Stratford Wwtp Weather Records (CA006148105)

Record envelope, standing records and threshold days for Stratford Wwtp (CA006148105), Ontario, Canada, with 58 years of record.

Key Facts for Stratford Wwtp

Stratford Wwtp (CA006148105) is a weather station in Ontario, Canada at 43.37 latitude and -81.00 longitude, 345 m (1,132 ft) above sea level.
The station reports from 1959 to 2016, 58 years of record.
1,464 records set at Stratford Wwtp 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, 43.37 latitude, -81.00 longitude.
Elevation: 345 m (1,132 ft).
Period of record: 1959 to 2016, 58 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 Stratford Wwtp. 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 Stratford Wwtp, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.2 C (54.0 F)	-32.0 C (-25.6 F)	n/a	n/a
Feb	11.7 C (53.1 F)	-29.5 C (-21.1 F)	n/a	n/a
Mar	20.6 C (69.1 F)	-25.0 C (-13.0 F)	n/a	n/a
Apr	27.2 C (81.0 F)	-15.6 C (3.9 F)	n/a	n/a
May	32.0 C (89.6 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	34.4 C (93.9 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	33.0 C (91.4 F)	3.9 C (39.0 F)	n/a	n/a
Aug	32.5 C (90.5 F)	1.0 C (33.8 F)	n/a	n/a
Sep	32.8 C (91.0 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	27.2 C (81.0 F)	-8.9 C (16.0 F)	n/a	n/a
Nov	21.1 C (70.0 F)	-12.8 C (9.0 F)	n/a	n/a
Dec	18.0 C (64.4 F)	-28.3 C (-18.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Stratford Wwtp still stand. 1965 holds the most, with 85.

Standing records at Stratford Wwtp by the year they were set
Year set	Standing records
1959	10
1960	59
1961	55
1962	62
1963	84
1964	70
1965	85
1966	72
1967	72
1968	65
1969	38
1970	47
1971	61
1972	50
1973	67
1974	50
1975	60
1976	74
1977	59
1978	50
1979	77
1980	38
1981	48
1982	60
1983	51

Wettest Day of Each Month

Jul: 137.4 mm (5.4 in)

The wettest day on record for each calendar month at Stratford Wwtp. The most was 137.4 mm (5.4 in) on 28 July 1983.

Record daily precipitation for each month at Stratford Wwtp
Month	Record daily precipitation (mm)	Date
Jan	36.0 mm (1.4 in)	10 January 1982
Feb	44.7 mm (1.8 in)	7 February 1965
Mar	38.4 mm (1.5 in)	4 March 1974
Apr	54.6 mm (2.1 in)	18 April 1975
May	64.3 mm (2.5 in)	15 May 1970
Jun	43.2 mm (1.7 in)	9 June 1966
Jul	137.4 mm (5.4 in)	28 July 1983
Aug	71.4 mm (2.8 in)	11 August 1964
Sep	80.8 mm (3.2 in)	5 September 1968
Oct	52.6 mm (2.1 in)	22 October 1972
Nov	48.3 mm (1.9 in)	9 November 1962
Dec	47.0 mm (1.9 in)	9 December 1977

Period of Record Coverage

1959 to 1983

25 years of record at Stratford Wwtp, 1959 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1959.

Days with data per year at Stratford Wwtp
Year	Days with data	Share of year	Complete
1959	67	18%	No
1960	366	100%	Yes
1961	365	100%	Yes
1962	364	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	334	92%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	363	99%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	364	100%	Yes
1980	366	100%	Yes
1981	363	99%	Yes
1982	365	100%	Yes
1983	365	100%	Yes

