Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Rapide Blanc. 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 Rapide Blanc, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.8 C (55.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Feb
11.1 C (52.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Mar
17.8 C (64.0 F)
-43.9 C (-47.0 F)
n/a
n/a
Apr
26.7 C (80.1 F)
-27.2 C (-17.0 F)
n/a
n/a
May
33.3 C (91.9 F)
-11.7 C (10.9 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
35.0 C (95.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
36.1 C (97.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
31.1 C (88.0 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-12.2 C (10.0 F)
n/a
n/a
Nov
18.3 C (64.9 F)
-30.0 C (-22.0 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-44.4 C (-47.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rapide Blanc still stand. 1933 holds the most, with 73.
Standing records at Rapide Blanc by the year they were set
Year set
Standing records
1931
40
1932
51
1933
73
1934
45
1935
37
1936
32
1937
41
1938
28
1939
20
1940
26
1941
20
1942
28
1943
42
1944
22
1945
44
1946
34
1947
58
1948
23
1949
51
1950
61
1951
51
1952
22
1953
41
1954
36
1955
22
1956
36
1957
30
1958
12
1959
19
1960
15
1961
29
1962
23
1963
26
1964
35
1965
31
1966
39
1967
24
1968
30
1969
13
1970
33
1971
26
1972
34
1973
29
1974
32
All-Time Record Progression
5 new records
5 all-time records were set at Rapide Blanc between 17 November 1965 and 21 June 1972. Each dot is a new record.
When Rapide Blanc set new all-time records
Date
Kind
Detail
1965-11-17
Record daily snowfall
Record daily snowfall 45.7 cm (18.0 in)
1970-02-10
Record daily snowfall
Record daily snowfall 47.0 cm (18.5 in)
1971-02-03
Record low minimum temperature
Record low minimum temperature -45.0 C (-49.0 F)
1972-03-22
Record daily snowfall
Record daily snowfall 48.3 cm (19.0 in)
1972-06-21
Record daily precipitation
Record daily precipitation 122.4 mm (4.8 in)
Wettest Day of Each Month
Jun: 122.4 mm (4.8 in)
The wettest day on record for each calendar month at Rapide Blanc. The most was 122.4 mm (4.8 in) on 21 June 1972.
Record daily precipitation for each month at Rapide Blanc
Month
Record daily precipitation (mm)
Date
Jan
31.8 mm (1.3 in)
16 January 1959
Feb
47.0 mm (1.9 in)
10 February 1970
Mar
48.3 mm (1.9 in)
22 March 1972
Apr
31.8 mm (1.3 in)
27 April 1938
May
48.8 mm (1.9 in)
30 May 1972
Jun
122.4 mm (4.8 in)
21 June 1972
Jul
64.0 mm (2.5 in)
19 July 1949
Aug
102.1 mm (4.0 in)
27 August 1932
Sep
52.1 mm (2.1 in)
25 September 1936
Oct
54.4 mm (2.1 in)
18 October 1967
Nov
45.7 mm (1.8 in)
17 November 1965
Dec
47.8 mm (1.9 in)
11 December 1969
Period of Record Coverage
1931 to 1974
Complete yearUnder 90 percent of days
44 years of record at Rapide Blanc, 1931 to 1974. 1 years have data for under 90 percent of days and are left out of rankings: 1974.
