North Bay Weather Records (CA006085682)

Record envelope, standing records and threshold days for North Bay (CA006085682), Ontario, Canada, with 96 years of record.

Key Facts for North Bay

North Bay (CA006085682) is a weather station in Ontario, Canada at 46.32 latitude and -79.47 longitude, 201 m (659 ft) above sea level.
The station reports from 1887 to 1982, 96 years of record.
1,464 records set at North Bay still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
North Bay set a monthly record low maximum temperature of -28.0 C (-18.4 F) on 17 January 1982.

About the Station

Location: Ontario, Canada, 46.32 latitude, -79.47 longitude.
Elevation: 201 m (659 ft).
Period of record: 1887 to 1982, 96 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 North Bay. 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 North Bay, 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)	-44.4 C (-47.9 F)	n/a	n/a
Feb	12.8 C (55.0 F)	-42.8 C (-45.0 F)	n/a	n/a
Mar	23.9 C (75.0 F)	-37.2 C (-35.0 F)	n/a	n/a
Apr	28.9 C (84.0 F)	-21.7 C (-7.1 F)	n/a	n/a
May	32.2 C (90.0 F)	-9.4 C (15.1 F)	n/a	n/a
Jun	36.1 C (97.0 F)	-3.3 C (26.1 F)	n/a	n/a
Jul	37.2 C (99.0 F)	-2.2 C (28.0 F)	n/a	n/a
Aug	34.4 C (93.9 F)	0.0 C (32.0 F)	n/a	n/a
Sep	34.4 C (93.9 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	27.8 C (82.0 F)	-12.8 C (9.0 F)	n/a	n/a
Nov	21.1 C (70.0 F)	-26.1 C (-15.0 F)	n/a	n/a
Dec	13.9 C (57.0 F)	-43.3 C (-45.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at North Bay still stand. 1888 holds the most, with 61.

Standing records at North Bay by the year they were set
Year set	Standing records
1887	3
1888	61
1889	25
1890	3
1891	8
1892	11
1893	1
1894	21
1895	38
1896	25
1897	44
1898	4
1899	22
1900	11
1902	15
1903	9
1915	13
1916	27
1917	18
1918	22
1919	28
1920	5
1924	6
1925	22
1926	16
1927	19
1928	15
1929	24
1930	14
1931	15
1932	16
1933	30
1934	25
1935	9
1936	27
1937	17
1938	16
1939	10
1940	16
1941	8
1942	20
1943	19
1944	15
1945	28
1946	34
1947	26
1948	18
1949	26
1950	24
1951	27
1952	12
1953	17
1954	21
1955	17
1956	19
1957	22
1958	18
1959	17
1960	3
1961	15
1962	15
1963	23
1964	23
1965	23
1966	10
1967	12
1968	22
1969	13
1970	15
1971	19
1972	14
1973	20
1974	13
1975	19
1976	16
1977	15
1978	10
1979	22
1980	16
1981	25
1982	2

All-Time Record Progression

1 new records

1 all-time records were set at North Bay between 21 August 1972 and 21 August 1972. Each dot is a new record.

Wettest Day of Each Month

Aug: 83.8 mm (3.3 in)

The wettest day on record for each calendar month at North Bay. The most was 83.8 mm (3.3 in) on 21 August 1972.

Record daily precipitation for each month at North Bay
Month	Record daily precipitation (mm)	Date
Jan	30.2 mm (1.2 in)	25 January 1950
Feb	37.8 mm (1.5 in)	1 February 1968
Mar	38.1 mm (1.5 in)	16 March 1919
Apr	32.3 mm (1.3 in)	11 April 1947
May	47.2 mm (1.9 in)	16 May 1976
Jun	75.2 mm (3.0 in)	26 June 1973
Jul	81.3 mm (3.2 in)	5 July 1948
Aug	83.8 mm (3.3 in)	21 August 1972
Sep	74.9 mm (2.9 in)	21 September 1947
Oct	63.2 mm (2.5 in)	10 October 1932
Nov	47.5 mm (1.9 in)	7 November 1924
Dec	40.6 mm (1.6 in)	14 December 1901

Period of Record Coverage

1887 to 1982

82 years of record at North Bay, 1887 to 1982. 23 years have data for under 90 percent of days and are left out of rankings: 1887, 1888, 1889, 1890, 1891, 1892, 1893, 1894 and others.

