The best times to visit River Valley for ideal weather are
June 4th to September 30th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
River Valley Travel Guide
Other River Valley Travel Info
Weather in River Valley
Temperature
Average temperatures in River Valley vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 28th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit River Valley, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 78.8°F (26°C) with temperatures rarely dropping below 56.7°F (13.7°C) at night.
River Valley Temperatures (Fahrenheit)
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River Valley Temperatures (Celsius)
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“Feels-Like” Temperatures
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
River Valley Perceived Temperature (F)
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River Valley Perceived Temperature (C)
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Average River Valley Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
Show Fahrenheit
| Month | Avg. High (°F) | Avg. Mean (°F) | Avg. Low (°F) |
|---|---|---|---|
| Jan | 26 | 17.3 | 6.7 |
| Feb | 25.5 | 16.2 | 5.9 |
| Mar | 36.9 | 26.9 | 16.5 |
| Apr | 50.2 | 39.6 | 29.6 |
| May | 65.5 | 52.6 | 41.4 |
| Jun | 73.3 | 61.6 | 50.7 |
| Jul | 78.1 | 67.1 | 55.8 |
| Aug | 76.1 | 66.3 | 56.1 |
| Sep | 68.9 | 59.1 | 48.5 |
| Oct | 56.3 | 47.9 | 38.5 |
| Nov | 43.8 | 36.9 | 28 |
| Dec | 32.2 | 25.3 | 15.9 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | -3.3 | -8.2 | -14.1 |
| Feb | -3.6 | -8.8 | -14.5 |
| Mar | 2.7 | -2.8 | -8.6 |
| Apr | 10.1 | 4.2 | -1.3 |
| May | 18.6 | 11.4 | 5.2 |
| Jun | 22.9 | 16.4 | 10.4 |
| Jul | 25.6 | 19.5 | 13.2 |
| Aug | 24.5 | 19.1 | 13.4 |
| Sep | 20.5 | 15.1 | 9.2 |
| Oct | 13.5 | 8.8 | 3.6 |
| Nov | 6.6 | 2.7 | -2.2 |
| Dec | 0.1 | -3.7 | -8.9 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in River Valley are February, March, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid February. For example, on the week of February 19th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid October with an average of 2 days of significant precipitation the week of October 15th.
When can you find snow in River Valley? Weather stations report very large amounts of snow likely to be deepest around March, especially close to mid March. The best time to ski (if at all) in River Valley is often around around March 26th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in River Valley.
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Snow on the Ground
The graph below shows the average snow on the ground in River Valley (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 16% | 9 | 1.8 |
| Feb | 10% | 14.4 | 1.1 |
| Mar | 12% | 16.8 | 1.3 |
| Apr | 23% | 7.3 | 3 |
| May | 20% | 0.6 | 2.4 |
| Jun | 22% | 1.8 | 2.9 |
| Jul | 16% | 0 | 2.4 |
| Aug | 19% | 3.1 | 2.8 |
| Sep | 16% | 3 | 2 |
| Oct | 28% | 2.1 | 3.5 |
| Nov | 22% | 1.7 | 2.5 |
| Dec | 21% | 3.7 | 2.4 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 16 | 22.9 | 4.6 |
| Feb | 10 | 36.6 | 2.8 |
| Mar | 12 | 42.7 | 3.3 |
| Apr | 23 | 18.5 | 7.6 |
| May | 20 | 1.5 | 6.1 |
| Jun | 22 | 4.6 | 7.4 |
| Jul | 16 | 0 | 6.1 |
| Aug | 19 | 7.9 | 7.1 |
| Sep | 16 | 7.6 | 5.1 |
| Oct | 28 | 5.3 | 8.9 |
| Nov | 22 | 4.3 | 6.4 |
| Dec | 21 | 9.4 | 6.1 |
Humidity and Wind
River Valley has some very humid months, with other comfortably humid months. The least humid month is April (59% relative humidity), and the most humid month is December (74.7%).
Wind in River Valley is usually moderate. The windiest month is November, followed by December and April. November’s average wind speed of around 9.9 knots (11.4 MPH or 18.3 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early January where average top sustained speeds reach 18.4 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in River Valley.
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Wind
The graph below shows wind speed (max and average) in knots.
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Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
| Month | Avg. Wind | Avg. Wind Feel | Sustained High Wind | High Wind Feel |
| Jan | 9 | Gentle breeze | 17.1 | Strong breeze |
| Feb | 9 | Gentle breeze | 16.6 | Significant breeze |
| Mar | 8.6 | Gentle breeze | 16 | Strong breeze |
| Apr | 9.4 | Gentle breeze | 16.9 | Significant breeze |
| May | 8.4 | Gentle breeze | 15.8 | Strong breeze |
| Jun | 7.2 | Gentle breeze | 13.9 | Significant breeze |
| Jul | 7.5 | Gentle breeze | 14.2 | Strong breeze |
| Aug | 7.6 | Gentle breeze | 14.1 | Significant breeze |
| Sep | 7.9 | Gentle breeze | 14.5 | Strong breeze |
| Oct | 9.3 | Gentle breeze | 16.2 | Significant breeze |
| Nov | 9.9 | Gentle breeze | 17.4 | Strong breeze |
| Dec | 9.9 | Gentle breeze | 17.5 | Strong breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 70.7% |
| Feb | 65.1% |
| Mar | 60.7% |
| Apr | 59% |
| May | 59.2% |
| Jun | 67% |
| Jul | 65.6% |
| Aug | 69.8% |
| Sep | 71.3% |
| Oct | 71.2% |
| Nov | 72.1% |
| Dec | 74.7% |
Is it Safe to Travel to River Valley?
#N/A
The Busiest and Least Crowded Months
The busiest month for tourism in River Valley, ON, Canada is July, followed by August and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit River Valley in December. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall River Valley Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 70°F (21.1°C) and 26.2°F (-3.2°C) with far warmer temperatures in the later months. Rain is somewhat common with 4 to 7 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 5 to 7 days of precipitation per month. June – August is the busiest season for tourism in River Valley, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 73.1°F (22.8°C) and 37.2°F (2.9°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 5 to 9 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.
Winter (December through February)
Weather is far too cold this time of year in River Valley to be enjoyable for warm weather travelers. The average high during this season is between 33.9°F (1.1°C) and 23.2°F (-4.9°C). On average, it rains or snows a fair amount: 3 to 6 times per month. These times of year are fairly slow with tourists.
Best Times to Travel› Canada › River Valley, ON, Canada