Toronto Ellesmere Weather Records (CA006158520)

Record envelope, standing records and threshold days for Toronto Ellesmere (CA006158520), Ontario, Canada, with 36 years of record.

Key Facts for Toronto Ellesmere

Toronto Ellesmere (CA006158520) is a weather station in Ontario, Canada at 43.77 latitude and -79.27 longitude, 164 m (538 ft) above sea level.
The station reports from 1959 to 1994, 36 years of record.
1,464 records set at Toronto Ellesmere still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Ontario, Canada, 43.77 latitude, -79.27 longitude.
Elevation: 164 m (538 ft).
Period of record: 1959 to 1994, 36 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Toronto Ellesmere. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Toronto Ellesmere, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	13.9 C (57.0 F)	-31.0 C (-23.8 F)	n/a	n/a
Feb	12.2 C (54.0 F)	-30.0 C (-22.0 F)	n/a	n/a
Mar	22.8 C (73.0 F)	-24.0 C (-11.2 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-14.4 C (6.1 F)	n/a	n/a
May	35.0 C (95.0 F)	-4.0 C (24.8 F)	n/a	n/a
Jun	35.6 C (96.1 F)	2.0 C (35.6 F)	n/a	n/a
Jul	36.7 C (98.1 F)	6.1 C (43.0 F)	n/a	n/a
Aug	36.1 C (97.0 F)	2.5 C (36.5 F)	n/a	n/a
Sep	34.0 C (93.2 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	28.3 C (82.9 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	23.3 C (73.9 F)	-14.4 C (6.1 F)	n/a	n/a
Dec	16.1 C (61.0 F)	-27.0 C (-16.6 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Toronto Ellesmere still stand. 1973 holds the most, with 82.

Standing records at Toronto Ellesmere by the year they were set
Year set	Standing records
1959	42
1960	44
1961	66
1962	57
1963	78
1964	72
1965	81
1966	65
1967	67
1968	59
1969	42
1970	47
1971	42
1972	50
1973	82
1974	57
1975	68
1976	61
1977	68
1978	57
1979	68
1980	57
1981	50
1982	36
1983	48

Wettest Day of Each Month

Jun: 76.2 mm (3.0 in)

The wettest day on record for each calendar month at Toronto Ellesmere. The most was 76.2 mm (3.0 in) on 28 June 1965.

Record daily precipitation for each month at Toronto Ellesmere
Month	Record daily precipitation (mm)	Date
Jan	55.9 mm (2.2 in)	14 January 1968
Feb	44.5 mm (1.8 in)	1 February 1968
Mar	30.0 mm (1.2 in)	21 March 1980
Apr	40.8 mm (1.6 in)	14 April 1980
May	46.0 mm (1.8 in)	7 May 1960
Jun	76.2 mm (3.0 in)	28 June 1965
Jul	62.7 mm (2.5 in)	12 July 1964
Aug	71.4 mm (2.8 in)	28 August 1976
Sep	52.0 mm (2.0 in)	24 September 1977
Oct	55.6 mm (2.2 in)	22 October 1972
Nov	50.0 mm (2.0 in)	7 November 1977
Dec	30.5 mm (1.2 in)	6 December 1966

Period of Record Coverage

1959 to 1983

25 years of record at Toronto Ellesmere, 1959 to 1983. 3 years have data for under 90 percent of days and are left out of rankings: 1959, 1960, 1976.

