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
The coldest period is January, when temperatures fluctuate between an average high of 39.6°F (4.2°C) and a low of 28.4°F (-2°C).Humidity
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 72%.Rainfall
January is the month with the least rainfall. Rain falls for 9.9 days and accumulates 2.01" (51mm) of precipitation.Snowfall
Months with snowfall in Rockhill Beach are January through April, November and December. January is the month with the most snowfall. Snow falls for 4.4 days and accumulates 2.05" (52mm) of snow.Daylight
In January, the average length of the day is 9h and 47min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:53 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:25 pm EST.
Sunshine
The average sunshine in January in Rockhill Beach is 5.3h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the UV index of 2 transforms into the following advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
Is it cold during January?
What is the least humid month?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Rockhill Beach have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Rockhill Beach, MD
- Average high temperature in January: 39.6°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 (39.6°F).
- Average low temperature in January: 28.4°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in January
Rockhill Beach, MD
- Average pressure in January: 30.1"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
Rockhill Beach, MD
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in January
Rockhill Beach, MD
- Average humidity in January: 72%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall in January
Rockhill Beach, MD
- Average rainfall in January: 2.01"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in January
Rockhill Beach, MD
- Average rainfall days in January: 9.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in January
Rockhill Beach, MD
- Average snowfall in January: 2.05"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Rockhill Beach, MD
- Average snowfall days in January: 4.4 days
The month with the highest number of snowfall days is January (4.4 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
Rockhill Beach, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in January
Rockhill Beach, MD
- Average sunshine days in January: 17.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in January
Rockhill Beach, 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
Rockhill Beach, MD
- Average cloud cover in January: 43
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
Rockhill Beach, 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).
Rockhill Beach, Maryland, USA
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