January weather forecast
Riverdale Gardens, MD

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Weather in January

January, the same as December, is a wintry winter month in Riverdale Gardens, Maryland, with an average temperature fluctuating between 27.7°F (-2.4°C) and 39.9°F (4.4°C).

Temperature

In Riverdale Gardens, the lowest average temperatures are observed in January, with a high of 39.9°F (4.4°C) and a low of 27.7°F (-2.4°C).

Humidity

In January, the average relative humidity is 72%.

Rainfall

The month with the least rainfall is January, when the rain falls for 9.3 days and typically collects 2.01" (51mm) of precipitation.

Snowfall

January through April and December are months with snowfall. January is the month with the most snowfall in Riverdale Gardens. Snow falls for 4.1 days and accumulates 2.6" (66mm) of snow.

Daylight

In January, the average length of the day is 9h and 48min.
On the first day of January in Riverdale Gardens, sunrise is at 7:26 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:27 pm EST.

Sunshine

The average sunshine in January in Riverdale Gardens is 5.1h.

UV index

The months with the lowest UV index in Riverdale Gardens are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. 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. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are the coldest months in Riverdale Gardens?

Temperature readings in Riverdale Gardens, Maryland, reach their annual highs in January, averaging 39.9°F (4.4°C) and a minimum average of 27.7°F (-2.4°C).

How cold is it in Riverdale Gardens in January?

In January, the average high-temperature and low-temperature in Riverdale Gardens are 39.9°F (4.4°C) and 27.7°F (-2.4°C) respectively.

What is the average humidity in January in Riverdale Gardens?

In Riverdale Gardens, the average relative humidity in January is 72%.

What is the driest month in Riverdale Gardens?

January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 2.01" (51mm) of precipitation.

How much does it rain in Riverdale Gardens in January?

In January, in Riverdale Gardens, the rain falls for 9.3 days. Throughout January, 2.01" (51mm) of precipitation is accumulated.

What is the snowiest month in Riverdale Gardens?

January is the month with the most snowfall in Riverdale Gardens, Maryland. Snow falls for 4.1 days and accumulates 2.6" (66mm) of snow.

How many days does it snow in January in Riverdale Gardens?

In Riverdale Gardens, Maryland, in January, during 4.1 snowfall days, 2.6" (66mm) of snow is typically accumulated.

What is the average length of the day in January in Riverdale Gardens?

The average day length in January in Riverdale Gardens is 9h and 48min.

When is the sunrise / sunset in January in Riverdale Gardens?

On the first day of January in Riverdale Gardens, Maryland, sunrise is at 7:26 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:27 pm EST.

How long on average sun shines in January in Riverdale Gardens?

The average sunshine duration in January in Riverdale Gardens, Maryland, is 5.1h.

When is the lowest UV index in Riverdale Gardens?

The months with the lowest UV index in Riverdale Gardens, Maryland, are January and December, with an average maximum UV index of 2.

What is the UV index reading in January in Riverdale Gardens?

In January, the average daily maximum UV index in Riverdale Gardens is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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 January
Riverdale Gardens, MD

Average temperature in January - Riverdale Gardens, MD
  • Average high temperature in January: 39.9°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in January: 27.7°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in January
Riverdale Gardens, MD

Average pressure in January - Riverdale Gardens, MD
  • Average pressure in January: 30.11"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 January
Riverdale Gardens, MD

Average wind speed in January - Riverdale Gardens, MD
  • Average wind speed in January: 7.9mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in January
Riverdale Gardens, MD

Average humidity in January - Riverdale Gardens, MD
  • Average humidity in January: 72%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

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Average rainfall in January
Riverdale Gardens, MD

Average rainfall in January - Riverdale Gardens, MD
  • Average rainfall in January: 2.01"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in January
Riverdale Gardens, MD

Average rainfall days in January - Riverdale Gardens, MD
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

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Average snowfall in January
Riverdale Gardens, MD

Average snowfall in January - Riverdale Gardens, MD
  • Average snowfall in January: 2.6"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in January
Riverdale Gardens, MD

Average snowfall days in January - Riverdale Gardens, MD
  • Average snowfall days in January: 4.1 days

The month with the highest number of snowfall days is January (4.1 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 January /
Average sunshine in January
Riverdale Gardens, MD

Average daylight in January / Average sunshine in January - Riverdale Gardens, MD
  • Average daylight in January: 9h and 5min

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 30min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in January
Riverdale Gardens, MD

Average sunshine days in January - Riverdale Gardens, MD
  • Average sunshine days in January: 18.6 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in January
Riverdale Gardens, MD

Average UV index in January - Riverdale Gardens, MD
  • Average UV index in January: 2

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 and December (UV index 2).

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Average cloud cover in January
Riverdale Gardens, MD

Average cloud cover in January - Riverdale Gardens, MD
  • Average cloud cover in January: 43

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in January
Riverdale Gardens, MD

Average visibility in January - Riverdale Gardens, MD
  • Average visibility in January: 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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Riverdale Gardens, Maryland, USA

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