Record envelope, standing records and threshold days for Whitehead (CA008206300), Nova Scotia, Canada, with 78 years of record.
Key Facts for Whitehead
Whitehead (CA008206300) is a weather station in Nova Scotia, Canada at 45.22 latitude and -61.18 longitude, 14 m (46 ft) above sea level.
The station reports from 1883 to 1960, 78 years of record.
1,464 records set at Whitehead still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Whitehead set a daily record high minimum temperature of 10.6 C (51.1 F) on 19 June 1960.
About the Station
Location: Nova Scotia, Canada, 45.22 latitude, -61.18 longitude.
Elevation: 14 m (46 ft).
Period of record: 1883 to 1960, 78 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 Whitehead. 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 Whitehead, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Feb
9.4 C (48.9 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
13.3 C (55.9 F)
-20.6 C (-5.1 F)
n/a
n/a
Apr
17.8 C (64.0 F)
-12.8 C (9.0 F)
n/a
n/a
May
22.2 C (72.0 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
26.1 C (79.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
30.0 C (86.0 F)
0.6 C (33.1 F)
n/a
n/a
Aug
29.4 C (84.9 F)
1.7 C (35.1 F)
n/a
n/a
Sep
26.7 C (80.1 F)
-1.7 C (28.9 F)
n/a
n/a
Oct
25.0 C (77.0 F)
-5.6 C (21.9 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-15.0 C (5.0 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-26.7 C (-16.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Whitehead still stand. 1914 holds the most, with 84.
Standing records at Whitehead by the year they were set
Year set
Standing records
1913
1
1914
84
1915
24
1916
40
1917
33
1918
41
1919
54
1920
62
1921
24
1922
32
1923
73
1924
19
1925
37
1926
14
1927
76
1928
29
1929
37
1930
43
1931
42
1932
40
1933
43
1934
32
1935
18
1936
33
1937
29
1938
16
1939
35
1940
10
1941
15
1942
49
1943
27
1944
17
1945
25
1946
25
1947
15
1948
9
1949
13
1950
23
1951
44
1952
23
1953
27
1954
23
1955
15
1956
21
1957
23
1958
23
1959
19
1960
7
All-Time Record Progression
2 new records
2 all-time records were set at Whitehead between 3 March 1916 and 3 March 1916. Each dot is a new record.
When Whitehead set new all-time records
Date
Kind
Detail
1916-03-03
Record daily precipitation
Record daily precipitation 121.9 mm (4.8 in)
1916-03-03
Record daily snowfall
Record daily snowfall 121.9 cm (48.0 in)
Wettest Day of Each Month
Mar: 121.9 mm (4.8 in)
The wettest day on record for each calendar month at Whitehead. The most was 121.9 mm (4.8 in) on 3 March 1916.
Record daily precipitation for each month at Whitehead
Month
Record daily precipitation (mm)
Date
Jan
61.0 mm (2.4 in)
12 January 1894
Feb
51.1 mm (2.0 in)
4 February 1925
Mar
121.9 mm (4.8 in)
3 March 1916
Apr
78.2 mm (3.1 in)
18 April 1889
May
77.0 mm (3.0 in)
21 May 1929
Jun
66.5 mm (2.6 in)
16 June 1899
Jul
55.9 mm (2.2 in)
23 July 1888
Aug
102.6 mm (4.0 in)
26 August 1887
Sep
82.0 mm (3.2 in)
30 September 1947
Oct
104.4 mm (4.1 in)
11 October 1922
Nov
101.6 mm (4.0 in)
10 November 1921
Dec
101.6 mm (4.0 in)
9 December 1919
Period of Record Coverage
1913 to 1960
Complete yearUnder 90 percent of days
48 years of record at Whitehead, 1913 to 1960. 9 years have data for under 90 percent of days and are left out of rankings: 1913, 1917, 1921, 1925, 1926, 1947, 1948, 1949 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Whitehead, 1914 to 1959. Blue stripes are years cooler than the station's own mean of 5.6 C (42.1 F); red stripes are warmer. The coolest year was 1923, at 2.8 C (37.0 F), and the warmest was 1951, at 7.6 C (45.8 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Whitehead as warming stripes, 1914 to 1959
