Boise
Idaho, USA
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Boise, ID

The golden fall season in Boise, Idaho, with the tall city buildings
The golden fall season in Boise, Idaho, with the tall city buildings
The first month of the summer, June, is a warm month in Boise, Idaho, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 53.8°F (12.1°C).

Temperature

In June, the average high-temperature increases, from a pleasant 71.6°F (22°C) in May, to a moderately hot 81.3°F (27.4°C). In June, the average low-temperature is 53.8°F (12.1°C).

Humidity

The average relative humidity in Boise is 44.7%.

Rainfall

In Boise, in June, it is raining for 5 days, with typically 0.7" (17.5mm) of accumulated precipitation. In Boise, during the entire year, the rain falls for 87.6 days and collects up to 11.7" (297.9mm) of precipitation.

Snowfall

Throughout the year, in Boise, 19.2" (487.5mm) of snow is accumulated.

Daylight

The month with the longest days in Boise is June, with an average of 15.4h of daylight.

Sunshine

In June, the average sunshine in Boise is 11.7h.

UV index

Months with the highest UV index are June and July, with an average maximum UV index of 9. A UV Index reading of 8 to 10 represents a very high threat to health from unprotected exposure to the Sun's UV rays for the average person.
In June, the average maximum UV index of 9 translate into the following recommendations:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used.

What is the temperature in June in Boise?

The average high-temperature, in June, is 81.3°F (27.4°C), while the average low-temperature is 53.8°F (12.1°C).

What is the average humidity in June in Boise?

In Boise, the average relative humidity in June is 44.7%.

How many days does it rain in June in Boise?

In Boise, during June, the rain falls for 5 days and regularly aggregates up to 0.7" (17.5mm) of precipitation.

When are the longest days in Boise?

June has the longest days of the year, with an average of 15.4h of daylight.

How many hours of daylight does Boise have in June?

The average length of the day in June is 15.4h.

How long on average sun shines in June in Boise?

In June, the average sunshine is 11.7h.

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

Months with the highest UV index in Boise are June and July, with an average maximum UV index of 9.

What is the UV index reading in June in Boise?

In Boise, the average daily maximum UV index in June is 9. A UV Index value of 8 to 10 symbolizes a very high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in June - Boise, ID
  • Average high temperature in June: 81.3°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (37.5°F).

  • Average low temperature in June: 53.7°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (24°F).

Average humidity in June - Boise, ID
  • Average humidity in June: 44.7%

The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is July (36.1%).

Average rainfall in June - Boise, ID
  • Average rainfall in June: 0.7"

The wettest month (with the highest rainfall) is December (1.6").
The driest month (with the lowest rainfall) is August (0.2").

Average rainfall days in June - Boise, ID
  • Average rainfall days in June: 5 days

The month with the highest number of rainy days is December (11.8 days).
The month with the lowest number of rainy days is August (2.4 days).

Average snowfall in June - Boise, ID
  • Average snowfall in June: 0"

The month with the highest snowfall is December (7").
Months with the lowest snowfall are May, June, July, August and September (0").

Average snowfall days in June - Boise, ID
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is December (6 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in June / Average sunshine in June - Boise, ID
  • Average daylight in June: 15.4h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).

  • Average sunshine in June: 11.7h

The month with most sunshine is July (Average sunshine: 12.9h).
The month with least sunshine is December (Average sunshine: 3.4h).

Average UV index in June - Boise, ID
  • Average UV index in June: 9

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).