Under the Köppen–Geiger climate classification system, Dnipro has a humid continental climate (Dfa/Dfb). Snowfall is more common in the hills than at the city’s lower elevations. The city has four distinct seasons: a cold, snowy winter; a hot summer; and two relatively wet transition periods. However, according to other schemes (such as the Salvador Rivas-Martínez bioclimatic one), Dnipro has a Supratemperate bioclimate, and belongs to the Temperate xeric steppic thermoclimatic belt, due to high evapotranspiration.
During the summer, Dnipro is very warm (average day temperature in July is 24 to 28 °C (75 to 82 °F), even hot sometimes 32 to 36 °C (90 to 97 °F). Temperatures as high as 36 °C (97 °F) have been recorded in May. Winter is not so cold (average day temperature in January is −4 to 0 °C (25 to 32 °F), but when there is no snow and the wind blows hard, it feels extremely cold. A mix of snow and rain happens usually in December.
The best time for visiting the city is in late spring (late April and May), and early in autumn: September, October, when the city’s trees turn yellow. Other times are mainly dry with a few showers.
“However, the city is characterized with significant pollution of air with industrial emissions.” The “severely polluted air and water” and allegedly “vast areas of decimated landscape” of Dnipro and Donetsk are considered by some to be an environmental crisis. Though exactly where in Dnipropetrovsk these areas might be found is not stated.