Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Schefferville 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 Schefferville A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
4.4 C (39.9 F)
-48.3 C (-54.9 F)
n/a
n/a
Feb
5.1 C (41.2 F)
-50.6 C (-59.1 F)
n/a
n/a
Mar
9.4 C (48.9 F)
-45.0 C (-49.0 F)
n/a
n/a
Apr
10.6 C (51.1 F)
-36.1 C (-33.0 F)
n/a
n/a
May
28.3 C (82.9 F)
-23.3 C (-9.9 F)
n/a
n/a
Jun
31.1 C (88.0 F)
-7.8 C (18.0 F)
n/a
n/a
Jul
31.7 C (89.1 F)
0.0 C (32.0 F)
n/a
n/a
Aug
28.3 C (82.9 F)
-3.3 C (26.1 F)
n/a
n/a
Sep
26.7 C (80.1 F)
-9.4 C (15.1 F)
n/a
n/a
Oct
20.6 C (69.1 F)
-19.4 C (-2.9 F)
n/a
n/a
Nov
9.8 C (49.6 F)
-35.6 C (-32.1 F)
n/a
n/a
Dec
5.0 C (41.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Schefferville A still stand. 1950 holds the most, with 68.
Standing records at Schefferville A by the year they were set
Year set
Standing records
1948
20
1949
45
1950
68
1951
60
1952
48
1953
65
1954
58
1955
39
1956
58
1957
44
1958
45
1959
49
1960
54
1961
33
1962
28
1963
36
1964
38
1965
34
1966
28
1967
29
1968
37
1969
46
1970
40
1971
27
1972
58
1973
29
1974
35
1975
19
1976
42
1977
32
1978
32
1979
53
1980
22
1981
52
1982
32
1983
29
All-Time Record Progression
1 new records
1 all-time records were set at Schefferville A between 27 March 1982 and 27 March 1982. Each dot is a new record.
When Schefferville A set new all-time records
Date
Kind
Detail
1982-03-27
Record daily snowfall
Record daily snowfall 36.4 cm (14.3 in)
Wettest Day of Each Month
Jun: 51.3 mm (2.0 in)
The wettest day on record for each calendar month at Schefferville A. The most was 51.3 mm (2.0 in) on 14 June 1958.
Record daily precipitation for each month at Schefferville A
Month
Record daily precipitation (mm)
Date
Jan
29.0 mm (1.1 in)
18 January 1982
Feb
29.0 mm (1.1 in)
2 February 1976
Mar
36.8 mm (1.4 in)
27 March 1982
Apr
32.8 mm (1.3 in)
19 April 1975
May
29.5 mm (1.2 in)
29 May 1958
Jun
51.3 mm (2.0 in)
14 June 1958
Jul
44.2 mm (1.7 in)
31 July 1980
Aug
48.5 mm (1.9 in)
1 August 1970
Sep
37.1 mm (1.5 in)
27 September 1961
Oct
35.6 mm (1.4 in)
27 October 1951
Nov
35.8 mm (1.4 in)
3 November 1966
Dec
24.6 mm (1.0 in)
10 December 1962
Period of Record Coverage
1948 to 1983
Complete yearUnder 90 percent of days
36 years of record at Schefferville A, 1948 to 1983. 2 years have data for under 90 percent of days and are left out of rankings: 1948, 1979.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Schefferville A, 1949 to 1983. Blue stripes are years cooler than the station's own mean of -4.8 C (23.3 F); red stripes are warmer. The coolest year was 1972, at -7.8 C (17.9 F), and the warmest was 1981, at -2.7 C (27.1 F). The strongest colour marks a difference of 3.1 C (5.6 F).
