Upper Stewiacke Weather Records (CA008206200)

Record envelope, standing records and threshold days for Upper Stewiacke (CA008206200), Nova Scotia, Canada, with 91 years of record.

Key Facts for Upper Stewiacke

Upper Stewiacke (CA008206200) is a weather station in Nova Scotia, Canada at 45.22 latitude and -63.00 longitude, 23 m (75 ft) above sea level.
The station reports from 1915 to 2005, 91 years of record.
1,464 records set at Upper Stewiacke still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Upper Stewiacke set a daily record low maximum temperature of -12.0 C (10.4 F) on 25 December 1983.

About the Station

Location: Nova Scotia, Canada, 45.22 latitude, -63.00 longitude.
Elevation: 23 m (75 ft).
Period of record: 1915 to 2005, 91 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 Upper Stewiacke. 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 Upper Stewiacke, 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)	-41.1 C (-42.0 F)	n/a	n/a
Feb	16.7 C (62.1 F)	-38.9 C (-38.0 F)	n/a	n/a
Mar	20.6 C (69.1 F)	-30.0 C (-22.0 F)	n/a	n/a
Apr	27.2 C (81.0 F)	-16.7 C (1.9 F)	n/a	n/a
May	32.2 C (90.0 F)	-8.3 C (17.1 F)	n/a	n/a
Jun	34.4 C (93.9 F)	-3.9 C (25.0 F)	n/a	n/a
Jul	35.0 C (95.0 F)	-1.7 C (28.9 F)	n/a	n/a
Aug	36.1 C (97.0 F)	-1.7 C (28.9 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-7.2 C (19.0 F)	n/a	n/a
Oct	29.4 C (84.9 F)	-10.0 C (14.0 F)	n/a	n/a
Nov	21.7 C (71.1 F)	-24.4 C (-11.9 F)	n/a	n/a
Dec	17.8 C (64.0 F)	-31.7 C (-25.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Upper Stewiacke still stand. 1979 holds the most, with 46.

Standing records at Upper Stewiacke by the year they were set
Year set	Standing records
1916	29
1917	21
1918	34
1919	19
1920	33
1921	41
1922	22
1923	37
1924	17
1925	28
1926	21
1927	33
1928	12
1929	23
1930	27
1931	13
1932	12
1933	21
1934	20
1935	18
1936	27
1937	25
1938	13
1939	19
1940	19
1941	19
1942	24
1943	24
1944	22
1945	26
1946	17
1947	32
1948	24
1949	24
1950	13
1951	22
1952	8
1953	21
1954	18
1955	14
1956	27
1957	26
1958	16
1959	18
1960	17
1961	18
1962	20
1963	21
1964	15
1965	21
1966	18
1967	28
1968	23
1969	18
1970	20
1971	17
1972	18
1973	21
1974	24
1975	18
1976	20
1977	17
1978	13
1979	46
1980	18
1981	23
1982	16
1983	15

All-Time Record Progression

4 new records

4 all-time records were set at Upper Stewiacke between 4 January 1961 and 27 July 1979. Each dot is a new record.

When Upper Stewiacke set new all-time records
Date	Kind	Detail
1961-01-04	Record daily snowfall	Record daily snowfall 55.9 cm (22.0 in)
1967-10-10	Record daily precipitation	Record daily precipitation 90.4 mm (3.6 in)
1971-08-15	Record daily precipitation	Record daily precipitation 132.6 mm (5.2 in)
1979-07-27	Record high minimum temperature	Record high minimum temperature 24.0 C (75.2 F)

Wettest Day of Each Month

Aug: 132.6 mm (5.2 in)

The wettest day on record for each calendar month at Upper Stewiacke. The most was 132.6 mm (5.2 in) on 15 August 1971.

Record daily precipitation for each month at Upper Stewiacke
Month	Record daily precipitation (mm)	Date
Jan	77.7 mm (3.1 in)	14 January 1978
Feb	61.0 mm (2.4 in)	7 February 1920
Mar	44.5 mm (1.8 in)	31 March 1966
Apr	64.4 mm (2.5 in)	28 April 1982
May	54.6 mm (2.1 in)	28 May 1952
Jun	54.9 mm (2.2 in)	19 June 1959
Jul	85.9 mm (3.4 in)	11 July 1970
Aug	132.6 mm (5.2 in)	15 August 1971
Sep	82.3 mm (3.2 in)	20 September 1936
Oct	90.4 mm (3.6 in)	10 October 1967
Nov	69.9 mm (2.8 in)	7 November 1934
Dec	81.3 mm (3.2 in)	8 December 1928

Period of Record Coverage

1915 to 1983

69 years of record at Upper Stewiacke, 1915 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1915, 1916, 1950, 1964.

