May weather forecast
Monticello, PA

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Weather in May

May, the last month of the spring in Monticello, is an agreeable month, with an average temperature ranging between min 48.7°F (9.3°C) and max 68.4°F (20.2°C).

Temperature

As April transitions into May, a change in temperatures is observed, with average highs moving from a mild 56.5°F (13.6°C) to a pleasant 68.4°F (20.2°C). An average low-temperature of 48.7°F (9.3°C) marks the month of May.

Humidity

The average relative humidity in May is 80%.

Rainfall

The months with the most rainfall are April and May, with an average 2.99" (76mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Monticello aggregates 0.28" (7mm) of snow. In Monticello, during the entire year, snow falls for 47.6 days and aggregates up to 22.91" (582mm) of snow.

Daylight

In Monticello, Pennsylvania, the average length of the day in May is 14h and 29min.
On the first day of May, sunrise is at 6:01 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:30 pm EDT.

Sunshine

In Monticello, the average sunshine in May is 8.2h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 5 in May translates into this advice:
Take necessary precautions - Defending against sun damage is advocated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

In May, the average high-temperature and low-temperature are 68.4°F (20.2°C) and 48.7°F (9.3°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 80%.

What is the wettest month?

The months with the most rainfall are April and May, with an average 2.99" (76mm) of precipitation.

How much does it rain in May?

In Monticello, during May, the rain falls for 17.8 days and regularly aggregates up to 2.99" (76mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows in Monticello. During 0.3 snowfall days, in May, Monticello aggregates 0.28" (7mm) of snow.

How many hours of daylight does Monticello have in May?

In Monticello, the average day length in May is 14h and 29min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:30 pm EDT.

How many hours of sunshine does Monticello have in May?

The average sunshine duration in May is 8.2h.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index intensity in May in Monticello?

In Monticello, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Monticello, PA

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

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in May
Monticello, PA

Average pressure in May - Monticello, 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).

Average wind speed in May
Monticello, PA

Average wind speed in May - Monticello, PA
  • Average wind speed in May: 6.4mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in May
Monticello, PA

Average humidity in May - Monticello, PA
  • Average humidity in May: 80%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).

Average rainfall in May
Monticello, PA

Average rainfall in May - Monticello, PA
  • Average rainfall in May: 2.99"

The wettest months (with the highest rainfall) are April and May (2.99").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in May
Monticello, PA

Average rainfall days in May - Monticello, 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 (9.3 days).

Average snowfall in May
Monticello, PA

Average snowfall in May - Monticello, PA
  • Average snowfall in May: 0.28"

The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Monticello, PA

Average snowfall days in May - Monticello, PA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Monticello, 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 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in May
Monticello, PA

Average sunshine days in May - Monticello, PA
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.8 days).

Average UV index in May
Monticello, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Monticello, PA

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

The months with the most cloud cover are February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in May
Monticello, PA

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

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

Monticello, Pennsylvania, USA

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