Wawaitin Weather Records (CA006079415)

Record envelope, standing records and threshold days for Wawaitin (CA006079415), Ontario, Canada, with 53 years of record.

Key Facts for Wawaitin

Wawaitin (CA006079415) is a weather station in Ontario, Canada at 48.35 latitude and -81.40 longitude, 271 m (889 ft) above sea level.
The station reports from 1913 to 1965, 53 years of record.
1,464 records set at Wawaitin still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Wawaitin set a daily record precipitation of 39.6 mm (1.6 in) on 16 May 1965.

About the Station

Location: Ontario, Canada, 48.35 latitude, -81.40 longitude.
Elevation: 271 m (889 ft).
Period of record: 1913 to 1965, 53 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 Wawaitin. 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 Wawaitin, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	8.3 C (46.9 F)	-48.3 C (-54.9 F)	n/a	n/a
Feb	12.8 C (55.0 F)	-47.2 C (-53.0 F)	n/a	n/a
Mar	23.3 C (73.9 F)	-44.4 C (-47.9 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-32.8 C (-27.0 F)	n/a	n/a
May	33.9 C (93.0 F)	-16.7 C (1.9 F)	n/a	n/a
Jun	36.1 C (97.0 F)	-5.6 C (21.9 F)	n/a	n/a
Jul	38.3 C (100.9 F)	-2.8 C (27.0 F)	n/a	n/a
Aug	35.0 C (95.0 F)	-4.4 C (24.1 F)	n/a	n/a
Sep	33.9 C (93.0 F)	-8.3 C (17.1 F)	n/a	n/a
Oct	28.3 C (82.9 F)	-18.9 C (-2.0 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-36.7 C (-34.1 F)	n/a	n/a
Dec	11.7 C (53.1 F)	-43.9 C (-47.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Wawaitin still stand. 1920 holds the most, with 57.

Standing records at Wawaitin by the year they were set
Year set	Standing records
1913	14
1914	39
1915	33
1916	36
1917	26
1918	31
1919	47
1920	57
1921	45
1922	34
1923	17
1924	17
1925	45
1926	32
1927	30
1928	30
1929	23
1930	30
1931	26
1932	39
1933	32
1934	38
1935	17
1936	41
1937	27
1938	28
1939	26
1940	29
1941	29
1942	28
1943	21
1944	37
1945	38
1946	28
1947	37
1948	16
1949	10
1950	23
1951	31
1952	25
1953	30
1954	19
1955	19
1956	31
1957	19
1958	21
1960	10
1961	12
1962	23
1963	25
1964	34
1965	9

All-Time Record Progression

1 new records

1 all-time records were set at Wawaitin between 9 August 1944 and 9 August 1944. Each dot is a new record.

Wettest Day of Each Month

Jul: 110.7 mm (4.4 in)

The wettest day on record for each calendar month at Wawaitin. The most was 110.7 mm (4.4 in) on 26 July 1937.

Record daily precipitation for each month at Wawaitin
Month	Record daily precipitation (mm)	Date
Jan	48.3 mm (1.9 in)	21 January 1959
Feb	31.5 mm (1.2 in)	15 February 1945
Mar	67.3 mm (2.6 in)	9 March 1942
Apr	35.1 mm (1.4 in)	24 April 1921
May	43.2 mm (1.7 in)	24 May 1946
Jun	64.0 mm (2.5 in)	23 June 1961
Jul	110.7 mm (4.4 in)	26 July 1937
Aug	52.1 mm (2.1 in)	21 August 1928
Sep	70.9 mm (2.8 in)	11 September 1947
Oct	57.7 mm (2.3 in)	18 October 1951
Nov	41.4 mm (1.6 in)	8 November 1957
Dec	35.6 mm (1.4 in)	18 December 1921

Period of Record Coverage

1913 to 1965

52 years of record at Wawaitin, 1913 to 1965. 7 years have data for under 90 percent of days and are left out of rankings: 1913, 1923, 1931, 1950, 1951, 1953, 1965.

