Ontario, Oregon, United States of America: What to pack, what to wear, and when to go [2021]

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Traveling to Ontario, Oregon, United States of America? If you're planning to go to Ontario, this article contains some important information about when to go, what to wear, and what to pack.

Contents


When to go to Ontario, Oregon, United States of America

Based on the climate and weather in Ontario, the best time to go is August. See below for details.

Important esssentials for Ontario, Oregon, United States of America

Here are some general tips on what to wear in Ontario, as well as several items to remember to pack when traveling there.

What to wear/what to pack for Ontario, Oregon, United States of America by month

January

January in Ontario is freezing. The average overnight temperatures in the area are in the high 10s F (single digits below 0 C), with a few days below 0 F (10+ below zero C).

What to wear/what to pack:

February

February in Ontario is cold. Temperatures average in the low 40s F (single digits C) during the day.

What to wear/what to pack:

March

March in Ontario is pretty cool. The average overnight temperatures in the area are in the low 30s F (single digits below 0 C).

What to wear/what to pack:

April

April in Ontario is mild. The average overnight temperatures in the area are in the 30s F (single digits C).

What to wear/what to pack:

May

If you vacation in Ontario during May, you will probably notice that it is warm and dry with little rain.

Temperatures tend to hover around the low 70s F (low 20s C) during the day, while at night they can dip into the low 40s F (single digits C).

What to wear/what to pack:

June

If you vacation in Ontario during June, you might notice that it is extremely warm and very dry with almost no rain.

Temperatures tend to hover around the low 80s F (high 20s C) during the day, while at night they can dip into the low 50s F (single digits C).

What to wear/what to pack:

July

If you vacation in Ontario during July, you will probably notice that it can be sizzling and very dry with almost no rain.

Temperatures tend to hover around the 90s F (mid 30s C) during the day, while at night they can dip into the high 50s F (mid 10s C).

What to wear/what to pack:

August

If you vacation in Ontario during August, you will probably see that it is constantly hot and very dry with almost no rain.

Temperatures tend to hover around the low 80s F (low 30s C) during the day, while at night they can dip into the 50s F (low 10s C).

What to wear/what to pack:

September

If you go to Ontario in September, you will notice that it is pretty consistently hot and very dry with almost no rain. Daytime temperatures are in the low 80s F (high 20s C).

What to wear/what to pack:

October

If you are traveling to Ontario in October, you will notice that it is balmy. Daytime temperatures are in the 60s F (high 10s C).

What to wear/what to pack:

November

November in Ontario is brisk. The average overnight temperatures in the area are in the high 20s F (single digits below 0 C).

What to wear/what to pack:

December

December here can be very chilly. Temperatures average in the high 30s F (single digits C) during the day.

What to wear/what to pack:

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