May weather forecast
Westchester, MD

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Weather in May

May, the last month of the spring in Westchester, is an agreeable month, with an average temperature varying between 55.2°F (12.9°C) and 72.5°F (22.5°C).

Temperature

With the onset of May, Westchester experiences a temperature shift, with the average high-temperature moving from a refreshing 63.1°F (17.3°C) in April to a pleasant 72.5°F (22.5°C). In May, Westchester reports a consistent average low-temperature of 55.2°F (12.9°C) during the nights.

Humidity

The most humid month in Westchester is May, with an average relative humidity of 77%.

Rainfall

In Westchester, in May, it is raining for 18.2 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 165.7 rainfall days, and 31.77" (807mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Westchester, the average length of the day in May is 14h and 21min.
On the first day of May, sunrise is at 6:07 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:27 pm EDT.

Sunshine

In Westchester, Maryland, the average sunshine in May is 8.9h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. 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. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What are the temperatures in Westchester in May?

In May, the average high-temperature and low-temperature are 72.5°F (22.5°C) and 55.2°F (12.9°C) respectively.

What is the most humid month?

The most humid month is May, with an average relative humidity of 77%.

What is the average humidity in May in Westchester?

The average relative humidity in May is 77%.

How many days does it rain in May?

In Westchester, during May, the rain falls for 18.2 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow?

In Westchester, snow does not fall in May through October.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Westchester have in May?

In Westchester, the average day length in May is 14h and 21min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:27 pm EDT.

How many hours of sunshine does Westchester have in May?

The average sunshine duration in May is 8.9h.

What are the months with the highest UV index?

The months with the highest UV index in Westchester 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 risk 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
Westchester, MD

Average temperature in May - Westchester, MD
  • Average high temperature in May: 72.5°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 (38.1°F).

  • Average low temperature in May: 55.2°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in May
Westchester, MD

Average pressure in May - Westchester, 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).

Average wind speed in May
Westchester, MD

Average wind speed in May - Westchester, MD
  • Average wind speed in May: 6.9mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in May
Westchester, MD

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

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in May
Westchester, MD

Average rainfall in May - Westchester, MD
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in May
Westchester, MD

Average rainfall days in May - Westchester, MD
  • Average rainfall days in May: 18.2 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in May
Westchester, MD

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

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Westchester, MD

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

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Westchester, 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 month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in May
Westchester, MD

Average sunshine days in May - Westchester, MD
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in May
Westchester, MD

Average UV index in May - Westchester, 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).

Average cloud cover in May
Westchester, MD

Average cloud cover in May - Westchester, 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).

Average visibility in May
Westchester, MD

Average visibility in May - Westchester, 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).

Westchester, Maryland, USA

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