It’s here. It’s finally here.
AUGUST
August began with a heat wave, before we returned to “The Pattern,” with short periods of warm and cold, and lots of rain. There was a specially potent cold wave for the 13th through the 15th, which brought a high of 13.1 on the 15th. That was about the temperature it was yesterday. However, that day it was rainy and windy, so (not including that fact that we were used to much warmer temperatures) it felt something like Tuesday. Maybe even Monday. For the last part of the month though, we had a big heat wave, where temperatures soared to the highest temperature this year – 33.3.
Here are some stats:
| Value | Compared to last 5 years | Compared to last 30 years | |
| Temperature | Mean 19.1 Highest 33.3 Lowest 7.8 | ~0.5 degrees above | ~1.5 degrees above |
| Precipitation | 28.4 mm | ~10 mm below | ~20 mm below |
| Humidity | Mean 64% Highest 99% Lowest 20% | ||
| Dew point | Mean 11.1 Highest 17.2 Lowest 3.1 | ~0.75 degrees above | ~1.5 degrees above |
| Humidex | Highest 34 | ||
| Wind | Mean 8.2 Highest 33 Lowest 0 | ~1 km/h below | Near normal |
| Gusts | Highest 57 | ||
| Smoke | Median ~30 AQI, 2.5 AQHI | ||
| Moisture | Mean ~23 kg/m² | ~2 kg/m² above | Near normal |
| Cloud cover | Mean ~65% | Near normal | ~4% above |
| Pressure | Mean 1015.5 Highest 1029.6 Lowest 1006 | ~1.5 hPa above | ~1.5 hPa above |
Here’s some more:
- Number of days with precipitation >0.2 mm – 10
- Number of days with precipitation >25 mm – 0
- Number of days with temperature <-20°C – 0
- Number of days with temperature <0°C – 0
- Number of days with temperature >30°C – 8
- Number of days with humidex >30°C – 9
- Number of days with humidex >35°C – 0
- Number of days with humidex >40°C – 0
- Number of days with wind chill <-30°C – 0
- Number of days with wind chill <-35°C – 0
- Number of days with wind chill <-40°C – 0
- Number of days with AQHI >4 – 11
- Number of days with AQHI >7 – 2
- Number of days with AuroraWatch yellow alert: 4
- Number of days with AuroraWatch red alert: 1
Records:
- Record high of 32.2 on Aug 26, beating 32 from 1981
- Record high of 33.3 on Aug 27, beating 31.1 from 1934
- Record humidity of 20% on Aug 27, beating 24% from 2017
- Record high of 32.8 on Aug 28, beating 31.7 from 1933
- Record high of 33.1 on Aug 29, beating 32.2 from 2023
- Record humidity of 21% on Aug 29, beating 24% from 2023
SEPTEMBER
At the start of September, there was evidence of the heat wave ending, but that didn’t happen for a while. The jet stream flow stayed very blocked, and we ended up in a heat wave for about 3 quarters of the month. In the last week, there was some cooler weather, but overall nothing substantial. This means the month as a whole ended up VERY above normal for temperatures. As well, very little precipitation occurred, with a sprinkle on the 21st, and some light showers not even accumulating a mm on the last day of the month.
Here are some stats:
| Value | Compared to last 5 years | Compared to last 30 years | |
| Temperature | Mean 16.1 Highest 29.4 Lowest 1.5 | ~2 degrees above | ~3.5 degrees above |
| Precipitation | 0.9 mm | ~15 mm below | ~30 mm below |
| Humidity | Mean 56% Highest 98% Lowest 21% | ||
| Dew point | Mean 6.2 Highest 14.3 Lowest -4.9 | ~0.75 degrees above | ~1.5 degrees above |
| Humidex | Highest 30 | ||
| Wind | Mean 7.4 Highest 32 Lowest 0 | ~1 km/h below | ~1.5 km/h below |
| Gusts | Highest 51 | ||
| Smoke | Median ~60 AQI, 3.6 AQHI | ||
| Moisture | Mean ~17 kg/m² | ~2 kg/m² above | ~3 kg/m² above |
| Cloud cover | Mean ~28% | ~12% above | ~15% above |
| Pressure | Mean 1014 Highest 1027.2 Lowest 999.9 | Near normal | Near normal |
Here’s some more:
- Number of days with precipitation >0.2 mm – 2
- Number of days with precipitation >25 mm – 0
- Number of days with temperature <-20°C – 0
- Number of days with temperature <0°C – 0
- Number of days with temperature >30°C – 0
- Number of days with humidex >30°C – 1
- Number of days with humidex >35°C – 0
- Number of days with humidex >40°C – 0
- Number of days with wind chill <-30°C – 0
- Number of days with wind chill <-35°C – 0
- Number of days with wind chill <-40°C – 0
- Number of days with AQHI >4 – 19
- Number of days with AQHI >7 – 9
- Number of days with AuroraWatch yellow alert: 2
- Number of days with AuroraWatch red alert: 4
Records:
- Record high of 29 on Sep 13, beating 28.9 from 1923
- Record humidity of 24% on Sep 13, beating 26% from 2009
- Record dew point of 14.2 Sep 14, beating 13.6 from 1996
- Record humidity of 21% on Sep 16, beating 22% from 1961
- Record low of 13 on Sep 17, beating 11.8 from 2000
- Record low of 12 on Sep 18, beating 11.7 from 2000
Well, that took quite a while to make. Thanks for reading!