Owen Sound Weather Records (CA006116128)

Record envelope, standing records and threshold days for Owen Sound (CA006116128), Ontario, Canada, with 85 years of record.

Key Facts for Owen Sound

Owen Sound (CA006116128) is a weather station in Ontario, Canada at 44.57 latitude and -80.92 longitude, 182 m (597 ft) above sea level.
The station reports from 1878 to 1962, 85 years of record.
1,464 records set at Owen Sound still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Owen Sound set a daily record precipitation of 45.7 mm (1.8 in) on 16 November 1961.

About the Station

Location: Ontario, Canada, 44.57 latitude, -80.92 longitude.
Elevation: 182 m (597 ft).
Period of record: 1878 to 1962, 85 years.
Eligible elements: tmax, tmin, prcp, snow.

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 Owen Sound. 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 Owen Sound, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.6 C (60.1 F)	-32.2 C (-26.0 F)	n/a	n/a
Feb	14.4 C (57.9 F)	-36.7 C (-34.1 F)	n/a	n/a
Mar	26.1 C (79.0 F)	-31.1 C (-24.0 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-18.3 C (-0.9 F)	n/a	n/a
May	36.1 C (97.0 F)	-7.8 C (18.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	-1.7 C (28.9 F)	n/a	n/a
Jul	40.0 C (104.0 F)	1.1 C (34.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	2.2 C (36.0 F)	n/a	n/a
Sep	35.6 C (96.1 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-10.6 C (12.9 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-21.7 C (-7.1 F)	n/a	n/a
Dec	16.7 C (62.1 F)	-30.0 C (-22.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Owen Sound still stand. 1885 holds the most, with 73.

Standing records at Owen Sound by the year they were set
Year set	Standing records
1878	2
1879	39
1880	29
1881	40
1882	34
1883	45
1884	39
1885	73
1886	42
1887	33
1888	15
1889	20
1890	15
1891	19
1892	13
1893	13
1894	31
1895	38
1896	27
1897	17
1898	20
1899	30
1900	35
1901	12
1902	16
1903	13
1904	22
1905	14
1906	23
1907	19
1908	19
1909	14
1910	12
1911	16
1914	27
1915	8
1916	20
1917	23
1918	19
1919	8
1920	14
1921	21
1922	7
1923	19
1924	8
1925	18
1926	17
1927	12
1928	9
1929	9
1930	19
1931	12
1932	12
1933	14
1934	17
1935	5
1936	12
1937	10
1938	14
1939	10
1940	12
1941	4
1942	8
1943	12
1944	10
1945	29
1946	20
1947	25
1948	15
1949	15
1950	17
1951	4
1952	4
1953	16
1954	9
1955	10
1956	15
1957	12
1958	13
1961	1

All-Time Record Progression

5 new records

5 all-time records were set at Owen Sound between 1 July 1911 and 8 February 1934. Each dot is a new record.

When Owen Sound set new all-time records
Date	Kind	Detail
1911-07-01	Record high maximum temperature	Record high maximum temperature 37.8 C (100.0 F)
1911-07-03	Record high maximum temperature	Record high maximum temperature 40.0 C (104.0 F)
1914-07-15	Record high minimum temperature	Record high minimum temperature 25.6 C (78.1 F)
1914-07-16	Record high minimum temperature	Record high minimum temperature 27.2 C (81.0 F)
1934-02-08	Record low maximum temperature	Record low maximum temperature -27.2 C (-17.0 F)

Wettest Day of Each Month

Jul: 137.9 mm (5.4 in)

The wettest day on record for each calendar month at Owen Sound. The most was 137.9 mm (5.4 in) on 5 July 1883.

