Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Mould 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 Mould Bay A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
-5.3 C (22.5 F)
-52.2 C (-62.0 F)
n/a
n/a
Feb
-8.9 C (16.0 F)
-53.9 C (-65.0 F)
n/a
n/a
Mar
-6.7 C (19.9 F)
-50.0 C (-58.0 F)
n/a
n/a
Apr
-1.7 C (28.9 F)
-46.1 C (-51.0 F)
n/a
n/a
May
5.6 C (42.1 F)
-28.9 C (-20.0 F)
n/a
n/a
Jun
13.3 C (55.9 F)
-14.4 C (6.1 F)
n/a
n/a
Jul
16.2 C (61.2 F)
-3.9 C (25.0 F)
n/a
n/a
Aug
14.4 C (57.9 F)
-10.9 C (12.4 F)
n/a
n/a
Sep
7.8 C (46.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Oct
2.5 C (36.5 F)
-36.1 C (-33.0 F)
n/a
n/a
Nov
-1.7 C (28.9 F)
-44.4 C (-47.9 F)
n/a
n/a
Dec
-2.6 C (27.3 F)
-52.8 C (-63.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mould Bay A still stand. 1964 holds the most, with 65.
Standing records at Mould Bay A by the year they were set
Year set
Standing records
1948
50
1949
33
1950
22
1951
30
1952
64
1953
45
1954
40
1955
38
1956
47
1957
31
1958
59
1959
22
1960
25
1961
27
1962
50
1963
40
1964
65
1965
34
1966
22
1967
47
1968
38
1969
38
1970
28
1971
47
1972
30
1973
58
1974
55
1975
46
1976
34
1977
36
1978
60
1979
56
1980
42
1981
52
1982
20
1983
33
All-Time Record Progression
2 new records
2 all-time records were set at Mould Bay A between 15 July 1983 and 15 July 1983. Each dot is a new record.
When Mould Bay A set new all-time records
Date
Kind
Detail
1983-07-15
Record high maximum temperature
Record high maximum temperature 16.2 C (61.2 F)
1983-07-15
Record high minimum temperature
Record high minimum temperature 8.8 C (47.8 F)
Wettest Day of Each Month
Aug: 47.8 mm (1.9 in)
The wettest day on record for each calendar month at Mould Bay A. The most was 47.8 mm (1.9 in) on 19 August 1960.
Record daily precipitation for each month at Mould Bay A
Month
Record daily precipitation (mm)
Date
Jan
6.0 mm (0.24 in)
16 January 1981
Feb
6.0 mm (0.24 in)
15 February 1980
Mar
5.6 mm (0.22 in)
21 March 1955
Apr
13.2 mm (0.5 in)
26 April 1976
May
8.6 mm (0.34 in)
22 May 1972
Jun
12.2 mm (0.5 in)
5 June 1962
Jul
21.3 mm (0.8 in)
24 July 1949
Aug
47.8 mm (1.9 in)
19 August 1960
Sep
11.4 mm (0.4 in)
1 September 1957
Oct
12.0 mm (0.5 in)
28 October 1982
Nov
6.1 mm (0.24 in)
12 November 1973
Dec
4.6 mm (0.18 in)
28 December 1974
Period of Record Coverage
1948 to 1983
Complete yearUnder 90 percent of days
36 years of record at Mould Bay A, 1948 to 1983. 3 years have data for under 90 percent of days and are left out of rankings: 1948, 1949, 1950.
