May weather forecast
Knoxville, MD

Share

Weather in May

May, the last month of the spring in Knoxville, is an agreeable month, with an average temperature fluctuating between 53.1°F (11.7°C) and 73.2°F (22.9°C).

Temperature

May's onset is marked by a temperature increase, moving from a comfortable 63.5°F (17.5°C) in April to a pleasant 73.2°F (22.9°C). Throughout May, the temperature tends to fall to a consistent average low of 53.1°F (11.7°C).

Humidity

In Knoxville, the average relative humidity in May is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 19.3 days and accumulates 3.35" (85mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Knoxville, the average length of the day in May is 14h and 21min.
On the first day of May, sunrise is at 6:10 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:31 pm EDT.

Sunshine

In Knoxville, Maryland, the average sunshine in May is 8.8h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In May, a regular UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

What are May temperatures in Knoxville?

In May, in Knoxville, the average high-temperature is 73.2°F (22.9°C), and the average low-temperature is 53.1°F (11.7°C).

What is the average humidity in May?

In Knoxville, the average relative humidity in May is 78%.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 19.3 days and typically aggregates up to 3.35" (85mm) of precipitation.

How much does it rain in May?

In Knoxville, in May, it is raining for 19.3 days, with typically 3.35" (85mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

Does it snow in May?

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

How many hours of daylight does Knoxville have in May?

The average day length in May is 14h and 21min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:10 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:31 pm EDT.

How many hours of sunshine does Knoxville have in May?

The average sunshine duration in May is 8.8h.

When is the highest UV index?

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

How high is the UV index in May?

In Knoxville, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Knoxville, MD

Average temperature in May - Knoxville, MD
  • Average high temperature in May: 73.2°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in May
Knoxville, MD

Average pressure in May - Knoxville, 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 (29.95"Hg).

Average wind speed in May
Knoxville, MD

Average wind speed in May - Knoxville, MD
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in May
Knoxville, MD

Average humidity in May - Knoxville, MD
  • Average humidity in May: 78%

The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in May
Knoxville, MD

Average rainfall in May - Knoxville, MD
  • Average rainfall in May: 3.35"

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is January (1.97").

Average rainfall days in May
Knoxville, MD

Average rainfall days in May - Knoxville, MD
  • Average rainfall days in May: 19.3 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in May
Knoxville, MD

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

The month with the highest snowfall is January (3.62").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Knoxville, MD

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

The month with the highest number of snowfall days is January (6.9 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
Knoxville, MD

Average daylight in May / Average sunshine in May - Knoxville, 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 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).

Average sunshine days in May
Knoxville, MD

Average sunshine days in May - Knoxville, MD
  • Average sunshine days in May: 10.7 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in May
Knoxville, MD

Average UV index in May - Knoxville, 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).

Average cloud cover in May
Knoxville, MD

Average cloud cover in May - Knoxville, MD
  • Average cloud cover in May: 45

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in May
Knoxville, MD

Average visibility in May - Knoxville, MD
  • Average visibility in May: 5mi

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

Knoxville, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location