May weather forecast
Rock Anna, MD

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Weather in May

The last month of the spring, May, is a pleasant month in Rock Anna, Maryland, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 72.1°F (22.3°C).

Temperature

With the onset of May, Rock Anna's average high-temperature sees a rise, moving from April's enjoyable 62.8°F (17.1°C) to an agreeable 72.1°F (22.3°C). During May, Rock Anna experiences a consistent low-temperature average of 57.2°F (14°C).

Humidity

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

Rainfall

In Rock Anna, during May, the rain falls for 17.5 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Rock Anna, during the entire year, the rain falls for 156.2 days and collects up to 31.34" (796mm) of precipitation.

Snowfall

In Rock Anna, Maryland, snow does not fall in May through October.

Daylight

In Rock Anna, the average length of the day in May is 14h and 20min.
On the first day of May, sunrise is at 6:06 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:25 pm EDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 6 transforms into these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Rock Anna in May?

An average high-temperature, in May, in Rock Anna, is 72.1°F (22.3°C) and the average low-temperature is 57.2°F (14°C).

What is the most humid month?

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

What is the average humidity in May?

The average relative humidity in May in Rock Anna is 78%.

How many days does it rain in May?

In Rock Anna, in May, during 17.5 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

Does it snow in Rock Anna in May?

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

How many hours of daylight does Rock Anna have in May?

In May, the average day length is 14h and 20min.

What time are sunrise and sunset in May in Rock Anna?

On the first day of May, sunrise is at 6:06 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:25 pm EDT.

How many hours of sunshine does Rock Anna have in May?

In Rock Anna, the average sunshine duration in May is 9.1h.

When is the highest UV index?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Rock Anna, MD

Average temperature in May - Rock Anna, MD
  • Average high temperature in May: 72.1°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 (39.6°F).

  • Average low temperature in May: 57.2°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in May
Rock Anna, MD

Average pressure in May - Rock Anna, 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
Rock Anna, MD

Average wind speed in May - Rock Anna, MD
  • Average wind speed in May: 7.5mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in May
Rock Anna, MD

Average humidity in May - Rock Anna, 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
Rock Anna, MD

Average rainfall in May - Rock Anna, MD
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days in May
Rock Anna, MD

Average rainfall days in May - Rock Anna, MD
  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in May
Rock Anna, MD

Average snowfall in May - Rock Anna, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Rock Anna, MD

Average snowfall days in May - Rock Anna, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.4 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
Rock Anna, MD

Average daylight in May / Average sunshine in May - Rock Anna, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in May
Rock Anna, MD

Average sunshine days in May - Rock Anna, MD
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in May
Rock Anna, MD

Average UV index in May - Rock Anna, 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 and December (UV index 2).

Average cloud cover in May
Rock Anna, MD

Average cloud cover in May - Rock Anna, MD
  • Average cloud cover in May: 42

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
Rock Anna, MD

Average visibility in May - Rock Anna, 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).

Rock Anna, Maryland, USA

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