Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The onset of May brings a rise in the average high-temperature, elevating from a comfortable 62.1°F (16.7°C) in April to a pleasant 71.4°F (21.9°C). Twin Knolls observes an average low-temperature of 54.1°F (12.3°C) during May.Humidity
May is the most humid month, with an average relative humidity of 80%.Rainfall
In May, the rain falls for 17.7 days. Throughout May, 3.19" (81mm) of precipitation is accumulated. In Twin Knolls, during the entire year, the rain falls for 158.9 days and collects up to 31.38" (797mm) of precipitation.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 the month, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:28 pm EDT.
Sunshine
In May, the average sunshine in Twin Knolls, Maryland, 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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In May, an average UV index of 6 transforms into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the most humid month?
What is the average humidity in May in Twin Knolls?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Twin Knolls have in May?
When is the highest UV index?
How high is the UV index in May?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Twin Knolls, Maryland, USA
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