Climate Insights for Rayside-Balfour

Greater Sudbury, Ontario, Canada

Hottest
July
25°C peak
Coldest
February
-16°C low
Wettest
October
108mm rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Rayside-Balfour is cool. The average annual temperature is 5°C and approximately 939mm of precipitation falls per year. Rayside-Balfour receives a notable amount of rainfall throughout the year, including during its driest month. Rayside-Balfour is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are February, January, December, when temperatures can drop to -16°C. Light snow can occur between January and December.

Temperature

-20° -10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -7° Average: -11° Min: -15° Feb Max: -6° Average: -11° Min: -16° Mar Max: 1° Average: -5° Min: -10° Apr Max: 8° Average: 3° Min: -2° May Max: 17° Average: 11° Min: 6° Jun Max: 22° Average: 17° Min: 11° Jul Max: 25° Average: 20° Min: 14° Aug Max: 24° Average: 18° Min: 13° Sep Max: 20° Average: 15° Min: 10° Oct Max: 11° Average: 7° Min: 4° Nov Max: 3° Average: 0° Min: -4° Dec Max: -3° Average: -7° Min: -10°
Max
Average
Min

Rayside-Balfour has a wide annual temperature range, spanning 41°C from the coldest to warmest months. The warmest month is July, when average highs reach 25°C and the mean temperature sits around 20°C. February brings the harshest conditions, with lows dropping to -16°C and an average temperature of -11°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 9°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: 52mm Snow: 3mm Feb Precipitation: 55mm Snow: 1mm Mar Precipitation: 66mm Snow: 3mm Apr Precipitation: 95mm Snow: 1mm May Precipitation: 79mm Snow: 0mm Jun Precipitation: 81mm Snow: 0mm Jul Precipitation: 89mm Snow: 0mm Aug Precipitation: 89mm Snow: 0mm Sep Precipitation: 78mm Snow: 0mm Oct Precipitation: 108mm Snow: 0mm Nov Precipitation: 78mm Snow: 1mm Dec Precipitation: 69mm Snow: 2mm
Precipitation
Snow

Rayside-Balfour is a moderately rainy area, receiving approximately 939mm of precipitation annually, which averages out to around 78mm per month. The wettest month is October, averaging 108mm of rainfall. April and August also tend to see above-average precipitation. The driest month is January, with just 52mm. That's 56mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Light snowfall can occur between January and December, totalling around 11cm annually. March is the snowiest month with approximately 3cm.

Wind

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

Rayside-Balfour is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4km/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

10 days until Summer

It is currently spring in Rayside-Balfour, which began on March 20, 2026. Rayside-Balfour 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 July at around 25°C, while the coldest stretch bottoms out in February near -16°C. Summer is next, beginning on June 21, 2026 — 10 days from now.

Spring

Temperatures range from -10 to 17°C. Precipitation is moderate at around 240mm for the season, averaging 80mm per month. Winds are generally light, averaging 5km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 11 to 25°C. Precipitation is moderate at around 259mm for the season, averaging 86mm per month. Winds are generally light, averaging 4km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -4 to 20°C. Precipitation is moderate at around 264mm for the season, averaging 88mm per month. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -16 to -3°C. Precipitation is moderate at around 177mm for the season, averaging 59mm per month. Expect around 7cm of snow accumulation during this period. Winds are generally light, averaging 5km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Best Time to Visit

Jan -11°
Feb -11°
Mar -5°
Apr
May 11°
Jun 17°
Jul 20°
Aug 18°
Sep 15°
Oct
Nov
Dec -7°

The best time to visit Rayside-Balfour is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 86mm per month. By contrast, February can be quite cold with temperatures dropping to -16°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Rayside-Balfour 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
-15 °C
-7 °C
5 km/h
52 mm
3 cm
Feb
-16 °C
-6 °C
5 km/h
55 mm
1 cm
Mar
-10 °C
1 °C
5 km/h
66 mm
3 cm
Apr
-2 °C
8 °C
5 km/h
95 mm
1 cm
May
6 °C
17 °C
5 km/h
79 mm
0 cm
Jun Current
11 °C
22 °C
4 km/h
81 mm
0 cm
Jul
14 °C
25 °C
4 km/h
89 mm
0 cm
Aug
13 °C
24 °C
4 km/h
89 mm
0 cm
Sep
10 °C
20 °C
4 km/h
78 mm
0 cm
Oct
4 °C
11 °C
5 km/h
108 mm
0 cm
Nov
-4 °C
3 °C
5 km/h
78 mm
1 cm
Dec
-10 °C
-3 °C
5 km/h
69 mm
2 cm
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