Climate and monthly weather forecastSudbury, Canada
Climate and monthly weather forecast
The climate of Sudbury
Sudbury, Canada is characterized by a Humid continental climate according to the Köppen climate classification, under the category of Dfb. This designation implies there is no dry season and the summer time experiences warm conditions. Geographically located in a northern region of the world, Sudbury possesses a distinguishing climate with varying patterns that fluctuate throughout the year.The temperature in Sudbury take a wide swing during different seasons, with the lows of -15.9°C (3.4°F) in January to the highs of 24.5°C (76.1°F) in July. Humidity stays relatively stable throughout the year, with a mark between 68% in May to 93% in January. The city experiences consistent rainfall throughout the year with monthly averages ranging from 27mm (1.06") in January & February to 65mm (2.56") in October. Snowfall, however, is majorly experienced from November to April, reaching a high in January with 179mm (7.05").
A high number of daylight hours can be enjoyed in the summer months from May to July, spanning an average of 15 hours. Contrarily, the winter period has less sunshine with 8.7 hours in December. The UV index is also season-dependent, reaching a peak of 5 from June to August.
The wind speed in Sudbury remains fairly constant throughout the year, with averages of 10.1km/h (6.3mph) in August and 12.6km/h (7.8mph) in February. Peak gusts, however, can reach up to 19.2km/h (11.9mph), usually in the second month of the year.
The best time to visit Sudbury
A visit to Sudbury would be best during the summer months from June to August, when the temperatures are comfortably warm, ranging from 21.4°C (70.5°F) to 24.5°C (76.1°F). The amount of sunshine also maximizes during this period, with an average of 10.2 hours in July. The city's UV index during these months are at their highest, so tourists planning outdoor activities should prioritize UV protection. These are also the months with the lowest cloud cover making it easier to enjoy outdoor activities.The worst time to visit Sudbury
The winter period from November through March is often the least inviting time to visit Sudbury. Temperatures during this time can plunge to chilling lows of -15.9°C (3.4°F), with snowfall reaching up to 179mm (7.05") in January. With shorter daylight hours and lower levels of sunshine, outdoor activities can be rather restricted.Spring weather in Sudbury
Spring, from March to May, sees the transition from cold winter months to relatively warmer averages. Temperatures start rising from -0.8°C (30.6°F) in March to a comfortable 16.6°C (61.9°F) in May. Rainfall also sees a steady increase with an average of 39mm (1.54") precipitation in the month of May. Snowfall drastically drops off, from 134mm (5.28") in March to 18mm (0.71") in May. However, the wind speed remains constant, averaging 12.5km/h (7.8mph) in April.Summer weather in Sudbury
In the summer months from June to August, Sudbury experiences maximum warmth with temperatures hitting a high of 24.5°C (76.1°F) in July. This is accompanied by increased sunshine hours, reaching a peak of 10.2 hours in July. The rainfall maintains an average of 36mm (1.42") in June, slightly reducing to 34mm (1.34") in July. Furthermore, the UV Index reaches its highest at this time of year, peaking at 5 in June, July, and August.Autumn weather in Sudbury
Autumn, from September to November, sees a shift from warm to cooler temperatures, dropping from 18.7°C (65.7°F) to a chilly 2.4°C (36.3°F) as November sets in. Rainfall increases substantially during this period, reaching 65mm (2.56") in October. Snowfall, typically absent in the summer, begins to appear in November with 138mm (5.43") recorded.Winter weather in Sudbury
Winter in Sudbury, from December to February, is characterized by cold conditions, snow and reduced sunlight. Average temperatures can dip as low as -15.9°C (3.4°F) in January. Snowfall is at its peak with up to 179mm (7.05") accumulated in January. Daylight hours decrease to an average of 8.7 hours in December, causing sunlight exposure to drop drastically. Despite these conditions, the beauty of the city blanketed in snow possesses a charm of its own.Weather in January
January in Sudbury, Canada, is recognized for its harshly cold temperatures, with lows plummeting down to -15.9°C (3.4°F) and highs only reaching -8°C (17.6°F). The frigid temperatures are further reflected in the hefty snowfall of 179mm (7.05") throughout the month. Weather in January »Weather in February
