January weather forecast
Chester, MD

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Weather in January

January, like December, in Chester, Maryland, is a wintry winter month, with an average temperature varying between 29.5°F (-1.4°C) and 40.1°F (4.5°C).

Temperature

January, having an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 29.5°F (-1.4°C), is the coldest month.

Humidity

The months with the lowest humidity in Chester are January and November, with an average relative humidity of 73%.

Rainfall

In January, the rain falls for 9.3 days. Throughout January, 2.05" (52mm) of precipitation is accumulated. Throughout the year, in Chester, Maryland, there are 159 rainfall days, and 32.36" (822mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 4.2 days and accumulates 1.42" (36mm) of snow.

Ocean temperature

In Chester, Maryland, in January, the average water temperature is 46.8°F (8.2°C).
Note: It is advised against swimming in 46.8°F (8.2°C) when it drops below 50°F (10°C). 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 in Chester, 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

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What is the coldest time of year in Chester?

With average high temperatures of 40.1°F (4.5°C) and lows of 29.5°F (-1.4°C), January is the coldest month in Chester, Maryland.

Is it cold in Chester during January?

The high-temperature, in January, in Chester, is 40.1°F (4.5°C), while the low-temperature averages to 29.5°F (-1.4°C).

What is the least humid month in Chester?

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

What is the average humidity in January in Chester?

The average relative humidity in January is 73%.

How much does it rain in Chester in January?

In Chester, during January, the rain falls for 9.3 days and regularly aggregates up to 2.05" (52mm) of precipitation.

What is the snowiest month in Chester?

The month with the most snowfall in Chester is January, when snow falls for 4.2 days and typically aggregates up to 1.42" (36mm) of snow.

How much does it snow in Chester in January?

In Chester, Maryland, in January, snow falls for 4.2 days, with typically accumulated 1.42" (36mm) of snow.

What is the water temperature in January in Chester?

In Chester, Maryland, the average seawater temperature in January is 46.8°F (8.2°C). At temperatures below 50°F (10°C), 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 (13°C) is not comfortable.

What is the average length of the day in January in Chester?

The average day length in January in Chester 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, in Chester, Maryland, sunrise is at 7:12 am and sunset at 5:24 pm EST.

How long on average sun shines in January in Chester?

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

What are the months with the lowest UV index in Chester?

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

How high is the UV index in January in Chester?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
46.2°F 7.9°C
40.1°F 4.5°C
43.3°F 6.3°C
Average low temperature
36.3°F 2.4°C
29.5°F -1.4°C
31.5°F -0.3°C
Average pressure
30.11" 765mmHg
30.1" 765mmHg
30.07" 764mmHg
Average wind speed
9.2mph 14.8km/h
10mph 16.1km/h
10.1mph 16.3km/h
Average max. wind speed
10.1mph 16.3km/h
10.9mph 17.5km/h
10.9mph 17.5km/h
Average wind speed gusts
15.4mph 24.8km/h
16.5mph 26.6km/h
16.8mph 27km/h
Average humidity
76%
73%
74%
Average rainfall
2.91" 74mm
2.05" 52mm
2.4" 61mm
Average rainfall days
11.4
9.3
10.9
Average snowfall
0.31" 8mm
1.42" 36mm
0.98" 25mm
Average snowfall days
1.7
4.2
3
Average sea temperature
51.7°F 10.9°C
46.7°F 8.2°C
45.1°F 7.3°C
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 9.7km
6mi 9.7km
6mi 9.7km

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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