Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Fort McMurray 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 Fort McMurray A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
10.6 C (51.1 F)
-50.0 C (-58.0 F)
n/a
n/a
Feb
15.0 C (59.0 F)
-50.6 C (-59.1 F)
n/a
n/a
Mar
18.9 C (66.0 F)
-44.4 C (-47.9 F)
n/a
n/a
Apr
30.2 C (86.4 F)
-34.4 C (-29.9 F)
n/a
n/a
May
32.8 C (91.0 F)
-13.3 C (8.1 F)
n/a
n/a
Jun
36.1 C (97.0 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
35.6 C (96.1 F)
-3.3 C (26.1 F)
n/a
n/a
Aug
36.0 C (96.8 F)
-2.8 C (27.0 F)
n/a
n/a
Sep
32.4 C (90.3 F)
-15.6 C (3.9 F)
n/a
n/a
Oct
28.4 C (83.1 F)
-22.8 C (-9.0 F)
n/a
n/a
Nov
18.9 C (66.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Dec
10.0 C (50.0 F)
-47.2 C (-53.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Fort McMurray A still stand. 1951 holds the most, with 75.
Standing records at Fort McMurray A by the year they were set
Year set
Standing records
1944
56
1945
51
1946
36
1947
40
1948
38
1949
53
1950
64
1951
75
1952
43
1953
33
1954
75
1955
42
1956
40
1957
30
1958
25
1959
36
1960
12
1961
45
1962
27
1963
31
1964
27
1965
41
1966
44
1967
25
1968
33
1969
28
1970
22
1971
23
1972
35
1973
24
1974
19
1975
26
1976
29
1977
47
1978
18
1979
35
1980
34
1981
45
1982
30
1983
27
All-Time Record Progression
2 new records
2 all-time records were set at Fort McMurray A between 13 July 1975 and 26 August 1976. Each dot is a new record.
When Fort McMurray A set new all-time records
Date
Kind
Detail
1975-07-13
Record high minimum temperature
Record high minimum temperature 20.0 C (68.0 F)
1976-08-26
Record daily precipitation
Record daily precipitation 94.5 mm (3.7 in)
Wettest Day of Each Month
Aug: 94.5 mm (3.7 in)
The wettest day on record for each calendar month at Fort McMurray A. The most was 94.5 mm (3.7 in) on 26 August 1976.
Record daily precipitation for each month at Fort McMurray A
Month
Record daily precipitation (mm)
Date
Jan
16.0 mm (0.6 in)
2 January 1973
Feb
13.2 mm (0.5 in)
26 February 1950
Mar
29.7 mm (1.2 in)
16 March 1951
Apr
20.8 mm (0.8 in)
13 April 1951
May
39.4 mm (1.6 in)
17 May 1970
Jun
46.0 mm (1.8 in)
5 June 1962
Jul
51.6 mm (2.0 in)
13 July 1944
Aug
94.5 mm (3.7 in)
26 August 1976
Sep
60.5 mm (2.4 in)
2 September 1970
Oct
29.4 mm (1.2 in)
14 October 1983
Nov
15.7 mm (0.6 in)
22 November 1967
Dec
22.6 mm (0.9 in)
21 December 1961
Period of Record Coverage
1944 to 1983
Complete yearUnder 90 percent of days
40 years of record at Fort McMurray A, 1944 to 1983. Every year has data for at least 90 percent of its days.
Cooler than the station meanWarmer than the station mean
One stripe for each of 40 complete years at Fort McMurray A, 1944 to 1983. Blue stripes are years cooler than the station's own mean of -0.2 C (31.6 F); red stripes are warmer. The coolest year was 1951, at -2.7 C (27.1 F), and the warmest was 1981, at 3.0 C (37.4 F). The strongest colour marks a difference of 3.3 C (5.9 F).
