May weather forecast
McSherrystown, PA

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Weather in May

The last month of the spring, May, is a pleasant month in McSherrystown, Pennsylvania, with an average temperature fluctuating between 52.3°F (11.3°C) and 71.1°F (21.7°C).

Temperature

May witnesses an increase in the average high-temperature, moving from an enjoyable 60.8°F (16°C) in April to an agreeable 71.1°F (21.7°C). The average temperature during May nights in McSherrystown is registered at a fresh 52.3°F (11.3°C).

Humidity

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

Rainfall

In McSherrystown, during May, the rain falls for 15.9 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 133.6 rainfall days, and 17.52" (445mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In McSherrystown, the average length of the day in May is 14h and 23min.
On the first day of May, sunrise is at 6:07 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:29 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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In May, the maximum UV index of 6 suggests this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.

Frequently asked questions

What is the usual temperature for McSherrystown in May?

McSherrystown in May has an average high-temperature of 71.1°F (21.7°C) and an average low-temperature of 52.3°F (11.3°C).

What is the most humid month?

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

What is the average humidity in May?

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

How many days does it rain in May?

In McSherrystown, during May, the rain falls for 15.9 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow?

In McSherrystown, 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.

How many hours of daylight does McSherrystown have in May?

The average day length in May is 14h and 23min.

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 8:02 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:29 pm EDT.

How many hours of sunshine does McSherrystown have in May?

The average sunshine duration in May is 8.4h.

When is 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 reading in May?

In McSherrystown, the average daily maximum UV index in May is 6. A UV Index estimate 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
McSherrystown, PA

Average temperature in May - McSherrystown, PA
  • Average high temperature in May: 71.1°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in May
McSherrystown, PA

Average pressure in May - McSherrystown, PA
  • 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
McSherrystown, PA

Average wind speed in May - McSherrystown, PA
  • Average wind speed in May: 6.7mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in May
McSherrystown, PA

Average humidity in May - McSherrystown, PA
  • Average humidity in May: 80%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in May
McSherrystown, PA

Average rainfall in May - McSherrystown, PA
  • Average rainfall in May: 1.97"

The wettest months (with the highest rainfall) are July and August (2.01").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in May
McSherrystown, PA

Average rainfall days in May - McSherrystown, PA
  • Average rainfall days in May: 15.9 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in May
McSherrystown, PA

Average snowfall in May - McSherrystown, PA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
McSherrystown, PA

Average snowfall days in May - McSherrystown, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
McSherrystown, PA

Average daylight in May / Average sunshine in May - McSherrystown, PA
  • 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in May
McSherrystown, PA

Average sunshine days in May - McSherrystown, PA
  • Average sunshine days in May: 13.1 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (13.1 days).

Average UV index in May
McSherrystown, PA

Average UV index in May - McSherrystown, PA
  • 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, March, November and December (UV index 2).

Average cloud cover in May
McSherrystown, PA

Average cloud cover in May - McSherrystown, PA
  • Average cloud cover in May: 46

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

Average visibility in May
McSherrystown, PA

Average visibility in May - McSherrystown, PA
  • 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).

McSherrystown, Pennsylvania, USA

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