Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Coral Harbour 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 Coral Harbour A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
-0.6 C (30.9 F)
-52.8 C (-63.0 F)
n/a
n/a
Feb
-1.1 C (30.0 F)
-50.6 C (-59.1 F)
n/a
n/a
Mar
0.0 C (32.0 F)
-49.4 C (-56.9 F)
n/a
n/a
Apr
5.0 C (41.0 F)
-39.4 C (-38.9 F)
n/a
n/a
May
9.4 C (48.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Jun
23.3 C (73.9 F)
-15.6 C (3.9 F)
n/a
n/a
Jul
25.0 C (77.0 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
26.1 C (79.0 F)
-3.3 C (26.1 F)
n/a
n/a
Sep
17.2 C (63.0 F)
-17.2 C (1.0 F)
n/a
n/a
Oct
7.6 C (45.7 F)
-34.4 C (-29.9 F)
n/a
n/a
Nov
1.1 C (34.0 F)
-40.6 C (-41.1 F)
n/a
n/a
Dec
1.1 C (34.0 F)
-48.9 C (-56.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Coral Harbour A still stand. 1972 holds the most, with 74.
Standing records at Coral Harbour A by the year they were set
Year set
Standing records
1933
4
1934
30
1935
24
1945
33
1946
41
1947
53
1948
52
1949
26
1950
64
1951
18
1952
32
1953
48
1954
42
1955
50
1956
39
1957
34
1958
34
1959
32
1960
32
1961
23
1962
24
1963
38
1964
47
1965
36
1966
41
1967
21
1968
30
1969
37
1970
24
1971
17
1972
74
1973
19
1974
30
1975
54
1976
17
1977
39
1978
43
1979
37
1980
31
1981
40
1982
29
1983
25
All-Time Record Progression
1 new records
1 all-time records were set at Coral Harbour A between 17 January 1975 and 17 January 1975. Each dot is a new record.
When Coral Harbour A set new all-time records
Date
Kind
Detail
1975-01-17
Record low minimum temperature
Record low minimum temperature -52.8 C (-63.0 F)
Wettest Day of Each Month
Jul: 43.2 mm (1.7 in)
The wettest day on record for each calendar month at Coral Harbour A. The most was 43.2 mm (1.7 in) on 3 July 1968.
Record daily precipitation for each month at Coral Harbour A
Month
Record daily precipitation (mm)
Date
Jan
8.6 mm (0.34 in)
23 January 1977
Feb
13.0 mm (0.5 in)
3 February 1968
Mar
12.4 mm (0.5 in)
28 March 1968
Apr
24.6 mm (1.0 in)
25 April 1948
May
22.6 mm (0.9 in)
11 May 1955
Jun
33.1 mm (1.3 in)
17 June 1978
Jul
43.2 mm (1.7 in)
3 July 1968
Aug
37.6 mm (1.5 in)
3 August 1964
Sep
38.1 mm (1.5 in)
11 September 1934
Oct
26.2 mm (1.0 in)
19 October 1971
Nov
13.7 mm (0.5 in)
1 November 1968
Dec
8.6 mm (0.34 in)
6 December 1954
Period of Record Coverage
1933 to 1983
Complete yearUnder 90 percent of days
42 years of record at Coral Harbour A, 1933 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1933, 1935, 1945, 1979.
Cooler than the station meanWarmer than the station mean
One stripe for each of 37 complete years at Coral Harbour A, 1934 to 1983. Blue stripes are years cooler than the station's own mean of -11.6 C (11.2 F); red stripes are warmer. The coolest year was 1972, at -15.2 C (4.6 F), and the warmest was 1981, at -9.1 C (15.6 F). The strongest colour marks a difference of 3.7 C (6.7 F).