Days with data per year at Toronto Ellesmere
Year	Days with data	Share of year	Complete
1959	130	36%	No
1960	297	81%	No
1961	354	97%	Yes
1962	353	97%	Yes
1963	356	98%	Yes
1964	363	99%	Yes
1965	358	98%	Yes
1966	358	98%	Yes
1967	365	100%	Yes
1968	362	99%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	364	100%	Yes
1975	358	98%	Yes
1976	306	84%	No
1977	365	100%	Yes
1978	353	97%	Yes
1979	356	98%	Yes
1980	360	98%	Yes
1981	347	95%	Yes
1982	355	97%	Yes
1983	347	95%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

18 complete years, 1963 to 1983

One stripe for each of 18 complete years at Toronto Ellesmere, 1963 to 1983. Blue stripes are years cooler than the station's own mean of 7.5 C (45.6 F); red stripes are warmer. The coolest year was 1963, at 6.8 C (44.3 F), and the warmest was 1975, at 8.6 C (47.5 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Toronto Ellesmere as warming stripes, 1963 to 1983
Year	Annual mean temperature	Difference from the station mean
1963	6.8 C	-0.70 C
1965	6.9 C	-0.65 C
1966	7.2 C	-0.38 C
1967	6.8 C	-0.69 C
1968	7.3 C	-0.26 C
1969	7.6 C	+0.09 C
1970	7.3 C	-0.19 C
1971	7.9 C	+0.33 C
1972	6.8 C	-0.70 C
1973	8.5 C	+0.97 C
1974	7.6 C	+0.03 C
1975	8.6 C	+1.07 C
1977	7.8 C	+0.27 C
1979	7.4 C	-0.10 C
1980	7.3 C	-0.24 C
1981	7.9 C	+0.37 C
1982	7.3 C	-0.24 C
1983	8.6 C	+1.02 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1959 to 1983

Yearly extremes at Toronto Ellesmere: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.7 C (98.1 F)	1966	33.9 C (93.0 F)	25
Coldest night (TNn)	-31.0 C (-23.8 F)	1981	-23.9 C (-11.0 F)	25
Wettest day (Rx1day)	76.2 mm (3.0 in)	1965	43.6 mm (1.7 in)	25
Wettest five days (Rx5day)	126.7 mm (5.0 in)	1964	64.6 mm (2.5 in)	25
Longest dry spell (CDD)	31 days	1963	21 days	25

Hottest day (TXx)

The hottest day of the year at Toronto Ellesmere, 1959 to 1983. The record is 36.7 C (98.1 F) in 1966, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at Toronto Ellesmere by year
Year	Hottest day (TXx)
1959	33.9 C (93.0 F)
1960	31.1 C (88.0 F)
1961	32.2 C (90.0 F)
1962	33.9 C (93.0 F)
1963	35.0 C (95.0 F)
1964	35.6 C (96.1 F)
1965	36.1 C (97.0 F)
1966	36.7 C (98.1 F)
1967	32.2 C (90.0 F)
1968	33.3 C (91.9 F)
1969	35.0 C (95.0 F)
1970	31.7 C (89.1 F)
1971	33.3 C (91.9 F)
1972	33.9 C (93.0 F)
1973	34.4 C (93.9 F)
1974	34.4 C (93.9 F)
1975	35.0 C (95.0 F)
1976	33.3 C (91.9 F)
1977	36.0 C (96.8 F)
1978	34.0 C (93.2 F)
1979	32.0 C (89.6 F)
1980	32.0 C (89.6 F)
1981	34.0 C (93.2 F)
1982	33.0 C (91.4 F)
1983	36.0 C (96.8 F)

Coldest night (TNn)

The coldest night of the year at Toronto Ellesmere, 1959 to 1983. The record is -31.0 C (-23.8 F) in 1981, marked on the chart; the median year is -23.9 C (-11.0 F).

Coldest night (TNn) at Toronto Ellesmere by year
Year	Coldest night (TNn)
1959	-11.7 C (10.9 F)
1960	-21.1 C (-6.0 F)
1961	-25.0 C (-13.0 F)
1962	-26.1 C (-15.0 F)
1963	-23.9 C (-11.0 F)
1964	-22.8 C (-9.0 F)
1965	-23.3 C (-9.9 F)
1966	-22.2 C (-8.0 F)
1967	-26.7 C (-16.1 F)
1968	-26.1 C (-15.0 F)
1969	-18.9 C (-2.0 F)
1970	-23.3 C (-9.9 F)
1971	-23.3 C (-9.9 F)
1972	-23.9 C (-11.0 F)
1973	-22.8 C (-9.0 F)
1974	-20.0 C (-4.0 F)
1975	-25.6 C (-14.1 F)
1976	-28.3 C (-18.9 F)
1977	-26.1 C (-15.0 F)
1978	-28.0 C (-18.4 F)
1979	-30.0 C (-22.0 F)
1980	-27.0 C (-16.6 F)
1981	-31.0 C (-23.8 F)
1982	-28.0 C (-18.4 F)
1983	-22.0 C (-7.6 F)

