Byron Bay A Weather Records (CA002400595)

Record envelope, standing records and threshold days for Byron Bay A (CA002400595), Nunavut, Canada, with 37 years of record.

Key Facts for Byron Bay A

Byron Bay A (CA002400595) is a weather station in Nunavut, Canada at 68.75 latitude and -109.07 longitude, 92 m (302 ft) above sea level.
The station reports from 1957 to 1993, 37 years of record.
1,464 records set at Byron Bay A still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Nunavut, Canada, 68.75 latitude, -109.07 longitude.
Elevation: 92 m (302 ft).
Period of record: 1957 to 1993, 37 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 Byron Bay A. 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 Byron Bay A, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	-2.4 C (27.7 F)	-50.6 C (-59.1 F)	n/a	n/a
Feb	-8.7 C (16.3 F)	-50.0 C (-58.0 F)	n/a	n/a
Mar	-6.7 C (19.9 F)	-47.2 C (-53.0 F)	n/a	n/a
Apr	4.4 C (39.9 F)	-41.7 C (-43.1 F)	n/a	n/a
May	7.2 C (45.0 F)	-29.1 C (-20.4 F)	n/a	n/a
Jun	20.6 C (69.1 F)	-17.8 C (0.0 F)	n/a	n/a
Jul	23.9 C (75.0 F)	-1.7 C (28.9 F)	n/a	n/a
Aug	22.2 C (72.0 F)	-8.3 C (17.1 F)	n/a	n/a
Sep	16.1 C (61.0 F)	-18.9 C (-2.0 F)	n/a	n/a
Oct	7.8 C (46.0 F)	-36.7 C (-34.1 F)	n/a	n/a
Nov	2.2 C (36.0 F)	-50.6 C (-59.1 F)	n/a	n/a
Dec	0.2 C (32.4 F)	-48.3 C (-54.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Byron Bay A still stand. 1978 holds the most, with 98.

Standing records at Byron Bay A by the year they were set
Year set	Standing records
1957	38
1958	38
1959	39
1960	41
1961	84
1962	47
1963	27
1964	74
1965	32
1966	68
1967	41
1968	69
1969	70
1970	61
1971	46
1972	59
1973	53
1974	57
1975	84
1976	40
1977	35
1978	98
1979	64
1980	34
1981	57
1982	39
1983	69

Wettest Day of Each Month

Jun: 61.0 mm (2.4 in)

The wettest day on record for each calendar month at Byron Bay A. The most was 61.0 mm (2.4 in) on 25 June 1974.

Record daily precipitation for each month at Byron Bay A
Month	Record daily precipitation (mm)	Date
Jan	10.0 mm (0.4 in)	16 January 1980
Feb	5.1 mm (0.20 in)	26 February 1970
Mar	10.0 mm (0.4 in)	22 March 1981
Apr	5.1 mm (0.20 in)	19 April 1962
May	10.2 mm (0.4 in)	30 May 1965
Jun	61.0 mm (2.4 in)	25 June 1974
Jul	30.5 mm (1.2 in)	27 July 1959
Aug	21.8 mm (0.9 in)	23 August 1971
Sep	19.8 mm (0.8 in)	10 September 1966
Oct	15.5 mm (0.6 in)	22 October 1972
Nov	5.2 mm (0.20 in)	15 November 1979
Dec	15.0 mm (0.6 in)	26 December 1979

Period of Record Coverage

1957 to 1983

27 years of record at Byron Bay A, 1957 to 1983. 3 years have data for under 90 percent of days and are left out of rankings: 1957, 1958, 1960.

Days with data per year at Byron Bay A
Year	Days with data	Share of year	Complete
1957	187	51%	No
1958	258	71%	No
1959	338	93%	Yes
1960	322	88%	No
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	363	99%	Yes
1978	364	100%	Yes
1979	360	99%	Yes
1980	363	99%	Yes
1981	362	99%	Yes
1982	337	92%	Yes
1983	330	90%	Yes

