Geography and climate
Longzhou has a monsoon-influenced humid subtropical climate (Köppen Cwa), with short, mild winters, and long, very hot and humid summers. Winter begins dry but becomes progressively wetter and cloudier. Spring is generally overcast and often rainy, while summer continues to be rainy though is the sunniest time of year. Autumn is sunny and dry. The monthly 24-hour average temperature ranges from 14.7 °C (58.5 °F) in January to 29.2 °C (84.6 °F) in July, and the annual mean is 23.12 °C (73.6 °F). The annual rainfall is just above 1,300 mm (51 in), a majority of which is delivered from June to August. With monthly percent possible sunshine ranging from 16% in February and March to 50% in September, the county receives 1,583 hours of bright sunshine annually.
| Climate data for Longzhou, elevation 129 m (423 ft), (1991–2020 normals, extremes 1953–present) |
| Month |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
| Record high °C (°F) |
32.6
(90.7) |
36.7
(98.1) |
37.1
(98.8) |
40.4
(104.7) |
41.6
(106.9) |
40.1
(104.2) |
39.1
(102.4) |
39.9
(103.8) |
38.6
(101.5) |
36.5
(97.7) |
35.2
(95.4) |
31.7
(89.1) |
41.6
(106.9) |
| Mean daily maximum °C (°F) |
18.4
(65.1) |
20.8
(69.4) |
23.3
(73.9) |
28.5
(83.3) |
32.1
(89.8) |
33.4
(92.1) |
33.6
(92.5) |
33.3
(91.9) |
32.3
(90.1) |
29.5
(85.1) |
25.6
(78.1) |
21.0
(69.8) |
27.7
(81.8) |
| Daily mean °C (°F) |
14.2
(57.6) |
16.3
(61.3) |
19.2
(66.6) |
23.8
(74.8) |
26.9
(80.4) |
28.3
(82.9) |
28.4
(83.1) |
27.9
(82.2) |
26.8
(80.2) |
23.9
(75.0) |
19.8
(67.6) |
15.6
(60.1) |
22.6
(72.7) |
| Mean daily minimum °C (°F) |
11.4
(52.5) |
13.4
(56.1) |
16.6
(61.9) |
20.6
(69.1) |
23.4
(74.1) |
25.0
(77.0) |
25.1
(77.2) |
24.7
(76.5) |
23.3
(73.9) |
20.3
(68.5) |
16.1
(61.0) |
12.1
(53.8) |
19.3
(66.8) |
| Record low °C (°F) |
−3
(27) |
2.2
(36.0) |
3.0
(37.4) |
9.2
(48.6) |
15.1
(59.2) |
17.4
(63.3) |
19.9
(67.8) |
19.6
(67.3) |
14.7
(58.5) |
8.3
(46.9) |
3.4
(38.1) |
−0.2
(31.6) |
−3
(27) |
| Average precipitation mm (inches) |
34.6
(1.36) |
27.2
(1.07) |
56.5
(2.22) |
77.9
(3.07) |
150.6
(5.93) |
214.8
(8.46) |
215.5
(8.48) |
228.2
(8.98) |
116.1
(4.57) |
63.3
(2.49) |
35.3
(1.39) |
28.1
(1.11) |
1,248.1
(49.13) |
| Average precipitation days (≥ 0.1 mm) |
10.3 |
9.9 |
13.8 |
12.0 |
13.8 |
17.3 |
17.8 |
16.9 |
11.1 |
7.8 |
6.7 |
7.2 |
144.6 |
| Average snowy days |
0.1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0.1 |
| Average relative humidity (%) |
78 |
77 |
80 |
78 |
77 |
81 |
82 |
83 |
80 |
78 |
77 |
76 |
79 |
| Mean monthly sunshine hours |
63.1 |
62.1 |
53.1 |
96.1 |
159.5 |
157.1 |
179.1 |
182.3 |
171.2 |
154.1 |
127.3 |
106.4 |
1,511.4 |
| Percentage possible sunshine |
19 |
19 |
14 |
25 |
39 |
39 |
44 |
46 |
47 |
43 |
39 |
32 |
34 |
| Source: China Meteorological Administration extremesall-time October record |
