May weather forecast
Upperco, MD

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Weather in May

The last month of the spring, May, is an agreeable month in Upperco, Maryland, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 71.4°F (21.9°C).

Temperature

With the onset of May, Upperco sees a temperature rise, with the average high-temperature moving from April's refreshing 62.1°F (16.7°C) to an agreeable 71.4°F (21.9°C). During the month of May, the temperature generally drops to a low average of 54.1°F (12.3°C).

Humidity

The most humid month is May, with an average relative humidity of 80%.

Rainfall

In Upperco, during May, the rain falls for 17.7 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Upperco, during the entire year, the rain falls for 158.9 days and collects up to 31.38" (797mm) of precipitation.

Snowfall

In Upperco, snow does not fall in May through September.

Daylight

The average length of the day in May is 14h and 22min.
On the first day of May, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:28 pm EDT.

Sunshine

The average sunshine in May is 8.4h.

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 threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during May leads to these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Upperco in May?

In Upperco, in May, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 54.1°F (12.3°C).

What is the most humid month?

May is the most humid month, with an average relative humidity of 80%.

What is the average humidity in May?

In Upperco, the average relative humidity in May is 80%.

How much does it rain in May?

In Upperco, in May, during 17.7 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When it does not snow?

In Upperco, snow does not fall in May through September.

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 May, the average day length is 14h and 22min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of the month, in Upperco, sunrise is at 5:41 am and sunset at 8:28 pm EDT.

How many hours of sunshine does Upperco have in May?

The average sunshine duration in May in Upperco, Maryland, is 8.4h.

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.

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 health vulnerability from exposure to the Sun's UV radiation.
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
Upperco, MD

Average temperature in May - Upperco, MD
  • Average high temperature in May: 71.4°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in May: 54.1°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in May
Upperco, MD

Average pressure in May - Upperco, 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
Upperco, MD

Average wind speed in May - Upperco, MD
  • Average wind speed in May: 6.9mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in May
Upperco, MD

Average humidity in May - Upperco, MD
  • Average humidity in May: 80%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).

Average rainfall in May
Upperco, MD

Average rainfall in May - Upperco, MD
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.89").

Average rainfall days in May
Upperco, MD

Average rainfall days in May - Upperco, MD
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in May
Upperco, MD

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

The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Upperco, MD

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

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Upperco, 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 24min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in May
Upperco, MD

Average sunshine days in May - Upperco, MD
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in May
Upperco, MD

Average UV index in May - Upperco, 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
Upperco, MD

Average cloud cover in May - Upperco, MD
  • Average cloud cover in May: 47

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in May
Upperco, MD

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

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

Upperco, Maryland, USA

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