June weather forecast
Gaithersburg, MD

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Weather in June

In June, Gaithersburg weather transitions towards the summer season. The city experiences notable rising temperatures making their way from 62.8°F (17.1°C) to 81.3°F (27.4°C). With the increase in sunshine duration, parks and beaches become popular hangout spots. The weather remains fairly consistent throughout this month, leading to the gradual arrival of typical summer conditions. The drop in rainfall compared to May is compensated by the refreshing summer winds.

Temperature

In June, the average high-temperature marginally rises from 73.6°F (23.1°C) in May to a still warm 81.3°F (27.4°C). During June, Gaithersburg experiences an average low-temperature of 62.8°F (17.1°C) at night.

Heat index

During June, the heat index is evaluated at a tropical 86°F (30°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

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

Rainfall

In June, the rain falls for 15.2 days. Throughout June, 2.48" (63mm) of precipitation is accumulated. In Gaithersburg, during the entire year, the rain falls for 154.8 days and collects up to 29.09" (739mm) of precipitation.

Snowfall

June through October are months without snowfall.

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 8:29 pm. On the last day of June, sunrise is at 5:46 am and sunset at 8:39 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 risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 6 in June translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

What is the average June temperature?

The average high-temperature, in June, in Gaithersburg, is 81.3°F (27.4°C), while the average low-temperature is 62.8°F (17.1°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in June is evaluated at 86°F (30°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 June, the rain falls for 15.2 days. Throughout June, 2.48" (63mm) of precipitation is accumulated.

When it does not snow?

June through October are months without snowfall.

Does it snow in June?

In June, it doesn't snow. May is the latest month when it typically snows.

When are the longest days?

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

What is the average length of the day in June?

In June, the average day length is 14h and 53min.

When are sunrise and sunset in June in Gaithersburg?

In June, on the first day of the month, sunrise is at 5:44 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:39 pm EDT.

How many hours of sunshine does Gaithersburg have in June?

In June, the average sunshine duration is 10.3h.

What is the month 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 Gaithersburg, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Gaithersburg, MD

Average temperature in June - Gaithersburg, MD
  • Average high temperature in June: 81.3°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in June: 62.8°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 (25.2°F).

Average pressure in June
Gaithersburg, MD

Average pressure in June - Gaithersburg, 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
Gaithersburg, MD

Average wind speed in June - Gaithersburg, 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 (4.9mph).

Average humidity in June
Gaithersburg, MD

Average humidity in June - Gaithersburg, MD
  • Average humidity in June: 74%

The months with the highest relative humidity are May, October and December (77%).
The month with the lowest relative humidity is July (72%).

Average rainfall in June
Gaithersburg, MD

Average rainfall in June - Gaithersburg, MD
  • Average rainfall in June: 2.48"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.73").

Average rainfall days in June
Gaithersburg, MD

Average rainfall days in June - Gaithersburg, MD
  • Average rainfall days in June: 15.2 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in June
Gaithersburg, MD

Average snowfall in June - Gaithersburg, MD
  • Average snowfall in June: 0"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in June
Gaithersburg, MD

Average snowfall days in June - Gaithersburg, MD
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in June /
Average sunshine in June
Gaithersburg, MD

Average daylight in June / Average sunshine in June - Gaithersburg, 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 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

Average sunshine days in June
Gaithersburg, MD

Average sunshine days in June - Gaithersburg, MD
  • Average sunshine days in June: 13.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in June
Gaithersburg, MD

Average UV index in June - Gaithersburg, 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
Gaithersburg, MD

Average cloud cover in June - Gaithersburg, 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
Gaithersburg, MD

Average visibility in June - Gaithersburg, 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).

Gaithersburg, Maryland, USA

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