Miramichi climate — normals and trends
Miramichi (Canada) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 5.1 °C and it receives 1,062 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (19.1 °C on average) and the coldest is January (-9.8 °C). Rainfall peaks in November.
Miramichi averages 161 frost days, 4 hot days (≥ 30 °C) and 133 rainy days per year.
Miramichi has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 167 to 155 per year over the period.
The hottest day of the period reached 36.9 °C (on 12 August 2025) and the coldest -37.6 °C (on 16 January 2009).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
MiramichiNew Brunswick
- coords
- 47.03°, -65.50°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.1°C
Average daily high
9.6°C
Average daily low
0.7°C
Annual rainfall
1,062mm
Sunshine / day
8.1h
Mean relative humidity
74%
Average peak wind
17.5km/h
Seasonal range
28.9°C
Frost days (< 0 °C)
161 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
230.1 cm
Average feels-like high
6.9 °C
Average feels-like low
-2.8 °C
Average peak gust
38.8 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
12.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.27 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.9 °C
12 August 2025
Coldest day
-37.6 °C
16 January 2009
Wettest day
101 mm
30 September 2015
Windiest day
45.3 km/h
2 January 1945
Strongest gust
115.2 km/h
24 December 2022
Hottest feels-like
38.9 °C
2 August 1975
Coldest feels-like
-43.4 °C
16 January 2009
Snowiest day
47.8 cm
4 April 1975
Sunniest day
15.1 h
14 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -4.0 °C | +1.2 °C | 55 mm | -31 mm |
| Feb | -3.4 °C | +0.3 °C | 83 mm | +4 mm |
| Mar | 4.0 °C | +2.7 °C | 130 mm | +38 mm |
| Apr | 8.7 °C | +1.2 °C | 118 mm | +33 mm |
| May | 15.7 °C | +0.7 °C | 117 mm | +30 mm |
| Jun | 22.6 °C | +2.1 °C | 57 mm | -31 mm |
| Jul | 26.2 °C | +2.2 °C | 64 mm | -24 mm |
| Aug | 26.0 °C | +2.8 °C | 36 mm | -48 mm |
| Sep | 21.7 °C | +3.1 °C | 71 mm | -14 mm |
| Oct | 14.8 °C | +2.8 °C | 76 mm | -15 mm |
| Nov | 5.8 °C | +1.0 °C | 75 mm | -24 mm |
| Dec | -3.0 °C | -0.8 °C | 72 mm | -25 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Miramichi?
Miramichi has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 5.1 °C and it receives 1,062 mm of precipitation per year.
What is the hottest day ever recorded in Miramichi?
The hottest day measured in Miramichi between 1940 and 2025 was 12 August 2025, reaching 36.9 °C.
What is the coldest day in Miramichi?
The coldest day measured in Miramichi between 1940 and 2025 was 16 January 2009, at -37.6 °C.
Does it snow in Miramichi?
Yes. Miramichi gets on average 230.1 cm of snow per year and has around 161 frost days.
Has the climate of Miramichi warmed?
Yes: Miramichi warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Miramichi?
The wettest day measured in Miramichi between 1940 and 2025 was 30 September 2015, with 101 mm of rain in 24 hours.
What was the windiest day in Miramichi?
The windiest day measured in Miramichi between 1940 and 2025 was 2 January 1945, with winds reaching 45.3 km/h.
What is the warmest month in Miramichi?
The warmest month in Miramichi is July (19.1 °C on average); the coldest is January (-9.8 °C).
How much does it rain in Miramichi?
Miramichi receives on average 1,062 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Miramichi?
Miramichi gets on average 8.1 hours of sunshine per day, roughly 2,957 hours per year over 1940-2025.
What is the biggest single-day snowfall in Miramichi?
The heaviest 24-hour snowfall measured in Miramichi between 1940 and 2025 was 4 April 1975, with 47.8 cm.
Are there tropical nights in Miramichi?
Yes: Miramichi has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Miramichi?
In Miramichi, between 1940 and 2025, the highest apparent temperature reached 38.9 °C on 2 August 1975, and the lowest was -43.4 °C on 16 January 2009.
Compare Miramichi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Miramichi