January weather forecast
Dellwood, MO

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Weather in January

January, the same as December, is another cold winter month in Dellwood, Missouri, with an average temperature ranging between max 37.2°F (2.9°C) and min 24.1°F (-4.4°C).

Temperature

January, with an average high of 37.2°F (2.9°C) and a low of 24.1°F (-4.4°C), signifies the coldest month of the year.

Humidity

The average relative humidity in January is 75%.

Rainfall

In Dellwood, during January, the rain falls for 7.3 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Dellwood, during the entire year, the rain falls for 149 days and collects up to 31.61" (803mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Dellwood, during January, snow falls for 6.7 days and regularly aggregates up to 2.32" (59mm) of snow. In Dellwood, during the entire year, snow falls for 19.5 days and aggregates up to 8.82" (224mm) of snow.

Daylight

The average length of the day in January is 9h and 49min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:49 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:21 pm CST.

Sunshine

The average sunshine in January is 4.7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health 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:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

In Dellwood, January is the coldest month, with temperatures averaging a high of 37.2°F (2.9°C) and a low of 24.1°F (-4.4°C).

How cold is January?

In January, the average high-temperature and low-temperature are 37.2°F (2.9°C) and 24.1°F (-4.4°C) respectively.

What is the average humidity in January in Dellwood?

In Dellwood, the average relative humidity in January is 75%.

How much does it rain in Dellwood in January?

In January, the rain falls for 7.3 days. Throughout January, 1.85" (47mm) of precipitation is accumulated.

How many days does it snow in January?

In Dellwood, in January, during 6.7 snowfall days, 2.32" (59mm) of snow is typically accumulated.

What is the average length of the day in January?

In Dellwood, the average day length in January is 9h and 49min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:19 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:21 pm CST.

How many hours of sunshine does Dellwood have in January?

In Dellwood, the average sunshine duration in January is 4.7h.

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

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

What is the UV index reading in January?

In Dellwood, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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
Dellwood, MO

Average temperature in January - Dellwood, MO
  • Average high temperature in January: 37.2°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in January: 24.1°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in January
Dellwood, MO

Average pressure in January - Dellwood, 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 (29.92"Hg).

Average wind speed in January
Dellwood, MO

Average wind speed in January - Dellwood, MO
  • Average wind speed in January: 9.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

Average humidity in January
Dellwood, MO

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

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Dellwood, MO

Average rainfall in January - Dellwood, MO
  • Average rainfall in January: 1.85"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in January
Dellwood, MO

Average rainfall days in January - Dellwood, MO
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in January
Dellwood, MO

Average snowfall in January - Dellwood, MO
  • Average snowfall in January: 2.32"

The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Dellwood, MO

Average snowfall days in January - Dellwood, MO
  • Average snowfall days in January: 6.7 days

The month with the highest number of snowfall days is January (6.7 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
Dellwood, MO

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 4h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
Dellwood, MO

Average sunshine days in January - Dellwood, MO
  • Average sunshine days in January: 18.8 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11 days).

Average UV index in January
Dellwood, MO

Average UV index in January - Dellwood, 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).

Average cloud cover in January
Dellwood, MO

Average cloud cover in January - Dellwood, MO
  • Average cloud cover in January: 50

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in January
Dellwood, MO

Average visibility in January - Dellwood, 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).

Dellwood, Missouri, USA

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