April weather forecast and climate
Griggstown, NJ

April in Griggstown, New Jersey, is a mild spring month, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 43.3°F (6.3°C).

Temperature

In Griggstown, the average high-temperature in April increases, from a frosty 48.6°F (9.2°C) in March, to a moderate 60.4°F (15.8°C). In April, in Griggstown, the average low-temperature is 43.3°F (6.3°C).

Humidity

With an average relative humidity of 73%, April is the least humid month in Griggstown.

Rainfall

In Griggstown, in April, it is raining for 11.3 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, in Griggstown, there are 119.3 rainfall days, and 12.72" (323mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Griggstown, New Jersey, are January through May, November and December. In April, it is snowing for 0.3 days. Throughout April, 0.12" (3mm) of snow is accumulated. Throughout the year, there are 16.4 snowfall days, and 4.41" (112mm) of snow is accumulated.

Daylight

The average length of the day in April is 13.3h.

Sunshine

The average sunshine in Griggstown, New Jersey, is 8.3h.

UV index

The average daily maximum UV index in Griggstown is 4. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 4 interpret into the following advice:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in April in Griggstown?

The average high-temperature, in April, in Griggstown, New Jersey, is 60.4°F (15.8°C), while the average low-temperature is 43.3°F (6.3°C).

What is the least humid month in Griggstown?

April is the least humid month in Griggstown, New Jersey, with an average relative humidity of 73%.

What is the average humidity in April in Griggstown?

In Griggstown, New Jersey, the average relative humidity in April is 73%.

How many days does it rain in April in Griggstown?

In Griggstown, New Jersey, in April, during 11.3 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

How many days does it snow in April in Griggstown?

In Griggstown, New Jersey, during April, snow falls for 0.3 days and regularly aggregates up to 0.12" (3mm) of snow.

How many hours of daylight does Griggstown have in April?

The average length of the day in April is 13.3h.

How many hours of sunshine does Griggstown have in April?

In Griggstown, the average sunshine in April is 8.3h.

What is the UV index reading in April in Griggstown?

In April, the average daily maximum UV index in Griggstown, New Jersey, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in April - Griggstown, NJ
  • Average high temperature in April: 15.8°C

The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is January (2.7°C).

  • Average low temperature in April: 6.3°C

The month with the highest average low temperature is July (19.4°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).

Average pressure in April - Griggstown, NJ
  • Average pressure in April: 1015.5mbar

The month with the highest atmospheric pressure is November (1019.7mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in April - Griggstown, NJ
  • Average wind speed in April: 13.6km/h

The windiest month (with the highest average wind speed) is March (14.1km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).

Average humidity in April - Griggstown, NJ
  • Average humidity in April: 73%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in April - Griggstown, NJ
  • Average rainfall in April: 21mm

The wettest month (with the highest rainfall) is July (43mm).
The driest month (with the least rainfall) is September (17mm).

Average rainfall days in April - Griggstown, NJ
  • Average rainfall days in April: 11.3 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in April - Griggstown, NJ
  • Average snowfall in April: 3mm

The month with the highest snowfall is March (36mm).
Months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in April - Griggstown, NJ
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is January (4.6 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in April / Average sunshine in April - Griggstown, NJ
  • Average daylight in April: 13.3h

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 April: 8.3h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in April - Griggstown, NJ
  • Average sunshine days in April: 16.8 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in April - Griggstown, NJ
  • Average UV index in April: 4

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

Average cloud cover in April - Griggstown, NJ
  • Average cloud cover in April: 44

Months with the most cloud cover are February, March and December (Cloud cover 47).
Months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in April - Griggstown, NJ
  • Average visibility in April: 9km

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).