Record envelope, standing records and threshold days for Grand Falls (CA008101900), New Brunswick, Canada, with 54 years of record.
Key Facts for Grand Falls
Grand Falls (CA008101900) is a weather station in New Brunswick, Canada at 47.05 latitude and -67.73 longitude, 152 m (499 ft) above sea level.
The station reports from 1913 to 1966, 54 years of record.
1,464 records set at Grand Falls still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Grand Falls tied a daily record high minimum temperature of 0.6 C (33.1 F) on 5 March 1966.
About the Station
Location: New Brunswick, Canada, 47.05 latitude, -67.73 longitude.
Elevation: 152 m (499 ft).
Period of record: 1913 to 1966, 54 years.
Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Grand Falls. 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 Grand Falls, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.1 C (52.0 F)
-43.3 C (-45.9 F)
n/a
n/a
Feb
15.0 C (59.0 F)
-43.3 C (-45.9 F)
n/a
n/a
Mar
21.7 C (71.1 F)
-36.7 C (-34.1 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-20.6 C (-5.1 F)
n/a
n/a
May
35.6 C (96.1 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
33.9 C (93.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
36.7 C (98.1 F)
3.3 C (37.9 F)
n/a
n/a
Aug
35.6 C (96.1 F)
0.0 C (32.0 F)
n/a
n/a
Sep
31.7 C (89.1 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Grand Falls still stand. 1923 holds the most, with 63.
Standing records at Grand Falls by the year they were set
Year set
Standing records
1913
14
1914
20
1915
30
1916
54
1917
12
1918
27
1920
36
1921
37
1922
38
1923
63
1924
21
1925
31
1926
22
1927
32
1928
19
1929
16
1930
31
1931
26
1932
31
1933
49
1934
54
1935
20
1936
40
1937
24
1938
30
1939
18
1940
24
1941
15
1942
35
1943
29
1944
34
1945
34
1946
27
1947
38
1948
31
1949
39
1950
34
1951
23
1952
10
1953
24
1954
27
1955
23
1956
30
1957
32
1958
20
1959
26
1960
14
1961
15
1962
19
1963
13
1964
31
1965
20
1966
2
All-Time Record Progression
3 new records
3 all-time records were set at Grand Falls between 12 February 1952 and 11 September 1954. Each dot is a new record.
When Grand Falls set new all-time records
Date
Kind
Detail
1952-02-12
Record daily snowfall
Record daily snowfall 71.1 cm (28.0 in)
1952-07-15
Record high minimum temperature
Record high minimum temperature 25.0 C (77.0 F)
1954-09-11
Record daily precipitation
Record daily precipitation 159.0 mm (6.3 in)
Wettest Day of Each Month
Sep: 159.0 mm (6.3 in)
The wettest day on record for each calendar month at Grand Falls. The most was 159.0 mm (6.3 in) on 11 September 1954.
Record daily precipitation for each month at Grand Falls
Month
Record daily precipitation (mm)
Date
Jan
51.6 mm (2.0 in)
11 January 1924
Feb
79.8 mm (3.1 in)
16 February 1915
Mar
41.9 mm (1.6 in)
7 March 1922
Apr
49.0 mm (1.9 in)
17 April 1953
May
67.8 mm (2.7 in)
17 May 1941
Jun
69.3 mm (2.7 in)
16 June 1942
Jul
68.8 mm (2.7 in)
22 July 1931
Aug
54.9 mm (2.2 in)
13 August 1939
Sep
159.0 mm (6.3 in)
11 September 1954
Oct
92.2 mm (3.6 in)
1 October 1920
Nov
63.5 mm (2.5 in)
5 November 1950
Dec
57.7 mm (2.3 in)
11 December 1950
Period of Record Coverage
1913 to 1966
Complete yearUnder 90 percent of days
53 years of record at Grand Falls, 1913 to 1966. 10 years have data for under 90 percent of days and are left out of rankings: 1913, 1914, 1916, 1917, 1918, 1923, 1926, 1963 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 33 complete years at Grand Falls, 1925 to 1962. Blue stripes are years cooler than the station's own mean of 3.7 C (38.7 F); red stripes are warmer. The coolest year was 1934, at 2.4 C (36.3 F), and the warmest was 1931, at 5.0 C (40.9 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Grand Falls as warming stripes, 1925 to 1962