Days with data per year at Upper Stewiacke
Year	Days with data	Share of year	Complete
1915	26	7%	No
1916	290	79%	No
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	365	100%	Yes
1924	366	100%	Yes
1925	365	100%	Yes
1926	364	100%	Yes
1927	365	100%	Yes
1928	366	100%	Yes
1929	356	98%	Yes
1930	365	100%	Yes
1931	364	100%	Yes
1932	365	100%	Yes
1933	365	100%	Yes
1934	363	99%	Yes
1935	365	100%	Yes
1936	366	100%	Yes
1937	365	100%	Yes
1938	364	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	364	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	366	100%	Yes
1945	365	100%	Yes
1946	361	99%	Yes
1947	364	100%	Yes
1948	365	100%	Yes
1949	364	100%	Yes
1950	322	88%	No
1951	361	99%	Yes
1952	365	100%	Yes
1953	364	100%	Yes
1954	363	99%	Yes
1955	363	99%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	365	100%	Yes
1961	364	100%	Yes
1962	364	100%	Yes
1963	365	100%	Yes
1964	325	89%	No
1965	365	100%	Yes
1966	364	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	358	98%	Yes
1976	335	92%	Yes
1977	364	100%	Yes
1978	365	100%	Yes
1979	363	99%	Yes
1980	334	91%	Yes
1981	364	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes

Latest Records

Latest records at Upper Stewiacke
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 December 1983	Upper Stewiacke, CA	daily low max	-12.0 C (10.4 F)	0.3 C (0.5 F)	8 years	8 of 100 (Routine)
15 December 1983	Upper Stewiacke, CA	daily high min	8.0 C (46.4 F)	1.3 C (2.3 F)	14 years	11 of 100 (Routine)
14 December 1983	Upper Stewiacke, CA	daily high max	14.5 C (58.1 F)	1.2 C (2.2 F)	60 years	25 of 100 (Routine)
14 December 1983	Upper Stewiacke, CA	daily high min	3.5 C (38.3 F)	0.2 C (0.4 F)	14 years	10 of 100 (Routine)
16 November 1983	Upper Stewiacke, CA	daily rain	44.6 mm (1.8 in)	11.1 mm (0.4 in)	24 years	23 of 100 (Routine)
14 October 1983	Upper Stewiacke, CA	daily high min	17.0 C (62.6 F)	4.2 C (7.6 F)	21 years	19 of 100 (Routine)
13 October 1983	Upper Stewiacke, CA	daily rain	23.2 mm (0.9 in)	8.2 mm (0.32 in)	36 years	20 of 100 (Routine)
6 September 1983	Upper Stewiacke, CA	daily high max	29.5 C (85.1 F)	0.6 C (1.1 F)	36 years	17 of 100 (Routine)
5 September 1983	Upper Stewiacke, CA	daily high max	30.0 C (86.0 F)	2.2 C (4.0 F)	57 years	28 of 100 (Routine)
31 August 1983	Upper Stewiacke, CA	daily rain	40.8 mm (1.6 in)	23.0 mm (0.9 in)	64 years	42 of 100 (Notable)
12 August 1983	Upper Stewiacke, CA	daily low max	14.5 C (58.1 F)	3.0 C (5.4 F)	4 years	15 of 100 (Routine)
6 August 1983	Upper Stewiacke, CA	daily rain	63.2 mm (2.5 in)	40.3 mm (1.6 in)	32 years	45 of 100 (Notable)
22 July 1983	Upper Stewiacke, CA	daily rain	63.8 mm (2.5 in)	33.3 mm (1.3 in)	48 years	51 of 100 (Notable)
13 July 1983	Upper Stewiacke, CA	daily rain	52.8 mm (2.1 in)	29.4 mm (1.2 in)	5 years	34 of 100 (Routine)
6 July 1983	Upper Stewiacke, CA	daily high min	19.0 C (66.2 F)	0.1 C (0.2 F)	9 years	8 of 100 (Routine)
23 June 1983	Upper Stewiacke, CA	daily high max	32.0 C (89.6 F)	2.0 C (3.6 F)	17 years	15 of 100 (Routine)
26 April 1983	Upper Stewiacke, CA	daily high min	11.0 C (51.8 F)	1.6 C (2.9 F)	14 years	14 of 100 (Routine)
25 April 1983	Upper Stewiacke, CA	daily rain	38.6 mm (1.5 in)	14.0 mm (0.6 in)	14 years	27 of 100 (Routine)
26 March 1983	Upper Stewiacke, CA	daily low max	-3.5 C (25.7 F)	0.2 C (0.4 F)	60 years	24 of 100 (Routine)
3 March 1983	Upper Stewiacke, CA	daily rain	26.4 mm (1.0 in)	5.3 mm (0.21 in)	40 years	24 of 100 (Routine)