Days with data per year at North Bay
Year	Days with data	Share of year	Complete
1887	31	8%	No
1888	301	82%	No
1889	212	58%	No
1890	60	16%	No
1891	174	48%	No
1892	243	66%	No
1893	120	33%	No
1894	214	59%	No
1895	319	87%	No
1896	359	98%	Yes
1897	333	91%	Yes
1898	116	32%	No
1899	85	23%	No
1900	84	23%	No
1901	36	10%	No
1902	328	90%	No
1903	118	32%	No
1915	203	56%	No
1916	366	100%	Yes
1917	362	99%	Yes
1918	365	100%	Yes
1919	334	92%	Yes
1920	30	8%	No
1924	159	43%	No
1925	365	100%	Yes
1926	365	100%	Yes
1927	342	94%	Yes
1928	366	100%	Yes
1929	361	99%	Yes
1930	319	87%	No
1931	359	98%	Yes
1932	365	100%	Yes
1933	364	100%	Yes
1934	360	99%	Yes
1935	315	86%	No
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	361	99%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	353	97%	Yes
1950	356	98%	Yes
1951	357	98%	Yes
1952	347	95%	Yes
1953	354	97%	Yes
1954	321	88%	No
1955	357	98%	Yes
1956	351	96%	Yes
1957	338	93%	Yes
1958	339	93%	Yes
1959	342	94%	Yes
1960	348	95%	Yes
1961	344	94%	Yes
1962	353	97%	Yes
1963	363	99%	Yes
1964	354	97%	Yes
1965	357	98%	Yes
1966	354	97%	Yes
1967	363	99%	Yes
1968	362	99%	Yes
1969	334	92%	Yes
1970	325	89%	No
1971	360	99%	Yes
1972	362	99%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	353	96%	Yes
1977	349	96%	Yes
1978	365	100%	Yes
1979	363	99%	Yes
1980	359	98%	Yes
1981	354	97%	Yes
1982	59	16%	No

Latest Records

Latest records at North Bay
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 January 1982	North Bay, CA	monthly low max	-28.0 C (-18.4 F)	0.2 C (0.4 F)	83 years	43 of 100 (Notable)
9 January 1982	North Bay, CA	daily low max	-23.0 C (-9.4 F)	1.9 C (3.4 F)	4 years	12 of 100 (Routine)
4 January 1982	North Bay, CA	daily snowfall	11.0 cm (4.3 in)	5.9 cm (2.3 in)	63 years	41 of 100 (Notable)
4 January 1982	North Bay, CA	daily rain	11.0 mm (0.4 in)	2.9 mm (0.11 in)	36 years	20 of 100 (Routine)
15 November 1981	North Bay, CA	daily high max	15.0 C (59.0 F)	1.7 C (3.1 F)	55 years	28 of 100 (Routine)
14 November 1981	North Bay, CA	daily high max	13.0 C (55.4 F)	0.2 C (0.4 F)	28 years	17 of 100 (Routine)
21 October 1981	North Bay, CA	daily low max	2.0 C (35.6 F)	0.8 C (1.4 F)	56 years	26 of 100 (Routine)
18 October 1981	North Bay, CA	daily rain	41.0 mm (1.6 in)	20.4 mm (0.8 in)	44 years	48 of 100 (Notable)
6 October 1981	North Bay, CA	daily rain	31.0 mm (1.2 in)	2.6 mm (0.10 in)	4 years	13 of 100 (Routine)
9 September 1981	North Bay, CA	daily rain	38.0 mm (1.5 in)	8.8 mm (0.35 in)	23 years	23 of 100 (Routine)
4 September 1981	North Bay, CA	daily rain	40.4 mm (1.6 in)	3.1 mm (0.12 in)	24 years	19 of 100 (Routine)
29 August 1981	North Bay, CA	daily rain	42.5 mm (1.7 in)	29.5 mm (1.2 in)	23 years	45 of 100 (Notable)
22 July 1981	North Bay, CA	daily low min	7.0 C (44.6 F)	1.9 C (3.4 F)	91 years	40 of 100 (Notable)
3 June 1981	North Bay, CA	daily rain	19.4 mm (0.8 in)	4.7 mm (0.19 in)	42 years	20 of 100 (Routine)
29 May 1981	North Bay, CA	daily rain	8.6 mm (0.34 in)	0.5 mm (0.02 in)	12 years	12 of 100 (Routine)
11 May 1981	North Bay, CA	daily low max	6.0 C (42.8 F)	1.8 C (3.2 F)	43 years	24 of 100 (Routine)
20 April 1981	North Bay, CA	daily low max	0.5 C (32.9 F)	1.2 C (2.2 F)	52 years	26 of 100 (Routine)
13 April 1981	North Bay, CA	daily rain	22.4 mm (0.9 in)	9.4 mm (0.37 in)	30 years	20 of 100 (Routine)
11 April 1981	North Bay, CA	daily high min	7.0 C (44.6 F)	1.4 C (2.5 F)	36 years	21 of 100 (Routine)
4 April 1981	North Bay, CA	daily high max	17.0 C (62.6 F)	2.0 C (3.6 F)	52 years	27 of 100 (Routine)