Cooler than the station meanWarmer than the station mean
One stripe for each of 33 complete years at Mould Bay A, 1951 to 1983. Blue stripes are years cooler than the station's own mean of -17.7 C (0.1 F); red stripes are warmer. The coolest year was 1964, at -19.4 C (-2.9 F), and the warmest was 1981, at -15.7 C (3.7 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Mould Bay A as warming stripes, 1951 to 1983
Year
Annual mean temperature
Difference from the station mean
1951
-17.0 C
+0.75 C
1952
-16.9 C
+0.80 C
1953
-17.2 C
+0.57 C
1954
-17.6 C
+0.11 C
1955
-18.2 C
-0.44 C
1956
-18.5 C
-0.74 C
1957
-17.9 C
-0.13 C
1958
-17.1 C
+0.65 C
1959
-17.4 C
+0.30 C
1960
-16.8 C
+0.92 C
1961
-18.4 C
-0.70 C
1962
-16.7 C
+1.02 C
1963
-17.5 C
+0.21 C
1964
-19.4 C
-1.64 C
1965
-17.8 C
-0.10 C
1966
-18.4 C
-0.69 C
1967
-18.1 C
-0.41 C
1968
-18.3 C
-0.54 C
1969
-16.7 C
+1.05 C
1970
-18.1 C
-0.41 C
1971
-17.4 C
+0.30 C
1972
-19.0 C
-1.25 C
1973
-16.4 C
+1.33 C
1974
-19.0 C
-1.29 C
1975
-18.3 C
-0.53 C
1976
-17.8 C
-0.09 C
1977
-17.6 C
+0.15 C
1978
-17.4 C
+0.33 C
1979
-18.7 C
-1.00 C
1980
-17.5 C
+0.25 C
1981
-15.7 C
+2.04 C
1982
-18.7 C
-0.99 C
1983
-17.4 C
+0.33 C
The fitted trend in annual mean temperature here over 1951 to 1983 is -0.1 C (-0.4 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.7 to 0.4) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Mould Bay A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.4 to 0.2) per decade
-0.1 F (-0.7 to 0.4) per decade
1951 to 1983
33
Not clearly different from zero
Mean daily maximum
-0.05 C (-0.36 to 0.27) per decade
-0.1 F (-0.6 to 0.5) per decade
1951 to 1983
33
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.4 to 0.2) per decade
-0.2 F (-0.8 to 0.4) per decade
1951 to 1983
33
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
1948 to 1983
Yearly extremes at Mould Bay A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
16.2 C (61.2 F)
1983
13.3 C (55.9 F)
36
Coldest night (TNn)
-53.9 C (-65.0 F)
1967
-47.8 C (-54.0 F)
36
Wettest day (Rx1day)
47.8 mm (1.9 in)
1960
9.8 mm (0.39 in)
36
Wettest five days (Rx5day)
52.4 mm (2.1 in)
1960
13.9 mm (0.5 in)
36
Longest dry spell (CDD)
199 days
1957
84 days
36
Hottest day (TXx)
The hottest day of the year at Mould Bay A, 1948 to 1983. The record is 16.2 C (61.2 F) in 1983, marked on the chart; the median year is 13.3 C (55.9 F).
Hottest day (TXx) at Mould Bay A by year
Year
Hottest day (TXx)
1948
13.9 C (57.0 F)
1949
13.9 C (57.0 F)
1950
-5.0 C (23.0 F)
1951
13.3 C (55.9 F)
1952
15.0 C (59.0 F)
1953
6.7 C (44.1 F)
1954
11.7 C (53.1 F)
1955
10.6 C (51.1 F)
1956
12.2 C (54.0 F)
1957
14.4 C (57.9 F)
1958
13.9 C (57.0 F)
1959
12.8 C (55.0 F)
1960
15.6 C (60.1 F)
1961
12.8 C (55.0 F)
1962
13.9 C (57.0 F)
1963
14.4 C (57.9 F)
1964
12.8 C (55.0 F)
1965
10.6 C (51.1 F)
1966
12.8 C (55.0 F)
1967
9.4 C (48.9 F)
1968
14.4 C (57.9 F)
1969
13.3 C (55.9 F)
1970
13.9 C (57.0 F)
1971
15.0 C (59.0 F)
1972
10.6 C (51.1 F)
1973
13.9 C (57.0 F)
1974
16.1 C (61.0 F)
1975
10.6 C (51.1 F)
1976
13.3 C (55.9 F)
1977
14.6 C (58.3 F)
1978
13.0 C (55.4 F)
1979
11.8 C (53.2 F)
1980
11.0 C (51.8 F)
1981
13.2 C (55.8 F)
1982
13.3 C (55.9 F)
1983
16.2 C (61.2 F)
Coldest night (TNn)
The coldest night of the year at Mould Bay A, 1948 to 1983. The record is -53.9 C (-65.0 F) in 1967, marked on the chart; the median year is -47.8 C (-54.0 F).
