May weather forecast
Cape Saint John, MD

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Weather in May

The last month of the spring, May, is a pleasant month in Cape Saint John, Maryland, with an average temperature ranging between max 71.2°F (21.8°C) and min 57.7°F (14.3°C).

Temperature

The beginning of May marks a shift in the average high-temperature, moving from April's enjoyable 62.2°F (16.8°C) to an agreeable 71.2°F (21.8°C). May brings an average low-temperature of 57.7°F (14.3°C) to Cape Saint John.

Humidity

May is the most humid month, with an average relative humidity of 78%.

Rainfall

In Cape Saint John, in May, it is raining for 13.8 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, in Cape Saint John, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in May in Cape Saint John is 14h and 19min.
On the first day of the month, sunrise is at 6:07 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:25 pm EDT.

Sunshine

The average sunshine in May is 9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 in May translates into these instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What is the temperature in May?

The average high-temperature, in May, in Cape Saint John, is 71.2°F (21.8°C), while the average low-temperature is 57.7°F (14.3°C).

What is the most humid month?

May is the most humid month, with an average relative humidity of 78%.

What is the average humidity in May in Cape Saint John?

The average relative humidity in May is 78%.

How much does it rain in May?

In Cape Saint John, in May, it is raining for 13.8 days, with typically 0.87" (22mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in May?

In May, the average day length is 14h and 19min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:25 pm EDT.

How long on average sun shines in May?

In Cape Saint John, the average sunshine duration in May is 9h.

What are the months with 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 Cape Saint John, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Cape Saint John, MD

Average temperature in May - Cape Saint John, MD
  • Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in May: 57.7°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in May
Cape Saint John, MD

Average pressure in May - Cape Saint John, MD
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Cape Saint John, MD

Average wind speed in May - Cape Saint John, MD
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in May
Cape Saint John, MD

Average humidity in May - Cape Saint John, MD
  • Average humidity in May: 78%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in May
Cape Saint John, MD

Average rainfall in May - Cape Saint John, MD
  • Average rainfall in May: 0.87"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in May
Cape Saint John, MD

Average rainfall days in May - Cape Saint John, MD
  • Average rainfall days in May: 13.8 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

Average snowfall in May
Cape Saint John, MD

Average snowfall in May - Cape Saint John, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Cape Saint John, MD

Average snowfall days in May - Cape Saint John, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.5 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
Cape Saint John, MD

Average daylight in May / Average sunshine in May - Cape Saint John, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in May
Cape Saint John, MD

Average sunshine days in May - Cape Saint John, MD
  • Average sunshine days in May: 14.7 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

Average UV index in May
Cape Saint John, MD

Average UV index in May - Cape Saint John, 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 and December (UV index 2).

Average cloud cover in May
Cape Saint John, MD

Average cloud cover in May - Cape Saint John, MD
  • Average cloud cover in May: 41

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in May
Cape Saint John, MD

Average visibility in May - Cape Saint John, 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).

Cape Saint John, Maryland, USA

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