January weather forecast
Griffith, IN

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Weather in January

January, like December, is a freezing cold winter month in Griffith, Indiana, with an average temperature varying between 30°F (-1.1°C) and 18.9°F (-7.3°C).

Temperature

Griffith's January weather, marked by an average high temperature of 30°F (-1.1°C) and an average low temperature of 18.9°F (-7.3°C), is the coldest in the year.

Humidity

In Griffith, the average relative humidity in January is 82%.

Rainfall

In January, the rain falls for 5.6 days. Throughout January, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 146.6 rainfall days, and 23.31" (592mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In January, in Griffith, it is snowing for 12.4 days. Throughout January, 3.23" (82mm) of snow is accumulated. In Griffith, during the entire year, snow falls for 45.5 days and aggregates up to 12.64" (321mm) of snow.

Daylight

In Griffith, the average length of the day in January is 9h and 35min.
On the first day of the month, sunrise is at 7:16 am and sunset at 4:30 pm. On the last day of January, sunrise is at 7:02 am and sunset at 5:03 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.5h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 1 during January translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Griffith's temperature records reveal January as the coldest month, marked by average highs of 30°F (-1.1°C) and lows of 18.9°F (-7.3°C).

How cold is it in January?

The average high-temperature and low-temperature during January are 30°F (-1.1°C) and 18.9°F (-7.3°C) respectively.

What is the average humidity in January?

In January, the average relative humidity is 82%.

How much does it rain in January?

In Griffith, in January, during 5.6 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

How much does it snow in January?

In Griffith, in January, snow falls for 12.4 days, with typically accumulated 3.23" (82mm) of snow.

What is the average length of the day in January?

In Griffith, the average day length in January is 9h and 35min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:16 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:03 pm CST.

What is the month with the least sunshine in Griffith?

January has the least sunshine of the year, with an average of 3.5h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 3.5h.

What are the months with the lowest UV index?

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

What is the UV index reading in January?

In Griffith, Indiana, the average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Griffith, IN

Average temperature in January - Griffith, IN
  • Average high temperature in January: 30°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in January: 18.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in January
Griffith, IN

Average pressure in January - Griffith, IN
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Griffith, IN

Average wind speed in January - Griffith, IN
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in January
Griffith, IN

Average humidity in January - Griffith, IN
  • Average humidity in January: 82%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in January
Griffith, IN

Average rainfall in January - Griffith, IN
  • Average rainfall in January: 1.1"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is November (1.06").

Average rainfall days in January
Griffith, IN

Average rainfall days in January - Griffith, IN
  • Average rainfall days in January: 5.6 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in January
Griffith, IN

Average snowfall in January - Griffith, IN
  • Average snowfall in January: 3.23"

The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Griffith, IN

Average snowfall days in January - Griffith, IN
  • Average snowfall days in January: 12.4 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Griffith, IN

Average daylight in January / Average sunshine in January - Griffith, IN
  • Average daylight in January: 9h and 4min

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

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in January
Griffith, IN

Average sunshine days in January - Griffith, IN
  • Average sunshine days in January: 14.3 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (10.2 days).

Average UV index in January
Griffith, IN

Average UV index in January - Griffith, IN
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
Griffith, IN

Average cloud cover in January - Griffith, IN
  • Average cloud cover in January: 64

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in January
Griffith, IN

Average visibility in January - Griffith, IN
  • Average visibility in January: 5mi

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

Griffith, Indiana, USA

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