May weather forecast
Richland, PA

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Weather in May

May, the last month of the spring in Richland, is a pleasant month, with an average temperature varying between 50.9°F (10.5°C) and 68.9°F (20.5°C).

Temperature

As May sets, the average high-temperature shows an increase, moving up from a mild 59°F (15°C) in April to an agreeable 68.9°F (20.5°C). During May, the nighttime temperature in Richland, Pennsylvania, averages of 50.9°F (10.5°C).

Humidity

February, May and October, with an average relative humidity of 81%, are the most humid months.

Rainfall

In Richland, in May, it is raining for 18.4 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, in Richland, Pennsylvania, there are 168.8 rainfall days, and 33.27" (845mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Richland. May is the last month it regularly snows. During 0.2 snowfall days, in May, Richland aggregates 0.2" (5mm) of snow. In Richland, during the entire year, snow falls for 29.6 days and aggregates up to 15.59" (396mm) of snow.

Daylight

In Richland, the average length of the day in May is 14h and 26min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:00 pm. On the last day of May, in Richland, Pennsylvania, sunrise is at 5:37 am and sunset at 8:28 pm EDT.

Sunshine

The average sunshine in May is 8.2h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during May leads to these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 13, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are May temperatures in Richland?

An average high-temperature, in May, in Richland, is 68.9°F (20.5°C) and the average low-temperature is 50.9°F (10.5°C).

What is the most humid month in Richland?

February, May and October, with an average relative humidity of 81%, are most humid months.

What is the average humidity in May in Richland?

In May, the average relative humidity in Richland, Pennsylvania, is 81%.

How many days does it rain in May in Richland?

In May, in Richland, Pennsylvania, the rain falls for 18.4 days. Throughout May, 3.19" (81mm) of precipitation is accumulated.

What is the last month it snows in Richland?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Richland aggregates 0.2" (5mm) of snow.

What is the average length of the day in May in Richland?

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

What time are sunrise and sunset in May in Richland?

On the first day of May in Richland, sunrise is at 6:03 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:28 pm EDT.

How long on average sun shines in May in Richland?

In Richland, the average sunshine duration in May is 8.2h.

What is the UV index intensity in May in Richland?

In Richland, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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 May
Richland, PA

Average temperature in May - Richland, PA
  • Average high temperature in May: 68.9°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in May: 50.9°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in May
Richland, PA

Average pressure in May - Richland, PA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Richland, PA

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

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in May
Richland, PA

Average humidity in May - Richland, PA
  • Average humidity in May: 81%

The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in May
Richland, PA

Average rainfall in May - Richland, PA
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is September (2.24").

Average rainfall days in May
Richland, PA

Average rainfall days in May - Richland, PA
  • Average rainfall days in May: 18.4 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in May
Richland, PA

Average snowfall in May - Richland, PA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Richland, PA

Average snowfall days in May - Richland, PA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Richland, 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 24min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in May
Richland, PA

Average sunshine days in May - Richland, PA
  • Average sunshine days in May: 10.2 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (10.2 days).

Average UV index in May
Richland, PA

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

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

Average cloud cover in May
Richland, PA

Average cloud cover in May - Richland, PA
  • Average cloud cover in May: 48

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in May
Richland, PA

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

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

Richland, Pennsylvania, USA

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