August weather forecastRockville, NE
August
Weather in August
August, the last month of the summer in Rockville, is another warm month, with temperature in the range of an average high of 85.3°F (29.6°C) and an average low of 62.8°F (17.1°C).Temperature
The advent of August observes an average high-temperature of a moderately hot 85.3°F (29.6°C), nearly identical to July's 87.1°F (30.6°C). In August, the temperature registers a significant dip to an average of 62.8°F (17.1°C) at night.Heat index
During August, the heat index is estimated at a tropical 91.4°F (33°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
The average relative humidity in August in Rockville is 67%.Rainfall
In Rockville, in August, during 13 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 102.7 rainfall days, and 18.15" (461mm) of precipitation is accumulated.Snowfall
In Rockville, snow does not fall in May through September.Daylight
In August, the average length of the day in Rockville is 13h and 46min.On the first day of the month, sunrise is at 6:31 am and sunset at 8:51 pm. On the last day of August, in Rockville, sunrise is at 7:01 am and sunset at 8:09 pm CDT.
Sunshine
In August, the average sunshine is 10.1h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In August, the maximum UV index of 6 suggests this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rockville, NE
- Average high temperature in August: 85.3°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in August: 62.8°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in August
Rockville, NE
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Rockville, NE
- Average wind speed in August: 8.5mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in August
Rockville, NE
- Average humidity in August: 67%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is October (60%).
Average rainfall in August
Rockville, NE
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in August
Rockville, NE
- Average rainfall days in August: 13 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is December (2.7 days).
Average snowfall in August
Rockville, NE
- Average snowfall in August: 0"
The month with the highest snowfall is December (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Rockville, NE
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Rockville, NE
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in August
Rockville, NE
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is May (14.9 days).
Average UV index in August
Rockville, NE
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Rockville, NE
- Average cloud cover in August: 29
The months with the most cloud cover are January, February and March (Cloud cover 41).
The months with the least cloud cover are July and September (Cloud cover 25).
Average visibility in August
Rockville, NE
- 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).





