May weather forecast
Sidley, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Sidley, Pennsylvania, with an average temperature fluctuating between 71.1°F (21.7°C) and 53.6°F (12°C).

Temperature

May brings a rise in the average high-temperature, transitioning from April's moderate 60.6°F (15.9°C) to a pleasant 71.1°F (21.7°C). Throughout May nights, Sidley experiences a consistent temperature average of 53.6°F (12°C).

Humidity

The average relative humidity in May is 77%.

Rainfall

In Sidley, Pennsylvania, in May, it is raining for 13.7 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, there are 124.6 rainfall days, and 14.25" (362mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Sidley aggregates 0.16" (4mm) of snow. Throughout the year, there are 18.5 snowfall days, and 5.51" (140mm) of snow is accumulated.

Daylight

In Sidley, the average length of the day in May is 14h and 25min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:24 pm EDT.

Sunshine

In May, the average sunshine in Sidley is 8.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The average high-temperature and low-temperature during May are 71.1°F (21.7°C) and 53.6°F (12°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 77%.

How much does it rain in May?

In Sidley, Pennsylvania, in May, during 13.7 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Sidley aggregates 0.16" (4mm) of snow.

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

The average day length in May is 14h and 25min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:24 pm EDT.

How many hours of sunshine does Sidley have in May?

In May, the average sunshine duration is 8.2h.

When is 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 reading in May?

The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 May
Sidley, PA

Average temperature in May - Sidley, PA
  • Average high temperature in May: 71.1°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in May: 53.6°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 May
Sidley, PA

Average pressure in May - Sidley, 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
Sidley, PA

Average wind speed in May - Sidley, PA
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
Sidley, PA

Average humidity in May - Sidley, PA
  • Average humidity in May: 77%

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (73%).

Average rainfall in May
Sidley, PA

Average rainfall in May - Sidley, PA
  • Average rainfall in May: 1.38"

The wettest month (with the highest rainfall) is August (1.89").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in May
Sidley, PA

Average rainfall days in May - Sidley, PA
  • Average rainfall days in May: 13.7 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (5 days).

Average snowfall in May
Sidley, PA

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

The month with the highest snowfall is March (1.57").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Sidley, PA

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

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Sidley, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in May
Sidley, PA

Average sunshine days in May - Sidley, PA
  • Average sunshine days in May: 14.4 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (13.3 days).

Average UV index in May
Sidley, PA

Average UV index in May - Sidley, PA
  • Average UV index in May: 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 May
Sidley, PA

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

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in May
Sidley, PA

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

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).

Sidley, Pennsylvania, USA

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