Climate and monthly weather forecastFort Simpson, Canada
Climate and monthly weather forecast
Weather in January
January, like December, is another arctic cold winter month in Fort Simpson, Canada, with an average temperature varying between -24.8°C (-12.6°F) and -17.9°C (-0.2°F). January, with its high-temperature average of -17.9°C (-0.2°F) and a low-temperature average of -24.8°C (-12.6°F), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Fort Simpson, is an extremely cold month, with temperature in the range of an average low of -22.5°C (-8.5°F) and an average high of -14.2°C (6.4°F). Fort Simpson in February observes a minor temperature shift, with average high-temperatures adjusting from a polar cold -17.9°C (-0.2°F) in January to a frigid cold -14.2°C (6.4°F). Weather in February »Weather in March
The first month of the spring, March, is a freezing cold month in Fort Simpson, Canada, with temperature in the range of an average low of -17.5°C (0.5°F) and an average high of -8.9°C (16°F). As Fort Simpson welcomes March, the average high-temperature sees a rise, transitioning from a frigid cold -14.2°C (6.4°F) in February to a subzero cold -8.9°C (16°F). Weather in March »Weather in April
April in Fort Simpson, Canada, is an icy spring month, with an average temperature varying between 0.8°C (33.4°F) and -6.7°C (19.9°F). Fort Simpson's transition into April marks a considerable rise in the average high-temperature, moving up from a subzero cold -8.9°C (16°F) in March to a cold 0.8°C (33.4°F). Weather in April »Weather in May
May, the last month of the spring in Fort Simpson, is a refreshing month, with an average temperature varying between 15.1°C (59.2°F) and 4.2°C (39.6°F). An increase in the average high-temperature marks May, surging from April's cold 0.8°C (33.4°F) to a moderate 15.1°C (59.2°F). Weather in May »Weather in June
June, the first month of the summer in Fort Simpson, is a pleasant month, with an average temperature ranging between max 21.9°C (71.4°F) and min 10.1°C (50.2°F). The shift into June brings an increase in the average high-temperature, moving from a refreshing 15.1°C (59.2°F) in May to a pleasant 21.9°C (71.4°F). Weather in June »Weather in July
July in Fort Simpson, Canada, is a warm summer month, with an average temperature ranging between min 12°C (53.6°F) and max 24°C (75.2°F). July is the month when Fort Simpson sees the highest average temperatures, with a high of 24°C (75.2°F) and a low of 12°C (53.6°F). Weather in July »Weather in August
August, the last month of the summer in Fort Simpson, is also an agreeable month, with temperature in the range of an average low of 10°C (50°F) and an average high of 21.2°C (70.2°F). The advent of August brings an average high-temperature of a pleasant 21.2°C (70.2°F), almost identical to the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Fort Simpson, is also a moderate month, with an average temperature varying between 4.6°C (40.3°F) and 13.9°C (57°F). September comes with a decrease in the average high-temperature, falling from an agreeable 21.2°C (70.2°F) in August to a moderate 13.9°C (57°F). Weather in September »Weather in October
October, like September, in Fort Simpson, Canada, is a wintry autumn month, with an average temperature fluctuating between 2.6°C (36.7°F) and -3.1°C (26.4°F). October's onset is marked by a clear temperature decrease, falling from a mild 13.9°C (57°F) in September to an icy 2.6°C (36.7°F). Weather in October »Weather in November
The last month of the autumn, November, is also a frigid cold month in Fort Simpson, Canada, with an average temperature varying between -16°C (3.2°F) and -10.7°C (12.7°F). The start of November is characterized by a significant decrease in the average high-temperature, moving from a wintry 2.6°C (36.7°F) in October to an extremely cold -10.7°C (12.7°F). Weather in November »Weather in December
December, the first month of the winter in Fort Simpson, is also an arctic cold month, with an average temperature ranging between min -23.5°C (-10.3°F) and max -17.4°C (0.7°F). The start of December comes with a reduction in the average high-temperature, receding from a frigid cold -10.7°C (12.7°F) in November to an arctic cold -17.4°C (0.7°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Fort Simpson, Canada
The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (-17.9°C).
- Average low temperature in January:
-24.8°C - Average low temperature in February:
-22.5°C - Average low temperature in March:
-17.5°C - Average low temperature in April:
-6.7°C - Average low temperature in May:
4.2°C - Average low temperature in June:
10.1°C
The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is January (-24.8°C).
