Pomona has chilly winters and warm summers
A typical July afternoon reaches 86°, a January night drops to 25°, and about 17 inches of snow falls in a normal winter.
A year in Pomona at a glance
Each month’s typical high and low, and what it brings.
What stands out about Pomona’s climate
Read from where Pomona sits among New Jersey’s towns. The page puts what stands out first.
17 inches of snow, 47 of rain and melt
August is the wettest month and February the driest. Rain or snow falls on about 120 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
What a year in Pomona feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 190 frost-free days a year
In half of years the last 32° night comes by April 18 and the first by October 29.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with Pomona’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
190 frost-free days. The last frost comes by Apr 18 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 29.
About 17" a winter over 5 days with an inch or more, most in February.
Months averaging under 55° run from November through April. Heating is 81% of the year’s heating-and-cooling load.
About 23 days a year reach 90°, and July afternoons average 86°.
The nicest months are April, May, June, August, September and October. 4.6 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 →Pomona and its neighbors
Egg Harbor has the coldest January nights next door (26°) and Egg Harbor 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 Pomona averaged 2.2° warmer than the 1900s. The biggest change is in December (+3.5°).
A bigger shift than in 98% of U.S. towns.
Change by month
How Pomona compares
Against every U.S. town on TownTapestry, each counted once, with its place in New Jersey.
Pomona 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° | 25° | 3.5" | 5.7" | 11 | 4 | 27° – 41° |
| February | 45° | 26° | 3.2" | 5.9" | 10 | 4 | 25° – 43° |
| March | 52° | 33° | 4.6" | 2.2" | 11 | 1 | 37° – 51° |
| April | 63° | 41° | 3.5" | 0.3" | 11 | 0 | 49° – 57° |
| May | 72° | 51° | 3.3" | 0 | 11 | 0 | 56° – 66° |
| June | 81° | 61° | 3.8" | 0 | 10 | 0 | 67° – 75° |
| July | 86° | 67° | 4.6" | 0 | 10 | 0 | 72° – 80° |
| August | 84° | 65° | 4.7" | 0 | 9 | 0 | 70° – 79° |
| September | 78° | 58° | 3.8" | 0 | 9 | 0 | 65° – 73° |
| October | 67° | 47° | 4.1" | 0 | 9 | 0 | 52° – 63° |
| November | 57° | 37° | 3.4" | 0.1" | 9 | 0 | 41° – 51° |
| December | 48° | 30° | 4.5" | 3.2" | 11 | 1 | 30° – 51° |
| Year | 65° | 45° | 46.9" | 17.4" | 120 | 10 |
Heating and cooling a home in Pomona
81% of the work is heating, so the furnace matters far more than the air conditioner.
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 30° to 51°. July is the most reliable, staying within 8°.
Common questions about Pomona’s climate
What is the coldest month in Pomona?
January, with a typical high of 43° and a low of 25°.
What is the hottest month in Pomona?
July, with a typical high of 86° and a low of 67°. About 23 days a year reach 90°.
How much snow does Pomona get?
About 17 inches in a normal winter, most of it in February.
When is the first frost in Pomona?
In half of years the first 32° night comes by October 29, and the last spring frost by April 18.
What is the rainiest month in Pomona?
August, with 4.7 inches of rain and melted snow. The year totals 47 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Pomona.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Pomona itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Atlantic City Intl Airport, NJ (2 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.