Annual mean temperature at Coral Harbour A as warming stripes, 1934 to 1983
Year
Annual mean temperature
Difference from the station mean
1934
-13.1 C
-1.56 C
1946
-12.1 C
-0.52 C
1947
-9.9 C
+1.64 C
1948
-11.4 C
+0.14 C
1949
-12.6 C
-1.06 C
1951
-11.5 C
+0.04 C
1952
-10.5 C
+1.02 C
1953
-10.7 C
+0.87 C
1954
-12.1 C
-0.50 C
1955
-10.1 C
+1.42 C
1956
-11.6 C
-0.07 C
1957
-12.1 C
-0.51 C
1958
-10.7 C
+0.82 C
1959
-11.7 C
-0.18 C
1960
-10.3 C
+1.26 C
1961
-11.6 C
-0.01 C
1962
-12.4 C
-0.86 C
1963
-12.1 C
-0.58 C
1964
-12.6 C
-1.07 C
1965
-12.2 C
-0.62 C
1966
-10.8 C
+0.71 C
1967
-12.9 C
-1.34 C
1968
-10.6 C
+1.00 C
1969
-10.1 C
+1.49 C
1970
-11.5 C
+0.09 C
1971
-10.8 C
+0.71 C
1972
-15.2 C
-3.68 C
1973
-10.8 C
+0.71 C
1974
-12.4 C
-0.82 C
1975
-10.7 C
+0.83 C
1976
-12.5 C
-0.90 C
1977
-9.4 C
+2.17 C
1978
-13.6 C
-2.06 C
1980
-10.4 C
+1.17 C
1981
-9.1 C
+2.47 C
1982
-12.8 C
-1.22 C
1983
-12.7 C
-1.15 C
The fitted trend in annual mean temperature here over 1934 to 1983 is 0.01 C (-0.35 to 0.38) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.02 F (-0.64 to 0.68) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Coral Harbour A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.01 C (-0.35 to 0.38) per decade
0.02 F (-0.64 to 0.68) per decade
1934 to 1983
37
Not clearly different from zero
Mean daily maximum
0.1 C (-0.3 to 0.4) per decade
0.1 F (-0.6 to 0.8) per decade
1934 to 1983
37
Not clearly different from zero
Mean daily minimum
-0.03 C (-0.39 to 0.33) per decade
-0.1 F (-0.7 to 0.6) per decade
1934 to 1983
37
Not clearly different from zero
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 Coral Harbour A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
26.1 C (79.0 F)
1948
22.0 C (71.5 F)
42
Coldest night (TNn)
-52.8 C (-63.0 F)
1975
-46.4 C (-51.5 F)
42
Wettest day (Rx1day)
43.2 mm (1.7 in)
1968
21.5 mm (0.8 in)
42
Wettest five days (Rx5day)
63.3 mm (2.5 in)
1968
34.7 mm (1.4 in)
42
Longest dry spell (CDD)
76 days
1949
37 days
42
Hottest day (TXx)
The hottest day of the year at Coral Harbour A, 1933 to 1983. The record is 26.1 C (79.0 F) in 1948, marked on the chart; the median year is 22.0 C (71.5 F).
Hottest day (TXx) at Coral Harbour A by year
Year
Hottest day (TXx)
1933
5.0 C (41.0 F)
1934
22.8 C (73.0 F)
1935
20.0 C (68.0 F)
1945
20.6 C (69.1 F)
1946
25.0 C (77.0 F)
1947
16.7 C (62.1 F)
1948
26.1 C (79.0 F)
1949
19.4 C (66.9 F)
1950
23.3 C (73.9 F)
1951
20.6 C (69.1 F)
1952
24.4 C (75.9 F)
1953
22.2 C (72.0 F)
1954
25.0 C (77.0 F)
1955
24.4 C (75.9 F)
1956
22.2 C (72.0 F)
1957
18.3 C (64.9 F)
1958
18.9 C (66.0 F)
1959
18.9 C (66.0 F)
1960
20.6 C (69.1 F)
1961
22.2 C (72.0 F)
1962
22.2 C (72.0 F)
1963
20.0 C (68.0 F)
1964
25.0 C (77.0 F)
1965
21.7 C (71.1 F)
1966
22.8 C (73.0 F)
1967
20.0 C (68.0 F)
1968
17.8 C (64.0 F)
1969
24.4 C (75.9 F)
1970
22.2 C (72.0 F)
1971
20.6 C (69.1 F)
1972
20.0 C (68.0 F)
1973
23.3 C (73.9 F)
1974
23.9 C (75.0 F)
1975
23.3 C (73.9 F)
1976
21.7 C (71.1 F)
1977
19.1 C (66.4 F)
1978
18.3 C (64.9 F)
1979
23.6 C (74.5 F)
1980
21.0 C (69.8 F)
1981
20.3 C (68.5 F)
1982
22.6 C (72.7 F)
1983
22.9 C (73.2 F)
Coldest night (TNn)
The coldest night of the year at Coral Harbour A, 1933 to 1983. The record is -52.8 C (-63.0 F) in 1975, marked on the chart; the median year is -46.4 C (-51.5 F).
