Climate averages 1991–2020

Greater Sudbury weather
in June.

A warm, moderately wet month: the 3rd warmest and the 8th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 22.1°C Daytime mean, June
Average low 12.1°C Night-time mean, June
Rainfall 81 mm 11 days with ≥1 mm
Daylight 16 h Sunrise to sunset, per day
Every month in Greater Sudbury · average highYear overview

June is a warm month in Greater Sudbury: daytime highs average 22.1°C and nights cool to about 12.1°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 81 mm of rain on roughly 11 days, which makes June a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 45 min on an average June day.

The nearest other city in this atlas is Barrie (254 km away). In June its highs average 22.4°C, about as warm as Greater Sudbury, with 87 mm of rain.

Among the 86 cities listed in Canada, Greater Sudbury ranks joint 44th of 86 for the warmest June highs and joint 19th of 86 for the driest June (rainfall, lowest first). The mean June high of those 86 cities is 21.4°C; Greater Sudbury is 0.7°C warmer than that mean.

From June to July, average highs rise by 2.1°C to 24.2°C, and monthly rainfall rises from 81 mm to 87 mm.

The annual picture

June in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -20-15-10-5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly precipitation

Average total · mm
Average monthly precipitation totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Greater Sudbury climate table

1991–2020
Monthly climate averages for Greater Sudbury, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -7.4°C-16.7°C-16.7°C5310.19.09 h
February -5.7°C-15.2°C-15.2°C417.710.310 h
March 0.4°C-9.4°C-9.4°C507.811.912 h
April 8.2°C-2.0°C-2.0°C709.813.514 h
May 16.8°C5.8°C5.8°C7210.615.015 h
June, selected 22.1°C12.1°C12.1°C8110.715.716 h
July 24.2°C15.0°C15.0°C8710.715.415 h
August 23.0°C14.4°C14.4°C9011.214.214 h
September 18.6°C10.5°C10.5°C9211.012.613 h
October 10.9°C3.9°C3.9°C9412.710.911 h
November 3.3°C-3.4°C-3.4°C7311.09.59 h
December -3.4°C-11.4°C-11.4°C5911.18.79 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

June in nearby cities

Distance from Greater Sudbury

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Greater Sudbury) is explained once on the Greater Sudbury year overview and on the Sources, method and limits page.