Everything below is collected in one spot so you do not have to cross-check Derby climate: monthly averages by hand. The gap between Jan and Jul is 12.7 C here: 3.4 C against 16.1 C. No month dominates: the wettest is Jul at 2.52 mm/day, the driest Apr at 1.60 mm/day. Taken together that is roughly 778 mm of rain a year for the grid cell. Values come from a public open API; a successful result is cached so a later outage never blanks the page. The table underneath carries the per-month breakdown; the related pages cover the same dataset nearby.
Annual mean temperature 9.3 C
Warmest month Jul (16.1 C)
Coldest month Jan (3.4 C)
Wettest month Jul (2.52 mm/day)
All-time record high 31.5 C
All-time record low -9.3 C
Annual precipitation 777 mm / year
Coordinates 52.92277, -1.47663
Population 270,468
Average monthly temperature and rainfall in Derby
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
3.4
2.02
13.0
-6.7
Feb
3.5
1.89
16.2
-9.3
Mar
5.2
1.67
19.1
-5.4
Apr
8.0
1.60
23.2
-3.6
May
11.2
1.95
25.3
-1.1
Jun
14.3
2.48
27.7
2.9
Jul
16.1
2.52
31.5
6.0
Aug
15.8
2.50
29.1
4.7
Sep
13.3
1.84
27.2
2.9
Oct
10.1
2.52
25.3
-2.9
Nov
6.3
2.38
18.1
-4.7
Dec
4.0
2.23
13.7
-9.0
What the Derby climate table shows
Values are multi-decadal climatological averages for the 52.92277, -1.47663 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 2.52 mm/day in a month?
Rain is recorded as a daily mean, so 2.52 mm/day is roughly 77 mm across a 30-day month.
Does Derby get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.