Climate Trend

61 complete years, 1917 to 1983

One stripe for each of 61 complete years at Upper Stewiacke, 1917 to 1983. Blue stripes are years cooler than the station's own mean of 5.9 C (42.6 F); red stripes are warmer. The coolest year was 1917, at 4.3 C (39.8 F), and the warmest was 1927, at 7.2 C (45.0 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Upper Stewiacke as warming stripes, 1917 to 1983
Year	Annual mean temperature	Difference from the station mean
1917	4.3 C	-1.54 C
1918	4.4 C	-1.53 C
1919	5.4 C	-0.52 C
1920	5.1 C	-0.83 C
1921	5.3 C	-0.61 C
1922	5.1 C	-0.80 C
1923	4.5 C	-1.41 C
1924	5.7 C	-0.21 C
1925	6.0 C	+0.14 C
1926	5.1 C	-0.76 C
1927	7.2 C	+1.35 C
1928	6.4 C	+0.55 C
1929	5.7 C	-0.21 C
1930	6.3 C	+0.37 C
1931	6.7 C	+0.86 C
1932	6.0 C	+0.13 C
1933	6.2 C	+0.29 C
1934	5.7 C	-0.23 C
1935	5.6 C	-0.32 C
1936	6.2 C	+0.31 C
1937	6.8 C	+0.96 C
1938	6.4 C	+0.50 C
1939	5.4 C	-0.45 C
1940	5.0 C	-0.93 C
1942	5.5 C	-0.39 C
1943	4.5 C	-1.35 C
1944	5.2 C	-0.65 C
1945	5.8 C	-0.08 C
1946	6.2 C	+0.29 C
1947	6.5 C	+0.59 C
1948	5.4 C	-0.53 C
1949	6.8 C	+0.90 C
1951	7.2 C	+1.28 C
1952	6.8 C	+0.92 C
1953	7.2 C	+1.29 C
1954	6.7 C	+0.78 C
1955	5.5 C	-0.36 C
1956	5.2 C	-0.69 C
1957	5.4 C	-0.45 C
1959	6.0 C	+0.16 C
1960	6.6 C	+0.70 C
1961	5.8 C	-0.09 C
1962	5.3 C	-0.56 C
1963	5.5 C	-0.40 C
1965	5.1 C	-0.77 C
1966	6.5 C	+0.64 C
1967	5.8 C	-0.07 C
1968	5.7 C	-0.20 C
1969	7.0 C	+1.14 C
1970	5.7 C	-0.16 C
1971	6.2 C	+0.29 C
1972	5.0 C	-0.84 C
1973	6.3 C	+0.45 C
1974	5.4 C	-0.52 C
1975	5.7 C	-0.21 C
1977	6.2 C	+0.33 C
1978	5.3 C	-0.63 C
1979	7.1 C	+1.20 C
1981	7.0 C	+1.16 C
1982	6.1 C	+0.18 C
1983	7.2 C	+1.28 C

The annual mean temperature here has risen by 0.12 C (0.03 to 0.22) per decade over 1917 to 1983. In Fahrenheit: 0.22 F (0.05 to 0.39) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Upper Stewiacke
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.12 C (0.03 to 0.22) per decade	0.22 F (0.05 to 0.39) per decade	1917 to 1983	61	Rise
Mean daily maximum	-0.06 C (-0.16 to 0.04) per decade	-0.1 F (-0.3 to 0.1) per decade	1917 to 1983	61	Not clearly different from zero
Mean daily minimum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1917 to 1983	61	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

