June weather forecast
Riverdale Park, MD

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Weather in June

June, the first month of the summer in Riverdale Park, is also a moderately hot month, with an average temperature varying between 64.6°F (18.1°C) and 81.9°F (27.7°C).

Temperature

The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from 73.9°F (23.3°C) to a still moderately hot 81.9°F (27.7°C). An average temperature of 64.6°F (18.1°C) is recorded during the nights in June.

Heat index

During June, the heat index is evaluated at a tropical 87.8°F (31°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

The average relative humidity in June is 74%.

Rainfall

In Riverdale Park, in June, during 15.5 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Riverdale Park, during the entire year, the rain falls for 157.9 days and collects up to 31.14" (791mm) of precipitation.

Snowfall

May through November are months without snowfall.

Daylight

With an average of 14h and 54min of daylight, June has the longest days of the year in Riverdale Park.
On the first day of June, sunrise is at 5:43 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:37 pm EDT.

Sunshine

In Riverdale Park, the average sunshine in June is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: During June, 6 as the daily maximum UV index converts into the following advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in June?

The high-temperature during June is 81.9°F (27.7°C) and the low-temperature is 64.6°F (18.1°C). In June, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in June?

The average relative humidity in June is 74%.

How many days does it rain in June?

In Riverdale Park, during June, the rain falls for 15.5 days and regularly aggregates up to 2.8" (71mm) of precipitation.

When it does not snow?

May through November are months without snowfall.

When are the longest days in Riverdale Park?

The month with the longest days is June, with an average of 14h and 54min of daylight.

What is the average length of the day in June?

In Riverdale Park, the average day length in June is 14h and 52min.

When are sunrise and sunset in June?

On the first day of June, sunrise is at 5:43 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:37 pm EDT.

How many hours of sunshine does Riverdale Park have in June?

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

What are the months with the highest UV index?

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

What is the UV index intensity in June?

In Riverdale Park, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Riverdale Park, MD

Average temperature in June - Riverdale Park, MD
  • Average high temperature in June: 81.9°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in June: 64.6°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in June
Riverdale Park, MD

Average pressure in June - Riverdale Park, 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
Riverdale Park, MD

Average wind speed in June - Riverdale Park, MD
  • Average wind speed in June: 6.2mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in June
Riverdale Park, MD

Average humidity in June - Riverdale Park, MD
  • Average humidity in June: 74%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall in June
Riverdale Park, MD

Average rainfall in June - Riverdale Park, MD
  • Average rainfall in June: 2.8"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days in June
Riverdale Park, MD

Average rainfall days in June - Riverdale Park, MD
  • Average rainfall days in June: 15.5 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

Average snowfall in June
Riverdale Park, MD

Average snowfall in June - Riverdale Park, MD
  • Average snowfall in June: 0"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in June
Riverdale Park, MD

Average snowfall days in June - Riverdale Park, MD
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (4.1 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
Riverdale Park, MD

Average daylight in June / Average sunshine in June - Riverdale Park, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in June
Riverdale Park, MD

Average sunshine days in June - Riverdale Park, MD
  • Average sunshine days in June: 13 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in June
Riverdale Park, MD

Average UV index in June - Riverdale Park, 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 and December (UV index 2).

Average cloud cover in June
Riverdale Park, MD

Average cloud cover in June - Riverdale Park, 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
Riverdale Park, MD

Average visibility in June - Riverdale Park, 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).

Riverdale Park, Maryland, USA

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