| Station | Year | Mean AQHI | Maximum AQHI | Date of Maximum | Hours ≥ 7 | Sustained High Episodes1 | Sustained High Hours | Sustained Low Episodes1 | Sustained Low Hours | % Low (1–3) | % Moderate (4–6) | % High (7–10) | % Very High (10+) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAS Drayton Valley | 2025 | 2.5 | 9 | Jun 10, 2025 23:00 | 12 | 3 | 12 | 97 | 7716 | 93.6 | 6.2 | 0.1 | 0 |
| WCAS Genesee | 2025 | 2.2 | 10+ | Sep 01, 2025 18:00 | 13 | 2 | 10 | 48 | 7851 | 95.7 | 4.2 | 0.1 | 0 |
| Jasper | 2025 | 2.1 | 10+ | Oct 06, 2025 15:00 | 39 | 5 | 36 | 17 | 8185 | 97.8 | 1.7 | 0.5 | 0 |
| WCAS Edson | 2025 | 2.1 | 8 | Jun 11, 2025 00:00 | 20 | 2 | 20 | 38 | 7970 | 97.1 | 2.7 | 0.2 | 0 |
| WCAS Hinton-Hillcrest | 2025 | 2.1 | 7 | Jun 10, 2025 23:00 | 14 | 3 | 11 | 20 | 8073 | 97.7 | 2.1 | 0.2 | 0 |
| WCAS Hinton-Drinnan | 2025 | 2.0 | 7 | Jun 11, 2025 10:00 | 14 | 3 | 14 | 20 | 7807 | 97.9 | 1.9 | 0.2 | 0 |
| WCAS Steeper | 2025 | 2.0 | 10+ | Sep 03, 2025 13:00 | 9 | 2 | 8 | 17 | 8060 | 98.3 | 1.6 | 0.1 | 0 |
| 1 Sustained episodes are defined as ≥3 consecutive hours in the AQHI category. | |||||||||||||
| Station | Annual Mean (µg/m³) | Maximum Hour (µg/m³) | Date of Maximum | 98th Percentile (µg/m³) | Uptime (%) | Hours > 80 µg/m³ | Days > 29 µg/m³ | Dominant Wind (Elevated Hours)1 |
|---|---|---|---|---|---|---|---|---|
| WCAS Genesee | 8.7 | 183.6 | Sep 01, 2025 17:00 | 42.1 | 98.8 | 27 | 9 | NE |
| WCAS Drayton Valley | 8.2 | 164.2 | Jun 10, 2025 22:00 | 35.8 | 99.6 | 20 | 7 | ESE |
| WCAS Hinton-Drinnan | 7.7 | 117.0 | Sep 03, 2025 19:00 | 39.4 | 99.7 | 39 | 11 | NE |
| WCAS Edson | 7.3 | 132.0 | Jun 11, 2025 06:00 | 40.5 | 99.6 | 38 | 10 | N |
| WCAS Hinton-Hillcrest | 6.3 | 114.8 | Jun 11, 2025 09:00 | 37.8 | 99.7 | 39 | 11 | ENE |
| Jasper | 5.9 | 99.2 | Jun 11, 2025 10:00 | 36.7 | 98.7 | 13 | 9 | SW |
| WCAS Steeper | 4.2 | 196.5 | Sep 03, 2025 12:00 | 33.0 | 98.5 | 21 | 8 | SE |
| 1 Elevated hours defined as top 10% of hourly concentrations; wind direction calculated using a pollution-weighted vector mean | ||||||||
| Station | Annual Mean (ppb) | Maximum Hour (ppb) | Date of Maximum | 98th Percentile (ppb) | Uptime (%) | Hours > 159 ppb | Dominant Wind (Elevated Hours)1 |
|---|---|---|---|---|---|---|---|
| WCAS Drayton Valley | 7.3 | 52.4 | Feb 21, 2025 23:00 | 28.6 | 94.3 | 0 | S |
| Jasper | 6.2 | 37.0 | Feb 18, 2025 20:00 | 22.8 | 91.5 | 0 | SW |
| WCAS Hinton-Drinnan | 6.0 | 35.8 | Feb 20, 2025 08:00 | 21.2 | 90.7 | 0 | SE |
| WCAS Edson | 5.9 | 37.3 | Jan 09, 2025 21:00 | 23.6 | 94.4 | 0 | SW |
