Wallaceburg Weather Records (CA006139265)

Record envelope, standing records and threshold days for Wallaceburg (CA006139265), Ontario, Canada, with 93 years of record.

Key Facts for Wallaceburg

Wallaceburg (CA006139265) is a weather station in Ontario, Canada at 42.58 latitude and -82.40 longitude, 177 m (581 ft) above sea level.
The station reports from 1905 to 1997, 93 years of record.
1,464 records set at Wallaceburg still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Wallaceburg set a monthly record low maximum temperature of -16.0 C (3.2 F) on 30 December 1983.

About the Station

Location: Ontario, Canada, 42.58 latitude, -82.40 longitude.
Elevation: 177 m (581 ft).
Period of record: 1905 to 1997, 93 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 Wallaceburg. 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 Wallaceburg, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-30.0 C (-22.0 F)	n/a	n/a
Feb	16.1 C (61.0 F)	-30.0 C (-22.0 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-21.7 C (-7.1 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-12.2 C (10.0 F)	n/a	n/a
May	33.3 C (91.9 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	38.3 C (100.9 F)	1.1 C (34.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	40.0 C (104.0 F)	2.2 C (36.0 F)	n/a	n/a
Sep	37.2 C (99.0 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-7.8 C (18.0 F)	n/a	n/a
Nov	26.1 C (79.0 F)	-15.6 C (3.9 F)	n/a	n/a
Dec	18.3 C (64.9 F)	-23.9 C (-11.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Wallaceburg still stand. 1934 holds the most, with 46.

Standing records at Wallaceburg by the year they were set
Year set	Standing records
1905	11
1906	21
1907	14
1908	21
1909	32
1910	16
1911	28
1912	26
1913	26
1914	22
1915	36
1916	28
1917	42
1918	35
1919	17
1920	1
1921	34
1922	6
1923	9
1924	32
1925	14
1926	9
1927	13
1928	2
1929	12
1930	31
1931	31
1932	20
1933	26
1934	46
1935	12
1936	41
1937	7
1938	25
1939	20
1940	24
1941	18
1942	23
1943	26
1944	28
1945	31
1946	21
1947	25
1948	13
1949	16
1950	22
1951	23
1952	13
1953	20
1954	19
1955	18
1956	11
1957	14
1958	10
1959	14
1960	19
1961	12
1962	14
1963	19
1964	8
1965	20
1966	2
1970	7
1971	10
1972	14
1973	12
1974	17
1975	13
1976	15
1977	12
1978	16
1979	15
1980	13
1981	15
1982	31
1983	25

Wettest Day of Each Month

Sep: 100.3 mm (3.9 in)

The wettest day on record for each calendar month at Wallaceburg. The most was 100.3 mm (3.9 in) on 24 September 1930.

Record daily precipitation for each month at Wallaceburg
Month	Record daily precipitation (mm)	Date
Jan	44.5 mm (1.8 in)	12 January 1960
Feb	56.4 mm (2.2 in)	12 February 1938
Mar	46.0 mm (1.8 in)	6 March 1956
Apr	53.6 mm (2.1 in)	28 April 1956
May	52.0 mm (2.0 in)	25 May 1979
Jun	65.5 mm (2.6 in)	28 June 1973
Jul	58.9 mm (2.3 in)	29 July 1909
Aug	70.0 mm (2.8 in)	1 August 1983
Sep	100.3 mm (3.9 in)	24 September 1930
Oct	71.1 mm (2.8 in)	11 October 1949
Nov	54.6 mm (2.1 in)	6 November 1912
Dec	30.2 mm (1.2 in)	12 December 1972

Period of Record Coverage

1905 to 1983

76 years of record at Wallaceburg, 1905 to 1983. 28 years have data for under 90 percent of days and are left out of rankings: 1905, 1909, 1911, 1912, 1919, 1921, 1922, 1925 and others.