Year
Annual mean temperature
Difference from the station mean
1925
2.6 C
-1.11 C
1929
2.7 C
-1.06 C
1930
3.6 C
-0.08 C
1931
5.0 C
+1.26 C
1932
4.2 C
+0.44 C
1933
2.8 C
-0.92 C
1934
2.4 C
-1.32 C
1936
3.5 C
-0.24 C
1937
4.9 C
+1.17 C
1938
4.0 C
+0.28 C
1939
2.8 C
-0.89 C
1940
2.9 C
-0.84 C
1941
3.7 C
+0.02 C
1942
4.0 C
+0.30 C
1943
2.7 C
-1.01 C
1944
4.1 C
+0.36 C
1945
4.0 C
+0.24 C
1946
3.9 C
+0.19 C
1947
4.4 C
+0.65 C
1948
3.4 C
-0.28 C
1949
4.4 C
+0.72 C
1950
4.2 C
+0.44 C
1951
4.4 C
+0.68 C
1952
4.6 C
+0.93 C
1954
3.9 C
+0.19 C
1955
3.7 C
-0.02 C
1956
3.2 C
-0.53 C
1957
3.6 C
-0.10 C
1958
3.6 C
-0.08 C
1959
3.9 C
+0.17 C
1960
4.7 C
+1.01 C
1961
3.8 C
+0.13 C
1962
3.0 C
-0.76 C
The fitted trend in annual mean temperature here over 1925 to 1962 is 0.2 C (-0.1 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.3 F (-0.1 to 0.7) 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 Grand Falls
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (-0.1 to 0.4) per decade
0.3 F (-0.1 to 0.7) per decade
1925 to 1962
33
Not clearly different from zero
Mean daily maximum
0.22 C (-0.03 to 0.46) per decade
0.4 F (-0.1 to 0.8) per decade
1925 to 1962
33
Not clearly different from zero
Mean daily minimum
0.1 C (-0.1 to 0.4) per decade
0.2 F (-0.2 to 0.7) per decade
1925 to 1962
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
1913 to 1966
Yearly extremes at Grand Falls: 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)
1916
31.7 C (89.1 F)
53
Coldest night (TNn)
-43.3 C (-45.9 F)
1925
-35.0 C (-31.0 F)
52
Wettest day (Rx1day)
159.0 mm (6.3 in)
1954
46.5 mm (1.8 in)
53
Wettest five days (Rx5day)
164.6 mm (6.5 in)
1954
72.4 mm (2.9 in)
53
Longest dry spell (CDD)
28 days
1926
16 days
53
Hottest day (TXx)
The hottest day of the year at Grand Falls, 1913 to 1966. The record is 36.7 C (98.1 F) in 1916, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Grand Falls by year
Year
Hottest day (TXx)
1913
32.2 C (90.0 F)
1914
30.0 C (86.0 F)
1915
33.3 C (91.9 F)
1916
36.7 C (98.1 F)
1917
26.7 C (80.1 F)
1918
28.9 C (84.0 F)
1920
31.1 C (88.0 F)
1921
33.3 C (91.9 F)
1922
29.4 C (84.9 F)
1923
30.0 C (86.0 F)
1924
29.4 C (84.9 F)
1925
29.4 C (84.9 F)
1926
29.4 C (84.9 F)
1927
28.9 C (84.0 F)
1928
30.6 C (87.1 F)
1929
32.8 C (91.0 F)
1930
32.2 C (90.0 F)
1931
30.0 C (86.0 F)
1932
31.1 C (88.0 F)
1933
28.9 C (84.0 F)
1934
28.9 C (84.0 F)
1935
35.0 C (95.0 F)
1936
29.4 C (84.9 F)
1937
32.2 C (90.0 F)
1938
32.8 C (91.0 F)
1939
31.1 C (88.0 F)
1940
30.6 C (87.1 F)
1941
32.8 C (91.0 F)
1942
32.2 C (90.0 F)
1943
33.3 C (91.9 F)
1944
35.0 C (95.0 F)
1945
31.7 C (89.1 F)
1946
32.8 C (91.0 F)
1947
33.9 C (93.0 F)
1948
32.2 C (90.0 F)
1949
33.9 C (93.0 F)
1950
31.7 C (89.1 F)
1951
31.1 C (88.0 F)
1952
34.4 C (93.9 F)
1953
31.7 C (89.1 F)
1954
28.9 C (84.0 F)
1955
34.4 C (93.9 F)
1956
33.3 C (91.9 F)
1957
31.1 C (88.0 F)
1958
29.4 C (84.9 F)
1959
32.2 C (90.0 F)
1960
35.6 C (96.1 F)
1961
30.6 C (87.1 F)
1962
30.6 C (87.1 F)
1963
32.8 C (91.0 F)
1964
32.8 C (91.0 F)
1965
32.8 C (91.0 F)
1966
11.1 C (52.0 F)
Coldest night (TNn)
The coldest night of the year at Grand Falls, 1913 to 1966. The record is -43.3 C (-45.9 F) in 1925, marked on the chart; the median year is -35.0 C (-31.0 F).
