White Plains Air Quality in Winter
Across 2019–2025, White Plains's winter (December–February) air quality had a median AQI of 55 (Moderate) over 632 monitored days in the New York-Newark-Jersey City, NY-NJ-PA area. 0.3% of winter days (2 of 632) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 90.2% of days. The cleanest winter on record here was 2024 (median AQI 53, 0 days above 100) and the worst was 2019 (median 56, 1 day above 100, peak AQI 103).
- Good: 28.2%
- Moderate: 71.5%
- Unhealthy for Sensitive Groups: 0.3%
- Unhealthy or worse: 0.0%
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How is the air in White Plains in winter?
Moderate on a typical day: median AQI 55 across 2019–2025, with 0.3% of winter days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓28.2% of winter days were Good (AQI 0–50), 71.5% Moderate (51–100).
- ✓2 days of 632 reached AQI 101+; the winter peak was 127.
- ✓Cleanest month: January; worst month: February.
Frequently asked questions
What is the air quality like in White Plains in winter?▾
Across 2019–2025, the median daily AQI in White Plains in winter was 55 (Moderate). 28.2% of days were Good, 71.5% Moderate, and 0.3% reached Unhealthy for Sensitive Groups or worse, based on 632 monitored days in EPA's Air Quality System.
Is winter a good time for outdoor exercise in White Plains?▾
A typical winter day in White Plains is Moderate (median AQI 55): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of winter days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes White Plains's winter air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 90.2% of winter days in White Plains. The highest winter AQI recorded in 2019–2025 was 127 (Unhealthy for Sensitive Groups), in 2019.
White Plains winter air quality, year by year
White Plains winter air quality by year (New York-Newark-Jersey City, NY-NJ-PA, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019worst | 90 | 56 | 1 | 103 | PM2.5 |
| 2020 | 91 | 55 | 1 | 127 | PM2.5 |
| 2021 | 90 | 55 | 0 | 87 | PM2.5 |
| 2022 | 90 | 57 | 0 | 97 | PM2.5 |
| 2023 | 90 | 56 | 0 | 91 | PM2.5 |
| 2024cleanest | 91 | 53 | 0 | 97 | PM2.5 |
| 2025 | 90 | 53 | 0 | 98 | PM2.5 |
What winter air means in White Plains
A typical winter day in White Plains is Moderate (median AQI 55): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of winter days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Winter's median AQI of 55 is in line with White Plains's whole-year median of 54, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median Winter AQI across every EPA metro area (278,620 metro-days, 2019–2025) is 40, so White Plains runs above the national Winter norm; 0.3% of its Winter days topped AQI 100 versus 0.6% nationally (about the same).
Within the season, January is the cleanest month (median AQI 55, 0.0% of days above 100) and February the worst (median 55, 0.5% above 100).
Activity-specific thresholds: running, cycling, kids' sports.
Right now in White Plains
The latest EPA AirNow observation puts White Plains's AQI at 45 (PM2.5). The figures above are multi-year season statistics, not today's reading.
View current White Plains air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (New York-Newark-Jersey City, NY-NJ-PA), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.