Days with data per year at Wallaceburg
Year	Days with data	Share of year	Complete
1905	119	33%	No
1906	364	100%	Yes
1907	336	92%	Yes
1908	364	99%	Yes
1909	319	87%	No
1910	343	94%	Yes
1911	324	89%	No
1912	326	89%	No
1913	344	94%	Yes
1914	360	99%	Yes
1915	365	100%	Yes
1916	350	96%	Yes
1917	365	100%	Yes
1918	363	99%	Yes
1919	316	87%	No
1920	331	90%	Yes
1921	317	87%	No
1922	304	83%	No
1923	357	98%	Yes
1924	352	96%	Yes
1925	275	75%	No
1926	301	82%	No
1927	328	90%	No
1928	273	75%	No
1929	359	98%	Yes
1930	330	90%	Yes
1931	320	88%	No
1932	310	85%	No
1933	299	82%	No
1934	304	83%	No
1935	303	83%	No
1936	335	92%	Yes
1937	154	42%	No
1938	365	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	359	98%	Yes
1944	362	99%	Yes
1945	364	100%	Yes
1946	363	99%	Yes
1947	359	98%	Yes
1948	362	99%	Yes
1949	345	95%	Yes
1950	362	99%	Yes
1951	365	100%	Yes
1952	365	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	335	92%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	365	100%	Yes
1961	361	99%	Yes
1962	326	89%	No
1963	359	98%	Yes
1964	181	49%	No
1965	293	80%	No
1966	58	16%	No
1970	233	64%	No
1971	351	96%	Yes
1972	365	100%	Yes
1973	357	98%	Yes
1974	304	83%	No
1975	261	72%	No
1976	295	81%	No
1977	314	86%	No
1978	326	89%	No
1979	313	86%	No
1980	334	91%	Yes
1981	339	93%	Yes
1982	339	93%	Yes
1983	338	93%	Yes

Latest Records

Latest records at Wallaceburg
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 1983	Wallaceburg, CA	monthly low max	-16.0 C (3.2 F)	1.6 C (2.9 F)	66 years	39 of 100 (Notable)
30 December 1983	Wallaceburg, CA	daily low min	-23.0 C (-9.4 F)	1.9 C (3.4 F)	72 years	31 of 100 (Routine)
28 December 1983	Wallaceburg, CA	daily snowfall	10.0 cm (3.9 in)	7.5 cm (3.0 in)	73 years	47 of 100 (Notable)
25 December 1983	Wallaceburg, CA	daily low max	-13.0 C (8.6 F)	4.0 C (7.2 F)	2 years	14 of 100 (Routine)
24 December 1983	Wallaceburg, CA	daily low max	-14.0 C (6.8 F)	6.2 C (11.2 F)	73 years	40 of 100 (Notable)
5 December 1983	Wallaceburg, CA	daily rain	18.5 mm (0.7 in)	5.5 mm (0.22 in)	5 years	17 of 100 (Routine)
10 November 1983	Wallaceburg, CA	daily rain	25.2 mm (1.0 in)	2.8 mm (0.11 in)	72 years	31 of 100 (Routine)
4 October 1983	Wallaceburg, CA	monthly high min (Tie)	19.0 C (66.2 F)	tie	3 years	4 of 100 (Routine)
3 October 1983	Wallaceburg, CA	daily high min	17.0 C (62.6 F)	0.3 C (0.5 F)	56 years	23 of 100 (Routine)
19 September 1983	Wallaceburg, CA	daily high min	19.5 C (67.1 F)	0.6 C (1.1 F)	34 years	18 of 100 (Routine)
10 September 1983	Wallaceburg, CA	daily high max	33.5 C (92.3 F)	0.2 C (0.4 F)	52 years	22 of 100 (Routine)
10 September 1983	Wallaceburg, CA	daily high min	23.0 C (73.4 F)	0.8 C (1.4 F)	36 years	18 of 100 (Routine)
6 September 1983	Wallaceburg, CA	daily high min	23.5 C (74.3 F)	1.8 C (3.2 F)	46 years	24 of 100 (Routine)
20 August 1983	Wallaceburg, CA	daily high min	23.5 C (74.3 F)	0.7 C (1.3 F)	66 years	28 of 100 (Routine)
1 August 1983	Wallaceburg, CA	monthly rain	70.0 mm (2.8 in)	7.0 mm (0.28 in)	45 years	36 of 100 (Notable)
16 July 1983	Wallaceburg, CA	daily high max	34.0 C (93.2 F)	0.7 C (1.3 F)	56 years	26 of 100 (Routine)
6 July 1983	Wallaceburg, CA	daily low max	20.5 C (68.9 F)	0.6 C (1.1 F)	69 years	28 of 100 (Routine)
27 June 1983	Wallaceburg, CA	daily rain	22.0 mm (0.9 in)	1.7 mm (0.07 in)	61 years	20 of 100 (Routine)
1 May 1983	Wallaceburg, CA	daily rain	48.0 mm (1.9 in)	15.0 mm (0.6 in)	36 years	34 of 100 (Routine)
19 April 1983	Wallaceburg, CA	daily low min	-4.0 C (24.8 F)	0.7 C (1.3 F)	69 years	28 of 100 (Routine)

