Surrey climate — normals and trends
Surrey (Canada) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 10.2 °C and it receives 1,683 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 (17.9 °C on average) and the coldest is January (3.1 °C). Rainfall peaks in November.
Surrey averages 37 frost days, 4 hot days (≥ 30 °C) and 161 rainy days per year.
Surrey has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The number of frost days there went from about 56 to 18 per year over the period.
The hottest day of the period reached 40.9 °C (on 28 June 2021) and the coldest -20.6 °C (on 25 January 1950).
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
SurreyBritish Columbia
- coords
- 49.11°, -122.83°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.2°C
Average daily high
13.9°C
Average daily low
6.7°C
Annual rainfall
1,683mm
Sunshine / day
8.7h
Mean relative humidity
78%
Average peak wind
13.4km/h
Seasonal range
14.8°C
Frost days (< 0 °C)
37 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
161 d/yr
Annual snowfall
47.2 cm
Average feels-like high
12.3 °C
Average feels-like low
4.4 °C
Average peak gust
28.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
40.9 °C
28 June 2021
Coldest day
-20.6 °C
25 January 1950
Wettest day
95 mm
3 November 1955
Windiest day
50.3 km/h
15 January 1951
Strongest gust
94.3 km/h
13 October 1962
Hottest feels-like
43.9 °C
28 June 2021
Coldest feels-like
-27.1 °C
13 January 1950
Snowiest day
26.7 cm
29 December 1996
Sunniest day
15.8 h
6 June 1940
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 | 6.6 °C | +0.9 °C | 72 mm | -148 mm |
| Feb | 6.5 °C | -1.3 °C | 143 mm | -27 mm |
| Mar | 10.9 °C | +0.7 °C | 245 mm | +70 mm |
| Apr | 14.9 °C | +1.6 °C | 101 mm | -28 mm |
| May | 17.1 °C | +0.2 °C | 79 mm | -10 mm |
| Jun | 20.0 °C | +0.6 °C | 24 mm | -41 mm |
| Jul | 23.5 °C | +1.0 °C | 8 mm | -29 mm |
| Aug | 23.5 °C | +1.0 °C | 61 mm | +12 mm |
| Sep | 20.7 °C | +1.2 °C | 54 mm | -36 mm |
| Oct | 13.9 °C | -0.1 °C | 179 mm | -10 mm |
| Nov | 10.5 °C | +1.7 °C | 211 mm | -32 mm |
| Dec | 8.4 °C | +2.5 °C | 330 mm | +100 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 Surrey?
Surrey has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 10.2 °C and it receives 1,683 mm of precipitation per year.
What is the hottest day ever recorded in Surrey?
The hottest day measured in Surrey between 1940 and 2025 was 28 June 2021, reaching 40.9 °C.
What is the coldest day in Surrey?
The coldest day measured in Surrey between 1940 and 2025 was 25 January 1950, at -20.6 °C.
Does it snow in Surrey?
Yes. Surrey gets on average 47.2 cm of snow per year and has around 37 frost days.
Has the climate of Surrey warmed?
Yes: Surrey warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Surrey?
The wettest day measured in Surrey between 1940 and 2025 was 3 November 1955, with 95 mm of rain in 24 hours.
What was the windiest day in Surrey?
The windiest day measured in Surrey between 1940 and 2025 was 15 January 1951, with winds reaching 50.3 km/h.
What is the warmest month in Surrey?
The warmest month in Surrey is July (17.9 °C on average); the coldest is January (3.1 °C).
How much does it rain in Surrey?
Surrey receives on average 1,683 mm of precipitation per year, spread over about 161 rainy days.
Is it sunny in Surrey?
Surrey gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Surrey?
The heaviest 24-hour snowfall measured in Surrey between 1940 and 2025 was 29 December 1996, with 26.7 cm.
Are there tropical nights in Surrey?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Surrey.
What was the most extreme apparent temperature in Surrey?
In Surrey, between 1940 and 2025, the highest apparent temperature reached 43.9 °C on 28 June 2021, and the lowest was -27.1 °C on 13 January 1950.
Compare Surrey with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Surrey