June weather forecast
Boulder, CO

The old building of the University of Colorado in Boulder, Colorado
The old building of the University of Colorado in Boulder, Colorado

Weather in June

June, the first month of the summer in Boulder, is a warm month, with an average temperature varying between 50°F (10°C) and 76.6°F (24.8°C).

Temperature

In June, the average high-temperature increases considerably from an enjoyable 61°F (16.1°C) in May to a moderately hot 76.6°F (24.8°C). The average low-temperature, in June, is 50°F (10°C).

Humidity

The months with the lowest humidity are June, August and September, with an average relative humidity of 45%.

Rainfall

In Boulder, Colorado, in June, it is raining for 13.4 days, with typically 1.5" (38mm) of accumulated precipitation. In Boulder, Colorado, during the entire year, the rain falls for 117.3 days and collects up to 14.17" (360mm) of precipitation.

Snowfall

In Boulder, snow does not fall through September.

Daylight

June has the longest days of the year, with an average of 14h and 58min of daylight.
On the first day of the month, sunrise is at 5:34 am and sunset at 8:23 pm. On the last day of June, in Boulder, sunrise is at 5:35 am and sunset at 8:34 pm MDT.

Sunshine

June and July, with an average of 11.7h of sunshine, are months with the most sunshine.

UV index

June through August, with an average maximum UV index of 5, are months with the highest UV index in Boulder. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in June 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 the 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.
[Resources]

FAQ

What are the least humid months in Boulder?

June, August and September, with an average relative humidity of 45%, are the least humid months.

What is the average humidity in June in Boulder?

In June, the average relative humidity in Boulder is 45%.

How much does it rain in Boulder in June?

In Boulder, Colorado, during June, the rain falls for 13.4 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Boulder?

In Boulder, snow does not fall in June through September.

Does it snow in Boulder in June?

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

When are the longest days in Boulder?

With an average of 14h and 58min of daylight, June has the longest days of the year in Boulder, Colorado.

How many hours of daylight does Boulder have in June?

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

When are sunrise and sunset in June in Boulder?

On the first day of June, sunrise is at 5:34 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:34 pm MDT.

What is the month with the most sunshine in Boulder?

The months with the most sunshine in Boulder are June and July, with an average of 11.7h of sunshine.

How many hours of sunshine does Boulder have in June?

In June, the average sunshine duration in Boulder, Colorado, is 11.7h.

What are the months with the highest UV index in Boulder?

The months with the highest UV index in Boulder, Colorado, are June through August, with an average maximum UV index of 5.

What is the UV index reading in June in Boulder?

In June, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Boulder, CO

Average temperature in June - Boulder, CO
  • Average high temperature in June: 76.6°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is December (35.2°F).

  • Average low temperature in June: 50°F

The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is February (18°F).

[Resources]

Average pressure in June
Boulder, CO

Average pressure in June - Boulder, CO
  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.92"Hg).

[Resources]

Average wind speed in June
Boulder, CO

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

The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest months (with the lowest average wind speed) are May, July, August and September (5.7mph).

[Resources]

Average humidity in June
Boulder, CO

Average humidity in June - Boulder, CO
  • Average humidity in June: 45%

The month with the highest relative humidity is February (70%).
The months with the lowest relative humidity are June, August and September (45%).

[Resources]

Average rainfall in June
Boulder, CO

Average rainfall in June - Boulder, CO
  • Average rainfall in June: 1.5"

The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is January (0.39").

[Resources]

Average rainfall days in June
Boulder, CO

Average rainfall days in June - Boulder, CO
  • Average rainfall days in June: 13.4 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (3.3 days).

[Resources]

Average snowfall in June
Boulder, CO

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

The month with the highest snowfall is April (7.76").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in June
Boulder, CO

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

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).

[Resources]

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

Average daylight in June / Average sunshine in June - Boulder, CO
  • Average daylight in June: 14h and 58min

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 23min).

  • Average sunshine in June: 11h and 42min

The months with the most sunshine are June and July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

[Resources]

Average sunshine days in June
Boulder, CO

Average sunshine days in June - Boulder, CO
  • Average sunshine days in June: 14.3 days

The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is July (9.9 days).

[Resources]

Average UV index in June
Boulder, CO

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in June
Boulder, CO

Average cloud cover in June - Boulder, CO
  • Average cloud cover in June: 17

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

[Resources]

Average visibility in June
Boulder, CO

Average visibility in June - Boulder, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location