January weather forecast
Greer, SC

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Weather in January

January records the lowest temperatures of the entire year. Notably, this is the coldest month, with the temperature declining from December 52.5°F (11.4°C) to a 49.5°F (9.7°C) day high, and an icy 33.3°F (0.7°C) night low in Greer, South Carolina. Winds from the northwest bring colder fronts, causing temperatures to plummet, ensuring that homes in the region are not without their heaters. Despite the cold weather, January can also offer sunny respite, with plenty of bright rays to bask in during winter days. There's also a chance of witnessing January's minor flurry activity, marking the commencement of the snowfall season in this region.

Temperature

In Greer, South Carolina, the lowest temperatures are generally noted in January, averaging a high of 49.5°F (9.7°C) and a low of 33.3°F (0.7°C).

Humidity

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

Rainfall

In January, the rain falls for 10.4 days. Throughout January, 2.72" (69mm) of precipitation is accumulated. In Greer, during the entire year, the rain falls for 150.2 days and collects up to 30.55" (776mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Greer, during January, snow falls for 1.2 days and regularly aggregates up to 0.94" (24mm) of snow. In Greer, during the entire year, snow falls for 3.5 days and aggregates up to 5.16" (131mm) of snow.

Daylight

In Greer, the average length of the day in January is 10h and 7min.
On the first day of January, sunrise is at 7:36 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:56 pm EST.

Sunshine

The average sunshine in January is 5.7h.

UV index

The months with the lowest UV index in Greer are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 2 in January transforms into the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What is the coldest month in Greer?

Greer notes the coldest temperatures in January, with a average high of 49.5°F (9.7°C) and a low of 33.3°F (0.7°C).

What is the average January temperature in Greer?

In Greer, 49.5°F (9.7°C) is the average high-temperature and 33.3°F (0.7°C) is the average low-temperature during January.

What is the average humidity in January in Greer?

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

How much does it rain in Greer in January?

In Greer, South Carolina, during January, the rain falls for 10.4 days and regularly aggregates up to 2.72" (69mm) of precipitation.

How much does it snow in Greer in January?

In Greer, South Carolina, during January, snow falls for 1.2 days and regularly aggregates up to 0.94" (24mm) of snow.

How many hours of daylight does Greer have in January?

The average day length in January is 10h and 7min.

When are sunrise and sunset in January in Greer?

On the first day of January in Greer, sunrise is at 7:36 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:56 pm EST.

How long on average sun shines in January in Greer?

In Greer, South Carolina, the average sunshine duration in January is 5.7h.

When is the lowest UV index in Greer?

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

What is the UV index reading in January in Greer?

In January, the average daily maximum UV index in Greer is 2. A UV Index 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
52.5°F 11.4°C
49.5°F 9.7°C
54.1°F 12.3°C
Average low temperature
38.3°F 3.5°C
33.3°F 0.7°C
36.9°F 2.7°C
Average pressure
30.14" 766mmHg
30.14" 766mmHg
30.11" 765mmHg
Average wind speed
6mph 9.7km/h
6.4mph 10.3km/h
6.7mph 10.8km/h
Average max. wind speed
6.6mph 10.6km/h
7mph 11.3km/h
7.3mph 11.7km/h
Average wind speed gusts
9.9mph 15.9km/h
10.4mph 16.7km/h
10.7mph 17.2km/h
Average humidity
76%
72%
74%
Average rainfall
3.54" 90mm
2.72" 69mm
2.52" 64mm
Average rainfall days
11.2
10.4
10.6
Average snowfall
2.8" 71mm
0.94" 24mm
0.98" 25mm
Average snowfall days
0.5
1.2
1.3
Average daylight
9h 5min
10h 1min
10h 5min
Average sunshine
5h 3min
5h 4min
6h 5min
Average sunshine days
18.5
19.2
15.8
Average UV index
2
2
3
Average cloud cover
41%
37%
41%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Greer, SC

Average temperature in January - Greer, SC
  • Average high temperature in January: 49.5°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (49.5°F).

  • Average low temperature in January: 33.3°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 (33.3°F).

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Average pressure in January
Greer, SC

Average pressure in January - Greer, SC
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in January
Greer, SC

Average wind speed in January - Greer, SC
  • Average wind speed in January: 6.4mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in January
Greer, SC

Average humidity in January - Greer, SC
  • Average humidity in January: 72%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (68%).

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Average rainfall in January
Greer, SC

Average rainfall in January - Greer, SC
  • Average rainfall in January: 2.72"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.38").

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Average rainfall days in January
Greer, SC

Average rainfall days in January - Greer, SC
  • Average rainfall days in January: 10.4 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in January
Greer, SC

Average snowfall in January - Greer, SC
  • Average snowfall in January: 0.94"

The month with the highest snowfall is December (2.8").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Greer, SC

Average snowfall days in January - Greer, SC
  • Average snowfall days in January: 1.2 days

The month with the highest number of snowfall days is February (1.3 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
Greer, SC

Average daylight in January / Average sunshine in January - Greer, SC
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in January: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in January
Greer, SC

Average sunshine days in January - Greer, SC
  • Average sunshine days in January: 19.2 days

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in January
Greer, SC

Average UV index in January - Greer, SC
  • 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 and December (UV index 2).

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Average cloud cover in January
Greer, SC

Average cloud cover in January - Greer, SC
  • Average cloud cover in January: 37

The months with the most cloud cover are February, March and December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in January
Greer, SC

Average visibility in January - Greer, SC
  • 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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Greer, South Carolina, USA

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