Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Roseville signifies an average high-temperature of a still warm 82.9°F (28.3°C) in August, closely mirroring the 84.2°F (29°C) of July. Despite higher daytime temperatures, nighttime averages fall to a comfortable 61.2°F (16.2°C) in August in Roseville.Heat index
During August, the heat index is evaluated at a tropical 89.6°F (32°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In August, the average relative humidity is 77%.Rainfall
In August, the rain falls for 14.8 days. Throughout August, 1.85" (47mm) of precipitation is accumulated. In Roseville, during the entire year, the rain falls for 154.5 days and collects up to 24.29" (617mm) of precipitation.Snowfall
May through October are months without snowfall in Roseville.Daylight
In August, the average length of the day is 13h and 41min.On the first day of the month, sunrise is at 6:27 am and sunset at 8:41 pm. On the last day of August, sunrise is at 6:56 am and sunset at 8:00 pm EDT.
Sunshine
The month with the most sunshine in Roseville is August, with an average of 10.3h of sunshine.UV index
The average daily maximum UV index in August in Roseville is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, the UV index of 5 transforms into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August in Roseville?
What is the average humidity in August in Roseville?
How much does it rain in Roseville in August?
When it does not snow in Roseville?
What is the average length of the day in August in Roseville?
When is the sunrise / sunset in August in Roseville?
What month has the most sunshine in Roseville?
How many hours of sunshine does Roseville have in August?
How high is the UV index in August in Roseville?
Average temperature in August
Roseville, OH
- Average high temperature in August: 82.9°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in August: 61.2°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in August
Roseville, OH
- Average pressure in August: 30"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Roseville, OH
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in August
Roseville, OH
- Average humidity in August: 77%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in August
Roseville, OH
- Average rainfall in August: 1.85"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in August
Roseville, OH
- Average rainfall days in August: 14.8 days
The months with the highest number of rainy days are May and July (17.4 days).
The months with the least rainy days are February and November (8.4 days).
Average snowfall in August
Roseville, OH
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Roseville, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Roseville, OH
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in August
Roseville, OH
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in August
Roseville, OH
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Roseville, OH
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Roseville, OH
- Average visibility in August: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).
Roseville, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location