Metro area air quality · 2025
Wenatchee, WA
Median AQI 35 (Good). 69.6% of monitored days rated Good across this metro's EPA monitoring network.
- 35
- Median AQI
- 69.6%
- Good-air days
- 9
- Unhealthy days
- 44%
- Cleaner than US metros
Wenatchee, WA posted a 2025 median AQI of 35 (Good) with 69.6% Good days
According to the U.S. EPA Air Quality System, the Wenatchee, WA CBSA recorded a median AQI of 35 across 365 monitored days in 2025, with 69.6% rated Good and 9 unhealthy or worse. This is an annual metro comparison, not a live advisory.
Data source EPA Air Quality System (AQS)
- Cleaner than US metros
- The Wenatchee, WA CBSA's 69.6% Good-day share places it cleaner than 44% of US metros in 2025.
- Closest median-AQI peer
- Baraboo, WI (75.6% Good, median AQI 35) is the closest nationwide median-AQI peer to Wenatchee, WA.
- 2020–2025 Good-day shift
- Wenatchee, WA's Good-day share moved -5.4 points from 2020 to 2025 (median AQI +7).
- Median AQI
- Median AQI: 35
Aggregated from EPA Air Quality System (2025), 365 monitored days. EPA AQS →
The verdict
Wenatchee, WA's median AQI 35 is in the lower (cleaner) CBSA tercile on this site. On the EPA scale the metro runs good, more polluted than the median US metro, with a median AQI of 35 and 69.6% of 365 monitored days in the Good band.
- 35
- median AQI · Good
- 69.6%
- days rated Good
- 44%
- cleaner than US metros
- 233
- worst single reading
9 days reached Unhealthy or worse across the metro's monitors in 2025.
Annual release change
What changed in the 2025 EPA annual release
- Wenatchee, WA metro's Good-day share fell from 80.9% to 70.8% between the 2024 and 2025 EPA annual releases, a change of -10.2 percentage points.
- Wenatchee, WA metro's peak single-day AQI rose from 158 to 233 between the 2024 and 2025 EPA annual releases, a change of +75 points.
- Wenatchee, WA metro's Unhealthy-category days rose from 1 to 8 between the 2024 and 2025 EPA annual releases, a change of +7 days.
- Wenatchee, WA metro's median AQI rose from 28 to 35 between the 2024 and 2025 EPA annual releases, a change of +7 points.
Wenatchee, WA's median AQI 35 is in the lower (cleaner) CBSA tercile on this site. Signature read: median AQI 35 (low tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 35 over 365 measured days in 2025 (Good / Moderate). The monitored-day split lands at 254 Good (70%), 97 Moderate (27%), and 5 Unhealthy-for-Sensitive-Groups (1%). The 90th-percentile AQI finished at 68; the highest single-day reading hit 233 (Very Unhealthy).
Across 2020–2025, Good-day share shifted -5.4 points and median AQI moved +7 (worsening). The annual record contains 9 days at Unhealthy or worse. Metros with comparable AQI profiles include Baraboo, WI (75.6% good, AQI 35); Effingham, IL (95.5% good, AQI 35); Ithaca, NY (93.2% good, AQI 35).
Air Quality Summary
Median AQI
35
Good
Good Days
69.6%
254 of 365 days
Max AQI
233
Very Unhealthy
Health Grade
Moderate
90th pct: 68
AQI Day Breakdown (2025)
Distribution of 365 monitored days across EPA AQI categories.
Good
254
70%
Moderate
97
27%
USG
5
1%
Unhealthy
8
2%
Very Unhealthy
1
0%
Hazardous
0
0%
Health Impact Assessment
The Wenatchee, WA metro area's air quality is rated Moderate based on 69.6% good air days. There were 9 unhealthy days in 2025 when outdoor activity should be limited.
Air quality reached unhealthy levels on 9 days in 2025 (8 Unhealthy, 1 Very Unhealthy). Sensitive groups, including people with asthma, COPD, cardiovascular conditions, children, and adults over 65, should review the daily breakdown and follow local advisories.
Sensitive group advisory
People with asthma, COPD, heart disease, children, pregnant women, and adults 65+ should follow EPA AQI alerts daily and limit outdoor exertion when AQI exceeds 100. Real-time conditions: airnow.gov.
How does the Wenatchee, WA metro compare?
How Wenatchee, WA compares
5-Year Air Quality Trend
Air quality is worsening in the Wenatchee, WA metro. Highest Good-day share: 2024 (80.9%, 293 of 362 monitored days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 274 | 80 | 6 | 28 | 817 |
| 2021 | 279 | 81 | 3 | 31 | 195 |
| 2022 | 246 | 96 | 13 | 34 | 290 |
| 2023 | 280 | 80 | 2 | 34 | 266 |
| 2024 | 293 | 68 | 1 | 28 | 158 |
| 2025 | 254 | 97 | 8 | 35 | 233 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Wenatchee, WA (35).
Baraboo, WI
Median AQI 35 · 75.6% Good-day share
Effingham, IL
Median AQI 35 · 95.5% Good-day share
Ithaca, NY
Median AQI 35 · 93.2% Good-day share
Kinston, NC
Median AQI 35 · 97.5% Good-day share
Meridian, MS
Median AQI 35 · 94.6% Good-day share
Morehead City, NC
Median AQI 35 · 96.2% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Wenatchee, WA's 9 (independent of median AQI).
Bemidji, MN
9 unhealthy-or-worse days · median AQI 36
Deming, NM
9 unhealthy-or-worse days · median AQI 17
Brainerd, MN
8 unhealthy-or-worse days · median AQI 39
El Centro, CA
10 unhealthy-or-worse days · median AQI 64
Fairbanks, AK
10 unhealthy-or-worse days · median AQI 44
Fargo, ND-MN
7 unhealthy-or-worse days · median AQI 37
Frequently Asked Questions
What does AQI 35 mean for health? ▼
How many unhealthy air days does Wenatchee, WA have? ▼
What is the air quality in the Wenatchee, WA metro area? ▼
Is air quality in Wenatchee, WA getting better or worse? ▼
How does Wenatchee, WA compare to other metro areas? ▼
What is the 90th percentile AQI for Wenatchee, WA? ▼
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset for Wenatchee, WA, 2025. See our methodology for how AQI, median, and coverage figures are computed.
Read our methodology , how this data is sourced, computed, and verified.
Source: U.S. EPA Air Quality System (AQS) Annual AQI by CBSA summary, Wenatchee, WA · 2020–2025