May weather forecast
Waterville, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Waterville, Pennsylvania, with an average temperature fluctuating between 47.7°F (8.7°C) and 68.4°F (20.2°C).

Temperature

Waterville's May weather shows an increase in high-temperatures, moving from April's moderate 56.3°F (13.5°C) to an agreeable 68.4°F (20.2°C). In Waterville, May is marked by an average low-temperature of 47.7°F (8.7°C).

Humidity

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

Rainfall

In Waterville, in May, during 19 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Waterville, during the entire year, the rain falls for 181 days and collects up to 33.07" (840mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Waterville. During 0.2 snowfall days, in May, Waterville aggregates 0.31" (8mm) of snow. In Waterville, during the entire year, snow falls for 55.8 days and aggregates up to 25.63" (651mm) of snow.

Daylight

In May, the average length of the day in Waterville is 14h and 31min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:07 pm. On the last day of May, sunrise is at 5:38 am and sunset at 8:35 pm EDT.

Sunshine

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

UV index

In Waterville, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 5 in May translates into these instructions:
Take necessary precautions - Defending against sun damage is advocated. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What are May temperatures in Waterville?

The high-temperature in Waterville during May is 68.4°F (20.2°C) and the low-temperature is 47.7°F (8.7°C).

What is the average humidity in May in Waterville?

The average relative humidity in May in Waterville is 79%.

How much does it rain in Waterville in May?

In Waterville, Pennsylvania, during May, the rain falls for 19 days and regularly aggregates up to 3.39" (86mm) of precipitation.

What is the last month it snows in Waterville?

May is the last month it regularly snows in Waterville, Pennsylvania. During 0.2 snowfall days, in May, Waterville aggregates 0.31" (8mm) of snow.

How many hours of daylight does Waterville have in May?

The average day length in May in Waterville, Pennsylvania, is 14h and 31min.

What time are sunrise and sunset in May in Waterville?

In May, on the first day of the month, sunrise is at 6:05 am and sunset at 8:07 pm. On the last day of the month, in Waterville, Pennsylvania, sunrise is at 5:38 am and sunset at 8:35 pm EDT.

How many hours of sunshine does Waterville have in May?

The average sunshine duration in May in Waterville is 8.3h.

What is the UV index reading in May in Waterville?

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Waterville, PA

Average temperature in May - Waterville, PA
  • Average high temperature in May: 68.4°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in May: 47.7°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in May
Waterville, PA

Average pressure in May - Waterville, 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 (29.94"Hg).

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Average wind speed in May
Waterville, PA

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

The windiest months (with the highest average wind speed) are January and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in May
Waterville, PA

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

The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April and July (77%).

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Average rainfall in May
Waterville, PA

Average rainfall in May - Waterville, PA
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is November (2.17").

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Average rainfall days in May
Waterville, PA

Average rainfall days in May - Waterville, PA
  • Average rainfall days in May: 19 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (10.8 days).

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Average snowfall in May
Waterville, PA

Average snowfall in May - Waterville, PA
  • Average snowfall in May: 0.31"

The month with the highest snowfall is February (7.05").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Waterville, PA

Average snowfall days in May - Waterville, PA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in May
Waterville, PA

Average sunshine days in May - Waterville, PA
  • Average sunshine days in May: 9.5 days

The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (8.5 days).

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Average UV index in May
Waterville, PA

Average UV index in May - Waterville, PA
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Waterville, PA

Average cloud cover in May - Waterville, PA
  • Average cloud cover in May: 49

The months with the most cloud cover are January, February and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).

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Average visibility in May
Waterville, PA

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

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).

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Waterville, Pennsylvania, USA

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