January weather forecast
Olivette, MO

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Weather in January

January, the same as December, is an icy winter month in Olivette, Missouri, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 37.8°F (3.2°C).

Temperature

Temperature records mark January as the coldest month, with highs averaging 37.8°F (3.2°C) and lows at 24.3°F (-4.3°C).

Humidity

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

Rainfall

In Olivette, during January, the rain falls for 6.5 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Olivette, Missouri, during the entire year, the rain falls for 144.8 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Olivette. In January, it is snowing for 4.7 days. Throughout January, 2.24" (57mm) of snow is accumulated. Throughout the year, in Olivette, there are 16.2 snowfall days, and 8.19" (208mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 50min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:50 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:21 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.6h of sunshine.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 2 translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Olivette?

With its average high temperature of 37.8°F (3.2°C) and a low of 24.3°F (-4.3°C), January is regarded as the coldest month.

Is it cold in Olivette during January?

January temperatures in Olivette, Missouri, vary between a high-temperature of 37.8°F (3.2°C) and a low-temperature of 24.3°F (-4.3°C).

What is the average humidity in January in Olivette?

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

How much does it rain in Olivette in January?

In Olivette, during January, the rain falls for 6.5 days and regularly aggregates up to 1.73" (44mm) of precipitation.

How many days does it snow in January in Olivette?

In Olivette, during January, snow falls for 4.7 days and regularly aggregates up to 2.24" (57mm) of snow.

What is the average length of the day in January in Olivette?

The average day length in January in Olivette is 9h and 50min.

When is the sunrise / sunset in January in Olivette?

In January, on the first day of the month, sunrise is at 7:19 am and sunset at 4:50 pm. On the last day of the month, in Olivette, Missouri, sunrise is at 7:08 am and sunset at 5:21 pm CST.

What is the month with the least sunshine in Olivette?

With an average of 4.6h of sunshine, January has the least sunshine of the year.

How many hours of sunshine does Olivette have in January?

In January, the average sunshine duration in Olivette, Missouri, is 4.6h.

What is the month with the lowest UV index in Olivette?

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

What is the UV index reading in January in Olivette?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes 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
Olivette, MO

Average temperature in January - Olivette, MO
  • Average high temperature in January: 37.8°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in January
Olivette, MO

Average pressure in January - Olivette, 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
Olivette, MO

Average wind speed in January - Olivette, MO
  • Average wind speed in January: 9.2mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in January
Olivette, MO

Average humidity in January - Olivette, 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
Olivette, MO

Average rainfall in January - Olivette, MO
  • Average rainfall in January: 1.73"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in January
Olivette, MO

Average rainfall days in January - Olivette, MO
  • Average rainfall days in January: 6.5 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in January
Olivette, MO

Average snowfall in January - Olivette, MO
  • Average snowfall in January: 2.24"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Olivette, MO

Average snowfall days in January - Olivette, MO
  • Average snowfall days in January: 4.7 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in January / Average sunshine in January - Olivette, 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 January (Average sunshine: 4h and 36min).

Average sunshine days in January
Olivette, MO

Average sunshine days in January - Olivette, MO
  • Average sunshine days in January: 21 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in January
Olivette, MO

Average UV index in January - Olivette, 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
Olivette, MO

Average cloud cover in January - Olivette, 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
Olivette, MO

Average visibility in January - Olivette, 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).

Olivette, Missouri, USA

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