Days with data per year at Wawaitin
Year	Days with data	Share of year	Complete
1913	181	50%	No
1914	365	100%	Yes
1915	365	100%	Yes
1916	366	100%	Yes
1917	365	100%	Yes
1918	365	100%	Yes
1919	365	100%	Yes
1920	366	100%	Yes
1921	365	100%	Yes
1922	365	100%	Yes
1923	274	75%	No
1924	366	100%	Yes
1925	365	100%	Yes
1926	334	92%	Yes
1927	364	100%	Yes
1928	366	100%	Yes
1929	360	99%	Yes
1930	365	100%	Yes
1931	280	77%	No
1932	366	100%	Yes
1933	365	100%	Yes
1934	365	100%	Yes
1935	365	100%	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	361	99%	Yes
1943	364	100%	Yes
1944	365	100%	Yes
1945	365	100%	Yes
1946	364	100%	Yes
1947	330	90%	Yes
1948	366	100%	Yes
1949	352	96%	Yes
1950	183	50%	No
1951	175	48%	No
1952	335	92%	Yes
1953	304	83%	No
1954	364	100%	Yes
1955	334	92%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1960	366	100%	Yes
1961	361	99%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	341	93%	Yes
1965	175	48%	No

Latest Records

Latest records at Wawaitin
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 May 1965	Wawaitin, CA	daily rain	39.6 mm (1.6 in)	27.4 mm (1.1 in)	24 years	52 of 100 (Notable)
15 May 1965	Wawaitin, CA	daily rain	31.8 mm (1.3 in)	9.7 mm (0.38 in)	4 years	20 of 100 (Routine)
9 May 1965	Wawaitin, CA	daily high min	8.9 C (48.0 F)	2.2 C (4.0 F)	44 years	22 of 100 (Routine)
8 May 1965	Wawaitin, CA	daily high min	11.1 C (52.0 F)	0.5 C (0.9 F)	0 years	5 of 100 (Routine)
24 April 1965	Wawaitin, CA	daily low min (Tie)	-14.4 C (6.1 F)	tie	32 years	3 of 100 (Routine)
21 March 1965	Wawaitin, CA	daily low max	-8.9 C (16.0 F)	2.2 C (4.0 F)	48 years	22 of 100 (Routine)
5 March 1965	Wawaitin, CA	daily high min (Tie)	-3.9 C (25.0 F)	tie	7 years	1 of 100 (Routine)
3 March 1965	Wawaitin, CA	daily high max (Tie)	8.3 C (46.9 F)	tie	24 years	3 of 100 (Routine)
25 February 1965	Wawaitin, CA	daily rain	31.2 mm (1.2 in)	16.0 mm (0.6 in)	47 years	58 of 100 (Notable)
25 February 1965	Wawaitin, CA	daily snowfall	31.2 cm (12.3 in)	16.0 cm (6.3 in)	47 years	58 of 100 (Notable)
22 February 1965	Wawaitin, CA	daily low max	-18.3 C (-0.9 F)	1.1 C (2.0 F)	47 years	20 of 100 (Routine)
20 February 1965	Wawaitin, CA	daily rain	10.2 mm (0.4 in)	2.6 mm (0.10 in)	41 years	20 of 100 (Routine)
20 February 1965	Wawaitin, CA	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	41 years	23 of 100 (Routine)
10 February 1965	Wawaitin, CA	daily high max	3.3 C (37.9 F)	1.1 C (2.0 F)	15 years	10 of 100 (Routine)
17 January 1965	Wawaitin, CA	daily rain	12.7 mm (0.5 in)	2.5 mm (0.10 in)	50 years	20 of 100 (Routine)
17 January 1965	Wawaitin, CA	daily snowfall	12.7 cm (5.0 in)	2.5 cm (1.0 in)	50 years	25 of 100 (Routine)
16 January 1965	Wawaitin, CA	daily low min	-41.7 C (-43.1 F)	2.3 C (4.1 F)	11 years	10 of 100 (Routine)
15 January 1965	Wawaitin, CA	daily low max	-23.9 C (-11.0 F)	2.8 C (5.0 F)	37 years	19 of 100 (Routine)
15 January 1965	Wawaitin, CA	daily low min	-40.6 C (-41.1 F)	0.6 C (1.1 F)	2 years	5 of 100 (Routine)
14 January 1965	Wawaitin, CA	daily low max	-26.7 C (-16.1 F)	0.6 C (1.1 F)	8 years	7 of 100 (Routine)

