Record envelope, standing records and threshold days for Rumford 1 SSE (USC00177325), Maine, United States, with 62 years of record.
Key Facts for Rumford 1 SSE
Rumford 1 SSE (USC00177325) is a weather station in Maine, United States at 44.53 latitude and -70.54 longitude, 192 m (630 ft) above sea level.
The station reports from 1948 to 2009, 62 years of record.
1,464 records set at Rumford 1 SSE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Rumford 1 SSE set a daily record snowfall of 55.9 cm (22.0 in) on 23 February 2009.
About the Station
Location: Maine, United States, 44.53 latitude, -70.54 longitude.
Elevation: 192 m (630 ft).
Period of record: 1948 to 2009, 62 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 1 SSE. 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 1 SSE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.1 C (61.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Feb
16.1 C (61.0 F)
-36.7 C (-34.1 F)
n/a
n/a
Mar
27.2 C (81.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-18.3 C (-0.9 F)
n/a
n/a
May
35.6 C (96.1 F)
-5.0 C (23.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
36.7 C (98.1 F)
3.3 C (37.9 F)
n/a
n/a
Aug
37.8 C (100.0 F)
1.1 C (34.0 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-3.9 C (25.0 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-33.9 C (-29.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rumford 1 SSE still stand. 1956 holds the most, with 56.
Standing records at Rumford 1 SSE by the year they were set
Year set
Standing records
1948
25
1949
40
1950
41
1951
35
1952
21
1953
33
1954
32
1955
29
1956
56
1957
33
1958
28
1959
33
1960
14
1961
23
1962
22
1963
32
1964
29
1965
27
1966
24
1967
28
1968
24
1969
18
1970
28
1971
22
1972
18
1973
20
1974
28
1975
19
1976
37
1977
25
1978
11
1979
48
1980
10
1981
32
1982
18
1983
15
1984
21
1985
10
1986
18
1987
24
1988
18
1989
20
1990
26
1991
24
1992
22
1993
20
1994
25
1995
19
1996
19
1997
4
1998
14
1999
21
2000
11
2001
17
2002
26
2003
27
2004
19
2005
16
2006
11
2007
29
2008
22
2009
3
All-Time Record Progression
4 new records
4 all-time records were set at Rumford 1 SSE between 31 March 1987 and 18 July 2005. Each dot is a new record.
When Rumford 1 SSE set new all-time records
Date
Kind
Detail
1987-03-31
Record daily precipitation
Record daily precipitation 112.3 mm (4.4 in)
1994-01-20
Record low minimum temperature
Record low minimum temperature -37.8 C (-36.0 F)
2004-01-15
Record low maximum temperature
Record low maximum temperature -22.8 C (-9.0 F)
2005-07-18
Record high minimum temperature
Record high minimum temperature 22.8 C (73.0 F)
Wettest Day of Each Month
Mar: 112.3 mm (4.4 in)
The wettest day on record for each calendar month at Rumford 1 SSE. The most was 112.3 mm (4.4 in) on 31 March 1987.
Record daily precipitation for each month at Rumford 1 SSE
Month
Record daily precipitation (mm)
Date
Jan
83.1 mm (3.3 in)
9 January 1978
Feb
63.8 mm (2.5 in)
7 February 1951
Mar
112.3 mm (4.4 in)
31 March 1987
Apr
73.9 mm (2.9 in)
3 April 2005
May
72.6 mm (2.9 in)
13 May 2006
Jun
98.8 mm (3.9 in)
14 June 1998
Jul
61.0 mm (2.4 in)
8 July 1994
Aug
88.1 mm (3.5 in)
5 August 1989
Sep
108.5 mm (4.3 in)
12 September 1960
Oct
90.7 mm (3.6 in)
29 October 2006
Nov
93.7 mm (3.7 in)
26 November 1950
Dec
97.8 mm (3.9 in)
27 December 1969
Period of Record Coverage
1948 to 2009
Complete yearUnder 90 percent of days
62 years of record at Rumford 1 SSE, 1948 to 2009. 7 years have data for under 90 percent of days and are left out of rankings: 1948, 1962, 1995, 2000, 2001, 2002, 2009.
