June weather forecast
Norristown, PA

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Weather in June

The first month of the summer, June, is a warm month in Norristown, Pennsylvania, with an average temperature fluctuating between 61.5°F (16.4°C) and 79.5°F (26.4°C).

Temperature

June's arrival signals a subtle increase in average high-temperatures, moving from May's agreeable 71.4°F (21.9°C) to a warm 79.5°F (26.4°C). In June, Norristown encounters an average low-temperature of 61.5°F (16.4°C) during the night.

Humidity

In Norristown, the average relative humidity in June is 75%.

Rainfall

In Norristown, in June, it is raining for 14.2 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 138.2 rainfall days, and 15.59" (396mm) of precipitation is accumulated.

Snowfall

In Norristown, snow does not fall in April, June through November.

Daylight

With an average of 15h and 0min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:33 am and sunset at 8:24 pm. On the last day of June, sunrise is at 5:35 am and sunset at 8:34 pm EDT.

Sunshine

In June, the average sunshine is 9.8h.

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 unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during June translates into these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

What are the temperatures in June?

The average high-temperature and low-temperature during June are 79.5°F (26.4°C) and 61.5°F (16.4°C) respectively.

What is the average humidity in June?

In June, the average relative humidity is 75%.

How many days does it rain in June?

In Norristown, in June, during 14.2 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow?

In Norristown, Pennsylvania, snow does not fall in April, June through November.

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 is June, with an average of 15h and 0min of daylight.

How many hours of daylight does Norristown have in June?

The average day length in June in Norristown is 14h and 59min.

When are sunrise and sunset in June?

On the first day of June in Norristown, sunrise is at 5:33 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:34 pm EDT.

How long on average sun shines in June?

In June, the average sunshine duration is 9.8h.

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 Norristown, the average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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
Norristown, PA

Average temperature in June - Norristown, PA
  • Average high temperature in June: 79.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in June: 61.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in June
Norristown, PA

Average pressure in June - Norristown, PA
  • Average pressure in June: 29.94"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in June
Norristown, PA

Average wind speed in June - Norristown, PA
  • Average wind speed in June: 6.2mph

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

Average humidity in June
Norristown, PA

Average humidity in June - Norristown, PA
  • Average humidity in June: 75%

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in June
Norristown, PA

Average rainfall in June - Norristown, PA
  • Average rainfall in June: 1.42"

The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days in June
Norristown, PA

Average rainfall days in June - Norristown, PA
  • Average rainfall days in June: 14.2 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (7.4 days).

Average snowfall in June
Norristown, PA

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

The months with the highest snowfall are February and March (0.55").
The months with the least snowfall are April, June, July, August, September, October and November (0").

Average snowfall days in June
Norristown, PA

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

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).

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

Average daylight in June / Average sunshine in June - Norristown, 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 5min

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 48min).

Average sunshine days in June
Norristown, PA

Average sunshine days in June - Norristown, PA
  • Average sunshine days in June: 12.8 days

The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are May and June (12.8 days).

Average UV index in June
Norristown, PA

Average UV index in June - Norristown, PA
  • 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, March, November and December (UV index 2).

Average cloud cover in June
Norristown, PA

Average cloud cover in June - Norristown, PA
  • Average cloud cover in June: 37

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in June
Norristown, PA

Average visibility in June - Norristown, PA
  • 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).

Norristown, Pennsylvania, USA

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