May weather forecast
Highland, MD

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Weather in May

May, the last month of the spring in Highland, is a moderately hot month, with an average temperature varying between 73.8°F (23.2°C) and 56.3°F (13.5°C).

Temperature

Highland in May shows a temperature shift, moving from an average high of a comfortable 64°F (17.8°C) in April to a moderately hot 73.8°F (23.2°C). Throughout May, the temperature falls to an average low of 56.3°F (13.5°C).

Humidity

The months with the highest humidity are May, October and December, with an average relative humidity of 76%.

Rainfall

In May, the rain falls for 17.3 days. Throughout May, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 155.7 rainfall days, and 31.42" (798mm) of precipitation is accumulated.

Snowfall

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

Daylight

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

Sunshine

In May, the average sunshine is 8.8h.

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 health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

In Highland, in May, the average high-temperature is 73.8°F (23.2°C), and the average low-temperature is 56.3°F (13.5°C).

What is the most humid month?

The months with the highest humidity are May, October and December, with an average relative humidity of 76%.

What is the average humidity in May?

In May, the average relative humidity is 76%.

How much does it rain in May?

In Highland, in May, during 17.3 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

When it does not snow in Highland?

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

Does it snow in May?

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

What is the average length of the day in May?

In Highland, Maryland, the average day length in May is 14h and 20min.

When is the sunrise / sunset in May?

On the first day of May, 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.

How many hours of sunshine does Highland have in May?

In May, the average sunshine duration is 8.8h.

When is the highest UV index?

The months with the highest UV index in Highland 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 in Highland is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Highland, MD

Average temperature in May - Highland, MD
  • Average high temperature in May: 73.8°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in May: 56.3°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in May
Highland, MD

Average pressure in May - Highland, 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
Highland, MD

Average wind speed in May - Highland, MD
  • Average wind speed in May: 6.7mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in May
Highland, MD

Average humidity in May - Highland, MD
  • Average humidity in May: 76%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in May
Highland, MD

Average rainfall in May - Highland, MD
  • Average rainfall in May: 3.03"

The wettest month (with the highest rainfall) is August (4.02").
The driest months (with the least rainfall) are January and February (2.01").

Average rainfall days in May
Highland, MD

Average rainfall days in May - Highland, MD
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9 days).

Average snowfall in May
Highland, MD

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

The month with the highest snowfall is March (2.95").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Highland, MD

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

The month with the highest number of snowfall days is January (5.4 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
Highland, MD

Average daylight in May / Average sunshine in May - Highland, 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
Highland, MD

Average sunshine days in May - Highland, MD
  • Average sunshine days in May: 11.7 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in May
Highland, MD

Average UV index in May - Highland, 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
Highland, MD

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

The months with the most cloud cover are March and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Highland, MD

Average visibility in May - Highland, 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).

Highland, Maryland, USA

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