January weather forecastPreston, MD
January
Weather in January
January, the same as December, is a wintry winter month in Preston, Maryland, with an average temperature varying between 41.2°F (5.1°C) and 29.3°F (-1.5°C).Temperature
Preston reaches its lowest average temperatures in January, measuring 41.2°F (5.1°C) at the peak and 29.3°F (-1.5°C) at the lowest.Humidity
January, March and November, with an average relative humidity of 74%, are the least humid months.Rainfall
The months with the least rainfall are January and September Rain falls for 7.9 days and accumulates 0.94" (24mm) of rain.Snowfall
Months with snowfall are January through March, May, November and December. The month with the most snowfall is January, when snow falls for 3 days and typically aggregates up to 1.02" (26mm) of snow.Daylight
In Preston, Maryland, the average length of the day in January is 9h and 49min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:52 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:23 pm EST.
Sunshine
In Preston, the average sunshine in January is 5.4h.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Preston. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during January translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Preston, MD
- Average high temperature in January: 41.2°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in January: 29.3°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in January
Preston, MD
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Preston, MD
- Average wind speed in January: 9.4mph
The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Preston, MD
- Average humidity in January: 74%
The months with the highest relative humidity are May, August and September (79%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in January
Preston, MD
- Average rainfall in January: 0.94"
The wettest months (with the highest rainfall) are July and August (2.01").
The driest months (with the least rainfall) are January and September (0.94").
Average rainfall days in January
Preston, MD
- Average rainfall days in January: 7.9 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is November (7.2 days).
Average snowfall in January
Preston, MD
- Average snowfall in January: 1.02"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in January
Preston, MD
- Average snowfall days in January: 3 days
The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Preston, MD
- Average daylight in January: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 5h and 24min
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 12min).
Average sunshine days in January
Preston, MD
- Average sunshine days in January: 20.1 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in January
Preston, 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
Preston, MD
- Average cloud cover in January: 42
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
Preston, 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).