Record daily precipitation for each month at Owen Sound
Month	Record daily precipitation (mm)	Date
Jan	45.7 mm (1.8 in)	9 January 1912
Feb	49.0 mm (1.9 in)	8 February 1887
Mar	61.0 mm (2.4 in)	14 March 1891
Apr	72.4 mm (2.9 in)	24 April 1957
May	56.9 mm (2.2 in)	30 May 1889
Jun	115.1 mm (4.5 in)	23 June 1944
Jul	137.9 mm (5.4 in)	5 July 1883
Aug	129.3 mm (5.1 in)	23 August 1954
Sep	96.0 mm (3.8 in)	9 September 1885
Oct	82.8 mm (3.3 in)	15 October 1954
Nov	77.0 mm (3.0 in)	24 November 1891
Dec	50.8 mm (2.0 in)	25 December 1898

Period of Record Coverage

1878 to 1961

80 years of record at Owen Sound, 1878 to 1961. 11 years have data for under 90 percent of days and are left out of rankings: 1878, 1886, 1887, 1910, 1911, 1914, 1915, 1945 and others.

Days with data per year at Owen Sound
Year	Days with data	Share of year	Complete
1878	123	34%	No
1879	364	100%	Yes
1880	366	100%	Yes
1881	365	100%	Yes
1882	365	100%	Yes
1883	361	99%	Yes
1884	364	99%	Yes
1885	364	100%	Yes
1886	303	83%	No
1887	302	83%	No
1888	334	91%	Yes
1889	365	100%	Yes
1890	363	99%	Yes
1891	363	99%	Yes
1892	361	99%	Yes
1893	360	99%	Yes
1894	365	100%	Yes
1895	365	100%	Yes
1896	365	100%	Yes
1897	365	100%	Yes
1898	364	100%	Yes
1899	364	100%	Yes
1900	365	100%	Yes
1901	365	100%	Yes
1902	365	100%	Yes
1903	365	100%	Yes
1904	365	100%	Yes
1905	364	100%	Yes
1906	364	100%	Yes
1907	364	100%	Yes
1908	366	100%	Yes
1909	364	100%	Yes
1910	304	83%	No
1911	210	58%	No
1914	92	25%	No
1915	214	59%	No
1916	354	97%	Yes
1917	365	100%	Yes
1918	365	100%	Yes
1919	363	99%	Yes
1920	366	100%	Yes
1921	365	100%	Yes
1922	365	100%	Yes
1923	364	100%	Yes
1924	366	100%	Yes
1925	365	100%	Yes
1926	365	100%	Yes
1927	347	95%	Yes
1928	365	100%	Yes
1929	351	96%	Yes
1930	365	100%	Yes
1931	363	99%	Yes
1932	334	91%	Yes
1933	365	100%	Yes
1934	334	92%	Yes
1935	334	92%	Yes
1936	366	100%	Yes
1937	365	100%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	364	100%	Yes
1942	338	93%	Yes
1943	364	100%	Yes
1944	366	100%	Yes
1945	290	79%	No
1946	363	99%	Yes
1947	365	100%	Yes
1948	299	82%	No
1949	364	100%	Yes
1950	364	100%	Yes
1951	212	58%	No
1952	343	94%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	364	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1961	182	50%	No

