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August 4, 2015 - The July 2015 monthly weather summary is now available. Toronto August weather almanac is available in the here.
July Highlights: Heat Warning was issued in total of 7 days. Extreme daily highs include 34.9 C (D0132 on 27th) and 33.6 C (CYKZ on 29th). Highest THSW index of 44.7 (18th), hottest day on 30th with daily temperature mean of 21.5 and highest uv index of 9.0 on 19th.
July 5, 2015 - The June 2015 monthly weather summary is now available. Toronto July weather almanac is available in the here.
June Highlights: Monthly mean temperature 18.5 C, highest daily mean of 23.4 (21st), lowest daily max of 15.9 (28th), highest daily solar radiation of 1216 W/m2 (23rd), highest uv index 10.2 (15th) and highest humidex of 37.2 (10th).
June 7, 2015 - The May 2015 monthly weather summary is now available. Toronto June daily record high and lows are available in the almanac page.
May Highlights: Monthly mean temperature 16.8 C, max THSW Index 38.1, coldest day (31st) with mean temperature of 9.2 C, highest uv index 8.8 and highest SLP barometric pressure 1032.0 mb.
May 11, 2015 - The April 2015 monthly weather summary is now available. Toronto May daily record high and lows are available in the almanac page.
April Highlights: Monthly mean temperature 8.3 C, max THSW Index 28.8, total sunshine 155.57 hours, highest uv index 5.9 and lowest SLP barometric pressure 993.8 mb.
April 27, 2015 - The March 2015 monthly weather summary is now available.
Highlights: Monthly mean temperature -0.8 C, max THSW Index 17.1, total sunshine 136.13 hours, highest uv index 3.9 and greatest barometric pressure range 28.4 mb.
March 30, 2015 - The February 2015 monthly weather summary is now available.
Highlights: Monthly mean temperature -11.2 C, min THSW Index -39.9, total sunshine hours 90.45 and highest barometric pressure 1043.0 mb. February 2015 was the coldest month ever at CYYZ (monthly mean -12.6) and Winter 2014-2015 was the 12th coldest with seasonal mean temperature of -6.73 C.
March 23, 2015 - The February and March weather almanac is now available. It displays record daily temperature high and lows and, rainfall and snowfall records.
Feb 20, 2015 -The January 2015 monthly weather summary is now available.
Highlights: Monthly mean of -6.5 C at D0132 Toronto East York, -6.2 C at Downtown Toronto (CXTO) and -7.6 C at Toronto Pearson (CYYZ). Highest barometric pressure 1044.8 mb (13th), total sunshine hours of 51.3 h and 759.5 heating degree days.
For daily records and listing of weather warnings, refer to the almanac page.
Jan 12, 2015 - The December monthly weather summary is now available.
Highlights: +1.1 above monthly average (compared to CXTO 30-year average), lowest pressure 987.4 mb (24th), greatest daily pressure change: 29.2 mb (25th), 26.05 total sunshine hours and highest UV index 1.2 (26th).
Dec 24, 2014 - The November monthly weather summary is now available.
Did you know that observations from the Toronto East York weather station (D0132) are used by NOAA & National Weather Service (NWS) to generate microclimate computer weather models as part of the MADIS initiative? To view observations received by NOAA, clickhere.
Explore other Toronto weather data by checking the site map.
Nov 14, 2014 - The October and November weather almanac is now available. Heavy rainfall warning issued on October 16th and Toronto East York (DW0132) received 46.2 mm.
Sep 15, 2014 -The August and September weather summaries are now available. Notable extremes in August include highest THSW index ("how it feels like" index) of 43.4 on the 26th, highest UV index of 7.7 on the 16th and 1-day rainfall of 34.6 m on the 4th.
For an archive list of Environment Canada weather advisories and warnings, click here for the Toronto weather almanac.
Aug 3, 2014 - Local topography shapes the microclimate within the city's limits. For example, lake breezes kept the monthly July mean temperature at 19.2 ºC near the lakeshore (CYTZ) while the hills and valleys at Toronto East York made it the hottest corner in the city at 21.2 ºC (D0132). Are you curious to know the highest UV index, highest humidex and greatest 1-day rainfall? Click here for the July weather summary.
July 14, 2014 - June's weather highlight was extreme rainfall events resulted in new daily rainfall records: CYYZ (on the 11th) & CYKZ (on the 12th & 17th). However, the most extreme instance occurred at the Sunnybrook Park PWS (MADIS CWOP ID: D0132) on the 25th where a stationary cell inundated the area for 3 consecutive hours and dumped 74.0 mm of rain. Click here for detailed weather readings for the epic rain and here for June weather almanac
Other notable extremes include UV index of 10.0 (5th & 20th), THSW index of 42.5 (29th) and evapotranspiration of 4.7 mm (7th). Surprisingly, maximum temperature failed to exceed 32.0 deg. C. For detailed monthly summary, proceed to historical
June 1, 2014 - May reached several milestones year to date: highest UV index 9.0 (30th), highest humidex 35.2 (27th), highest THSW index 37.1 (26th) and highest solar radiation 1276 W/m2 (16th). For detailed monthly summary, proceed to historical page.
