January weather forecast
Hazelwood, MO

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Weather in January

January in Hazelwood, Missouri ushers in the frigid charm of winter. Temperatures take a dip, with highs of 37.2°F (2.9°C) and lows reaching 24.3°F (-4.3°C). The month is characterized by a considerable cloud cover, as well as significant snowfall. The city comes alive with winter activities, making this month ideal for those loving the crisp winter air. However, the overall visibility remains less, typical of winter months.

Temperature

January proves to be the coldest month, recording an average maximum temperature of 37.2°F (2.9°C) and a minimum temperature of 24.3°F (-4.3°C).

Humidity

The average relative humidity in January is 75%.

Rainfall

In Hazelwood, in January, it is raining for 7.8 days, with typically 1.61" (41mm) of accumulated precipitation. In Hazelwood, during the entire year, the rain falls for 141.9 days and collects up to 27.68" (703mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Hazelwood, in January, during 6.8 snowfall days, 1.46" (37mm) of snow is typically accumulated. In Hazelwood, during the entire year, snow falls for 21.6 days and aggregates up to 6.73" (171mm) 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 4:50 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:21 pm CST.

Sunshine

January has the least sunshine of the year, 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 Hazelwood, Missouri. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To cut down UV radiation exposure by about half, sport a wide-brim hat. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

What month is the coldest?

January is the month when Hazelwood experiences its coldest temperatures, averaging a high of 37.2°F (2.9°C) and a low of 24.3°F (-4.3°C).

How cold is it in Hazelwood in January?

In Hazelwood, 37.2°F (2.9°C) is the average high-temperature and 24.3°F (-4.3°C) is the average low-temperature during January.

What is the average humidity in January?

The average relative humidity in January is 75%.

How much does it rain in January?

In Hazelwood, in January, during 7.8 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Hazelwood, in January, during 6.8 snowfall days, 1.46" (37mm) of snow is typically accumulated.

How many hours of daylight does Hazelwood have in January?

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

What time are sunrise and sunset in January?

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, sunrise is at 7:08 am and sunset at 5:21 pm CST.

What is the month with the least sunshine?

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 Hazelwood, the average sunshine duration in January is 4.6h.

When is the lowest UV index?

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

How high is the UV index in January in Hazelwood?

In Hazelwood, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
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
Hazelwood, MO

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

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in January
Hazelwood, MO

Average pressure in January - Hazelwood, 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
Hazelwood, MO

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

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

Average humidity in January
Hazelwood, MO

Average humidity in January - Hazelwood, 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
Hazelwood, MO

Average rainfall in January - Hazelwood, MO
  • Average rainfall in January: 1.61"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (1.42").

Average rainfall days in January
Hazelwood, MO

Average rainfall days in January - Hazelwood, MO
  • Average rainfall days in January: 7.8 days

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

Average snowfall in January
Hazelwood, MO

Average snowfall in January - Hazelwood, MO
  • Average snowfall in January: 1.46"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Hazelwood, MO

Average snowfall days in January - Hazelwood, MO
  • Average snowfall days in January: 6.8 days

The month with the highest number of snowfall days is January (6.8 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
Hazelwood, MO

Average daylight in January / Average sunshine in January - Hazelwood, 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 month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in January
Hazelwood, MO

Average sunshine days in January - Hazelwood, 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
Hazelwood, MO

Average UV index in January - Hazelwood, 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
Hazelwood, MO

Average cloud cover in January - Hazelwood, 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
Hazelwood, MO

Average visibility in January - Hazelwood, 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).

Hazelwood, Missouri, USA

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