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, marked by an average high-temperature of 39.7°F (4.3°C) and a low-temperature of 27.1°F (-2.7°C), is the coldest month.Humidity
In Rosemary Hills, Maryland, the average relative humidity in January is 72%.Rainfall
January is the month with the least rainfall in Rosemary Hills. Rain falls for 8.8 days and accumulates 1.89" (48mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Rosemary Hills, Maryland. January is the month with the most snowfall. Snow falls for 4.6 days and accumulates 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 the month, sunrise is at 7:26 am and sunset at 4:56 pm. On the last day of January, in Rosemary Hills, 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
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rosemary Hills. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, a regular UV index of 2 translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What time of the year is the coldest in Rosemary Hills?
How cold is January in Rosemary Hills?
What is the average humidity in January in Rosemary Hills?
What is the driest month in Rosemary Hills?
How many days does it rain in January in Rosemary Hills?
When does it snow the most in Rosemary Hills?
How much does it snow in Rosemary Hills in January?
How many hours of daylight does Rosemary Hills have in January?
When is the sunrise / sunset in January in Rosemary Hills?
How many hours of sunshine does Rosemary Hills have in January?
What is the month with the lowest UV index in Rosemary Hills?
How high is the UV index in January in Rosemary Hills?
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 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 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).
Rosemary Hills, Maryland, USA
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