Record envelope, standing records and threshold days for Rumford (USC00177330), Maine, United States, with 61 years of record.
Key Facts for Rumford
Rumford (USC00177330) is a weather station in Maine, United States at 44.55 latitude and -70.55 longitude, 154 m (505 ft) above sea level.
The station reports from 1899 to 1959, 61 years of record.
1,464 records set at Rumford still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Rumford tied a daily record low minimum temperature of -5.0 C (23.0 F) on 22 April 1959.
About the Station
Location: Maine, United States, 44.55 latitude, -70.55 longitude.
Elevation: 154 m (505 ft).
Period of record: 1899 to 1959, 61 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
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 Rumford. 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 Rumford, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-36.1 C (-33.0 F)
n/a
n/a
Feb
14.4 C (57.9 F)
-35.0 C (-31.0 F)
n/a
n/a
Mar
26.1 C (79.0 F)
-27.2 C (-17.0 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-16.7 C (1.9 F)
n/a
n/a
May
36.1 C (97.0 F)
-4.4 C (24.1 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
38.3 C (100.9 F)
2.2 C (36.0 F)
n/a
n/a
Aug
36.7 C (98.1 F)
2.2 C (36.0 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-20.6 C (-5.1 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-32.8 C (-27.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rumford still stand. 1903 holds the most, with 38.
Standing records at Rumford by the year they were set
Year set
Standing records
1899
27
1900
23
1901
26
1902
29
1903
38
1904
30
1905
23
1906
28
1907
30
1908
33
1909
18
1910
26
1911
34
1912
28
1913
23
1914
32
1915
16
1916
27
1917
23
1918
36
1919
29
1920
17
1921
23
1922
16
1923
28
1924
15
1925
29
1926
17
1927
21
1928
16
1929
25
1930
21
1931
19
1932
13
1933
27
1934
29
1935
10
1936
28
1937
15
1938
33
1939
17
1940
17
1941
19
1942
26
1943
30
1944
26
1945
28
1946
29
1947
32
1948
24
1949
28
1950
23
1951
15
1952
10
1953
36
1954
20
1955
27
1956
32
1957
26
1958
14
1959
4
All-Time Record Progression
2 new records
2 all-time records were set at Rumford between 16 September 1932 and 29 December 1933. Each dot is a new record.
When Rumford set new all-time records
Date
Kind
Detail
1932-09-16
Record daily precipitation
Record daily precipitation 135.6 mm (5.3 in)
1933-12-29
Record low maximum temperature
Record low maximum temperature -24.4 C (-11.9 F)
Wettest Day of Each Month
Sep: 135.6 mm (5.3 in)
The wettest day on record for each calendar month at Rumford. The most was 135.6 mm (5.3 in) on 16 September 1932.
Record daily precipitation for each month at Rumford
Month
Record daily precipitation (mm)
Date
Jan
62.0 mm (2.4 in)
25 January 1938
Feb
59.2 mm (2.3 in)
7 February 1951
Mar
128.8 mm (5.1 in)
12 March 1936
Apr
69.9 mm (2.8 in)
12 April 1934
May
87.6 mm (3.4 in)
17 May 1916
Jun
106.9 mm (4.2 in)
15 June 1942
Jul
92.2 mm (3.6 in)
8 July 1915
Aug
76.2 mm (3.0 in)
24 August 1933
Sep
135.6 mm (5.3 in)
16 September 1932
Oct
66.3 mm (2.6 in)
20 October 1937
Nov
108.0 mm (4.3 in)
26 November 1950
Dec
80.3 mm (3.2 in)
14 December 1920
Period of Record Coverage
1899 to 1959
Complete yearUnder 90 percent of days
61 years of record at Rumford, 1899 to 1959. 1 years have data for under 90 percent of days and are left out of rankings: 1959.
Cooler than the station meanWarmer than the station mean
One stripe for each of 60 complete years at Rumford, 1899 to 1958. Blue stripes are years cooler than the station's own mean of 6.3 C (43.3 F); red stripes are warmer. The coolest year was 1904, at 4.7 C (40.5 F), and the warmest was 1953, at 8.0 C (46.5 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Rumford as warming stripes, 1899 to 1958
Year
Annual mean temperature
Difference from the station mean
1899
5.7 C
-0.65 C
1900
5.9 C
-0.40 C
1901
5.8 C
-0.55 C
1902
5.3 C
-0.96 C
1903
6.4 C
+0.14 C
1904
4.7 C
-1.58 C
1905
5.7 C
-0.58 C
1906
6.2 C
-0.13 C
1907
5.2 C
-1.11 C
1908
6.6 C
+0.27 C
1909
6.1 C
-0.16 C
1910
6.6 C
+0.27 C
1911
6.2 C
-0.08 C
1912
5.6 C
-0.68 C
1913
7.1 C
+0.76 C
1914
5.5 C
-0.82 C
1915
7.1 C
+0.77 C
1916
6.2 C
-0.14 C
1917
4.9 C
-1.38 C
1918
6.0 C
-0.26 C
1919
6.8 C
+0.46 C
1920
6.5 C
+0.16 C
1921
7.3 C
+0.99 C
1922
6.3 C
+0.04 C
1923
5.8 C
-0.47 C
1924
5.9 C
-0.42 C
1925
6.1 C
-0.25 C
1926
5.3 C
-1.01 C
1927
7.1 C
+0.76 C
1928
6.1 C
-0.17 C
1929
6.1 C
-0.25 C
1930
6.3 C
+0.02 C
1931
7.4 C
+1.05 C
1932
6.7 C
+0.37 C
1933
6.0 C
-0.31 C
1934
5.3 C
-1.03 C
1935
5.2 C
-1.06 C
1936
5.7 C
-0.58 C
1937
6.7 C
+0.42 C
1938
7.1 C
+0.76 C
1939
5.9 C
-0.43 C
1940
5.7 C
-0.62 C
1941
7.0 C
+0.65 C
1942
6.7 C
+0.40 C
1943
5.7 C
-0.59 C
1944
6.0 C
-0.34 C
1945
6.5 C
+0.22 C
1946
6.8 C
+0.53 C
1947
7.0 C
+0.67 C
1948
6.7 C
+0.41 C
1949
7.8 C
+1.49 C
1950
6.6 C
+0.26 C
1951
7.0 C
+0.65 C
1952
7.5 C
+1.21 C
1953
8.0 C
+1.74 C
1954
6.6 C
+0.32 C
1955
7.0 C
+0.70 C
1956
6.2 C
-0.06 C
1957
7.3 C
+0.95 C
1958
6.1 C
-0.17 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1899 to 1958. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 60 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Rumford
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.3 F (0.2 to 0.5) per decade
1899 to 1958
60
Rise
Mean daily maximum
0.4 C (0.3 to 0.5) per decade
0.7 F (0.5 to 0.8) per decade
1899 to 1958
60
Rise
Mean daily minimum
0.02 C (-0.10 to 0.14) per decade
0.03 F (-0.18 to 0.25) per decade
1899 to 1958
60
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
1899 to 1959
Yearly extremes at Rumford: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1911
33.9 C (93.0 F)
61
Coldest night (TNn)
-36.1 C (-33.0 F)
1907
-26.7 C (-16.1 F)
61
Wettest day (Rx1day)
135.6 mm (5.3 in)
1932
55.9 mm (2.2 in)
61
Wettest five days (Rx5day)
171.7 mm (6.8 in)
1932
91.2 mm (3.6 in)
61
Longest dry spell (CDD)
39 days
1905
17 days
61
Hottest day (TXx)
The hottest day of the year at Rumford, 1899 to 1959. The record is 38.3 C (100.9 F) in 1911, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Rumford by year
Year
Hottest day (TXx)
1899
35.6 C (96.1 F)
1900
33.9 C (93.0 F)
1901
36.7 C (98.1 F)
1902
31.7 C (89.1 F)
1903
34.4 C (93.9 F)
1904
32.2 C (90.0 F)
1905
32.8 C (91.0 F)
1906
34.4 C (93.9 F)
1907
35.6 C (96.1 F)
