Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The weather during September records an average high-temperature of a still hot 86°F (30°C), closely mirroring the preceding month. The average nighttime temperature lowers to a comfortable 67.3°F (19.6°C) throughout September.Heat index
During September, the heat index is computed to be a very hot 96.8°F (36°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In Montrose, the average relative humidity in September is 72%.Rainfall
In September, the rain falls for 12.8 days. Throughout September, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 158.8 rainfall days, and 40.67" (1033mm) of precipitation is accumulated.Snowfall
In Montrose, snow does not fall in April through October and December.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:40 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:51 pm CDT.
Sunshine
The average sunshine in September is 9.9h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Montrose have in September?
What is the UV index reading in September?
Average temperature in September
Montrose, AR
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in September: 67.3°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in September
Montrose, AR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Montrose, AR
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Montrose, AR
- Average humidity in September: 72%
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Montrose, AR
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is November (2.44").
Average rainfall days in September
Montrose, AR
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.3 days).
Average snowfall in September
Montrose, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Montrose, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Montrose, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Montrose, AR
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (12 days).
Average UV index in September
Montrose, AR
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Montrose, AR
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Montrose, 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).
Montrose, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location