Everything below is collected in one spot so you do not have to cross-check Deir ez-Zor climate: monthly averages by hand. The gap between Jan and Jul is 26.8 C here: 5.7 C against 32.5 C. No month dominates: the wettest is Jan at 0.84 mm/day, the driest Jul at 0.00 mm/day. Taken together that is roughly 157 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 19.7 C
Warmest month Jul (32.5 C)
Coldest month Jan (5.7 C)
Wettest month Jan (0.84 mm/day)
All-time record high 47.0 C
All-time record low -6.4 C
Annual precipitation 157 mm / year
Coordinates 35.33588, 40.14084
Population 271,800
Average monthly temperature and rainfall in Deir ez-Zor
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
5.7
0.84
18.9
-6.1
Feb
8.2
0.81
24.1
-6.4
Mar
13.1
0.72
34.8
-4.1
Apr
18.5
0.57
39.7
0.1
May
24.4
0.33
41.7
9.8
Jun
29.6
0.02
46.3
16.1
Jul
32.5
0.00
46.9
19.8
Aug
32.2
0.00
47.0
20.6
Sep
28.3
0.02
44.6
11.3
Oct
22.4
0.44
39.6
4.8
Nov
13.2
0.59
30.8
-3.0
Dec
7.4
0.82
25.5
-5.1
What the Deir ez-Zor climate table shows
Values are multi-decadal climatological averages for the 35.33588, 40.14084 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
Does Deir get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.