Year
Annual mean temperature
Difference from the station mean
1914
3.6 C
-2.00 C
1915
5.3 C
-0.34 C
1916
4.7 C
-0.95 C
1918
3.3 C
-2.35 C
1919
3.9 C
-1.71 C
1923
2.8 C
-2.84 C
1924
4.5 C
-1.09 C
1927
7.2 C
+1.62 C
1928
6.0 C
+0.35 C
1929
5.8 C
+0.20 C
1930
6.5 C
+0.90 C
1931
7.1 C
+1.45 C
1932
6.2 C
+0.55 C
1933
5.5 C
-0.13 C
1934
5.6 C
0.00 C
1935
5.3 C
-0.30 C
1936
6.0 C
+0.40 C
1937
6.4 C
+0.80 C
1938
5.6 C
+0.03 C
1939
5.3 C
-0.30 C
1940
5.2 C
-0.46 C
1941
4.9 C
-0.76 C
1942
6.5 C
+0.87 C
1943
5.9 C
+0.32 C
1944
6.3 C
+0.65 C
1945
6.5 C
+0.87 C
1946
5.9 C
+0.28 C
1951
7.6 C
+2.03 C
1952
6.6 C
+1.02 C
1954
6.0 C
+0.40 C
1955
5.1 C
-0.50 C
1956
5.7 C
+0.12 C
1958
6.4 C
+0.83 C
1959
5.7 C
+0.05 C
The annual mean temperature here has risen by 0.4 C (0.2 to 0.7) per decade over 1914 to 1959. In Fahrenheit: 0.8 F (0.3 to 1.3) 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 Whitehead
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.4 C (0.2 to 0.7) per decade
0.8 F (0.3 to 1.3) per decade
1914 to 1959
34
Rise
Mean daily maximum
0.6 C (0.3 to 1.0) per decade
1.1 F (0.5 to 1.8) per decade
1914 to 1959
34
Rise
Mean daily minimum
0.27 C (0.05 to 0.48) per decade
0.5 F (0.1 to 0.9) per decade
1914 to 1959
34
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
1883 to 1960
Yearly extremes at Whitehead: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
30.0 C (86.0 F)
1931
24.7 C (76.5 F)
48
Coldest night (TNn)
-28.9 C (-20.0 F)
1927
-20.8 C (-5.5 F)
48
Wettest day (Rx1day)
121.9 mm (4.8 in)
1916
52.2 mm (2.1 in)
78
Wettest five days (Rx5day)
205.5 mm (8.1 in)
1887
73.2 mm (2.9 in)
78
Longest dry spell (CDD)
45 days
1921
17 days
78
Hottest day (TXx)
The hottest day of the year at Whitehead, 1883 to 1960. The record is 30.0 C (86.0 F) in 1931, marked on the chart; the median year is 24.7 C (76.5 F).
Hottest day (TXx) at Whitehead by year
Year
Hottest day (TXx)
1883
n/a
1884
n/a
1885
n/a
1886
n/a
1887
n/a
1888
n/a
1889
n/a
1890
n/a
1891
n/a
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
7.2 C (45.0 F)
1914
23.9 C (75.0 F)
1915
23.9 C (75.0 F)
1916
22.2 C (72.0 F)
1917
22.2 C (72.0 F)
1918
24.4 C (75.9 F)
1919
21.1 C (70.0 F)
1920
22.8 C (73.0 F)
1921
21.1 C (70.0 F)
1922
21.1 C (70.0 F)
1923
18.3 C (64.9 F)
1924
23.3 C (73.9 F)
1925
22.8 C (73.0 F)
1926
26.1 C (79.0 F)
1927
25.6 C (78.1 F)
1928
27.2 C (81.0 F)
1929
25.0 C (77.0 F)
1930
29.4 C (84.9 F)
1931
30.0 C (86.0 F)
1932
26.1 C (79.0 F)
1933
26.7 C (80.1 F)
1934
22.8 C (73.0 F)
1935
25.0 C (77.0 F)
1936
25.0 C (77.0 F)
1937
26.7 C (80.1 F)
1938
25.0 C (77.0 F)
1939
27.2 C (81.0 F)
1940
25.6 C (78.1 F)
1941
22.2 C (72.0 F)
1942
26.1 C (79.0 F)
1943
25.0 C (77.0 F)
1944
25.6 C (78.1 F)
1945
25.6 C (78.1 F)
1946
26.1 C (79.0 F)
1947
23.9 C (75.0 F)
1948
23.9 C (75.0 F)
1949
27.2 C (81.0 F)
1950
22.8 C (73.0 F)
1951
26.7 C (80.1 F)
1952
26.7 C (80.1 F)
1953
26.1 C (79.0 F)
1954
23.3 C (73.9 F)
1955
23.9 C (75.0 F)
1956
24.4 C (75.9 F)
1957
25.0 C (77.0 F)
1958
23.9 C (75.0 F)
1959
24.4 C (75.9 F)
1960
19.4 C (66.9 F)
Coldest night (TNn)
The coldest night of the year at Whitehead, 1883 to 1960. The record is -28.9 C (-20.0 F) in 1927, marked on the chart; the median year is -20.8 C (-5.5 F).
