Fredericton Unb Weather Records (CA008101700)

Record envelope, standing records and threshold days for Fredericton Unb (CA008101700), New Brunswick, Canada, with 82 years of record.

Key Facts for Fredericton Unb

Fredericton Unb (CA008101700) is a weather station in New Brunswick, Canada at 45.95 latitude and -66.60 longitude, 50 m (164 ft) above sea level.
The station reports from 1871 to 1952, 82 years of record.
1,464 records set at Fredericton Unb still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Fredericton Unb set a daily record high maximum temperature of 27.8 C (82.0 F) on 29 September 1952.

About the Station

Location: New Brunswick, Canada, 45.95 latitude, -66.60 longitude.
Elevation: 50 m (164 ft).
Period of record: 1871 to 1952, 82 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 Fredericton Unb. 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 Fredericton Unb, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.8 C (55.0 F)	-37.2 C (-35.0 F)	n/a	n/a
Feb	11.7 C (53.1 F)	-37.2 C (-35.0 F)	n/a	n/a
Mar	21.1 C (70.0 F)	-32.8 C (-27.0 F)	n/a	n/a
Apr	28.3 C (82.9 F)	-20.6 C (-5.1 F)	n/a	n/a
May	33.9 C (93.0 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	36.1 C (97.0 F)	-2.8 C (27.0 F)	n/a	n/a
Jul	35.6 C (96.1 F)	3.3 C (37.9 F)	n/a	n/a
Aug	38.3 C (100.9 F)	1.7 C (35.1 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-10.6 C (12.9 F)	n/a	n/a
Nov	21.1 C (70.0 F)	-26.7 C (-16.1 F)	n/a	n/a
Dec	15.6 C (60.1 F)	-35.6 C (-32.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Fredericton Unb still stand. 1921 holds the most, with 35.

Standing records at Fredericton Unb by the year they were set
Year set	Standing records
1871	1
1872	10
1874	21
1875	21
1876	18
1877	15
1878	19
1879	27
1880	26
1881	20
1882	15
1883	20
1884	30
1885	20
1886	19
1887	18
1888	25
1889	20
1890	19
1891	14
1892	15
1893	9
1894	16
1895	16
1896	9
1897	15
1898	14
1899	14
1900	8
1901	17
1902	10
1903	8
1904	16
1905	15
1906	15
1907	13
1908	18
1909	23
1910	28
1911	26
1912	16
1913	31
1914	32
1915	14
1916	24
1917	14
1918	25
1919	24
1920	20
1921	35
1922	14
1923	22
1924	11
1925	17
1926	9
1927	20
1928	8
1929	15
1930	16
1931	14
1932	11
1933	12
1934	24
1935	13
1936	26
1937	12
1938	29
1939	15
1940	13
1941	16
1942	20
1943	21
1944	20
1945	25
1946	25
1947	24
1948	16
1949	24
1950	27
1951	17
1952	10

All-Time Record Progression

5 new records

5 all-time records were set at Fredericton Unb between 4 January 1905 and 17 August 1935. Each dot is a new record.

When Fredericton Unb set new all-time records
Date	Kind	Detail
1905-01-04	Record daily snowfall	Record daily snowfall 52.1 cm (20.5 in)
1912-06-01	Record daily precipitation	Record daily precipitation 119.4 mm (4.7 in)
1912-07-07	Record high minimum temperature	Record high minimum temperature 23.3 C (73.9 F)
1933-12-29	Record low maximum temperature	Record low maximum temperature -24.4 C (-11.9 F)
1935-08-17	Record high maximum temperature	Record high maximum temperature 38.3 C (100.9 F)

Wettest Day of Each Month

Jun: 119.4 mm (4.7 in)

The wettest day on record for each calendar month at Fredericton Unb. The most was 119.4 mm (4.7 in) on 1 June 1912.