February follows January's suit, remaining chilly with significant snowfall, even though the temperatures tend to slightly increase. The cold is accompanied by a substantial 157mm (6.18") snowfall in February, signaling that winter is still in full swing. Weather in February »Weather in March
A slight hint of spring starts to unveil in March with a decrease in snowfall and a noticeable rise in temperatures. The month stands out with a relatively reduced number of snowfall days at only 13.3 days, along with a marked increase in daylight to 11.9 hours. Weather in March »Weather in April
April signals a marked shift in Sudbury's weather as the snowfall drastically drops from 134mm (5.28") to 87mm (3.43"), indicative of the snow season's close. Sudbury residents breathe a sigh of relief as the sun shines brighter, extending daylight hours to 13.6. Weather in April »Weather in May
May, in Sudbury, signifies the undeniable arrival of spring celebrated with considerably warmer temperatures and bright sunlight. Standout features include the sharp increase to 16.6°C (61.9°F) in the highest average temperature and the dip to an almost insignificant snowfall of 18mm (0.71"). Weather in May »Weather in June
The month of June marks the onset of summer in Sudbury displaying noticeably improved weather conditions. Notably, there's a great jump in humidity from 68% to 70%, corresponding with the first month without any snowfall. Long leisurely walks and trips to the lake are more common as everyone tries to make the most out of the sunlight. Weather in June »Weather in July
July brings Sudbury's summer to its peak, boasting the highest average temperatures of the year. The warmest conditions peak in July, with an all-year high of 24.5°C (76.1°F) in the temperature average. People can often be seen splashing around in Sudbury's numerous lakes during this month. Weather in July »Weather in August
Despite a slight decrease in average temperatures in August, it remains warm, characterizing the continuance of Sudbury's summer. Even though temperatures cool slightly from 24.5°C (76.1°F) to 23.1°C (73.6°F), it's still a suitable time for water activities and outdoor gatherings. Weather in August »Weather in September
September in Sudbury witnesses the onset of the fall season with notable changes in climatic conditions. Weather conditions shift as the temperature drops to 18.7°C (65.7°F), marking the transition from summer's warmth to autumn's coolness. Weather in September »Weather in October
October in Sudbury presents a significant increase in rainfall from 40mm (1.57") to 65mm (2.56"), making it the rainiest month of the year. The city's landscape readies itself for a shroud of winter as temperatures continue to decrease. Weather in October »Weather in November
November in Sudbury indicates a substantial transition into the winter season, as the temperature dips below freezing. The snowfall more than triples from November to December, from 42mm (1.65") to 138mm (5.43"), signaling the winter season's return. Weather in November »Weather in December
Completing the weather cycle of Sudbury, December brings the year to an end with the return of a full-fledged winter climate. The extended period of cold comes to a head with an average low temperature peaking at -10.4°C (13.3°F). Weather in December »Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Temperature records mark January as the coldest month, with highs averaging -8°C (17.6°F) and lows at -15.9°C (3.4°F).
January and February, with an average relative humidity of 93%, are most humid months in Sudbury, Canada.
Throughout the year, there are 108.1 rainfall days, and 474mm (18.66") of precipitation is accumulated.
January through May, October through December are months with snowfall in Sudbury, Canada.
The month with the most snowfall in Sudbury is January, when snow falls for 18.6 days and typically aggregates up to 179mm (7.05") of snow.
In Sudbury, Canada, during the entire year, snow falls for 86.7 days and aggregates up to 865mm (34.06") of snow.
The months with the least sunshine are January and February, with an average of 2h of sunshine.
The months with the lowest UV index in Sudbury, Canada, are January through March, November and December, with an average maximum UV index of 1.
The months with the least rainfall are February and December Rain falls for 2.6 days and accumulates 27mm (1.06") of rain.
On Sunday, 10. March 2024, at 2:00 am, Daylight Saving Time starts in Sudbury, and the time zone changes from EST to EDT. Daylight Saving Time ends on Sunday, 03. November 2024, at 2:00 am, and the time zone reverts from EDT to EST.
With an average relative humidity of 68%, May is the least humid month in Sudbury.
In Sudbury, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 48min of daylight.