Latest Records

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

Climate Trend

21 complete years, 1961 to 1981

One stripe for each of 21 complete years at Byron Bay A, 1961 to 1981. Blue stripes are years cooler than the station's own mean of -14.1 C (6.6 F); red stripes are warmer. The coolest year was 1972, at -16.5 C (2.2 F), and the warmest was 1981, at -12.1 C (10.2 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at Byron Bay A as warming stripes, 1961 to 1981
Year	Annual mean temperature	Difference from the station mean
1961	-16.2 C	-2.11 C
1962	-14.0 C	+0.09 C
1963	-13.9 C	+0.17 C
1964	-15.0 C	-0.93 C
1965	-14.8 C	-0.71 C
1966	-14.1 C	-0.02 C
1967	-15.0 C	-0.89 C
1968	-13.4 C	+0.71 C
1969	-12.9 C	+1.15 C
1970	-14.0 C	+0.06 C
1971	-13.4 C	+0.67 C
1972	-16.5 C	-2.47 C
1973	-12.3 C	+1.80 C
1974	-15.4 C	-1.36 C
1975	-13.2 C	+0.90 C
1976	-13.9 C	+0.15 C
1977	-12.7 C	+1.39 C
1978	-14.7 C	-0.58 C
1979	-14.6 C	-0.48 C
1980	-13.7 C	+0.42 C
1981	-12.1 C	+1.96 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

1957 to 1983

Yearly extremes at Byron Bay A: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	23.9 C (75.0 F)	1966	20.6 C (69.1 F)	27
Coldest night (TNn)	-50.6 C (-59.1 F)	1970	-46.1 C (-51.0 F)	27
Wettest day (Rx1day)	61.0 mm (2.4 in)	1974	15.0 mm (0.6 in)	27
Wettest five days (Rx5day)	63.7 mm (2.5 in)	1966	21.1 mm (0.8 in)	27
Longest dry spell (CDD)	143 days	1982	70 days	27

Hottest day (TXx)

The hottest day of the year at Byron Bay A, 1957 to 1983. The record is 23.9 C (75.0 F) in 1966, marked on the chart; the median year is 20.6 C (69.1 F).

Hottest day (TXx) at Byron Bay A by year
Year	Hottest day (TXx)
1957	20.0 C (68.0 F)
1958	18.3 C (64.9 F)
1959	16.7 C (62.1 F)
1960	20.6 C (69.1 F)
1961	21.7 C (71.1 F)
1962	22.8 C (73.0 F)
1963	18.3 C (64.9 F)
1964	22.8 C (73.0 F)
1965	20.6 C (69.1 F)
1966	23.9 C (75.0 F)
1967	19.4 C (66.9 F)
1968	18.9 C (66.0 F)
1969	21.7 C (71.1 F)
1970	21.1 C (70.0 F)
1971	20.6 C (69.1 F)
1972	20.6 C (69.1 F)
1973	23.9 C (75.0 F)
1974	23.9 C (75.0 F)
1975	20.6 C (69.1 F)
1976	22.2 C (72.0 F)
1977	19.6 C (67.3 F)
1978	16.7 C (62.1 F)
1979	19.7 C (67.5 F)
1980	19.1 C (66.4 F)
1981	18.5 C (65.3 F)
1982	20.2 C (68.4 F)
1983	21.8 C (71.2 F)

Coldest night (TNn)

The coldest night of the year at Byron Bay A, 1957 to 1983. The record is -50.6 C (-59.1 F) in 1970, marked on the chart; the median year is -46.1 C (-51.0 F).

Coldest night (TNn) at Byron Bay A by year
Year	Coldest night (TNn)
1957	-44.4 C (-47.9 F)
1958	-46.1 C (-51.0 F)
1959	-42.2 C (-44.0 F)
1960	-46.1 C (-51.0 F)
1961	-46.1 C (-51.0 F)
1962	-48.9 C (-56.0 F)
1963	-43.3 C (-45.9 F)
1964	-47.8 C (-54.0 F)
1965	-45.6 C (-50.1 F)
1966	-46.7 C (-52.1 F)
1967	-46.7 C (-52.1 F)
1968	-50.0 C (-58.0 F)
1969	-45.0 C (-49.0 F)
1970	-50.6 C (-59.1 F)
1971	-47.2 C (-53.0 F)
1972	-47.2 C (-53.0 F)
1973	-44.4 C (-47.9 F)
1974	-46.7 C (-52.1 F)
1975	-50.6 C (-59.1 F)
1976	-46.1 C (-51.0 F)
1977	-46.0 C (-50.8 F)
1978	-42.0 C (-43.6 F)
1979	-49.3 C (-56.7 F)
1980	-47.2 C (-53.0 F)
1981	-44.1 C (-47.4 F)
1982	-46.1 C (-51.0 F)
1983	-43.0 C (-45.4 F)

Wettest day (Rx1day)

The wettest day of the year at Byron Bay A, 1957 to 1983. The record is 61.0 mm (2.4 in) in 1974, marked on the chart; the median year is 15.0 mm (0.6 in).