1915 to 1983

Yearly extremes at Upper Stewiacke: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.1 C (97.0 F)	1935	31.7 C (89.1 F)	69
Coldest night (TNn)	-41.1 C (-42.0 F)	1920	-28.9 C (-20.0 F)	69
Wettest day (Rx1day)	132.6 mm (5.2 in)	1971	50.3 mm (2.0 in)	69
Wettest five days (Rx5day)	199.6 mm (7.9 in)	1971	78.4 mm (3.1 in)	69
Longest dry spell (CDD)	24 days	1944	14 days	69

Hottest day (TXx)

The hottest day of the year at Upper Stewiacke, 1915 to 1983. The record is 36.1 C (97.0 F) in 1935, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Upper Stewiacke by year
Year	Hottest day (TXx)
1915	13.3 C (55.9 F)
1916	31.1 C (88.0 F)
1917	32.2 C (90.0 F)
1918	31.7 C (89.1 F)
1919	32.2 C (90.0 F)
1920	31.7 C (89.1 F)
1921	32.2 C (90.0 F)
1922	31.1 C (88.0 F)
1923	28.3 C (82.9 F)
1924	31.1 C (88.0 F)
1925	32.2 C (90.0 F)
1926	32.2 C (90.0 F)
1927	32.2 C (90.0 F)
1928	35.0 C (95.0 F)
1929	32.2 C (90.0 F)
1930	33.3 C (91.9 F)
1931	31.1 C (88.0 F)
1932	31.1 C (88.0 F)
1933	32.8 C (91.0 F)
1934	30.0 C (86.0 F)
1935	36.1 C (97.0 F)
1936	28.9 C (84.0 F)
1937	32.2 C (90.0 F)
1938	32.2 C (90.0 F)
1939	32.2 C (90.0 F)
1940	32.2 C (90.0 F)
1941	32.8 C (91.0 F)
1942	33.3 C (91.9 F)
1943	33.3 C (91.9 F)
1944	36.1 C (97.0 F)
1945	31.7 C (89.1 F)
1946	32.2 C (90.0 F)
1947	34.4 C (93.9 F)
1948	31.7 C (89.1 F)
1949	35.0 C (95.0 F)
1950	30.0 C (86.0 F)
1951	31.1 C (88.0 F)
1952	33.3 C (91.9 F)
1953	30.0 C (86.0 F)
1954	30.0 C (86.0 F)
1955	31.7 C (89.1 F)
1956	28.9 C (84.0 F)
1957	30.6 C (87.1 F)
1958	28.9 C (84.0 F)
1959	31.7 C (89.1 F)
1960	33.3 C (91.9 F)
1961	31.1 C (88.0 F)
1962	31.1 C (88.0 F)
1963	33.3 C (91.9 F)
1964	29.4 C (84.9 F)
1965	30.6 C (87.1 F)
1966	30.0 C (86.0 F)
1967	30.0 C (86.0 F)
1968	31.7 C (89.1 F)
1969	31.7 C (89.1 F)
1970	32.2 C (90.0 F)
1971	31.1 C (88.0 F)
1972	30.6 C (87.1 F)
1973	31.7 C (89.1 F)
1974	31.1 C (88.0 F)
1975	36.1 C (97.0 F)
1976	32.8 C (91.0 F)
1977	32.2 C (90.0 F)
1978	32.2 C (90.0 F)
1979	31.7 C (89.1 F)
1980	32.0 C (89.6 F)
1981	29.5 C (85.1 F)
1982	32.5 C (90.5 F)
1983	32.0 C (89.6 F)

Coldest night (TNn)

The coldest night of the year at Upper Stewiacke, 1915 to 1983. The record is -41.1 C (-42.0 F) in 1920, marked on the chart; the median year is -28.9 C (-20.0 F).

