SmogRank / India / Haryana / Ambāla

Ambāla, month by month

Ambāla has a measured daily mean on 316 days since 2 October 2025. Its worst month was November 2025, at 181 US AQI (97.9 µg/m³), 47th of 2,715 cities on that month's world ranking. Its cleanest was August 2026, at 92 US AQI (31.1 µg/m³).

Every month since 2025

2026126 so far245 days measured56th of 2,793 in the world
Jan20 daysFeb18 daysMar138#80Apr123#96May155#28Jun121#67Jul100#87Aug92#102Sep112#55Oct6 days
2025too few days for a mean (a year needs 256)71 days measured
JanFebMarAprMayJunJulAugSepOct14 daysNov181#47Dec162#106
Each square is a month's mean PM2.5 in US AQI from Ambāla's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Ambāla marked; each year, the year's.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Months without a mean, and why

4 months
MonthWhy
Oct 20266 of 12 days measured; a month needs 9. The others: 5 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours).
Feb 202618 of 28 days measured; a month needs 20. The others: 10 with under 18 hours of readings or readings that failed our checks.
Jan 202620 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Oct 202514 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Ambāla's worst months

MonthUS AQIDays measuredWorld rankEpisode
November 2025 18197.9 µg/m³26 of 3047thof 2,715–
December 2025 16271.0 µg/m³31 of 31106thof 3,006–
May 2026 15561.7 µg/m³30 of 3128thof 2,874–
March 2026 13850.7 µg/m³30 of 3180thof 2,971–
April 2026 12344.3 µg/m³29 of 3096thof 2,941North-western India, 21 to 29 April 2026
June 2026 12143.5 µg/m³27 of 3067thof 2,497–

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

Ambāla's worst days

DayUS AQI
21 Oct 2025 244169.0 µg/m³
22 Oct 2025 232157.0 µg/m³
20 Nov 2025 219144.0 µg/m³
19 Nov 2025 214139.0 µg/m³
17 Nov 2025 207132.0 µg/m³
16 Nov 2025 206131.0 µg/m³
21 Nov 2025 202127.0 µg/m³
15 Nov 2025 200125.0 µg/m³
8 Nov 2025 199124.0 µg/m³
23 Oct 2025 197121.0 µg/m³

Daily means, the highest since 2 Oct 2025; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Ambāla, India, 2 Oct 2025 – 7 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/ambala/history (accessed 12 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Ambāla now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).