May weather forecastRock Hall, MD
May
Weather in May
The last month of the spring, May, is a pleasant month in Rock Hall, Maryland, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 56.8°F (13.8°C).Temperature
The arrival of May signals an increase in the average high-temperature, moving from a comfortable 61.7°F (16.5°C) in April to a pleasant 70.9°F (21.6°C). During the month of May, the temperature generally drops to a low average of 56.8°F (13.8°C).Humidity
The most humid month is May, with an average relative humidity of 79%.Rainfall
In Rock Hall, in May, during 12.7 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Rock Hall, during the entire year, the rain falls for 120.1 days and collects up to 12.87" (327mm) of precipitation.Snowfall
May through November are months without snowfall in Rock Hall.Ocean temperature
In May, the average ocean temperature is 55.9°F (13.3°C).Note: Swimming in 55.9°F (13.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
The average length of the day in May in Rock Hall is 14h and 20min.On the first day of May, sunrise is at 6:05 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:24 pm EDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during May translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rock Hall, MD
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in May
Rock Hall, 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
Rock Hall, MD
- Average wind speed in May: 7.8mph
The windiest months (with the highest average wind speed) are January, February and March (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in May
Rock Hall, MD
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in May
Rock Hall, MD
- Average rainfall in May: 1.14"
The wettest months (with the highest rainfall) are July and August (1.81").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in May
Rock Hall, MD
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (5.6 days).
Average snowfall in May
Rock Hall, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in May
Rock Hall, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Rock Hall, MD
- Average sea temperature in May: 55.9°F
The best month for swimming (with the highest average sea temperature) is August (77.2°F).
The coldest month (with the lowest average sea temperature) is February (43.7°F).
Average daylight in May /
Average sunshine in May
Rock Hall, MD
- Average daylight in May: 14h and 18min
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 6min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in May
Rock Hall, MD
- Average sunshine days in May: 14.5 days
The months with the most sunshine days are January and November (21.9 days).
The month with the least sunshine days is July (14.1 days).
Average UV index in May
Rock Hall, 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
Rock Hall, MD
- Average cloud cover in May: 42
The months with the most cloud cover are February, March and December (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in May
Rock Hall, 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).
