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Has the climate in Deir ez-Zor changed?

Deir ez-Zor has warmed about 0.6°F between 1991 and 2011.

About 0.3°F per decade, measured from Deir ez-Zor's official daily weather records, 1991–2011. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Deir ez-Zor's climate has warmed more slowly than most other cities in Syria.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Average temperature
+0.5°F
1970s
68.9°F
Recent
69.4°F
A steady upward drift

Deir ez-Zor's temperature, year by year

Average temperature for each year from 1991 to 2011.

65°67°69°71°73°1991: 69.4°F1992: 66.6°F1993: 69.5°F1994: 70.4°F1995: 69.7°F1996: 69.6°F1997: 67.4°F1998: 70.4°F1999: 70.1°F2000: 69.2°F2001: 69.8°F2002: 69.1°F2003: 68.3°F2004: 67.9°F2005: 67.2°F2006: 69.1°F2007: 70.0°F2008: 69.7°F2009: 69.6°F2010: 72.2°F2011: 68.3°Flong-term trend1991200020102011
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

Methodology & sources

Temperature — 1991–2020 normals computed from 21 years of daily observations at Deir Zzor, a weather station, about 7 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →