Nanoose Bay Weather Records (CA001025375)

Record envelope, standing records and threshold days for Nanoose Bay (CA001025375), British Columbia, Canada, with 78 years of record.

Key Facts for Nanoose Bay

Nanoose Bay (CA001025375) is a weather station in British Columbia, Canada at 49.28 latitude and -124.18 longitude, 82 m (269 ft) above sea level.
The station reports from 1912 to 1989, 78 years of record.
1,464 records set at Nanoose Bay still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: British Columbia, Canada, 49.28 latitude, -124.18 longitude.
Elevation: 82 m (269 ft).
Period of record: 1912 to 1989, 78 years.
Eligible elements: none yet.

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 Nanoose 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 Nanoose Bay, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	13.3 C (55.9 F)	-13.9 C (7.0 F)	n/a	n/a
Feb	15.0 C (59.0 F)	-11.1 C (12.0 F)	n/a	n/a
Mar	18.9 C (66.0 F)	-9.4 C (15.1 F)	n/a	n/a
Apr	23.9 C (75.0 F)	-5.0 C (23.0 F)	n/a	n/a
May	28.3 C (82.9 F)	-1.1 C (30.0 F)	n/a	n/a
Jun	31.7 C (89.1 F)	1.1 C (34.0 F)	n/a	n/a
Jul	32.8 C (91.0 F)	3.9 C (39.0 F)	n/a	n/a
Aug	35.6 C (96.1 F)	4.4 C (39.9 F)	n/a	n/a
Sep	28.3 C (82.9 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	22.8 C (73.0 F)	-7.2 C (19.0 F)	n/a	n/a
Nov	16.1 C (61.0 F)	-6.1 C (21.0 F)	n/a	n/a
Dec	14.4 C (57.9 F)	-13.9 C (7.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Nanoose Bay still stand. 1916 holds the most, with 94.

Standing records at Nanoose Bay by the year they were set
Year set	Standing records
1912	23
1913	76
1914	68
1915	58
1916	94
1917	49
1918	68
1919	73
1920	69
1921	61
1922	56
1923	46
1924	60
1925	36
1926	60
1927	34
1928	34
1929	39
1930	41
1931	49
1932	35
1933	42
1934	43
1935	52
1936	56
1937	46
1938	26
1939	41
1940	26
1960	3

Wettest Day of Each Month

Jan: 71.4 mm (2.8 in)

The wettest day on record for each calendar month at Nanoose Bay. The most was 71.4 mm (2.8 in) on 21 January 1935.

Record daily precipitation for each month at Nanoose Bay
Month	Record daily precipitation (mm)	Date
Jan	71.4 mm (2.8 in)	21 January 1935
Feb	43.9 mm (1.7 in)	13 February 1940
Mar	32.3 mm (1.3 in)	16 March 1938
Apr	34.3 mm (1.4 in)	13 April 1937
May	38.1 mm (1.5 in)	20 May 1912
Jun	31.8 mm (1.3 in)	26 June 1914
Jul	33.0 mm (1.3 in)	31 July 1935
Aug	32.8 mm (1.3 in)	27 August 1920
Sep	38.9 mm (1.5 in)	5 September 1933
Oct	42.4 mm (1.7 in)	21 October 1934
Nov	39.6 mm (1.6 in)	13 November 1937
Dec	45.0 mm (1.8 in)	3 December 1918

Period of Record Coverage

1912 to 1960

30 years of record at Nanoose Bay, 1912 to 1960. 3 years have data for under 90 percent of days and are left out of rankings: 1912, 1940, 1960.

Days with data per year at Nanoose Bay
Year	Days with data	Share of year	Complete
1912	226	62%	No
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	364	100%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	244	67%	No
1960	30	8%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

25 complete years, 1913 to 1939

One stripe for each of 25 complete years at Nanoose Bay, 1913 to 1939. Blue stripes are years cooler than the station's own mean of 9.1 C (48.4 F); red stripes are warmer. The coolest year was 1933, at 8.3 C (46.9 F), and the warmest was 1926, at 10.0 C (50.0 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Nanoose Bay as warming stripes, 1913 to 1939
Year	Annual mean temperature	Difference from the station mean
1913	8.4 C	-0.73 C
1914	9.3 C	+0.21 C
1915	9.9 C	+0.81 C
1918	9.5 C	+0.41 C
1919	8.6 C	-0.49 C
1920	8.8 C	-0.32 C
1921	8.5 C	-0.61 C
1922	8.6 C	-0.52 C
1923	9.2 C	+0.12 C
1924	9.4 C	+0.28 C
1925	9.8 C	+0.69 C
1926	10.0 C	+0.91 C
1927	8.6 C	-0.54 C
1928	9.4 C	+0.34 C
1929	8.7 C	-0.36 C
1930	8.8 C	-0.28 C
1931	9.1 C	+0.03 C
1932	9.1 C	+0.01 C
1933	8.3 C	-0.81 C
1934	9.8 C	+0.73 C
1935	8.9 C	-0.19 C
1936	8.8 C	-0.26 C
1937	8.6 C	-0.47 C
1938	9.4 C	+0.32 C
1939	9.7 C	+0.64 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1912 to 1960