Coldest night (TNn) at Upper Stewiacke by year
Year	Coldest night (TNn)
1915	-3.9 C (25.0 F)
1916	-24.4 C (-11.9 F)
1917	-34.4 C (-29.9 F)
1918	-32.8 C (-27.0 F)
1919	-26.1 C (-15.0 F)
1920	-41.1 C (-42.0 F)
1921	-33.3 C (-27.9 F)
1922	-38.9 C (-38.0 F)
1923	-34.4 C (-29.9 F)
1924	-28.3 C (-18.9 F)
1925	-36.1 C (-33.0 F)
1926	-29.4 C (-20.9 F)
1927	-29.4 C (-20.9 F)
1928	-31.7 C (-25.1 F)
1929	-29.4 C (-20.9 F)
1930	-28.9 C (-20.0 F)
1931	-28.9 C (-20.0 F)
1932	-27.8 C (-18.0 F)
1933	-30.0 C (-22.0 F)
1934	-36.7 C (-34.1 F)
1935	-29.4 C (-20.9 F)
1936	-25.6 C (-14.1 F)
1937	-28.3 C (-18.9 F)
1938	-30.6 C (-23.1 F)
1939	-28.3 C (-18.9 F)
1940	-27.8 C (-18.0 F)
1941	-27.8 C (-18.0 F)
1942	-31.1 C (-24.0 F)
1943	-28.9 C (-20.0 F)
1944	-27.2 C (-17.0 F)
1945	-31.7 C (-25.1 F)
1946	-30.0 C (-22.0 F)
1947	-24.4 C (-11.9 F)
1948	-31.1 C (-24.0 F)
1949	-25.6 C (-14.1 F)
1950	-30.6 C (-23.1 F)
1951	-30.6 C (-23.1 F)
1952	-26.7 C (-16.1 F)
1953	-20.0 C (-4.0 F)
1954	-27.2 C (-17.0 F)
1955	-28.9 C (-20.0 F)
1956	-27.8 C (-18.0 F)
1957	-33.9 C (-29.0 F)
1958	-24.4 C (-11.9 F)
1959	-24.4 C (-11.9 F)
1960	-25.6 C (-14.1 F)
1961	-33.9 C (-29.0 F)
1962	-30.6 C (-23.1 F)
1963	-30.6 C (-23.1 F)
1964	-30.6 C (-23.1 F)
1965	-30.6 C (-23.1 F)
1966	-29.4 C (-20.9 F)
1967	-28.9 C (-20.0 F)
1968	-32.2 C (-26.0 F)
1969	-20.6 C (-5.1 F)
1970	-30.6 C (-23.1 F)
1971	-33.3 C (-27.9 F)
1972	-28.3 C (-18.9 F)
1973	-28.3 C (-18.9 F)
1974	-28.9 C (-20.0 F)
1975	-33.3 C (-27.9 F)
1976	-25.6 C (-14.1 F)
1977	-23.9 C (-11.0 F)
1978	-26.7 C (-16.1 F)
1979	-25.6 C (-14.1 F)
1980	-31.5 C (-24.7 F)
1981	-36.5 C (-33.7 F)
1982	-27.5 C (-17.5 F)
1983	-25.5 C (-13.9 F)

Wettest day (Rx1day)

The wettest day of the year at Upper Stewiacke, 1915 to 1983. The record is 132.6 mm (5.2 in) in 1971, marked on the chart; the median year is 50.3 mm (2.0 in).

