January weather forecast
Highlands of Olney, MD

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Weather in January

January, the same as December, is another cold winter month in Highlands of Olney, Maryland, with an average temperature ranging between max 39°F (3.9°C) and min 26.2°F (-3.2°C).

Temperature

January is the coldest month, exhibiting average temperatures of 39°F (3.9°C) at the peak and 26.2°F (-3.2°C) at the base.

Humidity

In January, the average relative humidity is 73%.

Rainfall

January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 2.17" (55mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. The months with the most snowfall are January and March, with an average 3.03" (77mm) of accumulated snow.

Daylight

In Highlands of Olney, the average length of the day in January is 9h and 47min.
On the first day of January in Highlands of Olney, sunrise is at 7:27 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:27 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: In January, a daily UV index of 2 turns into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

January, with its average high-temperature of 39°F (3.9°C) and an average low-temperature of 26.2°F (-3.2°C), holds the record as the coldest month.

Is January cold?

The average high-temperature and low-temperature in Highlands of Olney during January are 39°F (3.9°C) and 26.2°F (-3.2°C) respectively.

What is the average humidity in January?

In January, the average relative humidity is 73%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 9.3 days and typically collects 2.17" (55mm) of precipitation.

How many days does it rain in January?

In January, the rain falls for 9.3 days. Throughout January, 2.17" (55mm) of precipitation is accumulated.

When does it snow the most?

The months with the most snowfall are January and March, with an average 3.03" (77mm) of accumulated snow.

How many days does it snow in January?

In Highlands of Olney, Maryland, during January, snow falls for 5.1 days and regularly aggregates up to 3.03" (77mm) of snow.

How many hours of daylight does Highlands of Olney have in January?

In Highlands of Olney, the average day length in January is 9h and 47min.

What time are sunrise and sunset in January in Highlands of Olney?

In January, on the first day of the month, sunrise is at 7:27 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:27 pm EST.

How long on average sun shines in January?

In Highlands of Olney, the average sunshine duration in January is 5.1h.

When is the lowest UV index in Highlands of Olney?

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

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Highlands of Olney, MD

Average temperature in January - Highlands of Olney, 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
Highlands of Olney, MD

Average pressure in January - Highlands of Olney, 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
Highlands of Olney, MD

Average wind speed in January - Highlands of Olney, 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
Highlands of Olney, MD

Average humidity in January - Highlands of Olney, 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
Highlands of Olney, MD

Average rainfall in January - Highlands of Olney, 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
Highlands of Olney, MD

Average rainfall days in January - Highlands of Olney, 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
Highlands of Olney, MD

Average snowfall in January - Highlands of Olney, 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
Highlands of Olney, MD

Average snowfall days in January - Highlands of Olney, 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
Highlands of Olney, MD

Average daylight in January / Average sunshine in January - Highlands of Olney, 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
Highlands of Olney, MD

Average sunshine days in January - Highlands of Olney, 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
Highlands of Olney, MD

Average UV index in January - Highlands of Olney, 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
Highlands of Olney, MD

Average cloud cover in January - Highlands of Olney, 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
Highlands of Olney, MD

Average visibility in January - Highlands of Olney, 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).

Highlands of Olney, Maryland, USA

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