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 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
Start of September in Gilbert brings a slight shift in the average high-temperature, dipping a bit from August's fiery hot 100.9°F (38.3°C) to a still sweltering 95.4°F (35.2°C). Throughout September, Gilbert's nights cool down to an average of 77.4°F (25.2°C).Humidity
The average relative humidity in September in Gilbert is 31%.Rainfall
In September, the rain falls for 7.4 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. In Gilbert, during the entire year, the rain falls for 60.2 days and collects up to 7.91" (201mm) of precipitation.Daylight
In September, the average length of the day in Gilbert is 12h and 22min.On the first day of September, sunrise is at 6:01 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 6:12 pm MST.
Sunshine
In Gilbert, Arizona, the average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Gilbert in September?
What is the average humidity in September in Gilbert?
How much does it rain in Gilbert in September?
How many hours of daylight does Gilbert have in September?
What time are sunrise and sunset in September in Gilbert?
How long on average sun shines in September in Gilbert?
How high is the UV index in September in Gilbert?
Average temperature in September
Gilbert, AZ
- Average high temperature in September: 95.4°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 (62.4°F).
- Average low temperature in September: 77.4°F
The month with the highest average low temperature is August (83.8°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).
Average pressure in September
Gilbert, AZ
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
Gilbert, AZ
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are April and May (6.4mph).
The calmest month (with the lowest average wind speed) is December (4.5mph).
Average humidity in September
Gilbert, AZ
- Average humidity in September: 31%
The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (17%).
Average rainfall in September
Gilbert, AZ
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Gilbert, AZ
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is July (10.6 days).
The month with the least rainy days is June (1.2 days).
Average daylight in September /
Average sunshine in September
Gilbert, AZ
- 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 4min
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
Gilbert, AZ
- Average sunshine days in September: 20 days
The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (17.6 days).
Average UV index in September
Gilbert, 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
Gilbert, AZ
- Average cloud cover in September: 10
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
Gilbert, 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).
Gilbert, Arizona, USA
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