Record daily precipitation for each month at Fredericton Unb
Month	Record daily precipitation (mm)	Date
Jan	71.1 mm (2.8 in)	6 January 1909
Feb	76.2 mm (3.0 in)	12 February 1879
Mar	65.3 mm (2.6 in)	2 March 1882
Apr	57.4 mm (2.3 in)	21 April 1950
May	57.9 mm (2.3 in)	4 May 1900
Jun	119.4 mm (4.7 in)	1 June 1912
Jul	73.9 mm (2.9 in)	9 July 1915
Aug	93.5 mm (3.7 in)	25 August 1933
Sep	111.8 mm (4.4 in)	17 September 1933
Oct	90.2 mm (3.6 in)	10 October 1900
Nov	96.8 mm (3.8 in)	7 November 1876
Dec	47.0 mm (1.9 in)	9 December 1950

Period of Record Coverage

1871 to 1952

81 years of record at Fredericton Unb, 1871 to 1952. 7 years have data for under 90 percent of days and are left out of rankings: 1871, 1874, 1894, 1895, 1903, 1906, 1952.

Days with data per year at Fredericton Unb
Year	Days with data	Share of year	Complete
1871	31	8%	No
1872	366	100%	Yes
1874	327	90%	No
1875	365	100%	Yes
1876	366	100%	Yes
1877	365	100%	Yes
1878	365	100%	Yes
1879	365	100%	Yes
1880	366	100%	Yes
1881	365	100%	Yes
1882	365	100%	Yes
1883	365	100%	Yes
1884	366	100%	Yes
1885	365	100%	Yes
1886	365	100%	Yes
1887	365	100%	Yes
1888	366	100%	Yes
1889	365	100%	Yes
1890	365	100%	Yes
1891	365	100%	Yes
1892	366	100%	Yes
1893	365	100%	Yes
1894	272	75%	No
1895	269	74%	No
1896	366	100%	Yes
1897	364	100%	Yes
1898	365	100%	Yes
1899	365	100%	Yes
1900	365	100%	Yes
1901	330	90%	Yes
1902	365	100%	Yes
1903	289	79%	No
1904	366	100%	Yes
1905	365	100%	Yes
1906	273	75%	No
1907	365	100%	Yes
1908	366	100%	Yes
1909	365	100%	Yes
1910	365	100%	Yes
1911	365	100%	Yes
1912	366	100%	Yes
1913	365	100%	Yes
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	365	100%	Yes
1924	366	100%	Yes
1925	365	100%	Yes
1926	365	100%	Yes
1927	365	100%	Yes
1928	366	100%	Yes
1929	365	100%	Yes
1930	365	100%	Yes
1931	365	100%	Yes
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	365	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	366	100%	Yes
1945	365	100%	Yes
1946	365	100%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	274	75%	No

