Petergof climate — normals and trends
Petergof (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.4 °C and it receives 676 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 (16.1 °C on average) and the coldest is January (-6.2 °C). Rainfall peaks in August.
Petergof averages 141 frost days, 0 hot days (≥ 30 °C) and 140 rainy days per year.
Petergof has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 157 to 125 per year over the period.
The hottest day of the period reached 31.1 °C (on 23 June 2021) and the coldest -34.6 °C (on 12 January 1987).
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
PetergofSt.-Petersburg
- coords
- 59.88°, 29.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.4°C
Average daily high
6.5°C
Average daily low
2.4°C
Annual rainfall
676mm
Sunshine / day
7.1h
Mean relative humidity
82%
Average peak wind
23.4km/h
Seasonal range
22.3°C
Frost days (< 0 °C)
141 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
129.5 cm
Average feels-like high
2.8 °C
Average feels-like low
-1.9 °C
Average peak gust
34.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
9.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.23 · 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
31.1 °C
23 June 2021
Coldest day
-34.6 °C
12 January 1987
Wettest day
45 mm
2 August 2021
Windiest day
60.8 km/h
21 January 1957
Strongest gust
98.6 km/h
29 September 1975
Hottest feels-like
33.2 °C
23 June 2021
Coldest feels-like
-41.6 °C
12 January 1987
Snowiest day
20.0 cm
23 March 1971
Sunniest day
18.0 h
16 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 0.5 °C | +4.9 °C | 98 mm | +53 mm |
| Feb | -3.6 °C | +0.8 °C | 18 mm | -18 mm |
| Mar | 3.4 °C | +4.1 °C | 46 mm | +9 mm |
| Apr | 6.9 °C | +1.9 °C | 59 mm | +20 mm |
| May | 12.1 °C | +1.2 °C | 93 mm | +48 mm |
| Jun | 16.7 °C | +1.3 °C | 124 mm | +68 mm |
| Jul | 23.3 °C | +4.6 °C | 49 mm | -15 mm |
| Aug | 18.9 °C | +1.2 °C | 103 mm | +24 mm |
| Sep | 16.7 °C | +3.7 °C | 38 mm | -39 mm |
| Oct | 8.3 °C | +1.5 °C | 53 mm | -23 mm |
| Nov | 4.5 °C | +2.6 °C | 89 mm | +20 mm |
| Dec | 1.2 °C | +2.9 °C | 63 mm | +8 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 Petergof?
Petergof has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.4 °C and it receives 676 mm of precipitation per year.
What is the hottest day ever recorded in Petergof?
The hottest day measured in Petergof between 1940 and 2025 was 23 June 2021, reaching 31.1 °C.
What is the coldest day in Petergof?
The coldest day measured in Petergof between 1940 and 2025 was 12 January 1987, at -34.6 °C.
Does it snow in Petergof?
Yes. Petergof gets on average 129.5 cm of snow per year and has around 141 frost days.
Has the climate of Petergof warmed?
Yes: Petergof warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Petergof?
The wettest day measured in Petergof between 1940 and 2025 was 2 August 2021, with 45 mm of rain in 24 hours.
What was the windiest day in Petergof?
The windiest day measured in Petergof between 1940 and 2025 was 21 January 1957, with winds reaching 60.8 km/h.
What is the warmest month in Petergof?
The warmest month in Petergof is July (16.1 °C on average); the coldest is January (-6.2 °C).
How much does it rain in Petergof?
Petergof receives on average 676 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Petergof?
Petergof gets on average 7.1 hours of sunshine per day, roughly 2,592 hours per year over 1940-2025.
What is the biggest single-day snowfall in Petergof?
The heaviest 24-hour snowfall measured in Petergof between 1940 and 2025 was 23 March 1971, with 20.0 cm.
Are there tropical nights in Petergof?
Yes: Petergof has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Petergof?
In Petergof, between 1940 and 2025, the highest apparent temperature reached 33.2 °C on 23 June 2021, and the lowest was -41.6 °C on 12 January 1987.
Compare Petergof with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Petergof