May weather forecast
Butztown, PA

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Weather in May

The last month of the spring, May, is a pleasant month in Butztown, Pennsylvania, with an average temperature varying between 50.5°F (10.3°C) and 69.6°F (20.9°C).

Temperature

May indicates a change in the average high-temperature, moving up from a moderate 58.6°F (14.8°C) in April to a pleasant 69.6°F (20.9°C). Butztown records an average low of 50.5°F (10.3°C) throughout the nights in May.

Humidity

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

Rainfall

In Butztown, during May, the rain falls for 17.8 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 153 rainfall days, and 26.81" (681mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Butztown aggregates 0.12" (3mm) of snow. In Butztown, during the entire year, snow falls for 26.7 days and aggregates up to 14.49" (368mm) of snow.

Daylight

The average length of the day in May is 14h and 28min.
On the first day of May, sunrise is at 5:58 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:25 pm EDT.

Sunshine

In May, the average sunshine 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 radiation for ordinary individuals.
Note: The UV index of 6 during May leads to these advisories:
Fend off overexposure. Sun protection is vital. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

What are May temperatures?

In May, the average high-temperature and low-temperature are 69.6°F (20.9°C) and 50.5°F (10.3°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 79%.

How much does it rain in Butztown in May?

In May, the rain falls for 17.8 days. Throughout May, 2.72" (69mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Butztown aggregates 0.12" (3mm) of snow.

How many hours of daylight does Butztown have in May?

In Butztown, the average day length in May is 14h and 28min.

When is the sunrise / sunset in May in Butztown?

On the first day of May, sunrise is at 5:58 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:25 pm EDT.

How many hours of sunshine does Butztown have in May?

In Butztown, the average sunshine duration in May is 8.3h.

What is the month with the highest UV index?

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

What is the UV index intensity in May?

In Butztown, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe 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
Butztown, PA

Average temperature in May - Butztown, PA
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in May
Butztown, PA

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

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Butztown, PA

Average wind speed in May - Butztown, PA
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in May
Butztown, PA

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

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall in May
Butztown, PA

Average rainfall in May - Butztown, PA
  • Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in May
Butztown, PA

Average rainfall days in May - Butztown, PA
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in May
Butztown, PA

Average snowfall in May - Butztown, PA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Butztown, PA

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

The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Butztown, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in May
Butztown, PA

Average sunshine days in May - Butztown, PA
  • Average sunshine days in May: 11 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).

Average UV index in May
Butztown, PA

Average UV index in May - Butztown, 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
Butztown, PA

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

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in May
Butztown, PA

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

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

Butztown, Pennsylvania, USA

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