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Data as of 2025-12-31
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Built 2026-10-17 (17 October 2026)

Heart Lake Weather Records (CA006153410)

Record envelope, standing records and threshold days for Heart Lake (CA006153410), Ontario, Canada, with 33 years of record.

Key Facts for Heart Lake

  • Heart Lake (CA006153410) is a weather station in Ontario, Canada at 43.73 latitude and -79.78 longitude, 259 m (850 ft) above sea level.
  • The station reports from 1957 to 1989, 33 years of record.
  • 0 records set at Heart Lake 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, 43.73 latitude, -79.78 longitude.
  • Elevation: 259 m (850 ft).
  • Period of record: 1957 to 1989, 33 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Heart Lake, with 2026 drawn through them The band shows the record high and record low for each calendar day at Heart Lake. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Heart Lake. 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 Heart Lake, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Aprn/an/an/an/a
Mayn/an/an/an/a
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Juln/an/an/an/a
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Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Heart Lake by the year they were set 0 records at Heart Lake still stand. 00000000000
0 records at Heart Lake still stand.
Standing records at Heart Lake by the year they were set
Year setStanding records

Wettest Day of Each Month

Aug: 69.9 mm (2.8 in)
Record daily precipitation for each month at Heart Lake The wettest day on record for each calendar month at Heart Lake. The most was 69.9 mm (2.8 in) on 22 August 1968. 020406080 Jan: 41.9 mm (1.6 in), 14 January 1968 Jan Feb: 34.3 mm (1.4 in), 9 February 1965 Feb Mar: 43.2 mm (1.7 in), 4 March 1974 Mar Apr: 33.0 mm (1.3 in), 18 April 1975 Apr May: 59.7 mm (2.4 in), 16 May 1974 May Jun: 57.0 mm (2.2 in), 5 June 1982 Jun Jul: 63.5 mm (2.5 in), 24 July 1969 Jul Aug: 69.9 mm (2.8 in), 22 August 1968 Aug Sep: 68.6 mm (2.7 in), 17 September 1976 Sep Oct: 49.0 mm (1.9 in), 21 October 1965 Oct Nov: 55.9 mm (2.2 in), 20 November 1974 Nov Dec: 45.7 mm (1.8 in), 12 December 1972 Dec
The wettest day on record for each calendar month at Heart Lake. The most was 69.9 mm (2.8 in) on 22 August 1968.
Record daily precipitation for each month at Heart Lake
MonthRecord daily precipitation (mm)Date
Jan41.9 mm (1.6 in)14 January 1968
Feb34.3 mm (1.4 in)9 February 1965
Mar43.2 mm (1.7 in)4 March 1974
Apr33.0 mm (1.3 in)18 April 1975
May59.7 mm (2.4 in)16 May 1974
Jun57.0 mm (2.2 in)5 June 1982
Jul63.5 mm (2.5 in)24 July 1969
Aug69.9 mm (2.8 in)22 August 1968
Sep68.6 mm (2.7 in)17 September 1976
Oct49.0 mm (1.9 in)21 October 1965
Nov55.9 mm (2.2 in)20 November 1974
Dec45.7 mm (1.8 in)12 December 1972

Latest Records

0

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

Extremes by Year

1957 to 1983
Yearly extremes at Heart Lake: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)69.9 mm (2.8 in)196841.9 mm (1.6 in)27
Wettest five days (Rx5day)98.3 mm (3.9 in)196968.6 mm (2.7 in)27
Longest dry spell (CDD)34 days198018 days27

Wettest day (Rx1day)

Wettest day (Rx1day) at Heart Lake by year The wettest day of the year at Heart Lake, 1957 to 1983. The record is 69.9 mm (2.8 in) in 1968, marked on the chart; the median year is 41.9 mm (1.6 in). 02040608019601965197019751980Record: 69.9 mm (2.8 in) in 1968
The wettest day of the year at Heart Lake, 1957 to 1983. The record is 69.9 mm (2.8 in) in 1968, marked on the chart; the median year is 41.9 mm (1.6 in).
Wettest day (Rx1day) at Heart Lake by year
YearWettest day (Rx1day)
19574.3 mm (0.17 in)
195830.5 mm (1.2 in)
195931.8 mm (1.3 in)
196039.1 mm (1.5 in)
196123.9 mm (0.9 in)
196249.3 mm (1.9 in)
196330.5 mm (1.2 in)
196454.1 mm (2.1 in)
196549.0 mm (1.9 in)
196638.1 mm (1.5 in)
196744.5 mm (1.8 in)
196869.9 mm (2.8 in)
196963.5 mm (2.5 in)
197044.5 mm (1.8 in)
197149.5 mm (1.9 in)
197245.7 mm (1.8 in)
197330.5 mm (1.2 in)
197459.7 mm (2.4 in)
197541.9 mm (1.6 in)
197668.6 mm (2.7 in)
197744.5 mm (1.8 in)
197840.6 mm (1.6 in)
197932.0 mm (1.3 in)
198025.8 mm (1.0 in)
198136.0 mm (1.4 in)
198257.0 mm (2.2 in)
198337.4 mm (1.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Heart Lake by year The wettest five days of the year at Heart Lake, 1957 to 1983. The record is 98.3 mm (3.9 in) in 1969, marked on the chart; the median year is 68.6 mm (2.7 in). 025507510019601965197019751980Record: 98.3 mm (3.9 in) in 1969
The wettest five days of the year at Heart Lake, 1957 to 1983. The record is 98.3 mm (3.9 in) in 1969, marked on the chart; the median year is 68.6 mm (2.7 in).
Wettest five days (Rx5day) at Heart Lake by year
YearWettest five days (Rx5day)
19574.8 mm (0.19 in)
195842.1 mm (1.7 in)
195944.4 mm (1.7 in)
196084.9 mm (3.3 in)
196141.7 mm (1.6 in)
196289.2 mm (3.5 in)
196347.8 mm (1.9 in)
196487.1 mm (3.4 in)
196577.0 mm (3.0 in)
196678.5 mm (3.1 in)
196763.2 mm (2.5 in)
196893.8 mm (3.7 in)
196998.3 mm (3.9 in)
197066.6 mm (2.6 in)
197153.4 mm (2.1 in)
197264.7 mm (2.5 in)
197372.6 mm (2.9 in)
197483.8 mm (3.3 in)
197552.1 mm (2.1 in)
197672.4 mm (2.9 in)
197768.6 mm (2.7 in)
197876.2 mm (3.0 in)
197949.0 mm (1.9 in)
198027.6 mm (1.1 in)
198176.6 mm (3.0 in)
198269.8 mm (2.7 in)
198355.6 mm (2.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Heart Lake by year The longest dry spell of the year at Heart Lake, 1957 to 1983. The record is 34 days in 1980, marked on the chart; the median year is 18 days. 1020304019601965197019751980Record: 34 days in 1980
The longest dry spell of the year at Heart Lake, 1957 to 1983. The record is 34 days in 1980, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Heart Lake by year
YearLongest dry spell (CDD)
195710 days
195817 days
195915 days
196031 days
196118 days
196223 days
196331 days
196422 days
196514 days
196623 days
196720 days
196819 days
196928 days
197012 days
197116 days
197213 days
197327 days
197415 days
197514 days
197620 days
197713 days
197818 days
197930 days
198034 days
198114 days
198218 days
198323 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 Heart Lake standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Heart Lake 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).