Yearly extremes at Nanoose Bay: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.6 C (96.1 F)	1939	30.6 C (87.1 F)	30
Coldest night (TNn)	-13.9 C (7.0 F)	1919	-9.7 C (14.5 F)	30
Wettest day (Rx1day)	71.4 mm (2.8 in)	1935	37.6 mm (1.5 in)	30
Wettest five days (Rx5day)	147.9 mm (5.8 in)	1939	73.6 mm (2.9 in)	30
Longest dry spell (CDD)	44 days	1922	30 days	30

Hottest day (TXx)

The hottest day of the year at Nanoose Bay, 1912 to 1960. The record is 35.6 C (96.1 F) in 1939, marked on the chart; the median year is 30.6 C (87.1 F).

Hottest day (TXx) at Nanoose Bay by year
Year	Hottest day (TXx)
1912	29.4 C (84.9 F)
1913	32.2 C (90.0 F)
1914	29.4 C (84.9 F)
1915	33.9 C (93.0 F)
1916	32.2 C (90.0 F)
1917	30.0 C (86.0 F)
1918	31.7 C (89.1 F)
1919	28.9 C (84.0 F)
1920	32.8 C (91.0 F)
1921	28.9 C (84.0 F)
1922	31.7 C (89.1 F)
1923	31.1 C (88.0 F)
1924	32.2 C (90.0 F)
1925	31.7 C (89.1 F)
1926	30.6 C (87.1 F)
1927	31.1 C (88.0 F)
1928	30.6 C (87.1 F)
1929	27.8 C (82.0 F)
1930	28.9 C (84.0 F)
1931	30.0 C (86.0 F)
1932	31.1 C (88.0 F)
1933	30.0 C (86.0 F)
1934	29.4 C (84.9 F)
1935	30.6 C (87.1 F)
1936	27.8 C (82.0 F)
1937	30.0 C (86.0 F)
1938	32.8 C (91.0 F)
1939	35.6 C (96.1 F)
1940	32.2 C (90.0 F)
1960	23.9 C (75.0 F)

Coldest night (TNn)

The coldest night of the year at Nanoose Bay, 1912 to 1960. The record is -13.9 C (7.0 F) in 1919, marked on the chart; the median year is -9.7 C (14.5 F).

Coldest night (TNn) at Nanoose Bay by year
Year	Coldest night (TNn)
1912	-2.8 C (27.0 F)
1913	-9.4 C (15.1 F)
1914	-6.7 C (19.9 F)
1915	-6.1 C (21.0 F)
1916	-13.3 C (8.1 F)
1917	-5.6 C (21.9 F)
1918	-7.2 C (19.0 F)
1919	-13.9 C (7.0 F)
1920	-7.2 C (19.0 F)
1921	-11.7 C (10.9 F)
1922	-11.7 C (10.9 F)
1923	-11.1 C (12.0 F)
1924	-10.6 C (12.9 F)
1925	-3.9 C (25.0 F)
1926	-10.0 C (14.0 F)
1927	-11.1 C (12.0 F)
1928	-6.1 C (21.0 F)
1929	-11.1 C (12.0 F)
1930	-11.7 C (10.9 F)
1931	-5.6 C (21.9 F)
1932	-11.1 C (12.0 F)
1933	-11.1 C (12.0 F)
1934	-3.3 C (26.1 F)
1935	-13.9 C (7.0 F)
1936	-11.1 C (12.0 F)
1937	-12.8 C (9.0 F)
1938	-5.6 C (21.9 F)
1939	-5.6 C (21.9 F)
1940	-3.9 C (25.0 F)
1960	-2.2 C (28.0 F)

Wettest day (Rx1day)

The wettest day of the year at Nanoose Bay, 1912 to 1960. The record is 71.4 mm (2.8 in) in 1935, marked on the chart; the median year is 37.6 mm (1.5 in).

