May weather forecast
Lock Haven, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Lock Haven, Pennsylvania, with an average temperature fluctuating between 47.8°F (8.8°C) and 68.9°F (20.5°C).

Temperature

The start of May brings a rise in the average high-temperature, moving from a mild 56.7°F (13.7°C) in April to a pleasant 68.9°F (20.5°C). Throughout May, Lock Haven anticipates an average low-temperature of 47.8°F (8.8°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

In Lock Haven, during May, the rain falls for 18.7 days and regularly aggregates up to 3.43" (87mm) of precipitation. Throughout the year, in Lock Haven, Pennsylvania, there are 174.7 rainfall days, and 32.09" (815mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Lock Haven are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Lock Haven aggregates 0.16" (4mm) of snow. Throughout the year, there are 56.1 snowfall days, and 24.84" (631mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 31min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:07 pm. On the last day of May, in Lock Haven, Pennsylvania, sunrise is at 5:39 am and sunset at 8:35 pm EDT.

Sunshine

In May, the average sunshine is 8.1h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In May, a regular UV index of 5 translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What are the temperatures in Lock Haven in May?

May temperatures in Lock Haven, Pennsylvania, vary between a high-temperature of 68.9°F (20.5°C) and a low-temperature of 47.8°F (8.8°C).

What is the average humidity in May in Lock Haven?

In May, the average relative humidity is 79%.

How many days does it rain in May in Lock Haven?

In Lock Haven, in May, during 18.7 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

What is the last month it snows in Lock Haven?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Lock Haven aggregates 0.16" (4mm) of snow.

How many hours of daylight does Lock Haven have in May?

In Lock Haven, Pennsylvania, the average day length in May is 14h and 31min.

When are sunrise and sunset in May in Lock Haven?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 8:07 pm. On the last day of the month, in Lock Haven, sunrise is at 5:39 am and sunset at 8:35 pm EDT.

How many hours of sunshine does Lock Haven have in May?

In May, the average sunshine duration in Lock Haven, Pennsylvania, is 8.1h.

What is the UV index reading in May in Lock Haven?

In Lock Haven, Pennsylvania, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Lock Haven, PA

Average temperature in May - Lock Haven, PA
  • Average high temperature in May: 68.9°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in May: 47.8°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 (18.3°F).

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Average pressure in May
Lock Haven, PA

Average pressure in May - Lock Haven, 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).

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Average wind speed in May
Lock Haven, PA

Average wind speed in May - Lock Haven, 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
Lock Haven, PA

Average humidity in May - Lock Haven, 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, June and July (77%).

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Average rainfall in May
Lock Haven, PA

Average rainfall in May - Lock Haven, PA
  • Average rainfall in May: 3.43"

The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is November (2.09").

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Average rainfall days in May
Lock Haven, PA

Average rainfall days in May - Lock Haven, PA
  • Average rainfall days in May: 18.7 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (10.3 days).

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Average snowfall in May
Lock Haven, PA

Average snowfall in May - Lock Haven, PA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (7.13").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Lock Haven, PA

Average snowfall days in May - Lock Haven, PA
  • Average snowfall days in May: 0.3 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
Lock Haven, PA

Average daylight in May / Average sunshine in May - Lock Haven, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days in May
Lock Haven, PA

Average sunshine days in May - Lock Haven, PA
  • Average sunshine days in May: 9.9 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (8.8 days).

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Average UV index in May
Lock Haven, PA

Average UV index in May - Lock Haven, 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
Lock Haven, PA

Average cloud cover in May - Lock Haven, PA
  • Average cloud cover in May: 51

The months with the most cloud cover are January and December (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in May
Lock Haven, PA

Average visibility in May - Lock Haven, PA
  • Average visibility in May: 5mi

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

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Lock Haven, Pennsylvania, USA

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