May weather forecast
Rockwell, MD

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Weather in May

May, the last month of the spring in Rockwell, is an agreeable month, with an average temperature varying between 55.2°F (12.9°C) and 72.5°F (22.5°C).

Temperature

The shift into May is marked by a rise in the average high-temperature, moving from April's refreshing 63.1°F (17.3°C) to a pleasant 72.5°F (22.5°C). The average temperature during May nights is registered at a cool 55.2°F (12.9°C).

Humidity

May and October, with an average relative humidity of 77%, are the most humid months.

Rainfall

In May, in Rockwell, the rain falls for 18.2 days. Throughout May, 3.11" (79mm) of precipitation is accumulated. Throughout the year, in Rockwell, Maryland, there are 165.5 rainfall days, and 31.65" (804mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Rockwell.

Daylight

In Rockwell, the average length of the day in May is 14h and 21min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:00 pm. On the last day of May, in Rockwell, Maryland, sunrise is at 5:42 am and sunset at 8:27 pm EDT.

Sunshine

In Rockwell, the average sunshine in May is 8.9h.

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 threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What is the usual temperature for Rockwell in May?

The high-temperature, in May, in Rockwell, is 72.5°F (22.5°C), while the low-temperature averages to 55.2°F (12.9°C).

What are the most humid months in Rockwell?

May and October, with an average relative humidity of 77%, are most humid months in Rockwell.

What is the average humidity in May in Rockwell?

In Rockwell, the average relative humidity in May is 77%.

How much does it rain in Rockwell in May?

In May, the rain falls for 18.2 days. Throughout May, 3.11" (79mm) of precipitation is accumulated.

When it does not snow in Rockwell?

May through October are months without snowfall.

Does it snow in Rockwell in May?

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

What is the average length of the day in May in Rockwell?

In Rockwell, Maryland, the average day length in May is 14h and 21min.

What time are sunrise and sunset in May in Rockwell?

On the first day of May, sunrise is at 6:07 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:27 pm EDT.

How long on average sun shines in May in Rockwell?

In May, the average sunshine duration in Rockwell is 8.9h.

What is the month with the highest UV index in Rockwell?

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

What is the UV index intensity in May in Rockwell?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes 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
Rockwell, MD

Average temperature in May - Rockwell, MD
  • Average high temperature in May: 72.5°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 (38.1°F).

  • Average low temperature in May: 55.2°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in May
Rockwell, MD

Average pressure in May - Rockwell, 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
Rockwell, MD

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

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in May
Rockwell, MD

Average humidity in May - Rockwell, MD
  • Average humidity in May: 77%

The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in May
Rockwell, MD

Average rainfall in May - Rockwell, MD
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in May
Rockwell, MD

Average rainfall days in May - Rockwell, MD
  • Average rainfall days in May: 18.2 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in May
Rockwell, MD

Average snowfall in May - Rockwell, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Rockwell, MD

Average snowfall days in May - Rockwell, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Rockwell, MD

Average daylight in May / Average sunshine in May - Rockwell, 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 5min

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).

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Average sunshine days in May
Rockwell, MD

Average sunshine days in May - Rockwell, MD
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

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Average UV index in May
Rockwell, MD

Average UV index in May - Rockwell, 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
Rockwell, MD

Average cloud cover in May - Rockwell, MD
  • Average cloud cover in May: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Rockwell, MD

Average visibility in May - Rockwell, 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).

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Rockwell, Maryland, USA

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