June weather forecast and climate
Louisville, CO

Weather in June

June, the first month of the summer, in Louisville, is a warm month, with average temperature fluctuating between 81.3°F (27.4°C) and 53.8°F (12.1°C).

Temperature

In June, the average high-temperature soars, from an enjoyable 66°F (18.9°C) in May, to a moderately hot 81.3°F (27.4°C). In Louisville, the average low-temperature is 53.8°F (12.1°C).

Heat index

The average heat index is estimated at 81.1°F (27.3°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, pregnancy, metabolic differences, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In June, the average relative humidity is 42%.

Rainfall

In Louisville, during 9.9 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Louisville, during the entire year, the rain falls for 96.7 days and collects up to 5.63" (143mm) of precipitation.

Snowfall

In Louisville, Colorado, snow does not fall through September.

Daylight

June has the longest days of the year in Louisville, Colorado, with an average of 15h of daylight.

Sunshine

Months with the most sunshine in Louisville are June through August, with an average of 11.8h of sunshine.

UV index

In June, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in June in Louisville?

In Louisville, in June, the average high-temperature is 81.3°F (27.4°C), and the average low-temperature is 53.8°F (12.1°C). In June, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that factores the actual air temperature with the relative humidity, is calculated to 81.1°F (27.3°C).

What is the average humidity in June in Louisville?

The average relative humidity in June is 42%.

How many days does it rain in June in Louisville?

In June, the rain falls for 9.9 days. Throughout June, 0.63" (16mm) of precipitation is accumulated.

Does it snow in Louisville in June?

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

When it does not snow in Louisville?

In Louisville snow does not fall in June through September.

When are the longest days in Louisville?

With an average of 15h of daylight, June has the longest days of the year.

What is the average length of the day in June in Louisville?

In June, the average length of the day in Louisville, Colorado, is 15h.

What is the month with the most sunshine in Louisville?

June through August, with an average of 11.8h of sunshine, are months with the most sunshine in Louisville.

How long on average sun shines in June in Louisville?

In Louisville, Colorado, the average sunshine in June is 11.8h.

What is the UV index reading in June in Louisville?

In Louisville, the average daily maximum UV index in June is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in June
Louisville, CO

Average temperature in June - Louisville, CO
  • Average high temperature in June: 81.3°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).

  • Average low temperature in June: 53.8°F

The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).

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Average pressure in June
Louisville, CO

Average pressure in June - Louisville, CO
  • Average pressure in June: 29.91"

The month with the highest atmospheric pressure is January (30.14").
Months with the lowest atmospheric pressure are April and June (29.91").

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Average wind speed in June
Louisville, CO

Average wind speed in June - Louisville, CO
  • Average wind speed in June: 6mph

The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).

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Average humidity in June
Louisville, CO

Average humidity in June - Louisville, CO
  • Average humidity in June: 42%

The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in June
Louisville, CO

Average rainfall in June - Louisville, CO
  • Average rainfall in June: 0.63"

The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").

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Average rainfall days in June
Louisville, CO

Average rainfall days in June - Louisville, CO
  • Average rainfall days in June: 9.9 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).

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Average snowfall in June
Louisville, CO

Average snowfall in June - Louisville, CO
  • Average snowfall in June: 0"

The month with the highest snowfall is February (2.68").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in June
Louisville, CO

Average snowfall days in June - Louisville, CO
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (8.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in June /
Average sunshine in June
Louisville, CO

Average daylight in June / Average sunshine in June - Louisville, CO
  • Average daylight in June: 15h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in June: 11.8h

Months with the most sunshine are June, July and August (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.7h).

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Average sunshine days in June
Louisville, CO

Average sunshine days in June - Louisville, CO
  • Average sunshine days in June: 15.6 days

The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).

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Average UV index in June
Louisville, CO

Average UV index in June - Louisville, CO
  • Average UV index in June: 5

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in June
Louisville, CO

Average cloud cover in June - Louisville, CO
  • Average cloud cover in June: 16

Months with the most cloud cover are April and May (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).

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Average visibility in June
Louisville, CO

Average visibility in June - Louisville, CO
  • Average visibility in June: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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