Climate Insights for Rossport

Thunder Bay District, Ontario, Canada

Hottest
August
17°C peak62°F peak
Coldest
January
-10°C low14°F low
Wettest
September
101 mm rain4 in rain
Best to Visit
August
Mild temps & low rain

Climate Overview

The climate in Rossport is cool. The average annual temperature is 3°C and approximately 847 mm of precipitation falls per year. Rossport receives a notable amount of rainfall throughout the year, including during its driest month. Rossport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are January, February, December, when temperatures can drop to -10°C. Rossport experiences heavy snowfall, typically from January through December.The climate in Rossport is cool. The average annual temperature is 38°F and approximately 33.4 in of precipitation falls per year. Rossport receives a notable amount of rainfall throughout the year, including during its driest month. Rossport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are January, February, December, when temperatures can drop to 14°F. Rossport experiences heavy snowfall, typically from January through December.

Temperature

-10°-5°0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: -5°Average: -8°Min: -10°FebMax: -5°Average: -8°Min: -10°MarMax: -1°Average: -3°Min: -5°AprMax: 3°Average: 1°Min: -1°MayMax: 6°Average: 4°Min: 3°JunMax: 10°Average: 7°Min: 5°JulMax: 13°Average: 11°Min: 10°AugMax: 17°Average: 15°Min: 14°SepMax: 15°Average: 14°Min: 13°OctMax: 10°Average: 8°Min: 7°NovMax: 3°Average: 1°Min: 0°DecMax: -2°Average: -5°Min: -7°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 23°FAverage: 18°FMin: 14°FFebMax: 24°FAverage: 18°FMin: 14°FMarMax: 31°FAverage: 26°FMin: 22°FAprMax: 37°FAverage: 33°FMin: 30°FMayMax: 43°FAverage: 39°FMin: 37°FJunMax: 50°FAverage: 45°FMin: 42°FJulMax: 56°FAverage: 52°FMin: 49°FAugMax: 62°FAverage: 59°FMin: 58°FSepMax: 59°FAverage: 57°FMin: 55°FOctMax: 49°FAverage: 47°FMin: 44°FNovMax: 38°FAverage: 34°FMin: 32°FDecMax: 28°FAverage: 23°FMin: 19°F
Max
Average
Min

Temperatures in Rossport vary considerably across the year, with a 27°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 17°C with a mean of 15°C. The coldest month is January, when overnight lows fall to -10°C and the daily average is -8°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.Temperatures in Rossport vary considerably across the year, with a 48°F difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 62°F with a mean of 59°F. The coldest month is January, when overnight lows fall to 14°F and the daily average is 18°F. Daily temperature variation is modest, with an average difference of 7°F between highs and lows. The sharpest temperature change occurs between October and November, with a 12°F shift in average temperatures.

Precipitation

0mm25mm50mm75mm100mm125mm150mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 48mmSnow: 46mmFebPrecipitation: 56mmSnow: 51mmMarPrecipitation: 50mmSnow: 32mmAprPrecipitation: 70mmSnow: 28mmMayPrecipitation: 58mmSnow: 3mmJunPrecipitation: 75mmSnow: 0mmJulPrecipitation: 61mmSnow: 0mmAugPrecipitation: 76mmSnow: 0mmSepPrecipitation: 101mmSnow: 0mmOctPrecipitation: 93mmSnow: 4mmNovPrecipitation: 78mmSnow: 30mmDecPrecipitation: 80mmSnow: 60mm
Precipitation
Snow
0in2in4in6in8in10in12in14in16in18in20in22in24inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 1.9inSnow (in): 18inFebPrecipitation: 2.2inSnow (in): 20inMarPrecipitation: 2inSnow (in): 13inAprPrecipitation: 2.8inSnow (in): 11inMayPrecipitation: 2.3inSnow (in): 1inJunPrecipitation: 3inSnow (in): 0inJulPrecipitation: 2.4inSnow (in): 0inAugPrecipitation: 3inSnow (in): 0inSepPrecipitation: 4inSnow (in): 0inOctPrecipitation: 3.7inSnow (in): 2inNovPrecipitation: 3.1inSnow (in): 12inDecPrecipitation: 3.1inSnow (in): 24in
Precipitation
Snow (in)

