January weather forecast
Grain Valley, MO

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Weather in January

January, like December, in Grain Valley, Missouri, is a wintry winter month, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 37°F (2.8°C).

Temperature

The lowest temperatures are recorded in January, with averages reaching a high of 37°F (2.8°C) and a low of 22.8°F (-5.1°C).

Humidity

The average relative humidity in January in Grain Valley is 74%.

Rainfall

January is the month with the least rainfall in Grain Valley. Rain falls for 5.2 days and accumulates 1.06" (27mm) of precipitation.

Snowfall

Months with snowfall in Grain Valley are January through May, October through December. In Grain Valley, in January, during 5.5 snowfall days, 2.99" (76mm) of snow is typically accumulated. In Grain Valley, during the entire year, snow falls for 20.9 days and aggregates up to 10.67" (271mm) of snow.

Daylight

In January, the average length of the day in Grain Valley is 9h and 48min.
On the first day of January, sunrise is at 7:35 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:36 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 5h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index, 2 during January, leads to the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

What time of the year is the coldest in Grain Valley?

January, known for its average high temperature of 37°F (2.8°C) and an average low temperature of 22.8°F (-5.1°C), is the coldest month.

How cold is it in Grain Valley in January?

January temperatures vary between a high-temperature of 37°F (2.8°C) and a low-temperature of 22.8°F (-5.1°C).

What is the average humidity in January in Grain Valley?

The average relative humidity in January in Grain Valley, Missouri, is 74%.

What is the driest month in Grain Valley?

January is the month with the least rainfall in Grain Valley. Rain falls for 5.2 days and accumulates 1.06" (27mm) of precipitation.

How much does it rain in Grain Valley in January?

In Grain Valley, Missouri, during January, the rain falls for 5.2 days and regularly aggregates up to 1.06" (27mm) of precipitation.

How much does it snow in Grain Valley in January?

In Grain Valley, in January, snow falls for 5.5 days, with typically accumulated 2.99" (76mm) of snow.

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

The average day length in January in Grain Valley, Missouri, is 9h and 48min.

When are sunrise and sunset in January in Grain Valley?

On the first day of January in Grain Valley, sunrise is at 7:35 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:36 pm CST.

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

The month with the least sunshine in Grain Valley, Missouri, is January, with an average of 5h of sunshine.

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

In Grain Valley, the average sunshine duration in January is 5h.

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

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

How high is the UV index in January in Grain Valley?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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
Grain Valley, MO

Average temperature in January - Grain Valley, MO
  • Average high temperature in January: 37°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in January: 22.8°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure in January
Grain Valley, MO

Average pressure in January - Grain Valley, MO
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in January
Grain Valley, MO

Average wind speed in January - Grain Valley, MO
  • Average wind speed in January: 9.8mph

The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in January
Grain Valley, MO

Average humidity in January - Grain Valley, MO
  • Average humidity in January: 74%

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

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Average rainfall in January
Grain Valley, MO

Average rainfall in January - Grain Valley, MO
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in January
Grain Valley, MO

Average rainfall days in January - Grain Valley, MO
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (5.2 days).

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Average snowfall in January
Grain Valley, MO

Average snowfall in January - Grain Valley, MO
  • Average snowfall in January: 2.99"

The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Grain Valley, MO

Average snowfall days in January - Grain Valley, MO
  • Average snowfall days in January: 5.5 days

The month with the highest number of snowfall days is February (6.6 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
Grain Valley, MO

Average daylight in January / Average sunshine in January - Grain Valley, MO
  • 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 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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Average sunshine days in January
Grain Valley, MO

Average sunshine days in January - Grain Valley, MO
  • Average sunshine days in January: 20.3 days

The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in January
Grain Valley, MO

Average UV index in January - Grain Valley, 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, November and December (UV index 2).

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Average cloud cover in January
Grain Valley, MO

Average cloud cover in January - Grain Valley, MO
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in January
Grain Valley, MO

Average visibility in January - Grain Valley, 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).

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Grain Valley, Missouri, USA

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