| WCAS Hinton-Hillcrest | 4.4 | 53.9 | Oct 22, 2025 11:00 | 20.6 | 94.6 | 0 | ESE |
| WCAS Carrot Creek | 3.6 | 37.5 | Feb 06, 2025 20:00 | 15.4 | 90.4 | 0 | SSE |
| WCAS Wagner2 | 3.4 | 83.0 | Jan 27, 2025 12:00 | 15.3 | 94.7 | 0 | SW |
| WCAS Genesee | 3.2 | 41.4 | Feb 12, 2025 23:00 | 12.2 | 94.6 | 0 | S |
| WCAS Breton | 2.8 | 33.0 | Dec 17, 2025 03:00 | 10.4 | 91.1 | 0 | S |
| WCAS Meadows | 2.7 | 31.8 | Jan 03, 2025 00:00 | 10.4 | 94.7 | 0 | SE |
| WCAS Steeper | 0.9 | 18.7 | Nov 06, 2025 07:00 | 6.0 | 94.5 | 0 | E |
| 1 Elevated hours defined as top 10% of hourly concentrations; wind direction calculated using a pollution-weighted vector mean | |||||||
| Station | Annual Mean (ppb) | Maximum Hour (ppb) | Date of Maximum | 98th Percentile (ppb) | Uptime (%) | Hours > 76 ppb | Dominant Wind (Elevated Hours)1 |
|---|---|---|---|---|---|---|---|
| WCAS Steeper | 33.4 | 63.0 | Jun 09, 2025 13:00 | 51.4 | 94.5 | 0 | SW |
| WCAS Breton | 29.0 | 64.5 | Aug 27, 2025 16:00 | 51.8 | 91.4 | 0 | SW |
| WCAS Genesee | 28.9 | 73.8 | Sep 01, 2025 16:00 | 52.2 | 94.8 | 0 | SSE |
| WCAS Drayton Valley | 28.3 | 65.1 | May 28, 2025 18:00 | 53.7 | 94.3 | 0 | ESE |
| WCAS Hinton-Hillcrest | 27.7 | 65.6 | Jun 09, 2025 18:00 | 51.3 | 94.6 | 0 | WSW |
| WCAS Carrot Creek | 25.5 | 59.6 | May 28, 2025 20:00 | 49.9 | 94.8 | 0 | NW |
| WCAS Edson | 24.6 | 58.6 | Jun 11, 2025 18:00 | 49.9 | 92.5 | 0 | NW |
| Jasper | 23.8 | 63.7 | Jun 09, 2025 14:00 | 50.2 | 94.4 | 0 | SW |
| WCAS Hinton-Drinnan | 21.1 | 66.3 | Jun 09, 2025 16:00 | 49.4 | 94.5 | 0 | W |
| 1 Elevated hours defined as top 10% of hourly concentrations; wind direction calculated using a pollution-weighted vector mean | |||||||
| Station | Annual Mean (ppb) | Maximum Hour (ppb) | Date of Maximum | 98th Percentile (ppb) | Uptime (%)1 | Hours > 172 ppb | Days > 48 ppb | Months > 11 ppb | Dominant Wind (Elevated Hours)2 |
|---|---|---|---|---|---|---|---|---|---|
| WCAS Hinton-Drinnan | 0.4 | 13.4 | Mar 19, 2025 14:00 | 3.1 | 90.5 | 0 | 0 | 0 | SW |
| WCAS Genesee | 0.2 | 60.7 | Sep 01, 2025 17:00 | 1.1 | 94.4 | 0 | 0 | 0 | SE |
| WCAS Wagner2 | 0.2 | 4.8 | Dec 24, 2025 16:00 | 1.0 | 94.8 | 0 | 0 | 0 | SSE |
| WCAS Breton | 0.1 | 40.4 | Sep 01, 2025 18:00 | 0.8 | 94.7 | 0 | 0 | 0 | SE |
| WCAS Meadows | 0.1 | 6.1 | Feb 04, 2025 15:00 | 1.0 | 90.6 | 0 | 0 | 0 | ESE |
| WCAS Drayton Valley | 0.1 | 9.3 | Aug 29, 2025 16:00 | 0.7 | 94.3 | 0 | 0 | 0 | SSE |
| WCAS Hinton-Hillcrest | 0.1 | 9.6 | Feb 17, 2025 13:00 | 0.7 | 91.9 | 0 | 0 | 0 | ESE |
| Jasper | 0.1 | 2.3 | Aug 29, 2025 15:00 | 0.8 | 76.1 | 0 | 0 | 0 | S |
| WCAS Steeper | 0.1 | 9.4 | Aug 28, 2025 20:00 | 0.6 | 94.5 | 0 | 0 | 0 | SE |