Annual mean temperature at Schefferville A as warming stripes, 1949 to 1983
Year
Annual mean temperature
Difference from the station mean
1949
-5.4 C
-0.60 C
1950
-5.7 C
-0.91 C
1951
-4.1 C
+0.71 C
1952
-3.5 C
+1.34 C
1953
-3.9 C
+0.91 C
1954
-4.7 C
+0.09 C
1955
-3.2 C
+1.64 C
1956
-5.8 C
-0.97 C
1957
-4.5 C
+0.26 C
1958
-3.7 C
+1.15 C
1959
-4.6 C
+0.17 C
1960
-3.6 C
+1.17 C
1961
-3.7 C
+1.09 C
1962
-5.4 C
-0.64 C
1963
-5.4 C
-0.58 C
1964
-5.7 C
-0.85 C
1965
-6.4 C
-1.58 C
1966
-3.2 C
+1.58 C
1967
-5.1 C
-0.26 C
1968
-4.3 C
+0.55 C
1969
-4.4 C
+0.44 C
1970
-5.4 C
-0.63 C
1971
-5.2 C
-0.43 C
1972
-7.8 C
-3.03 C
1973
-3.6 C
+1.25 C
1974
-6.1 C
-1.34 C
1975
-5.4 C
-0.61 C
1976
-5.7 C
-0.94 C
1977
-3.8 C
+0.96 C
1978
-5.6 C
-0.82 C
1980
-4.9 C
-0.09 C
1981
-2.7 C
+2.09 C
1982
-5.8 C
-0.99 C
1983
-4.8 C
-0.02 C
The fitted trend in annual mean temperature here over 1949 to 1983 is -0.2 C (-0.6 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.4 F (-1.0 to 0.3) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Schefferville A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.6 to 0.2) per decade
-0.4 F (-1.0 to 0.3) per decade
1949 to 1983
34
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.5 to 0.2) per decade
-0.3 F (-0.9 to 0.3) per decade
1949 to 1983
34
Not clearly different from zero
Mean daily minimum
-0.2 C (-0.7 to 0.2) per decade
-0.4 F (-1.2 to 0.4) per decade
1949 to 1983
34
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 Schefferville A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
31.7 C (89.1 F)
1970
27.8 C (82.0 F)
36
Coldest night (TNn)
-50.6 C (-59.1 F)
1950
-42.2 C (-44.0 F)
36
Wettest day (Rx1day)
51.3 mm (2.0 in)
1958
32.8 mm (1.3 in)
36
Wettest five days (Rx5day)
82.8 mm (3.3 in)
1975
58.6 mm (2.3 in)
36
Longest dry spell (CDD)
29 days
1960
16 days
36
Hottest day (TXx)
The hottest day of the year at Schefferville A, 1948 to 1983. The record is 31.7 C (89.1 F) in 1970, marked on the chart; the median year is 27.8 C (82.0 F).
Hottest day (TXx) at Schefferville A by year
Year
Hottest day (TXx)
1948
23.9 C (75.0 F)
1949
30.0 C (86.0 F)
1950
28.3 C (82.9 F)
1951
26.7 C (80.1 F)
1952
31.1 C (88.0 F)
1953
29.4 C (84.9 F)
1954
28.3 C (82.9 F)
1955
27.2 C (81.0 F)
1956
26.7 C (80.1 F)
1957
26.7 C (80.1 F)
1958
26.1 C (79.0 F)
1959
28.9 C (84.0 F)
1960
26.1 C (79.0 F)
1961
27.8 C (82.0 F)
1962
27.8 C (82.0 F)
1963
27.8 C (82.0 F)
1964
27.8 C (82.0 F)
1965
22.2 C (72.0 F)
1966
26.7 C (80.1 F)
1967
28.9 C (84.0 F)
1968
26.1 C (79.0 F)
1969
26.7 C (80.1 F)
1970
31.7 C (89.1 F)
1971
24.4 C (75.9 F)
1972
28.9 C (84.0 F)
1973
27.8 C (82.0 F)
1974
28.3 C (82.9 F)
1975
27.8 C (82.0 F)
1976
29.4 C (84.9 F)
1977
25.4 C (77.7 F)
1978
31.1 C (88.0 F)
1979
28.1 C (82.6 F)
1980
27.6 C (81.7 F)
1981
27.1 C (80.8 F)
1982
25.4 C (77.7 F)
1983
30.5 C (86.9 F)
Coldest night (TNn)
The coldest night of the year at Schefferville A, 1948 to 1983. The record is -50.6 C (-59.1 F) in 1950, marked on the chart; the median year is -42.2 C (-44.0 F).
