September weather forecast
Montreal, AR

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Weather in September

The first month of the autumn, September, is still a warm month in Montreal, Arkansas, with an average temperature fluctuating between 85.1°F (29.5°C) and 63°F (17.2°C).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a tropical 92.3°F (33.5°C) in August to a warm 85.1°F (29.5°C). During September, Montreal perceives a consistent contrast from the daytime highs, with an average low-temperature of 63°F (17.2°C).

Heat index

September's average heat index is computed to be a hot 93.2°F (34°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

In September, the average relative humidity is 70%.

Rainfall

In September, the rain falls for 12.3 days. Throughout September, 2.68" (68mm) of precipitation is accumulated. In Montreal, during the entire year, the rain falls for 149.7 days and collects up to 35.08" (891mm) of precipitation.

Snowfall

In Montreal, snow does not fall in April through October.

Daylight

In Montreal, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:50 am and sunset at 7:43 pm. On the last day of September, in Montreal, sunrise is at 7:11 am and sunset at 7:02 pm CDT.

Sunshine

In Montreal, the average sunshine in September is 9.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 5 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

Is it hot in Montreal during September?

The high-temperature, in September, in Montreal, is 85.1°F (29.5°C), while the low-temperature averages to 63°F (17.2°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is computed to be 93.2°F (34°C).

What is the average humidity in September in Montreal?

The average relative humidity in September in Montreal, Arkansas, is 70%.

How many days does it rain in September in Montreal?

In Montreal, in September, it is raining for 12.3 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow in Montreal?

April through October are months without snowfall in Montreal, Arkansas.

How many hours of daylight does Montreal have in September?

In September, the average day length is 12h and 23min.

What time are sunrise and sunset in September in Montreal?

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 7:43 pm. On the last day of the month, in Montreal, sunrise is at 7:11 am and sunset at 7:02 pm CDT.

How long on average sun shines in September in Montreal?

In Montreal, Arkansas, the average sunshine duration in September is 9.5h.

What is the UV index intensity in September in Montreal?

The average daily maximum UV index in September in Montreal is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
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 September
Montreal, AR

Average temperature in September - Montreal, AR
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

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Average pressure in September
Montreal, AR

Average pressure in September - Montreal, AR
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Montreal, AR

Average wind speed in September - Montreal, AR
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Montreal, AR

Average humidity in September - Montreal, AR
  • Average humidity in September: 70%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (69%).

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Average rainfall in September
Montreal, AR

Average rainfall in September - Montreal, AR
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in September
Montreal, AR

Average rainfall days in September - Montreal, AR
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in September
Montreal, AR

Average snowfall in September - Montreal, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Montreal, AR

Average snowfall days in September - Montreal, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Montreal, AR

Average daylight in September / Average sunshine in September - Montreal, AR
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 9h and 3min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Montreal, AR

Average sunshine days in September - Montreal, AR
  • Average sunshine days in September: 16.4 days

The months with the most sunshine days are November and December (19.3 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in September
Montreal, AR

Average UV index in September - Montreal, AR
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Montreal, AR

Average cloud cover in September - Montreal, AR
  • Average cloud cover in September: 26

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in September
Montreal, AR

Average visibility in September - Montreal, AR
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Montreal, Arkansas, USA

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