May weather forecast
Bel Air, MD

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Weather in May

May is known for its notable weather change in Bel Air. The town begins to warm up significantly, announcing the arrival of summer. This month is marked by a high increase in humidity, reaching 80%. The daylight duration visibly stretches, gifting residents with more room to enjoy outdoor activities. All these factors contribute to May’s general balmy conditions and preparation for the upcoming summer.

Temperature

A shift in the average high-temperature is noticeable in May, changing from a comfortable 61.9°F (16.6°C) in April to an agreeable 71.4°F (21.9°C). Nighttime temperature lowers to an average of 54.5°F (12.5°C) in May.

Humidity

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

Rainfall

In May, the rain falls for 19.3 days. Throughout May, 3.43" (87mm) of precipitation is accumulated. Throughout the year, there are 170.1 rainfall days, and 36.42" (925mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Bel Air aggregates 0.08" (2mm) of snow. Throughout the year, there are 21.9 snowfall days, and 10.55" (268mm) of snow is accumulated.

Daylight

In Bel Air, the average length of the day in May is 14h and 22min.
On the first day of May, sunrise is at 6:05 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:26 pm EDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

The months with the highest UV index in Bel Air 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 exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 in May interprets into the following 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Bel Air in May?

The high-temperature, in May, in Bel Air, records 71.4°F (21.9°C), while the low-temperature is 54.5°F (12.5°C).

What is the most humid month?

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

What is the average humidity in May?

In Bel Air, Maryland, the average relative humidity in May is 80%.

How much does it rain in May?

In May, the rain falls for 19.3 days. Throughout May, 3.43" (87mm) of precipitation is accumulated.

What is the last month it snows in Bel Air?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Bel Air aggregates 0.08" (2mm) of snow.

How many hours of daylight does Bel Air have in May?

The average day length in May in Bel Air is 14h and 22min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:05 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:26 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.6h.

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 intensity in May?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Bel Air, MD

Average temperature in May - Bel Air, MD
  • Average high temperature in May: 71.4°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in May
Bel Air, MD

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Bel Air, MD

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

The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
Bel Air, MD

Average humidity in May - Bel Air, MD
  • Average humidity in May: 80%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).

Average rainfall in May
Bel Air, MD

Average rainfall in May - Bel Air, MD
  • Average rainfall in May: 3.43"

The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is January (2.36").

Average rainfall days in May
Bel Air, MD

Average rainfall days in May - Bel Air, MD
  • Average rainfall days in May: 19.3 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in May
Bel Air, MD

Average snowfall in May - Bel Air, MD
  • Average snowfall in May: 0.08"

The month with the highest snowfall is March (3.62").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Bel Air, MD

Average snowfall days in May - Bel Air, MD
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Bel Air, MD

Average daylight in May / Average sunshine in May - Bel Air, 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 24min).

  • Average sunshine in May: 8h and 4min

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 54min).

Average sunshine days in May
Bel Air, MD

Average sunshine days in May - Bel Air, MD
  • Average sunshine days in May: 8.8 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.8 days).

Average UV index in May
Bel Air, MD

Average UV index in May - Bel Air, 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
Bel Air, MD

Average cloud cover in May - Bel Air, MD
  • Average cloud cover in May: 46

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in May
Bel Air, MD

Average visibility in May - Bel Air, MD
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Bel Air, Maryland, USA

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