Halifax Citadel Weather Records (CA008202220)

Record envelope, standing records and threshold days for Halifax Citadel (CA008202220), Nova Scotia, Canada, with 70 years of record.

Key Facts for Halifax Citadel

Halifax Citadel (CA008202220) is a weather station in Nova Scotia, Canada at 44.65 latitude and -63.58 longitude, 70 m (230 ft) above sea level.
The station reports from 1933 to 2002, 70 years of record.
1,464 records set at Halifax Citadel still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Nova Scotia, Canada, 44.65 latitude, -63.58 longitude.
Elevation: 70 m (230 ft).
Period of record: 1933 to 2002, 70 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 Halifax Citadel. 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 Halifax Citadel, 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)	-26.1 C (-15.0 F)	n/a	n/a
Feb	12.0 C (53.6 F)	-24.4 C (-11.9 F)	n/a	n/a
Mar	16.1 C (61.0 F)	-20.0 C (-4.0 F)	n/a	n/a
Apr	26.1 C (79.0 F)	-8.0 C (17.6 F)	n/a	n/a
May	33.3 C (91.9 F)	-2.8 C (27.0 F)	n/a	n/a
Jun	33.0 C (91.4 F)	1.7 C (35.1 F)	n/a	n/a
Jul	31.7 C (89.1 F)	7.2 C (45.0 F)	n/a	n/a
Aug	33.9 C (93.0 F)	6.1 C (43.0 F)	n/a	n/a
Sep	32.2 C (90.0 F)	1.0 C (33.8 F)	n/a	n/a
Oct	24.0 C (75.2 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-13.9 C (7.0 F)	n/a	n/a
Dec	16.7 C (62.1 F)	-23.3 C (-9.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Halifax Citadel still stand. 1950 holds the most, with 75.

Standing records at Halifax Citadel by the year they were set
Year set	Standing records
1933	43
1934	72
1935	56
1936	56
1937	58
1938	58
1939	57
1940	22
1948	42
1949	46
1950	75
1951	16
1964	40
1965	42
1966	41
1967	33
1968	1
1969	41
1970	29
1971	39
1972	50
1973	51
1974	56
1975	43
1976	61
1977	42
1978	34
1979	73
1980	25
1981	61
1982	47
1983	54

Wettest Day of Each Month

Aug: 118.1 mm (4.6 in)

The wettest day on record for each calendar month at Halifax Citadel. The most was 118.1 mm (4.6 in) on 15 August 1971.

Record daily precipitation for each month at Halifax Citadel
Month	Record daily precipitation (mm)	Date
Jan	93.7 mm (3.7 in)	18 January 1978
Feb	59.2 mm (2.3 in)	25 February 1965
Mar	82.6 mm (3.3 in)	23 March 1972
Apr	72.2 mm (2.8 in)	28 April 1982
May	72.1 mm (2.8 in)	17 May 1971
Jun	65.8 mm (2.6 in)	10 June 1972
Jul	93.8 mm (3.7 in)	20 July 1982
Aug	118.1 mm (4.6 in)	15 August 1971
Sep	96.3 mm (3.8 in)	19 September 1936
Oct	81.3 mm (3.2 in)	4 October 1970
Nov	99.1 mm (3.9 in)	9 November 1972
Dec	95.3 mm (3.8 in)	10 December 1975

Period of Record Coverage

1933 to 1983

32 years of record at Halifax Citadel, 1933 to 1983. 8 years have data for under 90 percent of days and are left out of rankings: 1933, 1940, 1948, 1949, 1951, 1964, 1967, 1968.

Days with data per year at Halifax Citadel
Year	Days with data	Share of year	Complete
1933	153	42%	No
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	213	58%	No
1948	265	72%	No
1949	212	58%	No
1950	365	100%	Yes
1951	94	26%	No
1964	306	84%	No
1965	365	100%	Yes
1966	365	100%	Yes
1967	268	73%	No
1968	12	3%	No
1969	365	100%	Yes
1970	364	100%	Yes
1971	364	100%	Yes
1972	365	100%	Yes
1973	363	99%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	363	99%	Yes
1979	362	99%	Yes
1980	362	99%	Yes
1981	360	99%	Yes
1982	351	96%	Yes
1983	362	99%	Yes