Climate Trend

55 complete years, 1896 to 1981

One stripe for each of 55 complete years at North Bay, 1896 to 1981. Blue stripes are years cooler than the station's own mean of 4.5 C (40.0 F); red stripes are warmer. The coolest year was 1917, at 2.5 C (36.5 F), and the warmest was 1953, at 6.2 C (43.1 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at North Bay as warming stripes, 1896 to 1981
Year	Annual mean temperature	Difference from the station mean
1896	2.7 C	-1.77 C
1916	4.4 C	-0.11 C
1917	2.5 C	-1.97 C
1918	3.9 C	-0.55 C
1925	4.0 C	-0.44 C
1926	2.8 C	-1.67 C
1928	4.0 C	-0.44 C
1929	3.6 C	-0.90 C
1931	6.1 C	+1.64 C
1932	5.3 C	+0.82 C
1933	4.5 C	+0.03 C
1934	3.4 C	-1.06 C
1936	3.8 C	-0.63 C
1937	5.8 C	+1.30 C
1938	5.1 C	+0.61 C
1939	3.9 C	-0.56 C
1940	3.5 C	-0.94 C
1941	5.0 C	+0.50 C
1942	5.0 C	+0.50 C
1943	3.6 C	-0.82 C
1944	4.8 C	+0.29 C
1945	4.4 C	-0.07 C
1946	4.8 C	+0.31 C
1947	4.6 C	+0.11 C
1948	5.0 C	+0.50 C
1949	5.2 C	+0.72 C
1950	3.7 C	-0.74 C
1951	4.5 C	+0.07 C
1952	5.4 C	+0.90 C
1953	6.2 C	+1.69 C
1954	4.4 C	-0.08 C
1955	5.2 C	+0.75 C
1956	3.9 C	-0.56 C
1958	4.2 C	-0.23 C
1959	4.5 C	0.00 C
1960	4.6 C	+0.13 C
1961	4.9 C	+0.48 C
1962	4.6 C	+0.17 C
1963	4.3 C	-0.19 C
1964	5.5 C	+1.03 C
1965	4.1 C	-0.36 C
1966	4.8 C	+0.31 C
1967	4.3 C	-0.15 C
1968	5.0 C	+0.53 C
1971	4.9 C	+0.44 C
1972	3.5 C	-0.97 C
1973	5.7 C	+1.23 C
1974	4.3 C	-0.20 C
1975	5.4 C	+0.95 C
1976	3.7 C	-0.73 C
1977	5.1 C	+0.66 C
1978	3.8 C	-0.64 C
1979	4.7 C	+0.20 C
1980	3.7 C	-0.74 C
1981	5.4 C	+0.89 C

The annual mean temperature here has risen by 0.14 C (0.03 to 0.25) per decade over 1896 to 1981. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at North Bay
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.14 C (0.03 to 0.25) per decade	0.3 F (0.1 to 0.4) per decade	1896 to 1981	55	Rise
Mean daily maximum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.1 to 0.3) per decade	1896 to 1981	55	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1896 to 1981	55	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

