October weather forecast
Webster Groves, MO

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Weather in October

The transition from summer to fall culminates in October in Webster Groves, Missouri. Cooling temperatures foster the arrival of sweater weather, with residents enthusiastic about the wonderful fall foliage unfolding in the city's parks and trails. October evokes a sense of excitement locally, with Halloween decorations adorning houses. Though the skies remain clear, locals anticipate early morning fog or mild showers in this period. The decline in daylight is palpable, signaling a nudge towards winter time.

Temperature

Transition into October marks a drop in the average high-temperature, moving from a warm 79.7°F (26.5°C) in September to an enjoyable 66.4°F (19.1°C). An average temperature of 49.5°F (9.7°C) is recorded in Webster Groves during the nights in October.

Humidity

October is the least humid month, with an average relative humidity of 70%.

Rainfall

In Webster Groves, in October, it is raining for 10.1 days, with typically 2.17" (55mm) of accumulated precipitation. In Webster Groves, during the entire year, the rain falls for 144.8 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In October, the average length of the day is 11h and 11min.
On the first day of the month, sunrise is at 6:57 am and sunset at 6:43 pm. On the last day of October, sunrise is at 7:27 am and sunset at 6:02 pm CDT.

Sunshine

The average sunshine in October is 6.2h.

UV index

The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 3 in October translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures?

The high-temperature, in October, in Webster Groves, records 66.4°F (19.1°C), while the low-temperature is 49.5°F (9.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 95°F (35°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 70%.

What is the average humidity in October?

The average relative humidity in October is 70%.

How much does it rain in October?

In October, the rain falls for 10.1 days. Throughout October, 2.17" (55mm) of precipitation is accumulated.

When it does not snow?

In Webster Groves, snow does not fall in April through October.

Does it snow in October?

In Webster Groves, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October?

In Webster Groves, Missouri, the average day length in October is 11h and 11min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:57 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 6:02 pm CDT.

How long on average sun shines in October?

The average sunshine duration in October is 6.2h.

How high is the UV index in October?

In Webster Groves, Missouri, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Webster Groves, MO

Average temperature in October - Webster Groves, MO
  • Average high temperature in October: 66.4°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 October: 49.5°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 October
Webster Groves, MO

Average pressure in October - Webster Groves, MO
  • Average pressure in October: 30.03"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 October
Webster Groves, MO

Average wind speed in October - Webster Groves, MO
  • Average wind speed in October: 7.8mph

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 October
Webster Groves, MO

Average humidity in October - Webster Groves, MO
  • Average humidity in October: 70%

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

Average rainfall in October
Webster Groves, MO

Average rainfall in October - Webster Groves, MO
  • Average rainfall in October: 2.17"

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 October
Webster Groves, MO

Average rainfall days in October - Webster Groves, MO
  • Average rainfall days in October: 10.1 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 October
Webster Groves, MO

Average snowfall in October - Webster Groves, MO
  • Average snowfall in October: 0"

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 October
Webster Groves, MO

Average snowfall days in October - Webster Groves, MO
  • Average snowfall days in October: 0.1 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 October /
Average sunshine in October
Webster Groves, MO

Average daylight in October / Average sunshine in October - Webster Groves, MO
  • Average daylight in October: 11h and 1min

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 October: 6h and 1min

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 October
Webster Groves, MO

Average sunshine days in October - Webster Groves, MO
  • Average sunshine days in October: 20 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 October
Webster Groves, MO

Average UV index in October - Webster Groves, MO
  • Average UV index in October: 3

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 October
Webster Groves, MO

Average cloud cover in October - Webster Groves, MO
  • Average cloud cover in October: 32

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 October
Webster Groves, MO

Average visibility in October - Webster Groves, MO
  • Average visibility in October: 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).

Webster Groves, Missouri, USA

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