June weather forecast
Ontario, OR

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Weather in June

June, the first month of the summer in Ontario, is a warm month, with an average temperature fluctuating between 54.1°F (12.3°C) and 81°F (27.2°C).

Temperature

With the onset of June, Ontario observes a minor temperature ascent, with the average high-temperature adjusting from May's pleasant 72.1°F (22.3°C) to a warm 81°F (27.2°C). Ontario's nighttime average of 54.1°F (12.3°C) during June reflects a substantial decrease from the daytime temperature.

Heat index

June's mean heat index is computed to be 80.6°F (27°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

The average relative humidity in June is 42%.

Rainfall

In Ontario, Oregon, during June, the rain falls for 5.8 days and regularly aggregates up to 0.51" (13mm) of precipitation. In Ontario, during the entire year, the rain falls for 84.9 days and collects up to 9.29" (236mm) of precipitation.

Snowfall

In Ontario, snow does not fall in May through October.

Daylight

The month with the longest days is June, with an average of 15h and 24min of daylight.
On the first day of June, sunrise is at 6:07 am and sunset at 9:24 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 9:34 pm MDT.

Sunshine

The average sunshine in June is 11.6h.

UV index

In Ontario, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: During June, 6 as the daily maximum UV index converts into the following advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

What is the temperature in June?

Ontario in June has an average high-temperature of 81°F (27.2°C) and an average low-temperature of 54.1°F (12.3°C). In June, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 80.6°F (27°C).

What is the average humidity in June?

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

How many days does it rain in June?

In Ontario, in June, it is raining for 5.8 days, with typically 0.51" (13mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 15h and 24min of daylight.

What is the average length of the day in June?

In June, the average day length is 15h and 26min.

When are sunrise and sunset in June?

In June, on the first day of the month, sunrise is at 6:07 am and sunset at 9:24 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 9:34 pm MDT.

How long on average sun shines in June in Ontario?

In June, the average sunshine duration in Ontario is 11.6h.

What is the UV index reading in June?

In Ontario, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Ontario, OR

Average temperature in June - Ontario, OR
  • Average high temperature in June: 81°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The months with the lowest average high temperature are January and December (36.1°F).

  • Average low temperature in June: 54.1°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (23°F).

Average pressure in June
Ontario, OR

Average pressure in June - Ontario, OR
  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

Average wind speed in June
Ontario, OR

Average wind speed in June - Ontario, OR
  • Average wind speed in June: 6.1mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).

Average humidity in June
Ontario, OR

Average humidity in June - Ontario, OR
  • Average humidity in June: 42%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (29%).

Average rainfall in June
Ontario, OR

Average rainfall in June - Ontario, OR
  • Average rainfall in June: 0.51"

The wettest month (with the highest rainfall) is December (1.57").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in June
Ontario, OR

Average rainfall days in June - Ontario, OR
  • Average rainfall days in June: 5.8 days

The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).

Average snowfall in June
Ontario, OR

Average snowfall in June - Ontario, OR
  • Average snowfall in June: 0"

The month with the highest snowfall is December (5.35").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Ontario, OR

Average snowfall days in June - Ontario, OR
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is December (7.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in June /
Average sunshine in June
Ontario, OR

Average daylight in June / Average sunshine in June - Ontario, OR
  • Average daylight in June: 15h and 2min

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

  • Average sunshine in June: 11h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in June
Ontario, OR

Average sunshine days in June - Ontario, OR
  • Average sunshine days in June: 22.9 days

The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is February (15.2 days).

Average UV index in June
Ontario, OR

Average UV index in June - Ontario, OR
  • Average UV index in June: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in June
Ontario, OR

Average cloud cover in June - Ontario, OR
  • Average cloud cover in June: 18

The months with the most cloud cover are January and December (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 8).

Average visibility in June
Ontario, OR

Average visibility in June - Ontario, OR
  • Average visibility in June: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

Ontario, Oregon, USA

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