Annual mean temperature at Fort McMurray A as warming stripes, 1944 to 1983
Year
Annual mean temperature
Difference from the station mean
1944
1.8 C
+2.02 C
1945
-1.2 C
-1.01 C
1946
-0.9 C
-0.65 C
1947
-1.5 C
-1.23 C
1948
-0.8 C
-0.57 C
1949
-0.5 C
-0.23 C
1950
-2.6 C
-2.41 C
1951
-2.7 C
-2.48 C
1952
0.7 C
+0.92 C
1953
1.1 C
+1.34 C
1954
0.1 C
+0.37 C
1955
-1.6 C
-1.38 C
1956
-0.2 C
+0.00 C
1957
-0.3 C
-0.10 C
1958
0.6 C
+0.84 C
1959
-0.5 C
-0.30 C
1960
0.0 C
+0.25 C
1961
-0.5 C
-0.23 C
1962
-0.6 C
-0.33 C
1963
0.3 C
+0.53 C
1964
-0.2 C
+0.07 C
1965
-1.3 C
-1.11 C
1966
-1.6 C
-1.35 C
1967
-0.6 C
-0.33 C
1968
-0.1 C
+0.10 C
1969
-0.5 C
-0.23 C
1970
-0.5 C
-0.23 C
1971
0.0 C
+0.26 C
1972
-1.9 C
-1.65 C
1973
0.6 C
+0.87 C
1974
-0.1 C
+0.18 C
1975
-0.1 C
+0.13 C
1976
1.5 C
+1.75 C
1977
1.3 C
+1.51 C
1978
0.0 C
+0.26 C
1979
-0.2 C
+0.01 C
1980
1.3 C
+1.52 C
1981
3.0 C
+3.24 C
1982
-1.7 C
-1.42 C
1983
0.7 C
+0.90 C
The annual mean temperature here has risen by 0.33 C (0.02 to 0.64) per decade over 1944 to 1983. In Fahrenheit: 0.60 F (0.04 to 1.16) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Fort McMurray A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.33 C (0.02 to 0.64) per decade
0.60 F (0.04 to 1.16) per decade
1944 to 1983
40
Rise
Mean daily maximum
0.2 C (-0.2 to 0.5) per decade
0.3 F (-0.3 to 0.8) per decade
1944 to 1983
40
Not clearly different from zero
Mean daily minimum
0.5 C (0.2 to 0.8) per decade
0.9 F (0.3 to 1.5) per decade
1944 to 1983
40
Rise
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
1944 to 1983
Yearly extremes at Fort McMurray A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.1 C (97.0 F)
1970
32.2 C (90.0 F)
40
Coldest night (TNn)
-50.6 C (-59.1 F)
1947
-42.2 C (-44.0 F)
40
Wettest day (Rx1day)
94.5 mm (3.7 in)
1976
31.7 mm (1.2 in)
40
Wettest five days (Rx5day)
113.6 mm (4.5 in)
1976
50.7 mm (2.0 in)
40
Longest dry spell (CDD)
59 days
1945
24 days
40
Hottest day (TXx)
The hottest day of the year at Fort McMurray A, 1944 to 1983. The record is 36.1 C (97.0 F) in 1970, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Fort McMurray A by year
Year
Hottest day (TXx)
1944
33.9 C (93.0 F)
1945
32.2 C (90.0 F)
1946
32.2 C (90.0 F)
1947
28.9 C (84.0 F)
1948
30.6 C (87.1 F)
1949
31.7 C (89.1 F)
1950
35.0 C (95.0 F)
1951
31.1 C (88.0 F)
1952
28.9 C (84.0 F)
1953
32.8 C (91.0 F)
1954
30.6 C (87.1 F)
1955
35.6 C (96.1 F)
1956
31.7 C (89.1 F)
1957
28.3 C (82.9 F)
1958
32.8 C (91.0 F)
1959
32.8 C (91.0 F)
1960
33.9 C (93.0 F)
1961
34.4 C (93.9 F)
1962
29.4 C (84.9 F)
1963
32.2 C (90.0 F)
1964
35.0 C (95.0 F)
1965
32.2 C (90.0 F)
1966
30.6 C (87.1 F)
1967
31.7 C (89.1 F)
1968
32.8 C (91.0 F)
1969
34.4 C (93.9 F)
1970
36.1 C (97.0 F)
1971
33.3 C (91.9 F)
1972
31.1 C (88.0 F)
1973
32.2 C (90.0 F)
1974
32.2 C (90.0 F)
1975
32.2 C (90.0 F)
1976
30.0 C (86.0 F)
1977
30.2 C (86.4 F)
1978
31.2 C (88.2 F)
1979
33.5 C (92.3 F)
1980
30.6 C (87.1 F)
1981
36.0 C (96.8 F)
1982
31.1 C (88.0 F)
1983
33.2 C (91.8 F)
Coldest night (TNn)
The coldest night of the year at Fort McMurray A, 1944 to 1983. The record is -50.6 C (-59.1 F) in 1947, marked on the chart; the median year is -42.2 C (-44.0 F).
