January weather forecast
Derwood, MD

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Weather in January

January, the same as December, is an icy winter month in Derwood, Maryland, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 25.2°F (-3.8°C).

Temperature

In Derwood, Maryland, the month of January is known for its lowest average temperatures, reaching a high of 38.8°F (3.8°C) and a low of 25.2°F (-3.8°C).

Humidity

In Derwood, the average relative humidity in January is 74%.

Rainfall

January is the month with the least rainfall in Derwood. Rain falls for 8.7 days and accumulates 1.73" (44mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. January is the month with the most snowfall in Derwood, Maryland. Snow falls for 4.8 days and accumulates 2.76" (70mm) of snow.

Daylight

In Derwood, the average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:27 am and sunset at 4:56 pm. On the last day of January, sunrise is at 7:16 am and sunset at 5:27 pm EST.

Sunshine

The months with the least sunshine in Derwood, Maryland, are January, February and December, with an average of 5.1h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Boost your sun resistance with garments that are densely woven yet spacious. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What month is the coldest in Derwood?

The coldest period in Derwood tends to be January, when average temperatures fluctuate between a high of 38.8°F (3.8°C) and a low of 25.2°F (-3.8°C).

How cold does it get in Derwood in January?

The average high-temperature and low-temperature in Derwood during January are 38.8°F (3.8°C) and 25.2°F (-3.8°C) respectively.

What is the average humidity in January in Derwood?

In January, the average relative humidity in Derwood is 74%.

What is the driest month in Derwood?

The month with the least rainfall in Derwood is January, when the rain falls for 8.7 days and typically collects 1.73" (44mm) of precipitation.

How many days does it rain in January in Derwood?

In January, in Derwood, Maryland, the rain falls for 8.7 days. Throughout January, 1.73" (44mm) of precipitation is accumulated.

When does it snow the most in Derwood?

The month with the most snowfall is January, when snow falls for 4.8 days and typically aggregates up to 2.76" (70mm) of snow.

How much does it snow in Derwood in January?

In Derwood, Maryland, in January, during 4.8 snowfall days, 2.76" (70mm) of snow is typically accumulated.

How many hours of daylight does Derwood have in January?

In January, the average day length in Derwood, Maryland, is 9h and 47min.

What time are sunrise and sunset in January in Derwood?

In January, on the first day of the month, sunrise is at 7:27 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:27 pm EST.

What is the month with the least sunshine in Derwood?

January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine in Derwood, Maryland.

How many hours of sunshine does Derwood have in January?

In Derwood, the average sunshine duration in January is 5.1h.

When is the lowest UV index in Derwood?

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

What is the UV index intensity in January in Derwood?

In January, the average daily maximum UV index in Derwood, Maryland, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
44.2°F 6.8°C
38.8°F 3.8°C
43.2°F 6.2°C
Average low temperature
32.2°F 0.1°C
25.2°F -3.8°C
27.9°F -2.3°C
Average pressure
30.11" 765mmHg
30.11" 765mmHg
30.07" 764mmHg
Average wind speed
7.1mph 11.4km/h
7.7mph 12.4km/h
7.7mph 12.4km/h
Average max. wind speed
7.7mph 12.4km/h
8.5mph 13.7km/h
8.4mph 13.5km/h
Average wind speed gusts
11.4mph 18.3km/h
12.2mph 19.6km/h
12.4mph 20km/h
Average humidity
77%
74%
76%
Average rainfall
2.09" 53mm
1.73" 44mm
1.89" 48mm
Average rainfall days
10.5
8.7
9.2
Average snowfall
1.38" 35mm
2.76" 70mm
2.36" 60mm
Average snowfall days
2.5
4.8
5.3
Average daylight
9h 3min
9h 5min
10h 5min
Average sunshine
5h 1min
5h 1min
5h 1min
Average sunshine days
18.4
18
15.7
Average UV index
2
2
2
Average cloud cover
45%
44%
45%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Derwood, MD

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

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in January: 25.2°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in January
Derwood, MD

Average pressure in January - Derwood, 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).

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Average wind speed in January
Derwood, MD

Average wind speed in January - Derwood, MD
  • Average wind speed in January: 7.7mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in January
Derwood, MD

Average humidity in January - Derwood, MD
  • Average humidity in January: 74%

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

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Average rainfall in January
Derwood, MD

Average rainfall in January - Derwood, MD
  • Average rainfall in January: 1.73"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.73").

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Average rainfall days in January
Derwood, MD

Average rainfall days in January - Derwood, MD
  • Average rainfall days in January: 8.7 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in January
Derwood, MD

Average snowfall in January - Derwood, MD
  • Average snowfall in January: 2.76"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Derwood, MD

Average snowfall days in January - Derwood, MD
  • Average snowfall days in January: 4.8 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Derwood, 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 months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

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Average sunshine days in January
Derwood, MD

Average sunshine days in January - Derwood, MD
  • Average sunshine days in January: 18 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in January
Derwood, MD

Average UV index in January - Derwood, 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, February, November and December (UV index 2).

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Average cloud cover in January
Derwood, MD

Average cloud cover in January - Derwood, MD
  • Average cloud cover in January: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in January
Derwood, MD

Average visibility in January - Derwood, 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).

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Derwood, Maryland, USA

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