Climate Trend

41 complete years, 1906 to 1973

One stripe for each of 41 complete years at Wallaceburg, 1906 to 1973. Blue stripes are years cooler than the station's own mean of 8.9 C (48.0 F); red stripes are warmer. The coolest year was 1917, at 6.1 C (42.9 F), and the warmest was 1949, at 10.2 C (50.3 F). The strongest colour marks a difference of 2.9 C (5.2 F).

Annual mean temperature at Wallaceburg as warming stripes, 1906 to 1973
Year	Annual mean temperature	Difference from the station mean
1906	9.2 C	+0.27 C
1908	8.5 C	-0.42 C
1910	8.3 C	-0.55 C
1913	9.7 C	+0.81 C
1914	8.6 C	-0.32 C
1915	8.2 C	-0.71 C
1917	6.1 C	-2.82 C
1918	8.4 C	-0.53 C
1924	9.9 C	+0.97 C
1929	8.2 C	-0.70 C
1931	10.1 C	+1.18 C
1932	9.5 C	+0.59 C
1933	9.7 C	+0.77 C
1934	8.0 C	-0.85 C
1935	8.3 C	-0.64 C
1936	8.4 C	-0.54 C
1938	9.8 C	+0.89 C
1939	9.7 C	+0.83 C
1940	8.2 C	-0.67 C
1941	9.7 C	+0.82 C
1942	9.0 C	+0.08 C
1943	8.2 C	-0.70 C
1945	8.3 C	-0.57 C
1946	9.7 C	+0.78 C
1947	9.0 C	+0.07 C
1948	8.9 C	-0.01 C
1949	10.2 C	+1.26 C
1950	8.3 C	-0.58 C
1951	8.6 C	-0.29 C
1952	9.8 C	+0.89 C
1953	10.0 C	+1.12 C
1954	9.4 C	+0.51 C
1956	8.7 C	-0.15 C
1957	8.8 C	-0.08 C
1958	8.4 C	-0.50 C
1959	9.1 C	+0.20 C
1960	8.6 C	-0.32 C
1961	9.1 C	+0.19 C
1963	8.3 C	-0.55 C
1972	8.0 C	-0.87 C
1973	10.0 C	+1.12 C

The fitted trend in annual mean temperature here over 1906 to 1973 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Wallaceburg
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.1 to 0.4) per decade	1906 to 1973	41	Not clearly different from zero
Mean daily maximum	-0.1 C (-0.2 to 0.1) per decade	-0.1 F (-0.4 to 0.1) per decade	1906 to 1973	41	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.4) per decade	0.4 F (0.1 to 0.8) per decade	1906 to 1973	41	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

1905 to 1983

Yearly extremes at Wallaceburg: 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)	1918	34.2 C (93.6 F)	76
Coldest night (TNn)	-30.0 C (-22.0 F)	1912	-21.1 C (-6.0 F)	76
Wettest day (Rx1day)	100.3 mm (3.9 in)	1930	42.8 mm (1.7 in)	76
Wettest five days (Rx5day)	128.2 mm (5.0 in)	1929	63.2 mm (2.5 in)	76
Longest dry spell (CDD)	44 days	1936	18 days	76

Hottest day (TXx)

The hottest day of the year at Wallaceburg, 1905 to 1983. The record is 40.0 C (104.0 F) in 1918, marked on the chart; the median year is 34.2 C (93.6 F).

