February weather forecast and climate
St. Louis, MO

A beautiful twilight over the Gateway Arch in St. Louis, Missouri
A beautiful twilight over the Gateway Arch in St. Louis, Missouri

Weather in February

February, the last month of the winter, in St. Louis, is a chilly month, with average temperature fluctuating between 27.7°F (-2.4°C) and 45°F (7.2°C).

Temperature

In St. Louis, the average high-temperature is essentially the same as in January - a frosty 45°F (7.2°C). In St. Louis, Missouri,, the average low-temperature is 27.7°F (-2.4°C).

Humidity

In February, the average relative humidity in St. Louis is 72%.

Rainfall

February is the month with the least rainfall in St. Louis. Rain falls for 8 days and accumulates 2.24" (56.9mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in St. Louis. In St. Louis, Missouri,, during 3.4 snowfall days, 4.3" (109.2mm) of snow is typically accumulated. In St. Louis, Missouri, during the entire year, snow falls for 14.5 days, and aggregates up to 17.7" (449.6mm) of snow.

Daylight

In St. Louis, the average length of the day in February is 10.8h.

Sunshine

The average sunshine in St. Louis is 5.7h.

UV index

In February, the average daily maximum UV index in St. Louis is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 in February interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in February in St. Louis?

In February, the average relative humidity in St. Louis is 72%.

What is the driest month in St. Louis?

The month with the least rainfall in St. Louis, Missouri, is February when the rain falls for 8 days and typically collects 2.24" (56.9mm) of precipitation.

How many days does it rain in February in St. Louis?

In February, the rain falls for 8 days. Throughout February, 2.24" (56.9mm) of precipitation is accumulated.

How much does it snow in St. Louis in February?

In St. Louis, in February, during 3.4 snowfall days, 4.3" (109.2mm) of snow is typically accumulated.

What is the average length of the day in February in St. Louis?

In February, the average length of the day in St. Louis is 10.8h.

How long on average sun shines in February in St. Louis?

In February, the average sunshine in St. Louis is 5.7h.

How high is the UV index in February in St. Louis?

In February, the average daily maximum UV index in St. Louis, Missouri, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in February
St. Louis, MO

Average temperature in February - St. Louis, MO
  • Average high temperature in February: 7.2°C

The warmest month (with the highest average high temperature) is July (31.7°C).
The month with the lowest average high temperature is January (4.4°C).

  • Average low temperature in February: -2.4°C

The month with the highest average low temperature is July (21.7°C).
The coldest month (with the lowest average low temperature) is January (-4.6°C).

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Average humidity in February
St. Louis, MO

Average humidity in February - St. Louis, MO
  • Average humidity in February: 72%

The month with the highest relative humidity is December (75.8%).
The month with the lowest relative humidity is April (63.5%).

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Average rainfall in February
St. Louis, MO

Average rainfall in February - St. Louis, MO
  • Average rainfall in February: 56.9mm

The wettest month (with the highest rainfall) is May (119.9mm).
The driest month (with the least rainfall) is February (56.9mm).

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Average rainfall days in February
St. Louis, MO

Average rainfall days in February - St. Louis, MO
  • Average rainfall days in February: 8 days

The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is September (7.4 days).

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Average snowfall in February
St. Louis, MO

Average snowfall in February - St. Louis, MO
  • Average snowfall in February: 109.2mm

The month with the highest snowfall is January (142.2mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in February
St. Louis, MO

Average snowfall days in February - St. Louis, MO
  • Average snowfall days in February: 3.4 days

The month with the highest number of snowfall days is January (4.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in February /
Average sunshine in February
St. Louis, MO

Average daylight in February / Average sunshine in February - St. Louis, MO
  • Average daylight in February: 10.8h

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 February: 5.7h

The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is December (Average sunshine: 4.2h).

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Average UV index in February
St. Louis, MO

Average UV index in February - St. Louis, MO
  • Average UV index in February: 3

Months with the highest UV index are June, July and August (UV index 9).
Months with the lowest UV index are January and December (UV index 2).

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