May weather forecast
Harris Heights, MD

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Weather in May

The last month of the spring, May, is an agreeable month in Harris Heights, Maryland, with an average temperature fluctuating between 56.8°F (13.8°C) and 72.3°F (22.4°C).

Temperature

As Harris Heights transitions into May, the average high-temperature shows a change, moving from an enjoyable 63.1°F (17.3°C) in April to an agreeable 72.3°F (22.4°C). Harris Heights records an average nighttime low of 56.8°F (13.8°C) in May.

Humidity

With an average relative humidity of 77%, May is the most humid month.

Rainfall

In Harris Heights, in May, during 18 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. In Harris Heights, during the entire year, the rain falls for 157.2 days and collects up to 30.47" (774mm) of precipitation.

Snowfall

In Harris Heights, snow does not fall in April through October.

Daylight

The average length of the day in May is 14h and 20min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:00 pm. On the last day of May, in Harris Heights, sunrise is at 5:42 am and sunset at 8:26 pm EDT.

Sunshine

The average sunshine in May in Harris Heights, Maryland, is 9.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Harris Heights. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the average May temperature in Harris Heights?

The average high-temperature and low-temperature during May are 72.3°F (22.4°C) and 56.8°F (13.8°C) respectively.

What is the most humid month in Harris Heights?

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

What is the average humidity in May in Harris Heights?

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

How many days does it rain in May in Harris Heights?

In Harris Heights, in May, during 18 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

When it does not snow in Harris Heights?

April through October are months without snowfall in Harris Heights.

What is the average length of the day in May in Harris Heights?

The average day length in May in Harris Heights is 14h and 20min.

When is the sunrise / sunset in May in Harris Heights?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 8:00 pm. On the last day of the month, in Harris Heights, sunrise is at 5:42 am and sunset at 8:26 pm EDT.

How many hours of sunshine does Harris Heights have in May?

In May, the average sunshine duration in Harris Heights is 9.2h.

When is the highest UV index in Harris Heights?

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 Harris Heights?

In May, the average daily maximum UV index in Harris Heights, Maryland, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe 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
Harris Heights, MD

Average temperature in May - Harris Heights, MD
  • Average high temperature in May: 72.3°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in May: 56.8°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in May
Harris Heights, MD

Average pressure in May - Harris Heights, 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
Harris Heights, MD

Average wind speed in May - Harris Heights, MD
  • Average wind speed in May: 7.3mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in May
Harris Heights, MD

Average humidity in May - Harris Heights, MD
  • Average humidity in May: 77%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are March, April and July (72%).

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Average rainfall in May
Harris Heights, MD

Average rainfall in May - Harris Heights, MD
  • Average rainfall in May: 2.95"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").

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Average rainfall days in May
Harris Heights, MD

Average rainfall days in May - Harris Heights, MD
  • Average rainfall days in May: 18 days

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

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Average snowfall in May
Harris Heights, MD

Average snowfall in May - Harris Heights, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.09").
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
Harris Heights, MD

Average snowfall days in May - Harris Heights, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Harris Heights, MD

Average daylight in May / Average sunshine in May - Harris Heights, 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: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in May
Harris Heights, MD

Average sunshine days in May - Harris Heights, MD
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is November (19.9 days).
The months with the least sunshine days are May and July (10.8 days).

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Average UV index in May
Harris Heights, MD

Average UV index in May - Harris Heights, 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, November and December (UV index 2).

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Average cloud cover in May
Harris Heights, MD

Average cloud cover in May - Harris Heights, MD
  • Average cloud cover in May: 42

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Harris Heights, MD

Average visibility in May - Harris Heights, 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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Harris Heights, Maryland, USA

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