May weather forecast
Portage, PA

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Weather in May

May, the last month of the spring in Portage, is a refreshing month, with an average temperature varying between 67.8°F (19.9°C) and 48.7°F (9.3°C).

Temperature

As Portage transitions into May, a rise in the average high-temperature is observed, moving from 56.8°F (13.8°C) in April to a still refreshing 67.8°F (19.9°C). The low-temperature average for Portage during May stands at a chilly 48.7°F (9.3°C).

Humidity

In May, the average relative humidity is 80%.

Rainfall

The month with the most rainfall is May, when the rain falls for 19.5 days and typically aggregates up to 3.23" (82mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Portage aggregates 0.16" (4mm) of snow. Throughout the year, there are 51.3 snowfall days, and 23.54" (598mm) of snow is accumulated.

Daylight

In Portage, Pennsylvania, the average length of the day in May is 14h and 26min.
On the first day of May, sunrise is at 6:12 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:38 pm EDT.

Sunshine

In May, the average sunshine is 8.4h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 5 during May translates into the following directions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Portage in May?

Portage in May has an average high-temperature of 67.8°F (19.9°C) and an average low-temperature of 48.7°F (9.3°C).

What is the average humidity in May?

In Portage, the average relative humidity in May is 80%.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 19.5 days and typically aggregates up to 3.23" (82mm) of precipitation.

How many days does it rain in May?

In May, in Portage, the rain falls for 19.5 days. Throughout May, 3.23" (82mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.6 snowfall days, in May, Portage aggregates 0.16" (4mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 26min.

What time are sunrise and sunset in May?

On the first day of May in Portage, Pennsylvania, sunrise is at 6:12 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:38 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.4h.

When is the highest UV index?

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

How high is the UV index in May?

In Portage, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
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
Portage, PA

Average temperature in May - Portage, PA
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in May
Portage, PA

Average pressure in May - Portage, PA
  • Average pressure in May: 30"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 May
Portage, PA

Average wind speed in May - Portage, PA
  • Average wind speed in May: 7mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in May
Portage, PA

Average humidity in May - Portage, PA
  • Average humidity in May: 80%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and July (78%).

Average rainfall in May
Portage, PA

Average rainfall in May - Portage, PA
  • Average rainfall in May: 3.23"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in May
Portage, PA

Average rainfall days in May - Portage, PA
  • Average rainfall days in May: 19.5 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is December (8.8 days).

Average snowfall in May
Portage, PA

Average snowfall in May - Portage, PA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is January (6.34").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Portage, PA

Average snowfall days in May - Portage, PA
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Portage, PA
  • Average daylight in May: 14h and 2min

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 18min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in May
Portage, PA

Average sunshine days in May - Portage, PA
  • Average sunshine days in May: 9.7 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (9.7 days).

Average UV index in May
Portage, PA

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

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

Average cloud cover in May
Portage, PA

Average cloud cover in May - Portage, PA
  • Average cloud cover in May: 49

The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 39).

Average visibility in May
Portage, PA

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

Portage, Pennsylvania, USA

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