Whitchurch Stouffville, Ontario, Canada Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

October Air Quality Analysis
Whitchurch Stouffville, Ontario, Canada

2025

AQI

Days

Days	2025
Oct. 1
Oct. 2
Oct. 3
Oct. 4
Oct. 5
Oct. 6
Oct. 7
Oct. 8
Oct. 9	6
Oct. 10	17
Oct. 11
Oct. 12
Oct. 13
Oct. 14
Oct. 15
Oct. 16
Oct. 17
Oct. 18
Oct. 19
Oct. 20
Oct. 21
Oct. 22
Oct. 23
Oct. 24
Oct. 25
Oct. 26
Oct. 27
Oct. 28
Oct. 29
Oct. 30
Oct. 31

AQI Trends: Highest and Lowest

Highest AQI recorded on

10th Oct 2025

17AQI

Lowest AQI recorded on

9th Oct 2025

6AQI

Same Day Analysis (10th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 17 of Good air quality on the same day.

Day & Night AQI Trend: 10th Oct - 11th Oct 2025
Whitchurch Stouffville, Ontario, Canada

AQI

Day

Night

7 AM10th Oct 2025

6 PM

6 AM11th Oct 2025

Day time

Avg. Highest Time

7AM10th Oct

64AQI

Avg. Lowest Time

10AM10th Oct

4AQI

Night time

Avg. Highest Time

2AM11th Oct

66AQI

Avg. Lowest Time

7PM10th Oct

19AQI

In the last 24 hours,

Whitchurch Stouffville's AQI reached its highest point of 66 at 2 AM during the Night, while the lowest point, 4, was recorded at 10 AM during the Day between 10th Oct and 11th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025
Whitchurch Stouffville, Ontario, Canada

SepOct

11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th

Day

Night

--°C/°C

8°C2/14°C

10°C2/20°C

7 AM

12 PM

6 PM

12 AM

6 AM

--°C/°C

Day time

Avg. Highest Time

7 AM

58AQI

1 hours / Day

30 hours / Month

Avg. Lowest Time

12 PM - 2 PM

6AQI

3 hours / Day

90 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 7 AM to 7 AM (Avg. 58), while the lowest AQI was between 12 PM to 2 PM (Avg. 6).

Night time

Avg. Highest Time

6 AM

45AQI

1 hours / Day

30 hours / Month

Avg. Lowest Time

7 PM - 8 PM

15AQI

2 hours / Day

60 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 AM (Avg. 45), while the lowest AQI was between 7 PM to 8 PM (Avg. 15).

2025 Days Vs Air Quality
Whitchurch Stouffville, Ontario, Canada

2025

100%

Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)

Good

2 Days

Moderate

0 Days

Poor

0 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 100%

Health Risk Level:

Very Low

In 2025, 100% of 284 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights
Whitchurch Stouffville, Ontario, Canada

AQI levels in 2025

AQI

PM2.5

PM10

SO2

NO2

Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

12AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202512AQI

Highest AQI recorded in

October

12AQI

Lowest AQI recorded in

October

12AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded

2025(Avg.)

12AQI

Least Polluted Year Recorded

2025(Avg.)

12AQI

Whitchurch Stouffville's annual 2025 AQI (12) shows an average percentage change of NaN% (improved AQI) compared to previous years: .


7 AM	64
8 AM	15
9 AM	5
10 AM	4
11 AM	13
12 PM	11
1 PM	11
2 PM	12
3 PM	12
4 PM	12
5 PM	17
6 PM	16
7 PM	19
8 PM	23
9 PM	44
10 PM	36
11 PM	50
12 AM	57
1 AM	55
2 AM	66
3 AM	61
4 AM	55
5 AM	37
6 AM	49

Whitchurch Stouffville, Ontario, Canada Historical Air Quality Analysis

October Air Quality AnalysisWhitchurch Stouffville, Ontario, Canada

Day & Night AQI Trend: 10th Oct - 11th Oct 2025Whitchurch Stouffville, Ontario, Canada

Day & Night AQI Trend : Sep - Oct 2025Whitchurch Stouffville, Ontario, Canada

2025 Days Vs Air Quality Whitchurch Stouffville, Ontario, Canada

Annual Air Quality InsightsWhitchurch Stouffville, Ontario, Canada

AQI levels in 2025

No. of days

October Air Quality Analysis
Whitchurch Stouffville, Ontario, Canada

Day & Night AQI Trend: 10th Oct - 11th Oct 2025
Whitchurch Stouffville, Ontario, Canada

Day & Night AQI Trend : Sep - Oct 2025
Whitchurch Stouffville, Ontario, Canada

2025 Days Vs Air Quality
Whitchurch Stouffville, Ontario, Canada

Annual Air Quality Insights
Whitchurch Stouffville, Ontario, Canada