1908
36.1 C (97.0 F)
1909
33.3 C (91.9 F)
1910
35.0 C (95.0 F)
1911
38.3 C (100.9 F)
1912
35.6 C (96.1 F)
1913
35.0 C (95.0 F)
1914
32.2 C (90.0 F)
1915
32.2 C (90.0 F)
1916
33.3 C (91.9 F)
1917
33.9 C (93.0 F)
1918
33.9 C (93.0 F)
1919
36.7 C (98.1 F)
1920
32.2 C (90.0 F)
1921
35.6 C (96.1 F)
1922
32.2 C (90.0 F)
1923
33.9 C (93.0 F)
1924
33.3 C (91.9 F)
1925
33.3 C (91.9 F)
1926
36.1 C (97.0 F)
1927
32.8 C (91.0 F)
1928
33.3 C (91.9 F)
1929
34.4 C (93.9 F)
1930
32.2 C (90.0 F)
1931
33.9 C (93.0 F)
1932
32.8 C (91.0 F)
1933
33.9 C (93.0 F)
1934
32.8 C (91.0 F)
1935
33.9 C (93.0 F)
1936
32.8 C (91.0 F)
1937
35.6 C (96.1 F)
1938
35.6 C (96.1 F)
1939
35.0 C (95.0 F)
1940
32.8 C (91.0 F)
1941
35.6 C (96.1 F)
1942
33.3 C (91.9 F)
1943
34.4 C (93.9 F)
1944
36.7 C (98.1 F)
1945
33.9 C (93.0 F)
1946
35.6 C (96.1 F)
1947
35.6 C (96.1 F)
1948
36.7 C (98.1 F)
1949
35.0 C (95.0 F)
1950
33.9 C (93.0 F)
1951
32.2 C (90.0 F)
1952
36.7 C (98.1 F)
1953
35.6 C (96.1 F)
1954
32.8 C (91.0 F)
1955
36.7 C (98.1 F)
1956
34.4 C (93.9 F)
1957
33.9 C (93.0 F)
1958
32.8 C (91.0 F)
1959
21.1 C (70.0 F)
Coldest night (TNn)
The coldest night of the year at Rumford, 1899 to 1959. The record is -36.1 C (-33.0 F) in 1907, marked on the chart; the median year is -26.7 C (-16.1 F).
Coldest night (TNn) at Rumford by year
Year
Coldest night (TNn)
1899
-27.8 C (-18.0 F)
1900
-30.6 C (-23.1 F)
1901
-27.2 C (-17.0 F)
1902
-28.3 C (-18.9 F)
1903
-28.9 C (-20.0 F)
1904
-28.9 C (-20.0 F)
1905
-32.2 C (-26.0 F)
1906
-27.2 C (-17.0 F)
1907
-36.1 C (-33.0 F)
1908
-25.6 C (-14.1 F)
1909
-27.8 C (-18.0 F)
1910
-24.4 C (-11.9 F)
1911
-26.7 C (-16.1 F)
1912
-29.4 C (-20.9 F)
1913
-22.2 C (-8.0 F)
1914
-30.0 C (-22.0 F)
1915
-24.4 C (-11.9 F)
1916
-24.4 C (-11.9 F)
1917
-28.9 C (-20.0 F)
1918
-31.1 C (-24.0 F)
1919
-25.0 C (-13.0 F)
1920
-29.4 C (-20.9 F)
1921
-22.8 C (-9.0 F)
1922
-28.3 C (-18.9 F)
1923
-28.9 C (-20.0 F)
1924
-28.9 C (-20.0 F)
1925
-30.0 C (-22.0 F)
1926
-23.3 C (-9.9 F)
1927
-24.4 C (-11.9 F)
1928
-23.9 C (-11.0 F)
1929
-26.7 C (-16.1 F)
1930
-26.7 C (-16.1 F)
1931
-25.0 C (-13.0 F)
1932
-23.3 C (-9.9 F)
1933
-32.8 C (-27.0 F)
1934
-31.1 C (-24.0 F)
1935
-26.1 C (-15.0 F)
1936
-28.9 C (-20.0 F)
1937
-21.7 C (-7.1 F)
1938
-27.2 C (-17.0 F)
1939
-24.4 C (-11.9 F)
1940
-27.2 C (-17.0 F)
1941
-24.4 C (-11.9 F)
1942
-28.9 C (-20.0 F)
1943
-35.0 C (-31.0 F)
1944
-26.7 C (-16.1 F)
1945
-26.1 C (-15.0 F)
1946
-26.1 C (-15.0 F)
1947
-23.3 C (-9.9 F)
1948
-27.8 C (-18.0 F)
1949
-25.0 C (-13.0 F)
1950
-26.1 C (-15.0 F)
1951
-30.6 C (-23.1 F)
1952
-26.1 C (-15.0 F)
1953
-20.0 C (-4.0 F)
1954
-24.4 C (-11.9 F)
1955
-25.6 C (-14.1 F)
1956
-22.8 C (-9.0 F)
1957
-32.2 C (-26.0 F)
1958
-25.6 C (-14.1 F)
1959
-25.0 C (-13.0 F)
Wettest day (Rx1day)
The wettest day of the year at Rumford, 1899 to 1959. The record is 135.6 mm (5.3 in) in 1932, marked on the chart; the median year is 55.9 mm (2.2 in).