Rossport is a moderately rainy area, receiving approximately 847 mm of precipitation annually, which averages out to around 71 mm per month. The wettest month is September, averaging 101 mm of rainfall. October and December also tend to see above-average precipitation. The driest month is January, with just 48 mm. That's 54 mm less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Rossport receives heavy snowfall, accumulating around 254cm annually from January through December. The snowiest month is December, with approximately 60cm. Winter travel should account for significant snow cover.Rossport is a moderately rainy area, receiving approximately 33.4 in of precipitation annually, which averages out to around 2.8 in per month. The wettest month is September, averaging 4 in of rainfall. October and December also tend to see above-average precipitation. The driest month is January, with just 1.9 in. That's 2.1 in less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Rossport receives heavy snowfall, accumulating around 100in annually from January through December. The snowiest month is December, with approximately 24in. Winter travel should account for significant snow cover.

Wind

0km/h5km/h10km/h15km/h20km/h25km/h30km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 26km/hFebWind Speed: 26km/hMarWind Speed: 23km/hAprWind Speed: 22km/hMayWind Speed: 17km/hJunWind Speed: 15km/hJulWind Speed: 14km/hAugWind Speed: 16km/hSepWind Speed: 19km/hOctWind Speed: 24km/hNovWind Speed: 26km/hDecWind Speed: 27km/h
Wind Speed
0mph5mph10mph15mph20mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 16mphFebWind Speed: 16mphMarWind Speed: 15mphAprWind Speed: 14mphMayWind Speed: 11mphJunWind Speed: 10mphJulWind Speed: 9mphAugWind Speed: 10mphSepWind Speed: 12mphOctWind Speed: 15mphNovWind Speed: 16mphDecWind Speed: 17mph
Wind Speed

Rossport is moderately windy, with an average annual wind speed of 21km/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 27km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 13km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 26km/h in winter, 21km/h in spring, 15km/h in summer, 23km/h in autumn.Rossport is very windy, with an average annual wind speed of 13mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 17mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 9mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 16mph in winter, 13mph in spring, 10mph in summer, 14mph in autumn.

Best Time to Visit

Jan-8°18°F
Feb-8°18°F
Mar-3°26°F
Apr1°33°F
May4°39°F
Jun7°45°F
Jul11°52°F
Aug15°59°F
Sep14°57°F
Oct8°47°F
Nov1°34°F
Dec-5°23°F

The best time to visit Rossport is during August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 15°C with modest rainfall averaging 76 mm per month. By contrast, January can be quite cold with temperatures dropping to -10°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.The best time to visit Rossport is during August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 59°F with modest rainfall averaging 3 in per month. By contrast, January can be quite cold with temperatures dropping to 14°F. 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 Rossport 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.The table below shows monthly climate averages for Rossport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). 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
-10 °C14 °F
-5 °C23 °F
26 km/h16 mph
48 mm1.9 in
46 cm18 in
Feb
-10 °C14 °F
-5 °C24 °F
26 km/h16 mph
56 mm2.2 in
51 cm20 in
Mar
-5 °C22 °F
-1 °C31 °F
23 km/h15 mph
50 mm2 in
32 cm13 in
Apr
-1 °C30 °F
3 °C37 °F
22 km/h14 mph
70 mm2.8 in
28 cm11 in
May
3 °C37 °F
6 °C43 °F
17 km/h11 mph
58 mm2.3 in
3 cm1 in
Jun
5 °C42 °F
10 °C50 °F
15 km/h10 mph
75 mm3 in
0 cm0 in
Jul
10 °C49 °F
13 °C56 °F
14 km/h9 mph
61 mm2.4 in
0 cm0 in
Aug
14 °C58 °F
17 °C62 °F
16 km/h10 mph
76 mm3 in
0 cm0 in
Sep
13 °C55 °F
15 °C59 °F
19 km/h12 mph
101 mm4 in
0 cm0 in
OctCurrent
7 °C44 °F
10 °C49 °F
24 km/h15 mph
93 mm3.7 in
4 cm2 in
Nov
0 °C32 °F
3 °C38 °F
26 km/h16 mph
78 mm3.1 in
30 cm12 in
Dec
-7 °C19 °F
-2 °C28 °F
27 km/h17 mph
80 mm3.1 in
60 cm24 in