June weather forecast
Brighton, CO

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Trees on partly frozen lake water in Barr Lake State Park in Brighton, Colorado
Trees on partly frozen lake water in Barr Lake State Park in Brighton, Colorado

Weather in June

June brings the arrival of summer, allowing Brighton to soak in the warmth. The mercury climbs to its highest at 84.7°F (29.3°C), marking this month out as the start of the hot season. A slight dip in rainfall from 0.98" (25mm) in May to 0.67" (17mm) in June enhances the sunny disposition. The optimum UV index of 6 introduces the necessity of sun protection during this period. In June, Brighton shines in its full sunny glory.

Temperature

The beginning of June signals a clear escalation in the average high-temperature, soaring from a pleasant 69.4°F (20.8°C) in May to a moderately hot 84.7°F (29.3°C). Brighton measures a considerable dip from daytime highs with an average low-temperature of 56.3°F (13.5°C) during June.

Heat index

In June, the heat index is computed to be 84.2°F (29°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

In Brighton, the average relative humidity in June is 42%.

Rainfall

In June, the rain falls for 9.7 days. Throughout June, 0.67" (17mm) of precipitation is accumulated. In Brighton, during the entire year, the rain falls for 80.6 days and collects up to 5.87" (149mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The month with the longest days is June, with an average of 15h and 0min of daylight.
On the first day of June, sunrise is at 5:32 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:32 pm MDT.

Sunshine

June and July, with an average of 11.8h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 6 during June morphs into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is June?

In Brighton, 84.7°F (29.3°C) is the average high-temperature and 56.3°F (13.5°C) is the average low-temperature during June. In June, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 84.2°F (29°C).

What is the average humidity in June?

The average relative humidity in June is 42%.

How many days does it rain in June?

In June, the rain falls for 9.7 days. Throughout June, 0.67" (17mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall in Brighton.

Does it snow in June?

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

When are the longest days?

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

How many hours of daylight does Brighton have in June?

In June, the average day length is 14h and 58min.

When are sunrise and sunset in June?

On the first day of June, sunrise is at 5:32 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:32 pm MDT.

What is the month with the most sunshine?

June and July, with an average of 11.8h of sunshine, are months with the most sunshine in Brighton.

How long on average sun shines in June in Brighton?

In June, the average sunshine duration is 11.8h.

When is the highest UV index?

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 Brighton, Colorado, the average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents 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
Brighton, CO

Average temperature in June - Brighton, CO
  • Average high temperature in June: 84.7°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (40.8°F).

  • Average low temperature in June: 56.3°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

Average pressure in June
Brighton, CO

Average pressure in June - Brighton, CO
  • Average pressure in June: 29.9"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in June
Brighton, CO

Average wind speed in June - Brighton, CO
  • Average wind speed in June: 6.8mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is December (6mph).

Average humidity in June
Brighton, CO

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

The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is August (40%).

Average rainfall in June
Brighton, CO

Average rainfall in June - Brighton, CO
  • Average rainfall in June: 0.67"

The wettest month (with the highest rainfall) is May (0.98").
The driest month (with the least rainfall) is December (0.12").

Average rainfall days in June
Brighton, CO

Average rainfall days in June - Brighton, CO
  • Average rainfall days in June: 9.7 days

The month with the highest number of rainy days is May (10.8 days).
The month with the least rainy days is December (2.6 days).

Average snowfall in June
Brighton, CO

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

The month with the highest snowfall is February (1.89").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in June
Brighton, CO

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

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in June / Average sunshine in June - Brighton, CO
  • 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: 11h and 5min

The months with the most sunshine are June and July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

Average sunshine days in June
Brighton, CO

Average sunshine days in June - Brighton, CO
  • Average sunshine days in June: 16 days

The month with the most sunshine days is December (25.8 days).
The month with the least sunshine days is July (14.8 days).

Average UV index in June
Brighton, CO

Average UV index in June - Brighton, CO
  • 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
Brighton, CO

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

The month with the most cloud cover is April (Cloud cover 28).
The months with the least cloud cover are June, August and September (Cloud cover 16).

Average visibility in June
Brighton, CO

Average visibility in June - Brighton, CO
  • 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).

Brighton, Colorado, USA

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