Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
As Rockville welcomes June, the average high-temperature sees a modest rise, transitioning from 78.1°F (25.6°C) in May to a still moderately hot 85.6°F (29.8°C). Rockville encounters an average low-temperature of 65.3°F (18.5°C) during June nights.Heat index
In June, the average heat index is computed to be a fiery hot 95°F (35°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In June, the average relative humidity is 70%.Rainfall
In June, the rain falls for 13.9 days. Throughout June, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 151.1 rainfall days, and 26.22" (666mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Rockville.Daylight
The month with the longest days is June, with an average of 14h and 42min of daylight.On the first day of June, sunrise is at 5:50 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:36 pm EDT.
Sunshine
In June, the average sunshine is 10.4h.UV index
In Rockville, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 6 in June transforms into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in June?
What is the average humidity in June?
How much does it rain in June?
When it does not snow?
When are the longest days?
How many hours of daylight does Rockville have in June?
What time are sunrise and sunset in June?
How long on average sun shines in June?
How high is the UV index in June?
Average temperature in June
Rockville, VA
- Average high temperature in June: 85.6°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in June: 65.3°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in June
Rockville, VA
- Average pressure in June: 29.95"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in June
Rockville, VA
- Average wind speed in June: 5.9mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in June
Rockville, VA
- Average humidity in June: 70%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (68%).
Average rainfall in June
Rockville, VA
- Average rainfall in June: 2.24"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in June
Rockville, VA
- Average rainfall days in June: 13.9 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in June
Rockville, VA
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Rockville, VA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Rockville, VA
- Average daylight in June: 14h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in June: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in June
Rockville, VA
- Average sunshine days in June: 14.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in June
Rockville, VA
- Average UV index in June: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in June
Rockville, VA
- Average cloud cover in June: 33
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in June
Rockville, VA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Rockville, Virginia, USA
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