If you only need Hefei climate: monthly averages, the figures and table here are the whole story. Hefei runs from 2.0 C in Jan to 28.3 C in Jul, a swing of 26.3 C. Rain is strongly seasonal: Jul is the wettest month at 7.33 mm/day, while Dec runs at 1.24 mm/day, about 5.9x drier. Taken together that is roughly 1,149 mm of rain a year for the grid cell. The build runs on a schedule and caches the last good response, so the numbers stay put even when the upstream API is having a bad day. The table underneath carries the per-month breakdown; the related pages cover the same dataset nearby.
Annual mean temperature 16.0 C
Warmest month Jul (28.3 C)
Coldest month Jan (2.0 C)
Wettest month Jul (7.33 mm/day)
All-time record high 40.4 C
All-time record low -14.3 C
Annual precipitation 1,153 mm / year
Coordinates 31.86389, 117.28083
Population 9,465,881
Average monthly temperature and rainfall in Hefei
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
2.0
1.56
23.9
-14.3
Feb
4.9
2.09
25.1
-13.7
Mar
10.0
2.28
29.1
-6.4
Apr
16.2
3.00
34.6
-0.8
May
21.8
3.11
38.4
6.2
Jun
25.8
5.50
39.2
13.6
Jul
28.3
7.33
40.4
16.6
Aug
27.5
5.10
38.4
15.7
Sep
23.2
2.95
37.0
9.3
Oct
17.4
1.69
34.2
1.7
Nov
10.7
1.96
28.4
-9.4
Dec
3.7
1.24
21.9
-10.1
What the Hefei climate table shows
Values are multi-decadal climatological averages for the 31.86389, 117.28083 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
How much rain is 7.33 mm/day in a month?
Rain is recorded as a daily mean, so 7.33 mm/day is roughly 223 mm across a 30-day month.
Does Hefei get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.