Latest Records

Latest records at Fredericton Unb
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 September 1952	Fredericton Unb, CA	daily high max	27.8 C (82.0 F)	1.7 C (3.1 F)	33 years	20 of 100 (Routine)
19 September 1952	Fredericton Unb, CA	daily rain	42.7 mm (1.7 in)	8.7 mm (0.34 in)	34 years	24 of 100 (Routine)
8 September 1952	Fredericton Unb, CA	daily low min (Tie)	0.0 C (32.0 F)	tie	57 years	6 of 100 (Routine)
28 August 1952	Fredericton Unb, CA	daily high max	34.4 C (93.9 F)	2.2 C (4.0 F)	32 years	22 of 100 (Routine)
23 July 1952	Fredericton Unb, CA	daily high max	34.4 C (93.9 F)	1.1 C (2.0 F)	15 years	14 of 100 (Routine)
19 July 1952	Fredericton Unb, CA	daily rain	53.3 mm (2.1 in)	23.6 mm (0.9 in)	40 years	44 of 100 (Notable)
18 July 1952	Fredericton Unb, CA	daily high max	33.9 C (93.0 F)	1.7 C (3.1 F)	29 years	20 of 100 (Routine)
17 July 1952	Fredericton Unb, CA	daily high max	32.8 C (91.0 F)	1.1 C (2.0 F)	30 years	19 of 100 (Routine)
16 July 1952	Fredericton Unb, CA	daily high max	33.3 C (91.9 F)	1.6 C (2.9 F)	4 years	13 of 100 (Routine)
15 July 1952	Fredericton Unb, CA	monthly high max (Tie)	35.6 C (96.1 F)	tie	74 years	10 of 100 (Routine)
15 July 1952	Fredericton Unb, CA	daily high min (Tie)	17.8 C (64.0 F)	tie	51 years	5 of 100 (Routine)
7 June 1952	Fredericton Unb, CA	daily rain	64.3 mm (2.5 in)	33.3 mm (1.3 in)	34 years	50 of 100 (Notable)
5 June 1952	Fredericton Unb, CA	daily high min (Tie)	14.4 C (57.9 F)	tie	27 years	4 of 100 (Routine)
2 June 1952	Fredericton Unb, CA	daily high min	15.0 C (59.0 F)	1.7 C (3.1 F)	30 years	21 of 100 (Routine)
2 June 1952	Fredericton Unb, CA	daily rain	36.1 mm (1.4 in)	0.8 mm (0.03 in)	5 years	9 of 100 (Routine)
14 April 1952	Fredericton Unb, CA	daily rain	26.7 mm (1.1 in)	9.2 mm (0.36 in)	4 years	20 of 100 (Routine)
19 February 1952	Fredericton Unb, CA	daily high min (Tie)	-3.9 C (25.0 F)	tie	52 years	5 of 100 (Routine)
11 February 1952	Fredericton Unb, CA	daily snowfall (Tie)	17.8 cm (7.0 in)	tie	73 years	7 of 100 (Routine)
9 February 1952	Fredericton Unb, CA	daily snowfall	33.5 cm (13.2 in)	18.3 cm (7.2 in)	52 years	52 of 100 (Notable)
9 February 1952	Fredericton Unb, CA	daily rain	33.5 mm (1.3 in)	15.5 mm (0.6 in)	1 year	28 of 100 (Routine)

Climate Trend

73 complete years, 1872 to 1951

One stripe for each of 73 complete years at Fredericton Unb, 1872 to 1951. Blue stripes are years cooler than the station's own mean of 4.8 C (40.7 F); red stripes are warmer. The coolest year was 1875, at 2.9 C (37.2 F), and the warmest was 1949, at 6.3 C (43.3 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Fredericton Unb as warming stripes, 1872 to 1951
Year	Annual mean temperature	Difference from the station mean
1872	4.3 C	-0.50 C
1875	2.9 C	-1.96 C
1876	4.1 C	-0.70 C
1877	5.1 C	+0.29 C
1878	5.7 C	+0.89 C
1879	3.9 C	-0.96 C
1880	4.6 C	-0.19 C
1881	5.1 C	+0.28 C
1882	4.3 C	-0.58 C
1883	3.4 C	-1.42 C
1884	4.2 C	-0.67 C
1885	4.1 C	-0.76 C
1886	4.6 C	-0.20 C
1887	4.1 C	-0.76 C
1888	3.9 C	-0.91 C
1889	6.0 C	+1.14 C
1890	3.9 C	-0.96 C
1891	5.4 C	+0.55 C
1892	5.0 C	+0.15 C
1893	3.9 C	-0.89 C
1896	4.3 C	-0.52 C
1897	4.7 C	-0.13 C
1898	5.5 C	+0.67 C
1899	4.8 C	-0.05 C
1900	4.9 C	+0.09 C
1902	5.4 C	+0.58 C
1904	3.7 C	-1.11 C
1905	4.5 C	-0.35 C
1907	3.9 C	-0.95 C
1908	5.0 C	+0.15 C
1909	5.1 C	+0.23 C
1910	5.4 C	+0.57 C
1911	4.7 C	-0.11 C
1912	4.3 C	-0.52 C
1913	5.7 C	+0.88 C
1914	4.2 C	-0.67 C
1915	6.0 C	+1.16 C
1916	5.1 C	+0.22 C
1917	3.7 C	-1.14 C
1918	4.3 C	-0.57 C
1919	5.1 C	+0.23 C
1920	4.8 C	-0.05 C
1921	5.6 C	+0.78 C
1922	4.8 C	-0.07 C
1923	4.1 C	-0.69 C
1924	4.7 C	-0.09 C
1925	4.7 C	-0.17 C
1926	3.9 C	-0.96 C
1927	5.6 C	+0.80 C
1928	5.0 C	+0.16 C
1929	4.8 C	+0.01 C
1930	5.1 C	+0.25 C
1931	6.0 C	+1.18 C
1932	5.3 C	+0.48 C
1933	4.6 C	-0.24 C
1934	3.8 C	-1.04 C
1935	4.4 C	-0.46 C
1936	4.8 C	-0.03 C
1937	6.2 C	+1.39 C
1938	5.6 C	+0.80 C
1939	4.7 C	-0.16 C
1940	4.6 C	-0.25 C
1941	5.2 C	+0.37 C
1942	5.7 C	+0.82 C
1943	4.6 C	-0.24 C
1944	5.8 C	+1.00 C
1945	5.7 C	+0.90 C
1946	5.7 C	+0.87 C
1947	5.8 C	+1.00 C
1948	5.2 C	+0.38 C
1949	6.3 C	+1.43 C
1950	5.3 C	+0.49 C
1951	6.0 C	+1.19 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1872 to 1951. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 73 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Fredericton Unb
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (0.1 to 0.2) per decade	0.3 F (0.1 to 0.4) per decade	1872 to 1951	73	Rise
Mean daily maximum	0.1 C (0.1 to 0.2) per decade	0.2 F (0.1 to 0.4) per decade	1872 to 1951	73	Rise
Mean daily minimum	0.2 C (0.1 to 0.2) per decade	0.3 F (0.1 to 0.4) per decade	1872 to 1951	73	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

