May weather forecast
Carnegie, PA

Weather in May

May, the last month of the spring, in Carnegie, is a pleasant month, with average temperature ranging between max 72.3°F (22.4°C) and min 51.3°F (10.7°C).

Temperature

In May, the average high-temperature rises, from a mild 60.6°F (15.9°C) in April, to an agreeable 72.3°F (22.4°C). The average low-temperature, in Carnegie, is 51.3°F (10.7°C).

Humidity

The average relative humidity in Carnegie is 77%.

Rainfall

In Carnegie, in May, it is raining for 15.5 days, with typically 1.22" (31mm) of accumulated precipitation. In Carnegie, Pennsylvania, during the entire year, the rain falls for 132.6 days and collects up to 11.5" (292mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Carnegie, the average length of the day in May is 14.4h.

Sunshine

In Carnegie, the average sunshine is 8.9h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation for average individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in May in Carnegie?

In Carnegie, the average relative humidity in May is 77%.

How many days does it rain in May in Carnegie?

In Carnegie, Pennsylvania, during May, the rain falls for 15.5 days and regularly aggregates up to 1.22" (31mm) of precipitation.

When it does not snow in Carnegie?

In Carnegie, Pennsylvania, snow does not fall in May through October.

Does it snow in Carnegie in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Carnegie?

The average length of the day in May in Carnegie, Pennsylvania, is 14.4h.

How long on average sun shines in May in Carnegie?

The average sunshine in May in Carnegie is 8.9h.

How high is the UV index in May in Carnegie?

In Carnegie, Pennsylvania, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Carnegie, PA

Average temperature in May - Carnegie, PA
  • Average high temperature in May: 72.3°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in May: 51.3°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in May
Carnegie, PA

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

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

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Average wind speed in May
Carnegie, PA

Average wind speed in May - Carnegie, PA
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in May
Carnegie, PA

Average humidity in May - Carnegie, PA
  • Average humidity in May: 77%

The month with the highest relative humidity is February (85%).
Months with the lowest relative humidity are July and August (75%).

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Average rainfall in May
Carnegie, PA

Average rainfall in May - Carnegie, PA
  • Average rainfall in May: 1.22"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is November (0.67").

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Average rainfall days in May
Carnegie, PA

Average rainfall days in May - Carnegie, PA
  • Average rainfall days in May: 15.5 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (6.4 days).

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Average snowfall in May
Carnegie, PA

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

The month with the highest snowfall is February (0.98").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Carnegie, PA

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

The month with the highest number of snowfall days is January (9.3 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Carnegie, PA
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.9h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 3h).

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Average sunshine days in May
Carnegie, PA

Average sunshine days in May - Carnegie, PA
  • Average sunshine days in May: 12.2 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.2 days).

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Average UV index in May
Carnegie, PA

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

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Carnegie, PA

Average cloud cover in May - Carnegie, PA
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in May
Carnegie, PA

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

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

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