If you only need Mannheim climate: monthly averages, the figures and table here are the whole story. Mannheim runs from 0.2 C in Jan to 20.6 C in Jul, a swing of 20.4 C. Rain is spread through the year, with May the wettest month at 2.42 mm/day and Apr the driest at 1.45 mm/day. Taken together that is roughly 738 mm of rain a year for the grid cell. The same build that regenerates the sitemap refreshes these values, and unchanged pages are left untouched. The table underneath carries the per-month breakdown; the related pages cover the same dataset nearby.
Annual mean temperature 10.1 C
Warmest month Jul (20.6 C)
Coldest month Jan (0.2 C)
Wettest month May (2.42 mm/day)
All-time record high 39.5 C
All-time record low -20.8 C
Annual precipitation 741 mm / year
Coordinates 49.4891, 8.46694
Population 307,960
Average monthly temperature and rainfall in Mannheim
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
0.2
2.08
12.6
-20.8
Feb
1.2
1.83
16.2
-17.7
Mar
4.9
1.74
21.8
-14.8
Apr
9.7
1.45
28.6
-4.8
May
14.0
2.42
31.2
-1.6
Jun
18.3
2.08
36.5
4.5
Jul
20.6
2.27
39.2
7.3
Aug
20.0
2.30
39.5
6.5
Sep
15.3
1.68
32.8
0.8
Oct
10.2
1.98
26.4
-5.2
Nov
5.0
2.11
20.8
-5.9
Dec
1.2
2.33
14.4
-17.5
What the Mannheim climate table shows
Values are multi-decadal climatological averages for the 49.4891, 8.46694 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
Is Mannheim climate data a forecast?
No. These are multi-decadal averages for the grid cell, not a prediction for any particular year.
Why do the numbers differ from a weather app?
An app shows one location on one day. These are long-run averages, so they smooth out single hot or cold spells.