Wettest day (Rx1day) at Byron Bay A by year
Year	Wettest day (Rx1day)
1957	12.7 mm (0.5 in)
1958	13.5 mm (0.5 in)
1959	30.5 mm (1.2 in)
1960	17.8 mm (0.7 in)
1961	9.9 mm (0.39 in)
1962	8.1 mm (0.32 in)
1963	17.5 mm (0.7 in)
1964	7.9 mm (0.31 in)
1965	10.2 mm (0.4 in)
1966	30.2 mm (1.2 in)
1967	8.9 mm (0.35 in)
1968	9.1 mm (0.36 in)
1969	13.7 mm (0.5 in)
1970	11.4 mm (0.4 in)
1971	21.8 mm (0.9 in)
1972	15.5 mm (0.6 in)
1973	15.2 mm (0.6 in)
1974	61.0 mm (2.4 in)
1975	10.7 mm (0.4 in)
1976	29.2 mm (1.1 in)
1977	20.9 mm (0.8 in)
1978	6.4 mm (0.25 in)
1979	15.0 mm (0.6 in)
1980	25.8 mm (1.0 in)
1981	23.6 mm (0.9 in)
1982	7.8 mm (0.31 in)
1983	19.8 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Byron Bay A, 1957 to 1983. The record is 63.7 mm (2.5 in) in 1966, marked on the chart; the median year is 21.1 mm (0.8 in).

Wettest five days (Rx5day) at Byron Bay A by year
Year	Wettest five days (Rx5day)
1957	25.7 mm (1.0 in)
1958	13.5 mm (0.5 in)
1959	31.6 mm (1.2 in)
1960	30.2 mm (1.2 in)
1961	11.2 mm (0.4 in)
1962	13.4 mm (0.5 in)
1963	37.4 mm (1.5 in)
1964	13.3 mm (0.5 in)
1965	11.5 mm (0.5 in)
1966	63.7 mm (2.5 in)
1967	16.2 mm (0.6 in)
1968	16.1 mm (0.6 in)
1969	18.5 mm (0.7 in)
1970	13.4 mm (0.5 in)
1971	22.6 mm (0.9 in)
1972	21.1 mm (0.8 in)
1973	28.9 mm (1.1 in)
1974	63.1 mm (2.5 in)
1975	16.0 mm (0.6 in)
1976	36.1 mm (1.4 in)
1977	27.4 mm (1.1 in)
1978	14.1 mm (0.6 in)
1979	19.0 mm (0.7 in)
1980	29.3 mm (1.2 in)
1981	29.2 mm (1.1 in)
1982	11.0 mm (0.4 in)
1983	26.0 mm (1.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Byron Bay A, 1957 to 1983. The record is 143 days in 1982, marked on the chart; the median year is 70 days.

Longest dry spell (CDD) at Byron Bay A by year
Year	Longest dry spell (CDD)
1957	58 days
1958	69 days
1959	92 days
1960	99 days
1961	109 days
1962	38 days
1963	68 days
1964	58 days
1965	61 days
1966	70 days
1967	134 days
1968	110 days
1969	86 days
1970	55 days
1971	55 days
1972	72 days
1973	65 days
1974	74 days
1975	102 days
1976	97 days
1977	121 days
1978	73 days
1979	67 days
1980	57 days
1981	37 days
1982	143 days
1983	51 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

21 years with a frost

Across 21 years with a frost, the median last spring frost at Byron Bay A falls on 26 June and the median first autumn frost on 8 August, which leaves a median of 46 days between them.

Frost dates and growing season at Byron Bay A
Measure	Median, all years	Earliest period	Recent period (1961 to 1981)	Recent against earliest	Fitted trend
Last spring frost	26 June	n/a	26 June	n/a	n/a
First autumn frost	8 August	n/a	8 August	n/a	n/a
Growing days	46 days	n/a	46 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 Byron Bay A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Byron Bay A 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).