Climate Trend

36 complete years, 1914 to 1963

One stripe for each of 36 complete years at Wawaitin, 1914 to 1963. Blue stripes are years cooler than the station's own mean of 0.8 C (33.4 F); red stripes are warmer. The coolest year was 1917, at -1.5 C (29.3 F), and the warmest was 1948, at 1.9 C (35.4 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Wawaitin as warming stripes, 1914 to 1963
Year	Annual mean temperature	Difference from the station mean
1914	0.3 C	-0.51 C
1915	1.9 C	+1.14 C
1916	0.1 C	-0.68 C
1917	-1.5 C	-2.27 C
1918	-0.1 C	-0.89 C
1919	1.0 C	+0.26 C
1920	0.9 C	+0.17 C
1921	1.9 C	+1.10 C
1922	1.0 C	+0.20 C
1924	0.3 C	-0.48 C
1925	-0.4 C	-1.18 C
1927	0.7 C	-0.11 C
1928	0.5 C	-0.23 C
1929	-0.3 C	-1.03 C
1930	1.2 C	+0.47 C
1933	0.3 C	-0.50 C
1934	-0.1 C	-0.89 C
1935	0.0 C	-0.79 C
1936	-0.7 C	-1.43 C
1937	1.5 C	+0.71 C
1938	1.2 C	+0.39 C
1939	0.3 C	-0.44 C
1940	0.3 C	-0.47 C
1941	1.1 C	+0.36 C
1942	1.3 C	+0.53 C
1943	0.8 C	-0.01 C
1944	1.9 C	+1.09 C
1945	1.5 C	+0.69 C
1948	1.9 C	+1.14 C
1954	1.4 C	+0.62 C
1957	1.3 C	+0.50 C
1958	1.4 C	+0.64 C
1960	1.1 C	+0.35 C
1961	1.8 C	+1.07 C
1962	1.0 C	+0.27 C
1963	0.9 C	+0.10 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.4) per decade over 1914 to 1963. In Fahrenheit: 0.4 F (0.1 to 0.7) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Wawaitin
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.4) per decade	0.4 F (0.1 to 0.7) per decade	1914 to 1963	36	Rise
Mean daily maximum	0.3 C (0.1 to 0.5) per decade	0.5 F (0.2 to 0.9) per decade	1914 to 1963	36	Rise
Mean daily minimum	0.17 C (-0.03 to 0.36) per decade	0.30 F (-0.05 to 0.65) per decade	1914 to 1963	36	Not clearly different from zero

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

1913 to 1965

Yearly extremes at Wawaitin: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	1921	33.3 C (91.9 F)	52
Coldest night (TNn)	-48.3 C (-54.9 F)	1935	-41.7 C (-43.1 F)	52
Wettest day (Rx1day)	110.7 mm (4.4 in)	1937	35.8 mm (1.4 in)	53
Wettest five days (Rx5day)	198.4 mm (7.8 in)	1937	60.6 mm (2.4 in)	53
Longest dry spell (CDD)	33 days	1958	15 days	53

Hottest day (TXx)

