May weather forecast
Grindstone, PA

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Weather in May

The last month of the spring, May, is a pleasant month in Grindstone, Pennsylvania, with temperature in the range of an average low of 51.1°F (10.6°C) and an average high of 72.1°F (22.3°C).

Temperature

As April transitions into May, a change in temperatures is observed, with average highs moving from a refreshing 60.8°F (16°C) to an agreeable 72.1°F (22.3°C). Grindstone's temperature lowers to a mean of 51.1°F (10.6°C) during the nights in May.

Humidity

The average relative humidity in May is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 9.7 days and accumulates 0.71" (18mm) of precipitation.

Snowfall

In Grindstone, snow does not fall in May through October.

Daylight

The average length of the day in May is 14h and 25min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:52 am and sunset at 8:41 pm EDT.

Sunshine

In Grindstone, the average sunshine in May is 8.7h.

UV index

In Grindstone, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the UV index of 5 transforms into the following advice:
Ensure safety - Sun damage prevention is strongly urged. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Grindstone in May?

The high-temperature during May is 72.1°F (22.3°C) and the low-temperature is 51.1°F (10.6°C).

What is the average humidity in May?

The average relative humidity in May is 79%.

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 9.7 days and accumulates 0.71" (18mm) of precipitation.

How many days does it rain in May?

In May, the rain falls for 9.7 days. Throughout May, 0.71" (18mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

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 Grindstone have in May?

In May, the average day length is 14h and 25min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:18 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:41 pm EDT.

How long on average sun shines in May?

In Grindstone, the average sunshine duration in May is 8.7h.

How high is the UV index in May?

In Grindstone, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Grindstone, PA

Average temperature in May - Grindstone, PA
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in May: 51.1°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in May
Grindstone, PA

Average pressure in May - Grindstone, PA
  • Average pressure in May: 30"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
Grindstone, PA

Average wind speed in May - Grindstone, PA
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in May
Grindstone, PA

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

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July, August and November (77%).

Average rainfall in May
Grindstone, PA

Average rainfall in May - Grindstone, PA
  • Average rainfall in May: 0.71"

The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days in May
Grindstone, PA

Average rainfall days in May - Grindstone, PA
  • Average rainfall days in May: 9.7 days

The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is February (4 days).

Average snowfall in May
Grindstone, PA

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

The months with the highest snowfall are February and December (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Grindstone, PA

Average snowfall days in May - Grindstone, PA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Grindstone, PA
  • Average daylight in May: 14h and 2min

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 24min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in May
Grindstone, PA

Average sunshine days in May - Grindstone, PA
  • Average sunshine days in May: 17.6 days

The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (17.3 days).

Average UV index in May
Grindstone, PA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in May
Grindstone, PA

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

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in May
Grindstone, PA

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

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

Grindstone, Pennsylvania, USA

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