Latest Records

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

Climate Trend

23 complete years, 1960 to 1983

One stripe for each of 23 complete years at Stratford Wwtp, 1960 to 1983. Blue stripes are years cooler than the station's own mean of 6.5 C (43.6 F); red stripes are warmer. The coolest year was 1978, at 5.4 C (41.8 F), and the warmest was 1973, at 7.7 C (45.8 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Stratford Wwtp as warming stripes, 1960 to 1983
Year	Annual mean temperature	Difference from the station mean
1960	6.3 C	-0.20 C
1961	7.0 C	+0.53 C
1962	6.2 C	-0.21 C
1963	5.6 C	-0.83 C
1964	6.9 C	+0.46 C
1965	6.1 C	-0.32 C
1966	6.2 C	-0.21 C
1967	6.1 C	-0.32 C
1968	6.6 C	+0.17 C
1970	6.7 C	+0.20 C
1971	7.0 C	+0.51 C
1972	5.9 C	-0.53 C
1973	7.7 C	+1.24 C
1974	6.4 C	-0.02 C
1975	7.1 C	+0.69 C
1976	5.8 C	-0.64 C
1977	6.3 C	-0.12 C
1978	5.4 C	-1.02 C
1979	6.3 C	-0.19 C
1980	6.0 C	-0.43 C
1981	6.7 C	+0.22 C
1982	6.7 C	+0.23 C
1983	7.3 C	+0.88 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 Stratford Wwtp: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.4 C (93.9 F)	1964	31.7 C (89.1 F)	25
Coldest night (TNn)	-32.0 C (-25.6 F)	1981	-25.6 C (-14.1 F)	25
Wettest day (Rx1day)	137.4 mm (5.4 in)	1983	46.5 mm (1.8 in)	25
Wettest five days (Rx5day)	192.1 mm (7.6 in)	1983	78.0 mm (3.1 in)	25
Longest dry spell (CDD)	33 days	1966	14 days	25

Hottest day (TXx)

The hottest day of the year at Stratford Wwtp, 1959 to 1983. The record is 34.4 C (93.9 F) in 1964, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Stratford Wwtp by year
Year	Hottest day (TXx)
1959	18.9 C (66.0 F)
1960	31.7 C (89.1 F)
1961	30.6 C (87.1 F)
1962	31.1 C (88.0 F)
1963	32.2 C (90.0 F)
1964	34.4 C (93.9 F)
1965	31.7 C (89.1 F)
1966	32.2 C (90.0 F)
1967	29.4 C (84.9 F)
1968	31.7 C (89.1 F)
1969	31.7 C (89.1 F)
1970	32.2 C (90.0 F)
1971	33.9 C (93.0 F)
1972	31.1 C (88.0 F)
1973	32.8 C (91.0 F)
1974	31.1 C (88.0 F)
1975	32.2 C (90.0 F)
1976	31.1 C (88.0 F)
1977	33.0 C (91.4 F)
1978	32.5 C (90.5 F)
1979	30.5 C (86.9 F)
1980	30.0 C (86.0 F)
1981	31.0 C (87.8 F)
1982	30.0 C (86.0 F)
1983	32.0 C (89.6 F)

Coldest night (TNn)

The coldest night of the year at Stratford Wwtp, 1959 to 1983. The record is -32.0 C (-25.6 F) in 1981, marked on the chart; the median year is -25.6 C (-14.1 F).

Coldest night (TNn) at Stratford Wwtp by year
Year	Coldest night (TNn)
1959	-17.8 C (0.0 F)
1960	-25.6 C (-14.1 F)
1961	-27.8 C (-18.0 F)
1962	-25.6 C (-14.1 F)
1963	-28.9 C (-20.0 F)
1964	-23.9 C (-11.0 F)
1965	-24.4 C (-11.9 F)
1966	-24.4 C (-11.9 F)
1967	-26.1 C (-15.0 F)
1968	-23.9 C (-11.0 F)
1969	-25.0 C (-13.0 F)
1970	-31.1 C (-24.0 F)
1971	-25.0 C (-13.0 F)
1972	-22.8 C (-9.0 F)
1973	-24.4 C (-11.9 F)
1974	-22.2 C (-8.0 F)
1975	-22.2 C (-8.0 F)
1976	-30.6 C (-23.1 F)
1977	-30.0 C (-22.0 F)
1978	-29.5 C (-21.1 F)
1979	-28.0 C (-18.4 F)
1980	-26.0 C (-14.8 F)
1981	-32.0 C (-25.6 F)
1982	-26.0 C (-14.8 F)
1983	-24.0 C (-11.2 F)

Wettest day (Rx1day)

The wettest day of the year at Stratford Wwtp, 1959 to 1983. The record is 137.4 mm (5.4 in) in 1983, marked on the chart; the median year is 46.5 mm (1.8 in).

