May weather forecast
Cedar Grove Knolls, MD

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Weather in May

The last month of the spring, May, is a pleasant month in Cedar Grove Knolls, Maryland, with an average temperature ranging between max 72.7°F (22.6°C) and min 54.5°F (12.5°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a refreshing 63°F (17.2°C) in April to a pleasant 72.7°F (22.6°C). Throughout May nights, Cedar Grove Knolls experiences a consistent temperature average of 54.5°F (12.5°C).

Humidity

May and October, with an average relative humidity of 79%, are the most humid months.

Rainfall

In Cedar Grove Knolls, in May, it is raining for 17.7 days, with typically 3.19" (81mm) of accumulated precipitation. In Cedar Grove Knolls, during the entire year, the rain falls for 158.7 days and collects up to 30.91" (785mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Cedar Grove Knolls aggregates 0.2" (5mm) of snow. In Cedar Grove Knolls, during the entire year, snow falls for 21.3 days and aggregates up to 13.31" (338mm) of snow.

Daylight

The average length of the day in May is 14h and 20min.
On the first day of May, sunrise is at 6:09 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:29 pm EDT.

Sunshine

In May, the average sunshine is 8.7h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 in May translates into these instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

What are the temperatures in May?

In May, in Cedar Grove Knolls, the average high-temperature is 72.7°F (22.6°C), and the average low-temperature is 54.5°F (12.5°C).

What is the most humid month?

May and October, with an average relative humidity of 79%, are most humid months in Cedar Grove Knolls.

What is the average humidity in May?

In May, the average relative humidity is 79%.

How many days does it rain in May?

In Cedar Grove Knolls, during May, the rain falls for 17.7 days and regularly aggregates up to 3.19" (81mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Cedar Grove Knolls aggregates 0.2" (5mm) of snow.

How many hours of daylight does Cedar Grove Knolls have in May?

In Cedar Grove Knolls, the average day length in May is 14h and 20min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:09 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:29 pm EDT.

How many hours of sunshine does Cedar Grove Knolls have in May?

In Cedar Grove Knolls, the average sunshine duration in May is 8.7h.

When is 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 reading in May?

In Cedar Grove Knolls, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Cedar Grove Knolls, MD

Average temperature in May - Cedar Grove Knolls, MD
  • Average high temperature in May: 72.7°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 (37.8°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in May
Cedar Grove Knolls, MD

Average pressure in May - Cedar Grove Knolls, 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 (29.95"Hg).

Average wind speed in May
Cedar Grove Knolls, MD

Average wind speed in May - Cedar Grove Knolls, MD
  • Average wind speed in May: 6.4mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in May
Cedar Grove Knolls, MD

Average humidity in May - Cedar Grove Knolls, MD
  • Average humidity in May: 79%

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in May
Cedar Grove Knolls, MD

Average rainfall in May - Cedar Grove Knolls, MD
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days in May
Cedar Grove Knolls, MD

Average rainfall days in May - Cedar Grove Knolls, MD
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in May
Cedar Grove Knolls, MD

Average snowfall in May - Cedar Grove Knolls, MD
  • Average snowfall in May: 0.2"

The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Cedar Grove Knolls, MD

Average snowfall days in May - Cedar Grove Knolls, MD
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Cedar Grove Knolls, MD

Average daylight in May / Average sunshine in May - Cedar Grove Knolls, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in May
Cedar Grove Knolls, MD

Average sunshine days in May - Cedar Grove Knolls, MD
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in May
Cedar Grove Knolls, MD

Average UV index in May - Cedar Grove Knolls, 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
Cedar Grove Knolls, MD

Average cloud cover in May - Cedar Grove Knolls, MD
  • Average cloud cover in May: 44

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Cedar Grove Knolls, MD

Average visibility in May - Cedar Grove Knolls, 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).

Cedar Grove Knolls, Maryland, USA

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