May weather forecast
Grimes, VA

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Weather in May

The last month of the spring, May, is an agreeable month in Grimes, Virginia, with an average temperature fluctuating between 52.2°F (11.2°C) and 73°F (22.8°C).

Temperature

The start of May brings a shift in the average high-temperature, increasing from April's comfortable 63.3°F (17.4°C) to a pleasant 73°F (22.8°C). Grimes records a mean low-temperature of 52.2°F (11.2°C) in May.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 18.6 days and typically aggregates up to 3.23" (82mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Grimes aggregates 0.12" (3mm) of snow. In Grimes, during the entire year, snow falls for 26.2 days and aggregates up to 17.83" (453mm) of snow.

Daylight

The average length of the day in May is 14h and 21min.
On the first day of May, sunrise is at 6:12 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:32 pm EDT.

Sunshine

In May, the average sunshine 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 of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the UV index of 6 transforms into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Grimes in May?

The high-temperature, in May, in Grimes, records 73°F (22.8°C), while the low-temperature is 52.2°F (11.2°C).

What is the average humidity in May?

The average relative humidity in May is 77%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 18.6 days and accumulates 3.23" (82mm) of precipitation.

How much does it rain in May?

In Grimes, in May, it is raining for 18.6 days, with typically 3.23" (82mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Grimes aggregates 0.12" (3mm) of snow.

How many hours of daylight does Grimes have in May?

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

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:12 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:32 pm EDT.

How long on average sun shines in May in Grimes?

The average sunshine duration in May is 9h.

When is the highest UV index?

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

How high is the UV index in May?

In Grimes, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Grimes, VA

Average temperature in May - Grimes, VA
  • Average high temperature in May: 73°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in May: 52.2°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in May
Grimes, VA

Average pressure in May - Grimes, VA
  • 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 (29.95"Hg).

Average wind speed in May
Grimes, VA

Average wind speed in May - Grimes, VA
  • Average wind speed in May: 5.6mph

The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in May
Grimes, VA

Average humidity in May - Grimes, VA
  • Average humidity in May: 77%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is July (73%).

Average rainfall in May
Grimes, VA

Average rainfall in May - Grimes, VA
  • Average rainfall in May: 3.23"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.97").

Average rainfall days in May
Grimes, VA

Average rainfall days in May - Grimes, VA
  • Average rainfall days in May: 18.6 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in May
Grimes, VA

Average snowfall in May - Grimes, VA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Grimes, VA

Average snowfall days in May - Grimes, VA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Grimes, VA

Average daylight in May / Average sunshine in May - Grimes, VA
  • 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 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in May
Grimes, VA

Average sunshine days in May - Grimes, VA
  • Average sunshine days in May: 10 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10 days).

Average UV index in May
Grimes, VA

Average UV index in May - Grimes, VA
  • 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
Grimes, VA

Average cloud cover in May - Grimes, VA
  • Average cloud cover in May: 43

The months with the most cloud cover are February, March and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Grimes, VA

Average visibility in May - Grimes, VA
  • Average visibility in May: 5mi

The months with the highest visibility are February, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, March, May, September and October (5mi).

Grimes, Virginia, USA

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