1871 to 1952

Yearly extremes at Fredericton Unb: 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)	1935	33.3 C (91.9 F)	81
Coldest night (TNn)	-37.2 C (-35.0 F)	1884	-31.1 C (-24.0 F)	81
Wettest day (Rx1day)	119.4 mm (4.7 in)	1912	54.1 mm (2.1 in)	81
Wettest five days (Rx5day)	220.7 mm (8.7 in)	1909	82.1 mm (3.2 in)	81
Longest dry spell (CDD)	36 days	1918	14 days	81

Hottest day (TXx)

The hottest day of the year at Fredericton Unb, 1871 to 1952. The record is 38.3 C (100.9 F) in 1935, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at Fredericton Unb by year
Year	Hottest day (TXx)
1871	8.3 C (46.9 F)
1872	31.7 C (89.1 F)
1874	30.0 C (86.0 F)
1875	30.6 C (87.1 F)
1876	33.9 C (93.0 F)
1877	31.7 C (89.1 F)
1878	36.1 C (97.0 F)
1879	32.8 C (91.0 F)
1880	33.9 C (93.0 F)
1881	34.4 C (93.9 F)
1882	33.9 C (93.0 F)
1883	32.2 C (90.0 F)
1884	33.3 C (91.9 F)
1885	31.7 C (89.1 F)
1886	31.7 C (89.1 F)
1887	33.3 C (91.9 F)
1888	31.1 C (88.0 F)
1889	33.3 C (91.9 F)
1890	31.1 C (88.0 F)
1891	30.0 C (86.0 F)
1892	31.1 C (88.0 F)
1893	35.0 C (95.0 F)
1894	27.2 C (81.0 F)
1895	33.3 C (91.9 F)
1896	33.9 C (93.0 F)
1897	33.9 C (93.0 F)
1898	34.4 C (93.9 F)
1899	31.1 C (88.0 F)
1900	33.9 C (93.0 F)
1901	33.9 C (93.0 F)
1902	29.4 C (84.9 F)
1903	27.2 C (81.0 F)
1904	30.0 C (86.0 F)
1905	31.7 C (89.1 F)
1906	31.7 C (89.1 F)
1907	32.8 C (91.0 F)
1908	33.3 C (91.9 F)
1909	33.3 C (91.9 F)
1910	31.7 C (89.1 F)
1911	35.0 C (95.0 F)
1912	35.6 C (96.1 F)
1913	32.8 C (91.0 F)
1914	32.2 C (90.0 F)
1915	30.0 C (86.0 F)
1916	34.4 C (93.9 F)
1917	33.3 C (91.9 F)
1918	33.3 C (91.9 F)
1919	33.9 C (93.0 F)
1920	34.4 C (93.9 F)
1921	35.6 C (96.1 F)
1922	32.2 C (90.0 F)
1923	34.4 C (93.9 F)
1924	32.8 C (91.0 F)
1925	32.8 C (91.0 F)
1926	32.2 C (90.0 F)
1927	30.6 C (87.1 F)
1928	33.9 C (93.0 F)
1929	33.9 C (93.0 F)
1930	33.9 C (93.0 F)
1931	33.9 C (93.0 F)
1932	33.3 C (91.9 F)
1933	31.1 C (88.0 F)
1934	31.1 C (88.0 F)
1935	38.3 C (100.9 F)
1936	28.9 C (84.0 F)
1937	33.3 C (91.9 F)
1938	33.3 C (91.9 F)
1939	33.9 C (93.0 F)
1940	32.8 C (91.0 F)
1941	33.3 C (91.9 F)
1942	32.8 C (91.0 F)
1943	33.9 C (93.0 F)
1944	36.1 C (97.0 F)
1945	33.3 C (91.9 F)
1946	32.8 C (91.0 F)
1947	35.0 C (95.0 F)
1948	32.8 C (91.0 F)
1949	35.6 C (96.1 F)
1950	31.1 C (88.0 F)
1951	31.7 C (89.1 F)
1952	35.6 C (96.1 F)

