January weather forecast
South Dayton, NY

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Weather in January

January, like December, is another subzero cold winter month in South Dayton, New York, with temperature in the range of an average high of 28.2°F (-2.1°C) and an average low of 18°F (-7.8°C).

Temperature

January is South Dayton's coldest month, registering average high temperatures of 28.2°F (-2.1°C) and lows of 18°F (-7.8°C).

Humidity

January and February, with an average relative humidity of 88%, are the most humid months.

Rainfall

January is the month with the least rainfall in South Dayton, New York. Rain falls for 5.5 days and accumulates 1.81" (46mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In South Dayton, during January, snow falls for 11.5 days and regularly aggregates up to 4.69" (119mm) of snow. Throughout the year, there are 59.1 snowfall days, and 27.6" (701mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 30min.
On the first day of January, sunrise is at 7:45 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:28 pm EST.

Sunshine

The month with the least sunshine in South Dayton is January, with an average of 2.4h of sunshine.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in South Dayton. 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 1 in January interprets into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What time of the year is the coldest in South Dayton?

In South Dayton, the average lowest temperatures are observed in January, with a high of 28.2°F (-2.1°C) and a low of 18°F (-7.8°C).

How cold is it in South Dayton in January?

South Dayton in January has an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 18°F (-7.8°C).

What is the most humid month in South Dayton?

The months with the highest humidity are January and February, with an average relative humidity of 88%.

What is the average humidity in January in South Dayton?

In South Dayton, the average relative humidity in January is 88%.

What is the driest month in South Dayton?

The month with the least rainfall is January, when the rain falls for 5.5 days and typically collects 1.81" (46mm) of precipitation.

How many days does it rain in January in South Dayton?

In South Dayton, New York, during January, the rain falls for 5.5 days and regularly aggregates up to 1.81" (46mm) of precipitation.

How much does it snow in South Dayton in January?

In South Dayton, New York, during January, snow falls for 11.5 days and regularly aggregates up to 4.69" (119mm) of snow.

How many hours of daylight does South Dayton have in January?

In January, the average day length in South Dayton, New York, is 9h and 30min.

What time are sunrise and sunset in January in South Dayton?

On the first day of January in South Dayton, sunrise is at 7:45 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:28 pm EST.

What is the month with the least sunshine in South Dayton?

The month with the least sunshine in South Dayton is January, with an average of 2.4h of sunshine.

How many hours of sunshine does South Dayton have in January?

In January, the average sunshine duration in South Dayton, New York, is 2.4h.

What are the months with the lowest UV index in South Dayton?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in South Dayton.

What is the UV index intensity in January in South Dayton?

In South Dayton, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
34.9°F 1.6°C
28.2°F -2.1°C
31.1°F -0.5°C
Average low temperature
26.2°F -3.2°C
18°F -7.8°C
19.2°F -7.1°C
Average pressure
30.07" 764mmHg
30.07" 764mmHg
30.05" 763mmHg
Average wind speed
10.8mph 17.4km/h
11.5mph 18.5km/h
10.6mph 17.1km/h
Average max. wind speed
11.5mph 18.5km/h
12.2mph 19.6km/h
11.4mph 18.3km/h
Average wind speed gusts
16.6mph 26.7km/h
17.6mph 28.3km/h
16.5mph 26.6km/h
Average humidity
86%
88%
88%
Average rainfall
1.97" 50mm
1.81" 46mm
1.93" 49mm
Average rainfall days
8.1
5.5
6.3
Average snowfall
4.65" 118mm
4.69" 119mm
5.47" 139mm
Average snowfall days
11.3
11.5
11.2
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
2h 4min
2h 2min
2h 5min
Average sunshine days
12.6
13
12.5
Average UV index
1
1
1
Average cloud cover
74%
77%
74%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in January
South Dayton, NY

Average temperature in January - South Dayton, NY
  • Average high temperature in January: 28.2°F

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in January
South Dayton, NY

Average pressure in January - South Dayton, NY
  • Average pressure in January: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
South Dayton, NY

Average wind speed in January - South Dayton, NY
  • Average wind speed in January: 11.5mph

The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in January
South Dayton, NY

Average humidity in January - South Dayton, NY
  • Average humidity in January: 88%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is September (80%).

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Average rainfall in January
South Dayton, NY

Average rainfall in January - South Dayton, NY
  • Average rainfall in January: 1.81"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.81").

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Average rainfall days in January
South Dayton, NY

Average rainfall days in January - South Dayton, NY
  • Average rainfall days in January: 5.5 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (5.5 days).

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Average snowfall in January
South Dayton, NY

Average snowfall in January - South Dayton, NY
  • Average snowfall in January: 4.69"

The month with the highest snowfall is November (5.79").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
South Dayton, NY

Average snowfall days in January - South Dayton, NY
  • Average snowfall days in January: 11.5 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
South Dayton, NY

Average daylight in January / Average sunshine in January - South Dayton, NY
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 2h and 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in January
South Dayton, NY

Average sunshine days in January - South Dayton, NY
  • Average sunshine days in January: 13 days

The month with the most sunshine days is March (14 days).
The month with the least sunshine days is May (8.4 days).

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Average UV index in January
South Dayton, NY

Average UV index in January - South Dayton, NY
  • Average UV index in January: 1

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

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Average cloud cover in January
South Dayton, NY

Average cloud cover in January - South Dayton, NY
  • Average cloud cover in January: 77

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in January
South Dayton, NY

Average visibility in January - South Dayton, NY
  • Average visibility in January: 5mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).

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South Dayton, New York, USA

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