June weather forecastSimpsonville, MD

June

Weather in June

The first month of the summer, June, is a warm month in Simpsonville, Maryland, with an average temperature varying between 64°F (17.8°C) and 80.6°F (27°C).

Temperature

Simpsonville's weather in June shows a minor rise in the average high-temperature, moving slightly up from May's pleasant 72.7°F (22.6°C) to a moderately hot 80.6°F (27°C). Throughout June, the temperature falls to an average low of 64°F (17.8°C).

Heat index

The heat index in June is estimated at 84.2°F (29°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

The average relative humidity in June is 74%.

Rainfall

In Simpsonville, in June, during 15.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Simpsonville, during the entire year, the rain falls for 159.3 days and collects up to 30.31" (770mm) of precipitation.

Snowfall

In Simpsonville, snow does not fall in April through October.

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 5:42 am and sunset at 8:28 pm. On the last day of June, sunrise is at 5:44 am and sunset at 8:37 pm EDT.

Sunshine

The average sunshine in June is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in June, in Simpsonville, records 80.6°F (27°C), while the low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in June is estimated at 84.2°F (29°C).

In Simpsonville, the average relative humidity in June is 74%.

In Simpsonville, during June, the rain falls for 15.5 days and regularly aggregates up to 2.6" (66mm) of precipitation.

April through October are months without snowfall.

With an average of 14h and 54min of daylight, June has the longest days of the year.

The average day length in June is 14h and 53min.

In June, on the first day of the month, sunrise is at 5:42 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:37 pm EDT.

In June, the average sunshine duration in Simpsonville is 10.3h.

The months with the highest UV index are May through August, with an average maximum UV index of 6.

In Simpsonville, the average daily maximum UV index in June is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M June J A S O N D

May

June

Jul

Average high temperature

72.7°F

80.6°F

85.8°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.4mph

6.8mph

5.9mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

15.5

17.3

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

12.3

11.1

Average UV index

Average cloud cover

Average visibility

Average temperature in June
Simpsonville, MD

Average high temperature in June: 80.6°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).

Average low temperature in June: 64°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in June
Simpsonville, MD

Average pressure in June: 29.94"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in June
Simpsonville, MD

Average wind speed in June: 6.3mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in June
Simpsonville, MD

Average humidity in June: 74%

The months with the highest relative humidity are May and October (77%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in June
Simpsonville, MD

Average rainfall in June: 2.6"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in June
Simpsonville, MD

Average rainfall days in June: 15.5 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in June
Simpsonville, MD

Average snowfall in June: 0"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in June
Simpsonville, MD

Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (4.6 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
Simpsonville, 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 30min).

Average sunshine in June: 10h and 18min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).

Average sunshine days in June
Simpsonville, MD

Average sunshine days in June: 12.3 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).

Average UV index in June
Simpsonville, 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
Simpsonville, 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 29).

Average visibility in June
Simpsonville, MD

Average visibility in June: 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).