Cooler than the station meanWarmer than the station mean
One stripe for each of 52 complete years at Rumford 1 SSE, 1949 to 2008. 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 1956, at 4.7 C (40.5 F), and the warmest was 1998, at 8.5 C (47.2 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Rumford 1 SSE as warming stripes, 1949 to 2008
Year
Annual mean temperature
Difference from the station mean
1949
6.4 C
+0.07 C
1950
5.3 C
-0.97 C
1951
5.6 C
-0.70 C
1952
6.2 C
-0.07 C
1953
6.6 C
+0.35 C
1955
5.6 C
-0.73 C
1956
4.7 C
-1.57 C
1957
5.7 C
-0.57 C
1958
4.8 C
-1.49 C
1959
5.9 C
-0.34 C
1960
5.7 C
-0.58 C
1961
5.9 C
-0.34 C
1963
5.6 C
-0.72 C
1964
6.0 C
-0.31 C
1965
5.7 C
-0.58 C
1966
6.3 C
-0.01 C
1967
5.5 C
-0.74 C
1968
5.9 C
-0.40 C
1969
6.5 C
+0.18 C
1970
6.3 C
+0.01 C
1971
6.2 C
-0.12 C
1972
5.2 C
-1.05 C
1973
7.4 C
+1.14 C
1974
6.1 C
-0.20 C
1975
6.7 C
+0.42 C
1976
5.8 C
-0.45 C
1977
6.6 C
+0.29 C
1978
5.7 C
-0.61 C
1979
7.0 C
+0.71 C
1980
6.0 C
-0.24 C
1981
7.3 C
+0.98 C
1982
6.1 C
-0.16 C
1983
7.3 C
+0.98 C
1984
7.0 C
+0.75 C
1985
6.3 C
+0.06 C
1986
6.4 C
+0.09 C
1987
7.1 C
+0.79 C
1988
6.4 C
+0.11 C
1989
6.0 C
-0.31 C
1990
7.6 C
+1.30 C
1991
7.0 C
+0.72 C
1993
6.5 C
+0.17 C
1994
6.7 C
+0.39 C
1996
6.7 C
+0.46 C
1997
6.4 C
+0.13 C
1998
8.5 C
+2.17 C
2003
5.8 C
-0.50 C
2004
5.8 C
-0.51 C
2005
6.6 C
+0.27 C
2006
7.7 C
+1.44 C
2007
6.1 C
-0.15 C
2008
6.6 C
+0.33 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1949 to 2008. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Rumford 1 SSE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1949 to 2008
52
Rise
Mean daily maximum
0.09 C (-0.01 to 0.19) per decade
0.16 F (-0.02 to 0.34) per decade
1949 to 2008
52
Not clearly different from zero
Mean daily minimum
0.3 C (0.2 to 0.5) per decade
0.6 F (0.4 to 0.9) per decade
1949 to 2008
52
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
1948 to 2009
Yearly extremes at Rumford 1 SSE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1975
33.9 C (93.0 F)
62
Coldest night (TNn)
-37.8 C (-36.0 F)
1994
-28.0 C (-18.5 F)
62
Wettest day (Rx1day)
112.3 mm (4.4 in)
1987
61.9 mm (2.4 in)
62
Wettest five days (Rx5day)
221.0 mm (8.7 in)
1998
102.0 mm (4.0 in)
62
Longest dry spell (CDD)
27 days
1948
15 days
62
Hottest day (TXx)
The hottest day of the year at Rumford 1 SSE, 1948 to 2009. The record is 37.8 C (100.0 F) in 1975, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Rumford 1 SSE by year
Year
Hottest day (TXx)
1948
34.4 C (93.9 F)
1949
33.9 C (93.0 F)
1950
32.2 C (90.0 F)
1951
31.1 C (88.0 F)
1952
35.6 C (96.1 F)
1953
33.9 C (93.0 F)
1954
32.8 C (91.0 F)
1955
33.9 C (93.0 F)
1956
32.8 C (91.0 F)
1957
31.1 C (88.0 F)
1958
31.1 C (88.0 F)
1959
32.8 C (91.0 F)
1960
32.2 C (90.0 F)
1961
31.7 C (89.1 F)
1962
34.4 C (93.9 F)
1963
35.0 C (95.0 F)
1964
