Climate Insights for Terrace Bay

Thunder Bay District, Ontario, Canada

Hottest
August
16°C peak61°F peak
Coldest
January
-11°C low13°F low
Wettest
September
109 mm rain4.3 in rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Terrace Bay is cool. The average annual temperature is 3°C and approximately 899 mm of precipitation falls per year. Terrace Bay receives a notable amount of rainfall throughout the year, including during its driest month. Terrace Bay 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 -11°C. Terrace Bay experiences heavy snowfall, typically from January through December.The climate in Terrace Bay is cool. The average annual temperature is 37°F and approximately 35.4 in of precipitation falls per year. Terrace Bay receives a notable amount of rainfall throughout the year, including during its driest month. Terrace Bay 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 13°F. Terrace Bay experiences heavy snowfall, typically from January through December.

Temperature

-20°-10°0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: -5°Average: -8°Min: -11°FebMax: -5°Average: -8°Min: -10°MarMax: -1°Average: -4°Min: -6°AprMax: 3°Average: 0°Min: -1°MayMax: 6°Average: 4°Min: 3°JunMax: 10°Average: 7°Min: 5°JulMax: 13°Average: 11°Min: 9°AugMax: 16°Average: 15°Min: 14°SepMax: 15°Average: 13°Min: 12°OctMax: 9°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: 17°FMin: 13°FFebMax: 23°FAverage: 18°FMin: 14°FMarMax: 31°FAverage: 25°FMin: 21°FAprMax: 37°FAverage: 33°FMin: 30°FMayMax: 43°FAverage: 39°FMin: 37°FJunMax: 49°FAverage: 45°FMin: 42°FJulMax: 55°FAverage: 51°FMin: 49°FAugMax: 61°FAverage: 59°FMin: 57°FSepMax: 59°FAverage: 56°FMin: 54°FOctMax: 49°FAverage: 46°FMin: 44°FNovMax: 38°FAverage: 34°FMin: 31°FDecMax: 28°FAverage: 23°FMin: 19°F
Max
Average
Min

Temperatures in Terrace Bay 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 16°C with a mean of 15°C. The coldest month is January, when overnight lows fall to -11°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 Terrace Bay 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 61°F with a mean of 59°F. The coldest month is January, when overnight lows fall to 13°F and the daily average is 17°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: 51mmSnow: 48mmFebPrecipitation: 60mmSnow: 55mmMarPrecipitation: 54mmSnow: 35mmAprPrecipitation: 71mmSnow: 28mmMayPrecipitation: 65mmSnow: 2mmJunPrecipitation: 83mmSnow: 0mmJulPrecipitation: 63mmSnow: 0mmAugPrecipitation: 81mmSnow: 0mmSepPrecipitation: 109mmSnow: 0mmOctPrecipitation: 97mmSnow: 5mmNovPrecipitation: 82mmSnow: 30mmDecPrecipitation: 84mmSnow: 63mm
Precipitation
Snow
0in2in4in6in8in10in12in14in16in18in20in22in24inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 2inSnow (in): 19inFebPrecipitation: 2.4inSnow (in): 22inMarPrecipitation: 2.1inSnow (in): 14inAprPrecipitation: 2.8inSnow (in): 11inMayPrecipitation: 2.6inSnow (in): 1inJunPrecipitation: 3.3inSnow (in): 0inJulPrecipitation: 2.5inSnow (in): 0inAugPrecipitation: 3.2inSnow (in): 0inSepPrecipitation: 4.3inSnow (in): 0inOctPrecipitation: 3.8inSnow (in): 2inNovPrecipitation: 3.2inSnow (in): 12inDecPrecipitation: 3.3inSnow (in): 25in
Precipitation
Snow (in)

Terrace Bay is a moderately rainy area, receiving approximately 899 mm of precipitation annually, which averages out to around 75 mm per month. The wettest month is September, averaging 109 mm of rainfall. October and December also tend to see above-average precipitation. The driest month is January, with just 51 mm. That's 58 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. Terrace Bay receives heavy snowfall, accumulating around 266cm annually from January through December. The snowiest month is December, with approximately 63cm. Winter travel should account for significant snow cover.Terrace Bay is a moderately rainy area, receiving approximately 35.4 in of precipitation annually, which averages out to around 3 in per month. The wettest month is September, averaging 4.3 in of rainfall. October and December also tend to see above-average precipitation. The driest month is January, with just 2 in. That's 2.3 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. Terrace Bay receives heavy snowfall, accumulating around 105in annually from January through December. The snowiest month is December, with approximately 25in. 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: 16km/hJunWind Speed: 14km/hJulWind Speed: 13km/hAugWind Speed: 16km/hSepWind Speed: 19km/hOctWind Speed: 24km/hNovWind Speed: 26km/hDecWind Speed: 27km/h
Wind Speed
0mph5mph10mph15mph20mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 16mphFebWind Speed: 16mphMarWind Speed: 14mphAprWind Speed: 13mphMayWind Speed: 10mphJunWind Speed: 9mphJulWind Speed: 8mphAugWind Speed: 10mphSepWind Speed: 12mphOctWind Speed: 15mphNovWind Speed: 16mphDecWind Speed: 17mph
Wind Speed

Terrace Bay 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 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 14km/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, 20km/h in spring, 15km/h in summer, 23km/h in autumn.Terrace Bay 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 8mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9mph 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, 9mph in summer, 14mph in autumn.

Monthly Climate Data

The table below shows monthly climate averages for Terrace Bay 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 Terrace Bay 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
-11 °C13 °F
-5 °C23 °F
26 km/h16 mph
51 mm2 in
48 cm19 in
Feb
-10 °C14 °F
-5 °C23 °F
26 km/h16 mph
60 mm2.4 in
55 cm22 in
Mar
-6 °C21 °F
-1 °C31 °F
23 km/h14 mph
54 mm2.1 in
35 cm14 in
Apr
-1 °C30 °F
3 °C37 °F
22 km/h13 mph
71 mm2.8 in
28 cm11 in
May
3 °C37 °F
6 °C43 °F
16 km/h10 mph
65 mm2.6 in
2 cm1 in
Jun
5 °C42 °F
10 °C49 °F
14 km/h9 mph
83 mm3.3 in
0 cm0 in
Jul
9 °C49 °F
13 °C55 °F
13 km/h8 mph
63 mm2.5 in
0 cm0 in
Aug
14 °C57 °F
16 °C61 °F
16 km/h10 mph
81 mm3.2 in
0 cm0 in
Sep
12 °C54 °F
15 °C59 °F
19 km/h12 mph
109 mm4.3 in
0 cm0 in
OctCurrent
7 °C44 °F
9 °C49 °F
24 km/h15 mph
97 mm3.8 in
5 cm2 in
Nov
0 °C31 °F
3 °C38 °F
26 km/h16 mph
82 mm3.2 in
30 cm12 in
Dec
-7 °C19 °F
-2 °C28 °F
27 km/h17 mph
84 mm3.3 in
63 cm25 in