January weather forecast and climate
Maryland Heights, MO

January, like December, in Maryland Heights, Missouri, is another cold winter month, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 37.2°F (2.9°C).

Temperature

With an average high-temperature of 37.2°F (2.9°C) and an average low-temperature of 24.3°F (-4.3°C), January is the coldest month.

Humidity

The average relative humidity in January is 75%.

Rainfall

In Maryland Heights, it is raining for 7.8 days, with typically 1.61" (41mm) of accumulated precipitation. Throughout the year, in Maryland Heights, there are 141.9 rainfall days, and 27.68" (703mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Maryland Heights are January through March, November and December. In Maryland Heights, during January, snow falls for 6.8 days and regularly aggregates up to 1.46" (37mm) of snow. Throughout the year, in Maryland Heights, there are 21.6 snowfall days, and 6.73" (171mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9.8h.

Sunshine

The month with the least sunshine in Maryland Heights 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 in Maryland Heights. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Maryland Heights?

With an average high-temperature of 37.2°F (2.9°C) and an average low-temperature of 24.3°F (-4.3°C), January is the coldest month in Maryland Heights.

What is the temperature in January in Maryland Heights?

In Maryland Heights, Missouri, in January, the average high-temperature is 37.2°F (2.9°C), and the average low-temperature is 24.3°F (-4.3°C).

What is the average humidity in January in Maryland Heights?

The average relative humidity in January in Maryland Heights, Missouri, is 75%.

How many days does it rain in January in Maryland Heights?

In Maryland Heights, Missouri, in January, it is raining for 7.8 days, with typically 1.61" (41mm) of accumulated precipitation.

How many days does it snow in January in Maryland Heights?

In Maryland Heights, Missouri, in January, snow falls for 6.8 days, with typically accumulated 1.46" (37mm) of snow.

How many hours of daylight does Maryland Heights have in January?

The average length of the day in January in Maryland Heights, Missouri, is 9.8h.

What is the month with the least sunshine in Maryland Heights?

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

How long on average sun shines in January in Maryland Heights?

The average sunshine in January in Maryland Heights is 4.6h.

What is the month with the lowest UV index in Maryland Heights?

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

What is the UV index reading in January in Maryland Heights?

In January, the average daily maximum UV index in Maryland Heights is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in January - Maryland Heights, MO
  • Average high temperature in January: 2.9°C

The warmest month (with the highest average high temperature) is July (30.4°C).
The month with the lowest average high temperature is January (2.9°C).

  • Average low temperature in January: -4.3°C

The month with the highest average low temperature is July (20.5°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).

Average pressure in January - Maryland Heights, MO
  • Average pressure in January: 1021.2mbar

The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1013.2mbar).

Average wind speed in January - Maryland Heights, MO
  • Average wind speed in January: 14.9km/h

The windiest month (with the highest average wind speed) is January (14.9km/h).
The calmest months (with the lowest average wind speed) are July and August (9km/h).

Average humidity in January - Maryland Heights, MO
  • Average humidity in January: 75%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January - Maryland Heights, MO
  • Average rainfall in January: 41mm

The wettest month (with the highest rainfall) is May (84mm).
The driest month (with the least rainfall) is February (36mm).

Average rainfall days in January - Maryland Heights, MO
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is July (16.3 days).
Months with the least rainy days are February and December (7.3 days).

Average snowfall in January - Maryland Heights, MO
  • Average snowfall in January: 37mm

The month with the highest snowfall is February (52mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in January - Maryland Heights, MO
  • Average snowfall days in January: 6.8 days

The month with the highest number of snowfall days is January (6.8 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Maryland Heights, MO
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in January: 4.6h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 4.6h).

Average sunshine days in January - Maryland Heights, MO
  • Average sunshine days in January: 18.7 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in January - Maryland Heights, MO
  • Average UV index in January: 2

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in January - Maryland Heights, 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 - Maryland Heights, MO
  • Average visibility in January: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).