June through August, with an average maximum UV index of 5, are months with the highest UV index in Sudbury, Canada.
July, recognised by an average high temperature of 24.5°C (76.1°F) and a low of 12.7°C (54.9°F), is Sudbury's warmest month.
July has the most sunshine of the year in Sudbury, with an average of 10.2h of sunshine.
October is the month with the most rainfall in Sudbury. Rain falls for 13.7 days and accumulates 65mm (2.56") of precipitation.
The month with the shortest days is December, with an average of 8h and 36min of daylight.
Average temperature
Sudbury, Canada
The warmest month (with the highest average high temperature) is July (24.5°C).
The month with the lowest average high temperature is January (-8°C).
The month with the highest average low temperature is July (12.7°C).
The coldest month (with the lowest average low temperature) is January (-15.9°C).
Average pressure
Sudbury, Canada
- Average pressure in January:
1016.6mbar - Average pressure in February:
1016.9mbar - Average pressure in March:
1018.8mbar - Average pressure in April:
1015.1mbar - Average pressure in May:
1015.2mbar - Average pressure in June:
1012.8mbar
- Average pressure in July:
1013.1mbar - Average pressure in August:
1013.7mbar - Average pressure in September:
1016.6mbar - Average pressure in October:
1014.8mbar - Average pressure in November:
1016.9mbar - Average pressure in December:
1017.1mbar
The month with the highest atmospheric pressure is March (1018.8mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).
Average wind speed
Sudbury, Canada
- Average wind speed in January:
11.9km/h - Average wind speed in February:
12.6km/h - Average wind speed in March:
11.9km/h - Average wind speed in April:
12.5km/h - Average wind speed in May:
11km/h - Average wind speed in June:
10.1km/h
- Average wind speed in July:
10.3km/h - Average wind speed in August:
10.1km/h - Average wind speed in September:
10.4km/h - Average wind speed in October:
12.1km/h - Average wind speed in November:
11.9km/h - Average wind speed in December:
11.8km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest months (with the lowest average wind speed) are June and August (10.1km/h).
Average humidity
Sudbury, Canada
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (68%).
Average rainfall
Sudbury, Canada
The wettest month (with the highest rainfall) is October (65mm).
The driest months (with the least rainfall) are February and December (27mm).
Average rainfall days
Sudbury, Canada
- Average rainfall days in January:
2.4 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
6.4 days - Average rainfall days in April:
9.9 days - Average rainfall days in May:
12 days - Average rainfall days in June:
11.3 days
- Average rainfall days in July:
12.8 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
5 days
The month with the highest number of rainy days is October (13.7 days).
The month with the least rainy days is January (2.4 days).
Average snowfall
Sudbury, Canada
- Average snowfall in January:
179mm - Average snowfall in February:
157mm - Average snowfall in March:
134mm - Average snowfall in April:
87mm - Average snowfall in May:
18mm - Average snowfall in June:
0mm
The month with the highest snowfall is January (179mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Sudbury, Canada
- Average snowfall days in January:
18.6 days - Average snowfall days in February:
17 days - Average snowfall days in March:
13.3 days - Average snowfall days in April:
7.4 days - Average snowfall days in May:
1.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
3 days - Average snowfall days in November:
10.5 days - Average snowfall days in December:
15.7 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sudbury, Canada
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 24min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
2h and 0min - Average sunshine in February:
2h and 0min - Average sunshine in March:
3h and 42min - Average sunshine in April:
5h and 54min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 12min - Average sunshine in September:
8h and 0min - Average sunshine in October:
4h and 18min - Average sunshine in November:
3h and 30min - Average sunshine in December:
2h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 0min).
Average sunshine days
Sudbury, Canada
- Average sunshine days in January:
13.4 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
14.6 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
17.3 days - Average sunshine days in June:
16.8 days
- Average sunshine days in July:
17.1 days - Average sunshine days in August:
16.1 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
13.9 days - Average sunshine days in December:
13.6 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is February (12.7 days).
Average UV index
Sudbury, Canada
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover
Sudbury, Canada
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility
Sudbury, Canada
The months with the highest visibility are May, June and July (9km).
The month with the lowest visibility is January (6km).
