May weather forecast
Sweet Briar, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Sweet Briar, Pennsylvania, with an average temperature fluctuating between 53.4°F (11.9°C) and 71.4°F (21.9°C).

Temperature

The transition to May introduces an increase in the average high-temperature, shifting from a comfortable 60.8°F (16°C) in April to an agreeable 71.4°F (21.9°C). During May, Sweet Briar records a consistent average nighttime temperature of 53.4°F (11.9°C).

Humidity

In Sweet Briar, Pennsylvania, the average relative humidity in May is 76%.

Rainfall

In May, the rain falls for 16 days. Throughout May, 1.77" (45mm) of precipitation is accumulated. In Sweet Briar, during the entire year, the rain falls for 138.2 days and collects up to 15.59" (396mm) of precipitation.

Snowfall

January through March, May and December are months with snowfall. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, there are 15.8 snowfall days, and 2.13" (54mm) of snow is accumulated.

Daylight

The average length of the day in May in Sweet Briar is 14h and 24min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:23 pm EDT.

Sunshine

In Sweet Briar, the average sunshine in May is 8.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 6 in May transforms into this advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

May temperatures vary between a high-temperature of 71.4°F (21.9°C) and a low-temperature of 53.4°F (11.9°C).

What is the average humidity in May?

In Sweet Briar, the average relative humidity in May is 76%.

How much does it rain in May?

In Sweet Briar, during May, the rain falls for 16 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When does it start snowing?

May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow.

What is the average length of the day in May?

In Sweet Briar, the average day length in May is 14h and 24min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:23 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.5h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index reading in May?

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes 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 May
Sweet Briar, PA

Average temperature in May - Sweet Briar, PA
  • Average high temperature in May: 71.4°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 May: 53.4°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
Sweet Briar, PA

Average pressure in May - Sweet Briar, 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
Sweet Briar, PA

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

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 May
Sweet Briar, PA

Average humidity in May - Sweet Briar, PA
  • Average humidity in May: 76%

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 May
Sweet Briar, PA

Average rainfall in May - Sweet Briar, PA
  • Average rainfall in May: 1.77"

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 May
Sweet Briar, PA

Average rainfall days in May - Sweet Briar, PA
  • Average rainfall days in May: 16 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 May
Sweet Briar, PA

Average snowfall in May - Sweet Briar, PA
  • Average snowfall in May: 0.16"

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 May
Sweet Briar, PA

Average snowfall days in May - Sweet Briar, PA
  • Average snowfall days in May: 0.1 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 May /
Average sunshine in May
Sweet Briar, PA

Average daylight in May / Average sunshine in May - Sweet Briar, 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 3min

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 May
Sweet Briar, PA

Average sunshine days in May - Sweet Briar, PA
  • Average sunshine days in May: 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 May
Sweet Briar, PA

Average UV index in May - Sweet Briar, 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
Sweet Briar, PA

Average cloud cover in May - Sweet Briar, PA
  • Average cloud cover in May: 47

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 May
Sweet Briar, PA

Average visibility in May - Sweet Briar, 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).

Sweet Briar, Pennsylvania, USA

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