May weather forecast
Northampton, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Northampton, Pennsylvania, with an average temperature varying between 50.2°F (10.1°C) and 69.4°F (20.8°C).

Temperature

May brings a rise in the average high-temperature, transitioning from April's mild 58.5°F (14.7°C) to a pleasant 69.4°F (20.8°C). May nights experience a consistent temperature drop to a fresh 50.2°F (10.1°C).

Humidity

The average relative humidity in May in Northampton, Pennsylvania, is 79%.

Rainfall

In Northampton, Pennsylvania, in May, during 17.2 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, in Northampton, there are 162.5 rainfall days, and 31.69" (805mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Northampton aggregates 0.16" (4mm) of snow. In Northampton, during the entire year, snow falls for 32.3 days and aggregates up to 17.24" (438mm) of snow.

Daylight

In May, the average length of the day in Northampton is 14h and 28min.
On the first day of May in Northampton, sunrise is at 5:59 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:26 pm EDT.

Sunshine

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

UV index

In Northampton, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 5 in May leads to these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Frequently asked questions

What is the usual temperature for Northampton in May?

In May, in Northampton, the average high-temperature is 69.4°F (20.8°C), and the average low-temperature is 50.2°F (10.1°C).

What is the average humidity in May?

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

How many days does it rain in May?

In Northampton, in May, it is raining for 17.2 days, with typically 2.91" (74mm) of accumulated precipitation.

What is the last month it snows in Northampton?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Northampton aggregates 0.16" (4mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 28min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:26 pm EDT.

How long on average sun shines in May?

In Northampton, the average sunshine duration in May is 8.2h.

What is the UV index intensity in May?

In Northampton, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Northampton, PA

Average temperature in May - Northampton, PA
  • Average high temperature in May: 69.4°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in May: 50.2°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in May
Northampton, PA

Average pressure in May - Northampton, PA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Northampton, PA

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

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in May
Northampton, PA

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

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall in May
Northampton, PA

Average rainfall in May - Northampton, PA
  • Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in May
Northampton, PA

Average rainfall days in May - Northampton, PA
  • Average rainfall days in May: 17.2 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (9.9 days).

Average snowfall in May
Northampton, PA

Average snowfall in May - Northampton, PA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is March (4.88").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Northampton, PA

Average snowfall days in May - Northampton, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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 18min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in May
Northampton, PA

Average sunshine days in May - Northampton, PA
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (11.7 days).

Average UV index in May
Northampton, PA

Average UV index in May - Northampton, 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, November and December (UV index 2).

Average cloud cover in May
Northampton, PA

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in May
Northampton, PA

Average visibility in May - Northampton, 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).

Northampton, Pennsylvania, USA

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