| WCAS Edson | 0.1 | 69.6 | Aug 28, 2025 13:00 | 0.4 | 90.8 | 0 | 0 | 0 | SE |
| WCAS Carrot Creek | 0.0 | 18.4 | Aug 28, 2025 13:00 | 0.5 | 91.5 | 0 | 0 | 0 | SSW |
| 1 Jasper SO2 was decomissioned in October 2025 | |||||||||
| 2 Elevated hours defined as top 10% of hourly concentrations; wind direction calculated using a pollution-weighted vector mean | |||||||||
| 2025 Annual Meteorology Summary | ||||||||||
| Wind and Temperature Statistics (Hourly Data) | ||||||||||
| Site | Dominant Wind | Max 1-hr Wind (km/hr) | Date | Coldest (°C) | Date | Warmest (°C) | Date | Mean Wind | 95th % Wind | Mean Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|---|
| Jasper | WSW | 20.6 | Tue, Feb 4, 2025 | −33.2 | Wed, Feb 5, 2025 | 31.4 | Wed, Jul 30, 2025 | 5.3 | 11.0 | 4.2 |
| WCAS Breton | SE | 44.8 | Thu, Jan 16, 2025 | −35.4 | Mon, Feb 3, 2025 | 31.2 | Wed, Aug 27, 2025 | 7.7 | 19.6 | 4.1 |
| WCAS Carrot Creek | W | 38.0 | Fri, Apr 11, 2025 | −35.2 | Wed, Feb 5, 2025 | 29.9 | Thu, Aug 28, 2025 | 7.7 | 18.3 | 3.4 |
| WCAS Drayton Valley | S | 43.6 | Thu, Jan 16, 2025 | −31.2 | Wed, Feb 5, 2025 | 29.5 | Thu, May 29, 2025 | 7.7 | 17.8 | 4.6 |
| WCAS Edson | W | 26.7 | Sun, Nov 2, 2025 | −34.5 | Wed, Feb 5, 2025 | 31.2 | Thu, Aug 28, 2025 | 6.6 | 14.5 | 3.8 |
| WCAS Genesee | SW | 56.4 | Thu, Jan 16, 2025 | −31.4 | Tue, Feb 18, 2025 | 38.3 | Thu, May 29, 2025 | 12.1 | 25.9 | 6.4 |
| WCAS Hinton-Drinnan | SW | 19.8 | Mon, Jan 20, 2025 | −34.9 | Wed, Feb 5, 2025 | 30.1 | Wed, Aug 27, 2025 | 3.7 | 9.6 | 3.1 |
| WCAS Hinton-Hillcrest | SW | 34.2 | Thu, Feb 27, 2025 | −33.1 | Wed, Feb 5, 2025 | 29.3 | Wed, May 28, 2025 | 9.0 | 21.5 | 3.8 |
| WCAS Meadows | WSW | 48.2 | Thu, Jan 16, 2025 | −32.5 | Wed, Feb 5, 2025 | 31.0 | Thu, May 29, 2025 | 10.7 | 22.9 | 4.7 |
| WCAS Steeper | SSW | 41.1 | Thu, Feb 27, 2025 | −33.2 | Mon, Feb 3, 2025 | 27.6 | Wed, May 28, 2025 | 7.6 | 17.7 | 2.7 |
| WCAS Wagner2 | WNW | 23.5 | Thu, Jan 16, 2025 | −34.0 | Mon, Feb 10, 2025 | 32.6 | Thu, Aug 28, 2025 | 4.6 | 13.1 | 4.4 |
| 2025 vs Historical Records | |||||||||||
| Wind and Temperature Extremes Comparison | |||||||||||
|
Wind
|
Minimum Temperature
|
Maximum Temperature
|
Wind Record Stat | Cold Record Stat | Warm Record Stat | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 Max | Historical Max | Difference | 2025 Min | Historical Min | Difference | 2025 Max | Historical Max | Difference | |||
| Jasper | |||||||||||
| 20.6 | 20.6 | 0.0 | −33.2 | −33.2 | 0.0 | 31.4 | 31.4 | 0.0 | NEW RECORD | NEW RECORD | NEW RECORD |
| WCAS Breton | |||||||||||
