May weather forecast
Westchester, SC

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Weather in May

May, the last month of the spring in Westchester, is a warm month, with temperature in the range of an average low of 69.3°F (20.7°C) and an average high of 78.1°F (25.6°C).

Temperature

The shift from April to May sees a slight increase in the average high-temperature, transitioning from a pleasant 71.4°F (21.9°C) to a moderately hot 78.1°F (25.6°C). A mean low-temperature of 69.3°F (20.7°C) is a distinguishing feature of May in Westchester, indicating a slight dip from daytime highs.

Humidity

The average relative humidity in May in Westchester is 76%.

Rainfall

In Westchester, during May, the rain falls for 9.9 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, in Westchester, there are 113.3 rainfall days, and 10" (254mm) of precipitation is accumulated.

Snowfall

February through November are months without snowfall in Westchester, South Carolina.

Daylight

In May, the average length of the day in Westchester is 13h and 51min.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:01 pm. On the last day of May, sunrise is at 6:12 am and sunset at 8:22 pm EDT.

Sunshine

In May, the average sunshine is 10.5h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Westchester. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During May, 7 as the daily maximum UV index converts into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

What are the temperatures in Westchester in May?

The high-temperature in Westchester during May is 78.1°F (25.6°C) and the low-temperature is 69.3°F (20.7°C).

What is the average humidity in May in Westchester?

The average relative humidity in May in Westchester, South Carolina, is 76%.

How many days does it rain in May in Westchester?

In Westchester, in May, it is raining for 9.9 days, with typically 0.47" (12mm) of accumulated precipitation.

When it does not snow in Westchester?

February through November are months without snowfall in Westchester.

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

The average day length in May in Westchester, South Carolina, is 13h and 51min.

What time are sunrise and sunset in May in Westchester?

In May, on the first day of the month, sunrise is at 6:31 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:22 pm EDT.

How many hours of sunshine does Westchester have in May?

In Westchester, South Carolina, the average sunshine duration in May is 10.5h.

What is the month with the highest UV index in Westchester?

The months with the highest UV index in Westchester, South Carolina, are May through August, with an average maximum UV index of 7.

What is the UV index intensity in May in Westchester?

In Westchester, South Carolina, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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
Westchester, SC

Average temperature in May - Westchester, SC
  • Average high temperature in May: 78.1°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in May: 69.3°F

The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

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Average pressure in May
Westchester, SC

Average pressure in May - Westchester, SC
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
Westchester, SC

Average wind speed in May - Westchester, SC
  • Average wind speed in May: 9.8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

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Average humidity in May
Westchester, SC

Average humidity in May - Westchester, SC
  • Average humidity in May: 76%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January, March and October (73%).

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Average rainfall in May
Westchester, SC

Average rainfall in May - Westchester, SC
  • Average rainfall in May: 0.47"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.24").

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Average rainfall days in May
Westchester, SC

Average rainfall days in May - Westchester, SC
  • Average rainfall days in May: 9.9 days

The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (5.2 days).

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Average snowfall days in May
Westchester, SC

Average snowfall days in May - Westchester, SC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Westchester, SC

Average daylight in May / Average sunshine in May - Westchester, SC
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 10h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in May
Westchester, SC

Average sunshine days in May - Westchester, SC
  • Average sunshine days in May: 18.4 days

The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is August (8.5 days).

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Average UV index in May
Westchester, SC

Average UV index in May - Westchester, SC
  • Average UV index in May: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in May
Westchester, SC

Average cloud cover in May - Westchester, SC
  • Average cloud cover in May: 27

The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 25).

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Average visibility in May
Westchester, SC

Average visibility in May - Westchester, SC
  • 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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Westchester, South Carolina, USA

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