Wettest day (Rx1day) at Rumford by year
Year
Wettest day (Rx1day)
1899
43.2 mm (1.7 in)
1900
66.8 mm (2.6 in)
1901
55.9 mm (2.2 in)
1902
48.5 mm (1.9 in)
1903
69.6 mm (2.7 in)
1904
51.6 mm (2.0 in)
1905
48.3 mm (1.9 in)
1906
58.2 mm (2.3 in)
1907
45.2 mm (1.8 in)
1908
38.9 mm (1.5 in)
1909
62.2 mm (2.4 in)
1910
55.4 mm (2.2 in)
1911
44.7 mm (1.8 in)
1912
48.3 mm (1.9 in)
1913
67.3 mm (2.6 in)
1914
68.6 mm (2.7 in)
1915
92.2 mm (3.6 in)
1916
87.6 mm (3.4 in)
1917
74.2 mm (2.9 in)
1918
68.8 mm (2.7 in)
1919
40.6 mm (1.6 in)
1920
80.3 mm (3.2 in)
1921
40.9 mm (1.6 in)
1922
65.8 mm (2.6 in)
1923
50.8 mm (2.0 in)
1924
127.8 mm (5.0 in)
1925
83.8 mm (3.3 in)
1926
45.7 mm (1.8 in)
1927
87.1 mm (3.4 in)
1928
30.7 mm (1.2 in)
1929
29.7 mm (1.2 in)
1930
49.8 mm (2.0 in)
1931
52.6 mm (2.1 in)
1932
135.6 mm (5.3 in)
1933
76.2 mm (3.0 in)
1934
69.9 mm (2.8 in)
1935
46.7 mm (1.8 in)
1936
128.8 mm (5.1 in)
1937
66.3 mm (2.6 in)
1938
62.0 mm (2.4 in)
1939
49.5 mm (1.9 in)
1940
36.1 mm (1.4 in)
1941
47.2 mm (1.9 in)
1942
106.9 mm (4.2 in)
1943
66.5 mm (2.6 in)
1944
55.6 mm (2.2 in)
1945
60.7 mm (2.4 in)
1946
95.8 mm (3.8 in)
1947
50.3 mm (2.0 in)
1948
49.8 mm (2.0 in)
1949
45.7 mm (1.8 in)
1950
108.0 mm (4.3 in)
1951
76.2 mm (3.0 in)
1952
58.7 mm (2.3 in)
1953
63.2 mm (2.5 in)
1954
79.8 mm (3.1 in)
1955
48.8 mm (1.9 in)
1956
44.2 mm (1.7 in)
1957
47.0 mm (1.9 in)
1958
35.3 mm (1.4 in)
1959
29.2 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rumford, 1899 to 1959. The record is 171.7 mm (6.8 in) in 1932, marked on the chart; the median year is 91.2 mm (3.6 in).
