January weather forecast
Clay, MO

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Weather in January

January, like December, in Clay, Missouri, is another cold winter month, with an average temperature ranging between max 32°F (0°C) and min 18.9°F (-7.3°C).

Temperature

January, noted for its average high-temperature of 32°F (0°C) and an average low-temperature of 18.9°F (-7.3°C), is considered the coldest month.

Humidity

In January, the average relative humidity in Clay is 79%.

Rainfall

The month with the least rainfall is January, when the rain falls for 4.8 days and typically collects 1.06" (27mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall in Clay, Missouri, is January, when snow falls for 7.9 days and typically aggregates up to 3.5" (89mm) of snow.

Daylight

In Clay, Missouri, the average length of the day in January is 9h and 42min.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:54 pm. On the last day of January, in Clay, sunrise is at 7:19 am and sunset at 5:26 pm CST.

Sunshine

January has the least sunshine of the year in Clay, with an average of 4.5h 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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are the coldest months in Clay?

January, with average temperatures reaching a high of 32°F (0°C) and a low of 18.9°F (-7.3°C), is the coldest month.

How cold is January in Clay?

The average high-temperature, in January, in Clay, is 32°F (0°C), while the average low-temperature is 18.9°F (-7.3°C).

What is the average humidity in January in Clay?

In January, the average relative humidity is 79%.

What is the driest month in Clay?

The month with the least rainfall in Clay is January, when the rain falls for 4.8 days and typically collects 1.06" (27mm) of precipitation.

How many days does it rain in January in Clay?

In Clay, Missouri, in January, during 4.8 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

What is the snowiest month in Clay?

January is the month with the most snowfall. Snow falls for 7.9 days and accumulates 3.5" (89mm) of snow.

How many days does it snow in January in Clay?

In January, it is snowing for 7.9 days. Throughout January, 3.5" (89mm) of snow is accumulated.

How many hours of daylight does Clay have in January?

In January, the average day length in Clay is 9h and 42min.

When are sunrise and sunset in January in Clay?

In January, on the first day of the month, sunrise is at 7:32 am and sunset at 4:54 pm. On the last day of the month, in Clay, sunrise is at 7:19 am and sunset at 5:26 pm CST.

What is the month with the least sunshine in Clay?

The month with the least sunshine in Clay is January, with an average of 4.5h of sunshine.

How long on average sun shines in January in Clay?

The average sunshine duration in January in Clay, Missouri, is 4.5h.

When is the lowest UV index in Clay?

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

What is the UV index reading in January in Clay?

In Clay, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
37.4°F 3°C
32°F 0°C
36.7°F 2.6°C
Average low temperature
25.2°F -3.8°C
18.9°F -7.3°C
22.6°F -5.2°C
Average pressure
30.12" 765mmHg
30.16" 766mmHg
30.13" 765mmHg
Average wind speed
9.9mph 15.9km/h
10.5mph 16.9km/h
10.5mph 16.9km/h
Average max. wind speed
10.6mph 17.1km/h
11.2mph 18km/h
11.1mph 17.9km/h
Average wind speed gusts
16.1mph 25.9km/h
16.8mph 27km/h
16.5mph 26.6km/h
Average humidity
79%
79%
78%
Average rainfall
1.18" 30mm
1.06" 27mm
1.22" 31mm
Average rainfall days
6.8
4.8
5.8
Average snowfall
1.46" 37mm
3.5" 89mm
3.43" 87mm
Average snowfall days
4.9
7.9
6.3
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 5min
4h 3min
4h 5min
Average sunshine days
20
19.5
16.6
Average UV index
2
2
2
Average cloud cover
48%
51%
49%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Clay, MO

Average temperature in January - Clay, MO
  • Average high temperature in January: 32°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in January: 18.9°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in January
Clay, MO

Average pressure in January - Clay, 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 (29.9"Hg).

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Average wind speed in January
Clay, MO

Average wind speed in January - Clay, MO
  • Average wind speed in January: 10.5mph

The windiest months (with the highest average wind speed) are January and February (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in January
Clay, MO

Average humidity in January - Clay, MO
  • Average humidity in January: 79%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
Clay, MO

Average rainfall in January - Clay, MO
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in January
Clay, MO

Average rainfall days in January - Clay, MO
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in January
Clay, MO

Average snowfall in January - Clay, MO
  • Average snowfall in January: 3.5"

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

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Average snowfall days in January
Clay, MO

Average snowfall days in January - Clay, MO
  • Average snowfall days in January: 7.9 days

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Clay, MO
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in January
Clay, MO

Average sunshine days in January - Clay, MO
  • Average sunshine days in January: 19.5 days

The month with the most sunshine days is December (20 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index in January
Clay, MO

Average UV index in January - Clay, MO
  • Average UV index in January: 2

The months with the highest UV index are 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
Clay, MO

Average cloud cover in January - Clay, MO
  • Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in January
Clay, MO

Average visibility in January - Clay, 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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Clay, Missouri, USA

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