Coldest night (TNn)

The coldest night of the year at Fredericton Unb, 1871 to 1952. The record is -37.2 C (-35.0 F) in 1884, marked on the chart; the median year is -31.1 C (-24.0 F).

Coldest night (TNn) at Fredericton Unb by year
Year	Coldest night (TNn)
1871	-28.9 C (-20.0 F)
1872	-29.4 C (-20.9 F)
1874	-34.4 C (-29.9 F)
1875	-35.0 C (-31.0 F)
1876	-31.1 C (-24.0 F)
1877	-34.4 C (-29.9 F)
1878	-34.4 C (-29.9 F)
1879	-35.6 C (-32.1 F)
1880	-30.0 C (-22.0 F)
1881	-30.6 C (-23.1 F)
1882	-33.9 C (-29.0 F)
1883	-32.8 C (-27.0 F)
1884	-37.2 C (-35.0 F)
1885	-30.6 C (-23.1 F)
1886	-31.1 C (-24.0 F)
1887	-36.7 C (-34.1 F)
1888	-30.0 C (-22.0 F)
1889	-36.1 C (-33.0 F)
1890	-31.1 C (-24.0 F)
1891	-28.3 C (-18.9 F)
1892	-25.0 C (-13.0 F)
1893	-32.2 C (-26.0 F)
1894	-35.0 C (-31.0 F)
1895	-26.1 C (-15.0 F)
1896	-28.9 C (-20.0 F)
1897	-27.8 C (-18.0 F)
1898	-35.6 C (-32.1 F)
1899	-27.2 C (-17.0 F)
1900	-33.9 C (-29.0 F)
1901	-28.9 C (-20.0 F)
1902	-30.0 C (-22.0 F)
1903	-29.4 C (-20.9 F)
1904	-37.2 C (-35.0 F)
1905	-36.7 C (-34.1 F)
1906	-31.1 C (-24.0 F)
1907	-32.2 C (-26.0 F)
1908	-33.9 C (-29.0 F)
1909	-32.8 C (-27.0 F)
1910	-31.7 C (-25.1 F)
1911	-35.0 C (-31.0 F)
1912	-35.6 C (-32.1 F)
1913	-28.9 C (-20.0 F)
1914	-31.1 C (-24.0 F)
1915	-33.9 C (-29.0 F)
1916	-28.9 C (-20.0 F)
1917	-31.7 C (-25.1 F)
1918	-33.3 C (-27.9 F)
1919	-32.2 C (-26.0 F)
1920	-31.1 C (-24.0 F)
1921	-28.3 C (-18.9 F)
1922	-37.2 C (-35.0 F)
1923	-35.6 C (-32.1 F)
1924	-30.0 C (-22.0 F)
1925	-37.2 C (-35.0 F)
1926	-30.0 C (-22.0 F)
1927	-28.9 C (-20.0 F)
1928	-27.2 C (-17.0 F)
1929	-31.1 C (-24.0 F)
1930	-31.1 C (-24.0 F)
1931	-33.3 C (-27.9 F)
1932	-28.3 C (-18.9 F)
1933	-31.7 C (-25.1 F)
1934	-35.6 C (-32.1 F)
1935	-32.2 C (-26.0 F)
1936	-27.2 C (-17.0 F)
1937	-29.4 C (-20.9 F)
1938	-31.1 C (-24.0 F)
1939	-28.3 C (-18.9 F)
1940	-28.3 C (-18.9 F)
1941	-29.4 C (-20.9 F)
1942	-33.9 C (-29.0 F)
1943	-32.8 C (-27.0 F)
1944	-28.3 C (-18.9 F)
1945	-30.0 C (-22.0 F)
1946	-28.3 C (-18.9 F)
1947	-31.7 C (-25.1 F)
1948	-35.0 C (-31.0 F)
1949	-29.4 C (-20.9 F)
1950	-29.4 C (-20.9 F)
1951	-31.7 C (-25.1 F)
1952	-28.9 C (-20.0 F)

