| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -11.9° | -23.4° | 3mm | 3.2 | 24 |
| February | -6.1° | -19° | 2.6mm | 2 | 26 |
| March | 3.1° | -9.2° | 6.8mm | 3.2 | 25 |
| April | 14° | 0.9° | 22.1mm | 5.1 | 69 |
| May | 21.7° | 9.1° | 32.6mm | 6.7 | 87 |
| June | 27.2° | 16.1° | 78mm | 10.9 | 77 |
| July | 28.7° | 19.5° | 150mm | 12.2 | 69 |
| August | 26.8° | 17.1° | 99.1mm | 9.9 | 80 |
| September | 21.6° | 10° | 35.2mm | 6.5 | 87 |
| October | 12.2° | 0.8° | 14.4mm | 3.3 | 67 |
| November | -0.7° | -10.6° | 6.6mm | 3.2 | 24 |
| December | -10.2° | -20.7° | 5mm | 3.7 | 23 |
January in Longjiang averages a daily high of -11.9°C with nights around -23.4°C. Expect roughly 3.2 wet days totalling 3mm. A hard month to visit for comfort alone.
February in Longjiang averages a daily high of -6.1°C with nights around -19°C. Rain is rare — about 2 wet days and 2.6mm across the month. A hard month to visit for comfort alone.
March in Longjiang averages a daily high of 3.1°C with nights around -9.2°C. Expect roughly 3.2 wet days totalling 6.8mm. A hard month to visit for comfort alone.
April in Longjiang averages a daily high of 14°C with nights around 0.9°C. Expect roughly 5.1 wet days totalling 22.1mm. Generally workable, with some weather to plan around.
May in Longjiang averages a daily high of 21.7°C with nights around 9.1°C. Expect roughly 6.7 wet days totalling 32.6mm. Comfortable conditions for being outdoors all day.
June in Longjiang averages a daily high of 27.2°C with nights around 16.1°C. Expect roughly 10.9 wet days totalling 78mm. Comfortable conditions for being outdoors all day.
July in Longjiang averages a daily high of 28.7°C with nights around 19.5°C. Expect roughly 12.2 wet days totalling 150mm. Generally workable, with some weather to plan around.
August in Longjiang averages a daily high of 26.8°C with nights around 17.1°C. Expect roughly 9.9 wet days totalling 99.1mm. Comfortable conditions for being outdoors all day.
September in Longjiang averages a daily high of 21.6°C with nights around 10°C. Expect roughly 6.5 wet days totalling 35.2mm. Comfortable conditions for being outdoors all day.
October in Longjiang averages a daily high of 12.2°C with nights around 0.8°C. Expect roughly 3.3 wet days totalling 14.4mm. Generally workable, with some weather to plan around.
November in Longjiang averages a daily high of -0.7°C with nights around -10.6°C. Expect roughly 3.2 wet days totalling 6.6mm. A hard month to visit for comfort alone.
December in Longjiang averages a daily high of -10.2°C with nights around -20.7°C. Expect roughly 3.7 wet days totalling 5mm. 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. Longjiang peaks at 87.
Based on 30 years of records, August–September scores highest for comfort in Longjiang, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.7°C.
July is the wettest, averaging 150mm of rain across roughly 12.2 wet days.
January is the coolest month, with average daily highs around -11.9°C.