Latest Records

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

Climate Trend

24 complete years, 1934 to 1983

One stripe for each of 24 complete years at Halifax Citadel, 1934 to 1983. Blue stripes are years cooler than the station's own mean of 6.9 C (44.5 F); red stripes are warmer. The coolest year was 1972, at 6.1 C (42.9 F), and the warmest was 1969, at 8.1 C (46.6 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Halifax Citadel as warming stripes, 1934 to 1983
Year	Annual mean temperature	Difference from the station mean
1934	6.3 C	-0.60 C
1935	6.5 C	-0.47 C
1936	6.8 C	-0.11 C
1937	7.7 C	+0.76 C
1938	7.4 C	+0.45 C
1939	6.8 C	-0.11 C
1950	6.9 C	-0.02 C
1965	6.2 C	-0.71 C
1966	7.4 C	+0.46 C
1969	8.1 C	+1.18 C
1970	6.5 C	-0.47 C
1971	6.9 C	-0.07 C
1972	6.1 C	-0.84 C
1973	6.9 C	-0.02 C
1974	6.3 C	-0.67 C
1975	6.6 C	-0.28 C
1976	7.0 C	+0.03 C
1977	7.1 C	+0.20 C
1978	6.5 C	-0.43 C
1979	7.3 C	+0.42 C
1980	6.4 C	-0.54 C
1981	7.7 C	+0.82 C
1982	6.9 C	-0.04 C
1983	7.9 C	+1.00 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

1933 to 1983

Yearly extremes at Halifax Citadel: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.9 C (93.0 F)	1935	30.0 C (86.0 F)	32
Coldest night (TNn)	-26.1 C (-15.0 F)	1951	-20.0 C (-4.0 F)	32
Wettest day (Rx1day)	118.1 mm (4.6 in)	1971	68.8 mm (2.7 in)	32
Wettest five days (Rx5day)	216.4 mm (8.5 in)	1933	103.2 mm (4.1 in)	32
Longest dry spell (CDD)	24 days	1975	14 days	32

Hottest day (TXx)

The hottest day of the year at Halifax Citadel, 1933 to 1983. The record is 33.9 C (93.0 F) in 1935, marked on the chart; the median year is 30.0 C (86.0 F).

Hottest day (TXx) at Halifax Citadel by year
Year	Hottest day (TXx)
1933	28.9 C (84.0 F)
1934	28.9 C (84.0 F)
1935	33.9 C (93.0 F)
1936	27.8 C (82.0 F)
1937	32.2 C (90.0 F)
1938	30.6 C (87.1 F)
1939	30.6 C (87.1 F)
1940	28.9 C (84.0 F)
1948	30.0 C (86.0 F)
1949	30.6 C (87.1 F)
1950	30.0 C (86.0 F)
1951	12.2 C (54.0 F)
1964	28.9 C (84.0 F)
1965	28.9 C (84.0 F)
1966	27.8 C (82.0 F)
1967	28.3 C (82.9 F)
1968	10.6 C (51.1 F)
1969	32.2 C (90.0 F)
1970	30.0 C (86.0 F)
1971	30.0 C (86.0 F)
1972	27.8 C (82.0 F)
1973	31.7 C (89.1 F)
1974	28.3 C (82.9 F)
1975	31.7 C (89.1 F)
1976	32.8 C (91.0 F)
1977	33.3 C (91.9 F)
1978	30.6 C (87.1 F)
1979	31.7 C (89.1 F)
1980	30.5 C (86.9 F)
1981	30.0 C (86.0 F)
1982	28.5 C (83.3 F)
1983	33.0 C (91.4 F)

Coldest night (TNn)

The coldest night of the year at Halifax Citadel, 1933 to 1983. The record is -26.1 C (-15.0 F) in 1951, marked on the chart; the median year is -20.0 C (-4.0 F).

Coldest night (TNn) at Halifax Citadel by year
Year	Coldest night (TNn)
1933	-23.3 C (-9.9 F)
1934	-24.4 C (-11.9 F)
1935	-23.3 C (-9.9 F)
1936	-18.3 C (-0.9 F)
1937	-15.6 C (3.9 F)
1938	-20.6 C (-5.1 F)
1939	-15.0 C (5.0 F)
1940	-15.0 C (5.0 F)
1948	-10.6 C (12.9 F)
1949	-17.2 C (1.0 F)
1950	-22.2 C (-8.0 F)
1951	-26.1 C (-15.0 F)
1964	-14.4 C (6.1 F)
1965	-22.2 C (-8.0 F)
1966	-22.2 C (-8.0 F)
1967	-23.9 C (-11.0 F)
1968	-16.1 C (3.0 F)
1969	-16.1 C (3.0 F)
1970	-17.8 C (0.0 F)
1971	-17.8 C (0.0 F)
1972	-17.8 C (0.0 F)
1973	-21.7 C (-7.1 F)
1974	-22.2 C (-8.0 F)
1975	-22.2 C (-8.0 F)
1976	-19.4 C (-2.9 F)
1977	-18.3 C (-0.9 F)
1978	-17.2 C (1.0 F)
1979	-22.2 C (-8.0 F)
1980	-22.0 C (-7.6 F)
1981	-22.0 C (-7.6 F)
1982	-23.0 C (-9.4 F)
1983	-18.5 C (-1.3 F)

Wettest day (Rx1day)

The wettest day of the year at Halifax Citadel, 1933 to 1983. The record is 118.1 mm (4.6 in) in 1971, marked on the chart; the median year is 68.8 mm (2.7 in).