Cooler than the station meanWarmer than the station mean
One stripe for each of 40 complete years at Rapide Blanc, 1931 to 1973. Blue stripes are years cooler than the station's own mean of 1.9 C (35.5 F); red stripes are warmer. The coolest year was 1972, at -0.2 C (31.7 F), and the warmest was 1953, at 3.5 C (38.2 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Rapide Blanc as warming stripes, 1931 to 1973
Year
Annual mean temperature
Difference from the station mean
1931
3.2 C
+1.28 C
1932
1.7 C
-0.24 C
1933
1.5 C
-0.40 C
1934
0.6 C
-1.36 C
1935
-0.1 C
-2.06 C
1936
0.8 C
-1.14 C
1937
2.9 C
+0.99 C
1938
2.2 C
+0.29 C
1939
1.4 C
-0.59 C
1940
1.9 C
-0.04 C
1941
2.7 C
+0.75 C
1942
2.5 C
+0.58 C
1943
0.6 C
-1.36 C
1944
2.0 C
+0.02 C
1945
2.3 C
+0.34 C
1946
2.3 C
+0.36 C
1947
2.5 C
+0.56 C
1948
2.5 C
+0.52 C
1949
2.1 C
+0.13 C
1952
3.2 C
+1.26 C
1953
3.5 C
+1.53 C
1954
1.8 C
-0.13 C
1955
2.4 C
+0.41 C
1956
1.0 C
-0.95 C
1957
2.0 C
+0.04 C
1958
1.6 C
-0.38 C
1959
1.7 C
-0.26 C
1960
2.9 C
+0.98 C
1961
2.7 C
+0.76 C
1963
1.6 C
-0.33 C
1964
2.1 C
+0.14 C
1965
1.0 C
-0.91 C
1966
3.0 C
+1.02 C
1967
1.5 C
-0.40 C
1968
1.9 C
-0.03 C
1969
2.5 C
+0.60 C
1970
1.4 C
-0.50 C
1971
1.6 C
-0.30 C
1972
-0.2 C
-2.13 C
1973
2.9 C
+0.97 C
The fitted trend in annual mean temperature here over 1931 to 1973 is 0.03 C (-0.19 to 0.25) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.35 to 0.44) 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 Rapide Blanc
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.03 C (-0.19 to 0.25) per decade
0.05 F (-0.35 to 0.44) per decade
1931 to 1973
40
Not clearly different from zero
Mean daily maximum
-0.3 C (-0.5 to -0.1) per decade
-0.5 F (-1.0 to -0.1) per decade
1931 to 1973
40
Fall
Mean daily minimum
0.4 C (0.1 to 0.6) per decade
0.6 F (0.2 to 1.1) per decade
1931 to 1973
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
1931 to 1974
Yearly extremes at Rapide Blanc: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.7 C (98.1 F)
1947
32.5 C (90.5 F)
44
Coldest night (TNn)
-45.0 C (-49.0 F)
1971
-40.3 C (-40.5 F)
44
Wettest day (Rx1day)
122.4 mm (4.8 in)
1972
42.3 mm (1.7 in)
44
Wettest five days (Rx5day)
144.8 mm (5.7 in)
1972
65.1 mm (2.6 in)
44
Longest dry spell (CDD)
27 days
1961
13 days
44
Hottest day (TXx)
The hottest day of the year at Rapide Blanc, 1931 to 1974. The record is 36.7 C (98.1 F) in 1947, marked on the chart; the median year is 32.5 C (90.5 F).
Hottest day (TXx) at Rapide Blanc by year
Year
Hottest day (TXx)
1931
34.4 C (93.9 F)
1932
33.3 C (91.9 F)
1933
33.3 C (91.9 F)
1934
32.8 C (91.0 F)
1935
33.3 C (91.9 F)
1936
30.0 C (86.0 F)
1937
34.4 C (93.9 F)
1938
35.6 C (96.1 F)
1939
32.8 C (91.0 F)
1940
31.1 C (88.0 F)
1941
33.3 C (91.9 F)
1942
31.7 C (89.1 F)
1943
33.9 C (93.0 F)
1944
35.6 C (96.1 F)
1945
36.1 C (97.0 F)
1946
32.8 C (91.0 F)
1947
36.7 C (98.1 F)
1948
33.3 C (91.9 F)
1949
33.9 C (93.0 F)
1950
31.7 C (89.1 F)
1951
32.2 C (90.0 F)
1952
34.4 C (93.9 F)
1953
33.9 C (93.0 F)
1954
30.0 C (86.0 F)
1955
35.0 C (95.0 F)
1956
33.3 C (91.9 F)
1957
31.1 C (88.0 F)
1958
35.0 C (95.0 F)
1959
35.0 C (95.0 F)
1960
30.6 C (87.1 F)
1961
30.0 C (86.0 F)
1962
30.0 C (86.0 F)
1963
31.7 C (89.1 F)
1964
31.1 C (88.0 F)
1965
30.6 C (87.1 F)
1966
30.0 C (86.0 F)
1967
31.1 C (88.0 F)
1968
31.1 C (88.0 F)
1969
31.1 C (88.0 F)
1970
30.6 C (87.1 F)
1971
28.9 C (84.0 F)
1972
29.4 C (84.9 F)
1973
29.4 C (84.9 F)
1974
30.0 C (86.0 F)
Coldest night (TNn)
The coldest night of the year at Rapide Blanc, 1931 to 1974. The record is -45.0 C (-49.0 F) in 1971, marked on the chart; the median year is -40.3 C (-40.5 F).
