Climate Insights for Thompson Lake

North Slave Region, Northwest Territories, Canada

Hottest
July
23°C peak73°F peak
Coldest
February
-29°C low-20°F low
Wettest
July
55 mm rain2.2 in rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Thompson Lake is cold. The average annual temperature is -4°C and approximately 301 mm of precipitation falls per year. July is the wettest month, receiving around 55 mm of rainfall. Thompson Lake is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are February, January, December, when temperatures can drop to -29°C. Snowfall occurs from January to December, with around 96cm accumulating over the season.The climate in Thompson Lake is cold. The average annual temperature is 25°F and approximately 11.8 in of precipitation falls per year. July is the wettest month, receiving around 2.2 in of rainfall. Thompson Lake is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are February, January, December, when temperatures can drop to -20°F. Snowfall occurs from January to December, with around 38in accumulating over the season.

Temperature

-30°-20°-10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: -20°Average: -24°Min: -27°FebMax: -20°Average: -25°Min: -29°MarMax: -11°Average: -17°Min: -22°AprMax: -1°Average: -7°Min: -12°MayMax: 14°Average: 7°Min: 1°JunMax: 21°Average: 15°Min: 10°JulMax: 23°Average: 17°Min: 12°AugMax: 20°Average: 15°Min: 11°SepMax: 13°Average: 9°Min: 5°OctMax: 3°Average: 0°Min: -2°NovMax: -9°Average: -12°Min: -15°DecMax: -19°Average: -23°Min: -26°
Max
Average
Min
-20°F-10°F0°F10°F20°F30°F40°F50°F60°F70°F80°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: -4°FAverage: -10°FMin: -16°FFebMax: -4°FAverage: -13°FMin: -20°FMarMax: 12°FAverage: 1°FMin: -8°FAprMax: 31°FAverage: 20°FMin: 11°FMayMax: 57°FAverage: 45°FMin: 34°FJunMax: 70°FAverage: 59°FMin: 49°FJulMax: 73°FAverage: 63°FMin: 54°FAugMax: 69°FAverage: 59°FMin: 51°FSepMax: 56°FAverage: 48°FMin: 42°FOctMax: 37°FAverage: 32°FMin: 28°FNovMax: 16°FAverage: 10°FMin: 5°FDecMax: -3°FAverage: -9°FMin: -15°F
Max
Average
Min

Thompson Lake has a wide annual temperature range, spanning 52°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 23°C with a mean of 17°C. February brings the harshest conditions, with lows dropping to -29°C and an average temperature of -25°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 14°C shift in average temperatures.Thompson Lake has a wide annual temperature range, spanning 93°F from the coldest to warmest months. July is the warmest month, though highs remain moderate at 73°F with a mean of 63°F. February brings the harshest conditions, with lows dropping to -20°F and an average temperature of -13°F. On average, daily temperatures fluctuate by about 16°F between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 25°F shift in average temperatures.

Precipitation

0mm25mm50mm75mm100mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 15mmSnow: 14mmFebPrecipitation: 10mmSnow: 10mmMarPrecipitation: 13mmSnow: 13mmAprPrecipitation: 12mmSnow: 10mmMayPrecipitation: 23mmSnow: 5mmJunPrecipitation: 38mmSnow: 0mmJulPrecipitation: 55mmSnow: 0mmAugPrecipitation: 49mmSnow: 0mmSepPrecipitation: 28mmSnow: 1mmOctPrecipitation: 23mmSnow: 10mmNovPrecipitation: 20mmSnow: 19mmDecPrecipitation: 14mmSnow: 14mm
Precipitation
Snow
0in2in4in6in8inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 0.6inSnow (in): 6inFebPrecipitation: 0.4inSnow (in): 4inMarPrecipitation: 0.5inSnow (in): 5inAprPrecipitation: 0.5inSnow (in): 4inMayPrecipitation: 0.9inSnow (in): 2inJunPrecipitation: 1.5inSnow (in): 0inJulPrecipitation: 2.2inSnow (in): 0inAugPrecipitation: 1.9inSnow (in): 0inSepPrecipitation: 1.1inSnow (in): 0inOctPrecipitation: 0.9inSnow (in): 4inNovPrecipitation: 0.8inSnow (in): 8inDecPrecipitation: 0.6inSnow (in): 5in
Precipitation
Snow (in)

