June weather forecastCharlestown, MD
June
Weather in June
The first month of the summer, June, is a warm month in Charlestown, Maryland, with an average temperature fluctuating between 79.5°F (26.4°C) and 62.4°F (16.9°C).Temperature
In June, the average high-temperature marginally rises from an agreeable 71.6°F (22°C) in May to a moderately hot 79.5°F (26.4°C). An average low-temperature of 62.4°F (16.9°C) is common during the nights of June.Humidity
May and June, with an average relative humidity of 79%, are the most humid months.Rainfall
In Charlestown, in June, it is raining for 15.3 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, in Charlestown, there are 150.3 rainfall days, and 29.25" (743mm) of precipitation is accumulated.Snowfall
April, June through October are months without snowfall.Ocean temperature
In Charlestown, in June, the average water temperature is 66.6°F (19.2°C).Note: The majority find it unenjoyable to swim in 66.6°F (19.2°C). Breathing becomes tougher as the water temperature descends under 69.8°F (21°C).
Daylight
June has the longest days of the year, with an average of 14h and 54min of daylight.On the first day of June, sunrise is at 5:38 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:35 pm EDT.
Sunshine
The average sunshine in June is 10.1h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Charlestown, MD
- Average high temperature in June: 79.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in June: 62.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in June
Charlestown, MD
- Average pressure in June: 29.94"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in June
Charlestown, MD
- Average wind speed in June: 6.4mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in June
Charlestown, MD
- Average humidity in June: 79%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall in June
Charlestown, MD
- Average rainfall in June: 2.6"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in June
Charlestown, MD
- Average rainfall days in June: 15.3 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in June
Charlestown, MD
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in June
Charlestown, MD
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average sea temperature in June
Charlestown, MD
- Average sea temperature in June: 66.6°F
The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).
Average daylight in June /
Average sunshine in June
Charlestown, MD
- Average daylight in June: 14h and 54min
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 June: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in June
Charlestown, MD
- Average sunshine days in June: 11.8 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in June
Charlestown, 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
Charlestown, MD
- Average cloud cover in June: 35
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in June
Charlestown, MD
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