Latest Records

Latest records at Owen Sound
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 November 1961	Owen Sound, CA	daily rain	45.7 mm (1.8 in)	19.0 mm (0.7 in)	28 years	41 of 100 (Notable)
8 November 1961	Owen Sound, CA	daily snowfall	27.9 cm (11.0 in)	20.3 cm (8.0 in)	56 years	59 of 100 (Notable)
25 September 1961	Owen Sound, CA	daily rain	58.9 mm (2.3 in)	18.5 mm (0.7 in)	61 years	45 of 100 (Notable)
28 August 1961	Owen Sound, CA	daily rain	49.0 mm (1.9 in)	14.7 mm (0.6 in)	4 years	20 of 100 (Routine)
27 August 1961	Owen Sound, CA	daily rain (Tie)	20.1 mm (0.8 in)	tie	12 years	2 of 100 (Routine)
20 June 1961	Owen Sound, CA	daily low max	15.0 C (59.0 F)	0.6 C (1.1 F)	59 years	26 of 100 (Routine)
26 July 1959	Owen Sound, CA	daily rain	55.6 mm (2.2 in)	38.1 mm (1.5 in)	56 years	58 of 100 (Notable)
31 March 1959	Owen Sound, CA	daily rain	25.9 mm (1.0 in)	13.2 mm (0.5 in)	73 years	50 of 100 (Notable)
22 December 1958	Owen Sound, CA	daily low min	-23.9 C (-11.0 F)	4.5 C (8.1 F)	4 years	16 of 100 (Routine)
16 December 1958	Owen Sound, CA	daily low min	-21.1 C (-6.0 F)	1.7 C (3.1 F)	71 years	31 of 100 (Routine)
10 December 1958	Owen Sound, CA	daily low min (Tie)	-22.2 C (-8.0 F)	tie	3 years	2 of 100 (Routine)
9 December 1958	Owen Sound, CA	daily low min	-21.1 C (-6.0 F)	2.8 C (5.0 F)	62 years	30 of 100 (Routine)
6 December 1958	Owen Sound, CA	daily snowfall	27.9 cm (11.0 in)	8.8 cm (3.5 in)	48 years	36 of 100 (Notable)
6 December 1958	Owen Sound, CA	daily rain	27.9 mm (1.1 in)	8.8 mm (0.35 in)	48 years	35 of 100 (Notable)
1 December 1958	Owen Sound, CA	daily low min	-21.7 C (-7.1 F)	0.6 C (1.1 F)	3 years	8 of 100 (Routine)
30 November 1958	Owen Sound, CA	daily low min	-20.6 C (-5.1 F)	4.5 C (8.1 F)	78 years	39 of 100 (Notable)
18 November 1958	Owen Sound, CA	daily high max (Tie)	19.4 C (66.9 F)	tie	4 years	2 of 100 (Routine)
17 November 1958	Owen Sound, CA	daily high max	19.4 C (66.9 F)	0.5 C (0.9 F)	4 years	9 of 100 (Routine)
14 November 1958	Owen Sound, CA	daily high min	8.9 C (48.0 F)	1.1 C (2.0 F)	78 years	33 of 100 (Routine)
8 November 1958	Owen Sound, CA	daily rain	31.8 mm (1.3 in)	0.8 mm (0.03 in)	69 years	29 of 100 (Routine)

Climate Trend

56 complete years, 1879 to 1957

One stripe for each of 56 complete years at Owen Sound, 1879 to 1957. Blue stripes are years cooler than the station's own mean of 6.6 C (43.8 F); red stripes are warmer. The coolest year was 1885, at 2.9 C (37.3 F), and the warmest was 1953, at 8.3 C (46.9 F). The strongest colour marks a difference of 3.7 C (6.7 F).

Annual mean temperature at Owen Sound as warming stripes, 1879 to 1957
Year	Annual mean temperature	Difference from the station mean
1879	6.1 C	-0.42 C
1880	6.6 C	+0.09 C
1881	7.3 C	+0.76 C
1882	5.9 C	-0.61 C
1883	3.9 C	-2.67 C
1884	4.7 C	-1.84 C
1885	2.9 C	-3.61 C
1889	6.1 C	-0.45 C
1890	6.3 C	-0.22 C
1891	6.7 C	+0.19 C
1892	6.0 C	-0.60 C
1894	8.0 C	+1.46 C
1895	6.4 C	-0.11 C
1896	7.2 C	+0.68 C
1897	7.3 C	+0.71 C
1898	8.0 C	+1.42 C
1899	6.7 C	+0.12 C
1900	7.7 C	+1.10 C
1901	6.7 C	+0.18 C
1902	6.8 C	+0.27 C
1903	6.9 C	+0.37 C
1904	4.9 C	-1.68 C
1905	6.2 C	-0.31 C
1906	7.3 C	+0.72 C
1907	5.8 C	-0.78 C
1908	7.3 C	+0.71 C
1909	6.9 C	+0.32 C
1918	6.1 C	-0.42 C
1919	7.1 C	+0.50 C
1920	5.6 C	-0.97 C
1921	8.2 C	+1.64 C
1922	6.9 C	+0.30 C
1923	5.7 C	-0.89 C
1924	5.3 C	-1.28 C
1925	6.0 C	-0.58 C
1926	4.7 C	-1.84 C
1928	6.2 C	-0.31 C
1930	6.9 C	+0.35 C
1931	8.2 C	+1.61 C
1933	7.1 C	+0.56 C
1936	5.8 C	-0.74 C
1937	6.9 C	+0.32 C
1938	7.5 C	+0.93 C
1939	6.5 C	-0.02 C
1940	5.3 C	-1.23 C
1941	6.8 C	+0.25 C
1943	6.4 C	-0.16 C
1944	7.6 C	+1.05 C
1946	7.8 C	+1.27 C
1947	7.3 C	+0.71 C
1950	6.8 C	+0.24 C
1953	8.3 C	+1.70 C
1954	6.9 C	+0.37 C
1955	7.5 C	+0.90 C
1956	6.2 C	-0.34 C
1957	6.9 C	+0.36 C

