| Climate data for Saint Petersburg (1991–2020, extremes 1743–present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 8.7 (47.7) |
10.2 (50.4) |
15.3 (59.5) |
25.3 (77.5) |
33.0 (91.4) |
35.9 (96.6) |
35.3 (95.5) |
37.1 (98.8) |
30.4 (86.7) |
21.0 (69.8) |
12.3 (54.1) |
10.9 (51.6) |
37.1 (98.8) |
| Mean daily maximum °C (°F) | −2.5 (27.5) |
−2.4 (27.7) |
2.3 (36.1) |
9.5 (49.1) |
16.3 (61.3) |
20.5 (68.9) |
23.3 (73.9) |
21.4 (70.5) |
15.9 (60.6) |
8.7 (47.7) |
2.8 (37.0) |
−0.5 (31.1) |
9.6 (49.3) |
| Daily mean °C (°F) | −4.8 (23.4) |
−5.0 (23.0) |
−1.0 (30.2) |
5.2 (41.4) |
11.5 (52.7) |
16.1 (61.0) |
19.1 (66.4) |
17.4 (63.3) |
12.4 (54.3) |
6.2 (43.2) |
0.9 (33.6) |
−2.5 (27.5) |
6.3 (43.3) |
| Mean daily minimum °C (°F) | −7.2 (19.0) |
−7.6 (18.3) |
−4.0 (24.8) |
1.7 (35.1) |
7.2 (45.0) |
12.2 (54.0) |
15.3 (59.5) |
13.9 (57.0) |
9.4 (48.9) |
4.1 (39.4) |
−0.9 (30.4) |
−4.5 (23.9) |
3.3 (37.9) |
| Record low °C (°F) | −35.9 (−32.6) |
−35.2 (−31.4) |
−29.9 (−21.8) |
−21.8 (−7.2) |
−6.6 (20.1) |
0.1 (32.2) |
4.9 (40.8) |
1.3 (34.3) |
−3.1 (26.4) |
−12.9 (8.8) |
−22.2 (−8.0) |
−34.4 (−29.9) |
−35.9 (−32.6) |
| Average precipitation mm (inches) | 46 (1.8) |
36 (1.4) |
36 (1.4) |
37 (1.5) |
47 (1.9) |
69 (2.7) |
84 (3.3) |
87 (3.4) |
57 (2.2) |
64 (2.5) |
56 (2.2) |
51 (2.0) |
670 (26.4) |
| Average extreme snow depth cm (inches) | 15 (5.9) |
19 (7.5) |
14 (5.5) |
1 (0.4) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
3 (1.2) |
9 (3.5) |
19 (7.5) |
| Average rainy days | 9 | 7 | 10 | 13 | 16 | 18 | 17 | 17 | 20 | 20 | 16 | 10 | 173 |
| Average snowy days | 25 | 23 | 16 | 8 | 1 | 0.1 | 0 | 0 | 0.1 | 5 | 16 | 23 | 117 |
| Average relative humidity (%) | 86 | 84 | 79 | 69 | 65 | 69 | 71 | 76 | 80 | 83 | 86 | 87 | 78 |
| Mean monthly sunshine hours | 18.9 | 45.5 | 120.5 | 177.9 | 255.6 | 254.3 | 267.7 | 228.1 | 134.8 | 61.8 | 23.0 | 8.1 | 1,596.2 |
| Source 1: Pogoda.ru.net[1] | |||||||||||||
| Source 2: NOAA[2] | |||||||||||||
References
- ^ "Pogoda.ru.net" (in Russian). Weather and Climate (Погода и климат). Retrieved 8 November 2021.
- ^ "Leningrad/Pulkovo Climate Normals 1991–2020". National Oceanic and Atmospheric Administration. Retrieved 3 November 2023.