January weather forecast
Hillsboro, MD

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Weather in January

January, like December, in Hillsboro, Maryland, is an icy winter month, with an average temperature ranging between min 29.1°F (-1.6°C) and max 40.5°F (4.7°C).

Temperature

With average temperatures fluctuating between a high of 40.5°F (4.7°C) and a low of 29.1°F (-1.6°C), January stands out as the coldest month.

Humidity

The least humid month in Hillsboro is January, with an average relative humidity of 73%.

Rainfall

January is the month with the least rainfall. Rain falls for 9.1 days and accumulates 1.69" (43mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. The month with the most snowfall in Hillsboro is January, when snow falls for 3.3 days and typically aggregates up to 1.5" (38mm) of snow.

Daylight

In Hillsboro, Maryland, the average length of the day in January is 9h and 49min.
On the first day of the month, sunrise is at 7:22 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

The average sunshine in January is 5.4h.

UV index

The months with the lowest UV index in Hillsboro are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 2 during January leads to these advisories:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What is the coldest month in Hillsboro?

The lowest temperatures are recorded in January, with averages reaching a high of 40.5°F (4.7°C) and a low of 29.1°F (-1.6°C).

Is January cold in Hillsboro?

In Hillsboro, in January, the average high-temperature is 40.5°F (4.7°C), and the average low-temperature is 29.1°F (-1.6°C).

What is the least humid month in Hillsboro?

The least humid month in Hillsboro, Maryland, is January, with an average relative humidity of 73%.

What is the average humidity in January in Hillsboro?

In January, the average relative humidity in Hillsboro, Maryland, is 73%.

What is the driest month in Hillsboro?

The month with the least rainfall is January, when the rain falls for 9.1 days and typically collects 1.69" (43mm) of precipitation.

How much does it rain in Hillsboro in January?

In January, in Hillsboro, Maryland, the rain falls for 9.1 days. Throughout January, 1.69" (43mm) of precipitation is accumulated.

When does it snow the most in Hillsboro?

The month with the most snowfall in Hillsboro is January, when snow falls for 3.3 days and typically aggregates up to 1.5" (38mm) of snow.

How many days does it snow in January in Hillsboro?

In January, in Hillsboro, Maryland, it is snowing for 3.3 days. Throughout January, 1.5" (38mm) of snow is accumulated.

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

In Hillsboro, Maryland, the average day length in January is 9h and 49min.

When are sunrise and sunset in January in Hillsboro?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:52 pm. On the last day of the month, in Hillsboro, Maryland, sunrise is at 7:10 am and sunset at 5:23 pm EST.

How long on average sun shines in January in Hillsboro?

In Hillsboro, the average sunshine duration in January is 5.4h.

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

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

What is the UV index intensity in January in Hillsboro?

In January, the average daily maximum UV index in Hillsboro, Maryland, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
46.6°F 8.1°C
40.5°F 4.7°C
44.2°F 6.8°C
Average low temperature
35.8°F 2.1°C
29.1°F -1.6°C
31.8°F -0.1°C
Average pressure
30.1" 765mmHg
30.1" 765mmHg
30.07" 764mmHg
Average wind speed
8.8mph 14.2km/h
9.6mph 15.4km/h
9.8mph 15.8km/h
Average max. wind speed
9.5mph 15.3km/h
10.4mph 16.7km/h
10.4mph 16.7km/h
Average wind speed gusts
14.5mph 23.3km/h
15.6mph 25.1km/h
15.9mph 25.6km/h
Average humidity
77%
73%
74%
Average rainfall
2.2" 56mm
1.69" 43mm
1.97" 50mm
Average rainfall days
9.9
9.1
9.9
Average snowfall
0.55" 14mm
1.5" 38mm
0.91" 23mm
Average snowfall days
1.3
3.3
2.7
Average daylight
9h 3min
9h 5min
10h 5min
Average sunshine
5h 2min
5h 2min
5h 1min
Average sunshine days
18.4
19.1
15.3
Average UV index
2
2
3
Average cloud cover
44%
43%
44%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Hillsboro, MD

Average temperature in January - Hillsboro, MD
  • Average high temperature in January: 40.5°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in January: 29.1°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 (29.1°F).

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Average pressure in January
Hillsboro, MD

Average pressure in January - Hillsboro, 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
Hillsboro, MD

Average wind speed in January - Hillsboro, MD
  • Average wind speed in January: 9.6mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in January
Hillsboro, MD

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

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

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Average rainfall in January
Hillsboro, MD

Average rainfall in January - Hillsboro, MD
  • Average rainfall in January: 1.69"

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.69").

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Average rainfall days in January
Hillsboro, MD

Average rainfall days in January - Hillsboro, MD
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (7.9 days).

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Average snowfall in January
Hillsboro, MD

Average snowfall in January - Hillsboro, MD
  • Average snowfall in January: 1.5"

The month with the highest snowfall is January (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Hillsboro, MD

Average snowfall days in January - Hillsboro, MD
  • Average snowfall days in January: 3.3 days

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Hillsboro, 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 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in January
Hillsboro, MD

Average sunshine days in January - Hillsboro, MD
  • Average sunshine days in January: 19.1 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in January
Hillsboro, MD

Average UV index in January - Hillsboro, 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
Hillsboro, MD

Average cloud cover in January - Hillsboro, 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).

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Average visibility in January
Hillsboro, MD

Average visibility in January - Hillsboro, 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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Hillsboro, Maryland, USA

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