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Warren CR 623 nb in Brass Castle, NJ (2), Dec. 2025Photo: Mr. Matté (if there is an issue with this image, contact me using this image's Commons talk page, my Commons user talk page, or my English Wikipedia user talk page; I'll know about it a lot faster) · CC BY-SA 4.0
Climate in Brass Castle · NOAA 1991–2020 normals

Wet weather: 49 inches of rain and melted snow a year in Brass Castle, more than in 82% of U.S. towns

In July the day’s top temperature is typically 83°. Summers stay cool: July afternoons here are cooler than in 69% of U.S. towns. Warming shows here too: 2.3° more than in 1901–2000, led by December. The heating season runs November to April: each of those months averages under 50°.

Colder January nights than 66% of U.S. towns#28 coldest of 468 in NJ
More snow than 52% of U.S. towns#280Snowiest  of 453 in NJ
All NJ rankings →

A year in Brass Castle at a glance

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

Jan36°19° 10" snow
Feb40°21° 5" snow
Mar48°28° 4" snow
Apr61°37° Last frost ~Apr 30
May71°47° 1 day 90°+
Jun79°56° 2 days 90°+
Jul83°61° 7 days 90°+
Aug81°59° 4 days 90°+Wettest
Sep75°53° 1 day 90°+
Oct63°42° First frost ~Oct 18
Nov now52°32°
Dec41°24° 4" snow

What stands out about Brass Castle’s climate

Compared with towns across the U.S., with Brass Castle’s place in New Jersey beside it.

A normal year

What a year in Brass Castle feels like

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

Winter
39° / 21°
7 days with 1"+ of snow
Spring
60° / 37°
Last frost around Apr 30
Summer
81° / 59°
14 days reach 90°
Fall
63° / 42°
First frost around Oct 18
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 168 frost-free days a year

In half of years the last 32° night comes by April 30 and the first by October 18. Frost and day counts come from NOAA’s station at Belvidere Brg, NJ, 5 miles from the town’s center, 190 ft lower.

135
nights at or below 32° in a normal year
38th most of 468 in New Jersey
More freezing nights than 73% of U.S. towns
2
nights at or below 0°
77th most of 468 in New Jersey
More nights at or below 0° than 50% of U.S. towns
14
days that reach 90°
66th fewest of 468 in New Jersey
Fewer 90° days than 63% of U.S. towns
<1
days that reach 100°
41st fewest of 468 in New Jersey
Fewer 100° days than 68% of U.S. towns
6bUSDA zone
Plant hardiness zone 6b

The 2023 USDA map puts Brass Castle’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 0°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

28
JFMAMJJASOND

90° days by month

Average days at 90° or more

6.5
JFMAMJJASOND
Rain & snow

About 23 inches of snow a winter

Snow, measured at Belvidere Brg, NJ, falls mostly in January. Precipitation (rain plus melted snow) adds up to 49 inches a year; August is the wettest month and February the driest. Rain or snow falls on about 131 days a year.

49"
Rain + melted snow a year
48th wettest of 468 in New Jersey
Wetter than 82% of U.S. towns
23"
Snow in a normal winter
280th snowiest of 453 in New Jersey
More snow than 52% of U.S. towns

Rain + melted snow by month

Inches of water

4.9"
JFMAMJJASOND

Snowfall by month

Inches of snow

10"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Brass Castle

90% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.

6,050 heating degree daysMore heating than 68% of U.S. towns
650 cooling degree daysLess cooling than 73% 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. NOAA normals at Belvidere Brg, NJ.

Living here

Living with Brass Castle’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

168 frost-free days in zone 6b. The last frost comes by Apr 30 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 18.

Get outside

Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 4.4 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Brass Castle from natural hazards, river flooding is the largest share (63%); heat waves, cold waves, winter storms and ice storms together are 17%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door & far away

Brass Castle and similar climates

TownRatings has no climate map of the towns around Brass Castle yet.