Coldest night (TNn) at Grand Falls by year
Year
Coldest night (TNn)
1913
n/a
1914
-17.8 C (0.0 F)
1915
-33.9 C (-29.0 F)
1916
-32.8 C (-27.0 F)
1917
-27.8 C (-18.0 F)
1918
-38.3 C (-36.9 F)
1920
-40.0 C (-40.0 F)
1921
-33.3 C (-27.9 F)
1922
-39.4 C (-38.9 F)
1923
-38.9 C (-38.0 F)
1924
-33.3 C (-27.9 F)
1925
-43.3 C (-45.9 F)
1926
-32.8 C (-27.0 F)
1927
-32.2 C (-26.0 F)
1928
-35.0 C (-31.0 F)
1929
-36.1 C (-33.0 F)
1930
-36.1 C (-33.0 F)
1931
-37.8 C (-36.0 F)
1932
-35.0 C (-31.0 F)
1933
-37.8 C (-36.0 F)
1934
-40.0 C (-40.0 F)
1935
-42.2 C (-44.0 F)
1936
-30.6 C (-23.1 F)
1937
-37.2 C (-35.0 F)
1938
-36.7 C (-34.1 F)
1939
-32.2 C (-26.0 F)
1940
-35.0 C (-31.0 F)
1941
-34.4 C (-29.9 F)
1942
-33.3 C (-27.9 F)
1943
-35.0 C (-31.0 F)
1944
-34.4 C (-29.9 F)
1945
-36.7 C (-34.1 F)
1946
-38.3 C (-36.9 F)
1947
-33.9 C (-29.0 F)
1948
-40.0 C (-40.0 F)
1949
-35.0 C (-31.0 F)
1950
-33.9 C (-29.0 F)
1951
-36.7 C (-34.1 F)
1952
-37.8 C (-36.0 F)
1953
-26.1 C (-15.0 F)
1954
-34.4 C (-29.9 F)
1955
-43.3 C (-45.9 F)
1956
-31.1 C (-24.0 F)
1957
-40.6 C (-41.1 F)
1958
-35.0 C (-31.0 F)
1959
-32.8 C (-27.0 F)
1960
-34.4 C (-29.9 F)
1961
-37.8 C (-36.0 F)
1962
-38.9 C (-38.0 F)
1963
-38.3 C (-36.9 F)
1964
-32.2 C (-26.0 F)
1965
-30.0 C (-22.0 F)
1966
-24.4 C (-11.9 F)
Wettest day (Rx1day)
The wettest day of the year at Grand Falls, 1913 to 1966. The record is 159.0 mm (6.3 in) in 1954, marked on the chart; the median year is 46.5 mm (1.8 in).
Wettest day (Rx1day) at Grand Falls by year
Year
Wettest day (Rx1day)
1913
37.1 mm (1.5 in)
1914
57.2 mm (2.3 in)
1915
79.8 mm (3.1 in)
1916
76.7 mm (3.0 in)
1917
32.0 mm (1.3 in)
1918
31.5 mm (1.2 in)
1920
92.2 mm (3.6 in)
1921
45.7 mm (1.8 in)
1922
59.2 mm (2.3 in)
1923
34.3 mm (1.4 in)
1924
51.6 mm (2.0 in)
1925
40.6 mm (1.6 in)
1926
34.3 mm (1.4 in)
1927
46.7 mm (1.8 in)
1928
37.3 mm (1.5 in)
1929
37.1 mm (1.5 in)
1930
40.9 mm (1.6 in)
1931
70.9 mm (2.8 in)
1932
56.9 mm (2.2 in)
1933
46.5 mm (1.8 in)
1934
62.5 mm (2.5 in)
1935
40.6 mm (1.6 in)
1936
42.4 mm (1.7 in)
1937
40.6 mm (1.6 in)
1938
49.5 mm (1.9 in)
1939
54.9 mm (2.2 in)
1940
46.5 mm (1.8 in)
1941
67.8 mm (2.7 in)
1942
69.3 mm (2.7 in)
1943
45.7 mm (1.8 in)
1944
61.7 mm (2.4 in)
1945
60.5 mm (2.4 in)
1946
46.5 mm (1.8 in)
1947
40.1 mm (1.6 in)
1948
50.0 mm (2.0 in)
1949
53.1 mm (2.1 in)
1950
63.5 mm (2.5 in)
1951
50.0 mm (2.0 in)
1952
71.1 mm (2.8 in)
1953
49.0 mm (1.9 in)
1954
159.0 mm (6.3 in)
1955
33.0 mm (1.3 in)
1956
30.7 mm (1.2 in)
1957
45.0 mm (1.8 in)
1958
52.6 mm (2.1 in)
1959
41.1 mm (1.6 in)
1960
45.7 mm (1.8 in)
1961
43.9 mm (1.7 in)
1962
41.9 mm (1.6 in)
1963
37.1 mm (1.5 in)
1964
54.6 mm (2.1 in)
1965
25.9 mm (1.0 in)
1966
17.8 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Grand Falls, 1913 to 1966. The record is 164.6 mm (6.5 in) in 1954, marked on the chart; the median year is 72.4 mm (2.9 in).
