June weather forecast
Grain Valley, MO

Share

Weather in June

June, the first month of the summer in Grain Valley, is a warm month, with an average temperature fluctuating between 66°F (18.9°C) and 83.3°F (28.5°C).

Temperature

Grain Valley's June weather brings a rise in high-temperatures, moving from a pleasant 72.7°F (22.6°C) in May to a moderately hot 83.3°F (28.5°C). June witnesses an average nighttime temperature of 66°F (18.9°C).

Heat index

For most parts of June, the heat index is calculated to be a tropical 91.4°F (33°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

The months with the highest humidity in Grain Valley are May and June, with an average relative humidity of 79%.

Rainfall

In Grain Valley, in June, it is raining for 15.4 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, there are 136.1 rainfall days, and 28.78" (731mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The month with the longest days is June, with an average of 14h and 54min of daylight.
On the first day of June in Grain Valley, sunrise is at 5:52 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:46 pm CDT.

Sunshine

June and July, with an average of 10.3h 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 estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

How hot is it in June?

An average high-temperature, in June, in Grain Valley, is 83.3°F (28.5°C) and the average low-temperature is 66°F (18.9°C). In June, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 91.4°F (33°C).

What are the most humid months?

May and June, with an average relative humidity of 79%, are most humid months.

What is the average humidity in June?

In June, the average relative humidity in Grain Valley is 79%.

How many days does it rain in June?

In Grain Valley, during June, the rain falls for 15.4 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in June?

In June, it doesn't snow. May is the latest month when it typically snows.

When are the longest days?

With an average of 14h and 54min of daylight, June has the longest days of the year.

What is the average length of the day in June?

In June, the average day length is 14h and 52min.

What time are sunrise and sunset in June?

On the first day of June, sunrise is at 5:52 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:46 pm CDT.

What are the months with the most sunshine?

The months with the most sunshine are June and July, with an average of 10.3h of sunshine.

How many hours of sunshine does Grain Valley have in June?

In June, the average sunshine duration is 10.3h.

When is the highest UV index in Grain Valley?

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?

The average daily maximum UV index in June in Grain Valley is 6. A UV Index value of 6 to 7 symbolizes 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
Grain Valley, MO

Average temperature in June - Grain Valley, MO
  • Average high temperature in June: 83.3°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in June: 66°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average pressure in June
Grain Valley, MO

Average pressure in June - Grain Valley, MO
  • Average pressure in June: 29.89"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in June
Grain Valley, MO

Average wind speed in June - Grain Valley, MO
  • Average wind speed in June: 7.8mph

The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in June
Grain Valley, MO

Average humidity in June - Grain Valley, MO
  • Average humidity in June: 79%

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in June
Grain Valley, MO

Average rainfall in June - Grain Valley, MO
  • Average rainfall in June: 3.07"

The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in June
Grain Valley, MO

Average rainfall days in June - Grain Valley, MO
  • Average rainfall days in June: 15.4 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in June
Grain Valley, MO

Average snowfall in June - Grain Valley, MO
  • Average snowfall in June: 0"

The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in June
Grain Valley, MO

Average snowfall days in June - Grain Valley, MO
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Grain Valley, MO

Average daylight in June / Average sunshine in June - Grain Valley, MO
  • Average daylight in June: 14h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in June: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in June
Grain Valley, MO

Average sunshine days in June - Grain Valley, MO
  • Average sunshine days in June: 11.4 days

The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in June
Grain Valley, MO

Average UV index in June - Grain Valley, 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, November and December (UV index 2).

Average cloud cover in June
Grain Valley, MO

Average cloud cover in June - Grain Valley, MO
  • Average cloud cover in June: 28

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in June
Grain Valley, MO

Average visibility in June - Grain Valley, 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).

Grain Valley, Missouri, USA

Weather forecast for your location

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