The annual mean temperature here has risen by 0.13 C (0.01 to 0.24) per decade over 1879 to 1957. In Fahrenheit: 0.23 F (0.02 to 0.44) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Owen Sound
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.13 C (0.01 to 0.24) per decade	0.23 F (0.02 to 0.44) per decade	1879 to 1957	56	Rise
Mean daily maximum	0.09 C (-0.03 to 0.21) per decade	0.2 F (-0.1 to 0.4) per decade	1879 to 1957	56	Not clearly different from zero
Mean daily minimum	0.17 C (0.05 to 0.29) per decade	0.3 F (0.1 to 0.5) per decade	1879 to 1957	56	Rise

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

1878 to 1962

Yearly extremes at Owen Sound: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1911	33.1 C (91.5 F)	80
Coldest night (TNn)	-36.7 C (-34.1 F)	1895	-25.0 C (-13.0 F)	80
Wettest day (Rx1day)	137.9 mm (5.4 in)	1883	42.1 mm (1.7 in)	82
Wettest five days (Rx5day)	231.9 mm (9.1 in)	1883	71.2 mm (2.8 in)	82
Longest dry spell (CDD)	48 days	1914	16 days	82

Hottest day (TXx)

The hottest day of the year at Owen Sound, 1878 to 1962. The record is 40.0 C (104.0 F) in 1911, marked on the chart; the median year is 33.1 C (91.5 F).

Hottest day (TXx) at Owen Sound by year
Year	Hottest day (TXx)
1878	33.3 C (91.9 F)
1879	33.3 C (91.9 F)
1880	33.3 C (91.9 F)
1881	36.1 C (97.0 F)
1882	32.2 C (90.0 F)
1883	30.6 C (87.1 F)
1884	33.3 C (91.9 F)
1885	28.9 C (84.0 F)
1886	31.7 C (89.1 F)
1887	32.2 C (90.0 F)
1888	32.2 C (90.0 F)
1889	32.8 C (91.0 F)
1890	31.1 C (88.0 F)
1891	32.2 C (90.0 F)
1892	31.7 C (89.1 F)
1893	33.3 C (91.9 F)
1894	36.7 C (98.1 F)
1895	34.4 C (93.9 F)
1896	34.4 C (93.9 F)
1897	36.1 C (97.0 F)
1898	34.4 C (93.9 F)
1899	35.0 C (95.0 F)
1900	36.1 C (97.0 F)
1901	36.1 C (97.0 F)
1902	32.8 C (91.0 F)
1903	32.2 C (90.0 F)
1904	33.3 C (91.9 F)
1905	32.8 C (91.0 F)
1906	32.8 C (91.0 F)
1907	33.3 C (91.9 F)
1908	34.4 C (93.9 F)
1909	33.3 C (91.9 F)
1910	33.9 C (93.0 F)
1911	40.0 C (104.0 F)
1912	n/a
1914	31.7 C (89.1 F)
1915	31.7 C (89.1 F)
1916	34.4 C (93.9 F)
1917	34.4 C (93.9 F)
1918	36.1 C (97.0 F)
1919	33.9 C (93.0 F)
1920	29.4 C (84.9 F)
1921	35.0 C (95.0 F)
1922	30.6 C (87.1 F)
1923	32.2 C (90.0 F)
1924	30.6 C (87.1 F)
1925	33.3 C (91.9 F)
1926	31.7 C (89.1 F)
1927	32.2 C (90.0 F)
1928	31.7 C (89.1 F)
1929	31.7 C (89.1 F)
1930	30.0 C (86.0 F)
1931	35.0 C (95.0 F)
1932	31.7 C (89.1 F)
1933	35.0 C (95.0 F)
1934	33.9 C (93.0 F)
1935	31.1 C (88.0 F)
1936	35.0 C (95.0 F)
1937	31.7 C (89.1 F)
1938	33.3 C (91.9 F)
1939	32.8 C (91.0 F)
1940	32.2 C (90.0 F)
1941	35.0 C (95.0 F)
1942	31.7 C (89.1 F)
1943	31.1 C (88.0 F)
1944	35.0 C (95.0 F)
1945	31.1 C (88.0 F)
1946	33.9 C (93.0 F)
1947	35.0 C (95.0 F)
1948	35.0 C (95.0 F)
1949	33.9 C (93.0 F)
1950	31.7 C (89.1 F)
1951	30.0 C (86.0 F)
1952	33.9 C (93.0 F)
1953	35.6 C (96.1 F)
1954	32.2 C (90.0 F)
1955	36.7 C (98.1 F)
1956	31.7 C (89.1 F)
1957	31.7 C (89.1 F)
1958	31.1 C (88.0 F)
1959	n/a
1961	31.1 C (88.0 F)
1962	n/a