Coldest night (TNn) at Schefferville A by year
Year
Coldest night (TNn)
1948
-32.2 C (-26.0 F)
1949
-40.0 C (-40.0 F)
1950
-50.6 C (-59.1 F)
1951
-42.2 C (-44.0 F)
1952
-41.7 C (-43.1 F)
1953
-45.0 C (-49.0 F)
1954
-48.9 C (-56.0 F)
1955
-42.2 C (-44.0 F)
1956
-40.0 C (-40.0 F)
1957
-48.3 C (-54.9 F)
1958
-39.4 C (-38.9 F)
1959
-45.0 C (-49.0 F)
1960
-45.0 C (-49.0 F)
1961
-40.6 C (-41.1 F)
1962
-43.9 C (-47.0 F)
1963
-42.8 C (-45.0 F)
1964
-45.0 C (-49.0 F)
1965
-40.0 C (-40.0 F)
1966
-43.3 C (-45.9 F)
1967
-42.2 C (-44.0 F)
1968
-41.7 C (-43.1 F)
1969
-38.9 C (-38.0 F)
1970
-40.0 C (-40.0 F)
1971
-42.2 C (-44.0 F)
1972
-45.0 C (-49.0 F)
1973
-46.1 C (-51.0 F)
1974
-43.9 C (-47.0 F)
1975
-42.8 C (-45.0 F)
1976
-39.4 C (-38.9 F)
1977
-39.4 C (-38.9 F)
1978
-38.2 C (-36.8 F)
1979
-40.9 C (-41.6 F)
1980
-36.5 C (-33.7 F)
1981
-36.0 C (-32.8 F)
1982
-37.0 C (-34.6 F)
1983
-45.0 C (-49.0 F)
Wettest day (Rx1day)
The wettest day of the year at Schefferville A, 1948 to 1983. The record is 51.3 mm (2.0 in) in 1958, marked on the chart; the median year is 32.8 mm (1.3 in).
Wettest day (Rx1day) at Schefferville A by year
Year
Wettest day (Rx1day)
1948
29.5 mm (1.2 in)
1949
38.9 mm (1.5 in)
1950
36.1 mm (1.4 in)
1951
35.6 mm (1.4 in)
1952
30.2 mm (1.2 in)
1953
24.1 mm (0.9 in)
1954
36.3 mm (1.4 in)
1955
27.7 mm (1.1 in)
1956
23.4 mm (0.9 in)
1957
25.4 mm (1.0 in)
1958
51.3 mm (2.0 in)
1959
38.4 mm (1.5 in)
1960
35.8 mm (1.4 in)
1961
37.1 mm (1.5 in)
1962
28.7 mm (1.1 in)
1963
28.2 mm (1.1 in)
1964
36.1 mm (1.4 in)
1965
28.2 mm (1.1 in)
1966
35.8 mm (1.4 in)
1967
45.5 mm (1.8 in)
1968
32.8 mm (1.3 in)
1969
22.1 mm (0.9 in)
1970
48.5 mm (1.9 in)
1971
34.3 mm (1.4 in)
1972
25.9 mm (1.0 in)
1973
24.1 mm (0.9 in)
1974
25.4 mm (1.0 in)
1975
32.8 mm (1.3 in)
1976
41.4 mm (1.6 in)
1977
30.8 mm (1.2 in)
1978
26.5 mm (1.0 in)
1979
29.0 mm (1.1 in)
1980
44.2 mm (1.7 in)
1981
37.0 mm (1.5 in)
1982
36.8 mm (1.4 in)
1983
26.7 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Schefferville A, 1948 to 1983. The record is 82.8 mm (3.3 in) in 1975, marked on the chart; the median year is 58.6 mm (2.3 in).