Hottest day (TXx) at Wallaceburg by year
Year	Hottest day (TXx)
1905	31.7 C (89.1 F)
1906	32.8 C (91.0 F)
1907	31.1 C (88.0 F)
1908	33.9 C (93.0 F)
1909	31.7 C (89.1 F)
1910	35.0 C (95.0 F)
1911	37.2 C (99.0 F)
1912	32.8 C (91.0 F)
1913	33.3 C (91.9 F)
1914	34.4 C (93.9 F)
1915	30.6 C (87.1 F)
1916	36.7 C (98.1 F)
1917	35.6 C (96.1 F)
1918	40.0 C (104.0 F)
1919	35.0 C (95.0 F)
1920	32.8 C (91.0 F)
1921	37.2 C (99.0 F)
1922	32.8 C (91.0 F)
1923	34.4 C (93.9 F)
1924	33.9 C (93.0 F)
1925	36.1 C (97.0 F)
1926	36.7 C (98.1 F)
1927	35.0 C (95.0 F)
1928	32.8 C (91.0 F)
1929	34.4 C (93.9 F)
1930	35.0 C (95.0 F)
1931	36.7 C (98.1 F)
1932	33.9 C (93.0 F)
1933	36.1 C (97.0 F)
1934	38.3 C (100.9 F)
1935	35.6 C (96.1 F)
1936	38.9 C (102.0 F)
1937	33.3 C (91.9 F)
1938	32.8 C (91.0 F)
1939	37.2 C (99.0 F)
1940	36.1 C (97.0 F)
1941	37.2 C (99.0 F)
1942	35.0 C (95.0 F)
1943	34.4 C (93.9 F)
1944	37.2 C (99.0 F)
1945	32.8 C (91.0 F)
1946	35.0 C (95.0 F)
1947	34.4 C (93.9 F)
1948	35.6 C (96.1 F)
1949	35.0 C (95.0 F)
1950	32.8 C (91.0 F)
1951	31.1 C (88.0 F)
1952	35.0 C (95.0 F)
1953	36.1 C (97.0 F)
1954	33.3 C (91.9 F)
1955	35.6 C (96.1 F)
1956	33.9 C (93.0 F)
1957	33.3 C (91.9 F)
1958	31.1 C (88.0 F)
1959	32.8 C (91.0 F)
1960	32.8 C (91.0 F)
1961	32.8 C (91.0 F)
1962	33.3 C (91.9 F)
1963	34.4 C (93.9 F)
1964	33.9 C (93.0 F)
1965	34.4 C (93.9 F)
1966	8.9 C (48.0 F)
1970	32.8 C (91.0 F)
1971	37.8 C (100.0 F)
1972	33.9 C (93.0 F)
1973	35.0 C (95.0 F)
1974	35.0 C (95.0 F)
1975	33.9 C (93.0 F)
1976	32.8 C (91.0 F)
1977	36.0 C (96.8 F)
1978	34.0 C (93.2 F)
1979	33.0 C (91.4 F)
1980	32.0 C (89.6 F)
1981	34.0 C (93.2 F)
1982	32.0 C (89.6 F)
1983	34.0 C (93.2 F)

Coldest night (TNn)

The coldest night of the year at Wallaceburg, 1905 to 1983. The record is -30.0 C (-22.0 F) in 1912, marked on the chart; the median year is -21.1 C (-6.0 F).