Average pressure
Fort Simpson, Canada
- Average pressure in January:
1020.1mbar - Average pressure in February:
1020.3mbar - Average pressure in March:
1019.1mbar - Average pressure in April:
1016.7mbar - Average pressure in May:
1015mbar - Average pressure in June:
1010.1mbar
- Average pressure in July:
1010.5mbar - Average pressure in August:
1010mbar - Average pressure in September:
1011mbar - Average pressure in October:
1013.2mbar - Average pressure in November:
1015.5mbar - Average pressure in December:
1018.8mbar
The month with the highest atmospheric pressure is February (1020.3mbar).
The month with the lowest atmospheric pressure is August (1010mbar).
Average wind speed
Fort Simpson, Canada
- Average wind speed in January:
7.8km/h - Average wind speed in February:
7.7km/h - Average wind speed in March:
8.2km/h - Average wind speed in April:
8.9km/h - Average wind speed in May:
9.6km/h - Average wind speed in June:
9.2km/h
- Average wind speed in July:
8.8km/h - Average wind speed in August:
8.9km/h - Average wind speed in September:
9km/h - Average wind speed in October:
8.1km/h - Average wind speed in November:
7.7km/h - Average wind speed in December:
7.5km/h
The windiest month (with the highest average wind speed) is May (9.6km/h).
The calmest month (with the lowest average wind speed) is December (7.5km/h).
Average humidity
Fort Simpson, Canada
The month with the highest relative humidity is January (96%).
The month with the lowest relative humidity is June (53%).
Average rainfall
Fort Simpson, Canada
The wettest month (with the highest rainfall) is August (37mm).
The driest month (with the least rainfall) is December (4mm).
Average rainfall days
Fort Simpson, Canada
- Average rainfall days in January:
0.6 days - Average rainfall days in February:
0.7 days - Average rainfall days in March:
2.8 days - Average rainfall days in April:
5.8 days - Average rainfall days in May:
8.3 days - Average rainfall days in June:
10.4 days
- Average rainfall days in July:
10.9 days - Average rainfall days in August:
11.1 days - Average rainfall days in September:
8.8 days - Average rainfall days in October:
3.9 days - Average rainfall days in November:
0.2 days - Average rainfall days in December:
0.8 days
The month with the highest number of rainy days is August (11.1 days).
The month with the least rainy days is November (0.2 days).
Average snowfall
Fort Simpson, Canada
The month with the highest snowfall is April (102mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days
Fort Simpson, Canada
- Average snowfall days in January:
12.3 days - Average snowfall days in February:
10.5 days - Average snowfall days in March:
13 days - Average snowfall days in April:
12 days - Average snowfall days in May:
2 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0.1 days - Average snowfall days in September:
0.6 days - Average snowfall days in October:
7.8 days - Average snowfall days in November:
8.5 days - Average snowfall days in December:
9 days
The month with the highest number of snowfall days is March (13 days).
The month with the least snowfall days is July (0 days).
Average daylight / Average sunshine
Fort Simpson, Canada
- Average daylight in January:
6h and 24min - Average daylight in February:
9h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 54min - Average daylight in May:
17h and 42min - Average daylight in June:
19h and 30min
- Average daylight in July:
18h and 30min - Average daylight in August:
15h and 48min - Average daylight in September:
12h and 54min - Average daylight in October:
9h and 54min - Average daylight in November:
7h and 6min - Average daylight in December:
5h and 24min
The month with the longest days is June (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 5h and 24min).
- Average sunshine in January:
2h and 12min - Average sunshine in February:
3h and 12min - Average sunshine in March:
3h and 30min - Average sunshine in April:
4h and 12min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
10h and 24min - Average sunshine in September:
7h and 30min - Average sunshine in October:
4h and 54min - Average sunshine in November:
3h and 6min - Average sunshine in December:
2h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days
Fort Simpson, Canada
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
19 days - Average sunshine days in March:
18.7 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
19.8 days - Average sunshine days in June:
17.7 days
- Average sunshine days in July:
18.3 days - Average sunshine days in August:
17.9 days - Average sunshine days in September:
19.5 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
22.6 days - Average sunshine days in December:
23.5 days
The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is April (14.3 days).
Average UV index
Fort Simpson, Canada
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover
Fort Simpson, Canada
The months with the most cloud cover are March and April (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility
Fort Simpson, Canada
The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January, February, March and December (4km).








