

Beijing has a humid continental climate with hot humid summers and cold dry winters.
Average annual rainfall is only about 60cm, and most of this falls in July and August (20cm each), with virtually no precipitation in winter. The average July high is 29ºC and the average January low is -6ºC.
The winter climate is due to Siberian air masses that move southward across the Mongolian Plateau. The summers are hot owing to warm and humid monsoon winds from the southeast, bringing Beijing most of its annual precipitation.
| ºC | ºF | |
| January | 1.4 | 34.5 |
| February | 4.2 | 39.6 |
| March | 11.2 | 52.2 |
| April | 20.2 | 68.4 |
| May | 26.5 | 79.7 |
| June | 30.7 | 87.3 |
| July | 31.3 | 88.3 |
| August | 29.9 | 85.8 |
| September | 26.0 | 78.8 |
| October | 19.6 | 67.3 |
| November | 10.1 | 50.2 |
| December | 3.1 | 37.6 |
| Year | 17.9 | 64.2 |
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