May weather forecast
Jermantown, VA

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Weather in May

The last month of the spring, May, is a warm month in Jermantown, Virginia, with an average temperature ranging between max 74.8°F (23.8°C) and min 55.9°F (13.3°C).

Temperature

Jermantown's weather in May shows a rise in the average high-temperature, moving up from April's comfortable 65.1°F (18.4°C) to a moderately hot 74.8°F (23.8°C). Jermantown's nights in May experience an average temperature drop to a moderate 55.9°F (13.3°C).

Humidity

In Jermantown, the average relative humidity in May is 76%.

Rainfall

In Jermantown, during May, the rain falls for 17.3 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Jermantown, during the entire year, the rain falls for 162 days and collects up to 31.65" (804mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day is 14h and 19min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:45 am and sunset at 8:28 pm EDT.

Sunshine

In May, the average sunshine in Jermantown 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 value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during May translates into the following guidance:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

Jermantown in May has an average high-temperature of 74.8°F (23.8°C) and an average low-temperature of 55.9°F (13.3°C).

What is the average humidity in May?

In Jermantown, the average relative humidity in May is 76%.

How much does it rain in May?

In May, the rain falls for 17.3 days. Throughout May, 3.11" (79mm) of precipitation is accumulated.

When it does not snow in Jermantown?

In Jermantown, snow does not fall in May through October.

Does it snow 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 Jermantown, the average day length in May is 14h and 19min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:10 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:28 pm EDT.

How long on average sun shines in May in Jermantown?

The average sunshine duration in May is 9.1h.

What are the months with the highest UV index?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index 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
Jermantown, VA

Average temperature in May - Jermantown, VA
  • Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in May: 55.9°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in May
Jermantown, VA

Average pressure in May - Jermantown, 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
Jermantown, VA

Average wind speed in May - Jermantown, VA
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in May
Jermantown, VA

Average humidity in May - Jermantown, VA
  • Average humidity in May: 76%

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

Average rainfall in May
Jermantown, VA

Average rainfall in May - Jermantown, VA
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in May
Jermantown, VA

Average rainfall days in May - Jermantown, VA
  • Average rainfall days in May: 17.3 days

The months with the highest number of rainy days are May and August (17.3 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in May
Jermantown, VA

Average snowfall in May - Jermantown, VA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Jermantown, VA

Average snowfall days in May - Jermantown, VA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.6 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
Jermantown, VA

Average daylight in May / Average sunshine in May - Jermantown, VA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
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 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).

Average sunshine days in May
Jermantown, VA

Average sunshine days in May - Jermantown, VA
  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in May
Jermantown, VA

Average UV index in May - Jermantown, 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
Jermantown, VA

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

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Jermantown, VA

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

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

Jermantown, Virginia, USA

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