1887 to 1982

Yearly extremes at North Bay: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.2 C (99.0 F)	1931	31.7 C (89.1 F)	82
Coldest night (TNn)	-44.4 C (-47.9 F)	1892	-35.3 C (-31.5 F)	82
Wettest day (Rx1day)	83.8 mm (3.3 in)	1972	40.6 mm (1.6 in)	70
Wettest five days (Rx5day)	132.8 mm (5.2 in)	1972	61.3 mm (2.4 in)	70
Longest dry spell (CDD)	36 days	1927	14 days	70

Hottest day (TXx)

The hottest day of the year at North Bay, 1887 to 1982. The record is 37.2 C (99.0 F) in 1931, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at North Bay by year
Year	Hottest day (TXx)
1887	7.2 C (45.0 F)
1888	30.0 C (86.0 F)
1889	34.4 C (93.9 F)
1890	31.1 C (88.0 F)
1891	26.1 C (79.0 F)
1892	31.1 C (88.0 F)
1893	22.2 C (72.0 F)
1894	32.8 C (91.0 F)
1895	31.7 C (89.1 F)
1896	30.6 C (87.1 F)
1897	36.7 C (98.1 F)
1898	25.6 C (78.1 F)
1899	2.2 C (36.0 F)
1900	26.7 C (80.1 F)
1901	7.2 C (45.0 F)
1902	28.9 C (84.0 F)
1903	16.1 C (61.0 F)
1915	30.6 C (87.1 F)
1916	35.6 C (96.1 F)
1917	34.4 C (93.9 F)
1918	35.6 C (96.1 F)
1919	36.1 C (97.0 F)
1920	22.8 C (73.0 F)
1924	28.3 C (82.9 F)
1925	31.7 C (89.1 F)
1926	30.0 C (86.0 F)
1927	35.6 C (96.1 F)
1928	31.7 C (89.1 F)
1929	31.1 C (88.0 F)
1930	31.1 C (88.0 F)
1931	37.2 C (99.0 F)
1932	31.1 C (88.0 F)
1933	32.2 C (90.0 F)
1934	32.2 C (90.0 F)
1935	32.8 C (91.0 F)
1936	36.7 C (98.1 F)
1937	33.3 C (91.9 F)
1938	32.2 C (90.0 F)
1939	32.8 C (91.0 F)
1940	32.8 C (91.0 F)
1941	33.9 C (93.0 F)
1942	31.7 C (89.1 F)
1943	33.9 C (93.0 F)
1944	33.9 C (93.0 F)
1945	32.2 C (90.0 F)
1946	31.7 C (89.1 F)
1947	34.4 C (93.9 F)
1948	33.9 C (93.0 F)
1949	32.2 C (90.0 F)
1950	30.0 C (86.0 F)
1951	30.0 C (86.0 F)
1952	31.7 C (89.1 F)
1953	34.4 C (93.9 F)
1954	28.9 C (84.0 F)
1955	33.9 C (93.0 F)
1956	32.8 C (91.0 F)
1957	31.1 C (88.0 F)
1958	30.6 C (87.1 F)
1959	31.7 C (89.1 F)
1960	29.4 C (84.9 F)
1961	29.4 C (84.9 F)
1962	32.2 C (90.0 F)
1963	33.3 C (91.9 F)
1964	33.9 C (93.0 F)
1965	29.4 C (84.9 F)
1966	33.9 C (93.0 F)
1967	30.0 C (86.0 F)
1968	32.8 C (91.0 F)
1969	32.2 C (90.0 F)
1970	32.2 C (90.0 F)
1971	31.1 C (88.0 F)
1972	30.0 C (86.0 F)
1973	31.1 C (88.0 F)
1974	30.6 C (87.1 F)
1975	34.4 C (93.9 F)
1976	29.4 C (84.9 F)
1977	33.3 C (91.9 F)
1978	32.0 C (89.6 F)
1979	31.5 C (88.7 F)
1980	31.0 C (87.8 F)
1981	32.5 C (90.5 F)
1982	3.0 C (37.4 F)

Coldest night (TNn)

The coldest night of the year at North Bay, 1887 to 1982. The record is -44.4 C (-47.9 F) in 1892, marked on the chart; the median year is -35.3 C (-31.5 F).

