| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -6.5° | -17.9° | 1.6mm | 1.3 | 27 |
| February | -1° | -13.3° | 1.1mm | 0.7 | 29 |
| March | 6.9° | -5.8° | 6.1mm | 2.1 | 42 |
| April | 16.8° | 3.3° | 16.5mm | 4 | 82 |
| May | 24.1° | 10.7° | 32.1mm | 6.3 | 87 |
| June | 28.5° | 16.4° | 66mm | 9 | 76 |
| July | 30° | 19.8° | 102.9mm | 10.3 | 67 |
| August | 28.8° | 17.8° | 84.1mm | 8.1 | 77 |
| September | 24.3° | 11° | 28.2mm | 4.9 | 90 |
| October | 15.8° | 2.6° | 20.6mm | 3.3 | 80 |
| November | 3.9° | -7.4° | 15.1mm | 2.8 | 29 |
| December | -4.8° | -15.6° | 2.3mm | 1.5 | 27 |
January in Tongliao averages a daily high of -6.5°C with nights around -17.9°C. Rain is rare — about 1.3 wet days and 1.6mm across the month. A hard month to visit for comfort alone.
February in Tongliao averages a daily high of -1°C with nights around -13.3°C. Rain is rare — about 0.7 wet days and 1.1mm across the month. A hard month to visit for comfort alone.
March in Tongliao averages a daily high of 6.9°C with nights around -5.8°C. Rain is rare — about 2.1 wet days and 6.1mm across the month. Demanding conditions — pack for it and plan indoor options.
April in Tongliao averages a daily high of 16.8°C with nights around 3.3°C. Expect roughly 4 wet days totalling 16.5mm. Comfortable conditions for being outdoors all day.
May in Tongliao averages a daily high of 24.1°C with nights around 10.7°C. Expect roughly 6.3 wet days totalling 32.1mm. Comfortable conditions for being outdoors all day.
June in Tongliao averages a daily high of 28.5°C with nights around 16.4°C. Expect roughly 9 wet days totalling 66mm. Comfortable conditions for being outdoors all day.
July in Tongliao averages a daily high of 30°C with nights around 19.8°C. Expect roughly 10.3 wet days totalling 102.9mm. Generally workable, with some weather to plan around.
August in Tongliao averages a daily high of 28.8°C with nights around 17.8°C. Expect roughly 8.1 wet days totalling 84.1mm. Comfortable conditions for being outdoors all day.
September in Tongliao averages a daily high of 24.3°C with nights around 11°C. Expect roughly 4.9 wet days totalling 28.2mm. Comfortable conditions for being outdoors all day.
October in Tongliao averages a daily high of 15.8°C with nights around 2.6°C. Expect roughly 3.3 wet days totalling 20.6mm. Comfortable conditions for being outdoors all day.
November in Tongliao averages a daily high of 3.9°C with nights around -7.4°C. Rain is rare — about 2.8 wet days and 15.1mm across the month. A hard month to visit for comfort alone.
December in Tongliao averages a daily high of -4.8°C with nights around -15.6°C. Rain is rare — about 1.5 wet days and 2.3mm across the month. 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. Tongliao peaks at 90.
Based on 30 years of records, April–May scores highest for comfort in Tongliao, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 30°C.
July is the wettest, averaging 102.9mm of rain across roughly 10.3 wet days.
January is the coolest month, with average daily highs around -6.5°C.