January weather forecast
Saint Johns Green, MD

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Weather in January

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

Temperature

With its high average temperature of 38.1°F (3.4°C) and a low of 26.2°F (-3.2°C), January is regarded as the coldest month.

Humidity

The average relative humidity in January in Saint Johns Green is 73%.

Rainfall

January is the month with the least rainfall in Saint Johns Green, Maryland. 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 Saint Johns Green, Maryland. The month with the most snowfall in Saint Johns Green, Maryland, is January, when snow falls for 4.9 days and typically aggregates up to 2.4" (61mm) of snow.

Daylight

The average length of the day in January in Saint Johns Green, Maryland, is 9h and 47min.
On the first day of January in Saint Johns Green, sunrise is at 7:26 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:26 pm EST.

Sunshine

In Saint Johns Green, Maryland, the average sunshine in January is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In January, the UV index of 2 transforms into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

What month is the coldest in Saint Johns Green?

January, noted for its average high-temperature of 38.1°F (3.4°C) and an average low-temperature of 26.2°F (-3.2°C), is considered the coldest month in Saint Johns Green, Maryland.

How cold is it in Saint Johns Green in January?

The high-temperature during January is 38.1°F (3.4°C) and the low-temperature is 26.2°F (-3.2°C).

What is the average humidity in January in Saint Johns Green?

The average relative humidity in January in Saint Johns Green, Maryland, is 73%.

What is the driest month in Saint Johns Green?

The month with the least rainfall is January, when the rain falls for 9.7 days and typically collects 2.05" (52mm) of precipitation.

How much does it rain in Saint Johns Green in January?

In Saint Johns Green, Maryland, during January, the rain falls for 9.7 days and regularly aggregates up to 2.05" (52mm) of precipitation.

What is the snowiest month in Saint Johns Green?

The month with the most snowfall in Saint Johns Green, Maryland, is January, when snow falls for 4.9 days and typically aggregates up to 2.4" (61mm) of snow.

How much does it snow in Saint Johns Green in January?

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

How many hours of daylight does Saint Johns Green have in January?

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

When are sunrise and sunset in January in Saint Johns Green?

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, sunrise is at 7:15 am and sunset at 5:26 pm EST.

How long on average sun shines in January in Saint Johns Green?

In Saint Johns Green, the average sunshine duration in January is 5.1h.

When is the lowest UV index in Saint Johns Green?

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

How high is the UV index in January in Saint Johns Green?

In Saint Johns Green, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
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
Saint Johns Green, MD

Average temperature in January - Saint Johns Green, 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
Saint Johns Green, MD

Average pressure in January - Saint Johns Green, 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
Saint Johns Green, MD

Average wind speed in January - Saint Johns Green, 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
Saint Johns Green, MD

Average humidity in January - Saint Johns Green, 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
Saint Johns Green, MD

Average rainfall in January - Saint Johns Green, 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
Saint Johns Green, MD

Average rainfall days in January - Saint Johns Green, 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
Saint Johns Green, MD

Average snowfall in January - Saint Johns Green, 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
Saint Johns Green, MD

Average snowfall days in January - Saint Johns Green, 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
Saint Johns Green, MD

Average daylight in January / Average sunshine in January - Saint Johns Green, 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
Saint Johns Green, MD

Average sunshine days in January - Saint Johns Green, 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
Saint Johns Green, MD

Average UV index in January - Saint Johns Green, 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
Saint Johns Green, MD

Average cloud cover in January - Saint Johns Green, 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
Saint Johns Green, MD

Average visibility in January - Saint Johns Green, 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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Saint Johns Green, Maryland, USA

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