Coldest night (TNn) at Coral Harbour A by year
Year
Coldest night (TNn)
1933
-40.0 C (-40.0 F)
1934
-48.9 C (-56.0 F)
1935
-51.2 C (-60.2 F)
1945
-41.1 C (-42.0 F)
1946
-47.2 C (-53.0 F)
1947
-49.4 C (-56.9 F)
1948
-48.9 C (-56.0 F)
1949
-48.3 C (-54.9 F)
1950
-50.0 C (-58.0 F)
1951
-46.1 C (-51.0 F)
1952
-45.0 C (-49.0 F)
1953
-51.7 C (-61.1 F)
1954
-48.3 C (-54.9 F)
1955
-46.7 C (-52.1 F)
1956
-42.8 C (-45.0 F)
1957
-47.8 C (-54.0 F)
1958
-44.4 C (-47.9 F)
1959
-43.9 C (-47.0 F)
1960
-42.8 C (-45.0 F)
1961
-41.7 C (-43.1 F)
1962
-46.1 C (-51.0 F)
1963
-43.9 C (-47.0 F)
1964
-49.4 C (-56.9 F)
1965
-46.7 C (-52.1 F)
1966
-50.6 C (-59.1 F)
1967
-47.2 C (-53.0 F)
1968
-43.3 C (-45.9 F)
1969
-43.3 C (-45.9 F)
1970
-48.9 C (-56.0 F)
1971
-45.0 C (-49.0 F)
1972
-47.8 C (-54.0 F)
1973
-49.4 C (-56.9 F)
1974
-46.7 C (-52.1 F)
1975
-52.8 C (-63.0 F)
1976
-43.3 C (-45.9 F)
1977
-42.0 C (-43.6 F)
1978
-43.9 C (-47.0 F)
1979
-48.6 C (-55.5 F)
1980
-43.4 C (-46.1 F)
1981
-40.6 C (-41.1 F)
1982
-44.0 C (-47.2 F)
1983
-42.9 C (-45.2 F)
Wettest day (Rx1day)
The wettest day of the year at Coral Harbour A, 1933 to 1983. The record is 43.2 mm (1.7 in) in 1968, marked on the chart; the median year is 21.5 mm (0.8 in).
Wettest day (Rx1day) at Coral Harbour A by year
Year
Wettest day (Rx1day)
1933
3.8 mm (0.15 in)
1934
38.1 mm (1.5 in)
1935
10.2 mm (0.4 in)
1945
9.9 mm (0.39 in)
1946
11.9 mm (0.5 in)
1947
21.6 mm (0.9 in)
1948
29.2 mm (1.1 in)
1949
19.8 mm (0.8 in)
1950
19.1 mm (0.8 in)
1951
8.1 mm (0.32 in)
1952
27.4 mm (1.1 in)
1953
15.2 mm (0.6 in)
1954
23.1 mm (0.9 in)
1955
24.1 mm (0.9 in)
1956
12.4 mm (0.5 in)
1957
17.3 mm (0.7 in)
1958
21.3 mm (0.8 in)
1959
17.8 mm (0.7 in)
1960
27.2 mm (1.1 in)
1961
17.0 mm (0.7 in)
1962
24.9 mm (1.0 in)
1963
13.2 mm (0.5 in)
1964
37.6 mm (1.5 in)
1965
16.5 mm (0.6 in)
1966
24.9 mm (1.0 in)
1967
16.5 mm (0.6 in)
1968
43.2 mm (1.7 in)
1969
26.2 mm (1.0 in)
1970
22.1 mm (0.9 in)
1971
26.2 mm (1.0 in)
1972
13.2 mm (0.5 in)
1973
24.6 mm (1.0 in)
1974
26.9 mm (1.1 in)
1975
18.3 mm (0.7 in)
1976
23.1 mm (0.9 in)
1977
19.0 mm (0.7 in)
1978
33.1 mm (1.3 in)
1979
20.9 mm (0.8 in)
1980
40.7 mm (1.6 in)
1981
20.8 mm (0.8 in)
1982
37.2 mm (1.5 in)
1983
35.0 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Coral Harbour A, 1933 to 1983. The record is 63.3 mm (2.5 in) in 1968, marked on the chart; the median year is 34.7 mm (1.4 in).
