January weather forecast
Harpers Mill, MD

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Weather in January

January, the same as December, is an icy winter month in Harpers Mill, Maryland, with an average temperature fluctuating between 38.8°F (3.8°C) and 27.7°F (-2.4°C).

Temperature

The month of January, characterized by an average high of 38.8°F (3.8°C) and a low of 27.7°F (-2.4°C), is recognized as the coldest.

Humidity

The average relative humidity in January is 73%.

Rainfall

January is the month with the least rainfall. Rain falls for 8.4 days and accumulates 1.81" (46mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. January is the month with the most snowfall. Snow falls for 3.8 days and accumulates 2.09" (53mm) of snow.

Daylight

In Harpers Mill, the average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:25 pm EST.

Sunshine

In January, the average sunshine is 5.3h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 2 in January translates into these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.

Frequently asked questions

What part of the year is the coldest?

Harpers Mill's temperature records reveal January as the coldest month, marked by average highs of 38.8°F (3.8°C) and lows of 27.7°F (-2.4°C).

How cold is it in January?

In Harpers Mill, 38.8°F (3.8°C) is the average high-temperature and 27.7°F (-2.4°C) is the average low-temperature during January.

What is the average humidity in January?

The average relative humidity in January is 73%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 8.4 days and accumulates 1.81" (46mm) of precipitation.

How much does it rain in January?

In Harpers Mill, in January, it is raining for 8.4 days, with typically 1.81" (46mm) of accumulated precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 3.8 days and accumulates 2.09" (53mm) of snow.

How many days does it snow in January?

In January, it is snowing for 3.8 days. Throughout January, 2.09" (53mm) of snow is accumulated.

What is the average length of the day in January?

In Harpers Mill, the average day length in January is 9h and 47min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of the month, in Harpers Mill, sunrise is at 7:14 am and sunset at 5:25 pm EST.

How many hours of sunshine does Harpers Mill have in January?

In Harpers Mill, the average sunshine duration in January is 5.3h.

When is the lowest UV index in Harpers Mill?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Harpers Mill, MD

Average temperature in January - Harpers Mill, MD
  • Average high temperature in January: 38.8°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in January: 27.7°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 (27.7°F).

Average pressure in January
Harpers Mill, MD

Average pressure in January - Harpers Mill, MD
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Harpers Mill, MD

Average wind speed in January - Harpers Mill, MD
  • Average wind speed in January: 9.1mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in January
Harpers Mill, MD

Average humidity in January - Harpers Mill, MD
  • Average humidity in January: 73%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are March, April and July (72%).

Average rainfall in January
Harpers Mill, MD

Average rainfall in January - Harpers Mill, MD
  • Average rainfall in January: 1.81"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in January
Harpers Mill, MD

Average rainfall days in January - Harpers Mill, MD
  • Average rainfall days in January: 8.4 days

The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and November (8.4 days).

Average snowfall in January
Harpers Mill, MD

Average snowfall in January - Harpers Mill, MD
  • Average snowfall in January: 2.09"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Harpers Mill, MD

Average snowfall days in January - Harpers Mill, MD
  • Average snowfall days in January: 3.8 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Harpers Mill, MD

Average daylight in January / Average sunshine in January - Harpers Mill, 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 6min).

Average sunshine days in January
Harpers Mill, MD

Average sunshine days in January - Harpers Mill, MD
  • Average sunshine days in January: 18.1 days

The month with the most sunshine days is November (19.9 days).
The months with the least sunshine days are May and July (10.8 days).

Average UV index in January
Harpers Mill, MD

Average UV index in January - Harpers Mill, 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
Harpers Mill, MD

Average cloud cover in January - Harpers Mill, MD
  • Average cloud cover in January: 43

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in January
Harpers Mill, MD

Average visibility in January - Harpers Mill, 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).

Harpers Mill, Maryland, USA

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