Diamond Beach has mild winters and warm summers
A typical July afternoon reaches 85°, a January night drops to 28°, and about 15 inches of snow falls in a normal winter.
A year in Diamond Beach at a glance
Each month’s typical high and low, and what it brings.
What stands out about Diamond Beach’s climate
Read from where Diamond Beach sits among New Jersey’s towns. The page puts what stands out first.
What a year in Diamond Beach feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Living with Diamond Beach’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
222 frost-free days. The last frost comes by Apr 1 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 9.
About 15" a winter over 4 days with an inch or more, most in February. Snow covers the ground about 10 days a year.
Months averaging under 55° run from November through April. Heating is 79% of the year’s heating-and-cooling load.
About 15 days a year reach 90°, and July afternoons average 85°.
The nicest months are May, June, August, September and October. 0.1 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →15 inches of snow, 46 of rain and melt
August is the wettest month and February the driest. Rain or snow falls on about 124 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
About 222 frost-free days a year
In half of years the last 32° night comes by April 1 and the first by November 9.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Diamond Beach and its neighbors
Lower has the coldest January nights next door (28°) and Lower the hottest July afternoons (85°). Tap a town to see its climate.
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 Diamond Beach averaged 2.1° warmer than the 1900s. The biggest change is in December (+3.0°).
A bigger shift than in 95% of U.S. towns.
Change by month
How Diamond Beach compares
Against every U.S. town on TownTapestry, each counted once, with its place in New Jersey.
Diamond Beach weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 43° | 28° | 3.3" | 4.5" | 11 | 4 | 29° – 42° |
| February | 45° | 29° | 3.1" | 5.7" | 11 | 4 | 26° – 44° |
| March | 52° | 35° | 4.2" | 2.5" | 12 | 1 | 39° – 51° |
| April | 62° | 44° | 3.4" | 0.1" | 11 | 0 | 50° – 58° |
| May | 71° | 53° | 3.4" | 0 | 11 | 0 | 57° – 67° |
| June | 80° | 63° | 3.6" | 0 | 10 | 0 | 67° – 75° |
| July | 85° | 69° | 4.2" | 0 | 10 | 0 | 72° – 80° |
| August | 83° | 67° | 4.6" | 0 | 9 | 0 | 71° – 79° |
| September | 78° | 62° | 4.0" | 0 | 9 | 0 | 66° – 74° |
| October | 67° | 50° | 4.1" | 0 | 10 | 0 | 54° – 65° |
| November | 57° | 40° | 3.4" | 0 | 9 | 0 | 43° – 53° |
| December | 48° | 33° | 4.2" | 2.0" | 11 | 2 | 33° – 51° |
| Year | 64° | 48° | 45.7" | 14.8" | 124 | 10 |
Heating and cooling a home in Diamond Beach
79% of the work is heating.
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.
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 33° to 51°. September is the most reliable, staying within 7°.
Common questions about Diamond Beach’s climate
What is the coldest month in Diamond Beach?
January, with a typical high of 43° and a low of 28°.
What is the hottest month in Diamond Beach?
July, with a typical high of 85° and a low of 69°. About 15 days a year reach 90°.
How much snow does Diamond Beach get?
About 15 inches in a normal winter, most of it in February.
When is the first frost in Diamond Beach?
In half of years the first 32° night comes by November 9, and the last spring frost by April 1.
What is the rainiest month in Diamond Beach?
August, with 4.6 inches of rain and melted snow. The year totals 46 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Diamond Beach.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Diamond Beach itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cape May 2 Nw, NJ (4 mi) away. 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.