Coldest night (TNn) at Wallaceburg by year
Year	Coldest night (TNn)
1905	-10.6 C (12.9 F)
1906	-21.1 C (-6.0 F)
1907	-22.2 C (-8.0 F)
1908	-23.9 C (-11.0 F)
1909	-18.9 C (-2.0 F)
1910	-21.1 C (-6.0 F)
1911	-20.0 C (-4.0 F)
1912	-30.0 C (-22.0 F)
1913	-21.7 C (-7.1 F)
1914	-22.8 C (-9.0 F)
1915	-30.0 C (-22.0 F)
1916	-22.2 C (-8.0 F)
1917	-27.8 C (-18.0 F)
1918	-30.0 C (-22.0 F)
1919	-23.9 C (-11.0 F)
1920	-14.4 C (6.1 F)
1921	-18.3 C (-0.9 F)
1922	-21.1 C (-6.0 F)
1923	-13.3 C (8.1 F)
1924	-21.7 C (-7.1 F)
1925	-21.1 C (-6.0 F)
1926	-18.3 C (-0.9 F)
1927	-21.7 C (-7.1 F)
1928	-21.1 C (-6.0 F)
1929	-27.8 C (-18.0 F)
1930	-21.1 C (-6.0 F)
1931	-16.7 C (1.9 F)
1932	-15.6 C (3.9 F)
1933	-25.0 C (-13.0 F)
1934	-27.8 C (-18.0 F)
1935	-21.1 C (-6.0 F)
1936	-22.2 C (-8.0 F)
1937	-17.8 C (0.0 F)
1938	-18.3 C (-0.9 F)
1939	-18.9 C (-2.0 F)
1940	-22.2 C (-8.0 F)
1941	-13.9 C (7.0 F)
1942	-21.1 C (-6.0 F)
1943	-21.7 C (-7.1 F)
1944	-23.9 C (-11.0 F)
1945	-21.7 C (-7.1 F)
1946	-20.6 C (-5.1 F)
1947	-17.2 C (1.0 F)
1948	-23.3 C (-9.9 F)
1949	-16.1 C (3.0 F)
1950	-19.4 C (-2.9 F)
1951	-23.3 C (-9.9 F)
1952	-13.9 C (7.0 F)
1953	-17.2 C (1.0 F)
1954	-18.9 C (-2.0 F)
1955	-17.8 C (0.0 F)
1956	-18.9 C (-2.0 F)
1957	-23.9 C (-11.0 F)
1958	-21.7 C (-7.1 F)
1959	-22.2 C (-8.0 F)
1960	-19.4 C (-2.9 F)
1961	-23.9 C (-11.0 F)
1962	-23.3 C (-9.9 F)
1963	-25.0 C (-13.0 F)
1964	-21.1 C (-6.0 F)
1965	-18.3 C (-0.9 F)
1966	-22.2 C (-8.0 F)
1970	-14.4 C (6.1 F)
1971	-21.1 C (-6.0 F)
1972	-22.8 C (-9.0 F)
1973	-20.0 C (-4.0 F)
1974	-21.7 C (-7.1 F)
1975	-15.6 C (3.9 F)
1976	-23.9 C (-11.0 F)
1977	-21.1 C (-6.0 F)
1978	-22.0 C (-7.6 F)
1979	-24.0 C (-11.2 F)
1980	-18.0 C (-0.4 F)
1981	-23.0 C (-9.4 F)
1982	-25.0 C (-13.0 F)
1983	-23.0 C (-9.4 F)

Wettest day (Rx1day)

The wettest day of the year at Wallaceburg, 1905 to 1983. The record is 100.3 mm (3.9 in) in 1930, marked on the chart; the median year is 42.8 mm (1.7 in).

