Steven Flisfeder

2/
total rain: 218.5 (46th, record 511.3 2024)

of note, the 11 day dry spell Aug 1-11 ties 7th longest August streak with not even trace rainfall, and ties 28th overall longest streak

#ONwx #ONstorm

1/ Welcome #meteorologicalautumn 🍂
Here's a meteorological summer (JJA) roundup for #YYZ:
avg max T: 27.3 (tied 11th multiple years, record 28.7 1949)
avg min T: 16.8 (6th, record 17.6 2005)
avg mean T: 22.1 (tied 6th multiple years, record 23.1 2005)

#ONWx #ONstorm

Ottawa Airport #YOW currently on day 10 with no precip reported.

Summer (JJA) total so far of 113.5mm is well below the climatological (1991-2020) norm of 264.5mm. On pace to be one of the driest summers on record
#ONwx #ONstorm

As of 8PM, there have been 32 #smoke hours at #YOW recorded so far this August (FU & <=6SM) tying for 3rd smokiest month on record with August 1955.

Still a far ways from the record of 137 hours in June 2023 (POR 1953-present)
#ONwx #ONstorm

3/
Temperatures were at or above 30C 13 times through the month, tying for 11th most (multiple years), the record 19 times occurred in 1955
#ONwx #ONstorm

2/
total rainfall: 96.1mm (26th, record 215.4 in 2024)

no daily records set in July this year for temperatures or precipitation

#ONwx #ONstorm

1/ July roundup for #YYZ
avg max T: 29.4C (9th, record 31 in 1955)
avg min T: 18.4C (5th, record 19.5 in 2020)
avg mean T: 23.9C (8th, record 25 in 2020)
#ONwx #ONstorm

Happy St Swithun's Day to all who celebrate

#YUL had been fairly close to climatological norm leading up to yesterday, but has now deviated a fair bit
#QCStorm

Pierre Elliott Trudeau Airport #YUL set a July daily rainfall record yesterday with 81.6mm reported, beating the previous July record of 79.2mm set July 10 2024, when the city received heavy rain from the remnants of TC Beryl
#QCstorm

With a max of 35.5C, today is (preliminarily) the warmest June day on record at #YUL Previous record 35C June 30 1964 (POR 1942-present)

#QCstorm #meteoQC #hot

Max of 34.9C as of 5PM at #YUL, putting it at 2nd highest June temperature, just 0.1C short of the record 35C set June 30 1964
#meteoQC #QCstorm

With a max of 36C as of 5PM, #YYZ has now tied for 4th highest June temperature on record (w/ Jun 25 1988). Record is 36.7C set Jun 25 1952

#ONstorm #ONwx #hot

With a low of 24.8C, yesterday (Jun 22 2025) is now the highest minimum June temperature on record for #YYZ (POR 1938-present), and the 6th all-time warmest minimum temperature (record 26.3C Aug 1 2006)

#ONstorm #ONwx #hot

Today’s 3PM humidex of 46 now ties for highest June humidex on record for #YYZ

#ONstorm #ONwx #oppressiveheat 🥵

The #heat is on 🥵
12PM humidex of 44 at #YYZ ties for third highest June humidex by the noon hour, record 45 2-way Jun 15 1981, Jun 30 2018

It also ties 15th highest all-time (by noon hour), record 48 July 21 2011

#ONstorm #ONwx

💯

Also of note, the forecast overnight low of 25C for Monday night into Tuesday would put it in a 3-way tie for all-time warmest minimum temperature at #YYZ (record 26.3C Aug 1 2006), and would be a new June record (current record 24.4C June 29 1959)

#ONstorm #ONwx

Tomorrow's forecast humidex of 45 for Toronto would put it in a 3-way tie for 2nd highest daily June humidexes at #YYZ (record 46 June 30 2018, period of record 1953-present)

#ONstorm #ONwx

3/
Total rain: 189.5mm (33rd highest)
Total snow: 9.8cm (tied 17th lowest w/ 1991)
Total precipitation: 199.3mm (39th highest)

#ONWx #ONStorm

2/
max T: 27.5C (tied 21st lowest w/ 1981, 2003, 2004, 2005)
min T: -16.0C (34th lowest)

#ONWx #ONStorm

1/ Welcome #meteorologicalsummer ☀️
Here's the spring round-up for #YYZ
avg max T: 12.8C (tied 16th highest w/ 1955, 2015)
avg min T: 2.4C (tied 17th highest w/ 1987, 2011, 2016)
avg mean T: 7.6C (tied 16th highest w/ 1946, 2001)

#ONWx #ONStorm

Correction: Max past hour (5PM CST) of 35.2C now puts #YWG in a tie for 6th warmest May day (w/ May 31 1988)
#MBWx #MBStorm

With 34.9C today, Winnipeg #YWG ties its 10th warmest May day on record (May 5 2016). Warmest is 37.8C May 30 1934 (period of record 1872-present)
#MBwx #MBstorm

Yesterday's 103km/h at #YYZ is tied as the 4th highest April wind gust (and tied 26th all-time)
#ONstorm #ONwx

Pearson #YYZ reached a max of 21.3C this afternoon, the first >20C day of 2025! This is the 7th earliest first occurrence on record (POR 1938-present)

Record earliest: March 8 2000
Record latest: May 19 1978
(1991-2020 climatological median: April 14

correction: Record latest: April 28 1940 (by Julian day)

We have Pearson's #YYZ first >15C of the year! Tied 29th earliest (w/ 2010)

Record earliest: January 8 2008
Record latest: April 28 1965
(1991-2020 climatological median first: March 14)
#ONwx #ONstorm

Another >20C day at #YQG making it just the 18th time on record with at least 2 consecutive 20C days in March (POR 1941-present)

Longest streak: March 14-23 2012 (10 days)
Most recent streak: March 22-24 2021 (3 days)

#ONwx #ONstorm

After further investigation, this is also the first >=20C of 2025 for all of Canada (erroneous data from Beechy, SK for Feb 2 2025)

#ONwx #ONstorm