September weather forecastPeoria, AZ
September
Weather in September
As September rolls into Peoria, summer's intensity begins to soften, paving the way for autumn's arrival. Noteworthy changes in weather pattern emerge, especially regarding a reduction in daylight hours and light changes in temperature. Columbus Day weekend goers might want to pack an umbrella given an average of 1.1" (28mm) of rainfall distributed over seven days. Though September does witness some rainfall, it is notably less cloudy than previous months, allowing for greater visibility and clearer skies. The incidence of lower winds, offsetting any abrupt weather transitions, helps maintain the overall pleasantness of this period.Temperature
With the arrival of September, Peoria notices a mild change in the average high-temperature, sliding from August's 100.9°F (38.3°C) to a still very hot 95°F (35°C). Throughout September, Peoria anticipates an average low-temperature of 77.4°F (25.2°C).Humidity
The average relative humidity in September in Peoria is 30%.Rainfall
In Peoria, during September, the rain falls for 6.7 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Peoria, during the entire year, the rain falls for 59.7 days and collects up to 8.23" (209mm) of precipitation.Daylight
The average length of the day in September in Peoria, Arizona, is 12h and 22min.On the first day of the month, sunrise is at 6:03 am and sunset at 6:53 pm. On the last day of September, in Peoria, sunrise is at 6:23 am and sunset at 6:14 pm MST.
Sunshine
The average sunshine in September in Peoria, Arizona, is 9.7h.UV index
The average daily maximum UV index in September in Peoria is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 suggests this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Peoria, AZ
- Average high temperature in September: 95°F
The warmest month (with the highest average high temperature) is July (101.8°F).
The month with the lowest average high temperature is December (61.9°F).
- Average low temperature in September: 77.4°F
The month with the highest average low temperature is August (83.7°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).
Average pressure in September
Peoria, AZ
- Average pressure in September: 29.86"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Peoria, AZ
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are April and May (6.6mph).
The calmest month (with the lowest average wind speed) is December (4.6mph).
Average humidity in September
Peoria, AZ
- Average humidity in September: 30%
The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (17%).
Average rainfall in September
Peoria, AZ
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is August (1.18").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Peoria, AZ
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is July (10.7 days).
The month with the least rainy days is June (1.1 days).
Average daylight in September /
Average sunshine in September
Peoria, AZ
- Average daylight in September: 12h and 24min
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 42min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Peoria, AZ
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is May (28.6 days).
The month with the least sunshine days is August (15.9 days).
Average UV index in September
Peoria, AZ
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Peoria, AZ
- Average cloud cover in September: 9
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Peoria, 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).
