September 2026 Summary

A warm and dry September after a very wet start

After a warm start, in fact it was over 30°C on the first day of the month, most of the rest of September stayed just a bit above average.  There was a cooler week in the middle and the month ended with some more temperatures in the mid-20s.  Overall, it was a little over 0.7 degrees above average which puts it just into the above average range.

September started out very wet with 55.0 mm of rain falling on the second and then only 4.2 mm coming down the rest of the month.  In the over 25 year history of the Soulis Memoiral Weather Station, there has ever been one day that has accounted for so much of a month’s total precipitation.  That one day’s rain was 93% of the total for the month, the next highest on record at the station was 79% during September 2004.  

The total precipitation of 59.2 mm is less than the average of 72.1 mm, which put it in the below average range.  Even with this drier than average month the total precipitation so far this year of 799.9 mm stayed well above the average of 683.5 mm.

Summary for September 2026:

Maximum Temperature 30.4°C
Minimum Temperature 1.7°C
Average Daily High Temperature 22.8°C (Long term average 22.3°C)
Average Daily Low Temperature 11.2°C (Long term average 10.4°C)
Total Precipitation 59.2 mm (Long term average 72.1 mm)

(Long term averages based on 1998-2025 data from the Soulis Memorial Weather Station at the University of Waterloo)

August 2026 Summary

A very wet month with very average temperature

The temperature was incredibly consistent with only a handful of days here and there that were more than a few degrees off of the average.  Not surprisingly this resulted in the overall temperature being exactly average for August.

The month got off to a very wet start with 47.6 mm coming down on the second day.  It was then consistently pretty wet throughout the rest of the month with a few more very rainy days near the end.  

Overall, the total for August was 139.7 mm, more than twice the average 66.2 mm.  This is the second wettest August in the almost 30 year history of the E.D. Soulis Memorial Weather Station.  The wet month also put the total precipitation so far in 2026 (740.7 mm) well above the average (596.0 mm).  

The statistics for the meteorological summer (June-July-August) were that the temperature was just 0.6 degrees above average and the total precipitation of 319.3 mm was well above the average of 221.0 mm.

Summary for August 2026:

Maximum Temperature 29.2°C

Minimum Temperature 8.9°C

Average Daily High Temperature 25.4°C (Long term average 25.6°C)

Average Daily Low Temperature 14.3°C (Long term average 14.1°C)

Total Precipitation 139.7 mm (Long term average 66.2 mm)

(Long term averages based on 1998-2025 data from the Soulis Memorial Weather Station at the University of Waterloo)

July 2026 Summary

A hot July with average precipitation

The month started out really warm, with the average high for the first 14 days coming in at almost 30°C.  The second half was a not quite as hot, resulting in the overall temperature being one degree above average.  Also, if it wasn’t for a couple of days in June of last year, the 34.2°C on the 14th would have been the warmest temperature in the region since July of 2000.

There were only 7 days of precipitation during July, this is the least since 2001.  However, there were two really wet days (23.2 mm on the 9th and 47.4 mm on the 21st) so the total of 77.6 mm was only a bit below the average of 83.7 mm and within the average range.

Even with this month being less than average, the total precipitation so far in 2026 of 601.0 mm stayed above the average of 509.0 mm.  

Summary for August 2026:

Maximum Temperature 34.2°C
Minimum Temperature 8.4°C
Average Daily High Temperature 27.7°C (Long term average 26.6°C)
Average Daily Low Temperature 16.0°C (Long term average 14.9°C)
Total Precipitation 77.6 mm (Long term average 83.7 mm)

(Long term averages based on 1998-2025 data from the Soulis Memorial Weather Station at the University of Waterloo)

June 2025 Summary

June was wet with average temperatures 

There were a few hot spells in June along with a few cooler spells, while the warmest day came at the end of the month.  All of this resulted in an overall temperature just 0.2 degrees above average, well within the average range.

An interesting reset came when the temperature started at 27.3°C in the afternoon on the 13th and went down almost continually until the morning of the 15th reaching a low of 8.1°C. 

The two wettest days of the month were the 17th and 18th when 13.2 mm and 29.6 mm of rain came down.  This helped to put the total for the month of 102.0 mm ,well above the average of 71.0 mm.  It also resulted in the total precipitation we have seen in the first half of the year of 523.4 mm going even further above than the average total of 416.1 mm.

Summary for June 2026:
Maximum Temperature 32.5°C
Minimum Temperature 6.6°C
Average Daily High Temperature 24.5°C (Long term average 24.2°C)
Average Daily Low Temperature 12.8°C (Long term average 12.7°C)
Total Precipitation 102.0 mm (Long term average 71.0 mm)

(Long term averages based on 1998-2025 data from the Soulis Memorial Weather Station at the University of Waterloo)

May 2026 Summary

A dry and cold May 

It was cold for the first half of the month followed by a few hot days in the second half.  But these hot days couldn’t make up for the proceeding cold and the overall temperature was more than a degree below average.  This made it the coldest May since 2020.

The temperature last went below zero on May 12, which is about 5 days later than the average date in the history of the Soulis memorial weather station. 

The only really wet day in May was the 25.6 mm on the 23rd, apart from that there was only one more day of more than 10 mm.  Consequently, the total for the month was only 55.2 mm, which is much lower than the average of 73.1 mm.

After a few wet months, this dry month brought the total for the year at 421.4 mm, closer to the average of 340.2 mm.

Summary for May 2026:
Maximum Temperature 29.1°C
Minimum Temperature -1.5°C
Average Daily High Temperature 17.7°C (Long term average 19.2°C)
Average Daily Low Temperature 6.5°C (Long term average 7.3°C)
Total Precipitation 55.2 mm (Long term average 73.1 mm)

(Long term averages based on 1998-2025 data from the Soulis Memorial Weather Station at the University of Waterloo)