Coldest night (TNn)

The coldest night of the year at Owen Sound, 1878 to 1962. The record is -36.7 C (-34.1 F) in 1895, marked on the chart; the median year is -25.0 C (-13.0 F).

Coldest night (TNn) at Owen Sound by year
Year	Coldest night (TNn)
1878	-15.6 C (3.9 F)
1879	-28.3 C (-18.9 F)
1880	-23.3 C (-9.9 F)
1881	-30.0 C (-22.0 F)
1882	-31.1 C (-24.0 F)
1883	-28.9 C (-20.0 F)
1884	-32.2 C (-26.0 F)
1885	-35.6 C (-32.1 F)
1886	-35.0 C (-31.0 F)
1887	-30.0 C (-22.0 F)
1888	-28.9 C (-20.0 F)
1889	-26.7 C (-16.1 F)
1890	-27.8 C (-18.0 F)
1891	-21.7 C (-7.1 F)
1892	-24.4 C (-11.9 F)
1893	-27.8 C (-18.0 F)
1894	-29.4 C (-20.9 F)
1895	-36.7 C (-34.1 F)
1896	-30.6 C (-23.1 F)
1897	-27.2 C (-17.0 F)
1898	-25.0 C (-13.0 F)
1899	-34.4 C (-29.9 F)
1900	-27.2 C (-17.0 F)
1901	-24.4 C (-11.9 F)
1902	-22.2 C (-8.0 F)
1903	-24.4 C (-11.9 F)
1904	-32.2 C (-26.0 F)
1905	-31.1 C (-24.0 F)
1906	-30.0 C (-22.0 F)
1907	-28.3 C (-18.9 F)
1908	-30.0 C (-22.0 F)
1909	-20.0 C (-4.0 F)
1910	-25.6 C (-14.1 F)
1911	-21.1 C (-6.0 F)
1912	n/a
1914	7.8 C (46.0 F)
1915	-15.6 C (3.9 F)
1916	-25.6 C (-14.1 F)
1917	-35.6 C (-32.1 F)
1918	-33.9 C (-29.0 F)
1919	-21.7 C (-7.1 F)
1920	-28.9 C (-20.0 F)
1921	-20.0 C (-4.0 F)
1922	-24.4 C (-11.9 F)
1923	-24.4 C (-11.9 F)
1924	-23.3 C (-9.9 F)
1925	-28.9 C (-20.0 F)
1926	-25.0 C (-13.0 F)
1927	-26.1 C (-15.0 F)
1928	-23.3 C (-9.9 F)
1929	-20.6 C (-5.1 F)
1930	-25.6 C (-14.1 F)
1931	-20.6 C (-5.1 F)
1932	-22.2 C (-8.0 F)
1933	-26.7 C (-16.1 F)
1934	-33.9 C (-29.0 F)
1935	-24.4 C (-11.9 F)
1936	-25.0 C (-13.0 F)
1937	-17.8 C (0.0 F)
1938	-23.3 C (-9.9 F)
1939	-23.3 C (-9.9 F)
1940	-24.4 C (-11.9 F)
1941	-23.3 C (-9.9 F)
1942	-28.9 C (-20.0 F)
1943	-31.1 C (-24.0 F)
1944	-18.3 C (-0.9 F)
1945	-27.8 C (-18.0 F)
1946	-20.6 C (-5.1 F)
1947	-22.2 C (-8.0 F)
1948	-26.1 C (-15.0 F)
1949	-17.2 C (1.0 F)
1950	-21.1 C (-6.0 F)
1951	-22.8 C (-9.0 F)
1952	-23.9 C (-11.0 F)
1953	-17.8 C (0.0 F)
1954	-24.4 C (-11.9 F)
1955	-23.3 C (-9.9 F)
1956	-23.9 C (-11.0 F)
1957	-25.6 C (-14.1 F)
1958	-26.1 C (-15.0 F)
1959	n/a
1961	-7.2 C (19.0 F)
1962	n/a

