Highland Park, NJ climate
Highland Park has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 87°, a January night drops to 23°, and about 29 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Highland Park feels like
Winter
Spring
Summer
Fall
Highland Park 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 | 41° | 23° | 3.5" | 8.3" | 11 | 9 | 24° – 39° |
| February | 43° | 25° | 2.9" | 9.3" | 10 | 10 | 23° – 40° |
| March | 51° | 31° | 4.2" | 5.2" | 11 | 5 | 36° – 50° |
| April | 63° | 41° | 3.7" | 0.6" | 12 | 0 | 48° – 57° |
| May | 73° | 50° | 4.1" | 0 | 13 | 0 | 57° – 67° |
| June | 82° | 60° | 4.4" | 0 | 11 | 0 | 67° – 74° |
| July | 87° | 65° | 5.0" | 0 | 11 | 0 | 71° – 80° |
| August | 85° | 63° | 4.5" | 0 | 10 | 0 | 69° – 78° |
| September | 78° | 57° | 4.1" | 0 | 9 | 0 | 65° – 72° |
| October | 66° | 45° | 4.2" | 0.2" | 10 | 0 | 51° – 62° |
| November | 55° | 36° | 3.3" | 0.5" | 9 | 0 | 40° – 50° |
| December | 45° | 28° | 4.3" | 4.9" | 10 | 4 | 30° – 48° |
| Year | 64° | 44° | 48.1" | 29.0" | 125 | 27 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Highland Park
Highland Park gets 48 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 125 days a year. Snow covers the ground about 27 days of the year.
About 193 frost-free days a year
In half of years the last 32° night comes by April 15 and the first one by October 26. That leaves about 193 frost-free days for gardens, longer than 67% of U.S. towns.
Heating and cooling a home in Highland Park
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Highland Park, 83% of that work is heating and 17% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Highland Park and its neighbors
Highland Park borders 2 towns with climate data. January nights across them vary by 0.9°. New Brunswick has both the coldest January nights (23°) and the hottest July afternoons (87°). Highland Park’s January low is 23° and its July high 87°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Highland Park compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Highland Park averaged 2.2° warmer than the 1900s. The biggest change is in December (+3.7°). The shift is larger than in 98% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Highland Park’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 30° to 48°. June is the most reliable, staying within 7°.
Common questions about Highland Park’s climate
What is the coldest month in Highland Park?
January, with a typical high of 41° and a low of 23°.
What is the hottest month in Highland Park?
July, with a typical high of 87° and a low of 65°. About 24 days a year reach 90°.
How much snow does Highland Park get?
About 29 inches in a normal winter, most of it in February.
When is the first frost in Highland Park?
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 Highland Park?
July, with 5.0 inches of rain and melted snow. The year totals 48 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Highland Park itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at New Brunswick 3 Se, NJ (2 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.