Wettest five days (Rx5day) at Schefferville A by year
Year
Wettest five days (Rx5day)
1948
35.9 mm (1.4 in)
1949
61.8 mm (2.4 in)
1950
73.9 mm (2.9 in)
1951
59.5 mm (2.3 in)
1952
59.9 mm (2.4 in)
1953
47.8 mm (1.9 in)
1954
58.4 mm (2.3 in)
1955
35.3 mm (1.4 in)
1956
52.5 mm (2.1 in)
1957
47.5 mm (1.9 in)
1958
74.7 mm (2.9 in)
1959
65.4 mm (2.6 in)
1960
56.7 mm (2.2 in)
1961
64.5 mm (2.5 in)
1962
48.2 mm (1.9 in)
1963
47.3 mm (1.9 in)
1964
67.1 mm (2.6 in)
1965
57.4 mm (2.3 in)
1966
69.5 mm (2.7 in)
1967
54.4 mm (2.1 in)
1968
73.2 mm (2.9 in)
1969
47.8 mm (1.9 in)
1970
55.9 mm (2.2 in)
1971
49.5 mm (1.9 in)
1972
39.1 mm (1.5 in)
1973
41.5 mm (1.6 in)
1974
54.3 mm (2.1 in)
1975
82.8 mm (3.3 in)
1976
67.6 mm (2.7 in)
1977
58.8 mm (2.3 in)
1978
63.9 mm (2.5 in)
1979
73.0 mm (2.9 in)
1980
67.6 mm (2.7 in)
1981
56.7 mm (2.2 in)
1982
61.8 mm (2.4 in)
1983
62.4 mm (2.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Schefferville A, 1948 to 1983. The record is 29 days in 1960, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Schefferville A by year
Year
Longest dry spell (CDD)
1948
18 days
1949
14 days
1950
18 days
1951
13 days
1952
21 days
1953
18 days
1954
23 days
1955
25 days
1956
13 days
1957
17 days
1958
23 days
1959
15 days
1960
29 days
1961
17 days
1962
27 days
1963
15 days
1964
17 days
1965
12 days
1966
16 days
1967
17 days
1968
15 days
1969
15 days
1970
17 days
1971
9 days
1972
16 days
1973
14 days
1974
14 days
1975
14 days
1976
13 days
1977
15 days
1978
16 days
1979
14 days
1980
16 days
1981
15 days
1982
14 days
1983
16 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
34 years with a frost
Across 34 years with a frost, the median last spring frost at Schefferville A falls on 15 June and the median first autumn frost on 5 September, which leaves a median of 82 days between them.
Fitted over all years, the growing season changes by +7.9 days per decade at this station.
Frost dates and growing season at Schefferville A
Measure
Median, all years
Earliest period
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
15 June
n/a
14 June
n/a
-1.5 days per decade
First autumn frost
5 September
n/a
7 September
n/a
+6.3 days per decade
Growing days
82 days
n/a
83 days
n/a
+7.9 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
34 years, 1949 to 1983
A day with at least 32.4 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 54.5 mm (2.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Schefferville 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
32.4 mm (1.3 in)
5 years
39.3 mm (1.5 in)
10 years
43.4 mm (1.7 in)
25 years
48.2 mm (1.9 in)
50 years
51.5 mm (2.0 in)
Longer than the 34 years of record
100 years
54.5 mm (2.1 in)
Longer than the 34 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, 34 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: 51.3 mm (2.0 in) in 1958; 48.5 mm (1.9 in) in 1970; 45.5 mm (1.8 in) in 1967.
Download the Data
Data for Schefferville A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Schefferville 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.