 46" | 10" |
| Bristol, TN | 27° | 86° | 46" | 9.2" |
| Woodfin, NC | 27° | 85° | 46" | 12" |
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.
Warmer than it used to be
The last 30 years in Marlboro averaged 2.0° warmer than the 1900s. The biggest change is in December (+3.4°).
A bigger shift than in 89% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Marlboro compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Marlboro’s place among New Jersey’s.
Marlboro weather by month
Highs, lows and precipitation from NOAA’s grid at Marlboro’s center; snow, wet days and snow on the ground from Seabrook Farms, NJ. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 42° | 26° | 3.1" | 3.9" | 10 | 5 | 26° – 41° |
| February | 45° | 27° | 2.8" | 3.6" | 10 | 6 | 25° – 43° |
| March | 53° | 33° | 4.3" | 1.8" | 11 | 2 | 38° – 52° |
| April | 64° | 43° | 3.5" | 0.2" | 11 | 0 | 50° – 58° |
| May | 73° | 53° | 3.4" | 0.0" | 11 | 0 | 58° – 69° |
| June | 82° | 62° | 4.4" | 0.0" | 10 | 0 | 68° – 77° |
| July | 87° | 67° | 4.7" | 0.0" | 10 | 0 | 72° – 80° |
| August | 85° | 65° | 4.6" | 0.0" | 9 | 0 | 71° – 78° |
| September | 78° | 59° | 4.1" | 0.0" | 8 | 0 | 65° – 72° |
| October | 67° | 47° | 3.8" | 0.0" | 9 | 0 | 52° – 64° |
| November | 56° | 37° | 3.2" | 0.1" | 9 | 0 | 41° – 51° |
| December | 47° | 30° | 4.0" | 2.2" | 10 | 2 | 30° – 50° |
| Year | 65° | 46° | 45.8" | 11.8" | 117 | 15 |
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 50°. September is the most reliable, staying within 7°.
Where Marlboro’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 Marlboro’s center.
- Snow: Seabrook Farms, NJ.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Seabrook Farms, NJ, 6 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 Marlboro’s climate
What is the weather like in Marlboro?
A typical July afternoon reaches 87°, a January night drops to 26°, and about 12 inches of snow falls in a normal winter. Milder January nights than 65% of U.S. towns; hotter July afternoons than 59% of U.S. towns.
How cold does it get in Marlboro in winter?
January nights average 26°. About 87 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 26°.
How much snow does Marlboro get?
About 12 inches in a normal winter at Seabrook Farms, NJ, heaviest from January through February, about 4 inches a month, with snow on the ground about 15 days a year.
How hot does it get in Marlboro?
July, with a typical high of 87° and a low of 67°. About 25 days a year reach 90° (Seabrook Farms, NJ).
When is the first and last frost in Marlboro?
In half of years the last spring frost (32°) comes by April 10 and the first fall frost by November 1, about 205 frost-free days, at Seabrook Farms, NJ.
What growing zone is Marlboro in?
Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 7°.
What is the best time of year to visit Marlboro?
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 Marlboro getting warmer?
Yes: 1991–2020 averaged 2.0° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 89% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Marlboro.
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.