PlainClimate
NOAA 1991–2020 normals 52°F annual avg Public-domain federal data

Boonton, NJ Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →

52°F
Avg annual temp
68/100
Comfort score
49.2"
Annual precip
189d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Boonton

Boonton, New Jersey averages 52°F a year and scores 68/100 on the comfort index - good, milder than 58% of U.S. cities.

52°F
average temperature, NOAA 1991-2020 normal
68/100
comfort score, milder than 58% of U.S. cities
49.2"
precipitation, annual total
189 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

52°F (11°C)

Avg High

62°F

Avg Low

42°F

Annual Precip

49.2"

Comfort Score

68/100

Good

Climate Comfort Score

68/100

Good

Avg Annual Temperature

52°F

30-year mean (NOAA NCEI)

Annual Precipitation

49.2"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Boonton) 68.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Boonton area.

How Boonton compares to every U.S. city

Boonton's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

68 Top 42% higher than 58% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). This entry sits in this band. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Boonton

Methodology

The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Boonton, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 38°F (3°C) 21°F (-6°C) 29°F (-2°C)
February 40°F (4°C) 22°F (-6°C) 31°F (-1°C)
March 48°F (9°C) 29°F (-2°C) 39°F (4°C)
April 61°F (16°C) 39°F (4°C) 50°F (10°C)
May 71°F (22°C) 49°F (10°C) 60°F (16°C)
June 81°F (27°C) 59°F (15°C) 70°F (21°C)
July 85°F (30°C) 64°F (18°C) 75°F (24°C)
August 84°F (29°C) 62°F (17°C) 73°F (23°C)
September 77°F (25°C) 54°F (12°C) 66°F (19°C)
October 64°F (18°C) 42°F (6°C) 53°F (12°C)
November 53°F (11°C) 33°F (1°C) 43°F (6°C)
December 42°F (6°C) 26°F (-3°C) 34°F (1°C)

Monthly Precipitation

Average monthly rainfall

January 3.7"

10.5 days with precipitation

February 2.8"

10.0 days with precipitation

March 4.2"

11.0 days with precipitation

April 3.6"

12.2 days with precipitation

May 4.0"

13.4 days with precipitation

June 4.9"

12.1 days with precipitation

July 4.7"

10.9 days with precipitation

August 3.7"

10.2 days with precipitation

September 4.7"

9.2 days with precipitation

October 4.5"

11.2 days with precipitation

November 4.1"

8.1 days with precipitation

December 4.4"

12.1 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 23

50% probability date

Last Spring Freeze

April 17

50% probability date

Growing Season

189 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

5,631

Higher = more heating needed

Cooling Degree Days

865

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Boonton's climate means for you

Boonton runs 52°F a year - peaking in July, coldest in January.

  • Gardeners get about 189 frost-free days, with the last spring freeze near April 17 - plan the planting calendar around it, not the regional average.
  • Energy bills track 5,631 heating and 865 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Boonton, NJ

The NOAA 1991–2020 climate normals describe Boonton, New Jersey as a location with an annual average temperature of 52°F, ranging from a mean daily high of 62°F to a mean daily low of 42°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00280907, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Anyone planning to live, garden, or travel in Boonton should weigh precipitation alongside temperature: the annual average runs 49.2 inches, predominantly as rainfall. The frost-free season averages 189 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 17 and the first fall freeze near October 23. And on the energy front, 5,631 heating degree days and 865 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Boonton scores 68/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Boonton, NJ?
The average annual temperature in Boonton, New Jersey is 52°F. The warmest month averages 85°F (30°C) and the coldest averages 21°F (-6°C).
How much rain does Boonton get?
Boonton receives 49.2 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Boonton?
Boonton has a climate comfort score of 68/100 (Good), milder than 58% of U.S. cities in the PlainClimate database.
When is the growing season in Boonton?
Boonton has approximately 189 frost-free days per year, with the last spring freeze around April 17 and the first fall freeze around October 23.
How much energy does heating and cooling require in Boonton?
Boonton has 5,631 heating degree days and 865 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Boonton climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00280907 near Boonton.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00280907. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.