Wettest day (Rx1day)

The wettest day of the year at Fredericton Unb, 1871 to 1952. The record is 119.4 mm (4.7 in) in 1912, marked on the chart; the median year is 54.1 mm (2.1 in).

Wettest day (Rx1day) at Fredericton Unb by year
Year	Wettest day (Rx1day)
1871	29.0 mm (1.1 in)
1872	55.6 mm (2.2 in)
1874	61.5 mm (2.4 in)
1875	47.0 mm (1.9 in)
1876	96.8 mm (3.8 in)
1877	48.8 mm (1.9 in)
1878	35.3 mm (1.4 in)
1879	89.7 mm (3.5 in)
1880	56.4 mm (2.2 in)
1881	58.9 mm (2.3 in)
1882	65.3 mm (2.6 in)
1883	38.9 mm (1.5 in)
1884	62.0 mm (2.4 in)
1885	62.2 mm (2.4 in)
1886	45.5 mm (1.8 in)
1887	36.8 mm (1.4 in)
1888	81.0 mm (3.2 in)
1889	39.6 mm (1.6 in)
1890	56.9 mm (2.2 in)
1891	40.1 mm (1.6 in)
1892	57.2 mm (2.3 in)
1893	53.3 mm (2.1 in)
1894	30.5 mm (1.2 in)
1895	65.8 mm (2.6 in)
1896	51.8 mm (2.0 in)
1897	34.3 mm (1.4 in)
1898	52.6 mm (2.1 in)
1899	34.5 mm (1.4 in)
1900	90.2 mm (3.6 in)
1901	61.5 mm (2.4 in)
1902	59.2 mm (2.3 in)
1903	41.7 mm (1.6 in)
1904	52.8 mm (2.1 in)
1905	57.2 mm (2.3 in)
1906	57.9 mm (2.3 in)
1907	74.4 mm (2.9 in)
1908	61.0 mm (2.4 in)
1909	91.9 mm (3.6 in)
1910	68.6 mm (2.7 in)
1911	71.9 mm (2.8 in)
1912	119.4 mm (4.7 in)
1913	45.5 mm (1.8 in)
1914	42.4 mm (1.7 in)
1915	73.9 mm (2.9 in)
1916	52.3 mm (2.1 in)
1917	79.0 mm (3.1 in)
1918	42.7 mm (1.7 in)
1919	41.4 mm (1.6 in)
1920	53.8 mm (2.1 in)
1921	34.0 mm (1.3 in)
1922	41.1 mm (1.6 in)
1923	41.7 mm (1.6 in)
1924	53.1 mm (2.1 in)
1925	55.4 mm (2.2 in)
1926	62.0 mm (2.4 in)
1927	46.5 mm (1.8 in)
1928	50.3 mm (2.0 in)
1929	52.1 mm (2.1 in)
1930	48.3 mm (1.9 in)
1931	67.3 mm (2.6 in)
1932	67.1 mm (2.6 in)
1933	111.8 mm (4.4 in)
1934	56.6 mm (2.2 in)
1935	47.2 mm (1.9 in)
1936	49.8 mm (2.0 in)
1937	67.3 mm (2.6 in)
1938	51.1 mm (2.0 in)
1939	74.7 mm (2.9 in)
1940	62.2 mm (2.4 in)
1941	41.7 mm (1.6 in)
1942	50.8 mm (2.0 in)
1943	55.4 mm (2.2 in)
1944	54.6 mm (2.1 in)
1945	45.2 mm (1.8 in)
1946	39.9 mm (1.6 in)
1947	41.9 mm (1.6 in)
1948	39.6 mm (1.6 in)
1949	88.9 mm (3.5 in)
1950	57.4 mm (2.3 in)
1951	54.1 mm (2.1 in)
1952	64.3 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Fredericton Unb, 1871 to 1952. The record is 220.7 mm (8.7 in) in 1909, marked on the chart; the median year is 82.1 mm (3.2 in).