Coldest night (TNn) at Rapide Blanc by year
Year
Coldest night (TNn)
1931
-40.0 C (-40.0 F)
1932
-40.0 C (-40.0 F)
1933
-44.4 C (-47.9 F)
1934
-43.3 C (-45.9 F)
1935
-44.4 C (-47.9 F)
1936
-36.1 C (-33.0 F)
1937
-36.7 C (-34.1 F)
1938
-41.7 C (-43.1 F)
1939
-37.8 C (-36.0 F)
1940
-36.7 C (-34.1 F)
1941
-38.9 C (-38.0 F)
1942
-38.9 C (-38.0 F)
1943
-43.9 C (-47.0 F)
1944
-41.7 C (-43.1 F)
1945
-40.0 C (-40.0 F)
1946
-39.4 C (-38.9 F)
1947
-36.7 C (-34.1 F)
1948
-37.8 C (-36.0 F)
1949
-38.3 C (-36.9 F)
1950
-38.3 C (-36.9 F)
1951
-40.6 C (-41.1 F)
1952
-40.6 C (-41.1 F)
1953
-35.6 C (-32.1 F)
1954
-42.2 C (-44.0 F)
1955
-41.7 C (-43.1 F)
1956
-36.7 C (-34.1 F)
1957
-43.9 C (-47.0 F)
1958
-36.7 C (-34.1 F)
1959
-38.9 C (-38.0 F)
1960
-39.4 C (-38.9 F)
1961
-38.3 C (-36.9 F)
1962
-43.9 C (-47.0 F)
1963
-40.0 C (-40.0 F)
1964
-40.6 C (-41.1 F)
1965
-40.6 C (-41.1 F)
1966
-43.9 C (-47.0 F)
1967
-42.8 C (-45.0 F)
1968
-40.6 C (-41.1 F)
1969
-32.2 C (-26.0 F)
1970
-43.3 C (-45.9 F)
1971
-45.0 C (-49.0 F)
1972
-42.8 C (-45.0 F)
1973
-43.9 C (-47.0 F)
1974
-45.0 C (-49.0 F)
Wettest day (Rx1day)
The wettest day of the year at Rapide Blanc, 1931 to 1974. The record is 122.4 mm (4.8 in) in 1972, marked on the chart; the median year is 42.3 mm (1.7 in).
Wettest day (Rx1day) at Rapide Blanc by year
Year
Wettest day (Rx1day)
1931
30.5 mm (1.2 in)
1932
102.1 mm (4.0 in)
1933
50.8 mm (2.0 in)
1934
30.5 mm (1.2 in)
1935
41.1 mm (1.6 in)
1936
52.1 mm (2.1 in)
1937
29.2 mm (1.1 in)
1938
31.8 mm (1.3 in)
1939
54.1 mm (2.1 in)
1940
30.0 mm (1.2 in)
1941
48.3 mm (1.9 in)
1942
40.9 mm (1.6 in)
1943
46.0 mm (1.8 in)
1944
43.2 mm (1.7 in)
1945
51.1 mm (2.0 in)
1946
50.8 mm (2.0 in)
1947
30.5 mm (1.2 in)
1948
33.5 mm (1.3 in)
1949
64.0 mm (2.5 in)
1950
35.8 mm (1.4 in)
1951
34.5 mm (1.4 in)
1952
62.5 mm (2.5 in)
1953
40.6 mm (1.6 in)
1954
38.1 mm (1.5 in)
1955
49.3 mm (1.9 in)
1956
35.6 mm (1.4 in)
1957
62.0 mm (2.4 in)
1958
47.2 mm (1.9 in)
1959
56.6 mm (2.2 in)
1960
34.8 mm (1.4 in)
1961
31.2 mm (1.2 in)
1962
28.4 mm (1.1 in)
1963
40.4 mm (1.6 in)
1964
48.8 mm (1.9 in)
1965
45.7 mm (1.8 in)
1966
33.0 mm (1.3 in)
1967
54.4 mm (2.1 in)
1968
35.6 mm (1.4 in)
1969
47.8 mm (1.9 in)
1970
51.6 mm (2.0 in)
1971
41.4 mm (1.6 in)
1972
122.4 mm (4.8 in)
1973
39.1 mm (1.5 in)
1974
52.3 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rapide Blanc, 1931 to 1974. The record is 144.8 mm (5.7 in) in 1972, marked on the chart; the median year is 65.1 mm (2.6 in).
