Climate
Lom logs 39 frost days a year to Plovdiv's 55 — Lom wins by 16. Plovdiv also leads on hot days by 8.
Lom
Feels-like °C
Dinner outside
Plovdiv
Feels-like °C
Dinner outside
Air Quality
Lom averages 14.1 µg/m³ (moderate) PM2.5 annually versus Plovdiv's 17.5 µg/m³ (sensitive-groups) — Lom breathes ~20% cleaner air (3.4 µg/m³ lower).
Lom
Plovdiv
PM2.5 annual average
WHO classification
City Scale
Both maps at the same real-world scale — 1 cm on either map is the same distance.
Lom (27K) and Plovdiv (332K) are 12x in population — Plovdiv is the larger metro, Lom the smaller.
Plovdiv is roughly 12x the scale of Lom
Based on population (area data unavailable for some cities)
PlovdivLomCity Scale Rankings
Plovdiv332K12xLom27K1xWho Thrives Here
Both cities work well for the clean air seeker.
Also compared
Sofia Frequently asked about Lom vs Plovdiv
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