Posnan - Climate

Climate

The climate of Poznań is continental humid with relatively cold winters and warm summers. Snow is common in winter, when night-time temperatures are typically below zero. In summer temperatures may often reach 30 °C (86 °F). Annual rainfall is less than 500 mm (20 in), among the lowest in Poland. The rainiest month is July, mainly due to short but intense cloudbursts and thunderstorms. The number of hours of sunshine is among the highest in the country. Climate in this area has mild differences between highs and lows, and there is adequate rainfall year round. The Köppen Climate Classification subtype for this climate is "Cfb" (Marine West Coast Climate/Oceanic climate).

Climate data for Poznań
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 15.0
(59)
16.6
(61.9)
24.1
(75.4)
30.0
(86)
34.0
(93.2)
36.2
(97.2)
38.2
(100.8)
37.7
(99.9)
34.1
(93.4)
27.3
(81.1)
20.2
(68.4)
16.8
(62.2)
38.2
(100.8)
Average high °C (°F) 2.3
(36.1)
2.9
(37.2)
8.3
(46.9)
13.6
(56.5)
19.4
(66.9)
22.1
(71.8)
24.6
(76.3)
24.5
(76.1)
19.3
(66.7)
13.9
(57)
6.7
(44.1)
3.2
(37.8)
13.4
(56.1)
Daily mean °C (°F) −1.2
(29.8)
−0.7
(30.7)
4.0
(39.2)
9.8
(49.6)
14.9
(58.8)
18.2
(64.8)
20.1
(68.2)
19.8
(67.6)
15.3
(59.5)
9.9
(49.8)
4.4
(39.9)
0.2
(32.4)
9.6
(49.3)
Average low °C (°F) −4.6
(23.7)
−4.3
(24.3)
−0.3
(31.5)
6.0
(42.8)
10.3
(50.5)
14.3
(57.7)
15.5
(59.9)
15.1
(59.2)
11.3
(52.3)
5.9
(42.6)
2.1
(35.8)
−2.8
(27)
5.7
(42.3)
Record low °C (°F) −28.5
(−19.3)
−27.6
(−17.7)
−21.3
(−6.3)
−6.8
(19.8)
−3.0
(26.6)
1.1
(34)
4.7
(40.5)
3.0
(37.4)
−3.8
(25.2)
−6.9
(19.6)
−15.2
(4.6)
−22.4
(−8.3)
−28.5
(−19.3)
Precipitation mm (inches) 25
(0.98)
23
(0.91)
30
(1.18)
38
(1.5)
45
(1.77)
62
(2.44)
70
(2.76)
58
(2.28)
35
(1.38)
39
(1.54)
37
(1.46)
30
(1.18)
492
(19.37)
Avg. precipitation days 14 12 11 9 11 12 13 13 9 12 14 12 142
% humidity 81 82 75 68 63 68 70 72 74 77 80 82 74
Mean monthly sunshine hours 56 67 118 179 230 237 236 229 171 122 55 40 1,740
Source: Polish Central Statistical Office

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