32.8 C (91.0 F)
1965
33.9 C (93.0 F)
1966
32.8 C (91.0 F)
1967
31.7 C (89.1 F)
1968
32.2 C (90.0 F)
1969
33.3 C (91.9 F)
1970
33.9 C (93.0 F)
1971
34.4 C (93.9 F)
1972
31.7 C (89.1 F)
1973
35.0 C (95.0 F)
1974
32.8 C (91.0 F)
1975
37.8 C (100.0 F)
1976
34.4 C (93.9 F)
1977
36.7 C (98.1 F)
1978
35.0 C (95.0 F)
1979
33.9 C (93.0 F)
1980
32.2 C (90.0 F)
1981
34.4 C (93.9 F)
1982
33.3 C (91.9 F)
1983
33.9 C (93.0 F)
1984
33.9 C (93.0 F)
1985
32.2 C (90.0 F)
1986
32.8 C (91.0 F)
1987
33.3 C (91.9 F)
1988
35.6 C (96.1 F)
1989
35.0 C (95.0 F)
1990
33.3 C (91.9 F)
1991
36.1 C (97.0 F)
1992
35.0 C (95.0 F)
1993
35.0 C (95.0 F)
1994
36.7 C (98.1 F)
1995
36.7 C (98.1 F)
1996
32.8 C (91.0 F)
1997
32.8 C (91.0 F)
1998
33.3 C (91.9 F)
1999
35.6 C (96.1 F)
2000
32.2 C (90.0 F)
2001
36.7 C (98.1 F)
2002
35.0 C (95.0 F)
2003
35.0 C (95.0 F)
2004
32.2 C (90.0 F)
2005
33.3 C (91.9 F)
2006
32.8 C (91.0 F)
2007
34.4 C (93.9 F)
2008
35.0 C (95.0 F)
2009
13.3 C (55.9 F)
Coldest night (TNn)
The coldest night of the year at Rumford 1 SSE, 1948 to 2009. The record is -37.8 C (-36.0 F) in 1994, marked on the chart; the median year is -28.0 C (-18.5 F).
Coldest night (TNn) at Rumford 1 SSE by year
Year
Coldest night (TNn)
1948
-19.4 C (-2.9 F)
1949
-28.3 C (-18.9 F)
1950
-28.9 C (-20.0 F)
1951
-33.9 C (-29.0 F)
1952
-28.9 C (-20.0 F)
1953
-24.4 C (-11.9 F)
1954
-27.8 C (-18.0 F)
1955
-28.9 C (-20.0 F)
1956
-26.7 C (-16.1 F)
1957
-36.7 C (-34.1 F)
1958
-30.6 C (-23.1 F)
1959
-27.2 C (-17.0 F)
1960
-28.3 C (-18.9 F)
1961
-32.2 C (-26.0 F)
1962
-36.7 C (-34.1 F)
1963
-28.9 C (-20.0 F)
1964
-26.1 C (-15.0 F)
1965
-28.9 C (-20.0 F)
1966
-27.2 C (-17.0 F)
1967
-30.6 C (-23.1 F)
1968
-27.2 C (-17.0 F)
1969
-27.2 C (-17.0 F)
1970
-26.1 C (-15.0 F)
1971
-31.7 C (-25.1 F)
1972
-30.6 C (-23.1 F)
1973
-25.6 C (-14.1 F)
1974
-27.8 C (-18.0 F)
1975
-29.4 C (-20.9 F)
1976
-30.0 C (-22.0 F)
1977
-25.0 C (-13.0 F)
1978
-26.1 C (-15.0 F)
1979
-27.2 C (-17.0 F)
1980
-27.2 C (-17.0 F)
1981
-29.4 C (-20.9 F)
1982
-30.6 C (-23.1 F)
1983
-23.3 C (-9.9 F)
1984
-33.3 C (-27.9 F)
1985
-28.9 C (-20.0 F)
1986
-23.3 C (-9.9 F)
1987
-26.7 C (-16.1 F)
1988
-28.9 C (-20.0 F)
1989
-28.3 C (-18.9 F)
1990
-24.4 C (-11.9 F)
1991
-27.2 C (-17.0 F)
1992
-23.9 C (-11.0 F)
1993
-32.2 C (-26.0 F)
1994
-37.8 C (-36.0 F)
1995
-26.7 C (-16.1 F)
1996
-28.3 C (-18.9 F)
1997
-27.2 C (-17.0 F)
1998
-23.3 C (-9.9 F)
1999
-31.1 C (-24.0 F)
2000
-25.6 C (-14.1 F)
2001
-22.2 C (-8.0 F)
2002
-18.9 C (-2.0 F)
2003
-30.6 C (-23.1 F)
2004
-27.8 C (-18.0 F)
2005
-29.4 C (-20.9 F)
2006
-18.9 C (-2.0 F)
2007
-25.6 C (-14.1 F)
2008
-28.9 C (-20.0 F)
2009
-34.4 C (-29.9 F)
Wettest day (Rx1day)
The wettest day of the year at Rumford 1 SSE, 1948 to 2009. The record is 112.3 mm (4.4 in) in 1987, marked on the chart; the median year is 61.9 mm (2.4 in).