Wettest day (Rx1day) at Stratford Wwtp by year
Year	Wettest day (Rx1day)
1959	32.0 mm (1.3 in)
1960	37.6 mm (1.5 in)
1961	31.0 mm (1.2 in)
1962	48.3 mm (1.9 in)
1963	44.7 mm (1.8 in)
1964	71.4 mm (2.8 in)
1965	44.7 mm (1.8 in)
1966	43.2 mm (1.7 in)
1967	39.6 mm (1.6 in)
1968	80.8 mm (3.2 in)
1969	56.1 mm (2.2 in)
1970	64.3 mm (2.5 in)
1971	31.8 mm (1.3 in)
1972	52.6 mm (2.1 in)
1973	34.8 mm (1.4 in)
1974	46.5 mm (1.8 in)
1975	54.6 mm (2.1 in)
1976	61.0 mm (2.4 in)
1977	47.0 mm (1.9 in)
1978	43.0 mm (1.7 in)
1979	46.1 mm (1.8 in)
1980	38.0 mm (1.5 in)
1981	60.0 mm (2.4 in)
1982	48.0 mm (1.9 in)
1983	137.4 mm (5.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Stratford Wwtp, 1959 to 1983. The record is 192.1 mm (7.6 in) in 1983, marked on the chart; the median year is 78.0 mm (3.1 in).

Wettest five days (Rx5day) at Stratford Wwtp by year
Year	Wettest five days (Rx5day)
1959	52.3 mm (2.1 in)
1960	68.4 mm (2.7 in)
1961	52.2 mm (2.1 in)
1962	68.4 mm (2.7 in)
1963	47.5 mm (1.9 in)
1964	80.1 mm (3.2 in)
1965	82.3 mm (3.2 in)
1966	76.4 mm (3.0 in)
1967	78.3 mm (3.1 in)
1968	129.1 mm (5.1 in)
1969	72.0 mm (2.8 in)
1970	82.1 mm (3.2 in)
1971	50.0 mm (2.0 in)
1972	73.2 mm (2.9 in)
1973	63.3 mm (2.5 in)
1974	81.9 mm (3.2 in)
1975	78.0 mm (3.1 in)
1976	87.2 mm (3.4 in)
1977	84.0 mm (3.3 in)
1978	101.5 mm (4.0 in)
1979	79.2 mm (3.1 in)
1980	51.8 mm (2.0 in)
1981	139.2 mm (5.5 in)
1982	65.8 mm (2.6 in)
1983	192.1 mm (7.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Stratford Wwtp, 1959 to 1983. The record is 33 days in 1966, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Stratford Wwtp by year
Year	Longest dry spell (CDD)
1959	7 days
1960	13 days
1961	16 days
1962	24 days
1963	27 days
1964	14 days
1965	14 days
1966	33 days
1967	22 days
1968	12 days
1969	22 days
1970	16 days
1971	13 days
1972	11 days
1973	25 days
1974	14 days
1975	13 days
1976	25 days
1977	13 days
1978	16 days
1979	16 days
1980	13 days
1981	10 days
1982	10 days
1983	16 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.

Frost Dates and Growing Season

23 years with a frost

Across 23 years with a frost, the median last spring frost at Stratford Wwtp falls on 14 May and the median first autumn frost on 5 October, which leaves a median of 146 days between them.

Frost dates and growing season at Stratford Wwtp
Measure	Median, all years	Earliest period	Recent period (1960 to 1983)	Recent against earliest	Fitted trend
Last spring frost	14 May	n/a	14 May	n/a	n/a
First autumn frost	5 October	n/a	5 October	n/a	n/a
Growing days	146 days	n/a	146 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Stratford Wwtp standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Stratford Wwtp 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).