Wettest five days (Rx5day) at Rapide Blanc by year
Year
Wettest five days (Rx5day)
1931
60.2 mm (2.4 in)
1932
135.2 mm (5.3 in)
1933
91.4 mm (3.6 in)
1934
64.2 mm (2.5 in)
1935
65.1 mm (2.6 in)
1936
72.5 mm (2.9 in)
1937
56.7 mm (2.2 in)
1938
75.5 mm (3.0 in)
1939
81.0 mm (3.2 in)
1940
55.9 mm (2.2 in)
1941
108.7 mm (4.3 in)
1942
49.8 mm (2.0 in)
1943
59.0 mm (2.3 in)
1944
63.2 mm (2.5 in)
1945
57.2 mm (2.3 in)
1946
87.6 mm (3.4 in)
1947
69.9 mm (2.8 in)
1948
47.3 mm (1.9 in)
1949
68.1 mm (2.7 in)
1950
54.1 mm (2.1 in)
1951
56.0 mm (2.2 in)
1952
86.7 mm (3.4 in)
1953
59.3 mm (2.3 in)
1954
76.0 mm (3.0 in)
1955
104.4 mm (4.1 in)
1956
58.7 mm (2.3 in)
1957
115.1 mm (4.5 in)
1958
84.8 mm (3.3 in)
1959
65.0 mm (2.6 in)
1960
53.6 mm (2.1 in)
1961
64.0 mm (2.5 in)
1962
41.9 mm (1.6 in)
1963
70.5 mm (2.8 in)
1964
59.7 mm (2.4 in)
1965
64.0 mm (2.5 in)
1966
63.4 mm (2.5 in)
1967
104.2 mm (4.1 in)
1968
70.6 mm (2.8 in)
1969
62.0 mm (2.4 in)
1970
96.0 mm (3.8 in)
1971
64.5 mm (2.5 in)
1972
144.8 mm (5.7 in)
1973
93.2 mm (3.7 in)
1974
78.5 mm (3.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rapide Blanc, 1931 to 1974. The record is 27 days in 1961, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Rapide Blanc by year
Year
Longest dry spell (CDD)
1931
17 days
1932
11 days
1933
15 days
1934
10 days
1935
18 days
1936
8 days
1937
16 days
1938
12 days
1939
21 days
1940
13 days
1941
11 days
1942
13 days
1943
13 days
1944
12 days
1945
10 days
1946
11 days
1947
21 days
1948
12 days
1949
18 days
1950
16 days
1951
14 days
1952
13 days
1953
20 days
1954
11 days
1955
16 days
1956
11 days
1957
18 days
1958
13 days
1959
11 days
1960
14 days
1961
27 days
1962
13 days
1963
13 days
1964
14 days
1965
19 days
1966
14 days
1967
11 days
1968
16 days
1969
15 days
1970
12 days
1971
11 days
1972
15 days
1973
11 days
1974
9 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 Rapide Blanc falls on 29 May and the median first autumn frost on 16 September, which leaves a median of 112 days between them.
Fitted over all years, the growing season changes by +0.8 days per decade at this station.
Frost dates and growing season at Rapide Blanc
Measure
Median, all years
Earliest period
Recent period (1941 to 1973)
Recent against earliest
Fitted trend
Last spring frost
29 May
n/a
30 May
n/a
+0.2 days per decade
First autumn frost
16 September
n/a
16 September
n/a
+1.0 days per decade
Growing days
112 days
n/a
112 days
n/a
+0.8 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
42 years, 1932 to 1973
A day with at least 41.9 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 114.2 mm (4.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Rapide Blanc: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
41.9 mm (1.6 in)
5 years
55.0 mm (2.2 in)
10 years
65.8 mm (2.6 in)
25 years
82.3 mm (3.2 in)
50 years
97.0 mm (3.8 in)
Longer than the 42 years of record
100 years
114.2 mm (4.5 in)
Longer than the 42 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, 42 years of values from 1932 to 1973.
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: 122.4 mm (4.8 in) in 1972; 102.1 mm (4.0 in) in 1932; 64.0 mm (2.5 in) in 1949.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Rapide Blanc standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rapide Blanc 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.