Coldest night (TNn) at Whitehead by year
Year
Coldest night (TNn)
1883
n/a
1884
n/a
1885
n/a
1886
n/a
1887
n/a
1888
n/a
1889
n/a
1890
n/a
1891
n/a
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
-10.0 C (14.0 F)
1914
-24.4 C (-11.9 F)
1915
-21.1 C (-6.0 F)
1916
-20.6 C (-5.1 F)
1917
-20.0 C (-4.0 F)
1918
-22.2 C (-8.0 F)
1919
-22.8 C (-9.0 F)
1920
-25.6 C (-14.1 F)
1921
-17.8 C (0.0 F)
1922
-25.6 C (-14.1 F)
1923
-21.7 C (-7.1 F)
1924
-23.9 C (-11.0 F)
1925
-22.8 C (-9.0 F)
1926
-16.1 C (3.0 F)
1927
-28.9 C (-20.0 F)
1928
-21.7 C (-7.1 F)
1929
-20.0 C (-4.0 F)
1930
-20.6 C (-5.1 F)
1931
-17.2 C (1.0 F)
1932
-18.3 C (-0.9 F)
1933
-26.7 C (-16.1 F)
1934
-23.9 C (-11.0 F)
1935
-21.7 C (-7.1 F)
1936
-20.0 C (-4.0 F)
1937
-17.2 C (1.0 F)
1938
-22.8 C (-9.0 F)
1939
-19.4 C (-2.9 F)
1940
-16.7 C (1.9 F)
1941
-19.4 C (-2.9 F)
1942
-22.8 C (-9.0 F)
1943
-23.3 C (-9.9 F)
1944
-20.6 C (-5.1 F)
1945
-16.7 C (1.9 F)
1946
-21.1 C (-6.0 F)
1947
-20.6 C (-5.1 F)
1948
-23.9 C (-11.0 F)
1949
-16.1 C (3.0 F)
1950
-22.8 C (-9.0 F)
1951
-22.8 C (-9.0 F)
1952
-16.7 C (1.9 F)
1953
-16.7 C (1.9 F)
1954
-20.0 C (-4.0 F)
1955
-23.3 C (-9.9 F)
1956
-18.3 C (-0.9 F)
1957
-16.7 C (1.9 F)
1958
-20.6 C (-5.1 F)
1959
-23.9 C (-11.0 F)
1960
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Whitehead, 1883 to 1960. The record is 121.9 mm (4.8 in) in 1916, marked on the chart; the median year is 52.2 mm (2.1 in).
