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 is the month when Rocky Ridge sees the lowest average temperatures, with a high of 36.7°F (2.6°C) and a low of 23.4°F (-4.8°C).Humidity
The average relative humidity in January is 76%.Rainfall
In Rocky Ridge, in January, during 8.7 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 164.1 rainfall days, and 31.97" (812mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 8.3 days and typically aggregates up to 4.53" (115mm) of snow.Daylight
In Rocky Ridge, the average length of the day in January is 9h and 45min.On the first day of January, sunrise is at 7:29 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:27 pm EST.
Sunshine
In Rocky Ridge, the average sunshine in January is 4.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is January?
What is the average humidity in January?
How many days does it rain in January?
When does it snow the most?
How many days does it snow in January?
How many hours of daylight does Rocky Ridge have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Rocky Ridge, MD
- Average high temperature in January: 36.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
Rocky Ridge, 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 (29.95"Hg).
Average wind speed in January
Rocky Ridge, MD
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in January
Rocky Ridge, MD
- Average humidity in January: 76%
The month with the highest relative humidity is October (80%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in January
Rocky Ridge, MD
- Average rainfall in January: 2.24"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (2.2").
Average rainfall days in January
Rocky Ridge, MD
- Average rainfall days in January: 8.7 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in January
Rocky Ridge, MD
- Average snowfall in January: 4.53"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rocky Ridge, MD
- Average snowfall days in January: 8.3 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rocky Ridge, MD
- Average daylight in January: 9h and 4min
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 January: 4h and 4min
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 January
Rocky Ridge, MD
- Average sunshine days in January: 16.4 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in January
Rocky Ridge, 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, February, November and December (UV index 2).
Average cloud cover in January
Rocky Ridge, MD
- Average cloud cover in January: 49
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 January
Rocky Ridge, MD
- Average visibility in January: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Rocky Ridge, Maryland, USA
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