Springfield, MA Air Quality in July

Across 2019–2025, Springfield's July air quality had a median AQI of 48 (Good) over 217 monitored days in the Springfield, MA area. 1.8% of July days (4 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 59.9% of days. The cleanest July on record here was 2022 (median AQI 45, 0 days above 100) and the worst was 2023 (median 54, 1 day above 100, peak AQI 150).

48
Median AQI
Good
1.8%
Days above AQI 100
4 of 217 days
76
90th percentile AQI
worst 1 day in 10
150
Peak AQI
Unhealthy for Sensitive Groups
PM2.5
Main pollutant
59.9% of days
53.0%
Good days
115 of 217
  • Good: 53.0%
  • Moderate: 45.2%
  • Unhealthy for Sensitive Groups: 1.8%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Springfield in July?

Good on a typical day: median AQI 48 across 2019–2025, with 1.8% of July days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 53.0% of July days were Good (AQI 0–50), 45.2% Moderate (51–100).
  • 4 days of 217 reached AQI 101+; the July peak was 150.
  • Best July: 2022; worst July: 2023.

Frequently asked questions

What is the air quality like in Springfield in July?

Across 2019–2025, the median daily AQI in Springfield in July was 48 (Good). 53.0% of days were Good, 45.2% Moderate, and 1.8% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.

Is July a good time for outdoor exercise in Springfield?

A typical July day in Springfield sits in the Good range (median AQI 48), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 56 of July days (1.8%) reached AQI 101+ in 2019–2025.

Which pollutant causes Springfield's July air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 59.9% of July days in Springfield. The highest July AQI recorded in 2019–2025 was 150 (Unhealthy for Sensitive Groups), in 2023.

Springfield July air quality, year by year

Springfield July air quality by year (Springfield, MA, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193151093PM2.5
20203148077PM2.5
202131511116PM2.5
2022cleanest3145090O3
2023worst31541150PM2.5
202431451108O3
202531481122O3

What July air means in Springfield

A typical July day in Springfield sits in the Good range (median AQI 48), so running, cycling and children's outdoor play are fine for everyone on most days; about 1 day in 56 of July days (1.8%) reached AQI 101+ in 2019–2025.

July's median AQI of 48 is above Springfield's whole-year median of 44, making it one of the area's dirtier periods. Nationally, the median July AQI across every EPA metro area (103,858 metro-days, 2019–2025) is 47, so Springfield runs in line with the national July norm; 1.8% of its July days topped AQI 100 versus 3.6% nationally (below average).

July is part of Springfield's summer season (June, July, August); the summer page pools all three months.

Activity-specific thresholds: running, cycling, kids' sports.

Right now in Springfield

The latest EPA AirNow observation puts Springfield's AQI at 33 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current Springfield air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Springfield, MA), 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.