Photo: Tango7174 · CC BY-SA 4.0More rain and snow fall on Irishtown-Summerside than on 93% of Canadian towns: 1,293 mm a year
In July the day’s top temperature is typically 22.8°C. Expect the most rain and snow in January and the least in April. Summers stay cool: July afternoons here are cooler than in 93% of Canadian towns. The furnace earns its keep from October to May, the months that average under 10°C.
No ECCC station in Irishtown-Summerside has 1991–2020 normals; the page reads Corner Brook, 6.5 km south, instead.
A year in Irishtown-Summerside at a glance
Each month’s typical high and low, in °C.
What stands out about Irishtown-Summerside’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Newfoundland and Labrador beside it.
What a year in Irishtown-Summerside feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
171 frost days and 72 days above 20°C a year
Frost comes from October to May; in January almost every night freezes.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
1,293 mm of precipitation in a typical year
On about 171 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 408 cm in a normal year
From October to May snow is likely; January is the peak, at about 99 cm. 9th snowiest of 32 towns of 2,500+ in Newfoundland and Labrador.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Irishtown-Summerside
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months.
Living with Irishtown-Summerside’s climate
What the normals mean for a garden, a day outside and the depth of winter.
The outdoor season by the averages is Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Expect around 24 days a year when the wind chill sinks below −20.
Summer brings about 13 days when the humidex passes 30.
A typical year is calm by definition; Irishtown-Summerside’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Corner Brook
Behind the 1991–2020 normals for Corner Brook are 2 stations, which ECCC combines into one record.
| Distance from the town | 6.5 km south |
| Station altitude | 152 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −28.2°C |
| Hottest reading, 1991–2020 | 33.3°C |
| Average wind | 10.6 km/h on average, most often from the west |
| Next-nearest location | Deer Lake, 47 km |
How Irishtown-Summerside compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Newfoundland and Labrador.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Irishtown-Summerside’s own would show the same figures). No closer places have figures: these lie 43–74 km from Irishtown-Summerside.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Irishtown-Summerside Corner Brook | 22.8°C | −9.9°C | 1,293 mm |
| Deer Lake 43 km · Deer Lake | 22.9°C about the same | −12.7°C 2.8°C colder | 1,146 mm |
| Stephenville Crossing 64 km · Stephenville | 20.3°C 2.5°C cooler | −9.0°C 0.9°C milder | 1,316 mm |
Irishtown-Summerside weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −2.6°C | −9.9°C | −6.2°C | 140 mm | 99 cm |
| February | −2.5°C | −10.7°C | −6.6°C | 118 mm | 93 cm |
| March | 0.9°C | −8.1°C | −3.6°C | 101 mm | 59 cm |
| April | 6.2°C | −2.6°C | 1.8°C | 79 mm | 29 cm |
| May | 12.6°C | 2.1°C | 7.4°C | 85 mm | 5 cm |
| June | 18.3°C | 7.6°C | 13.0°C | 81 mm | under 1 cm |
| July | 22.8°C | 12.4°C | 17.6°C | 88 mm | 0 cm |
| August | 22.4°C | 12.5°C | 17.5°C | 108 mm | 0 cm |
| September | 17.6°C | 8.3°C | 13.0°C | 112 mm | 0 cm |
| October | 10.9°C | 3.2°C | 7.1°C | 119 mm | 6 cm |
| November | 5.1°C | −1.2°C | 2.0°C | 127 mm | 34 cm |
| December | 0.3°C | −5.7°C | −2.7°C | 136 mm | 84 cm |
| Year | 9.3°C | 0.7°C | 5.0°C | 1,293 mm | 408 cm |
February varies most from one year to the next (2.3°C), August least
Bars run from each month’s record low to its record high since 1991. March spans the most, from −26.2°C (1997) to 19.9°C (1999).
Where Irishtown-Summerside’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Corner Brook, the nearest location with a full year of temperatures.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- Not on this page: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Irishtown-Summerside’s climate
How warm does Irishtown-Summerside get in summer?
The warmest month is July, when afternoons average 22.8°C.
How cold does Irishtown-Summerside get in winter?
At its coldest, in February, the normal low is −10.7°C.
How much rain and snow does Irishtown-Summerside get?
The year adds up to 1,293 mm. January is the peak month (140 mm) and April the low one (79 mm).
How long does snow stay on the ground?
On about 133 days a year the ground keeps at least 1 cm of snow.
Are these figures for Irishtown-Summerside itself?
They are the closest available: the normals for Corner Brook, since Irishtown-Summerside has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Irishtown-Summerside →
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).