Climate Comfort Score
64/100
Good
NOAA 1991–2020 normals 53°F annual avg Public-domain federal data
Somerville Somerset, NJ Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 53°F
- Avg annual temp
- 64/100
- Comfort score
- 45.5"
- Annual precip
- 175d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Somerville Somerset
Somerville Somerset, New Jersey averages 53°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.
- 53°F
- average temperature, NOAA 1991-2020 normal
- 64/100
- comfort score, milder than 51% of U.S. cities
- 45.5"
- yearly precipitation total
- 175 days
- growing season, frost-free days
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
53°F (11°C)
Avg High
64°F
Avg Low
41°F
Annual Precip
45.5"
Comfort Score
64/100
Good
Avg Annual Temperature
53°F
30-year mean (NOAA NCEI)
Annual Precipitation
45.5"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Somerville Somerset) 64.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Somerville Somerset area.
How Somerville Somerset compares to every U.S. city
Somerville Somerset's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 Top 49% higher than 51% of 6,915 US cities
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 Somerville Somerset
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Somerville Somerset, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 39°F (4°C) | 21°F (-6°C) | 30°F (-1°C) | 3.2" | 27.0 | 0.0 |
| February | 43°F (6°C) | 22°F (-5°C) | 33°F (0°C) | 2.2" | 24.9 | 0.0 |
| March | 51°F (10°C) | 30°F (-1°C) | 40°F (5°C) | 3.9" | 19.2 | 0.0 |
| April | 63°F (17°C) | 39°F (4°C) | 51°F (11°C) | 3.6" | 7.8 | 0.4 |
| May | 73°F (23°C) | 48°F (9°C) | 61°F (16°C) | 3.5" | 0.6 | 1.1 |
| June | 81°F (27°C) | 58°F (14°C) | 70°F (21°C) | 4.2" | 0.0 | 3.9 |
| July | 86°F (30°C) | 63°F (17°C) | 75°F (24°C) | 4.9" | 0.0 | 10.0 |
| August | 84°F (29°C) | 61°F (16°C) | 73°F (23°C) | 5.2" | 0.0 | 6.0 |
| September | 78°F (25°C) | 54°F (12°C) | 66°F (19°C) | 3.8" | 0.0 | 1.8 |
| October | 66°F (19°C) | 42°F (6°C) | 54°F (12°C) | 3.7" | 4.5 | 0.1 |
| November | 55°F (13°C) | 33°F (0°C) | 44°F (7°C) | 3.4" | 16.1 | 0.0 |
| December | 44°F (7°C) | 26°F (-3°C) | 35°F (2°C) | 3.9" | 24.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 3.2"
10.3 days with precipitation
February 2.2"
10.9 days with precipitation
March 3.9"
11.6 days with precipitation
April 3.6"
11.8 days with precipitation
May 3.5"
14.0 days with precipitation
June 4.2"
13.9 days with precipitation
July 4.9"
13.7 days with precipitation
August 5.2"
15.6 days with precipitation
September 3.8"
14.6 days with precipitation
October 3.7"
14.3 days with precipitation
November 3.4"
11.0 days with precipitation
December 3.9"
10.9 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 18
50% probability date
Last Spring Freeze
April 26
50% probability date
Growing Season
175 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,385
Higher = more heating needed
Cooling Degree Days
859
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Somerville Somerset's climate means for you
Somerville Somerset runs 53°F a year - peaking in July, coldest in January.
- Gardeners get about 175 frost-free days, with the last spring freeze near April 26 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,385 heating and 859 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: Somerville Somerset, NJ
Based on station USW00054785 feeding NOAA's 1991–2020 climate normals, Somerville Somerset, New Jersey averages 53°F a year, ranging from a mean daily high of 64°F to a mean daily low of 41°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Anyone planning to live, garden, or travel in Somerville Somerset should weigh precipitation alongside temperature: the annual average runs 45.5 inches, predominantly as rainfall. The frost-free season averages 175 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 26 and the first fall freeze near October 18. And on the energy front, 5,385 heating degree days and 859 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Somerville Somerset scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Somerville Somerset, NJ? ▼
The average annual temperature in Somerville Somerset, New Jersey is 53°F. The warmest month averages 86°F (30°C) and the coldest averages 21°F (-6°C).
How much rain does Somerville Somerset get? ▼
Somerville Somerset receives 45.5 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Somerville Somerset? ▼
Somerville Somerset has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Somerville Somerset? ▼
Somerville Somerset has approximately 175 frost-free days per year, with the last spring freeze around April 26 and the first fall freeze around October 18.
How much energy does heating and cooling require in Somerville Somerset? ▼
Somerville Somerset has 5,385 heating degree days and 859 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 Somerville Somerset climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00054785 near Somerville Somerset.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00054785. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.