Wettest day (Rx1day)

The wettest day of the year at Toronto Ellesmere, 1959 to 1983. The record is 76.2 mm (3.0 in) in 1965, marked on the chart; the median year is 43.6 mm (1.7 in).

Wettest day (Rx1day) at Toronto Ellesmere by year
Year	Wettest day (Rx1day)
1959	32.8 mm (1.3 in)
1960	46.0 mm (1.8 in)
1961	27.7 mm (1.1 in)
1962	48.3 mm (1.9 in)
1963	22.6 mm (0.9 in)
1964	62.7 mm (2.5 in)
1965	76.2 mm (3.0 in)
1966	34.3 mm (1.4 in)
1967	39.9 mm (1.6 in)
1968	55.9 mm (2.2 in)
1969	41.9 mm (1.6 in)
1970	33.0 mm (1.3 in)
1971	47.0 mm (1.9 in)
1972	55.6 mm (2.2 in)
1973	42.7 mm (1.7 in)
1974	38.1 mm (1.5 in)
1975	43.7 mm (1.7 in)
1976	71.4 mm (2.8 in)
1977	52.0 mm (2.0 in)
1978	46.8 mm (1.8 in)
1979	25.8 mm (1.0 in)
1980	43.6 mm (1.7 in)
1981	41.8 mm (1.6 in)
1982	45.0 mm (1.8 in)
1983	39.0 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Toronto Ellesmere, 1959 to 1983. The record is 126.7 mm (5.0 in) in 1964, marked on the chart; the median year is 64.6 mm (2.5 in).

Wettest five days (Rx5day) at Toronto Ellesmere by year
Year	Wettest five days (Rx5day)
1959	54.1 mm (2.1 in)
1960	91.7 mm (3.6 in)
1961	40.4 mm (1.6 in)
1962	67.4 mm (2.7 in)
1963	43.5 mm (1.7 in)
1964	126.7 mm (5.0 in)
1965	95.3 mm (3.8 in)
1966	72.5 mm (2.9 in)
1967	54.1 mm (2.1 in)
1968	56.5 mm (2.2 in)
1969	46.5 mm (1.8 in)
1970	43.1 mm (1.7 in)
1971	64.6 mm (2.5 in)
1972	92.0 mm (3.6 in)
1973	97.0 mm (3.8 in)
1974	58.7 mm (2.3 in)
1975	74.6 mm (2.9 in)
1976	106.5 mm (4.2 in)
1977	74.8 mm (2.9 in)
1978	69.3 mm (2.7 in)
1979	49.0 mm (1.9 in)
1980	53.6 mm (2.1 in)
1981	59.3 mm (2.3 in)
1982	67.7 mm (2.7 in)
1983	59.6 mm (2.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Toronto Ellesmere, 1959 to 1983. The record is 31 days in 1963, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Toronto Ellesmere by year
Year	Longest dry spell (CDD)
1959	12 days
1960	22 days
1961	22 days
1962	23 days
1963	31 days
1964	25 days
1965	15 days
1966	24 days
1967	21 days
1968	25 days
1969	24 days
1970	16 days
1971	14 days
1972	15 days
1973	29 days
1974	22 days
1975	12 days
1976	20 days
1977	18 days
1978	21 days
1979	24 days
1980	13 days
1981	15 days
1982	18 days
1983	23 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for Toronto Ellesmere standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Toronto Ellesmere threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).