May weather forecast
Twin Knolls, MD

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Weather in May

The last month of the spring, May, is a pleasant month in Twin Knolls, Maryland, with an average temperature varying between 71.4°F (21.9°C) and 54.1°F (12.3°C).

Temperature

The shift into May brings an increase in the average high-temperature, moving from an enjoyable 62.1°F (16.7°C) in April to a pleasant 71.4°F (21.9°C). The average low-temperature in Twin Knolls during May nights is a fresh 54.1°F (12.3°C).

Humidity

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

Rainfall

In Twin Knolls, during May, the rain falls for 17.7 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, there are 158.9 rainfall days, and 31.38" (797mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Twin Knolls, the average length of the day in May is 14h and 22min.
On the first day of May, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:28 pm EDT.

Sunshine

In Twin Knolls, Maryland, the average sunshine in May is 8.4h.

UV index

The months with the highest UV index 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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What is the usual temperature for Twin Knolls in May?

The average high-temperature, in May, in Twin Knolls, is 71.4°F (21.9°C), while the average low-temperature is 54.1°F (12.3°C).

What is the most humid month in Twin Knolls?

The most humid month in Twin Knolls, Maryland, is May, with an average relative humidity of 80%.

What is the average humidity in May in Twin Knolls?

In Twin Knolls, Maryland, the average relative humidity in May is 80%.

How much does it rain in Twin Knolls in May?

In Twin Knolls, in May, during 17.7 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When it does not snow in Twin Knolls?

In Twin Knolls, snow does not fall in May through September.

Does it snow in Twin Knolls in May?

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

How many hours of daylight does Twin Knolls have in May?

In Twin Knolls, Maryland, the average day length in May is 14h and 22min.

When are sunrise and sunset in May in Twin Knolls?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of the month, in Twin Knolls, sunrise is at 5:42 am and sunset at 8:28 pm EDT.

How many hours of sunshine does Twin Knolls have in May?

In May, the average sunshine duration in Twin Knolls is 8.4h.

What is the month with the highest UV index in Twin Knolls?

The months with the highest UV index in Twin Knolls, Maryland, are May through August, with an average maximum UV index of 6.

What is the UV index reading in May in Twin Knolls?

The average daily maximum UV index in May in Twin Knolls is 6. A UV Index reading 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
Twin Knolls, MD

Average temperature in May - Twin Knolls, MD
  • Average high temperature in May: 71.4°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in May: 54.1°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in May
Twin Knolls, MD

Average pressure in May - Twin 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 (29.94"Hg).

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Average wind speed in May
Twin Knolls, MD

Average wind speed in May - Twin Knolls, MD
  • Average wind speed in May: 6.9mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in May
Twin Knolls, MD

Average humidity in May - Twin Knolls, MD
  • Average humidity in May: 80%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).

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Average rainfall in May
Twin Knolls, MD

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

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.89").

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Average rainfall days in May
Twin Knolls, MD

Average rainfall days in May - Twin 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).

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Average snowfall in May
Twin Knolls, MD

Average snowfall in May - Twin Knolls, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Twin Knolls, MD

Average snowfall days in May - Twin Knolls, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Twin Knolls, MD

Average daylight in May / Average sunshine in May - Twin 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 24min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in May
Twin Knolls, MD

Average sunshine days in May - Twin Knolls, MD
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).

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Average UV index in May
Twin Knolls, MD

Average UV index in May - Twin 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).

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Average cloud cover in May
Twin Knolls, MD

Average cloud cover in May - Twin Knolls, MD
  • Average cloud cover in May: 47

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in May
Twin Knolls, MD

Average visibility in May - Twin Knolls, MD
  • Average visibility in May: 5mi

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

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Twin Knolls, Maryland, USA

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