May weather forecast
Millerstown, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Millerstown, Pennsylvania, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 70.2°F (21.2°C).

Temperature

As May begins, there is an increase in the average high-temperature, moving from a refreshing 59.5°F (15.3°C) in April to a pleasant 70.2°F (21.2°C). Millerstown usually reports an average low-temperature of 50.2°F (10.1°C) during the month of May.

Humidity

In Millerstown, Pennsylvania, the average relative humidity in May is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 17.7 days and accumulates 3.11" (79mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Millerstown aggregates 0.2" (5mm) of snow. In Millerstown, during the entire year, snow falls for 32.9 days and aggregates up to 13.94" (354mm) of snow.

Daylight

In Millerstown, the average length of the day in May is 14h and 27min.
On the first day of May, sunrise is at 6:06 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:32 pm EDT.

Sunshine

In Millerstown, the average sunshine in May is 8.3h.

UV index

May through July, 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 hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 6 during May morphs into the following directions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Millerstown in May?

The average high-temperature, in May, in Millerstown, is 70.2°F (21.2°C), while the average low-temperature is 50.2°F (10.1°C).

What is the average humidity in May?

In May, the average relative humidity in Millerstown is 79%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 17.7 days and accumulates 3.11" (79mm) of precipitation.

How many days does it rain in May?

In Millerstown, in May, during 17.7 rainfall days, 3.11" (79mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Millerstown aggregates 0.2" (5mm) of snow.

What is the average length of the day in May?

In Millerstown, the average day length in May is 14h and 27min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:06 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:32 pm EDT.

How many hours of sunshine does Millerstown have in May?

The average sunshine duration in May is 8.3h.

What is the month with the highest UV index?

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

What is the UV index intensity in May?

The average daily maximum UV index in May is 6. A UV Index reading 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
Millerstown, PA

Average temperature in May - Millerstown, PA
  • Average high temperature in May: 70.2°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 (33.6°F).

  • Average low temperature in May: 50.2°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in May
Millerstown, PA

Average pressure in May - Millerstown, PA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in May
Millerstown, PA

Average wind speed in May - Millerstown, PA
  • Average wind speed in May: 5.9mph

The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in May
Millerstown, PA

Average humidity in May - Millerstown, PA
  • Average humidity in May: 79%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).

Average rainfall in May
Millerstown, PA

Average rainfall in May - Millerstown, PA
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (2.01").

Average rainfall days in May
Millerstown, PA

Average rainfall days in May - Millerstown, PA
  • 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
Millerstown, PA

Average snowfall in May - Millerstown, PA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Millerstown, PA

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

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Millerstown, PA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).

Average sunshine days in May
Millerstown, PA

Average sunshine days in May - Millerstown, PA
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in May
Millerstown, PA

Average UV index in May - Millerstown, PA
  • Average UV index in May: 6

The months with the highest UV index are May, June and July (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
Millerstown, PA

Average cloud cover in May - Millerstown, PA
  • Average cloud cover in May: 48

The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in May
Millerstown, PA

Average visibility in May - Millerstown, PA
  • Average visibility in May: 5mi

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

Millerstown, Pennsylvania, USA

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