Wettest five days (Rx5day) at Fredericton Unb by year
Year	Wettest five days (Rx5day)
1871	38.7 mm (1.5 in)
1872	85.3 mm (3.4 in)
1874	104.1 mm (4.1 in)
1875	63.0 mm (2.5 in)
1876	151.0 mm (5.9 in)
1877	71.2 mm (2.8 in)
1878	57.0 mm (2.2 in)
1879	111.3 mm (4.4 in)
1880	74.7 mm (2.9 in)
1881	134.9 mm (5.3 in)
1882	92.7 mm (3.6 in)
1883	50.1 mm (2.0 in)
1884	93.6 mm (3.7 in)
1885	70.9 mm (2.8 in)
1886	76.0 mm (3.0 in)
1887	65.0 mm (2.6 in)
1888	146.4 mm (5.8 in)
1889	75.2 mm (3.0 in)
1890	96.8 mm (3.8 in)
1891	58.1 mm (2.3 in)
1892	111.3 mm (4.4 in)
1893	72.1 mm (2.8 in)
1894	44.2 mm (1.7 in)
1895	88.7 mm (3.5 in)
1896	89.9 mm (3.5 in)
1897	67.1 mm (2.6 in)
1898	104.9 mm (4.1 in)
1899	73.5 mm (2.9 in)
1900	211.8 mm (8.3 in)
1901	68.1 mm (2.7 in)
1902	99.4 mm (3.9 in)
1903	68.5 mm (2.7 in)
1904	67.3 mm (2.6 in)
1905	82.1 mm (3.2 in)
1906	71.3 mm (2.8 in)
1907	107.4 mm (4.2 in)
1908	78.5 mm (3.1 in)
1909	220.7 mm (8.7 in)
1910	81.6 mm (3.2 in)
1911	82.1 mm (3.2 in)
1912	123.0 mm (4.8 in)
1913	78.7 mm (3.1 in)
1914	66.6 mm (2.6 in)
1915	84.8 mm (3.3 in)
1916	60.2 mm (2.4 in)
1917	84.3 mm (3.3 in)
1918	75.6 mm (3.0 in)
1919	87.8 mm (3.5 in)
1920	70.1 mm (2.8 in)
1921	52.8 mm (2.1 in)
1922	103.0 mm (4.1 in)
1923	78.6 mm (3.1 in)
1924	60.2 mm (2.4 in)
1925	93.5 mm (3.7 in)
1926	83.8 mm (3.3 in)
1927	98.0 mm (3.9 in)
1928	53.8 mm (2.1 in)
1929	55.9 mm (2.2 in)
1930	94.0 mm (3.7 in)
1931	99.6 mm (3.9 in)
1932	86.6 mm (3.4 in)
1933	143.2 mm (5.6 in)
1934	67.6 mm (2.7 in)
1935	76.5 mm (3.0 in)
1936	67.6 mm (2.7 in)
1937	97.5 mm (3.8 in)
1938	73.4 mm (2.9 in)
1939	93.5 mm (3.7 in)
1940	90.7 mm (3.6 in)
1941	96.5 mm (3.8 in)
1942	71.6 mm (2.8 in)
1943	92.0 mm (3.6 in)
1944	98.8 mm (3.9 in)
1945	94.2 mm (3.7 in)
1946	59.7 mm (2.4 in)
1947	72.6 mm (2.9 in)
1948	67.8 mm (2.7 in)
1949	101.6 mm (4.0 in)
1950	101.4 mm (4.0 in)
1951	88.4 mm (3.5 in)
1952	79.8 mm (3.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Fredericton Unb, 1871 to 1952. The record is 36 days in 1918, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Fredericton Unb by year
Year	Longest dry spell (CDD)
1871	6 days
1872	14 days
1874	15 days
1875	13 days
1876	12 days
1877	12 days
1878	12 days
1879	11 days
1880	11 days
1881	20 days
1882	19 days
1883	10 days
1884	11 days
1885	18 days
1886	25 days
1887	17 days
1888	8 days
1889	29 days
1890	15 days
1891	14 days
1892	13 days
1893	18 days
1894	18 days
1895	15 days
1896	19 days
1897	15 days
1898	11 days
1899	22 days
1900	15 days
1901	12 days
1902	13 days
1903	10 days
1904	13 days
1905	16 days
1906	13 days
1907	14 days
1908	15 days
1909	12 days
1910	11 days
1911	23 days
1912	14 days
1913	9 days
1914	13 days
1915	14 days
1916	15 days
1917	10 days
1918	36 days
1919	11 days
1920	18 days
1921	15 days
1922	14 days
1923	13 days
1924	18 days
1925	11 days
1926	11 days
1927	14 days
1928	12 days
1929	13 days
1930	18 days
1931	14 days
1932	14 days
1933	11 days
1934	16 days
1935	12 days
1936	8 days
1937	17 days
1938	17 days
1939	15 days
1940	13 days
1941	14 days
1942	13 days
1943	11 days
1944	17 days
1945	14 days
1946	16 days
1947	15 days
1948	16 days
1949	13 days
1950	18 days
1951	16 days
1952	22 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

