May weather forecast
Catonsville, MD

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Weather in May

May, the last month of the spring in Catonsville, is a pleasant month, with temperature in the range of an average low of 55.2°F (12.9°C) and an average high of 72.5°F (22.5°C).

Temperature

Catonsville's May weather shows an increase in high-temperatures, moving from April's enjoyable 63.1°F (17.3°C) to a pleasant 72.5°F (22.5°C). Throughout the May nights, Catonsville encounters a low-temperature of 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, the rain falls for 18.2 days. Throughout May, 3.11" (79mm) of precipitation is accumulated. Throughout the year, there are 165.5 rainfall days, and 31.65" (804mm) of precipitation is accumulated.

Snowfall

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

Daylight

In May, the average length of the day 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, sunrise is at 5:42 am and sunset at 8:27 pm EDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during May leads to these advisories:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Catonsville in May?

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

What are the most humid months?

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

What is the average humidity in May?

In May, the average relative humidity is 77%.

How much does it rain in May?

In Catonsville, in May, it is raining for 18.2 days, with typically 3.11" (79mm) of accumulated precipitation.

When it does not snow in Catonsville?

In Catonsville, Maryland, 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.

How many hours of daylight does Catonsville have in May?

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

When are sunrise and sunset in May?

In May, on the first day of the month, 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 many hours of sunshine does Catonsville have in May?

The average sunshine duration in May is 8.9h.

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 May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Catonsville, MD

Average temperature in May - Catonsville, 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).

Average pressure in May
Catonsville, MD

Average pressure in May - Catonsville, 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
Catonsville, MD

Average wind speed in May - Catonsville, 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).

Average humidity in May
Catonsville, MD

Average humidity in May - Catonsville, 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%).

Average rainfall in May
Catonsville, MD

Average rainfall in May - Catonsville, 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").

Average rainfall days in May
Catonsville, MD

Average rainfall days in May - Catonsville, 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).

Average snowfall in May
Catonsville, MD

Average snowfall in May - Catonsville, 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").

Average snowfall days in May
Catonsville, MD

Average snowfall days in May - Catonsville, 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).

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

Average daylight in May / Average sunshine in May - Catonsville, 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).

Average sunshine days in May
Catonsville, MD

Average sunshine days in May - Catonsville, 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).

Average UV index in May
Catonsville, MD

Average UV index in May - Catonsville, 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
Catonsville, MD

Average cloud cover in May - Catonsville, 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).

Average visibility in May
Catonsville, MD

Average visibility in May - Catonsville, 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).

Catonsville, Maryland, USA

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