January weather forecast
Grassy, MO

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Weather in January

January, the same as December, is another cold winter month in Grassy, Missouri, with an average temperature fluctuating between 27°F (-2.8°C) and 41°F (5°C).

Temperature

January, with its high-temperature average of 41°F (5°C) and a low-temperature average of 27°F (-2.8°C), is the coldest month.

Humidity

The average relative humidity in January is 75%.

Rainfall

In Grassy, during January, the rain falls for 9.8 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Grassy, there are 156.4 rainfall days, and 35.47" (901mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In January, in Grassy, it is snowing for 3.5 days. Throughout January, 0.59" (15mm) of snow is accumulated. Throughout the year, there are 11.7 snowfall days, and 4.69" (119mm) of snow is accumulated.

Daylight

In Grassy, the average length of the day in January is 9h and 56min.
On the first day of January in Grassy, Missouri, sunrise is at 7:14 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:23 pm CST.

Sunshine

The average sunshine in January is 4.9h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Grassy. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Grassy?

The lowest temperatures in Grassy are recorded in January, with averages reaching a high of 41°F (5°C) and a low of 27°F (-2.8°C).

How cold does it get in Grassy in January?

During January, Grassy experiences an average high-temperature of 41°F (5°C) and a low-temperature of 27°F (-2.8°C).

What is the average humidity in January in Grassy?

The average relative humidity in January is 75%.

How much does it rain in Grassy in January?

In Grassy, Missouri, in January, it is raining for 9.8 days, with typically 2.28" (58mm) of accumulated precipitation.

How much does it snow in Grassy in January?

In January, it is snowing for 3.5 days. Throughout January, 0.59" (15mm) of snow is accumulated.

How many hours of daylight does Grassy have in January?

In Grassy, the average day length in January is 9h and 56min.

When is the sunrise / sunset in January in Grassy?

On the first day of January in Grassy, Missouri, sunrise is at 7:14 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:23 pm CST.

How many hours of sunshine does Grassy have in January?

The average sunshine duration in January in Grassy, Missouri, is 4.9h.

What are the months with the lowest UV index in Grassy?

The months with the lowest UV index in Grassy, Missouri, are January, February and December, with an average maximum UV index of 2.

What is the UV index reading in January in Grassy?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Average high temperature
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
Grassy, MO

Average temperature in January - Grassy, MO
  • Average high temperature in January: 41°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in January: 27°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in January
Grassy, MO

Average pressure in January - Grassy, MO
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Grassy, MO

Average wind speed in January - Grassy, MO
  • Average wind speed in January: 8.9mph

The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in January
Grassy, MO

Average humidity in January - Grassy, MO
  • Average humidity in January: 75%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Grassy, MO

Average rainfall in January - Grassy, MO
  • Average rainfall in January: 2.28"

The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in January
Grassy, MO

Average rainfall days in January - Grassy, MO
  • Average rainfall days in January: 9.8 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in January
Grassy, MO

Average snowfall in January - Grassy, MO
  • Average snowfall in January: 0.59"

The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Grassy, MO

Average snowfall days in January - Grassy, MO
  • Average snowfall days in January: 3.5 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Grassy, MO

Average daylight in January / Average sunshine in January - Grassy, MO
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in January
Grassy, MO

Average sunshine days in January - Grassy, MO
  • Average sunshine days in January: 18.4 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in January
Grassy, MO

Average UV index in January - Grassy, MO
  • 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 and December (UV index 2).

Average cloud cover in January
Grassy, MO

Average cloud cover in January - Grassy, MO
  • Average cloud cover in January: 47

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in January
Grassy, MO

Average visibility in January - Grassy, MO
  • 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).

Grassy, Missouri, USA

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