Coldest night (TNn) at North Bay by year
Year	Coldest night (TNn)
1887	-30.0 C (-22.0 F)
1888	-37.2 C (-35.0 F)
1889	-36.7 C (-34.1 F)
1890	-28.3 C (-18.9 F)
1891	-34.4 C (-29.9 F)
1892	-44.4 C (-47.9 F)
1893	-34.4 C (-29.9 F)
1894	-27.8 C (-18.0 F)
1895	-41.1 C (-42.0 F)
1896	-35.6 C (-32.1 F)
1897	-31.7 C (-25.1 F)
1898	-36.1 C (-33.0 F)
1899	-39.4 C (-38.9 F)
1900	-36.1 C (-33.0 F)
1901	-26.7 C (-16.1 F)
1902	-33.9 C (-29.0 F)
1903	-36.1 C (-33.0 F)
1915	-23.3 C (-9.9 F)
1916	-30.6 C (-23.1 F)
1917	-40.0 C (-40.0 F)
1918	-41.1 C (-42.0 F)
1919	-32.2 C (-26.0 F)
1920	-30.0 C (-22.0 F)
1924	-33.3 C (-27.9 F)
1925	-34.4 C (-29.9 F)
1926	-36.7 C (-34.1 F)
1927	-37.2 C (-35.0 F)
1928	-35.6 C (-32.1 F)
1929	-35.6 C (-32.1 F)
1930	-35.0 C (-31.0 F)
1931	-33.9 C (-29.0 F)
1932	-33.3 C (-27.9 F)
1933	-43.3 C (-45.9 F)
1934	-41.1 C (-42.0 F)
1935	-36.7 C (-34.1 F)
1936	-34.4 C (-29.9 F)
1937	-29.4 C (-20.9 F)
1938	-33.9 C (-29.0 F)
1939	-36.7 C (-34.1 F)
1940	-32.8 C (-27.0 F)
1941	-37.2 C (-35.0 F)
1942	-41.7 C (-43.1 F)
1943	-40.0 C (-40.0 F)
1944	-33.9 C (-29.0 F)
1945	-39.4 C (-38.9 F)
1946	-35.6 C (-32.1 F)
1947	-35.6 C (-32.1 F)
1948	-38.9 C (-38.0 F)
1949	-29.4 C (-20.9 F)
1950	-37.2 C (-35.0 F)
1951	-39.4 C (-38.9 F)
1952	-37.8 C (-36.0 F)
1953	-32.2 C (-26.0 F)
1954	-35.6 C (-32.1 F)
1955	-33.9 C (-29.0 F)
1956	-30.0 C (-22.0 F)
1957	-36.7 C (-34.1 F)
1958	-34.4 C (-29.9 F)
1959	-34.4 C (-29.9 F)
1960	-35.6 C (-32.1 F)
1961	-32.2 C (-26.0 F)
1962	-34.4 C (-29.9 F)
1963	-35.0 C (-31.0 F)
1964	-34.4 C (-29.9 F)
1965	-36.7 C (-34.1 F)
1966	-33.3 C (-27.9 F)
1967	-37.2 C (-35.0 F)
1968	-37.8 C (-36.0 F)
1969	-31.7 C (-25.1 F)
1970	-31.7 C (-25.1 F)
1971	-36.1 C (-33.0 F)
1972	-36.7 C (-34.1 F)
1973	-32.2 C (-26.0 F)
1974	-30.6 C (-23.1 F)
1975	-33.9 C (-29.0 F)
1976	-37.8 C (-36.0 F)
1977	-32.0 C (-25.6 F)
1978	-32.2 C (-26.0 F)
1979	-35.0 C (-31.0 F)
1980	-37.0 C (-34.6 F)
1981	-38.0 C (-36.4 F)
1982	-36.0 C (-32.8 F)

Wettest day (Rx1day)

The wettest day of the year at North Bay, 1887 to 1982. The record is 83.8 mm (3.3 in) in 1972, marked on the chart; the median year is 40.6 mm (1.6 in).