Wettest day (Rx1day) at Wallaceburg by year
Year	Wettest day (Rx1day)
1905	61.5 mm (2.4 in)
1906	41.1 mm (1.6 in)
1907	33.0 mm (1.3 in)
1908	48.3 mm (1.9 in)
1909	58.9 mm (2.3 in)
1910	40.1 mm (1.6 in)
1911	45.7 mm (1.8 in)
1912	54.6 mm (2.1 in)
1913	41.9 mm (1.6 in)
1914	44.5 mm (1.8 in)
1915	49.3 mm (1.9 in)
1916	47.0 mm (1.9 in)
1917	31.8 mm (1.3 in)
1918	50.8 mm (2.0 in)
1919	45.7 mm (1.8 in)
1920	50.8 mm (2.0 in)
1921	57.2 mm (2.3 in)
1922	38.1 mm (1.5 in)
1923	38.1 mm (1.5 in)
1924	28.2 mm (1.1 in)
1925	50.8 mm (2.0 in)
1926	43.7 mm (1.7 in)
1927	33.0 mm (1.3 in)
1928	57.2 mm (2.3 in)
1929	47.0 mm (1.9 in)
1930	100.3 mm (3.9 in)
1931	27.9 mm (1.1 in)
1932	44.5 mm (1.8 in)
1933	24.4 mm (1.0 in)
1934	41.1 mm (1.6 in)
1935	36.8 mm (1.4 in)
1936	37.6 mm (1.5 in)
1937	63.0 mm (2.5 in)
1938	56.4 mm (2.2 in)
1939	37.6 mm (1.5 in)
1940	34.8 mm (1.4 in)
1941	40.9 mm (1.6 in)
1942	41.1 mm (1.6 in)
1943	32.0 mm (1.3 in)
1944	52.3 mm (2.1 in)
1945	36.1 mm (1.4 in)
1946	53.1 mm (2.1 in)
1947	55.1 mm (2.2 in)
1948	49.5 mm (1.9 in)
1949	71.1 mm (2.8 in)
1950	46.5 mm (1.8 in)
1951	48.0 mm (1.9 in)
1952	31.0 mm (1.2 in)
1953	28.7 mm (1.1 in)
1954	39.4 mm (1.6 in)
1955	34.5 mm (1.4 in)
1956	53.6 mm (2.1 in)
1957	49.8 mm (2.0 in)
1958	39.1 mm (1.5 in)
1959	44.5 mm (1.8 in)
1960	46.2 mm (1.8 in)
1961	34.8 mm (1.4 in)
1962	51.6 mm (2.0 in)
1963	30.0 mm (1.2 in)
1964	27.9 mm (1.1 in)
1965	40.6 mm (1.6 in)
1966	11.4 mm (0.4 in)
1970	29.7 mm (1.2 in)
1971	40.4 mm (1.6 in)
1972	58.9 mm (2.3 in)
1973	65.5 mm (2.6 in)
1974	28.2 mm (1.1 in)
1975	35.8 mm (1.4 in)
1976	46.5 mm (1.8 in)
1977	35.5 mm (1.4 in)
1978	26.2 mm (1.0 in)
1979	52.0 mm (2.0 in)
1980	37.5 mm (1.5 in)
1981	69.0 mm (2.7 in)
1982	32.3 mm (1.3 in)
1983	70.0 mm (2.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Wallaceburg, 1905 to 1983. The record is 128.2 mm (5.0 in) in 1929, marked on the chart; the median year is 63.2 mm (2.5 in).