Coldest night (TNn) at Mould Bay A by year
Year
Coldest night (TNn)
1948
-52.8 C (-63.0 F)
1949
-45.6 C (-50.1 F)
1950
-50.0 C (-58.0 F)
1951
-47.8 C (-54.0 F)
1952
-45.6 C (-50.1 F)
1953
-48.9 C (-56.0 F)
1954
-50.0 C (-58.0 F)
1955
-47.8 C (-54.0 F)
1956
-48.3 C (-54.9 F)
1957
-46.7 C (-52.1 F)
1958
-48.9 C (-56.0 F)
1959
-44.4 C (-47.9 F)
1960
-46.1 C (-51.0 F)
1961
-46.7 C (-52.1 F)
1962
-52.2 C (-62.0 F)
1963
-47.8 C (-54.0 F)
1964
-50.0 C (-58.0 F)
1965
-45.0 C (-49.0 F)
1966
-49.4 C (-56.9 F)
1967
-53.9 C (-65.0 F)
1968
-48.9 C (-56.0 F)
1969
-43.9 C (-47.0 F)
1970
-45.6 C (-50.1 F)
1971
-46.1 C (-51.0 F)
1972
-49.4 C (-56.9 F)
1973
-49.4 C (-56.9 F)
1974
-45.6 C (-50.1 F)
1975
-51.7 C (-61.1 F)
1976
-49.4 C (-56.9 F)
1977
-47.6 C (-53.7 F)
1978
-40.8 C (-41.4 F)
1979
-50.9 C (-59.6 F)
1980
-45.6 C (-50.1 F)
1981
-48.1 C (-54.6 F)
1982
-43.5 C (-46.3 F)
1983
-47.8 C (-54.0 F)
Wettest day (Rx1day)
The wettest day of the year at Mould Bay A, 1948 to 1983. The record is 47.8 mm (1.9 in) in 1960, marked on the chart; the median year is 9.8 mm (0.39 in).
Wettest day (Rx1day) at Mould Bay A by year
Year
Wettest day (Rx1day)
1948
12.7 mm (0.5 in)
1949
21.3 mm (0.8 in)
1950
5.8 mm (0.23 in)
1951
7.9 mm (0.31 in)
1952
2.5 mm (0.10 in)
1953
11.7 mm (0.5 in)
1954
7.9 mm (0.31 in)
1955
14.2 mm (0.6 in)
1956
4.3 mm (0.17 in)
1957
11.4 mm (0.4 in)
1958
6.1 mm (0.24 in)
1959
14.7 mm (0.6 in)
1960
47.8 mm (1.9 in)
1961
10.7 mm (0.4 in)
1962
12.2 mm (0.5 in)
1963
9.9 mm (0.39 in)
1964
6.9 mm (0.27 in)
1965
2.5 mm (0.10 in)
1966
9.1 mm (0.36 in)
1967
10.9 mm (0.4 in)
1968
4.6 mm (0.18 in)
1969
9.9 mm (0.39 in)
1970
6.9 mm (0.27 in)
1971
13.0 mm (0.5 in)
1972
8.6 mm (0.34 in)
1973
9.7 mm (0.38 in)
1974
14.0 mm (0.6 in)
1975
8.6 mm (0.34 in)
1976
13.2 mm (0.5 in)
1977
6.7 mm (0.26 in)
1978
6.5 mm (0.26 in)
1979
5.6 mm (0.22 in)
1980
6.0 mm (0.24 in)
1981
11.4 mm (0.4 in)
1982
12.0 mm (0.5 in)
1983
10.0 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mould Bay A, 1948 to 1983. The record is 52.4 mm (2.1 in) in 1960, marked on the chart; the median year is 13.9 mm (0.5 in).