Wettest day (Rx1day) at North Bay by year
Year	Wettest day (Rx1day)
1887	17.8 mm (0.7 in)
1888	n/a
1889	n/a
1890	15.2 mm (0.6 in)
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	12.7 mm (0.5 in)
1896	5.1 mm (0.20 in)
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	40.6 mm (1.6 in)
1902	n/a
1903	n/a
1915	35.8 mm (1.4 in)
1916	32.5 mm (1.3 in)
1917	32.3 mm (1.3 in)
1918	39.6 mm (1.6 in)
1919	56.1 mm (2.2 in)
1920	12.7 mm (0.5 in)
1924	47.5 mm (1.9 in)
1925	26.4 mm (1.0 in)
1926	32.3 mm (1.3 in)
1927	34.3 mm (1.4 in)
1928	41.7 mm (1.6 in)
1929	28.7 mm (1.1 in)
1930	32.5 mm (1.3 in)
1931	33.5 mm (1.3 in)
1932	63.2 mm (2.5 in)
1933	36.8 mm (1.4 in)
1934	35.6 mm (1.4 in)
1935	76.2 mm (3.0 in)
1936	20.3 mm (0.8 in)
1937	22.9 mm (0.9 in)
1938	36.8 mm (1.4 in)
1939	25.4 mm (1.0 in)
1940	55.6 mm (2.2 in)
1941	39.4 mm (1.6 in)
1942	34.8 mm (1.4 in)
1943	54.6 mm (2.1 in)
1944	59.4 mm (2.3 in)
1945	32.8 mm (1.3 in)
1946	29.0 mm (1.1 in)
1947	74.9 mm (2.9 in)
1948	81.3 mm (3.2 in)
1949	33.5 mm (1.3 in)
1950	30.2 mm (1.2 in)
1951	42.4 mm (1.7 in)
1952	69.1 mm (2.7 in)
1953	29.5 mm (1.2 in)
1954	48.5 mm (1.9 in)
1955	43.2 mm (1.7 in)
1956	40.4 mm (1.6 in)
1957	50.3 mm (2.0 in)
1958	40.6 mm (1.6 in)
1959	49.3 mm (1.9 in)
1960	56.1 mm (2.2 in)
1961	41.1 mm (1.6 in)
1962	30.0 mm (1.2 in)
1963	42.9 mm (1.7 in)
1964	27.9 mm (1.1 in)
1965	53.6 mm (2.1 in)
1966	40.6 mm (1.6 in)
1967	47.8 mm (1.9 in)
1968	49.3 mm (1.9 in)
1969	50.8 mm (2.0 in)
1970	66.0 mm (2.6 in)
1971	51.8 mm (2.0 in)
1972	83.8 mm (3.3 in)
1973	75.2 mm (3.0 in)
1974	46.2 mm (1.8 in)
1975	60.5 mm (2.4 in)
1976	47.2 mm (1.9 in)
1977	36.3 mm (1.4 in)
1978	46.0 mm (1.8 in)
1979	30.6 mm (1.2 in)
1980	45.6 mm (1.8 in)
1981	42.5 mm (1.7 in)
1982	17.0 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at North Bay, 1887 to 1982. The record is 132.8 mm (5.2 in) in 1972, marked on the chart; the median year is 61.3 mm (2.4 in).