Wettest day (Rx1day) at Halifax Citadel by year
Year	Wettest day (Rx1day)
1933	75.2 mm (3.0 in)
1934	72.6 mm (2.9 in)
1935	75.7 mm (3.0 in)
1936	96.3 mm (3.8 in)
1937	63.2 mm (2.5 in)
1938	73.2 mm (2.9 in)
1939	45.5 mm (1.8 in)
1940	42.7 mm (1.7 in)
1948	64.5 mm (2.5 in)
1949	37.6 mm (1.5 in)
1950	53.3 mm (2.1 in)
1951	33.3 mm (1.3 in)
1964	75.4 mm (3.0 in)
1965	61.0 mm (2.4 in)
1966	41.1 mm (1.6 in)
1967	50.8 mm (2.0 in)
1968	44.5 mm (1.8 in)
1969	52.6 mm (2.1 in)
1970	81.3 mm (3.2 in)
1971	118.1 mm (4.6 in)
1972	99.1 mm (3.9 in)
1973	64.8 mm (2.6 in)
1974	58.4 mm (2.3 in)
1975	95.3 mm (3.8 in)
1976	72.9 mm (2.9 in)
1977	66.5 mm (2.6 in)
1978	93.7 mm (3.7 in)
1979	71.1 mm (2.8 in)
1980	52.0 mm (2.0 in)
1981	82.0 mm (3.2 in)
1982	93.8 mm (3.7 in)
1983	99.6 mm (3.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Halifax Citadel, 1933 to 1983. The record is 216.4 mm (8.5 in) in 1933, marked on the chart; the median year is 103.2 mm (4.1 in).

Wettest five days (Rx5day) at Halifax Citadel by year
Year	Wettest five days (Rx5day)
1933	216.4 mm (8.5 in)
1934	157.9 mm (6.2 in)
1935	98.3 mm (3.9 in)
1936	137.9 mm (5.4 in)
1937	110.7 mm (4.4 in)
1938	102.6 mm (4.0 in)
1939	96.9 mm (3.8 in)
1940	86.9 mm (3.4 in)
1948	121.2 mm (4.8 in)
1949	65.5 mm (2.6 in)
1950	91.2 mm (3.6 in)
1951	59.7 mm (2.4 in)
1964	115.1 mm (4.5 in)
1965	91.7 mm (3.6 in)
1966	67.0 mm (2.6 in)
1967	88.9 mm (3.5 in)
1968	45.8 mm (1.8 in)
1969	103.8 mm (4.1 in)
1970	94.4 mm (3.7 in)
1971	197.3 mm (7.8 in)
1972	126.3 mm (5.0 in)
1973	107.0 mm (4.2 in)
1974	78.8 mm (3.1 in)
1975	108.7 mm (4.3 in)
1976	102.6 mm (4.0 in)
1977	96.0 mm (3.8 in)
1978	182.1 mm (7.2 in)
1979	143.7 mm (5.7 in)
1980	77.4 mm (3.0 in)
1981	112.6 mm (4.4 in)
1982	142.2 mm (5.6 in)
1983	117.3 mm (4.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Halifax Citadel, 1933 to 1983. The record is 24 days in 1975, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Halifax Citadel by year
Year	Longest dry spell (CDD)
1933	8 days
1934	16 days
1935	11 days
1936	8 days
1937	13 days
1938	17 days
1939	15 days
1940	12 days
1948	10 days
1949	18 days
1950	15 days
1951	8 days
1964	15 days
1965	15 days
1966	18 days
1967	13 days
1968	3 days
1969	13 days
1970	12 days
1971	18 days
1972	11 days
1973	13 days
1974	11 days
1975	24 days
1976	14 days
1977	13 days
1978	14 days
1979	19 days
1980	23 days
1981	19 days
1982	17 days
1983	15 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

24 years with a frost

Across 24 years with a frost, the median last spring frost at Halifax Citadel falls on 1 May and the median first autumn frost on 20 October, which leaves a median of 174 days between them.

Frost dates and growing season at Halifax Citadel
Measure	Median, all years	Earliest period	Recent period (1934 to 1983)	Recent against earliest	Fitted trend
Last spring frost	1 May	n/a	1 May	n/a	n/a
First autumn frost	20 October	n/a	20 October	n/a	n/a
Growing days	174 days	n/a	174 days	n/a	n/a

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 Halifax Citadel standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Halifax Citadel 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 2026-10-16 (16 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).