January weather forecast
Green Valley, MD

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Weather in January

January, the same as December, is an icy winter month in Green Valley, Maryland, with an average temperature ranging between min 27.5°F (-2.5°C) and max 40.6°F (4.8°C).

Temperature

Green Valley records the coldest temperatures in January, averaging a high of 40.6°F (4.8°C) and a low of 27.5°F (-2.5°C).

Humidity

In Green Valley, the average relative humidity in January is 72%.

Rainfall

January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 1.57" (40mm) of precipitation.

Snowfall

January through March and December are months with snowfall. The month with the most snowfall in Green Valley, Maryland, is January, when snow falls for 3.8 days and typically aggregates up to 2.17" (55mm) of snow.

Daylight

In Green Valley, the average length of the day in January is 9h and 46min.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:56 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:27 pm EST.

Sunshine

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

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

What is the coldest month in Green Valley?

Green Valley notes the coldest temperatures in January, with a average high of 40.6°F (4.8°C) and a low of 27.5°F (-2.5°C).

How cold is it in Green Valley in January?

The high-temperature, in January, in Green Valley, is 40.6°F (4.8°C), while the low-temperature averages to 27.5°F (-2.5°C).

What is the average humidity in January in Green Valley?

The average relative humidity in January is 72%.

What is the driest month in Green Valley?

January is the month with the least rainfall in Green Valley. Rain falls for 9.3 days and accumulates 1.57" (40mm) of precipitation.

How much does it rain in Green Valley in January?

In Green Valley, in January, it is raining for 9.3 days, with typically 1.57" (40mm) of accumulated precipitation.

What is the snowiest month in Green Valley?

The month with the most snowfall is January, when snow falls for 3.8 days and typically aggregates up to 2.17" (55mm) of snow.

How many days does it snow in January in Green Valley?

In January, in Green Valley, it is snowing for 3.8 days. Throughout January, 2.17" (55mm) of snow is accumulated.

What is the average length of the day in January in Green Valley?

In January, the average day length in Green Valley, Maryland, is 9h and 46min.

What time are sunrise and sunset in January in Green Valley?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 4:56 pm. On the last day of the month, in Green Valley, sunrise is at 7:17 am and sunset at 5:27 pm EST.

What is the month with the least sunshine in Green Valley?

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

How many hours of sunshine does Green Valley have in January?

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

What are the months with the lowest UV index in Green Valley?

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

What is the UV index reading in January in Green Valley?

In Green Valley, Maryland, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
46°F 7.8°C
40.6°F 4.8°C
44.8°F 7.1°C
Average low temperature
34.2°F 1.2°C
27.5°F -2.5°C
30.2°F -1°C
Average pressure
30.11" 765mmHg
30.11" 765mmHg
30.07" 764mmHg
Average wind speed
7mph 11.3km/h
7.6mph 12.2km/h
7.8mph 12.6km/h
Average max. wind speed
7.6mph 12.2km/h
8.3mph 13.4km/h
8.3mph 13.4km/h
Average wind speed gusts
10.7mph 17.2km/h
11.5mph 18.5km/h
11.9mph 19.2km/h
Average humidity
75%
72%
73%
Average rainfall
1.93" 49mm
1.57" 40mm
1.77" 45mm
Average rainfall days
10
9.3
9.3
Average snowfall
0.79" 20mm
2.17" 55mm
1.81" 46mm
Average snowfall days
1.7
3.8
3.8
Average daylight
9h 3min
9h 5min
10h 4min
Average sunshine
5h 1min
5h 1min
5h 1min
Average sunshine days
19
18.2
15.9
Average UV index
2
2
3
Average cloud cover
45%
43%
44%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Green Valley, MD

Average temperature in January - Green Valley, MD
  • Average high temperature in January: 40.6°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in January: 27.5°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in January
Green Valley, MD

Average pressure in January - Green Valley, 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
Green Valley, MD

Average wind speed in January - Green Valley, MD
  • Average wind speed in January: 7.6mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in January
Green Valley, MD

Average humidity in January - Green Valley, MD
  • Average humidity in January: 72%

The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April and July (71%).

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Average rainfall in January
Green Valley, MD

Average rainfall in January - Green Valley, MD
  • Average rainfall in January: 1.57"

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.57").

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Average rainfall days in January
Green Valley, MD

Average rainfall days in January - Green Valley, MD
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in January
Green Valley, MD

Average snowfall in January - Green Valley, MD
  • Average snowfall in January: 2.17"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
Green Valley, MD

Average snowfall days in January - Green Valley, MD
  • Average snowfall days in January: 3.8 days

The months with the highest number of snowfall days are January and February (3.8 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
Green Valley, MD

Average daylight in January / Average sunshine in January - Green Valley, 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 42min).
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
Green Valley, MD

Average sunshine days in January - Green Valley, MD
  • Average sunshine days in January: 18.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.8 days).

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Average UV index in January
Green Valley, MD

Average UV index in January - Green Valley, MD
  • Average UV index in January: 2

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in January
Green Valley, MD

Average cloud cover in January - Green Valley, MD
  • Average cloud cover in January: 43

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
Green Valley, MD

Average visibility in January - Green Valley, 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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Green Valley, Maryland, USA

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