Wettest five days (Rx5day) at North Bay by year
Year	Wettest five days (Rx5day)
1887	22.9 mm (0.9 in)
1888	n/a
1889	n/a
1890	38.0 mm (1.5 in)
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	34.3 mm (1.4 in)
1896	5.1 mm (0.20 in)
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	62.2 mm (2.4 in)
1902	n/a
1903	n/a
1915	39.3 mm (1.5 in)
1916	65.7 mm (2.6 in)
1917	53.2 mm (2.1 in)
1918	54.4 mm (2.1 in)
1919	86.8 mm (3.4 in)
1920	24.1 mm (0.9 in)
1924	61.5 mm (2.4 in)
1925	52.0 mm (2.0 in)
1926	70.6 mm (2.8 in)
1927	44.7 mm (1.8 in)
1928	79.3 mm (3.1 in)
1929	59.9 mm (2.4 in)
1930	52.6 mm (2.1 in)
1931	51.0 mm (2.0 in)
1932	78.4 mm (3.1 in)
1933	53.2 mm (2.1 in)
1934	64.0 mm (2.5 in)
1935	78.7 mm (3.1 in)
1936	31.8 mm (1.3 in)
1937	45.7 mm (1.8 in)
1938	59.9 mm (2.4 in)
1939	46.8 mm (1.8 in)
1940	79.5 mm (3.1 in)
1941	61.0 mm (2.4 in)
1942	45.0 mm (1.8 in)
1943	114.4 mm (4.5 in)
1944	84.3 mm (3.3 in)
1945	49.0 mm (1.9 in)
1946	53.6 mm (2.1 in)
1947	127.2 mm (5.0 in)
1948	110.5 mm (4.4 in)
1949	79.6 mm (3.1 in)
1950	45.4 mm (1.8 in)
1951	67.8 mm (2.7 in)
1952	100.6 mm (4.0 in)
1953	42.4 mm (1.7 in)
1954	91.1 mm (3.6 in)
1955	91.0 mm (3.6 in)
1956	83.3 mm (3.3 in)
1957	92.0 mm (3.6 in)
1958	48.2 mm (1.9 in)
1959	71.3 mm (2.8 in)
1960	69.3 mm (2.7 in)
1961	52.3 mm (2.1 in)
1962	39.7 mm (1.6 in)
1963	70.9 mm (2.8 in)
1964	51.3 mm (2.0 in)
1965	92.9 mm (3.7 in)
1966	57.1 mm (2.2 in)
1967	55.7 mm (2.2 in)
1968	68.9 mm (2.7 in)
1969	69.0 mm (2.7 in)
1970	90.4 mm (3.6 in)
1971	55.6 mm (2.2 in)
1972	132.8 mm (5.2 in)
1973	82.9 mm (3.3 in)
1974	69.6 mm (2.7 in)
1975	98.6 mm (3.9 in)
1976	63.4 mm (2.5 in)
1977	52.6 mm (2.1 in)
1978	54.6 mm (2.1 in)
1979	52.2 mm (2.1 in)
1980	80.8 mm (3.2 in)
1981	96.4 mm (3.8 in)
1982	27.0 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at North Bay, 1887 to 1982. The record is 36 days in 1927, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at North Bay by year
Year	Longest dry spell (CDD)
1887	6 days
1888	n/a
1889	n/a
1890	26 days
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	9 days
1896	10 days
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	17 days
1902	n/a
1903	n/a
1915	14 days
1916	11 days
1917	20 days
1918	20 days
1919	20 days
1920	20 days
1924	12 days
1925	14 days
1926	14 days
1927	36 days
1928	12 days
1929	13 days
1930	15 days
1931	21 days
1932	16 days
1933	16 days
1934	12 days
1935	33 days
1936	26 days
1937	14 days
1938	11 days
1939	18 days
1940	12 days
1941	18 days
1942	15 days
1943	14 days
1944	18 days
1945	23 days
1946	12 days
1947	10 days
1948	18 days
1949	13 days
1950	14 days
1951	11 days
1952	19 days
1953	10 days
1954	17 days
1955	16 days
1956	16 days
1957	16 days
1958	17 days
1959	11 days
1960	13 days
1961	15 days
1962	13 days
1963	16 days
1964	13 days
1965	17 days
1966	14 days
1967	30 days
1968	14 days
1969	23 days
1970	14 days
1971	13 days
1972	18 days
1973	11 days
1974	9 days
1975	14 days
1976	16 days
1977	19 days
1978	15 days
1979	12 days
1980	11 days
1981	13 days
1982	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

55 years with a frost

Across 55 years with a frost, the median last spring frost at North Bay falls on 17 May and the median first autumn frost on 25 September, which leaves a median of 129 days between them.

Fitted over all years, the growing season changes by +1.4 days per decade at this station.

Frost dates and growing season at North Bay
Measure	Median, all years	Earliest period	Recent period (1949 to 1981)	Recent against earliest	Fitted trend
Last spring frost	17 May	n/a	16 May	n/a	-0.1 days per decade
First autumn frost	25 September	n/a	26 September	n/a	+1.3 days per decade
Growing days	129 days	n/a	134 days	n/a	+1.4 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

57 years, 1916 to 1981

A day with at least 42.5 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 96.6 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at North Bay: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	42.5 mm (1.7 in)
5 years	56.0 mm (2.2 in)
10 years	65.3 mm (2.6 in)
25 years	77.5 mm (3.1 in)
50 years	86.9 mm (3.4 in)
100 years	96.6 mm (3.8 in)	Longer than the 57 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, 57 years of values from 1916 to 1981.

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: 83.8 mm (3.3 in) in 1972; 81.3 mm (3.2 in) in 1948; 76.2 mm (3.0 in) in 1935.

Station Changes

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

Download the Data

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