Wettest day (Rx1day) at Whitehead by year
Year
Wettest day (Rx1day)
1883
17.8 mm (0.7 in)
1884
52.3 mm (2.1 in)
1885
58.4 mm (2.3 in)
1886
35.6 mm (1.4 in)
1887
102.6 mm (4.0 in)
1888
58.4 mm (2.3 in)
1889
78.2 mm (3.1 in)
1890
91.4 mm (3.6 in)
1891
42.4 mm (1.7 in)
1892
88.4 mm (3.5 in)
1893
64.3 mm (2.5 in)
1894
61.0 mm (2.4 in)
1895
43.2 mm (1.7 in)
1896
67.8 mm (2.7 in)
1897
45.7 mm (1.8 in)
1898
54.6 mm (2.1 in)
1899
66.5 mm (2.6 in)
1900
46.2 mm (1.8 in)
1901
42.7 mm (1.7 in)
1902
53.6 mm (2.1 in)
1903
50.8 mm (2.0 in)
1904
48.5 mm (1.9 in)
1905
49.5 mm (1.9 in)
1906
43.9 mm (1.7 in)
1907
38.4 mm (1.5 in)
1908
41.4 mm (1.6 in)
1909
33.8 mm (1.3 in)
1910
38.9 mm (1.5 in)
1911
62.7 mm (2.5 in)
1912
27.9 mm (1.1 in)
1913
51.1 mm (2.0 in)
1914
33.3 mm (1.3 in)
1915
38.4 mm (1.5 in)
1916
121.9 mm (4.8 in)
1917
50.8 mm (2.0 in)
1918
66.0 mm (2.6 in)
1919
101.6 mm (4.0 in)
1920
43.2 mm (1.7 in)
1921
101.6 mm (4.0 in)
1922
104.4 mm (4.1 in)
1923
61.0 mm (2.4 in)
1924
71.1 mm (2.8 in)
1925
51.1 mm (2.0 in)
1926
59.7 mm (2.4 in)
1927
68.6 mm (2.7 in)
1928
39.4 mm (1.6 in)
1929
77.0 mm (3.0 in)
1930
63.5 mm (2.5 in)
1931
48.3 mm (1.9 in)
1932
17.8 mm (0.7 in)
1933
63.5 mm (2.5 in)
1934
38.1 mm (1.5 in)
1935
38.1 mm (1.5 in)
1936
93.7 mm (3.7 in)
1937
49.5 mm (1.9 in)
1938
54.4 mm (2.1 in)
1939
33.0 mm (1.3 in)
1940
28.4 mm (1.1 in)
1941
68.6 mm (2.7 in)
1942
83.1 mm (3.3 in)
1943
61.0 mm (2.4 in)
1944
52.1 mm (2.1 in)
1945
39.4 mm (1.6 in)
1946
34.3 mm (1.4 in)
1947
82.0 mm (3.2 in)
1948
72.4 mm (2.9 in)
1949
80.0 mm (3.1 in)
1950
35.6 mm (1.4 in)
1951
43.4 mm (1.7 in)
1952
34.0 mm (1.3 in)
1953
49.8 mm (2.0 in)
1954
58.7 mm (2.3 in)
1955
76.2 mm (3.0 in)
1956
57.2 mm (2.3 in)
1957
43.2 mm (1.7 in)
1958
64.0 mm (2.5 in)
1959
76.2 mm (3.0 in)
1960
40.6 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Whitehead, 1883 to 1960. The record is 205.5 mm (8.1 in) in 1887, marked on the chart; the median year is 73.2 mm (2.9 in).
Wettest five days (Rx5day) at Whitehead by year
Year
Wettest five days (Rx5day)
1883
46.0 mm (1.8 in)
1884
73.6 mm (2.9 in)
1885
81.8 mm (3.2 in)
1886
53.4 mm (2.1 in)
1887
205.5 mm (8.1 in)
1888
82.8 mm (3.3 in)
1889
99.0 mm (3.9 in)
1890
92.9 mm (3.7 in)
1891
106.2 mm (4.2 in)
1892
168.6 mm (6.6 in)
1893
81.6 mm (3.2 in)
1894
68.6 mm (2.7 in)
1895
71.6 mm (2.8 in)
1896
100.9 mm (4.0 in)
1897
76.7 mm (3.0 in)
1898
93.9 mm (3.7 in)
1899
66.5 mm (2.6 in)
1900
78.1 mm (3.1 in)
1901
72.7 mm (2.9 in)
1902
78.1 mm (3.1 in)
1903
87.9 mm (3.5 in)
1904
55.9 mm (2.2 in)
1905
57.4 mm (2.3 in)
1906
131.5 mm (5.2 in)
1907
56.9 mm (2.2 in)
1908
55.4 mm (2.2 in)
1909
64.1 mm (2.5 in)
1910
79.0 mm (3.1 in)
1911
88.9 mm (3.5 in)
1912
48.2 mm (1.9 in)
1913
58.4 mm (2.3 in)
1914
98.6 mm (3.9 in)
1915
63.5 mm (2.5 in)
1916
121.9 mm (4.8 in)
1917
63.5 mm (2.5 in)
1918
75.5 mm (3.0 in)
1919
101.6 mm (4.0 in)
1920
43.2 mm (1.7 in)
1921
111.8 mm (4.4 in)
1922
128.6 mm (5.1 in)
1923
83.9 mm (3.3 in)
1924
71.1 mm (2.8 in)
1925
51.1 mm (2.0 in)
1926
90.4 mm (3.6 in)
1927
88.4 mm (3.5 in)
1928
66.8 mm (2.6 in)
1929
83.8 mm (3.3 in)
1930
72.6 mm (2.9 in)
1931
58.7 mm (2.3 in)
1932
26.2 mm (1.0 in)
1933
74.9 mm (2.9 in)
1934
58.1 mm (2.3 in)
1935
66.0 mm (2.6 in)
1936
