Chelmsford, ON

Ontario

Chelmsford is a small town in Ontario with a population of 500.

Population source: Wikidata (dated census and official estimates), GeoNames. Climate: WorldClim 2.1 normals (1970-2000), NASA POWER. Updated August 2026

500 Population 0/sq mi density

38°F Avg Temperature

Discover Chelmsford, ON

Explore over 40 sections covering people, economy, housing, health, crime, climate, community, costs, trends, schools, colleges, hospitals, treatment centers, industries, museums, libraries, breweries, farmers markets, grocery stores, pharmacies, campgrounds, parks, trails, stadiums, ski resorts, daycare centers, nursing homes, churches, fire stations, cell towers, bridges, power plants, EV stations, prisons, radio stations, airports, police stations, post offices, Amtrak stations, superfund sites, UNESCO sites, and more.
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Full City Profile

How Chelmsford Compares to the U.S. Average (100% = U.S. avg)

People

Population500

Density0/mi²

Climate

Avg Temp38°F (4°C)

Rain34.8 in/yr

Elevation883 ft (269 m)

Chelmsford has a cool climate with an average annual temperature of 38°F (4°C). Winters average 8°F in January while summers reach 65°F in July. Annual precipitation totals 34.8 inches. The area receives 12.8 inches of snow annually. The city sits at an elevation of 883 feet.

Temperature

8°F Jan (-14°C) 65°F Jul (18°C)

Annual Average	38.4°F
	29% below US avg
January Average	8°F (-14°C)
July Average	65°F (18°C)

Geography

Elevation	883 ft (269 m)
Area	1,743.7 sq mi (4,516.3 km²)
Population Density	0/sq mi
Coordinates	46.5834°N, 81.1998°W
Timezone	America/Toronto

Precipitation & Snow

Annual Rainfall 34.8"

8% below US avg

Snowfall 12.8"

Wettest Month (Sep) 3.94"

Driest Month (Feb) 1.81"

Air Quality

Earthquake History

6 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.9. Most recent: M3.1 on Feb 8, 2019.

Mar 9, 1998	Ontario, Canada	M3.9	14 km
Aug 5, 2014	6 km NNW of Lively, Canada	M3.8	11 km
Mar 13, 2005	5 km N of Greater Sudbury, Canada	M3.6	18 km
May 25, 1998	3 km NW of Lively, Canada	M3.4	14 km
Aug 5, 2014	5 km NNW of Lively, Canada	M3.3	12 km
Feb 8, 2019	7 km SW of Azilda, Canada	M3.1	9 km

Source: USGS (M2.5+, 1990-2025)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	8°F (-14°C)	2.4 in	Coldest
February	11°F (-12°C)	1.8 in	Driest
March	22°F (-6°C)	2.6 in
April	37°F (3°C)	2.4 in
May	51°F (10°C)	3.2 in
June	60°F (16°C)	3.0 in
July	65°F (18°C)	2.9 in	Warmest
August	63°F (17°C)	3.2 in
September	55°F (13°C)	3.9 in	Wettest
October	44°F (6°C)	3.5 in
November	31°F (-1°C)	3.2 in
December	15°F (-9°C)	2.9 in

Chelmsford has a seasonal temperature swing of 57°F / from 8°F in January to 65°F in July. Total annual precipitation is 34.8 inches, with September being the wettest month (3.9") and February the driest (1.8").

View full weather details →

Schools in Chelmsford

6 public schools (OpenStreetMap data).

School	Level	Enrollment	Teachers	Student/Teacher
St. Charles Catholic School	-	-	-	-
École Alliance St-Joseph	-	-	-	-
École publique Pavillon-de-l'Avenir	-	-	-	-
Chelmsford Valley District Composite School	-	-	-	-
École secondaire catholique Champlain	-	-	-	-
Chelmsford Public School	-	-	-	-

View full schools details →

Radio Stations near Chelmsford

7 stations within ~55 km.

Station	Genre	Quality
CBC Radio One - Sudbury, ON (MP3 stream)	features, news	MP3 128 kbps
CJRQ-FM "92.7 Rock" Sudbury, ON	mainstream rock, rogers media	AAC+ 48 kbps
BestNewAge	new age, relax	MP3 128 kbps
CKLU 96.7 FM	university radio	MP3
CJMX-FM "KISS 105.3" Sudbury, ON	hot adult contemporary, rogers media	AAC+ 48 kbps
Radio Canada Ici Première (Nord de l'Ontario) Sudbury, ON	radio publique	AAC 48 kbps
Radio Canada Ici Musique (Nord de l'Ontario) Sudbury, ON	blues, classical	AAC 48 kbps

