SmogRank / Spain / Castille and León / Valladolid

Valladolid, month by month

Valladolid has a measured daily mean on 685 days since 11 January 2023. Its worst month was February 2023, at 59 US AQI (13.2 µg/m³), 463rd of 1,129 cities on that month's world ranking. Its cleanest was May 2024, at 33 US AQI (5.9 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 200)79 days measured
Jan11 daysFeb5 daysMarnoneAprnoneMay1 dayJun8 daysJul15 daysAug20 daysSep13 daysOct6 days
2025too few days for a mean (a year needs 256)90 days measured
Jan46#1,339Feb16 daysMar19 daysApr10 daysMay4 daysJun1 dayJul4 daysAug6 daysSepnoneOct1 dayNov3 daysDec3 days
2024too few days for a mean (a year needs 257)228 days measured
Jan55#786Feb52#760Mar15 daysApr34#1,651May33#2,043Jun41#1,554Jul12 daysAug7 daysSepnoneOct12 daysNov55#683Dec17 days
202346 for the year288 days measured815th of 1,355 in the world
Jan8 daysFeb59#463Mar48#387Apr39#1,045May50#664Jun36#1,268Jul37#1,020Aug13 daysSep16 daysOct41#974Nov37#1,540Dec54#589
Each square is a month's mean PM2.5 in US AQI from Valladolid'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 Valladolid 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

30 months
MonthWhy
Oct 20266 of 12 days measured; a month needs 9. The others: 4 with no readings from the monitors, 2 with readings for part of the day (a day needs 18 hours).
Sep 202613 of 30 days measured; a month needs 21. The others: 17 with readings for part of the day (a day needs 18 hours).
Aug 202620 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jul 202615 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Jun 20268 of 30 days measured; a month needs 21. The others: 22 with under 18 hours of readings or readings that failed our checks.
May 20261 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Apr 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 20265 of 28 days measured; a month needs 20. The others: 23 with under 18 hours of readings or readings that failed our checks.
Jan 202611 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks.
Dec 20253 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Nov 20253 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Oct 20251 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Sep 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 20256 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks.
Jul 20254 of 31 days measured; a month needs 22. The others: 27 with under 18 hours of readings or readings that failed our checks.
Jun 20251 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks.
May 20254 of 31 days measured; a month needs 22. The others: 27 with under 18 hours of readings or readings that failed our checks.
Apr 202510 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks.
Mar 202519 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Feb 202516 of 28 days measured; a month needs 20. The others: 12 with under 18 hours of readings or readings that failed our checks.
Dec 202417 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks.
Oct 202412 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Sep 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 20247 of 31 days measured; a month needs 22. The others: 24 with under 18 hours of readings or readings that failed our checks.
Jul 202412 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Mar 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Sep 202316 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks.
Aug 202313 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Jan 20238 of 31 days measured; a month needs 22. The others: 13 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.

Valladolid's worst months

MonthUS AQIDays measuredWorld rank
February 2023 5913.2 µg/m³28 of 28463rdof 1,129
November 2024 5511.1 µg/m³22 of 30683rdof 2,624
January 2024 5511.0 µg/m³31 of 31786thof 2,385
December 2023 5410.6 µg/m³31 of 31589thof 2,247
February 2024 529.4 µg/m³28 of 29760thof 2,486
May 2023 509.0 µg/m³27 of 31664thof 1,600

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.

Valladolid's worst days

DayUS AQIEpisode
31 Oct 2024 8527.6 µg/m³Northern Spain, October 2024
22 Feb 2023 8024.7 µg/m³–
14 Aug 2026 7823.6 µg/m³–
27 Jan 2024 7823.4 µg/m³–
19 Aug 2026 7722.9 µg/m³–
30 Jan 2024 7622.6 µg/m³–
27 Nov 2024 7622.6 µg/m³–
3 Feb 2023 7622.5 µg/m³–
21 Feb 2023 7622.4 µg/m³–
17 Dec 2024 7622.3 µg/m³–

Daily means, the highest since 11 Jan 2023; 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, Valladolid, Spain, 11 Jan 2023 – 8 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/es/valladolid/history (accessed 13 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.

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

Updated 2026-10-13 00:07 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).