June weather forecast
Webster Groves, MO

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Weather in June

June brings eagerly anticipated summer weather to Webster Groves, Missouri. Robust daylight conditions persist, especially towards the end of the month, leading to more outdoor activities and enjoyment of local attractions. High temperatures signpost the peak of the season, creating a quintessential summer atmosphere with frequent visits to swimming pools and air conditioning becoming a norm. Humidity is present, but the breezy climate helps counter the adverse effects. Sudden, brief showers or thunderstorms are not uncommon in this period, adding to the season's character.

Temperature

Webster Groves's transition into June sees a rise in the average high-temperature, advancing from 74.8°F (23.8°C) in May to a still moderately hot 84.2°F (29°C). In Webster Groves, June nights witness a steady temperature drop to a comfortable 67.1°F (19.5°C).

Heat index

June's average heat index is calculated to be a tropical 93.2°F (34°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The average relative humidity in June in Webster Groves, Missouri, is 76%.

Rainfall

In Webster Groves, during June, the rain falls for 15.8 days and regularly aggregates up to 3.5" (89mm) of precipitation. Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The month with the longest days is June, with an average of 14h and 48min of daylight.
On the first day of June in Webster Groves, sunrise is at 5:38 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:29 pm CDT.

Sunshine

June and July, with an average of 10.5h of sunshine, are months with the most sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 6 in June transforms into this advice:
Shield from overexposure. Defense against sun-related harm is required. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

Is it hot in Webster Groves during June?

The average high-temperature and low-temperature in Webster Groves during June are 84.2°F (29°C) and 67.1°F (19.5°C) respectively. In June, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 93.2°F (34°C).

What is the average humidity in June in Webster Groves?

In June, the average relative humidity in Webster Groves is 76%.

How many days does it rain in June in Webster Groves?

In Webster Groves, in June, it is raining for 15.8 days, with typically 3.5" (89mm) of accumulated precipitation.

When it does not snow in Webster Groves?

April through October are months without snowfall in Webster Groves, Missouri.

When are the longest days in Webster Groves?

With an average of 14h and 48min of daylight, June has the longest days of the year in Webster Groves, Missouri.

How many hours of daylight does Webster Groves have in June?

In June, the average day length in Webster Groves is 14h and 49min.

When are sunrise and sunset in June in Webster Groves?

In June, on the first day of the month, sunrise is at 5:38 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:29 pm CDT.

What are the months with the most sunshine in Webster Groves?

June and July, with an average of 10.5h of sunshine, are months with the most sunshine.

How many hours of sunshine does Webster Groves have in June?

In Webster Groves, the average sunshine duration in June is 10.5h.

What are the months with the highest UV index in Webster Groves?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in June in Webster Groves?

In Webster Groves, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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 June
Webster Groves, MO

Average temperature in June - Webster Groves, MO
  • Average high temperature in June: 84.2°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 June: 67.1°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).

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Average pressure in June
Webster Groves, MO

Average pressure in June - Webster Groves, MO
  • Average pressure in June: 29.92"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).

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Average wind speed in June
Webster Groves, MO

Average wind speed in June - Webster Groves, MO
  • Average wind speed in June: 6.4mph

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).

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Average humidity in June
Webster Groves, MO

Average humidity in June - Webster Groves, MO
  • Average humidity in June: 76%

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

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Average rainfall in June
Webster Groves, MO

Average rainfall in June - Webster Groves, MO
  • Average rainfall in June: 3.5"

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

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Average rainfall days in June
Webster Groves, MO

Average rainfall days in June - Webster Groves, MO
  • Average rainfall days in June: 15.8 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).

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Average snowfall in June
Webster Groves, MO

Average snowfall in June - Webster Groves, MO
  • Average snowfall in June: 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").

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Average snowfall days in June
Webster Groves, MO

Average snowfall days in June - Webster Groves, MO
  • Average snowfall days in June: 0 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).

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Average daylight in June /
Average sunshine in June
Webster Groves, MO

Average daylight in June / Average sunshine in June - Webster Groves, MO
  • Average daylight in June: 14h 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 June: 10h and 3min

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).

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Average sunshine days in June
Webster Groves, MO

Average sunshine days in June - Webster Groves, MO
  • Average sunshine days in June: 11.2 days

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

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Average UV index in June
Webster Groves, MO

Average UV index in June - Webster Groves, MO
  • Average UV index in June: 6

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).

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Average cloud cover in June
Webster Groves, MO

Average cloud cover in June - Webster Groves, MO
  • Average cloud cover in June: 28

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in June
Webster Groves, MO

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

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Webster Groves, Missouri, USA

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