Katihar vs Silchar
Side-by-side air quality comparison between Katihar and Silchar.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Katihar averaged an AQI of 123 while Silchar averaged 52 — a 71-point (137%) gap, with Katihar the more polluted and Silchar the cleaner of the two. On 594 days when both cities reported, Silchar was cleaner on 535 of them; the average daily gap was 116 AQI points.
Seasonality & days
Katihar peaks in December, while Silchar peaks in February. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Silchar 87 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Silchar has worsened by 11 AQI points (26.8%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Silchar spans 1 stations with a 0-point spread (min 47, max 47).