Wettest day (Rx1day) at Upper Stewiacke by year
Year	Wettest day (Rx1day)
1915	34.3 mm (1.4 in)
1916	39.4 mm (1.6 in)
1917	59.4 mm (2.3 in)
1918	60.7 mm (2.4 in)
1919	61.7 mm (2.4 in)
1920	61.0 mm (2.4 in)
1921	40.6 mm (1.6 in)
1922	54.6 mm (2.1 in)
1923	66.0 mm (2.6 in)
1924	66.3 mm (2.6 in)
1925	38.1 mm (1.5 in)
1926	49.8 mm (2.0 in)
1927	49.3 mm (1.9 in)
1928	81.3 mm (3.2 in)
1929	81.3 mm (3.2 in)
1930	55.1 mm (2.2 in)
1931	41.1 mm (1.6 in)
1932	26.7 mm (1.1 in)
1933	61.0 mm (2.4 in)
1934	69.9 mm (2.8 in)
1935	77.0 mm (3.0 in)
1936	82.3 mm (3.2 in)
1937	47.8 mm (1.9 in)
1938	49.3 mm (1.9 in)
1939	57.2 mm (2.3 in)
1940	41.1 mm (1.6 in)
1941	26.2 mm (1.0 in)
1942	57.9 mm (2.3 in)
1943	27.9 mm (1.1 in)
1944	31.0 mm (1.2 in)
1945	45.0 mm (1.8 in)
1946	34.3 mm (1.4 in)
1947	43.7 mm (1.7 in)
1948	47.0 mm (1.9 in)
1949	76.2 mm (3.0 in)
1950	54.9 mm (2.2 in)
1951	38.1 mm (1.5 in)
1952	54.6 mm (2.1 in)
1953	62.2 mm (2.4 in)
1954	41.4 mm (1.6 in)
1955	49.0 mm (1.9 in)
1956	47.8 mm (1.9 in)
1957	40.6 mm (1.6 in)
1958	50.3 mm (2.0 in)
1959	54.9 mm (2.2 in)
1960	36.8 mm (1.4 in)
1961	55.9 mm (2.2 in)
1962	59.4 mm (2.3 in)
1963	37.1 mm (1.5 in)
1964	56.9 mm (2.2 in)
1965	47.8 mm (1.9 in)
1966	44.5 mm (1.8 in)
1967	90.4 mm (3.6 in)
1968	42.4 mm (1.7 in)
1969	52.8 mm (2.1 in)
1970	85.9 mm (3.4 in)
1971	132.6 mm (5.2 in)
1972	57.7 mm (2.3 in)
1973	47.5 mm (1.9 in)
1974	41.4 mm (1.6 in)
1975	66.0 mm (2.6 in)
1976	47.2 mm (1.9 in)
1977	58.4 mm (2.3 in)
1978	77.7 mm (3.1 in)
1979	44.0 mm (1.7 in)
1980	40.0 mm (1.6 in)
1981	49.4 mm (1.9 in)
1982	64.4 mm (2.5 in)
1983	63.8 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Upper Stewiacke, 1915 to 1983. The record is 199.6 mm (7.9 in) in 1971, marked on the chart; the median year is 78.4 mm (3.1 in).

