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
Rockville's June weather indicates a minor ascent in high-temperatures, adjusting from 73.9°F (23.3°C) in May to a still moderately hot 82°F (27.8°C). Rockville's nighttime temperature in June drops to an average of 63.7°F (17.6°C).Heat index
June's mean heat index is calculated to be a hot 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Realize that the values for the heat index are set for shaded places and light winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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 June, the average relative humidity in Rockville is 73%.Rainfall
In Rockville, in June, during 15.9 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Rockville, Maryland, during the entire year, the rain falls for 156.4 days and collects up to 30.79" (782mm) of precipitation.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 54min of daylight.On the first day of the month, sunrise is at 5:44 am and sunset at 8:28 pm. On the last day of June, in Rockville, Maryland, sunrise is at 5:46 am and sunset at 8:38 pm EDT.
Sunshine
In June, the average sunshine in Rockville is 10.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Rockville. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 6 in June leads to these recommendations:
Fend off overexposure. Sun protection is vital. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What are the temperatures in Rockville in June?
What is the average humidity in June in Rockville?
How much does it rain in Rockville in June?
When it does not snow in Rockville?
When are the longest days in Rockville?
How many hours of daylight does Rockville have in June?
What time are sunrise and sunset in June in Rockville?
How long on average sun shines in June in Rockville?
What are the months with the highest UV index in Rockville?
What is the UV index intensity in June in Rockville?
Average temperature in June
Rockville, MD
- Average high temperature in June: 82°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 (39°F).
- Average low temperature in June: 63.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in June
Rockville, MD
- 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, MD
- Average wind speed in June: 5.8mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in June
Rockville, MD
- Average humidity in June: 73%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in June
Rockville, MD
- Average rainfall in June: 2.48"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in June
Rockville, MD
- Average rainfall days in June: 15.9 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in June
Rockville, MD
- Average snowfall in June: 0"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Rockville, MD
- Average snowfall days in June: 0 days
The months with the highest number of snowfall days are January and February (5.3 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, MD
- Average daylight in June: 14h and 5min
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 30min).
- Average sunshine in June: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in June
Rockville, MD
- Average sunshine days in June: 12.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (12 days).
Average UV index in June
Rockville, MD
- Average UV index in June: 6
The months with the highest UV index are May, 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 June
Rockville, MD
- Average cloud cover in June: 33
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in June
Rockville, MD
- 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, Maryland, USA
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