April weather forecast
Northampton, PA

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Weather in April

April in Northampton, Pennsylvania, is a mild spring month, with an average temperature fluctuating between 40.5°F (4.7°C) and 58.5°F (14.7°C).

Temperature

The shift into April is accompanied by a temperature increase, with the average high-temperature rising from a chilly 46°F (7.8°C) in March to a refreshing 58.5°F (14.7°C). Nighttime temperatures consistently average a wintry 40.5°F (4.7°C) during April.

Humidity

April and July, with an average relative humidity of 76%, are the least humid months.

Rainfall

In Northampton, during April, the rain falls for 15.3 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, 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. In Northampton, in April, snow falls for 0.3 days, with typically accumulated 0.2" (5mm) of snow. Throughout the year, there are 32.3 snowfall days, and 17.24" (438mm) of snow is accumulated.

Daylight

In Northampton, Pennsylvania, the average length of the day in April is 13h and 19min.
On the first day of April, sunrise is at 6:44 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:57 pm EDT.

Sunshine

The average sunshine in April is 7.9h.

UV index

The average daily maximum UV index in April in Northampton is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 4 in April suggests the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. It's recommended to limit sun exposure when its radiation is at its peak during midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

What is the temperature in April?

In Northampton, in April, the average high-temperature is 58.5°F (14.7°C), and the average low-temperature is 40.5°F (4.7°C).

What is the least humid month in Northampton?

The months with the lowest humidity are April and July, with an average relative humidity of 76%.

What is the average humidity in April?

In April, the average relative humidity is 76%.

How much does it rain in April?

In Northampton, in April, it is raining for 15.3 days, with typically 2.87" (73mm) of accumulated precipitation.

How much does it snow in April?

In April, in Northampton, it is snowing for 0.3 days. Throughout April, 0.2" (5mm) of snow is accumulated.

What is the average length of the day in April?

In Northampton, the average day length in April is 13h and 19min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:44 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:57 pm EDT.

How long on average sun shines in April?

In April, the average sunshine duration is 7.9h.

What is the UV index intensity in April?

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's 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 April
Northampton, PA

Average temperature in April - Northampton, PA
  • Average high temperature in April: 58.5°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 April: 40.5°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 April
Northampton, PA

Average pressure in April - Northampton, PA
  • Average pressure in April: 29.99"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 April
Northampton, PA

Average wind speed in April - Northampton, PA
  • Average wind speed in April: 7.9mph

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 April
Northampton, PA

Average humidity in April - Northampton, PA
  • Average humidity in April: 76%

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 April
Northampton, PA

Average rainfall in April - Northampton, PA
  • Average rainfall in April: 2.87"

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 April
Northampton, PA

Average rainfall days in April - Northampton, PA
  • Average rainfall days in April: 15.3 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 April
Northampton, PA

Average snowfall in April - Northampton, PA
  • Average snowfall in April: 0.2"

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 April
Northampton, PA

Average snowfall days in April - Northampton, PA
  • Average snowfall days in April: 0.3 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 April /
Average sunshine in April
Northampton, PA

Average daylight in April / Average sunshine in April - Northampton, PA
  • Average daylight in April: 13h 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 18min).

  • Average sunshine in April: 7h and 5min

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 April
Northampton, PA

Average sunshine days in April - Northampton, PA
  • Average sunshine days in April: 12.6 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 April
Northampton, PA

Average UV index in April - Northampton, PA
  • Average UV index in April: 4

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 April
Northampton, PA

Average cloud cover in April - Northampton, PA
  • Average cloud cover in April: 47

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 April
Northampton, PA

Average visibility in April - Northampton, PA
  • Average visibility in April: 6mi

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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