For the climatological spring (March, April & May) season 2014 was 1.47 deg. C below normal and tied to 18th coldest spring (CYYZ). For significant spring weather events, proceed to the almanac page.
May 5, 2014- April 2014 was 1.0 deg. C below normal (CYYZ). At Toronto East York (CWOP), the hottest day was on the 13th with max THSW index of max 26.6. The most variable day was on the 14th with a delta of 18.5 deg. C between daily max and min. For detailed monthly summary, proceed to historical page.
May 1, 2014 - March 2014 was the 4th coldest (tied 1972) at CYYZ and with average monthly mean of -4.33 deg. C (4.4 deg. C below seasonal). At Toronto East York (CWOP), the coldest day was on the 3rd with daily mean temp of -14.1 deg. C. The highest pressure was 1037.9 mb and lowest 997.8 mb. For detailed monthly summary, proceed to historical page.
March 10, 2014 - February 2014 was the 8th coldest (CYYZ) with average monthly mean of -8.33 deg. C (3.7 deg. C below seasonal). At Toronto East York (CWOP), the lowest THSW Index was -27.1 deg. C on the 27th. The sunniest day was on the 23rd with 7.12 hours of sunshine and 3.4 MED UV radiation dose. Highest UV index reached on the 28th with a reading of 2.6. For detailed monthly summary, proceed to historical page.
February 10, 2014 - January 2014 was the 16th coldest (CYYZ) with average monthly mean of -8.64 deg. C (3.15 deg. C below seasonal). At Toronto East York (CWOP), the coldest day was on Jan 7th with mean temp of -19.3 deg. C and THSW index of -36.1. The highest pressure was 1038.1 mb and lowest was 987.4 mb. For detailed monthly summary, proceed to historical page.
January 26, 2014 -The forecast for the last week of the month could potentially put us into the top 10 coldest January (based on CYYZ data). The coldest January was in 1994 where the mean temperature was -12.4 deg. C. Click here to find the January extremes - coldest, wettest & snowiest.
January 5, 2014 -The December Monthly Weather Summary is now available. The daily temperature range (difference between max & min) on Dec 7th was only 0.6 deg. C while the daily barometric range on the 14th was 23.8 mb. The total monthly bright sunshine hours was only 29.7. Clickhereand select the December 2013 table icon to access the complete weather report in pdf
December 24, 2013 -Major ice storm hit Toronto and surrounding area. Detailed storm analysis will be posted shortly. For daily snowfall readings, including the Dec 14th & 15th heavy snowfall event, from the Toronto East York PWS and Environment Canada weather stations, click on the Almanac page.
December 9, 2013 -The November Monthly Weather Summary is now available. The typical time of the daily high occurred at 1331 and low at 0358. The highest barometric pressure was 1040.7 mb while the lowest was 983.3 mb. The lowest windchill was -18.9 deg. C! Clickhereand select the November 2013 table icon to access the complete weather report in pdf.
December 2, 2013 -Detailed storm analysis of the intense Fall storm affected the Great Lakes area in November 17 - 18. It includes barometric pressure readings and weather maps such as convergence moisture content, isobar and wind maps. Click on theStorm Summariespage and select November 2013. For daily temperature and precipitation extremes, click onthe Almanac page.
November 4, 2013 -The October Monthly Weather Summary is now available. Above normal precipitation with total monthly rainfall of 123.0 mm. The most intense storm was the Halloween weather bomb storm where the 24-hour pressure change was an incredible 28.9 mb! Clickhereand select the October 2013 table icon to access the complete weather report in pdf.
November 1, 2013 -The Site Map has been updated to help you navigate and find the Toronto weather information you need. It is located as a subpage under the Home link above.
October 5, 2013-September monthly summary is now available! Snapshot: Highest UV index 6.2, maximum solar radiation 977 W/m2 ,highest humidex 45.6 and 11 days of measurable precipitation. Click here and select the September 2013 table icon to open the pdf file.
September 2, 2013-Are you curious to know the highest solar radiation and uv index in Toronto in August 2013? How about the highest humidex and total rainfall? Click here and select the August 2013 table icon to open the pdf file.
September 1, 2013 -The highest temperature recorded at Environment Canada's weather station network in August 2013 was 38.6 ºC at Lytton, BC and the coldest was -12.9 ºC at Eureka Airport, NU. Click here and select the hyperlink August 2013 to open the pdf file and learn about the highest and lowest temperatures in Ontario.
August 10, 2013 - Did you know that the highest humidex in July 2013 was 50.1? We basked in 220 hours of sunshine and the highest UV index was 9.5. Do you want to know the typical time of the daily high temperature in July? Click here and select the July 2013 table hyperlink to view the daily weather summary for the month of July.
July 20, 2013 - Southern Ontario heat wave and severe thunderstorm stormsummary. Click here to view yesterday's temperature and record extremes in the Toronto area. Select the July 2013 hyperlink to open the table.
July 8, 2013 - Epic rainfall in Toronto. Click here for weather synopsis, Environment Canada storm summaries, radar and satellite imageries and news coverage of the storm.