Wettest five days (Rx5day) at Coral Harbour A by year
Year
Wettest five days (Rx5day)
1933
8.1 mm (0.32 in)
1934
52.1 mm (2.1 in)
1935
10.2 mm (0.4 in)
1945
18.1 mm (0.7 in)
1946
24.3 mm (1.0 in)
1947
35.9 mm (1.4 in)
1948
50.2 mm (2.0 in)
1949
42.4 mm (1.7 in)
1950
22.2 mm (0.9 in)
1951
19.5 mm (0.8 in)
1952
39.3 mm (1.5 in)
1953
33.3 mm (1.3 in)
1954
23.4 mm (0.9 in)
1955
39.6 mm (1.6 in)
1956
24.7 mm (1.0 in)
1957
37.4 mm (1.5 in)
1958
40.4 mm (1.6 in)
1959
28.5 mm (1.1 in)
1960
48.2 mm (1.9 in)
1961
27.0 mm (1.1 in)
1962
40.4 mm (1.6 in)
1963
23.4 mm (0.9 in)
1964
58.2 mm (2.3 in)
1965
32.1 mm (1.3 in)
1966
40.8 mm (1.6 in)
1967
31.7 mm (1.2 in)
1968
63.3 mm (2.5 in)
1969
45.3 mm (1.8 in)
1970
30.8 mm (1.2 in)
1971
29.6 mm (1.2 in)
1972
21.1 mm (0.8 in)
1973
41.9 mm (1.6 in)
1974
33.5 mm (1.3 in)
1975
41.2 mm (1.6 in)
1976
25.1 mm (1.0 in)
1977
31.0 mm (1.2 in)
1978
47.4 mm (1.9 in)
1979
25.4 mm (1.0 in)
1980
48.6 mm (1.9 in)
1981
42.8 mm (1.7 in)
1982
51.8 mm (2.0 in)
1983
41.9 mm (1.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Coral Harbour A, 1933 to 1983. The record is 76 days in 1949, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at Coral Harbour A by year
Year
Longest dry spell (CDD)
1933
28 days
1934
47 days
1935
38 days
1945
46 days
1946
27 days
1947
36 days
1948
28 days
1949
76 days
1950
24 days
1951
47 days
1952
46 days
1953
36 days
1954
49 days
1955
29 days
1956
32 days
1957
27 days
1958
48 days
1959
45 days
1960
42 days
1961
25 days
1962
64 days
1963
70 days
1964
23 days
1965
45 days
1966
30 days
1967
34 days
1968
21 days
1969
30 days
1970
30 days
1971
23 days
1972
39 days
1973
36 days
1974
49 days
1975
54 days
1976
62 days
1977
37 days
1978
48 days
1979
38 days
1980
55 days
1981
25 days
1982
30 days
1983
36 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
37 years with a frost
Across 37 years with a frost, the median last spring frost at Coral Harbour A falls on 26 June and the median first autumn frost on 19 August, which leaves a median of 57 days between them.
Fitted over all years, the growing season changes by +4.9 days per decade at this station.
Frost dates and growing season at Coral Harbour A
Measure
Median, all years
Earliest period
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
26 June
n/a
26 June
n/a
0.0 days per decade
First autumn frost
19 August
n/a
19 August
n/a
+5.0 days per decade
Growing days
57 days
n/a
57 days
n/a
+4.9 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
37 years, 1946 to 1983
A day with at least 22.0 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 48.2 mm (1.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Coral Harbour A: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
22.0 mm (0.9 in)
5 years
29.6 mm (1.2 in)
10 years
34.4 mm (1.4 in)
25 years
40.1 mm (1.6 in)
50 years
44.2 mm (1.7 in)
Longer than the 37 years of record
100 years
48.2 mm (1.9 in)
Longer than the 37 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, 37 years of values from 1946 to 1983.
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: 43.2 mm (1.7 in) in 1968; 40.7 mm (1.6 in) in 1980; 37.6 mm (1.5 in) in 1964.
Download the Data
Data for Coral Harbour A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Coral Harbour 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.