Wettest five days (Rx5day) at Grand Falls by year
Year
Wettest five days (Rx5day)
1913
54.7 mm (2.2 in)
1914
80.1 mm (3.2 in)
1915
148.4 mm (5.8 in)
1916
129.2 mm (5.1 in)
1917
38.4 mm (1.5 in)
1918
57.2 mm (2.3 in)
1920
117.4 mm (4.6 in)
1921
71.6 mm (2.8 in)
1922
157.5 mm (6.2 in)
1923
54.1 mm (2.1 in)
1924
57.2 mm (2.3 in)
1925
48.0 mm (1.9 in)
1926
59.7 mm (2.4 in)
1927
64.5 mm (2.5 in)
1928
66.8 mm (2.6 in)
1929
57.9 mm (2.3 in)
1930
66.7 mm (2.6 in)
1931
77.3 mm (3.0 in)
1932
72.4 mm (2.9 in)
1933
72.5 mm (2.9 in)
1934
72.4 mm (2.9 in)
1935
57.1 mm (2.2 in)
1936
74.7 mm (2.9 in)
1937
56.3 mm (2.2 in)
1938
77.7 mm (3.1 in)
1939
76.0 mm (3.0 in)
1940
70.4 mm (2.8 in)
1941
140.0 mm (5.5 in)
1942
101.5 mm (4.0 in)
1943
65.0 mm (2.6 in)
1944
119.9 mm (4.7 in)
1945
68.6 mm (2.7 in)
1946
62.4 mm (2.5 in)
1947
75.2 mm (3.0 in)
1948
85.8 mm (3.4 in)
1949
71.4 mm (2.8 in)
1950
81.3 mm (3.2 in)
1951
61.4 mm (2.4 in)
1952
95.7 mm (3.8 in)
1953
100.1 mm (3.9 in)
1954
164.6 mm (6.5 in)
1955
50.8 mm (2.0 in)
1956
52.1 mm (2.1 in)
1957
63.3 mm (2.5 in)
1958
89.9 mm (3.5 in)
1959
85.3 mm (3.4 in)
1960
82.5 mm (3.2 in)
1961
101.5 mm (4.0 in)
1962
59.5 mm (2.3 in)
1963
72.6 mm (2.9 in)
1964
78.4 mm (3.1 in)
1965
43.2 mm (1.7 in)
1966
28.0 mm (1.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Grand Falls, 1913 to 1966. The record is 28 days in 1926, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Grand Falls by year
Year
Longest dry spell (CDD)
1913
18 days
1914
22 days
1915
19 days
1916
18 days
1917
11 days
1918
21 days
1920
22 days
1921
16 days
1922
18 days
1923
20 days
1924
21 days
1925
18 days
1926
28 days
1927
21 days
1928
14 days
1929
13 days
1930
18 days
1931
14 days
1932
19 days
1933
12 days
1934
14 days
1935
16 days
1936
12 days
1937
14 days
1938
14 days
1939
17 days
1940
13 days
1941
16 days
1942
15 days
1943
17 days
1944
25 days
1945
17 days
1946
13 days
1947
26 days
1948
16 days
1949
15 days
1950
18 days
1951
16 days
1952
12 days
1953
15 days
1954
15 days
1955
20 days
1956
16 days
1957
14 days
1958
12 days
1959
12 days
1960
18 days
1961
19 days
1962
15 days
1963
12 days
1964
14 days
1965
12 days
1966
8 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 Grand Falls falls on 22 May and the median first autumn frost on 20 September, which leaves a median of 119 days between them.
Fitted over all years, the growing season changes by +1.8 days per decade at this station.
Frost dates and growing season at Grand Falls
Measure
Median, all years
Earliest period
Recent period (1931 to 1962)
Recent against earliest
Fitted trend
Last spring frost
22 May
n/a
21 May
n/a
-1.7 days per decade
First autumn frost
20 September
n/a
20 September
n/a
+0.1 days per decade
Growing days
119 days
n/a
119 days
n/a
+1.8 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
44 years, 1915 to 1964
A day with at least 47.9 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 133.0 mm (5.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Grand Falls: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
47.9 mm (1.9 in)
5 years
62.3 mm (2.5 in)
10 years
74.5 mm (2.9 in)
25 years
93.8 mm (3.7 in)
50 years
111.6 mm (4.4 in)
Longer than the 44 years of record
100 years
133.0 mm (5.2 in)
Longer than the 44 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, 44 years of values from 1915 to 1964.
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: 159.0 mm (6.3 in) in 1954; 92.2 mm (3.6 in) in 1920; 79.8 mm (3.1 in) in 1915.
Download the Data
Data for Grand Falls standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grand Falls 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.