Wettest day (Rx1day)

The wettest day of the year at Owen Sound, 1878 to 1962. The record is 137.9 mm (5.4 in) in 1883, marked on the chart; the median year is 42.1 mm (1.7 in).

Wettest day (Rx1day) at Owen Sound by year
Year	Wettest day (Rx1day)
1878	n/a
1879	40.6 mm (1.6 in)
1880	46.0 mm (1.8 in)
1881	57.9 mm (2.3 in)
1882	27.9 mm (1.1 in)
1883	137.9 mm (5.4 in)
1884	47.2 mm (1.9 in)
1885	96.0 mm (3.8 in)
1886	60.5 mm (2.4 in)
1887	57.2 mm (2.3 in)
1888	37.6 mm (1.5 in)
1889	56.9 mm (2.2 in)
1890	59.7 mm (2.4 in)
1891	97.0 mm (3.8 in)
1892	55.9 mm (2.2 in)
1893	71.4 mm (2.8 in)
1894	65.0 mm (2.6 in)
1895	55.6 mm (2.2 in)
1896	41.9 mm (1.6 in)
1897	72.9 mm (2.9 in)
1898	50.8 mm (2.0 in)
1899	45.7 mm (1.8 in)
1900	64.5 mm (2.5 in)
1901	56.9 mm (2.2 in)
1902	43.2 mm (1.7 in)
1903	43.9 mm (1.7 in)
1904	19.3 mm (0.8 in)
1905	33.0 mm (1.3 in)
1906	36.8 mm (1.4 in)
1907	41.7 mm (1.6 in)
1908	42.2 mm (1.7 in)
1909	60.2 mm (2.4 in)
1910	33.5 mm (1.3 in)
1911	45.7 mm (1.8 in)
1912	45.7 mm (1.8 in)
1914	30.5 mm (1.2 in)
1915	30.5 mm (1.2 in)
1916	35.6 mm (1.4 in)
1917	41.9 mm (1.6 in)
1918	31.5 mm (1.2 in)
1919	33.3 mm (1.3 in)
1920	68.6 mm (2.7 in)
1921	29.5 mm (1.2 in)
1922	41.7 mm (1.6 in)
1923	28.7 mm (1.1 in)
1924	33.5 mm (1.3 in)
1925	36.6 mm (1.4 in)
1926	61.2 mm (2.4 in)
1927	31.5 mm (1.2 in)
1928	41.7 mm (1.6 in)
1929	50.5 mm (2.0 in)
1930	23.6 mm (0.9 in)
1931	33.8 mm (1.3 in)
1932	30.2 mm (1.2 in)
1933	29.0 mm (1.1 in)
1934	40.9 mm (1.6 in)
1935	27.4 mm (1.1 in)
1936	68.3 mm (2.7 in)
1937	27.7 mm (1.1 in)
1938	29.2 mm (1.1 in)
1939	31.5 mm (1.2 in)
1940	40.9 mm (1.6 in)
1941	67.8 mm (2.7 in)
1942	53.6 mm (2.1 in)
1943	35.6 mm (1.4 in)
1944	115.1 mm (4.5 in)
1945	34.0 mm (1.3 in)
1946	22.1 mm (0.9 in)
1947	35.6 mm (1.4 in)
1948	50.5 mm (2.0 in)
1949	42.7 mm (1.7 in)
1950	69.1 mm (2.7 in)
1951	37.3 mm (1.5 in)
1952	46.2 mm (1.8 in)
1953	40.6 mm (1.6 in)
1954	129.3 mm (5.1 in)
1955	40.9 mm (1.6 in)
1956	42.7 mm (1.7 in)
1957	78.5 mm (3.1 in)
1958	31.8 mm (1.3 in)
1959	55.6 mm (2.2 in)
1961	58.9 mm (2.3 in)
1962	25.4 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Owen Sound, 1878 to 1962. The record is 231.9 mm (9.1 in) in 1883, marked on the chart; the median year is 71.2 mm (2.8 in).

