January weather forecast
Catonsville, MD

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Weather in January

January, the same as December, is an icy winter month in Catonsville, Maryland, with an average temperature fluctuating between 38.1°F (3.4°C) and 26.2°F (-3.2°C).

Temperature

Catonsville witnesses the coldest weather in January, with temperatures averaging a high of 38.1°F (3.4°C) and a low of 26.2°F (-3.2°C).

Humidity

In January, the average relative humidity is 73%.

Rainfall

January is the month with the least rainfall. Rain falls for 9.7 days and accumulates 2.05" (52mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Catonsville. January is the month with the most snowfall. Snow falls for 4.9 days and accumulates 2.4" (61mm) of snow.

Daylight

In January, the average length of the day is 9h and 47min.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:54 pm. On the last day of January, in Catonsville, sunrise is at 7:14 am and sunset at 5:25 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

UV index

The months with the lowest UV index in Catonsville are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

What is the coldest time of year in Catonsville?

During the coldest month in Catonsville, January, temperatures average a high of 38.1°F (3.4°C) and a low of 26.2°F (-3.2°C).

How cold is January in Catonsville?

In January, the average high-temperature and low-temperature in Catonsville, Maryland, are 38.1°F (3.4°C) and 26.2°F (-3.2°C) respectively.

What is the average humidity in January in Catonsville?

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

What is the driest month in Catonsville?

January is the month with the least rainfall in Catonsville, Maryland. Rain falls for 9.7 days and accumulates 2.05" (52mm) of precipitation.

How much does it rain in Catonsville in January?

In January, the rain falls for 9.7 days. Throughout January, 2.05" (52mm) of precipitation is accumulated.

When does it snow the most in Catonsville?

January is the month with the most snowfall in Catonsville. Snow falls for 4.9 days and accumulates 2.4" (61mm) of snow.

How many days does it snow in January in Catonsville?

In Catonsville, in January, during 4.9 snowfall days, 2.4" (61mm) of snow is typically accumulated.

How many hours of daylight does Catonsville have in January?

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

When is the sunrise / sunset in January in Catonsville?

In January, on the first day of the month, sunrise is at 7:26 am and sunset at 4:54 pm. On the last day of the month, in Catonsville, sunrise is at 7:14 am and sunset at 5:25 pm EST.

How many hours of sunshine does Catonsville have in January?

The average sunshine duration in January in Catonsville is 5.1h.

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

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

What is the UV index reading in January in Catonsville?

In January, the average daily maximum UV index in Catonsville, Maryland, is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
44.1°F 6.7°C
38.1°F 3.4°C
42.3°F 5.7°C
Average low temperature
32.9°F 0.5°C
26.2°F -3.2°C
28.6°F -1.9°C
Average pressure
30.11" 765mmHg
30.1" 765mmHg
30.07" 764mmHg
Average wind speed
8mph 12.9km/h
8.6mph 13.8km/h
8.6mph 13.8km/h
Average max. wind speed
8.6mph 13.8km/h
9.3mph 15km/h
9.3mph 15km/h
Average wind speed gusts
12.9mph 20.8km/h
13.8mph 22.2km/h
14mph 22.5km/h
Average humidity
76%
73%
75%
Average rainfall
2.6" 66mm
2.05" 52mm
2.24" 57mm
Average rainfall days
11.8
9.7
10.3
Average snowfall
1.22" 31mm
2.4" 61mm
1.57" 40mm
Average snowfall days
2.9
4.9
4.7
Average daylight
9h 3min
9h 5min
10h 4min
Average sunshine
5h 1min
5h 1min
5h 0min
Average sunshine days
16.2
16.9
14.3
Average UV index
2
2
2
Average cloud cover
44%
44%
45%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Catonsville, MD

Average temperature in January - Catonsville, MD
  • Average high temperature in January: 38.1°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.1°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).

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Average pressure in January
Catonsville, MD

Average pressure in January - Catonsville, 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).

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Average wind speed in January
Catonsville, MD

Average wind speed in January - Catonsville, MD
  • Average wind speed in January: 8.6mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in January
Catonsville, MD

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

The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in January
Catonsville, MD

Average rainfall in January - Catonsville, MD
  • Average rainfall in January: 2.05"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in January
Catonsville, MD

Average rainfall days in January - Catonsville, MD
  • Average rainfall days in January: 9.7 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in January
Catonsville, MD

Average snowfall in January - Catonsville, MD
  • Average snowfall in January: 2.4"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Catonsville, MD

Average snowfall days in January - Catonsville, MD
  • Average snowfall days in January: 4.9 days

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Catonsville, 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).

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Average sunshine days in January
Catonsville, MD

Average sunshine days in January - Catonsville, MD
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

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Average UV index in January
Catonsville, MD

Average UV index in January - Catonsville, 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
Catonsville, MD

Average cloud cover in January - Catonsville, 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 29).

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Average visibility in January
Catonsville, MD

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

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