Wettest five days (Rx5day) at Mould Bay A by year
Year
Wettest five days (Rx5day)
1948
20.0 mm (0.8 in)
1949
27.1 mm (1.1 in)
1950
9.4 mm (0.37 in)
1951
8.9 mm (0.35 in)
1952
4.9 mm (0.19 in)
1953
14.5 mm (0.6 in)
1954
13.9 mm (0.5 in)
1955
20.3 mm (0.8 in)
1956
7.3 mm (0.29 in)
1957
13.5 mm (0.5 in)
1958
11.7 mm (0.5 in)
1959
25.3 mm (1.0 in)
1960
52.4 mm (2.1 in)
1961
16.7 mm (0.7 in)
1962
13.5 mm (0.5 in)
1963
21.3 mm (0.8 in)
1964
12.3 mm (0.5 in)
1965
4.6 mm (0.18 in)
1966
21.0 mm (0.8 in)
1967
23.6 mm (0.9 in)
1968
7.0 mm (0.28 in)
1969
17.5 mm (0.7 in)
1970
14.0 mm (0.6 in)
1971
20.1 mm (0.8 in)
1972
10.4 mm (0.4 in)
1973
20.3 mm (0.8 in)
1974
19.3 mm (0.8 in)
1975
12.2 mm (0.5 in)
1976
15.0 mm (0.6 in)
1977
9.3 mm (0.37 in)
1978
11.8 mm (0.5 in)
1979
7.6 mm (0.30 in)
1980
10.8 mm (0.4 in)
1981
15.4 mm (0.6 in)
1982
12.8 mm (0.5 in)
1983
13.9 mm (0.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Mould Bay A, 1948 to 1983. The record is 199 days in 1957, marked on the chart; the median year is 84 days.
Longest dry spell (CDD) at Mould Bay A by year
Year
Longest dry spell (CDD)
1948
49 days
1949
138 days
1950
74 days
1951
81 days
1952
65 days
1953
88 days
1954
96 days
1955
110 days
1956
140 days
1957
199 days
1958
103 days
1959
107 days
1960
97 days
1961
122 days
1962
105 days
1963
63 days
1964
112 days
1965
74 days
1966
104 days
1967
110 days
1968
62 days
1969
59 days
1970
86 days
1971
50 days
1972
64 days
1973
81 days
1974
49 days
1975
56 days
1976
62 days
1977
100 days
1978
47 days
1979
97 days
1980
47 days
1981
79 days
1982
64 days
1983
89 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
33 years with a frost
Across 33 years with a frost, the median last spring frost at Mould Bay A falls on 29 June and the median first autumn frost on 3 July, which leaves a median of 5 days between them.
Fitted over all years, the growing season changes by +0.1 days per decade at this station.
Frost dates and growing season at Mould Bay A
Measure
Median, all years
Earliest period
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
29 June
n/a
29 June
n/a
+0.3 days per decade
First autumn frost
3 July
n/a
3 July
n/a
+0.4 days per decade
Growing days
5 days
n/a
5 days
n/a
+0.1 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
35 years, 1949 to 1983
A day with at least 8.7 mm (0.34 in) of rain is expected about once in 2 years. A day with at least 36.3 mm (1.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Mould Bay 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
8.7 mm (0.34 in)
5 years
13.6 mm (0.5 in)
10 years
17.7 mm (0.7 in)
25 years
24.0 mm (0.9 in)
50 years
29.6 mm (1.2 in)
Longer than the 35 years of record
100 years
36.3 mm (1.4 in)
Longer than the 35 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, 35 years of values from 1949 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: 47.8 mm (1.9 in) in 1960; 21.3 mm (0.8 in) in 1949; 14.7 mm (0.6 in) in 1959.
Download the Data
Data for Mould Bay A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mould 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.