120.4 mm (4.7 in)
1937
49.5 mm (1.9 in)
1938
63.5 mm (2.5 in)
1939
36.6 mm (1.4 in)
1940
48.2 mm (1.9 in)
1941
78.8 mm (3.1 in)
1942
83.1 mm (3.3 in)
1943
61.0 mm (2.4 in)
1944
56.4 mm (2.2 in)
1945
48.5 mm (1.9 in)
1946
57.7 mm (2.3 in)
1947
82.0 mm (3.2 in)
1948
72.4 mm (2.9 in)
1949
92.7 mm (3.6 in)
1950
65.3 mm (2.6 in)
1951
61.5 mm (2.4 in)
1952
64.3 mm (2.5 in)
1953
71.4 mm (2.8 in)
1954
62.2 mm (2.4 in)
1955
88.9 mm (3.5 in)
1956
85.2 mm (3.4 in)
1957
97.0 mm (3.8 in)
1958
112.3 mm (4.4 in)
1959
137.4 mm (5.4 in)
1960
67.6 mm (2.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Whitehead, 1883 to 1960. The record is 45 days in 1921, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Whitehead by year
Year
Longest dry spell (CDD)
1883
6 days
1884
13 days
1885
16 days
1886
19 days
1887
20 days
1888
16 days
1889
26 days
1890
16 days
1891
19 days
1892
17 days
1893
16 days
1894
17 days
1895
24 days
1896
15 days
1897
10 days
1898
12 days
1899
21 days
1900
14 days
1901
18 days
1902
14 days
1903
19 days
1904
28 days
1905
24 days
1906
15 days
1907
14 days
1908
18 days
1909
18 days
1910
16 days
1911
21 days
1912
15 days
1913
18 days
1914
31 days
1915
21 days
1916
28 days
1917
22 days
1918
36 days
1919
25 days
1920
26 days
1921
45 days
1922
34 days
1923
16 days
1924
32 days
1925
26 days
1926
11 days
1927
17 days
1928
13 days
1929
13 days
1930
19 days
1931
20 days
1932
16 days
1933
16 days
1934
17 days
1935
16 days
1936
14 days
1937
18 days
1938
16 days
1939
28 days
1940
12 days
1941
15 days
1942
20 days
1943
21 days
1944
21 days
1945
22 days
1946
29 days
1947
25 days
1948
12 days
1949
20 days
1950
16 days
1951
13 days
1952
15 days
1953
15 days
1954
14 days
1955
15 days
1956
15 days
1957
19 days
1958
17 days
1959
15 days
1960
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 Whitehead falls on 20 May and the median first autumn frost on 28 October, which leaves a median of 161 days between them.
Fitted over all years, the growing season changes by -2.1 days per decade at this station.
Frost dates and growing season at Whitehead
Measure
Median, all years
Earliest period
Recent period (1919 to 1959)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
18 May
n/a
-2.6 days per decade
First autumn frost
28 October
n/a
27 October
n/a
-4.7 days per decade
Growing days
161 days
n/a
159 days
n/a
-2.1 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
37 years, 1890 to 1959
A day with at least 54.3 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 128.9 mm (5.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Whitehead: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
54.3 mm (2.1 in)
5 years
72.7 mm (2.9 in)
10 years
85.5 mm (3.4 in)
25 years
102.4 mm (4.0 in)
50 years
115.5 mm (4.5 in)
Longer than the 37 years of record
100 years
128.9 mm (5.1 in)
Longer than the 37 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, 37 years of values from 1890 to 1959.
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: 121.9 mm (4.8 in) in 1916; 93.7 mm (3.7 in) in 1936; 91.4 mm (3.6 in) in 1890.
Download the Data
Data for Whitehead standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Whitehead 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.