January weather forecast
Chester, MD

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Weather in January

January, like December, in Chester, Maryland, is a wintry winter month, with temperature in the range of an average high of 40.1°F and an average low of 29.5°F.

Temperature

Temperature readings reach their annual highs in January, averaging 40.1°F and a minimum average of 29.5°F.

Humidity

January and November, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Chester, in January, during 9.3 rainfall days, 2.05" of precipitation is typically accumulated. In Chester, during the entire year, the rain falls for 159 days and collects up to 32.36" of precipitation.

Snowfall

Months with snowfall in Chester, Maryland, are January through April, November and December. The month with the most snowfall is January, when snow falls for 4.2 days and typically aggregates up to 1.42" of snow.

Ocean temperature

In Chester, Maryland, in January, the average water temperature is 46.8°F.
Note: It is advised against swimming in 46.8°F when it drops below 50°F. Such temperatures can cause extreme cold shock, leading to hyperventilation.

Daylight

The average length of the day in January in Chester is 9h and 48min.
On the first day of January, sunrise is at 7:23 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:24 pm EST.

Sunshine

In Chester, the average sunshine in January 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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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FAQ

What are the coldest months in Chester?

With average temperatures fluctuating between a high of 40.1°F and a low of 29.5°F, January stands out as the coldest month in Chester.

Is January cold in Chester?

Chester in January has an average high-temperature of 40.1°F and an average low-temperature of 29.5°F.

What are the least humid months in Chester?

January and November, with an average relative humidity of 73%, are the least humid months in Chester, Maryland.

What is the average humidity in January in Chester?

The average relative humidity in January in Chester is 73%.

How many days does it rain in January in Chester?

In Chester, in January, it is raining for 9.3 days, with typically 2.05" of accumulated precipitation.

When does it snow the most in Chester?

The month with the most snowfall is January, when snow falls for 4.2 days and typically aggregates up to 1.42" of snow.

How much does it snow in Chester in January?

In Chester, Maryland, during January, snow falls for 4.2 days and regularly aggregates up to 1.42" of snow.

How cold is the water in January in Chester?

In Chester, the average seawater temperature in January is 46.8°F. At temperatures below 50°F, swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F is not comfortable.

How many hours of daylight does Chester have in January?

The average day length in January is 9h and 48min.

When is the sunrise / sunset in January in Chester?

In January, on the first day of the month, sunrise is at 7:23 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:24 pm EST.

How many hours of sunshine does Chester have in January?

In Chester, Maryland, the average sunshine duration in January is 5.3h.

What is the month with the lowest UV index in Chester?

The months with the lowest UV index in Chester, Maryland, are January and December, with an average maximum UV index of 2.

What is the UV index intensity in January in Chester?

In Chester, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
46.2°F
40.1°F
43.3°F
Average low temperature
36.3°F
29.5°F
31.5°F
Average pressure
30.11"Hg
30.1"Hg
30.07"Hg
Average wind speed
9.2mph
10mph
10.1mph
Average max. wind speed
10.1mph
10.9mph
10.9mph
Average wind speed gusts
15.4mph
16.5mph
16.8mph
Average humidity
76%
73%
74%
Average rainfall
2.91"
2.05"
2.4"
Average rainfall days
11.4
9.3
10.9
Average snowfall
0.31"
1.42"
0.98"
Average snowfall days
1.7
4.2
3
Average sea temperature
51.7°F
46.7°F
45.1°F
Average daylight
9h 3min
9h 5min
10h 5min
Average sunshine
5h 1min
5h 2min
5h 0min
Average sunshine days
17.4
18.2
14.6
Average UV index
2
2
3
Average cloud cover
45%
43%
45%
Average visibility
6mi
6mi
6mi

Average temperature in January
Chester, MD

Average temperature in January - Chester, MD
  • Average high temperature in January: 40.1°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in January: 29.5°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

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Average pressure in January
Chester, MD

Average pressure in January - Chester, 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).

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Average wind speed in January
Chester, MD

Average wind speed in January - Chester, MD
  • Average wind speed in January: 10mph

The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in January
Chester, MD

Average humidity in January - Chester, MD
  • Average humidity in January: 73%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).

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Average rainfall in January
Chester, MD

Average rainfall in January - Chester, MD
  • Average rainfall in January: 2.05"

The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in January
Chester, MD

Average rainfall days in January - Chester, MD
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in January
Chester, MD

Average snowfall in January - Chester, MD
  • Average snowfall in January: 1.42"

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Chester, MD

Average snowfall days in January - Chester, MD
  • Average snowfall days in January: 4.2 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in January
Chester, MD

Average sea temperature in January - Chester, MD
  • Average sea temperature in January: 46.7°F

The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).

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Average daylight in January /
Average sunshine in January
Chester, MD

Average daylight in January / Average sunshine in January - Chester, 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 February (Average sunshine: 5h and 0min).

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Average sunshine days in January
Chester, MD

Average sunshine days in January - Chester, MD
  • Average sunshine days in January: 18.2 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in January
Chester, MD

Average UV index in January - Chester, 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).

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Average cloud cover in January
Chester, MD

Average cloud cover in January - Chester, MD
  • Average cloud cover in January: 43

The months with the most cloud cover are February, March and December (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in January
Chester, MD

Average visibility in January - Chester, 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).

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Chester, Maryland, USA

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