Wettest five days (Rx5day) at Rumford by year
Year
Wettest five days (Rx5day)
1899
59.2 mm (2.3 in)
1900
121.2 mm (4.8 in)
1901
107.2 mm (4.2 in)
1902
98.7 mm (3.9 in)
1903
112.5 mm (4.4 in)
1904
66.2 mm (2.6 in)
1905
80.8 mm (3.2 in)
1906
68.8 mm (2.7 in)
1907
88.7 mm (3.5 in)
1908
63.7 mm (2.5 in)
1909
122.4 mm (4.8 in)
1910
57.4 mm (2.3 in)
1911
82.3 mm (3.2 in)
1912
82.9 mm (3.3 in)
1913
90.4 mm (3.6 in)
1914
91.7 mm (3.6 in)
1915
114.3 mm (4.5 in)
1916
104.6 mm (4.1 in)
1917
116.1 mm (4.6 in)
1918
78.4 mm (3.1 in)
1919
72.6 mm (2.9 in)
1920
114.4 mm (4.5 in)
1921
67.1 mm (2.6 in)
1922
120.4 mm (4.7 in)
1923
112.2 mm (4.4 in)
1924
148.1 mm (5.8 in)
1925
136.7 mm (5.4 in)
1926
65.5 mm (2.6 in)
1927
96.8 mm (3.8 in)
1928
59.0 mm (2.3 in)
1929
58.9 mm (2.3 in)
1930
70.6 mm (2.8 in)
1931
91.2 mm (3.6 in)
1932
171.7 mm (6.8 in)
1933
94.7 mm (3.7 in)
1934
83.0 mm (3.3 in)
1935
59.7 mm (2.4 in)
1936
159.3 mm (6.3 in)
1937
124.5 mm (4.9 in)
1938
89.9 mm (3.5 in)
1939
62.1 mm (2.4 in)
1940
62.3 mm (2.5 in)
1941
53.3 mm (2.1 in)
1942
171.5 mm (6.8 in)
1943
131.9 mm (5.2 in)
1944
73.6 mm (2.9 in)
1945
91.7 mm (3.6 in)
1946
99.6 mm (3.9 in)
1947
91.6 mm (3.6 in)
1948
84.1 mm (3.3 in)
1949
86.4 mm (3.4 in)
1950
122.7 mm (4.8 in)
1951
116.3 mm (4.6 in)
1952
82.6 mm (3.3 in)
1953
147.3 mm (5.8 in)
1954
146.3 mm (5.8 in)
1955
95.3 mm (3.8 in)
1956
88.4 mm (3.5 in)
1957
65.0 mm (2.6 in)
1958
93.7 mm (3.7 in)
1959
47.0 mm (1.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rumford, 1899 to 1959. The record is 39 days in 1905, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Rumford by year
Year
Longest dry spell (CDD)
1899
19 days
1900
25 days
1901
26 days
1902
13 days
1903
34 days
1904
17 days
1905
39 days
1906
12 days
1907
17 days
1908
20 days
1909
14 days
1910
16 days
1911
27 days
1912
18 days
1913
17 days
1914
22 days
1915
17 days
1916
12 days
1917
18 days
1918
25 days
1919
20 days
1920
15 days
1921
14 days
1922
15 days
1923
17 days
1924
34 days
1925
15 days
1926
16 days
1927
21 days
1928
18 days
1929
13 days
1930
17 days
1931
14 days
1932
19 days
1933
13 days
1934
18 days
1935
15 days
1936
13 days
1937
20 days
1938
15 days
1939
25 days
1940
17 days
1941
20 days
1942
16 days
1943
16 days
1944
18 days
1945
17 days
1946
18 days
1947
38 days
1948
37 days
1949
13 days
1950
17 days
1951
15 days
1952
14 days
1953
15 days
1954
14 days
1955
27 days
1956
16 days
1957
16 days
1958
14 days
1959
17 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
60 years with a frost
Across 60 years with a frost, the median last spring frost at Rumford falls on 13 May and the median first autumn frost on 29 September, which leaves a median of 140 days between them.
In 1929 to 1958 the median growing season was 132 days. That is 15 days fewer than in 1899 to 1928.
Fitted over all years, the growing season changes by -1.6 days per decade at this station.
Frost dates and growing season at Rumford
Measure
Median, all years
Earliest period (1899 to 1928)
Recent period (1929 to 1958)
Recent against earliest
Fitted trend
Last spring frost
13 May
8 May
16 May
8 days later
+1.1 days per decade
First autumn frost
29 September
2 October
26 September
6 days earlier
-0.6 days per decade
Growing days
140 days
147 days
132 days
15 days fewer
-1.6 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
60 years, 1899 to 1958
A day with at least 57.5 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 152.8 mm (6.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Rumford: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
57.5 mm (2.3 in)
5 years
77.7 mm (3.1 in)
10 years
92.9 mm (3.7 in)
25 years
114.7 mm (4.5 in)
50 years
132.9 mm (5.2 in)
100 years
152.8 mm (6.0 in)
Longer than the 60 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, 60 years of values from 1899 to 1958.
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: 135.6 mm (5.3 in) in 1932; 128.8 mm (5.1 in) in 1936; 127.8 mm (5.0 in) in 1924.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Rumford, at 1928 and 1938. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1928 ran 0.5 C (1.0 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1938 ran 0.4 C (0.7 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Rumford, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1928
-0.5
-1.0
likely
5
1938
+0.4
+0.7
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Rumford standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rumford 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.