June weather forecast
Helena, MO

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Weather in June

June, the first month of the summer in Helena, is a moderately hot month, with an average temperature ranging between max 82.6°F (28.1°C) and min 64.9°F (18.3°C).

Temperature

June comes with an increase, with the average high-temperature moving from a pleasant 72.1°F (22.3°C) in May to a warm 82.6°F (28.1°C). In Helena, the average temperature during the nights of June drops to a comfortable 64.9°F (18.3°C).

Heat index

Throughout June, the heat index is evaluated at a hot 89.6°F (32°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

June is the most humid month, with an average relative humidity of 79%.

Rainfall

In June, in Helena, the rain falls for 16.3 days. Throughout June, 3.78" (96mm) of precipitation is accumulated. In Helena, during the entire year, the rain falls for 132.3 days and collects up to 27.28" (693mm) of precipitation.

Snowfall

In Helena, Missouri, snow does not fall in June through September.

Daylight

June has the longest days of the year, with an average of 15h and 0min of daylight.
On the first day of the month, sunrise is at 5:51 am and sunset at 8:41 pm. On the last day of June, in Helena, Missouri, sunrise is at 5:53 am and sunset at 8:51 pm CDT.

Sunshine

In Helena, the average sunshine in June is 10.1h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 6 during June translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Helena during June?

During June, Helena experiences an average high-temperature of 82.6°F (28.1°C) and a low-temperature of 64.9°F (18.3°C). In June, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 89.6°F (32°C).

What is the most humid month in Helena?

With an average relative humidity of 79%, June is the most humid month.

What is the average humidity in June in Helena?

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

How much does it rain in Helena in June?

In Helena, in June, it is raining for 16.3 days, with typically 3.78" (96mm) of accumulated precipitation.

When it does not snow in Helena?

June through September are months without snowfall in Helena, Missouri.

Does it snow in Helena in June?

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

When are the longest days in Helena?

June has the longest days of the year in Helena, with an average of 15h and 0min of daylight.

How many hours of daylight does Helena have in June?

The average day length in June in Helena is 14h and 58min.

When is the sunrise / sunset in June in Helena?

On the first day of June in Helena, sunrise is at 5:51 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:51 pm CDT.

How long on average sun shines in June in Helena?

In June, the average sunshine duration in Helena is 10.1h.

What is the month with the highest UV index in Helena?

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

What is the UV index reading in June in Helena?

In Helena, Missouri, the average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from 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
Helena, MO

Average temperature in June - Helena, MO
  • Average high temperature in June: 82.6°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in June: 64.9°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in June
Helena, MO

Average pressure in June - Helena, MO
  • Average pressure in June: 29.88"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in June
Helena, MO

Average wind speed in June - Helena, 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 July (6.4mph).

Average humidity in June
Helena, MO

Average humidity in June - Helena, MO
  • Average humidity in June: 79%

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

Average rainfall in June
Helena, MO

Average rainfall in June - Helena, MO
  • Average rainfall in June: 3.78"

The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January and February (0.94").

Average rainfall days in June
Helena, MO

Average rainfall days in June - Helena, MO
  • Average rainfall days in June: 16.3 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in June
Helena, MO

Average snowfall in June - Helena, MO
  • Average snowfall in June: 0"

The month with the highest snowfall is January (3.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in June
Helena, MO

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

The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in June / Average sunshine in June - Helena, MO
  • Average daylight in June: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in June: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in June
Helena, MO

Average sunshine days in June - Helena, MO
  • Average sunshine days in June: 10.8 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in June
Helena, MO

Average UV index in June - Helena, MO
  • Average UV index in June: 6

The months with the highest UV index are 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
Helena, MO

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

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in June
Helena, MO

Average visibility in June - Helena, 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).

Helena, Missouri, USA

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