Wettest five days (Rx5day) at Owen Sound by year
Year	Wettest five days (Rx5day)
1878	n/a
1879	53.1 mm (2.1 in)
1880	53.6 mm (2.1 in)
1881	91.4 mm (3.6 in)
1882	55.9 mm (2.2 in)
1883	231.9 mm (9.1 in)
1884	72.6 mm (2.9 in)
1885	102.6 mm (4.0 in)
1886	60.5 mm (2.4 in)
1887	80.1 mm (3.2 in)
1888	58.9 mm (2.3 in)
1889	81.8 mm (3.2 in)
1890	62.5 mm (2.5 in)
1891	111.0 mm (4.4 in)
1892	80.3 mm (3.2 in)
1893	71.4 mm (2.8 in)
1894	81.5 mm (3.2 in)
1895	67.2 mm (2.6 in)
1896	59.7 mm (2.4 in)
1897	109.7 mm (4.3 in)
1898	109.6 mm (4.3 in)
1899	76.2 mm (3.0 in)
1900	111.4 mm (4.4 in)
1901	102.2 mm (4.0 in)
1902	77.4 mm (3.0 in)
1903	77.1 mm (3.0 in)
1904	39.7 mm (1.6 in)
1905	61.1 mm (2.4 in)
1906	46.0 mm (1.8 in)
1907	55.9 mm (2.2 in)
1908	70.6 mm (2.8 in)
1909	92.8 mm (3.7 in)
1910	73.6 mm (2.9 in)
1911	51.5 mm (2.0 in)
1912	125.2 mm (4.9 in)
1914	103.0 mm (4.1 in)
1915	44.5 mm (1.8 in)
1916	81.4 mm (3.2 in)
1917	115.5 mm (4.5 in)
1918	38.1 mm (1.5 in)
1919	43.5 mm (1.7 in)
1920	91.5 mm (3.6 in)
1921	60.5 mm (2.4 in)
1922	70.9 mm (2.8 in)
1923	49.0 mm (1.9 in)
1924	45.1 mm (1.8 in)
1925	68.5 mm (2.7 in)
1926	72.1 mm (2.8 in)
1927	56.6 mm (2.2 in)
1928	99.4 mm (3.9 in)
1929	67.8 mm (2.7 in)
1930	37.9 mm (1.5 in)
1931	57.6 mm (2.3 in)
1932	52.8 mm (2.1 in)
1933	58.7 mm (2.3 in)
1934	47.8 mm (1.9 in)
1935	56.1 mm (2.2 in)
1936	84.2 mm (3.3 in)
1937	59.8 mm (2.4 in)
1938	53.3 mm (2.1 in)
1939	45.2 mm (1.8 in)
1940	73.1 mm (2.9 in)
1941	77.5 mm (3.1 in)
1942	83.3 mm (3.3 in)
1943	44.3 mm (1.7 in)
1944	119.2 mm (4.7 in)
1945	76.2 mm (3.0 in)
1946	46.6 mm (1.8 in)
1947	91.4 mm (3.6 in)
1948	62.3 mm (2.5 in)
1949	75.2 mm (3.0 in)
1950	85.1 mm (3.4 in)
1951	48.8 mm (1.9 in)
1952	53.8 mm (2.1 in)
1953	69.8 mm (2.7 in)
1954	131.1 mm (5.2 in)
1955	68.6 mm (2.7 in)
1956	76.6 mm (3.0 in)
1957	96.5 mm (3.8 in)
1958	79.9 mm (3.1 in)
1959	72.1 mm (2.8 in)
1961	91.1 mm (3.6 in)
1962	63.5 mm (2.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Owen Sound, 1878 to 1962. The record is 48 days in 1914, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Owen Sound by year
Year	Longest dry spell (CDD)
1878	n/a
1879	15 days
1880	14 days
1881	36 days
1882	18 days
1883	10 days
1884	14 days
1885	18 days
1886	18 days
1887	22 days
1888	29 days
1889	18 days
1890	10 days
1891	20 days
1892	13 days
1893	14 days
1894	11 days
1895	15 days
1896	17 days
1897	20 days
1898	19 days
1899	15 days
1900	18 days
1901	12 days
1902	11 days
1903	13 days
1904	10 days
1905	11 days
1906	16 days
1907	12 days
1908	30 days
1909	13 days
1910	19 days
1911	15 days
1912	10 days
1914	48 days
1915	24 days
1916	19 days
1917	22 days
1918	16 days
1919	19 days
1920	15 days
1921	21 days
1922	19 days
1923	19 days
1924	26 days
1925	25 days
1926	20 days
1927	18 days
1928	11 days
1929	11 days
1930	18 days
1931	12 days
1932	16 days
1933	16 days
1934	18 days
1935	17 days
1936	23 days
1937	14 days
1938	12 days
1939	20 days
1940	12 days
1941	24 days
1942	16 days
1943	12 days
1944	15 days
1945	14 days
1946	17 days
1947	18 days
1948	16 days
1949	25 days
1950	16 days
1951	12 days
1952	17 days
1953	12 days
1954	26 days
1955	21 days
1956	14 days
1957	20 days
1958	19 days
1959	13 days
1961	15 days
1962	5 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