The hottest day of the year at Wawaitin, 1913 to 1965. The record is 38.3 C (100.9 F) in 1921, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at Wawaitin by year
Year	Hottest day (TXx)
1913	28.9 C (84.0 F)
1914	35.0 C (95.0 F)
1915	30.0 C (86.0 F)
1916	36.7 C (98.1 F)
1917	33.9 C (93.0 F)
1918	33.3 C (91.9 F)
1919	35.0 C (95.0 F)
1920	32.2 C (90.0 F)
1921	38.3 C (100.9 F)
1922	32.2 C (90.0 F)
1923	31.7 C (89.1 F)
1924	32.2 C (90.0 F)
1925	35.0 C (95.0 F)
1926	33.9 C (93.0 F)
1927	36.1 C (97.0 F)
1928	32.8 C (91.0 F)
1929	33.9 C (93.0 F)
1930	32.2 C (90.0 F)
1931	36.1 C (97.0 F)
1932	31.1 C (88.0 F)
1933	34.4 C (93.9 F)
1934	32.8 C (91.0 F)
1935	33.3 C (91.9 F)
1936	38.3 C (100.9 F)
1937	34.4 C (93.9 F)
1938	33.3 C (91.9 F)
1939	33.3 C (91.9 F)
1940	35.0 C (95.0 F)
1941	33.9 C (93.0 F)
1942	35.0 C (95.0 F)
1943	35.6 C (96.1 F)
1944	33.9 C (93.0 F)
1945	32.2 C (90.0 F)
1946	31.1 C (88.0 F)
1947	34.4 C (93.9 F)
1948	33.3 C (91.9 F)
1949	36.1 C (97.0 F)
1950	29.4 C (84.9 F)
1951	30.0 C (86.0 F)
1952	33.3 C (91.9 F)
1953	33.9 C (93.0 F)
1954	31.7 C (89.1 F)
1955	34.4 C (93.9 F)
1956	36.1 C (97.0 F)
1957	33.3 C (91.9 F)
1958	32.2 C (90.0 F)
1959	n/a
1960	31.7 C (89.1 F)
1961	31.1 C (88.0 F)
1962	33.9 C (93.0 F)
1963	35.0 C (95.0 F)
1964	33.3 C (91.9 F)
1965	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at Wawaitin, 1913 to 1965. The record is -48.3 C (-54.9 F) in 1935, marked on the chart; the median year is -41.7 C (-43.1 F).

Coldest night (TNn) at Wawaitin by year
Year	Coldest night (TNn)
1913	-40.6 C (-41.1 F)
1914	-47.2 C (-53.0 F)
1915	-38.9 C (-38.0 F)
1916	-39.4 C (-38.9 F)
1917	-42.8 C (-45.0 F)
1918	-41.7 C (-43.1 F)
1919	-43.9 C (-47.0 F)
1920	-43.9 C (-47.0 F)
1921	-40.0 C (-40.0 F)
1922	-42.2 C (-44.0 F)
1923	-41.1 C (-42.0 F)
1924	-42.2 C (-44.0 F)
1925	-42.8 C (-45.0 F)
1926	-41.1 C (-42.0 F)
1927	-39.4 C (-38.9 F)
1928	-42.8 C (-45.0 F)
1929	-42.2 C (-44.0 F)
1930	-42.2 C (-44.0 F)
1931	-43.3 C (-45.9 F)
1932	-42.8 C (-45.0 F)
1933	-43.9 C (-47.0 F)
1934	-46.7 C (-52.1 F)
1935	-48.3 C (-54.9 F)
1936	-38.9 C (-38.0 F)
1937	-38.9 C (-38.0 F)
1938	-41.7 C (-43.1 F)
1939	-43.3 C (-45.9 F)
1940	-35.6 C (-32.1 F)
1941	-41.7 C (-43.1 F)
1942	-42.8 C (-45.0 F)
1943	-44.4 C (-47.9 F)
1944	-38.3 C (-36.9 F)
1945	-40.6 C (-41.1 F)
1946	-41.7 C (-43.1 F)
1947	-38.9 C (-38.0 F)
1948	-38.3 C (-36.9 F)
1949	-38.9 C (-38.0 F)
1950	-44.4 C (-47.9 F)
1951	-43.3 C (-45.9 F)
1952	-38.9 C (-38.0 F)
1953	-40.0 C (-40.0 F)
1954	-39.4 C (-38.9 F)
1955	-41.1 C (-42.0 F)
1956	-40.0 C (-40.0 F)
1957	-43.3 C (-45.9 F)
1958	-38.3 C (-36.9 F)
1959	n/a
1960	-40.6 C (-41.1 F)
1961	-42.8 C (-45.0 F)
1962	-43.9 C (-47.0 F)
1963	-41.1 C (-42.0 F)
1964	-40.6 C (-41.1 F)
1965	-41.7 C (-43.1 F)

