Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, with its high-temperature average of 39.9°F (4.4°C) and a low-temperature average of 27.7°F (-2.4°C), is the coldest month.Humidity
The average relative humidity in January is 72%.Rainfall
January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 2.01" (51mm) of precipitation.Snowfall
Months with snowfall are January through April and December. January is the month with the most snowfall in Riverdale Park, Maryland. Snow falls for 4.1 days and accumulates 2.6" (66mm) of snow.Daylight
In January, the average length of the day in Riverdale Park, Maryland, is 9h and 48min.On the first day of January in Riverdale Park, sunrise is at 7:26 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:27 pm EST.
Sunshine
The average sunshine in January in Riverdale Park, Maryland, is 5.1h.UV index
The months with the lowest UV index in Riverdale Park are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What time of the year is the coldest in Riverdale Park?
Is it cold in Riverdale Park during January?
What is the average humidity in January in Riverdale Park?
What is the driest month in Riverdale Park?
How much does it rain in Riverdale Park in January?
What is the snowiest month in Riverdale Park?
How much does it snow in Riverdale Park in January?
What is the average length of the day in January in Riverdale Park?
When are sunrise and sunset in January in Riverdale Park?
How long on average sun shines in January in Riverdale Park?
When is the lowest UV index in Riverdale Park?
What is the UV index intensity in January in Riverdale Park?
Average temperature in January
Riverdale Park, 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).
Average pressure in January
Riverdale Park, 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).
Average wind speed in January
Riverdale Park, 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).
Average humidity in January
Riverdale Park, 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%).
Average rainfall in January
Riverdale Park, 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").
Average rainfall days in January
Riverdale Park, 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).
Average snowfall in January
Riverdale Park, 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").
Average snowfall days in January
Riverdale Park, 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).
Average daylight in January /
Average sunshine in January
Riverdale Park, 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).
Average sunshine days in January
Riverdale Park, 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).
Average UV index in January
Riverdale Park, 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).
Average cloud cover in January
Riverdale Park, 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).
Average visibility in January
Riverdale Park, 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).
Riverdale Park, Maryland, USA
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