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Shannon weather

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Env. CanadaGEM model
0°
Clear
Feels -4° · Wind 4 km/h · Humidity 73%
EuropeanECMWF
4°
Clear
Feels 1° · Wind 7 km/h · Humidity 66%
AmericanNOAA GFS
0°
Clear
Feels -3° · Wind 1 km/h · Humidity 80%

Latest for Shannon: Env. Canada (GEM model): 0° Clear · European (ECMWF): 4° Clear · American (NOAA GFS): 0° Clear.

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Shannon weather in numbers

from 30 years of measured normals

Shannon swings 40°C across the year, from 23°C highs in July to -17°C lows in January, and July is usually the wettest month in a year that brings about 1448 mm of precipitation.

Warmest month
July
23°C average high
Coldest month
January
-17°C average low
Wettest month
July
1448 mm a year
Below freezing
6 months
January, February, March, April, November and December
Comfortable
4 months
May, June, August and September
Residents
5,086
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The weather map: all three models at once

Env. Canada, European, American side by side around Shannon and nearby towns.Live rain radar →
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Shannon hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Shannon 10-day forecast, out to 14 days

where the models agree, and where they split

Shannon, Quebec is at its warmest in Jul (average highs near 23°C) and coldest in Jan (lows around -17°C), with roughly 1448 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Shannon right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in Canada before you trust any single number.

Shannon climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
-8°
-17°
Feb
-5°
-16°
Mar
-1°
-10°
Apr
8°
-3°
May
17°
5°
Jun
21°
11°
Jul
23°
14°
Aug
22°
14°
Sep
19°
9°
Oct
11°
3°
Nov
3°
-4°
Dec
-4°
-12°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Shannon has changed since 1995

Shannon sits in the same roughly 50 km square of NASA's reanalysis as Quebec. That square ran 0.8°C warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Quebec page.

Which forecast is most accurate in Shannon?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
92
/100rank #1
92±0.4°C96±2.1 km/h8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
86
/100rank #2
87±0.7°C92±4.1 km/h8290% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
American logo
American
81
/100rank #3
88±0.7°C94±3.2 km/h6581% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1320 cities. Lower error means a higher score. See which forecast model is most accurate in Canada, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in Canada? Give each 1 to 5 stars.

Env. CanadaGEM model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Common questions

What's the weather in Shannon today?
On this page we show what Env. Canada, European, American each forecast for Shannon today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Shannon today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Shannon and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Shannon?
Over the last 30 days, the European model has been the most accurate for Shannon (CheckWeather Score 92/100), ahead of the Env. Canada at 86. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Shannon?
July is typically the warmest month in Shannon, with average highs around 23°C.
How cold does Shannon get?
The coldest month in Shannon is January, when overnight lows average about -17°C.
How much rain does Shannon get?
Shannon sees roughly 1448 mm of precipitation a year, with July usually the wettest month.

Nearby

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