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 arrival of September sees an average high-temperature of a still hot 88.7°F (31.5°C), hardly diverging from August's 93.6°F (34.2°C). Throughout September, the average low-temperature in Oro Valley records at a pleasant 70.9°F (21.6°C).Humidity
The average relative humidity in September is 39%.Rainfall
In Oro Valley, during September, the rain falls for 10.1 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Oro Valley, Arizona, during the entire year, the rain falls for 73.3 days and collects up to 11.22" (285mm) of precipitation.Snowfall
January, March through December are months without snowfall in Oro Valley, Arizona.Daylight
The average length of the day in September is 12h and 21min.On the first day of September in Oro Valley, sunrise is at 5:59 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 6:09 pm MST.
Sunshine
In September, the average sunshine is 9.6h.UV index
In Oro Valley, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Oro Valley in September?
What is the average humidity in September in Oro Valley?
How many days does it rain in September in Oro Valley?
When it does not snow in Oro Valley?
How many hours of daylight does Oro Valley have in September?
What time are sunrise and sunset in September in Oro Valley?
How long on average sun shines in September in Oro Valley?
What is the UV index reading in September in Oro Valley?
Average temperature in September
Oro Valley, AZ
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is June (95.5°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in September: 70.9°F
The months with the highest average low temperature are July and August (76.6°F).
The coldest month (with the lowest average low temperature) is December (42.8°F).
Average pressure in September
Oro Valley, AZ
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Oro Valley, AZ
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is May (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Oro Valley, AZ
- Average humidity in September: 39%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (20%).
Average rainfall in September
Oro Valley, AZ
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is July (2.68").
The driest months (with the least rainfall) are April and May (0.24").
Average rainfall days in September
Oro Valley, AZ
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is May (2.6 days).
Average snowfall in September
Oro Valley, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Oro Valley, AZ
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Oro Valley, 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: 9h and 4min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Oro Valley, AZ
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is May (28.1 days).
The month with the least sunshine days is July (10 days).
Average UV index in September
Oro Valley, AZ
- Average UV index in September: 7
The month with the highest UV index is June (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Oro Valley, AZ
- Average cloud cover in September: 14
The months with the most cloud cover are July and December (Cloud cover 21).
The months with the least cloud cover are May and June (Cloud cover 8).
Average visibility in September
Oro Valley, 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).
Oro Valley, Arizona, USA
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