Museums in Chelmsford

Name	Type	Address	Phone	Annual Revenue
Anderson Farm Museum
Copper Cliff Museum
Dynamic Earth
Flour Mill Museum
Greater Sudbury Heritage Museums
Rayside-Balfour Museum
Science North

Libraries in Chelmsford

Name	Address	Staff	Annual Visits	Circulation	Collection	Programs
Greater Sudbury Public Library - Azilda Branch		0.0
Greater Sudbury Public Library - Chelmsford Branch		0.0
Greater Sudbury Public Library - Copper Cliff Branch		0.0
Greater Sudbury Public Library - Lively Branch		0.0
Greater Sudbury Public Library - South End Branch		0.0
Greater Sudbury Seed Library		0.0
Main Branch		0.0
Valley East Public Library		0.0

Farmers Markets in Chelmsford

Name	Address	Season	Hours	Organic	Website
Sudbury Market
The Marketplace Sudbury

Cafes in Chelmsford

2 cafes within city radius - OpenStreetMap data

Country Style

Tim Hortons

Dentists in Chelmsford

1 dentists within city radius - OpenStreetMap data

Rayside Dental

Veterinaries in Chelmsford

1 veterinaries within city radius - OpenStreetMap data

Chelmsford Animal Hospital

Gas Stations in Chelmsford

7 gas stations within city radius - OpenStreetMap data

Canadian Tire

Circle K

Esso

Norstar

Petro-Canada

Pioneer

UPI Energy

Banks in Chelmsford

3 banks within city radius - OpenStreetMap data

Desjardins

RBC

Scotiabank

Shopping Malls in Chelmsford

1 shopping malls within city radius - OpenStreetMap data

Place Bonaventure

Gyms in Chelmsford

1 gyms within city radius - OpenStreetMap data

Anytime Fitness

Golf Courses in Chelmsford

2 golf courses within city radius - OpenStreetMap data

Chelmsford Golf Course

Forest Ridge Golf & Country Club

Breweries in Chelmsford

Name	Type	Address	Phone	Website
Stack Brewing

Stadiums & Teams in Chelmsford

Team	League	Division

Ski Resorts Near Chelmsford

3 ski resorts within range.

Resort	Lifts	Peak (m)	Price	Season	Night	Park
Boogie Mountain	-	-	$0	-	-	-
Former Nordic Ski Hill	-	-	$0	-	-	-
Adanac Ski Hill	-	-	$0	-	-	-

Airports Near Chelmsford

6 airports within the area.

Airport	IATA	Type
Manitoulin East Municipal Airport	YEM	Medium Airport
Sudbury Airport	YSB	Medium Airport
Alban Airport	-	Small Airport
Dominion Airpark	-	Small Airport
Killarney Airport	-	Small Airport
Sudbury / Coniston Airport	-	Small Airport

Post Offices in Chelmsford

2 post offices.

Post Office	Address
Canada Post
Canada Post

Treatment Centers in Chelmsford

1 treatment centers.

Center	Type	Phone
OATC

Churches & Religious Organizations in Chelmsford

3 religious organizations (IRS tax-exempt data).

Name	Address
New Life Christian Centre
Paroisse St-Joseph
St. Alexander's Church

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Frequently Asked Questions About Chelmsford

What is the population of Chelmsford?

Chelmsford has a population of 500 residents and is located in Ontario. The population density is 0 people per square mile, spread across 1,743.7 square miles.

What is the weather like in Chelmsford?

Chelmsford has a cool climate with an average annual temperature of 38°F (4°C). Winter temperatures average 8°F in January, while summers reach an average of 65°F in July. Annual rainfall totals 34.8 inches, with 12.8 inches of snow.

Nearby Cities

Rayside-Balfour, ON 14,557 pop · 1.8 mi Azilda, ON 4,663 pop · 5.3 mi Dowling, ON 1,466 pop · 6.6 mi Valley East, ON 17,451 pop · 10.5 mi Lively, ON 5,608 pop · 10.6 mi Sudbury, Unorganized, North Part, ON 2,902 pop · 11.7 mi Greater Sudbury / Grand Sudbury, ON 166,004 pop · 11.9 mi Greater Sudbury, ON 166,004 pop · 11.9 mi Capreol, ON 3,260 pop · 15.7 mi Cartier, MB 3,344 pop · 18.5 mi Markstay-Warren, ON 2,708 pop · 35.0 mi Espanola, ON 5,185 pop · 35.1 mi St.-Charles, ON 1,357 pop · 40.2 mi French River / Rivière des Français, ON 2,828 pop · 44.9 mi

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