August weather forecastOro Valley, AZ
August
Weather in August
August in Oro Valley witnesses a continued high Average temperature, registering a similar figure of 93.6°F (34.2°C) as observed in July. The monsoon showers peak, leading to increased humidity and a lush green environment. The daylight hours start to recede gradually, signaling the approaching end of summer. In contrast to the previous windy months, wind speeds slacken a bit. The weather in Oro Valley remains balmy and rain-washed in August.Temperature
Oro Valley's average high-temperature in August sits at a still hot 93.6°F (34.2°C), showing little difference from the previous month. Throughout August, Oro Valley witnesses a consistent average low-temperature of 76.6°F (24.8°C).Humidity
In August, the average relative humidity is 39%.Rainfall
In Oro Valley, during August, the rain falls for 13.8 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 73.3 rainfall days, and 11.22" (285mm) of precipitation is accumulated.Snowfall
In Oro Valley, snow does not fall in January, March through December.Daylight
In Oro Valley, the average length of the day in August is 13h and 18min.On the first day of August in Oro Valley, sunrise is at 5:39 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 6:49 pm MST.
Sunshine
The months with the most sunshine are June and August, with an average of 12h of sunshine.UV index
In August, the average daily maximum UV index in Oro Valley is 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: In August, an average UV index of 7 transforms into the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Oro Valley, AZ
- Average high temperature in August: 93.6°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 August: 76.6°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 August
Oro Valley, AZ
- Average pressure in August: 29.89"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 August
Oro Valley, AZ
- Average wind speed in August: 5.6mph
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 August
Oro Valley, AZ
- Average humidity in August: 39%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (20%).
Average rainfall in August
Oro Valley, AZ
- Average rainfall in August: 2.24"
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 August
Oro Valley, AZ
- Average rainfall days in August: 13.8 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 August
Oro Valley, AZ
- Average snowfall in August: 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 August
Oro Valley, AZ
- Average snowfall days in August: 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 August /
Average sunshine in August
Oro Valley, AZ
- Average daylight in August: 13h and 18min
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 August: 12h and 0min
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 August
Oro Valley, AZ
- Average sunshine days in August: 11.9 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 August
Oro Valley, AZ
- Average UV index in August: 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 August
Oro Valley, AZ
- Average cloud cover in August: 17
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 August
Oro Valley, AZ
- Average visibility in August: 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).





