May weather forecast
Lopez, PA

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Weather in May

May, the last month of the spring in Lopez, is a comfortable month, with an average temperature fluctuating between 67.5°F (19.7°C) and 47.8°F (8.8°C).

Temperature

May brings a rise in the average high-temperature, transitioning from April's fresh 55°F (12.8°C) to a refreshing 67.5°F (19.7°C). During May, the average low-temperature is a chilly 47.8°F (8.8°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

In Lopez, during May, the rain falls for 19.3 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Lopez, during the entire year, the rain falls for 166.2 days and collects up to 30.83" (783mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Lopez aggregates 0.35" (9mm) of snow. Throughout the year, there are 57.9 snowfall days, and 29.53" (750mm) of snow is accumulated.

Daylight

In Lopez, the average length of the day in May is 14h and 32min.
On the first day of May, sunrise is at 6:01 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:32 pm EDT.

Sunshine

In May, the average sunshine is 8.1h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 5 during May translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

In Lopez, 67.5°F (19.7°C) is the average high-temperature and 47.8°F (8.8°C) is the average low-temperature during May.

What is the average humidity in May?

In Lopez, the average relative humidity in May is 79%.

How many days does it rain in May in Lopez?

In Lopez, in May, during 19.3 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Lopez aggregates 0.35" (9mm) of snow.

What is the average length of the day in May?

In Lopez, the average day length in May is 14h and 32min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:32 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.1h.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Lopez, PA

Average temperature in May - Lopez, PA
  • Average high temperature in May: 67.5°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in May: 47.8°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in May
Lopez, PA

Average pressure in May - Lopez, PA
  • Average pressure in May: 30.01"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 May
Lopez, PA

Average wind speed in May - Lopez, PA
  • Average wind speed in May: 6.5mph

The windiest months (with the highest average wind speed) are March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in May
Lopez, PA

Average humidity in May - Lopez, PA
  • Average humidity in May: 79%

The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).

Average rainfall in May
Lopez, PA

Average rainfall in May - Lopez, PA
  • Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days in May
Lopez, PA

Average rainfall days in May - Lopez, PA
  • Average rainfall days in May: 19.3 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in May
Lopez, PA

Average snowfall in May - Lopez, PA
  • Average snowfall in May: 0.35"

The month with the highest snowfall is February (8.66").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Lopez, PA

Average snowfall days in May - Lopez, PA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Lopez, PA

Average daylight in May / Average sunshine in May - Lopez, PA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

Average sunshine days in May
Lopez, PA

Average sunshine days in May - Lopez, PA
  • Average sunshine days in May: 9.9 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in May
Lopez, PA

Average UV index in May - Lopez, PA
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Lopez, PA

Average cloud cover in May - Lopez, PA
  • Average cloud cover in May: 50

The months with the most cloud cover are February and December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in May
Lopez, PA

Average visibility in May - Lopez, PA
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).

Lopez, Pennsylvania, USA

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