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 dawn of September sees an average high-temperature of a moderately hot 83.1°F (28.4°C), subtly contrasting with August's 87.3°F (30.7°C). Lowell's temperature drops to an average low of 64°F (17.8°C) during the nights of September.Heat index
For most parts of September, the heat index is appraised at 84.2°F (29°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
The average relative humidity in September is 48%.Rainfall
In Lowell, in September, during 10.6 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. Throughout the year, there are 82 rainfall days, and 11.85" (301mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Lowell, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 5:55 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 6:05 pm MST.
Sunshine
The average sunshine in September is 10.1h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Lowell?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Lowell have in September?
What is the UV index intensity in September?
Average temperature in September
Lowell, AZ
- Average high temperature in September: 83.1°F
The warmest month (with the highest average high temperature) is June (91°F).
The month with the lowest average high temperature is December (56.1°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).
Average pressure in September
Lowell, AZ
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Lowell, AZ
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Lowell, AZ
- Average humidity in September: 48%
The month with the highest relative humidity is December (49%).
The month with the lowest relative humidity is May (22%).
Average rainfall in September
Lowell, AZ
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are April and May (0.08").
Average rainfall days in September
Lowell, AZ
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is May (2 days).
Average snowfall in September
Lowell, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Lowell, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Lowell, AZ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Lowell, AZ
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is May (28.6 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Lowell, AZ
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Lowell, AZ
- Average cloud cover in September: 16
The month with the most cloud cover is July (Cloud cover 22).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility in September
Lowell, AZ
- 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).
Lowell, Arizona, USA
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