Last updated: July 31, 2025
Under the Köppen–Geiger climate classification Jiulongdi features a humid continental climate (Dwa). Temperatures typically range between -4 °C (25 °F) and 26 °C (79 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 678 mm (26.7 inches) and receives 65 rainy days on the 1 mm (0.04 inches) threshold annually. Jiulongdi enjoys an average of 3376 hours of sunshine throughout the year, and daylight varies from 9 hours 20 minutes to 14 hours 58 minutes per day.
The warmest months in Jiulongdi are July, August and September, with daily mean temperatures ranging from 22 to 26 °C (71 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -1 °C (25 - 30 °F) throughout the day. On average each year, Jiulongdi experiences 58 days above 25 °C (77.0 °F) and 93 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 4°C (39°F)  | 7°C (45°F)  | 13°C (56°F)  | 19°C (67°F)  | 26°C (79°F)  | 28°C (82°F)  | 31°C (88°F)  | 32°C (90°F)  | 27°C (81°F)  | 25°C (77°F)  | 16°C (61°F)  | 9°C (49°F)  | 
| Mean maximum | 3°C (38°F)  | 5°C (41°F)  | 10°C (51°F)  | 18°C (64°F)  | 23°C (74°F)  | 26°C (78°F)  | 30°C (86°F)  | 30°C (87°F)  | 27°C (80°F)  | 23°C (73°F)  | 15°C (60°F)  | 7°C (44°F)  | 
| Average high | -2°C (29°F)  | -0°C (31°F)  | 5°C (41°F)  | 12°C (53°F)  | 18°C (65°F)  | 23°C (74°F)  | 27°C (81°F)  | 27°C (81°F)  | 23°C (75°F)  | 16°C (61°F)  | 8°C (47°F)  | 1°C (34°F)  | 
| Daily mean | -4°C (25°F)  | -2°C (28°F)  | 3°C (38°F)  | 10°C (50°F)  | 16°C (62°F)  | 21°C (71°F)  | 26°C (78°F)  | 26°C (79°F)  | 22°C (71°F)  | 14°C (57°F)  | 6°C (43°F)  | -1°C (30°F)  | 
| Average low | -6°C (21°F)  | -4°C (24°F)  | 1°C (34°F)  | 8°C (47°F)  | 14°C (58°F)  | 20°C (68°F)  | 24°C (75°F)  | 24°C (76°F)  | 20°C (68°F)  | 12°C (54°F)  | 4°C (39°F)  | -4°C (26°F)  | 
| Mean minimum | -12°C (10°F)  | -11°C (12°F)  | -4°C (25°F)  | 3°C (38°F)  | 10°C (50°F)  | 16°C (61°F)  | 21°C (70°F)  | 20°C (69°F)  | 15°C (59°F)  | 6°C (43°F)  | -3°C (26°F)  | -12°C (10°F)  | 
| Minimum | -17°C (2°F)  | -12°C (10°F)  | -8°C (19°F)  | 1°C (35°F)  | 7°C (45°F)  | 15°C (59°F)  | 20°C (68°F)  | 18°C (65°F)  | 13°C (56°F)  | 5°C (41°F)  | -6°C (21°F)  | -15°C (6°F)  | 
Compare temperature, precipitation, sunshine, UV index in Jiulongdi, China with other places around the world.
Jiulongdi usually has the most precipitation in July, August and September, with an average of 9 rainy days and 135 mm (5.3 inches) of precipitation per month. The driest months in Jiulongdi are January, February and December. On average, 8 mm (0.3 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 5 (0.2) | 10 (0.4) | 13 (0.5) | 25 (1.0) | 60 (2.4) | 60 (2.4) | 89 (3.5) | 232 (9.1) | 84 (3.3) | 54 (2.1) | 37 (1.5) | 9 (0.3) | 
| Average precipitation days (≥ 1 mm) | 2 | 2 | 3 | 5 | 7 | 6 | 8 | 13 | 8 | 6 | 3 | 2 | 
The sunniest months in Jiulongdi are May, June and July, when the sun shines an average of 10 hours 43 minutes a day. Least sunny months in Jiulongdi: January, November and December receive an average of 7 hours 25 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 203 | 246 | 291 | 301 | 329 | 325 | 331 | 312 | 287 | 266 | 236 | 243 | 
| Mean daily daylight hours | 9h 38m | 10h 39m | 11h 57m | 13h 16m | 14h 24m | 14h 58m | 14h 41m | 13h 41m | 12h 25m | 11h 6m | 9h 56m | 9h 20m | 
Jiulongdi experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Jiulongdi UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 2 | 4 | 5 | 8 | 8 | 9 | 11 | 10 | 7 | 6 | 3 | 2 |