June weather forecast
Southwest, PA

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Weather in June

June, the first month of the summer in Southwest, is a warm month, with an average temperature fluctuating between 56.5°F (13.6°C) and 77.4°F (25.2°C).

Temperature

With the onset of June, the average high-temperature subtly transitions from an agreeable 70.7°F (21.5°C) in May to a warm 77.4°F (25.2°C). June nights are marked by an average low-temperature of 56.5°F (13.6°C).

Humidity

The average relative humidity in June is 78%.

Rainfall

In Southwest, in June, it is raining for 17.3 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, there are 185.4 rainfall days, and 34.02" (864mm) of precipitation is accumulated.

Snowfall

In Southwest, snow does not fall in June through September.

Daylight

The month with the longest days in Southwest is June, with an average of 15h and 0min of daylight.
On the first day of June, sunrise is at 5:50 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:51 pm EDT.

Sunshine

The average sunshine in June in Southwest is 9.5h.

UV index

In Southwest, the average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 5 during June leads to these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are June temperatures?

In Southwest, 77.4°F (25.2°C) is the average high-temperature and 56.5°F (13.6°C) is the average low-temperature during June.

What is the average humidity in June?

The average relative humidity in June is 78%.

How many days does it rain in June?

In Southwest, in June, during 17.3 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

When it does not snow?

June through September 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?

June has the longest days of the year in Southwest, with an average of 15h and 0min of daylight.

How many hours of daylight does Southwest have in June?

In Southwest, the average day length in June is 14h and 59min.

When is the sunrise / sunset in June?

On the first day of June, sunrise is at 5:50 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:51 pm EDT.

How long on average sun shines in June?

In June, the average sunshine duration is 9.5h.

What is the UV index intensity in June?

The average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Southwest, PA

Average temperature in June - Southwest, PA
  • Average high temperature in June: 77.4°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in June: 56.5°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in June
Southwest, PA

Average pressure in June - Southwest, PA
  • 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
Southwest, PA

Average wind speed in June - Southwest, PA
  • Average wind speed in June: 5.8mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in June
Southwest, PA

Average humidity in June - Southwest, PA
  • Average humidity in June: 78%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in June
Southwest, PA

Average rainfall in June - Southwest, PA
  • Average rainfall in June: 3.03"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.01").

Average rainfall days in June
Southwest, PA

Average rainfall days in June - Southwest, PA
  • Average rainfall days in June: 17.3 days

The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in June
Southwest, PA

Average snowfall in June - Southwest, PA
  • Average snowfall in June: 0"

The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in June
Southwest, PA

Average snowfall days in June - Southwest, PA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Southwest, PA

Average daylight in June / Average sunshine in June - Southwest, PA
  • Average daylight in June: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in June: 9h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in June
Southwest, PA

Average sunshine days in June - Southwest, PA
  • Average sunshine days in June: 10.4 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.5 days).

Average UV index in June
Southwest, PA

Average UV index in June - Southwest, PA
  • Average UV index in June: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in June
Southwest, PA

Average cloud cover in June - Southwest, PA
  • Average cloud cover in June: 41

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in June
Southwest, PA

Average visibility in June - Southwest, PA
  • Average visibility in June: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Southwest, Pennsylvania, USA

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