Wettest day (Rx1day) at Nanoose Bay by year
Year	Wettest day (Rx1day)
1912	38.1 mm (1.5 in)
1913	31.8 mm (1.3 in)
1914	48.3 mm (1.9 in)
1915	22.1 mm (0.9 in)
1916	33.5 mm (1.3 in)
1917	24.4 mm (1.0 in)
1918	45.0 mm (1.8 in)
1919	37.1 mm (1.5 in)
1920	32.8 mm (1.3 in)
1921	41.4 mm (1.6 in)
1922	34.5 mm (1.4 in)
1923	38.1 mm (1.5 in)
1924	29.0 mm (1.1 in)
1925	25.4 mm (1.0 in)
1926	31.2 mm (1.2 in)
1927	28.4 mm (1.1 in)
1928	25.4 mm (1.0 in)
1929	38.4 mm (1.5 in)
1930	38.9 mm (1.5 in)
1931	34.8 mm (1.4 in)
1932	40.4 mm (1.6 in)
1933	38.9 mm (1.5 in)
1934	42.4 mm (1.7 in)
1935	71.4 mm (2.8 in)
1936	32.3 mm (1.3 in)
1937	39.6 mm (1.6 in)
1938	41.4 mm (1.6 in)
1939	51.6 mm (2.0 in)
1940	43.9 mm (1.7 in)
1960	16.3 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Nanoose Bay, 1912 to 1960. The record is 147.9 mm (5.8 in) in 1939, marked on the chart; the median year is 73.6 mm (2.9 in).

Wettest five days (Rx5day) at Nanoose Bay by year
Year	Wettest five days (Rx5day)
1912	67.8 mm (2.7 in)
1913	73.7 mm (2.9 in)
1914	100.6 mm (4.0 in)
1915	62.2 mm (2.4 in)
1916	63.1 mm (2.5 in)
1917	66.3 mm (2.6 in)
1918	77.5 mm (3.1 in)
1919	70.9 mm (2.8 in)
1920	65.9 mm (2.6 in)
1921	107.6 mm (4.2 in)
1922	71.1 mm (2.8 in)
1923	92.0 mm (3.6 in)
1924	67.3 mm (2.6 in)
1925	52.8 mm (2.1 in)
1926	73.4 mm (2.9 in)
1927	82.8 mm (3.3 in)
1928	63.3 mm (2.5 in)
1929	71.7 mm (2.8 in)
1930	52.4 mm (2.1 in)
1931	68.9 mm (2.7 in)
1932	77.2 mm (3.0 in)
1933	89.5 mm (3.5 in)
1934	80.7 mm (3.2 in)
1935	128.6 mm (5.1 in)
1936	80.0 mm (3.1 in)
1937	89.0 mm (3.5 in)
1938	95.6 mm (3.8 in)
1939	147.9 mm (5.8 in)
1940	78.9 mm (3.1 in)
1960	60.5 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Nanoose Bay, 1912 to 1960. The record is 44 days in 1922, marked on the chart; the median year is 30 days.

Longest dry spell (CDD) at Nanoose Bay by year
Year	Longest dry spell (CDD)
1912	21 days
1913	29 days
1914	26 days
1915	27 days
1916	37 days
1917	23 days
1918	39 days
1919	38 days
1920	30 days
1921	15 days
1922	44 days
1923	31 days
1924	32 days
1925	37 days
1926	32 days
1927	30 days
1928	28 days
1929	23 days
1930	22 days
1931	43 days
1932	29 days
1933	24 days
1934	31 days
1935	25 days
1936	38 days
1937	26 days
1938	27 days
1939	39 days
1940	33 days
1960	7 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

25 years with a frost

Across 25 years with a frost, the median last spring frost at Nanoose Bay falls on 22 April and the median first autumn frost on 24 October, which leaves a median of 185 days between them.

Fitted over all years, the growing season changes by +0.6 days per decade at this station.

Frost dates and growing season at Nanoose Bay
Measure	Median, all years	Earliest period	Recent period (1913 to 1939)	Recent against earliest	Fitted trend
Last spring frost	22 April	n/a	22 April	n/a	-3.7 days per decade
First autumn frost	24 October	n/a	24 October	n/a	-3.1 days per decade
Growing days	185 days	n/a	185 days	n/a	+0.6 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.

Download the Data

Data for Nanoose Bay standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nanoose 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 2026-10-14 (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).