April weather forecastDelphi, PA

April

Weather in April

April is a refreshing spring month in Delphi, Pennsylvania, with an average temperature fluctuating between 42.1°F (5.6°C) and 60.1°F (15.6°C).

Temperature

April's onset is marked by a temperature increase, moving from a frosty 47.5°F (8.6°C) in March to a moderate 60.1°F (15.6°C). Delphi records an average nighttime low of 42.1°F (5.6°C) in April.

Humidity

The months with the lowest humidity are April and July, with an average relative humidity of 75%.

Rainfall

In Delphi, during April, the rain falls for 11.6 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Delphi, during the entire year, the rain falls for 128.6 days and collects up to 15.16" (385mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Delphi, during April, snow falls for 0.3 days and regularly aggregates up to 0.12" (3mm) of snow. Throughout the year, there are 17 snowfall days, and 5.43" (138mm) of snow is accumulated.

Daylight

In April, the average length of the day is 13h and 18min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:26 pm. On the last day of April, sunrise is at 6:01 am and sunset at 7:56 pm EDT.

Sunshine

In April, the average sunshine is 8.1h.

UV index

In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 4 during April leads to these instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During April, Delphi experiences an average high-temperature of 60.1°F (15.6°C) and a low-temperature of 42.1°F (5.6°C).

April and July, with an average relative humidity of 75%, are the least humid months.

In April, the average relative humidity is 75%.

In Delphi, during April, the rain falls for 11.6 days and regularly aggregates up to 1.18" (30mm) of precipitation.

In Delphi, Pennsylvania, in April, snow falls for 0.3 days, with typically accumulated 0.12" (3mm) of snow.

The average day length in April is 13h and 18min.

In April, on the first day of the month, sunrise is at 6:44 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:56 pm EDT.

In Delphi, the average sunshine duration in April is 8.1h.

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Delphi, PA

  • Average high temperature in April: 60.1°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in April: 42.1°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average pressure in April
Delphi, 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
Delphi, PA

  • Average wind speed in April: 8mph

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

Average humidity in April
Delphi, PA

  • Average humidity in April: 75%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in April
Delphi, PA

  • Average rainfall in April: 1.18"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in April
Delphi, PA

  • Average rainfall days in April: 11.6 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in April
Delphi, PA

  • Average snowfall in April: 0.12"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in April
Delphi, PA

  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Delphi, PA

  • Average daylight in April: 13h and 18min

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 24min).

  • Average sunshine in April: 8h and 6min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in April
Delphi, PA

  • Average sunshine days in April: 16.3 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in April
Delphi, PA

  • Average UV index in April: 4

The months with the highest UV index are May, June, July and August (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
Delphi, PA

  • Average cloud cover in April: 46

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in April
Delphi, PA

  • Average visibility in April: 6mi

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