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, with average temperatures reaching a high of 39°F (3.9°C) and a low of 26.2°F (-3.2°C), is the coldest month.Humidity
In January, the average relative humidity is 73%.Rainfall
The month with the least rainfall in Wheaton is January, when the rain falls for 9.3 days and typically collects 2.17" (55mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. The months with the most snowfall in Wheaton are January and March, with an average 3.03" (77mm) of accumulated snow.Daylight
In Wheaton, the average length of the day in January is 9h and 48min.On the first day of January in Wheaton, sunrise is at 7:27 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 Wheaton, the average sunshine in January is 5.1h.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Wheaton. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during January leads to these instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the coldest month in Wheaton?
How cold does it get in Wheaton in January?
What is the average humidity in January in Wheaton?
What is the driest month in Wheaton?
How much does it rain in Wheaton in January?
What is the snowiest month in Wheaton?
How much does it snow in Wheaton in January?
What is the average length of the day in January in Wheaton?
When are sunrise and sunset in January in Wheaton?
How many hours of sunshine does Wheaton have in January?
When is the lowest UV index in Wheaton?
How high is the UV index in January in Wheaton?
Average temperature in January
Wheaton, MD
- Average high temperature in January: 39°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in January: 26.2°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in January
Wheaton, 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
Wheaton, 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 (5.1mph).
Average humidity in January
Wheaton, MD
- Average humidity in January: 73%
The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in January
Wheaton, MD
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in January
Wheaton, MD
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in January
Wheaton, MD
- Average snowfall in January: 3.03"
The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Wheaton, MD
- Average snowfall days in January: 5.1 days
The months with the highest number of snowfall days are January and February (5.1 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
Wheaton, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in January
Wheaton, MD
- Average sunshine days in January: 18.1 days
The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).
Average UV index in January
Wheaton, 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
Wheaton, 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 31).
Average visibility in January
Wheaton, 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).
Wheaton, Maryland, USA
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