May weather forecast
Simpsonville, MD

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Weather in May

May, the last month of the spring in Simpsonville, is an agreeable month, with an average temperature ranging between max 72.7°F (22.6°C) and min 55.4°F (13°C).

Temperature

The arrival of May brings a temperature shift, with the average high-temperature escalating from an enjoyable 63.1°F (17.3°C) in April to an agreeable 72.7°F (22.6°C). The average temperature in Simpsonville drops to a refreshing 55.4°F (13°C) during the night in the month of May.

Humidity

The months with the highest humidity in Simpsonville are May and October, with an average relative humidity of 77%.

Rainfall

In Simpsonville, during May, the rain falls for 18 days and regularly aggregates up to 3.15" (80mm) of precipitation. Throughout the year, there are 159.3 rainfall days, and 30.31" (770mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In May, the average length of the day in Simpsonville is 14h and 20min.
On the first day of May in Simpsonville, sunrise is at 6:08 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:27 pm EDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 6 in May translates into this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

What is the temperature in May in Simpsonville?

The high-temperature during May is 72.7°F (22.6°C) and the low-temperature is 55.4°F (13°C).

What are the most humid months in Simpsonville?

The months with the highest humidity in Simpsonville, Maryland, are May and October, with an average relative humidity of 77%.

What is the average humidity in May in Simpsonville?

In Simpsonville, Maryland, the average relative humidity in May is 77%.

How much does it rain in Simpsonville in May?

In Simpsonville, in May, it is raining for 18 days, with typically 3.15" (80mm) of accumulated precipitation.

When it does not snow in Simpsonville?

April through October are months without snowfall in Simpsonville.

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

The average day length in May in Simpsonville, Maryland, is 14h and 20min.

What time are sunrise and sunset in May in Simpsonville?

In May, on the first day of the month, sunrise is at 6:08 am and sunset at 8:01 pm. On the last day of the month, in Simpsonville, Maryland, sunrise is at 5:43 am and sunset at 8:27 pm EDT.

How long on average sun shines in May in Simpsonville?

In May, the average sunshine duration is 8.9h.

When is the highest UV index in Simpsonville?

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

How high is the UV index in May in Simpsonville?

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Simpsonville, MD

Average temperature in May - Simpsonville, MD
  • Average high temperature in May: 72.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in May: 55.4°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in May
Simpsonville, MD

Average pressure in May - Simpsonville, MD
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in May
Simpsonville, MD

Average wind speed in May - Simpsonville, MD
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
Simpsonville, MD

Average humidity in May - Simpsonville, MD
  • Average humidity in May: 77%

The months with the highest relative humidity are May and October (77%).
The months with the lowest relative humidity are April and July (72%).

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Average rainfall in May
Simpsonville, MD

Average rainfall in May - Simpsonville, MD
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in May
Simpsonville, MD

Average rainfall days in May - Simpsonville, MD
  • Average rainfall days in May: 18 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in May
Simpsonville, MD

Average snowfall in May - Simpsonville, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Simpsonville, MD

Average snowfall days in May - Simpsonville, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Simpsonville, MD

Average daylight in May / Average sunshine in May - Simpsonville, MD
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).

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Average sunshine days in May
Simpsonville, MD

Average sunshine days in May - Simpsonville, MD
  • Average sunshine days in May: 11 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).

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Average UV index in May
Simpsonville, MD

Average UV index in May - Simpsonville, MD
  • 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, November and December (UV index 2).

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Average cloud cover in May
Simpsonville, MD

Average cloud cover in May - Simpsonville, MD
  • Average cloud cover in May: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Simpsonville, MD

Average visibility in May - Simpsonville, MD
  • Average visibility in May: 6mi

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

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Simpsonville, Maryland, USA

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