June weather forecast
Saint Peters, MO

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Weather in June

June marks a quintessential summer month for Saint Peters, Missouri with its distinctly warmer weather pattern. Extended daylight, increased sunshine hours, and prevalent high temperatures define this month. This month witnesses the highest average low temperature of 66°F (18.9°C). However, rainfall continues alongside these sunny conditions, maintaining a balance. The warm and humid conditions of June advance further into July, marking the height of summer.

Temperature

June's arrival in Saint Peters is marked by an increase in the average high-temperature, moving from a moderately hot 74.7°F (23.7°C) in May to a still warm 84°F (28.9°C). June nights cool down to an average low-temperature of 66°F (18.9°C).

Heat index

The heat index for June is evaluated at a tropical 93.2°F (34°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Note that heat index values are valued for light wind and location in the shade. 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 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

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

Rainfall

In Saint Peters, during June, the rain falls for 14.3 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Saint Peters, during the entire year, the rain falls for 133.4 days and collects up to 20.98" (533mm) of precipitation.

Snowfall

April through October are months without snowfall in Saint Peters, Missouri.

Daylight

June has the longest days of the year, 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 8:22 pm. On the last day of June, sunrise is at 5:41 am and sunset at 8:31 pm CDT.

Sunshine

The months with the most sunshine in Saint Peters, Missouri, are June and July, with an average of 10.5h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during June translates into the following directions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

How hot is it in Saint Peters in June?

The average high-temperature, in June, in Saint Peters, is 84°F (28.9°C), while the average low-temperature is 66°F (18.9°C). In June, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 93.2°F (34°C).

What is the average humidity in June in Saint Peters?

The average relative humidity in June is 77%.

How much does it rain in Saint Peters in June?

In Saint Peters, in June, it is raining for 14.3 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Saint Peters?

April through October are months without snowfall in Saint Peters, Missouri.

When are the longest days in Saint Peters?

The month with the longest days is June, with an average of 14h and 48min of daylight.

How many hours of daylight does Saint Peters have in June?

The average day length in June in Saint Peters, Missouri, is 14h and 50min.

When are sunrise and sunset in June in Saint Peters?

In June, on the first day of the month, sunrise is at 5:38 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:31 pm CDT.

What are the months with the most sunshine in Saint Peters?

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

How many hours of sunshine does Saint Peters have in June?

In Saint Peters, the average sunshine duration in June is 10.5h.

What are the months with the highest UV index in Saint Peters?

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

What is the UV index intensity in June in Saint Peters?

In June, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Saint Peters, MO

Average temperature in June - Saint Peters, MO
  • Average high temperature in June: 84°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°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 (23.9°F).

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Average pressure in June
Saint Peters, MO

Average pressure in June - Saint Peters, 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
Saint Peters, MO

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

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

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Average humidity in June
Saint Peters, MO

Average humidity in June - Saint Peters, 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%).

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Average rainfall in June
Saint Peters, MO

Average rainfall in June - Saint Peters, MO
  • Average rainfall in June: 2.24"

The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is February (1.06").

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Average rainfall days in June
Saint Peters, MO

Average rainfall days in June - Saint Peters, MO
  • Average rainfall days in June: 14.3 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (6.7 days).

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Average snowfall in June
Saint Peters, MO

Average snowfall in June - Saint Peters, MO
  • Average snowfall in June: 0"

The month with the highest snowfall is February (1.65").
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
Saint Peters, MO

Average snowfall days in June - Saint Peters, MO
  • Average snowfall days in June: 0 days

The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in June /
Average sunshine in June
Saint Peters, MO

Average daylight in June / Average sunshine in June - Saint Peters, 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 42min).

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Average sunshine days in June
Saint Peters, MO

Average sunshine days in June - Saint Peters, MO
  • Average sunshine days in June: 12.9 days

The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is July (12.7 days).

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Average UV index in June
Saint Peters, MO

Average UV index in June - Saint Peters, 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).

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Average cloud cover in June
Saint Peters, MO

Average cloud cover in June - Saint Peters, 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
Saint Peters, MO

Average visibility in June - Saint Peters, 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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Saint Peters, Missouri, USA

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