Wettest five days (Rx5day) at Wallaceburg by year
Year	Wettest five days (Rx5day)
1905	63.1 mm (2.5 in)
1906	49.3 mm (1.9 in)
1907	46.1 mm (1.8 in)
1908	73.5 mm (2.9 in)
1909	58.9 mm (2.3 in)
1910	79.3 mm (3.1 in)
1911	78.7 mm (3.1 in)
1912	61.2 mm (2.4 in)
1913	84.3 mm (3.3 in)
1914	69.0 mm (2.7 in)
1915	60.5 mm (2.4 in)
1916	84.3 mm (3.3 in)
1917	60.2 mm (2.4 in)
1918	56.2 mm (2.2 in)
1919	49.3 mm (1.9 in)
1920	88.9 mm (3.5 in)
1921	57.2 mm (2.3 in)
1922	53.1 mm (2.1 in)
1923	63.5 mm (2.5 in)
1924	48.8 mm (1.9 in)
1925	88.9 mm (3.5 in)
1926	105.7 mm (4.2 in)
1927	65.5 mm (2.6 in)
1928	74.5 mm (2.9 in)
1929	128.2 mm (5.0 in)
1930	100.3 mm (3.9 in)
1931	50.9 mm (2.0 in)
1932	67.4 mm (2.7 in)
1933	42.2 mm (1.7 in)
1934	41.1 mm (1.6 in)
1935	48.7 mm (1.9 in)
1936	56.9 mm (2.2 in)
1937	99.9 mm (3.9 in)
1938	65.3 mm (2.6 in)
1939	68.1 mm (2.7 in)
1940	85.2 mm (3.4 in)
1941	52.6 mm (2.1 in)
1942	61.2 mm (2.4 in)
1943	62.5 mm (2.5 in)
1944	55.3 mm (2.2 in)
1945	99.3 mm (3.9 in)
1946	77.2 mm (3.0 in)
1947	97.8 mm (3.9 in)
1948	106.6 mm (4.2 in)
1949	71.1 mm (2.8 in)
1950	119.9 mm (4.7 in)
1951	51.3 mm (2.0 in)
1952	46.5 mm (1.8 in)
1953	41.4 mm (1.6 in)
1954	121.7 mm (4.8 in)
1955	60.7 mm (2.4 in)
1956	115.0 mm (4.5 in)
1957	60.7 mm (2.4 in)
1958	65.5 mm (2.6 in)
1959	69.4 mm (2.7 in)
1960	68.1 mm (2.7 in)
1961	54.7 mm (2.2 in)
1962	76.5 mm (3.0 in)
1963	39.2 mm (1.5 in)
1964	43.1 mm (1.7 in)
1965	58.7 mm (2.3 in)
1966	11.4 mm (0.4 in)
1970	42.2 mm (1.7 in)
1971	57.2 mm (2.3 in)
1972	72.6 mm (2.9 in)
1973	98.5 mm (3.9 in)
1974	51.5 mm (2.0 in)
1975	58.0 mm (2.3 in)
1976	63.3 mm (2.5 in)
1977	59.2 mm (2.3 in)
1978	45.5 mm (1.8 in)
1979	82.0 mm (3.2 in)
1980	79.9 mm (3.1 in)
1981	84.7 mm (3.3 in)
1982	59.4 mm (2.3 in)
1983	97.3 mm (3.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Wallaceburg, 1905 to 1983. The record is 44 days in 1936, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Wallaceburg by year
Year	Longest dry spell (CDD)
1905	19 days
1906	40 days
1907	20 days
1908	39 days
1909	34 days
1910	30 days
1911	19 days
1912	24 days
1913	25 days
1914	23 days
1915	18 days
1916	26 days
1917	22 days
1918	18 days
1919	21 days
1920	17 days
1921	28 days
1922	10 days
1923	11 days
1924	26 days
1925	14 days
1926	8 days
1927	10 days
1928	11 days
1929	17 days
1930	18 days
1931	18 days
1932	31 days
1933	25 days
1934	19 days
1935	17 days
1936	44 days
1937	27 days
1938	16 days
1939	16 days
1940	12 days
1941	19 days
1942	21 days
1943	20 days
1944	26 days
1945	12 days
1946	13 days
1947	18 days
1948	20 days
1949	18 days
1950	13 days
1951	11 days
1952	17 days
1953	22 days
1954	15 days
1955	17 days
1956	18 days
1957	23 days
1958	30 days
1959	12 days
1960	12 days
1961	26 days
1962	9 days
1963	29 days
1964	10 days
1965	14 days
1966	17 days
1970	17 days
1971	14 days
1972	14 days
1973	28 days
1974	16 days
1975	15 days
1976	19 days
1977	17 days
1978	19 days
1979	16 days
1980	25 days
1981	16 days
1982	15 days
1983	17 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

41 years with a frost

Across 41 years with a frost, the median last spring frost at Wallaceburg falls on 7 May and the median first autumn frost on 15 October, which leaves a median of 164 days between them.

Fitted over all years, the growing season changes by +3.7 days per decade at this station.

Frost dates and growing season at Wallaceburg
Measure	Median, all years	Earliest period	Recent period (1932 to 1973)	Recent against earliest	Fitted trend
Last spring frost	7 May	n/a	5 May	n/a	-2.2 days per decade
First autumn frost	15 October	n/a	17 October	n/a	+1.4 days per decade
Growing days	164 days	n/a	166 days	n/a	+3.7 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

63 years, 1906 to 1983

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 85.1 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Wallaceburg: 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	54.5 mm (2.1 in)
10 years	62.0 mm (2.4 in)
25 years	71.4 mm (2.8 in)
50 years	78.3 mm (3.1 in)
100 years	85.1 mm (3.4 in)	Longer than the 63 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, 63 years of values from 1906 to 1983.

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: 100.3 mm (3.9 in) in 1930; 71.1 mm (2.8 in) in 1949; 70.0 mm (2.8 in) in 1983.

Station Changes

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

Download the Data

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