Climates most like Brass Castle’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.

TownJan. lowJuly highPrecip.Snow
Brass Castle, NJ19°83°49"23"
Berkley, MA20°83°50"26"
Norwich, CT19°83°48"28"
Connellsville, PA21°84°46"24"
New Castle, IN19°84°44"25"

Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.

Then and now

Warmer than it used to be

The last 30 years in Brass Castle averaged 2.3° warmer than the 1900s. The biggest change is in December (+4.0°).

+2.3°1991–2020 vs. 1901–2000

A bigger shift than in 97% of U.S. towns.

Winter+3.4°now 30°, was 27°
Spring+1.9°now 49°, was 47°
Summer+1.8°now 70°, was 68°
Fall+2.0°now 53°, was 51°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Brass Castle compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Brass Castle’s place among New Jersey’s.

Summer heat83° July high
Cooler July afternoons than 69% of U.S. towns22nd coolest of 468 in New Jersey
Winter cold19° January low
Colder January nights than 66% of U.S. towns28th coldest of 468 in New Jersey
Precipitation49" a year
Wetter than 82% of U.S. towns48th wettest of 468 in New Jersey
Snow23" a winter
More snow than 52% of U.S. towns280th snowiest of 453 in New Jersey
Hot days14 days at 90°+
Fewer 90° days than 63% of U.S. towns66th fewest of 468 in New Jersey
Freezing nights135 a year
More freezing nights than 73% of U.S. towns38th most of 468 in New Jersey
Growing season168 frost-free days
A shorter frost-free season than 74% of U.S. towns7th shortest of 468 in New Jersey
Month by month

Brass Castle weather by month

Highs, lows and precipitation from NOAA’s grid at Brass Castle’s center; snow, wet days and snow on the ground from Belvidere Brg, NJ. 1991–2020 normals.

MonthHighLowRain + meltSnowWet days30-yr range
January36°19°3.6"9.9"1118° – 35°
February40°21°2.7"5.2"918° – 36°
March48°28°3.8"3.5"1132° – 48°
April61°37°3.9"0.3"1145° – 54°
May71°47°4.1"0.0"1454° – 64°
June79°56°4.7"0.0"1263° – 71°
July83°61°4.9"0.0"1167° – 76°
August81°59°4.9"0.0"1166° – 74°
September75°53°4.6"0.0"961° – 68°
October63°42°4.6"0.0"1047° – 60°
November52°32°3.5"0.4"1037° – 47°
December41°24°4.3"4.0"1225° – 43°
Year61°40°49.4"23.3"131
Year to year

How much a month can swing

A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 18° to 36°. September is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Brass Castle’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 Brass Castle’s center.
  • Snow: Belvidere Brg, NJ.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Belvidere Brg, NJ, 5 miles from the town’s center, 190 ft lower; 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 Brass Castle’s climate

What is the weather like in Brass Castle?

A typical July afternoon reaches 83°, a January night drops to 19°, and about 23 inches of snow falls in a normal winter. Colder January nights than 66% of U.S. towns; cooler July afternoons than 69% of U.S. towns.

How cold does it get in Brass Castle in winter?

January nights average 19°. About 135 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 18°.

How much snow does Brass Castle get?

About 23 inches in a normal winter at Belvidere Brg, NJ, most of it in January.

How hot does it get in Brass Castle?

July, with a typical high of 83° and a low of 61°. About 14 days a year reach 90° (Belvidere Brg, NJ).

When is the first and last frost in Brass Castle?

In half of years the last spring frost (32°) comes by April 30 and the first fall frost by October 18, about 168 frost-free days, at Belvidere Brg, NJ.

What growing zone is Brass Castle in?

Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 0°.

What is the best time of year to visit Brass Castle?

By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Brass Castle getting warmer?

Yes: 1991–2020 averaged 2.3° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 97% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Brass Castle.

Town Square →
Ask your neighbors

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.