Coldest night (TNn) at Fort McMurray A by year
Year
Coldest night (TNn)
1944
-37.2 C (-35.0 F)
1945
-42.2 C (-44.0 F)
1946
-46.7 C (-52.1 F)
1947
-50.6 C (-59.1 F)
1948
-41.7 C (-43.1 F)
1949
-46.1 C (-51.0 F)
1950
-50.0 C (-58.0 F)
1951
-47.2 C (-53.0 F)
1952
-45.0 C (-49.0 F)
1953
-42.2 C (-44.0 F)
1954
-47.8 C (-54.0 F)
1955
-41.1 C (-42.0 F)
1956
-41.7 C (-43.1 F)
1957
-41.1 C (-42.0 F)
1958
-37.2 C (-35.0 F)
1959
-42.2 C (-44.0 F)
1960
-37.2 C (-35.0 F)
1961
-42.2 C (-44.0 F)
1962
-45.0 C (-49.0 F)
1963
-42.2 C (-44.0 F)
1964
-41.1 C (-42.0 F)
1965
-43.9 C (-47.0 F)
1966
-45.0 C (-49.0 F)
1967
-40.6 C (-41.1 F)
1968
-40.6 C (-41.1 F)
1969
-45.0 C (-49.0 F)
1970
-41.1 C (-42.0 F)
1971
-42.2 C (-44.0 F)
1972
-45.0 C (-49.0 F)
1973
-38.9 C (-38.0 F)
1974
-40.0 C (-40.0 F)
1975
-43.3 C (-45.9 F)
1976
-40.6 C (-41.1 F)
1977
-42.7 C (-44.9 F)
1978
-41.8 C (-43.2 F)
1979
-42.9 C (-45.2 F)
1980
-39.7 C (-39.5 F)
1981
-41.2 C (-42.2 F)
1982
-44.7 C (-48.5 F)
1983
-39.3 C (-38.7 F)
Wettest day (Rx1day)
The wettest day of the year at Fort McMurray A, 1944 to 1983. The record is 94.5 mm (3.7 in) in 1976, marked on the chart; the median year is 31.7 mm (1.2 in).
Wettest day (Rx1day) at Fort McMurray A by year
Year
Wettest day (Rx1day)
1944
51.6 mm (2.0 in)
1945
43.7 mm (1.7 in)
1946
38.6 mm (1.5 in)
1947
23.4 mm (0.9 in)
1948
29.2 mm (1.1 in)
1949
45.7 mm (1.8 in)
1950
27.4 mm (1.1 in)
1951
29.7 mm (1.2 in)
1952
23.4 mm (0.9 in)
1953
31.8 mm (1.3 in)
1954
39.4 mm (1.6 in)
1955
25.1 mm (1.0 in)
1956
45.7 mm (1.8 in)
1957
24.1 mm (0.9 in)
1958
48.5 mm (1.9 in)
1959
38.1 mm (1.5 in)
1960
47.5 mm (1.9 in)
1961
29.5 mm (1.2 in)
1962
46.0 mm (1.8 in)
1963
18.0 mm (0.7 in)
1964
18.8 mm (0.7 in)
1965
22.9 mm (0.9 in)
1966
38.4 mm (1.5 in)
1967
37.6 mm (1.5 in)
1968
25.4 mm (1.0 in)
1969
55.1 mm (2.2 in)
1970
60.5 mm (2.4 in)
1971
20.3 mm (0.8 in)
1972
21.6 mm (0.9 in)
1973
42.9 mm (1.7 in)
1974
26.7 mm (1.1 in)
1975
31.5 mm (1.2 in)
1976
94.5 mm (3.7 in)
1977
26.5 mm (1.0 in)
1978
33.1 mm (1.3 in)
1979
31.4 mm (1.2 in)
1980
60.6 mm (2.4 in)
1981
42.3 mm (1.7 in)
1982
23.6 mm (0.9 in)
1983
29.4 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Fort McMurray A, 1944 to 1983. The record is 113.6 mm (4.5 in) in 1976, marked on the chart; the median year is 50.7 mm (2.0 in).