Wettest day (Rx1day)

The wettest day of the year at Wawaitin, 1913 to 1965. The record is 110.7 mm (4.4 in) in 1937, marked on the chart; the median year is 35.8 mm (1.4 in).

Wettest day (Rx1day) at Wawaitin by year
Year	Wettest day (Rx1day)
1913	24.1 mm (0.9 in)
1914	36.3 mm (1.4 in)
1915	35.1 mm (1.4 in)
1916	53.1 mm (2.1 in)
1917	33.8 mm (1.3 in)
1918	35.6 mm (1.4 in)
1919	47.5 mm (1.9 in)
1920	30.5 mm (1.2 in)
1921	49.0 mm (1.9 in)
1922	65.0 mm (2.6 in)
1923	57.2 mm (2.3 in)
1924	31.8 mm (1.3 in)
1925	33.8 mm (1.3 in)
1926	62.5 mm (2.5 in)
1927	25.4 mm (1.0 in)
1928	52.1 mm (2.1 in)
1929	26.2 mm (1.0 in)
1930	26.2 mm (1.0 in)
1931	31.2 mm (1.2 in)
1932	34.8 mm (1.4 in)
1933	20.1 mm (0.8 in)
1934	27.7 mm (1.1 in)
1935	27.7 mm (1.1 in)
1936	31.0 mm (1.2 in)
1937	110.7 mm (4.4 in)
1938	35.6 mm (1.4 in)
1939	31.0 mm (1.2 in)
1940	34.3 mm (1.4 in)
1941	45.5 mm (1.8 in)
1942	67.3 mm (2.6 in)
1943	43.4 mm (1.7 in)
1944	37.8 mm (1.5 in)
1945	34.0 mm (1.3 in)
1946	43.2 mm (1.7 in)
1947	70.9 mm (2.8 in)
1948	25.1 mm (1.0 in)
1949	35.8 mm (1.4 in)
1950	35.1 mm (1.4 in)
1951	57.7 mm (2.3 in)
1952	31.0 mm (1.2 in)
1953	56.4 mm (2.2 in)
1954	51.8 mm (2.0 in)
1955	33.8 mm (1.3 in)
1956	33.5 mm (1.3 in)
1957	46.5 mm (1.8 in)
1958	23.6 mm (0.9 in)
1959	48.3 mm (1.9 in)
1960	38.4 mm (1.5 in)
1961	64.0 mm (2.5 in)
1962	36.8 mm (1.4 in)
1963	69.1 mm (2.7 in)
1964	38.1 mm (1.5 in)
1965	39.6 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Wawaitin, 1913 to 1965. The record is 198.4 mm (7.8 in) in 1937, marked on the chart; the median year is 60.6 mm (2.4 in).