56 years with a frost

Across 56 years with a frost, the median last spring frost at Owen Sound falls on 17 May and the median first autumn frost on 7 October, which leaves a median of 143 days between them.

Fitted over all years, the growing season changes by +2.4 days per decade at this station.

Frost dates and growing season at Owen Sound
Measure	Median, all years	Earliest period	Recent period (1909 to 1957)	Recent against earliest	Fitted trend
Last spring frost	17 May	n/a	17 May	n/a	-1.1 days per decade
First autumn frost	7 October	n/a	9 October	n/a	+1.3 days per decade
Growing days	143 days	n/a	144 days	n/a	+2.4 days per decade

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.

Rainfall Return Levels

69 years, 1879 to 1958

A day with at least 43.3 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 143.6 mm (5.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Owen Sound: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	43.3 mm (1.7 in)
5 years	61.9 mm (2.4 in)
10 years	77.0 mm (3.0 in)
25 years	99.9 mm (3.9 in)
50 years	120.2 mm (4.7 in)
100 years	143.6 mm (5.7 in)	Longer than the 69 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 69 years of values from 1879 to 1958.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 137.9 mm (5.4 in) in 1883; 129.3 mm (5.1 in) in 1954; 115.1 mm (4.5 in) in 1944.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Owen Sound standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Owen Sound 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).