April weather forecast
Riderwood, MD

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Weather in April

April is a refreshing spring month in Riderwood, Maryland, with an average temperature varying between 62.6°F (17°C) and 45.1°F (7.3°C).

Temperature

As Riderwood welcomes April, the average high-temperature sees a rise, transitioning from a cool 50°F (10°C) in March to a comfortable 62.6°F (17°C). The average low-temperature, in April, in Riderwood, is a chilly 45.1°F (7.3°C).

Humidity

The least humid month is April, with an average relative humidity of 73%.

Rainfall

In Riderwood, in April, during 10.1 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Riderwood, Maryland, during the entire year, the rain falls for 102.3 days and collects up to 9.25" (235mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Riderwood. April is the last month it regularly snows. During 0.3 snowfall days, in April, Riderwood aggregates 0.08" (2mm) of snow. In Riderwood, during the entire year, snow falls for 12.1 days and aggregates up to 1.81" (46mm) of snow.

Daylight

The average length of the day in April is 13h and 16min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:30 pm. On the last day of April, sunrise is at 6:07 am and sunset at 7:59 pm EDT.

Sunshine

In April, the average sunshine in Riderwood is 8.7h.

UV index

In April, the average daily maximum UV index in Riderwood is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In April, the maximum UV index of 4 suggests this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What are April temperatures in Riderwood?

The average high-temperature, in April, in Riderwood, is 62.6°F (17°C), while the average low-temperature is 45.1°F (7.3°C).

What is the least humid month in Riderwood?

The least humid month in Riderwood, Maryland, is April, with an average relative humidity of 73%.

What is the average humidity in April in Riderwood?

In April, the average relative humidity in Riderwood is 73%.

How many days does it rain in April in Riderwood?

In Riderwood, Maryland, in April, during 10.1 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

What is the last month it snows in Riderwood?

April is the last month it regularly snows in Riderwood. During 0.3 snowfall days, in April, Riderwood aggregates 0.08" (2mm) of snow.

How many hours of daylight does Riderwood have in April?

The average day length in April in Riderwood, Maryland, is 13h and 16min.

When are sunrise and sunset in April in Riderwood?

In April, on the first day of the month, sunrise is at 6:49 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:59 pm EDT.

How long on average sun shines in April in Riderwood?

The average sunshine duration in April in Riderwood is 8.7h.

How high is the UV index in April in Riderwood?

In April, the average daily maximum UV index in Riderwood is 4. A UV Index reading of 3 to 5 represents 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
Riderwood, MD

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

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in April: 45.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in April
Riderwood, MD

Average pressure in April - Riderwood, 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 (29.94"Hg).

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Average wind speed in April
Riderwood, MD

Average wind speed in April - Riderwood, MD
  • Average wind speed in April: 8.8mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in April
Riderwood, MD

Average humidity in April - Riderwood, MD
  • Average humidity in April: 73%

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

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Average rainfall in April
Riderwood, MD

Average rainfall in April - Riderwood, MD
  • Average rainfall in April: 0.63"

The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in April
Riderwood, MD

Average rainfall days in April - Riderwood, MD
  • Average rainfall days in April: 10.1 days

The month with the highest number of rainy days is July (12.6 days).
The month with the least rainy days is January (5.2 days).

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Average snowfall in April
Riderwood, MD

Average snowfall in April - Riderwood, MD
  • Average snowfall in April: 0.08"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in April
Riderwood, MD

Average snowfall days in April - Riderwood, MD
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in April / Average sunshine in April - Riderwood, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in April
Riderwood, MD

Average sunshine days in April - Riderwood, MD
  • Average sunshine days in April: 18.4 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is July (15.2 days).

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Average UV index in April
Riderwood, MD

Average UV index in April - Riderwood, 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).

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Average cloud cover in April
Riderwood, MD

Average cloud cover in April - Riderwood, MD
  • Average cloud cover in April: 42

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in April
Riderwood, MD

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

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

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Riderwood, Maryland, USA

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