October weather forecast
Markham, Canada

October

Weather in October

October in Markham witnesses a notable shift in weather as autumn truly sets in with temperatures continuing their downward trend. From September’s mild warmth, October brings a crisper chill. With the temperatures now dipping further to 13.2°C (55.8°F), it becomes more noticeable that the year is heading towards its colder months. The rainfall experienced in October, averaging at 68mm (2.68"), is substantial. October’s cool weather brings out scenic beauty as leaves change color and fall season takes center stage.

Temperature

In Markham, the beginning of October is marked by a lowered average high-temperature, shifting from September's agreeable 20.6°C (69.1°F) to a moderate 13.2°C (55.8°F). Markham's nights in October experience an average temperature drop to a chilly 7.4°C (45.3°F).

Humidity

In October, the average relative humidity is 78%.

Rainfall

In Markham, in October, it is raining for 15.9 days, with typically 68mm (2.68") of accumulated precipitation. Throughout the year, in Markham, there are 157.1 rainfall days, and 653mm (25.71") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Markham. October is the first month it typically snows in Markham, Canada. Throughout October, in the average 0.5 snowfall days, it receives 5mm (0.2") of snow. In Markham, during the entire year, snow falls for 51.3 days and aggregates up to 415mm (16.34") of snow.

Daylight

The average length of the day in October is 10h and 59min.
On the first day of the month, sunrise is at 7:15 am and sunset at 6:57 pm. On the last day of October, in Markham, sunrise is at 7:53 am and sunset at 6:08 pm EDT.

Sunshine

In October, the average sunshine in Markham is 4.7h.

UV index

In Markham, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 2 in October translates into the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.

Frequently asked questions

What is the usual temperature for Markham in October?
In October, in Markham, the average high-temperature is 13.2°C (55.8°F), and the average low-temperature is 7.4°C (45.3°F).
What is the average humidity in October in Markham?
In October, the average relative humidity is 78%.
How much does it rain in Markham in October?
In October, in Markham, the rain falls for 15.9 days. Throughout October, 68mm (2.68") of precipitation is accumulated.
When does it start to snow in Markham?
October is the first month it typically snows in Markham, Canada. Throughout October, in the average 0.5 snowfall days, it receives 5mm (0.2") of snow.
What is the average length of the day in October in Markham?
In Markham, the average day length in October is 10h and 59min.
When are sunrise and sunset in October in Markham?
In October, on the first day of the month, sunrise is at 7:15 am and sunset at 6:57 pm. On the last day of the month, in Markham, sunrise is at 7:53 am and sunset at 6:08 pm EDT.
How many hours of sunshine does Markham have in October?
In October, the average sunshine duration in Markham, Canada, is 4.7h.
What is the UV index reading in October in Markham?
The average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in October - Markham, Canada
Average temperature in October
Markham, Canada
  • Average high temperature in October: 13.2°C

The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-3.2°C).

  • Average low temperature in October: 7.4°C

The months with the highest average low temperature are July and August (16.6°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).

Average pressure in October - Markham, Canada
Average pressure in October
Markham, Canada
  • Average pressure in October: 1015.4mbar

The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013mbar).

Average wind speed in October - Markham, Canada
Average wind speed in October
Markham, Canada
  • Average wind speed in October: 15.3km/h

The windiest month (with the highest average wind speed) is January (17.5km/h).
The calmest month (with the lowest average wind speed) is July (10.8km/h).

Average humidity in October - Markham, Canada
Average humidity in October
Markham, Canada
  • Average humidity in October: 78%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).

Average rainfall in October - Markham, Canada
Average rainfall in October
Markham, Canada
  • Average rainfall in October: 68mm

The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is February (30mm).

Average rainfall days in October - Markham, Canada
Average rainfall days in October
Markham, Canada
  • Average rainfall days in October: 15.9 days

The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in October - Markham, Canada
Average snowfall in October
Markham, Canada
  • Average snowfall in October: 5mm

The month with the highest snowfall is January (118mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in October - Markham, Canada
Average snowfall days in October
Markham, Canada
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October / Average sunshine in October - Markham, Canada
Average daylight in October /
Average sunshine in October
Markham, Canada
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in October: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in October - Markham, Canada
Average sunshine days in October
Markham, Canada
  • Average sunshine days in October: 12.7 days

The month with the most sunshine days is March (14.9 days).
The month with the least sunshine days is August (9 days).

Average UV index in October - Markham, Canada
Average UV index in October
Markham, Canada
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in October - Markham, Canada
Average cloud cover in October
Markham, Canada
  • Average cloud cover in October: 49

The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in October - Markham, Canada
Average visibility in October
Markham, Canada
  • Average visibility in October: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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