Wettest five days (Rx5day) at Fort McMurray A by year
Year
Wettest five days (Rx5day)
1944
66.3 mm (2.6 in)
1945
49.4 mm (1.9 in)
1946
66.1 mm (2.6 in)
1947
35.9 mm (1.4 in)
1948
33.7 mm (1.3 in)
1949
51.0 mm (2.0 in)
1950
32.6 mm (1.3 in)
1951
46.8 mm (1.8 in)
1952
32.3 mm (1.3 in)
1953
43.2 mm (1.7 in)
1954
60.0 mm (2.4 in)
1955
41.6 mm (1.6 in)
1956
86.8 mm (3.4 in)
1957
50.3 mm (2.0 in)
1958
91.2 mm (3.6 in)
1959
56.2 mm (2.2 in)
1960
99.8 mm (3.9 in)
1961
48.5 mm (1.9 in)
1962
75.2 mm (3.0 in)
1963
28.7 mm (1.1 in)
1964
33.3 mm (1.3 in)
1965
28.8 mm (1.1 in)
1966
58.9 mm (2.3 in)
1967
66.5 mm (2.6 in)
1968
46.5 mm (1.8 in)
1969
73.1 mm (2.9 in)
1970
73.0 mm (2.9 in)
1971
41.5 mm (1.6 in)
1972
37.5 mm (1.5 in)
1973
81.7 mm (3.2 in)
1974
31.3 mm (1.2 in)
1975
67.8 mm (2.7 in)
1976
113.6 mm (4.5 in)
1977
30.9 mm (1.2 in)
1978
54.3 mm (2.1 in)
1979
59.6 mm (2.3 in)
1980
83.0 mm (3.3 in)
1981
57.3 mm (2.3 in)
1982
36.1 mm (1.4 in)
1983
38.5 mm (1.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Fort McMurray A, 1944 to 1983. The record is 59 days in 1945, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Fort McMurray A by year
Year
Longest dry spell (CDD)
1944
25 days
1945
59 days
1946
41 days
1947
17 days
1948
35 days
1949
42 days
1950
37 days
1951
22 days
1952
23 days
1953
42 days
1954
39 days
1955
18 days
1956
30 days
1957
24 days
1958
16 days
1959
32 days
1960
21 days
1961
29 days
1962
16 days
1963
27 days
1964
18 days
1965
26 days
1966
23 days
1967
22 days
1968
35 days
1969
20 days
1970
16 days
1971
40 days
1972
12 days
1973
23 days
1974
23 days
1975
17 days
1976
33 days
1977
22 days
1978
30 days
1979
27 days
1980
56 days
1981
23 days
1982
19 days
1983
22 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
40 years with a frost
Across 40 years with a frost, the median last spring frost at Fort McMurray A falls on 7 June and the median first autumn frost on 27 August, which leaves a median of 80 days between them.
Fitted over all years, the growing season changes by +17.3 days per decade at this station.
Frost dates and growing season at Fort McMurray A
Measure
Median, all years
Earliest period
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
7 June
n/a
4 June
n/a
-7.7 days per decade
First autumn frost
27 August
n/a
1 September
n/a
+9.6 days per decade
Growing days
80 days
n/a
86 days
n/a
+17.3 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
40 years, 1944 to 1983
A day with at least 32.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 89.9 mm (3.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Fort McMurray 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
32.9 mm (1.3 in)
5 years
45.5 mm (1.8 in)
10 years
54.8 mm (2.2 in)
25 years
67.8 mm (2.7 in)
50 years
78.4 mm (3.1 in)
Longer than the 40 years of record
100 years
89.9 mm (3.5 in)
Longer than the 40 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, 40 years of values from 1944 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: 94.5 mm (3.7 in) in 1976; 60.6 mm (2.4 in) in 1980; 60.5 mm (2.4 in) in 1970.
Download the Data
Data for Fort McMurray A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fort McMurray 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.