April weather forecast
Frederick, MD

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A stone bridge over the calm Carroll Creek in the Carroll Creek Linear Park in Frederick, Maryland
A stone bridge over the calm Carroll Creek in the Carroll Creek Linear Park in Frederick, Maryland

Weather in April

April is a transitional month in Frederick, Maryland, characterized by warmer temperatures, blooming flowers, and more sunshine hours. The most significant change is the absence of snow, hitting a mere 0.04" (1mm) compared to March. The city begins to bask in the warmth of Spring, with the frequent rains breathing life into the lush landscapes. There is a substantial leap in the daytime hours compared to March, implementing an inviting outdoor environment. The drying winds and reduced cloud cover pave the way for sunnier days.

Temperature

Noticing a change, the average high-temperature during April moves from March's cool 50.4°F (10.2°C) to a refreshing 62.6°F (17°C). Frederick's temperature drops to an average low of 43°F (6.1°C) during the nights of April.

Humidity

In April, the average relative humidity is 75%.

Rainfall

In Frederick, during April, the rain falls for 16.3 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 159.7 rainfall days, and 30.04" (763mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. In April, it is snowing for 0.1 days. Throughout April, 0.04" (1mm) of snow is accumulated. In Frederick, during the entire year, snow falls for 19.8 days and aggregates up to 11.46" (291mm) of snow.

Daylight

In April, the average length of the day is 13h and 16min.
On the first day of April in Frederick, sunrise is at 6:52 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:02 pm EDT.

Sunshine

The average sunshine in April is 8.6h.

UV index

The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 4 during April translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in April?

Frederick in April has an average high-temperature of 62.6°F (17°C) and an average low-temperature of 43°F (6.1°C).

What is the average humidity in April?

The average relative humidity in April is 75%.

How many days does it rain in April?

In Frederick, during April, the rain falls for 16.3 days and regularly aggregates up to 2.6" (66mm) of precipitation.

How much does it snow in April?

In April, it is snowing for 0.1 days. Throughout April, 0.04" (1mm) of snow is accumulated.

How many hours of daylight does Frederick have in April?

In Frederick, Maryland, the average day length in April is 13h and 16min.

What time are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:52 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:02 pm EDT.

How long on average sun shines in April?

In April, the average sunshine duration is 8.6h.

What is the UV index reading in April in Frederick?

In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Frederick, MD

Average temperature in April - Frederick, MD
  • Average high temperature in April: 62.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in April: 43°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

Average pressure in April
Frederick, MD

Average pressure in April - Frederick, MD
  • Average pressure in April: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in April
Frederick, MD

Average wind speed in April - Frederick, MD
  • Average wind speed in April: 7.7mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in April
Frederick, MD

Average humidity in April - Frederick, MD
  • Average humidity in April: 75%

The months with the highest relative humidity are May, October and December (79%).
The month with the lowest relative humidity is July (74%).

Average rainfall in April
Frederick, MD

Average rainfall in April - Frederick, MD
  • Average rainfall in April: 2.6"

The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in April
Frederick, MD

Average rainfall days in April - Frederick, MD
  • Average rainfall days in April: 16.3 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in April
Frederick, MD

Average snowfall in April - Frederick, MD
  • Average snowfall in April: 0.04"

The month with the highest snowfall is January (3.66").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in April
Frederick, MD

Average snowfall days in April - Frederick, MD
  • Average snowfall days in April: 0.1 days

The months with the highest number of snowfall days are January and February (6.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in April /
Average sunshine in April
Frederick, MD

Average daylight in April / Average sunshine in April - Frederick, MD
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in April: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).

Average sunshine days in April
Frederick, MD

Average sunshine days in April - Frederick, MD
  • Average sunshine days in April: 12.4 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in April
Frederick, MD

Average UV index in April - Frederick, MD
  • 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, November and December (UV index 2).

Average cloud cover in April
Frederick, MD

Average cloud cover in April - Frederick, MD
  • Average cloud cover in April: 43

The months with the most cloud cover are January, February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in April
Frederick, MD

Average visibility in April - Frederick, MD
  • Average visibility in April: 6mi

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

Frederick, Maryland, USA

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