May weather forecast
Montgomery Run, MD

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Weather in May

The last month of the spring, May, is an agreeable month in Montgomery Run, Maryland, with an average temperature fluctuating between 72.7°F (22.6°C) and 55.4°F (13°C).

Temperature

The arrival of May brings a temperature shift, with the average high-temperature escalating from a refreshing 63.1°F (17.3°C) in April to an agreeable 72.7°F (22.6°C). An average low-temperature of 55.4°F (13°C) is observed during May nights.

Humidity

The months with the highest humidity are May and October, with an average relative humidity of 77%.

Rainfall

In Montgomery Run, Maryland, in May, it is raining for 18 days, with typically 3.15" (80mm) of accumulated precipitation. Throughout the year, there are 159.3 rainfall days, and 30.31" (770mm) of precipitation is accumulated.

Snowfall

In Montgomery Run, snow does not fall in April through October.

Daylight

In May, the average length of the day is 14h and 20min.
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

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 of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What is the temperature in May?

Montgomery Run in May has an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 55.4°F (13°C).

What are the most humid months?

May and October, with an average relative humidity of 77%, are most humid months.

What is the average humidity in May?

In Montgomery Run, the average relative humidity in May is 77%.

How much does it rain in May?

In Montgomery Run, during May, the rain falls for 18 days and regularly aggregates up to 3.15" (80mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in May?

In Montgomery Run, the average day length in May is 14h and 20min.

When are sunrise and 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, in Montgomery Run, sunrise is at 5:42 am and sunset at 8:27 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.9h.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in May in Montgomery Run?

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Montgomery Run, MD

Average temperature in May - Montgomery Run, MD
  • Average high temperature in May: 72.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in May: 55.4°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in May
Montgomery Run, MD

Average pressure in May - Montgomery Run, 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
Montgomery Run, MD

Average wind speed in May - Montgomery Run, MD
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
Montgomery Run, MD

Average humidity in May - Montgomery Run, MD
  • Average humidity in May: 77%

The months with the highest relative humidity are May and October (77%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in May
Montgomery Run, MD

Average rainfall in May - Montgomery Run, MD
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in May
Montgomery Run, MD

Average rainfall days in May - Montgomery Run, MD
  • Average rainfall days in May: 18 days

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

Average snowfall in May
Montgomery Run, MD

Average snowfall in May - Montgomery Run, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Montgomery Run, MD

Average snowfall days in May - Montgomery Run, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (4.6 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
Montgomery Run, MD

Average daylight in May / Average sunshine in May - Montgomery Run, 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 months with the least sunshine are January and February (Average sunshine: 5h and 6min).

Average sunshine days in May
Montgomery Run, MD

Average sunshine days in May - Montgomery Run, MD
  • Average sunshine days in May: 11 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).

Average UV index in May
Montgomery Run, MD

Average UV index in May - Montgomery Run, 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
Montgomery Run, MD

Average cloud cover in May - Montgomery Run, 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
Montgomery Run, MD

Average visibility in May - Montgomery Run, 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).

Montgomery Run, Maryland, USA

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