Climate Insights for Carleton Place

Lanark County, Ontario, Canada

Hottest
August
28°C peak
Coldest
February
-11°C low
Wettest
October
148mm rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Carleton Place is cool. The average annual temperature is 8°C and approximately 905mm of precipitation falls per year. Carleton Place receives a notable amount of rainfall throughout the year, including during its driest month. Carleton Place is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are February, January, December, when temperatures can drop to -11°C. Carleton Place experiences heavy snowfall, typically from January through December.

Temperature

-20° -10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -2° Average: -6° Min: -11° Feb Max: -1° Average: -7° Min: -11° Mar Max: 5° Average: 0° Min: -5° Apr Max: 10° Average: 4° Min: -1° May Max: 20° Average: 14° Min: 8° Jun Max: 25° Average: 18° Min: 12° Jul Max: 27° Average: 22° Min: 16° Aug Max: 28° Average: 22° Min: 17° Sep Max: 23° Average: 17° Min: 12° Oct Max: 14° Average: 9° Min: 6° Nov Max: 8° Average: 4° Min: 0° Dec Max: 0° Average: -4° Min: -7°
Max
Average
Min

Carleton Place has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 22°C. The coldest month is February, when overnight lows fall to -11°C and the daily average is -7°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 10°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 47mm Snow: 22mm Feb Precipitation: 130mm Snow: 76mm Mar Precipitation: 103mm Snow: 29mm Apr Precipitation: 39mm Snow: 15mm May Precipitation: 36mm Snow: 0mm Jun Precipitation: 46mm Snow: 0mm Jul Precipitation: 67mm Snow: 0mm Aug Precipitation: 96mm Snow: 0mm Sep Precipitation: 47mm Snow: 0mm Oct Precipitation: 148mm Snow: 15mm Nov Precipitation: 53mm Snow: 30mm Dec Precipitation: 94mm Snow: 58mm
Precipitation
Snow

Carleton Place is a moderately rainy area, receiving approximately 905mm of precipitation annually, which averages out to around 75mm per month. The wettest month is October, averaging 148mm of rainfall. February and March also tend to see above-average precipitation. The driest month is May, with just 36mm. That's 112mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Carleton Place receives heavy snowfall, accumulating around 245cm annually from January through December. The snowiest month is February, with approximately 76cm. Winter travel should account for significant snow cover.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 4km/h Feb Wind Speed: 4km/h Mar Wind Speed: 3km/h Apr Wind Speed: 3km/h May Wind Speed: 3km/h Jun Wind Speed: 3km/h Jul Wind Speed: 3km/h Aug Wind Speed: 3km/h Sep Wind Speed: 3km/h Oct Wind Speed: 3km/h Nov Wind Speed: 3km/h Dec Wind Speed: 4km/h
Wind Speed

Carleton Place is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

52 days until Autumn

It is currently summer in Carleton Place, which began on June 21, 2026. Carleton Place is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 28°C, while the coldest stretch bottoms out in February near -11°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

Spring

Temperatures range from -5 to 20°C. Precipitation is moderate at around 178mm for the season, averaging 59mm per month. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 12 to 28°C. Precipitation is moderate at around 209mm for the season, averaging 70mm per month. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 0 to 23°C. Precipitation is moderate at around 248mm for the season, averaging 83mm per month. Expect around 45cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -11 to 0°C. Precipitation is moderate at around 271mm for the season, averaging 90mm per month. Expect around 156cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Best Time to Visit

Jan -6°
Feb -7°
Mar
Apr
May 14°
Jun 18°
Jul 22°
Aug 22°
Sep 17°
Oct
Nov
Dec -4°

The best time to visit Carleton Place is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 64mm per month. By contrast, February can be quite cold with temperatures dropping to -11°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Carleton Place based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-11 °C
-2 °C
4 km/h
47 mm
22 cm
Feb
-11 °C
-1 °C
4 km/h
130 mm
76 cm
Mar
-5 °C
5 °C
3 km/h
103 mm
29 cm
Apr
-1 °C
10 °C
3 km/h
39 mm
15 cm
May
8 °C
20 °C
3 km/h
36 mm
0 cm
Jun
12 °C
25 °C
3 km/h
46 mm
0 cm
Jul
16 °C
27 °C
3 km/h
67 mm
0 cm
Aug Current
17 °C
28 °C
3 km/h
96 mm
0 cm
Sep
12 °C
23 °C
3 km/h
47 mm
0 cm
Oct
6 °C
14 °C
3 km/h
148 mm
15 cm
Nov
0 °C
8 °C
3 km/h
53 mm
30 cm
Dec
-7 °C
0 °C
4 km/h
94 mm
58 cm
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