Wettest five days (Rx5day) at Wawaitin by year
Year	Wettest five days (Rx5day)
1913	65.3 mm (2.6 in)
1914	53.1 mm (2.1 in)
1915	57.7 mm (2.3 in)
1916	53.1 mm (2.1 in)
1917	75.7 mm (3.0 in)
1918	61.0 mm (2.4 in)
1919	60.9 mm (2.4 in)
1920	43.2 mm (1.7 in)
1921	73.4 mm (2.9 in)
1922	85.1 mm (3.4 in)
1923	91.0 mm (3.6 in)
1924	43.5 mm (1.7 in)
1925	45.0 mm (1.8 in)
1926	81.5 mm (3.2 in)
1927	47.4 mm (1.9 in)
1928	66.9 mm (2.6 in)
1929	50.3 mm (2.0 in)
1930	40.2 mm (1.6 in)
1931	52.6 mm (2.1 in)
1932	55.6 mm (2.2 in)
1933	43.0 mm (1.7 in)
1934	54.7 mm (2.2 in)
1935	41.6 mm (1.6 in)
1936	40.2 mm (1.6 in)
1937	198.4 mm (7.8 in)
1938	70.1 mm (2.8 in)
1939	54.1 mm (2.1 in)
1940	60.8 mm (2.4 in)
1941	63.0 mm (2.5 in)
1942	96.5 mm (3.8 in)
1943	48.2 mm (1.9 in)
1944	56.9 mm (2.2 in)
1945	49.8 mm (2.0 in)
1946	62.5 mm (2.5 in)
1947	90.2 mm (3.6 in)
1948	60.6 mm (2.4 in)
1949	50.5 mm (2.0 in)
1950	42.4 mm (1.7 in)
1951	83.1 mm (3.3 in)
1952	55.9 mm (2.2 in)
1953	117.1 mm (4.6 in)
1954	74.2 mm (2.9 in)
1955	40.1 mm (1.6 in)
1956	47.5 mm (1.9 in)
1957	115.6 mm (4.6 in)
1958	57.1 mm (2.2 in)
1959	63.0 mm (2.5 in)
1960	112.9 mm (4.4 in)
1961	85.0 mm (3.3 in)
1962	68.3 mm (2.7 in)
1963	94.3 mm (3.7 in)
1964	58.3 mm (2.3 in)
1965	72.4 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Wawaitin, 1913 to 1965. The record is 33 days in 1958, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at Wawaitin by year
Year	Longest dry spell (CDD)
1913	8 days
1914	17 days
1915	10 days
1916	18 days
1917	19 days
1918	12 days
1919	14 days
1920	14 days
1921	10 days
1922	20 days
1923	11 days
1924	16 days
1925	14 days
1926	16 days
1927	15 days
1928	15 days
1929	15 days
1930	12 days
1931	11 days
1932	20 days
1933	11 days
1934	11 days
1935	29 days
1936	14 days
1937	13 days
1938	17 days
1939	20 days
1940	13 days
1941	26 days
1942	12 days
1943	12 days
1944	17 days
1945	12 days
1946	15 days
1947	16 days
1948	18 days
1949	25 days
1950	15 days
1951	18 days
1952	18 days
1953	18 days
1954	12 days
1955	23 days
1956	19 days
1957	25 days
1958	33 days
1959	11 days
1960	19 days
1961	26 days
1962	14 days
1963	12 days
1964	20 days
1965	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.

Frost Dates and Growing Season

36 years with a frost

Across 36 years with a frost, the median last spring frost at Wawaitin falls on 16 June and the median first autumn frost on 9 August, which leaves a median of 49 days between them.

Fitted over all years, the growing season changes by +4.0 days per decade at this station.

Frost dates and growing season at Wawaitin
Measure	Median, all years	Earliest period	Recent period (1920 to 1963)	Recent against earliest	Fitted trend
Last spring frost	16 June	n/a	15 June	n/a	-0.5 days per decade
First autumn frost	9 August	n/a	9 August	n/a	+3.5 days per decade
Growing days	49 days	n/a	49 days	n/a	+4.0 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

47 years, 1914 to 1964

A day with at least 37.8 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 107.6 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Wawaitin: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	37.8 mm (1.5 in)
5 years	51.1 mm (2.0 in)
10 years	61.7 mm (2.4 in)
25 years	77.7 mm (3.1 in)
50 years	91.7 mm (3.6 in)	Longer than the 47 years of record
100 years	107.6 mm (4.2 in)	Longer than the 47 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, 47 years of values from 1914 to 1964.

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: 110.7 mm (4.4 in) in 1937; 70.9 mm (2.8 in) in 1947; 69.1 mm (2.7 in) in 1963.

Download the Data

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