SmogRank / United States / Washington / Picnic Point-North Lynnwood

Picnic Point-North Lynnwood, month by month

Picnic Point-North Lynnwood has a measured daily mean on 778 days since 5 August 2024. Its worst month was September 2025, at 44 US AQI (8.0 µg/m³), 1,244th of 3,104 cities on that month's world ranking. Its cleanest was July 2026, at 15 US AQI (2.7 µg/m³).

Every month since 2024

202629 so far278 days measured2,608th of 2,791 in the world
Jan43#1,558Feb35#2,376Mar32#2,563Apr38#1,926May31#2,118Jun17#2,412Jul15#2,770Aug34#2,407Sep21#2,791Oct25#2,322
202534 for the year351 days measured2,340th of 2,681 in the world
Jan39#1,673Feb23#2,517Mar23#2,623Apr26#2,629May25#2,464Jun35#2,128Jul36#2,135Aug41#2,059Sep44#1,244Oct44#913Nov37#1,996Dec31#2,559
2024too few days for a mean (a year needs 257)149 days measured
JanFebMarAprMayJunJulAug27#1,893Sep29#1,722Oct27#1,801Nov33#2,048Dec29#2,235
Each square is a month's mean PM2.5 in US AQI from Picnic Point-North Lynnwood'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 Picnic Point-North Lynnwood marked; each year, the year's. A dashed square is the running month, so far.
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

Picnic Point-North Lynnwood's worst months

MonthUS AQIDays measuredWorld rank
September 2025 448.0 µg/m³30 of 301,244thof 3,104
October 2025 447.9 µg/m³31 of 31913thof 2,614
January 2026 437.8 µg/m³31 of 311,558thof 2,617
August 2025 417.3 µg/m³31 of 312,059thof 2,901
January 2025 397.1 µg/m³31 of 311,673rdof 2,474
April 2026 386.9 µg/m³30 of 301,926thof 2,941

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.

Picnic Point-North Lynnwood's worst days

DayUS AQIEpisode
5 Aug 2026 9734.0 µg/m³North-western United States and Canada, 4 to 22 August 2026
1 Jan 2026 7924.1 µg/m³–
6 Aug 2026 7421.4 µg/m³North-western United States and Canada, 4 to 22 August 2026
4 Dec 2024 6918.8 µg/m³–
3 Dec 2024 6818.2 µg/m³–
29 Jan 2025 6516.7 µg/m³–
4 Aug 2026 6516.5 µg/m³North-western United States and Canada, 4 to 22 August 2026
26 Jan 2026 6416.3 µg/m³–
22 Jul 2026 6215.1 µg/m³–
22 Jan 2026 6215.0 µg/m³–

Daily means, the highest since 5 Aug 2024; 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, Picnic Point-North Lynnwood, United States, 5 Aug 2024 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/picnic-point-north-lynnwood/history (accessed 12 Oct 2026).

Download chart (PNG)

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.

Picnic Point-North Lynnwood now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 19:07 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).