| 44.8 | 44.8 | 0.0 | −35.4 | −40.0 | 4.6 | 31.2 | 35.7 | −4.5 | NEW RECORD | ||
| WCAS Carrot Creek | |||||||||||
| 38.0 | 57.0 | −19.0 | −35.2 | −40.1 | 4.8 | 29.9 | 37.7 | −7.7 | |||
| WCAS Drayton Valley | |||||||||||
| 43.6 | 55.5 | −11.9 | −31.2 | −39.4 | 8.2 | 29.5 | 35.4 | −5.9 | |||
| WCAS Edson | |||||||||||
| 26.7 | 39.0 | −12.3 | −34.5 | −45.2 | 10.7 | 31.2 | 39.1 | −7.9 | |||
| WCAS Genesee | |||||||||||
| 56.4 | 60.8 | −4.4 | −31.4 | −42.5 | 11.1 | 38.3 | 42.5 | −4.3 | |||
| WCAS Hinton-Drinnan | |||||||||||
| 19.8 | 22.7 | −2.9 | −34.9 | −38.7 | 3.8 | 30.1 | 40.5 | −10.4 | |||
| WCAS Hinton-Hillcrest | |||||||||||
| 34.2 | 43.0 | −8.9 | −33.1 | −39.4 | 6.3 | 29.3 | 34.3 | −4.9 | |||
| WCAS Meadows | |||||||||||
| 48.2 | 51.0 | −2.8 | −32.5 | −43.1 | 10.5 | 31.0 | 36.9 | −5.9 | |||
| WCAS Steeper | |||||||||||
| 41.1 | 56.7 | −15.6 | −33.2 | −40.0 | 6.8 | 27.6 | 38.2 | −10.5 | |||
| WCAS Wagner2 | |||||||||||
| 23.5 | 32.0 | −8.5 | −34.0 | −39.9 | 5.9 | 32.6 | 37.5 | −4.9 | |||
| Historical Meteorological Extremes by Station | ||||||
| All Available Years of Record | ||||||
| Station |
Wind
|
Minimum Temperature
|
Maximum Temperature
|
|||
|---|---|---|---|---|---|---|
| Highest 1-hr Wind (km/hr) | Date & Hour | Coldest (°C) | Date & Hour | Warmest (°C) | Date & Hour | |
| Jasper | 20.6 | Tue, Feb 4, 2025 00:00 | −33.2 | Wed, Feb 5, 2025 09:00 | 31.4 | Wed, Jul 30, 2025 19:00 |
| WCAS Breton | 44.8 | Thu, Jan 16, 2025 19:00 | −40.0 | Sat, Feb 2, 2008 07:00 | 35.7 | Tue, Jun 29, 2021 16:00 |
| WCAS Carrot Creek | 57.0 | Thu, Jul 2, 2009 21:00 | −40.1 | Wed, Jan 15, 2020 04:00 | 37.7 | Tue, Jun 29, 2021 16:00 |
| WCAS Drayton Valley | 55.5 | Fri, Jun 24, 2022 12:00 | −39.4 | Sun, Jan 14, 2024 10:00 | 35.4 | Tue, Jun 29, 2021 16:00 |
| WCAS Edson | 39.0 | Fri, Jan 30, 2009 16:00 | −45.2 | Tue, Jan 29, 2008 05:00 | 39.1 | Tue, Jun 29, 2021 17:00 |
| WCAS Genesee | 60.8 | Wed, Jan 15, 2014 08:00 | −42.5 | Sat, Jan 13, 2024 09:00 | 42.5 | Tue, Jun 29, 2021 16:00 |
| WCAS Hinton-Drinnan | 22.7 | Thu, Jan 20, 2022 09:00 | −38.7 | Fri, Jan 12, 2024 10:00 | 40.5 | Wed, Jun 30, 2021 16:00 |
| WCAS Hinton-Hillcrest | 43.0 | Thu, Oct 27, 2022 09:00 | −39.4 | Fri, Jan 12, 2024 08:00 | 34.3 | Tue, Jul 9, 2024 18:00 |
| WCAS Meadows | 51.0 | Sun, May 15, 2011 14:00 | −43.1 | Sat, Jan 13, 2024 06:00 | 36.9 | Wed, Jun 30, 2021 16:00 |
| WCAS Steeper | 56.7 | Fri, Dec 18, 2020 22:00 | −40.0 | Mon, Apr 27, 2009 03:00 | 38.2 | Wed, Jun 30, 2021 15:00 |
| WCAS Wagner2 | 32.0 | Sat, May 14, 2011 14:00 | −39.9 | Sun, Dec 13, 2009 06:00 | 37.5 | Wed, Jul 10, 2024 17:00 |