May weather forecast
Spartansburg, PA

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Weather in May

The last month of the spring, May, is a comfortable month in Spartansburg, Pennsylvania, with an average temperature varying between 65.8°F (18.8°C) and 47.7°F (8.7°C).

Temperature

The shift into May is characterized by a rise in the average high-temperature, transitioning from April's fresh 53.2°F (11.8°C) to a refreshing 65.8°F (18.8°C). Nighttime temperatures in May average to a frosty 47.7°F (8.7°C).

Humidity

The least humid month is May, with an average relative humidity of 80%.

Rainfall

In Spartansburg, in May, it is raining for 19 days, with typically 3.39" (86mm) of accumulated precipitation. In Spartansburg, during the entire year, the rain falls for 176.8 days and collects up to 37.36" (949mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.9 snowfall days, in May, Spartansburg aggregates 0.28" (7mm) of snow. In Spartansburg, during the entire year, snow falls for 89.6 days and aggregates up to 48.78" (1239mm) of snow.

Daylight

In Spartansburg, the average length of the day in May is 14h and 34min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:46 am and sunset at 8:46 pm EDT.

Sunshine

The average sunshine in May is 8.5h.

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 moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 5 in May leads to these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Spartansburg in May?

May temperatures vary between a high-temperature of 65.8°F (18.8°C) and a low-temperature of 47.7°F (8.7°C).

What is the least humid month?

May is the least humid month, with an average relative humidity of 80%.

What is the average humidity in May?

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

How much does it rain in May?

In May, the rain falls for 19 days. Throughout May, 3.39" (86mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.9 snowfall days, in May, Spartansburg aggregates 0.28" (7mm) of snow.

What is the average length of the day in May?

In Spartansburg, the average day length in May is 14h and 34min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:13 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:46 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?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from 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
Spartansburg, PA

Average temperature in May - Spartansburg, PA
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in May: 47.7°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 (18.3°F).

Average pressure in May
Spartansburg, PA

Average pressure in May - Spartansburg, PA
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Spartansburg, PA

Average wind speed in May - Spartansburg, PA
  • Average wind speed in May: 7.4mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6mph).

Average humidity in May
Spartansburg, PA

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

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (80%).

Average rainfall in May
Spartansburg, PA

Average rainfall in May - Spartansburg, PA
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (2.64").

Average rainfall days in May
Spartansburg, PA

Average rainfall days in May - Spartansburg, PA
  • Average rainfall days in May: 19 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in May
Spartansburg, PA

Average snowfall in May - Spartansburg, PA
  • Average snowfall in May: 0.28"

The month with the highest snowfall is December (12.01").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Spartansburg, PA

Average snowfall days in May - Spartansburg, PA
  • Average snowfall days in May: 0.9 days

The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Spartansburg, PA
  • Average daylight in May: 14h and 4min

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

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).

Average sunshine days in May
Spartansburg, PA

Average sunshine days in May - Spartansburg, PA
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is October (10.9 days).
The month with the least sunshine days is January (5.4 days).

Average UV index in May
Spartansburg, PA

Average UV index in May - Spartansburg, 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
Spartansburg, PA

Average cloud cover in May - Spartansburg, PA
  • Average cloud cover in May: 46

The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in May
Spartansburg, PA

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

The month with the highest visibility is October (6mi).
The months with the lowest visibility are January, February and December (4mi).

Spartansburg, Pennsylvania, USA

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