| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -11.6° | -19.2° | 4.6mm | 4.6 | 21 |
| February | -6.4° | -14.1° | 3.4mm | 2.8 | 24 |
| March | 6.8° | -2.5° | 5mm | 2.6 | 46 |
| April | 20° | 8.8° | 8.4mm | 3.1 | 94 |
| May | 27.1° | 15.6° | 11.8mm | 4.3 | 91 |
| June | 32° | 20.5° | 20.9mm | 6.3 | 67 |
| July | 33.6° | 22.3° | 27.9mm | 7.6 | 58 |
| August | 32.2° | 20.9° | 15.6mm | 5.7 | 68 |
| September | 25.5° | 14.9° | 9.7mm | 4 | 92 |
| October | 15.8° | 6.6° | 9mm | 3.3 | 80 |
| November | 3.9° | -3° | 6.6mm | 2.6 | 36 |
| December | -8.2° | -14.8° | 6.4mm | 5.3 | 19 |
January in Baijiantan averages a daily high of -11.6°C with nights around -19.2°C. Expect roughly 4.6 wet days totalling 4.6mm. A hard month to visit for comfort alone.
February in Baijiantan averages a daily high of -6.4°C with nights around -14.1°C. Rain is rare — about 2.8 wet days and 3.4mm across the month. A hard month to visit for comfort alone.
March in Baijiantan averages a daily high of 6.8°C with nights around -2.5°C. Rain is rare — about 2.6 wet days and 5mm across the month. Demanding conditions — pack for it and plan indoor options.
April in Baijiantan averages a daily high of 20°C with nights around 8.8°C. Expect roughly 3.1 wet days totalling 8.4mm. Comfortable conditions for being outdoors all day.
May in Baijiantan averages a daily high of 27.1°C with nights around 15.6°C. Expect roughly 4.3 wet days totalling 11.8mm. Comfortable conditions for being outdoors all day.
June in Baijiantan averages a daily high of 32°C with nights around 20.5°C. Expect roughly 6.3 wet days totalling 20.9mm. Generally workable, with some weather to plan around.
July in Baijiantan averages a daily high of 33.6°C with nights around 22.3°C. Expect roughly 7.6 wet days totalling 27.9mm. Generally workable, with some weather to plan around.
August in Baijiantan averages a daily high of 32.2°C with nights around 20.9°C. Expect roughly 5.7 wet days totalling 15.6mm. Generally workable, with some weather to plan around.
September in Baijiantan averages a daily high of 25.5°C with nights around 14.9°C. Expect roughly 4 wet days totalling 9.7mm. Comfortable conditions for being outdoors all day.
October in Baijiantan averages a daily high of 15.8°C with nights around 6.6°C. Expect roughly 3.3 wet days totalling 9mm. Comfortable conditions for being outdoors all day.
November in Baijiantan averages a daily high of 3.9°C with nights around -3°C. Rain is rare — about 2.6 wet days and 6.6mm across the month. Demanding conditions — pack for it and plan indoor options.
December in Baijiantan averages a daily high of -8.2°C with nights around -14.8°C. Expect roughly 5.3 wet days totalling 6.4mm. A hard month to visit for comfort alone.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Baijiantan peaks at 94.
Based on 30 years of records, April–May scores highest for comfort in Baijiantan, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 33.6°C.
July is the wettest, averaging 27.9mm of rain across roughly 7.6 wet days.
January is the coolest month, with average daily highs around -11.6°C.