Wettest day (Rx1day) at Rumford 1 SSE by year
Year
Wettest day (Rx1day)
1948
53.1 mm (2.1 in)
1949
53.1 mm (2.1 in)
1950
93.7 mm (3.7 in)
1951
78.2 mm (3.1 in)
1952
68.3 mm (2.7 in)
1953
69.9 mm (2.8 in)
1954
80.0 mm (3.1 in)
1955
57.2 mm (2.3 in)
1956
51.1 mm (2.0 in)
1957
43.2 mm (1.7 in)
1958
36.1 mm (1.4 in)
1959
86.4 mm (3.4 in)
1960
108.5 mm (4.3 in)
1961
56.1 mm (2.2 in)
1962
63.2 mm (2.5 in)
1963
83.8 mm (3.3 in)
1964
62.0 mm (2.4 in)
1965
45.7 mm (1.8 in)
1966
73.4 mm (2.9 in)
1967
51.6 mm (2.0 in)
1968
46.7 mm (1.8 in)
1969
97.8 mm (3.9 in)
1970
55.1 mm (2.2 in)
1971
48.5 mm (1.9 in)
1972
51.1 mm (2.0 in)
1973
88.6 mm (3.5 in)
1974
48.5 mm (1.9 in)
1975
51.1 mm (2.0 in)
1976
73.2 mm (2.9 in)
1977
67.1 mm (2.6 in)
1978
83.1 mm (3.3 in)
1979
56.4 mm (2.2 in)
1980
65.8 mm (2.6 in)
1981
85.1 mm (3.4 in)
1982
40.4 mm (1.6 in)
1983
58.2 mm (2.3 in)
1984
46.7 mm (1.8 in)
1985
54.9 mm (2.2 in)
1986
49.0 mm (1.9 in)
1987
112.3 mm (4.4 in)
1988
62.2 mm (2.4 in)
1989
88.1 mm (3.5 in)
1990
73.7 mm (2.9 in)
1991
87.6 mm (3.4 in)
1992
83.3 mm (3.3 in)
1993
60.7 mm (2.4 in)
1994
61.0 mm (2.4 in)
1995
46.2 mm (1.8 in)
1996
61.7 mm (2.4 in)
1997
88.6 mm (3.5 in)
1998
98.8 mm (3.9 in)
1999
91.7 mm (3.6 in)
2000
57.7 mm (2.3 in)
2001
58.2 mm (2.3 in)
2002
52.8 mm (2.1 in)
2003
57.2 mm (2.3 in)
2004
53.3 mm (2.1 in)
2005
73.9 mm (2.9 in)
2006
90.7 mm (3.6 in)
2007
75.2 mm (3.0 in)
2008
91.7 mm (3.6 in)
2009
26.4 mm (1.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rumford 1 SSE, 1948 to 2009. The record is 221.0 mm (8.7 in) in 1998, marked on the chart; the median year is 102.0 mm (4.0 in).
