January weather forecastRosemary Hills, MD
January
Weather in January
January, like December, in Rosemary Hills, Maryland, is another cold winter month, with an average temperature varying between 39.7°F (4.3°C) and 27.1°F (-2.7°C).Temperature
Rosemary Hills's temperature records reveal January as the coldest month, marked by average highs of 39.7°F (4.3°C) and lows of 27.1°F (-2.7°C).Humidity
In Rosemary Hills, Maryland, the average relative humidity in January is 72%.Rainfall
The month with the least rainfall is January, when the rain falls for 8.8 days and typically collects 1.89" (48mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. The month with the most snowfall in Rosemary Hills is January, when snow falls for 4.6 days and typically aggregates up to 2.87" (73mm) of snow.Daylight
The average length of the day in January in Rosemary Hills is 9h and 48min.On the first day of January, sunrise is at 7:26 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:27 pm EST.
Sunshine
In Rosemary Hills, the average sunshine in January is 5h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Rosemary Hills, MD
- Average high temperature in January: 39.7°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 (39.7°F).
- Average low temperature in January: 27.1°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in January
Rosemary Hills, 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
Rosemary Hills, MD
- Average wind speed in January: 7.8mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Rosemary Hills, MD
- Average humidity in January: 72%
The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in January
Rosemary Hills, MD
- Average rainfall in January: 1.89"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in January
Rosemary Hills, MD
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in January
Rosemary Hills, MD
- Average snowfall in January: 2.87"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Rosemary Hills, MD
- Average snowfall days in January: 4.6 days
The month with the highest number of snowfall days is January (4.6 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
Rosemary Hills, MD
- Average daylight in January: 9h and 48min
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 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Rosemary Hills, MD
- Average sunshine days in January: 18.1 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).
Average UV index in January
Rosemary Hills, 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, November and December (UV index 2).
Average cloud cover in January
Rosemary Hills, MD
- Average cloud cover in January: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Rosemary Hills, MD
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
