June weather forecast
Affton, MO

Share

Weather in June

June in Affton, Missouri, signals the full flourishing of the summer season. The prolonged daylight hours and the increasing temperature sets the stage for outdoor activities. On the other hand, June can be a humid month, making hydration and sunscreen vital elements of any outdoor plan. Breath-taking sunsets paint the sky in brilliant hues, while the nighttime air is filled with echoing symphonies of nocturnal wildlife. Overall, it's an ideal time for picnics, barbecues, and road trips.

Temperature

June comes with a subtle rise, with the average high-temperature adjusting from 75.4°F (24.1°C) in May to a still warm 84°F (28.9°C). Affton records an average low of 66.7°F (19.3°C) throughout the nights in June.

Heat index

The heat index in June is calculated to be a hot 93.2°F (34°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

In Affton, Missouri, the average relative humidity in June is 77%.

Rainfall

In Affton, in June, during 16 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. In Affton, during the entire year, the rain falls for 146.1 days and collects up to 32.36" (822mm) of precipitation.

Snowfall

April through October are months without snowfall in Affton.

Daylight

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

Sunshine

The month with the most sunshine in Affton, Missouri, is June, with an average of 10.4h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In June, a daily UV index of 6 turns into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
[Resources]

Frequently asked questions

How hot is June in Affton?

An average high-temperature, in June, in Affton, is 84°F (28.9°C) and the average low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in June is calculated to be 93.2°F (34°C).

What is the average humidity in June in Affton?

In Affton, the average relative humidity in June is 77%.

How many days does it rain in June in Affton?

In Affton, in June, it is raining for 16 days, with typically 3.7" (94mm) of accumulated precipitation.

When it does not snow in Affton?

In Affton, Missouri, snow does not fall in April through October.

When are the longest days in Affton?

June has the longest days of the year, with an average of 14h and 48min of daylight.

How many hours of daylight does Affton have in June?

The average day length in June is 14h and 49min.

When are sunrise and sunset in June in Affton?

On the first day of June in Affton, 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 month has the most sunshine in Affton?

June has the most sunshine of the year in Affton, Missouri, with an average of 10.4h of sunshine.

How many hours of sunshine does Affton have in June?

The average sunshine duration in June is 10.4h.

When is the highest UV index in Affton?

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

What is the UV index reading in June in Affton?

The average daily maximum UV index in June in Affton, Missouri, is 6. A UV Index of 6 to 7 symbolizes a high health risk 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 June
Affton, MO

Average temperature in June - Affton, MO
  • Average high temperature in June: 84°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 (37.9°F).

  • Average low temperature in June: 66.7°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).

[Resources]

Average pressure in June
Affton, MO

Average pressure in June - Affton, 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).

[Resources]

Average wind speed in June
Affton, MO

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

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

[Resources]

Average humidity in June
Affton, MO

Average humidity in June - Affton, MO
  • Average humidity in June: 77%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).

[Resources]

Average rainfall in June
Affton, MO

Average rainfall in June - Affton, MO
  • Average rainfall in June: 3.7"

The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").

[Resources]

Average rainfall days in June
Affton, MO

Average rainfall days in June - Affton, MO
  • Average rainfall days in June: 16 days

The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).

[Resources]

Average snowfall in June
Affton, MO

Average snowfall in June - Affton, 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").

[Resources]

Average snowfall days in June
Affton, MO

Average snowfall days in June - Affton, MO
  • Average snowfall days in June: 0 days

The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in June /
Average sunshine in June
Affton, MO

Average daylight in June / Average sunshine in June - Affton, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

[Resources]

Average sunshine days in June
Affton, MO

Average sunshine days in June - Affton, MO
  • Average sunshine days in June: 11.6 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).

[Resources]

Average UV index in June
Affton, MO

Average UV index in June - Affton, 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).

[Resources]

Average cloud cover in June
Affton, MO

Average cloud cover in June - Affton, MO
  • Average cloud cover in June: 29

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

[Resources]

Average visibility in June
Affton, MO

Average visibility in June - Affton, 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).

[Resources]

Affton, Missouri, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location