73 years with a frost

Across 73 years with a frost, the median last spring frost at Fredericton Unb falls on 19 May and the median first autumn frost on 24 September, which leaves a median of 127 days between them.

In 1922 to 1951 the median growing season was 125 days. That is 4 days fewer than in 1872 to 1908.

Fitted over all years, the growing season changes by -1.1 days per decade at this station.

Frost dates and growing season at Fredericton Unb
Measure	Median, all years	Earliest period (1872 to 1908)	Recent period (1922 to 1951)	Recent against earliest	Fitted trend
Last spring frost	19 May	17 May	20 May	3 days later	+0.5 days per decade
First autumn frost	24 September	24 September	24 September	no change	-0.5 days per decade
Growing days	127 days	129 days	125 days	4 days fewer	-1.1 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

74 years, 1872 to 1951

A day with at least 53.5 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 120.7 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Fredericton Unb: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	53.5 mm (2.1 in)
5 years	68.6 mm (2.7 in)
10 years	79.7 mm (3.1 in)
25 years	95.0 mm (3.7 in)
50 years	107.4 mm (4.2 in)
100 years	120.7 mm (4.8 in)	Longer than the 74 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, 74 years of values from 1872 to 1951.

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: 119.4 mm (4.7 in) in 1912; 111.8 mm (4.4 in) in 1933; 96.8 mm (3.8 in) in 1876.

Station Changes

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

Download the Data

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