Wettest five days (Rx5day) at Rumford 1 SSE by year
Year
Wettest five days (Rx5day)
1948
90.7 mm (3.6 in)
1949
94.0 mm (3.7 in)
1950
119.8 mm (4.7 in)
1951
121.6 mm (4.8 in)
1952
76.5 mm (3.0 in)
1953
163.9 mm (6.5 in)
1954
143.4 mm (5.6 in)
1955
109.0 mm (4.3 in)
1956
116.9 mm (4.6 in)
1957
67.8 mm (2.7 in)
1958
102.1 mm (4.0 in)
1959
111.3 mm (4.4 in)
1960
130.9 mm (5.2 in)
1961
78.7 mm (3.1 in)
1962
120.3 mm (4.7 in)
1963
190.2 mm (7.5 in)
1964
75.0 mm (3.0 in)
1965
67.9 mm (2.7 in)
1966
119.8 mm (4.7 in)
1967
101.9 mm (4.0 in)
1968
93.2 mm (3.7 in)
1969
145.3 mm (5.7 in)
1970
66.8 mm (2.6 in)
1971
68.6 mm (2.7 in)
1972
69.1 mm (2.7 in)
1973
167.9 mm (6.6 in)
1974
80.3 mm (3.2 in)
1975
72.7 mm (2.9 in)
1976
85.6 mm (3.4 in)
1977
81.0 mm (3.2 in)
1978
99.1 mm (3.9 in)
1979
85.3 mm (3.4 in)
1980
78.7 mm (3.1 in)
1981
137.4 mm (5.4 in)
1982
58.2 mm (2.3 in)
1983
108.4 mm (4.3 in)
1984
134.6 mm (5.3 in)
1985
83.0 mm (3.3 in)
1986
95.8 mm (3.8 in)
1987
150.1 mm (5.9 in)
1988
97.0 mm (3.8 in)
1989
133.7 mm (5.3 in)
1990
129.9 mm (5.1 in)
1991
112.0 mm (4.4 in)
1992
122.9 mm (4.8 in)
1993
74.2 mm (2.9 in)
1994
91.0 mm (3.6 in)
1995
93.2 mm (3.7 in)
1996
117.9 mm (4.6 in)
1997
105.6 mm (4.2 in)
1998
221.0 mm (8.7 in)
1999
113.0 mm (4.4 in)
2000
114.4 mm (4.5 in)
2001
72.2 mm (2.8 in)
2002
85.8 mm (3.4 in)
2003
94.8 mm (3.7 in)
2004
93.7 mm (3.7 in)
2005
118.3 mm (4.7 in)
2006
133.9 mm (5.3 in)
2007
130.8 mm (5.1 in)
2008
127.8 mm (5.0 in)
2009
42.4 mm (1.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rumford 1 SSE, 1948 to 2009. The record is 27 days in 1948, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Rumford 1 SSE by year
Year
Longest dry spell (CDD)
1948
27 days
1949
13 days
1950
14 days
1951
14 days
1952
11 days
1953
17 days
1954
13 days
1955
16 days
1956
14 days
1957
16 days
1958
14 days
1959
14 days
1960
12 days
1961
24 days
1962
12 days
1963
17 days
1964
16 days
1965
13 days
1966
14 days
1967
13 days
1968
19 days
1969
16 days
1970
25 days
1971
14 days
1972
11 days
1973
15 days
1974
13 days
1975
13 days
1976
22 days
1977
12 days
1978
24 days
1979
23 days
1980
23 days
1981
25 days
1982
17 days
1983
16 days
1984
15 days
1985
15 days
1986
13 days
1987
19 days
1988
14 days
1989
11 days
1990
16 days
1991
11 days
1992
13 days
1993
10 days
1994
11 days
1995
15 days
1996
14 days
1997
21 days
1998
13 days
1999
17 days
2000
11 days
2001
16 days
2002
18 days
2003
16 days
2004
15 days
2005
15 days
2006
18 days
2007
14 days
2008
12 days
2009
13 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
52 years with a frost
Across 52 years with a frost, the median last spring frost at Rumford 1 SSE falls on 14 May and the median first autumn frost on 5 October, which leaves a median of 141 days between them.
Fitted over all years, the growing season changes by +7.1 days per decade at this station.
Frost dates and growing season at Rumford 1 SSE
Measure
Median, all years
Earliest period
Recent period (1973 to 2008)
Recent against earliest
Fitted trend
Last spring frost
14 May
n/a
9 May
n/a
-3.1 days per decade
First autumn frost
5 October
n/a
6 October
n/a
+4.1 days per decade
Growing days
141 days
n/a
149 days
n/a
+7.1 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
56 years, 1949 to 2008
A day with at least 66.4 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 121.5 mm (4.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Rumford 1 SSE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
66.4 mm (2.6 in)
5 years
83.6 mm (3.3 in)
10 years
93.9 mm (3.7 in)
25 years
105.9 mm (4.2 in)
50 years
114.0 mm (4.5 in)
100 years
121.5 mm (4.8 in)
Longer than the 56 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, 56 years of values from 1949 to 2008.
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: 112.3 mm (4.4 in) in 1987; 108.5 mm (4.3 in) in 1960; 98.8 mm (3.9 in) in 1998.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Rumford 1 SSE, at 1993 and 2003. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1993 ran 0.3 C (0.5 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 2003 ran 0.7 C (1.3 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Rumford 1 SSE, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1993
+0.3
+0.5
likely
5
2003
-0.7
-1.3
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 1 SSE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rumford 1 SSE 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.