Wettest five days (Rx5day) at Upper Stewiacke by year
Year	Wettest five days (Rx5day)
1915	86.4 mm (3.4 in)
1916	76.2 mm (3.0 in)
1917	105.2 mm (4.1 in)
1918	75.9 mm (3.0 in)
1919	63.7 mm (2.5 in)
1920	68.6 mm (2.7 in)
1921	66.1 mm (2.6 in)
1922	82.3 mm (3.2 in)
1923	81.0 mm (3.2 in)
1924	91.2 mm (3.6 in)
1925	60.5 mm (2.4 in)
1926	60.0 mm (2.4 in)
1927	69.6 mm (2.7 in)
1928	92.4 mm (3.6 in)
1929	129.1 mm (5.1 in)
1930	85.8 mm (3.4 in)
1931	62.3 mm (2.5 in)
1932	47.8 mm (1.9 in)
1933	78.5 mm (3.1 in)
1934	102.6 mm (4.0 in)
1935	126.0 mm (5.0 in)
1936	98.1 mm (3.9 in)
1937	49.8 mm (2.0 in)
1938	63.3 mm (2.5 in)
1939	57.2 mm (2.3 in)
1940	47.5 mm (1.9 in)
1941	64.0 mm (2.5 in)
1942	70.7 mm (2.8 in)
1943	37.9 mm (1.5 in)
1944	38.6 mm (1.5 in)
1945	78.8 mm (3.1 in)
1946	45.2 mm (1.8 in)
1947	63.0 mm (2.5 in)
1948	53.6 mm (2.1 in)
1949	85.6 mm (3.4 in)
1950	54.9 mm (2.2 in)
1951	62.2 mm (2.4 in)
1952	68.3 mm (2.7 in)
1953	86.6 mm (3.4 in)
1954	64.5 mm (2.5 in)
1955	57.4 mm (2.3 in)
1956	131.6 mm (5.2 in)
1957	93.7 mm (3.7 in)
1958	75.5 mm (3.0 in)
1959	80.8 mm (3.2 in)
1960	57.4 mm (2.3 in)
1961	67.3 mm (2.6 in)
1962	92.7 mm (3.6 in)
1963	57.2 mm (2.3 in)
1964	75.1 mm (3.0 in)
1965	73.1 mm (2.9 in)
1966	53.1 mm (2.1 in)
1967	147.8 mm (5.8 in)
1968	83.6 mm (3.3 in)
1969	155.2 mm (6.1 in)
1970	87.9 mm (3.5 in)
1971	199.6 mm (7.9 in)
1972	103.7 mm (4.1 in)
1973	103.4 mm (4.1 in)
1974	81.0 mm (3.2 in)
1975	94.8 mm (3.7 in)
1976	78.9 mm (3.1 in)
1977	90.4 mm (3.6 in)
1978	120.6 mm (4.7 in)
1979	96.4 mm (3.8 in)
1980	68.3 mm (2.7 in)
1981	78.4 mm (3.1 in)
1982	99.4 mm (3.9 in)
1983	85.6 mm (3.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Upper Stewiacke, 1915 to 1983. The record is 24 days in 1944, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Upper Stewiacke by year
Year	Longest dry spell (CDD)
1915	7 days
1916	9 days
1917	11 days
1918	14 days
1919	10 days
1920	23 days
1921	17 days
1922	11 days
1923	14 days
1924	14 days
1925	21 days
1926	23 days
1927	10 days
1928	14 days
1929	12 days
1930	19 days
1931	10 days
1932	14 days
1933	10 days
1934	17 days
1935	9 days
1936	7 days
1937	16 days
1938	17 days
1939	14 days
1940	12 days
1941	9 days
1942	17 days
1943	10 days
1944	24 days
1945	13 days
1946	13 days
1947	23 days
1948	10 days
1949	12 days
1950	17 days
1951	14 days
1952	16 days
1953	15 days
1954	22 days
1955	11 days
1956	15 days
1957	13 days
1958	11 days
1959	13 days
1960	19 days
1961	18 days
1962	19 days
1963	15 days
1964	19 days
1965	15 days
1966	8 days
1967	13 days
1968	16 days
1969	13 days
1970	19 days
1971	15 days
1972	11 days
1973	13 days
1974	19 days
1975	17 days
1976	11 days
1977	9 days
1978	17 days
1979	19 days
1980	22 days
1981	12 days
1982	19 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

61 years with a frost

Across 61 years with a frost, the median last spring frost at Upper Stewiacke falls on 11 June and the median first autumn frost on 10 September, which leaves a median of 92 days between them.

In 1949 to 1983 the median growing season was 90 days. That is 3 days fewer than in 1917 to 1947.

Fitted over all years, the growing season changes by +1.7 days per decade at this station.

Frost dates and growing season at Upper Stewiacke
Measure	Median, all years	Earliest period (1917 to 1947)	Recent period (1949 to 1983)	Recent against earliest	Fitted trend
Last spring frost	11 June	11 June	12 June	1 day later	-0.2 days per decade
First autumn frost	10 September	9 September	11 September	2 days later	+1.6 days per decade
Growing days	92 days	93 days	90 days	3 days fewer	+1.7 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

48 years, 1917 to 1983

A day with at least 54.3 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 117.7 mm (4.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Upper Stewiacke: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	54.3 mm (2.1 in)
5 years	70.0 mm (2.8 in)
10 years	80.8 mm (3.2 in)
25 years	95.2 mm (3.7 in)
50 years	106.3 mm (4.2 in)	Longer than the 48 years of record
100 years	117.7 mm (4.6 in)	Longer than the 48 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, 48 years of values from 1917 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: 132.6 mm (5.2 in) in 1971; 90.4 mm (3.6 in) in 1967; 85.9 mm (3.4 in) in 1970.

Station Changes

3 suspected

3 changes were suspected in the annual mean temperature of Upper Stewiacke, at 1924, 1939 and 1946. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1924 ran 0.6 C (1.1 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1939 ran 0.7 C (1.3 F) lower than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1946 ran 0.3 C (0.6 F) higher than in the years before (possible change).

Suspected changes in the annual mean temperature at Upper Stewiacke, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1924	+0.6	+1.1	likely	5
1939	-0.7	-1.3	possible	5
1946	+0.3	+0.6	possible	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for Upper Stewiacke standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Upper Stewiacke 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).