Thompson Lake is a quite dry location, receiving approximately 301 mm of precipitation annually, which averages out to around 25 mm per month. The wettest month is July, averaging 55 mm of rainfall. August and June also tend to see above-average precipitation. The driest month is February, with just 10 mm. That's 45 mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 96cm accumulating over the season. November typically sees the most snow at around 19cm.Thompson Lake is a quite dry location, receiving approximately 11.8 in of precipitation annually, which averages out to around 1 in per month. The wettest month is July, averaging 2.2 in of rainfall. August and June also tend to see above-average precipitation. The driest month is February, with just 0.4 in. That's 1.8 in less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 38in accumulating over the season. November typically sees the most snow at around 8in.

Wind

0km/h5km/h10km/h15km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 12km/hFebWind Speed: 11km/hMarWind Speed: 12km/hAprWind Speed: 13km/hMayWind Speed: 14km/hJunWind Speed: 13km/hJulWind Speed: 12km/hAugWind Speed: 12km/hSepWind Speed: 13km/hOctWind Speed: 13km/hNovWind Speed: 12km/hDecWind Speed: 12km/h
Wind Speed
0mph5mph10mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 7mphFebWind Speed: 7mphMarWind Speed: 8mphAprWind Speed: 8mphMayWind Speed: 9mphJunWind Speed: 8mphJulWind Speed: 8mphAugWind Speed: 7mphSepWind Speed: 8mphOctWind Speed: 8mphNovWind Speed: 7mphDecWind Speed: 7mph
Wind Speed

Thompson Lake is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.Thompson Lake is moderately windy, with an average annual wind speed of 8mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is May, averaging 9mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in February, with average winds dropping to 7mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2mph between the calmest and windiest months.

Best Time to Visit

Jan-24°-10°F
Feb-25°-13°F
Mar-17°1°F
Apr-7°20°F
May7°45°F
Jun15°59°F
Jul17°63°F
Aug15°59°F
Sep9°48°F
Oct0°32°F
Nov-12°10°F
Dec-23°-9°F

The best time to visit Thompson Lake is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 47 mm per month. By contrast, February can be quite cold with temperatures dropping to -29°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Thompson Lake is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 61°F with modest rainfall averaging 1.9 in per month. By contrast, February can be quite cold with temperatures dropping to -20°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Thompson Lake 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 Thompson Lake 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
-27 °C-16 °F
-20 °C-4 °F
12 km/h7 mph
15 mm0.6 in
14 cm6 in
Feb
-29 °C-20 °F
-20 °C-4 °F
11 km/h7 mph
10 mm0.4 in
10 cm4 in
Mar
-22 °C-8 °F
-11 °C12 °F
12 km/h8 mph
13 mm0.5 in
13 cm5 in
Apr
-12 °C11 °F
-1 °C31 °F
13 km/h8 mph
12 mm0.5 in
10 cm4 in
May
1 °C34 °F
14 °C57 °F
14 km/h9 mph
23 mm0.9 in
5 cm2 in
Jun
10 °C49 °F
21 °C70 °F
13 km/h8 mph
38 mm1.5 in
0 cm0 in
Jul
12 °C54 °F
23 °C73 °F
12 km/h8 mph
55 mm2.2 in
0 cm0 in
Aug
11 °C51 °F
20 °C69 °F
12 km/h7 mph
49 mm1.9 in
0 cm0 in
Sep
5 °C42 °F
13 °C56 °F
13 km/h8 mph
28 mm1.1 in
1 cm0 in
OctCurrent
-2 °C28 °F
3 °C37 °F
13 km/h8 mph
23 mm0.9 in
10 cm4 in
Nov
-15 °C5 °F
-9 °C16 °F
12 km/h7 mph
20 mm0.8 in
19 cm8 in
Dec
-26 °C-15 °F
-19 °C-3 °F
12 km/h7 mph
14 mm0.6 in
14 cm5 in