Record envelope, standing records and threshold days for Stamford 5 N (USC00067970), Connecticut, United States, with 68 years of record.
Key Facts for Stamford 5 N
Stamford 5 N (USC00067970) is a weather station in Connecticut, United States at 41.12 latitude and -73.55 longitude, 58 m (190 ft) above sea level.
The station reports from 1955 to 2022, 68 years of record.
1,464 records set at Stamford 5 N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Stamford 5 N tied a daily record high minimum temperature of 11.1 C (52.0 F) on 25 April 2022.
About the Station
Location: Connecticut, United States, 41.12 latitude, -73.55 longitude.
Elevation: 58 m (190 ft).
Period of record: 1955 to 2022, 68 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 Stamford 5 N. 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 Stamford 5 N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.6 C (69.1 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
23.3 C (73.9 F)
-26.1 C (-15.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-21.1 C (-6.0 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-8.9 C (16.0 F)
n/a
n/a
May
36.1 C (97.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
36.1 C (97.0 F)
1.7 C (35.1 F)
n/a
n/a
Jul
38.9 C (102.0 F)
6.1 C (43.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
2.8 C (37.0 F)
n/a
n/a
Sep
36.1 C (97.0 F)
-2.2 C (28.0 F)
n/a
n/a
Oct
32.8 C (91.0 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-13.9 C (7.0 F)
n/a
n/a
Dec
24.4 C (75.9 F)
-25.0 C (-13.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Stamford 5 N still stand. 2015 holds the most, with 50.
Standing records at Stamford 5 N by the year they were set
Year set
Standing records
1955
3
1956
39
1957
31
1958
22
1959
20
1960
28
1961
28
1962
33
1963
33
1964
32
1965
31
1966
16
1967
38
1968
21
1969
11
1970
19
1971
20
1972
22
1973
19
1974
27
1975
17
1976
35
1977
25
1978
16
1979
40
1980
20
1981
22
1982
25
1983
25
1984
29
1985
16
1986
19
1987
19
1988
21
1989
17
1990
37
1991
25
1992
16
1993
19
1994
12
1995
24
1996
25
1997
15
1998
20
1999
28
2000
27
2001
27
2002
31
2003
16
2004
10
2005
12
2006
7
2007
13
2010
8
2012
3
2013
18
2014
19
2015
50
2016
35
2017
31
2018
27
2019
21
2020
24
2021
17
2022
8
All-Time Record Progression
4 new records
4 all-time records were set at Stamford 5 N between 22 July 1994 and 17 February 2003. Each dot is a new record.
When Stamford 5 N set new all-time records
Date
Kind
Detail
1994-07-22
Record high minimum temperature
Record high minimum temperature 25.0 C (77.0 F)
1995-07-15
Record high maximum temperature
Record high maximum temperature 38.9 C (102.0 F)
2001-08-09
Record high maximum temperature
Record high maximum temperature 40.0 C (104.0 F)
2003-02-17
Record daily snowfall
Record daily snowfall 45.7 cm (18.0 in)
Wettest Day of Each Month
Jun: 155.4 mm (6.1 in)
The wettest day on record for each calendar month at Stamford 5 N. The most was 155.4 mm (6.1 in) on 19 June 1972.
Record daily precipitation for each month at Stamford 5 N
Month
Record daily precipitation (mm)
Date
Jan
104.6 mm (4.1 in)
21 January 1979
Feb
71.6 mm (2.8 in)
20 February 1981
Mar
96.5 mm (3.8 in)
14 March 2010
Apr
104.1 mm (4.1 in)
15 April 2007
May
115.1 mm (4.5 in)
29 May 1968
Jun
155.4 mm (6.1 in)
19 June 1972
Jul
102.6 mm (4.0 in)
13 July 1996
Aug
91.9 mm (3.6 in)
19 August 1991
Sep
127.5 mm (5.0 in)
16 September 1999
Oct
105.7 mm (4.2 in)
7 October 1972
Nov
85.3 mm (3.4 in)
8 November 1977
Dec
76.7 mm (3.0 in)
3 December 1986
Period of Record Coverage
1955 to 2022
Complete yearUnder 90 percent of days
66 years of record at Stamford 5 N, 1955 to 2022. 10 years have data for under 90 percent of days and are left out of rankings: 1955, 2005, 2006, 2007, 2008, 2010, 2012, 2018 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 52 complete years at Stamford 5 N, 1956 to 2019. Blue stripes are years cooler than the station's own mean of 10.7 C (51.3 F); red stripes are warmer. The coolest year was 1958, at 9.3 C (48.7 F), and the warmest was 1998, at 12.3 C (54.2 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Stamford 5 N as warming stripes, 1956 to 2019
Year
Annual mean temperature
Difference from the station mean
1956
9.6 C
-1.08 C
1957
10.6 C
-0.12 C
1958
9.3 C
-1.42 C
1959
10.8 C
+0.10 C
1960
10.0 C
-0.75 C
1961
10.1 C
-0.63 C
1962
9.5 C
-1.26 C
1963
9.6 C
-1.17 C
1964
10.1 C
-0.60 C
1965
9.6 C
-1.10 C
1966
9.9 C
-0.84 C
1967
9.8 C
-0.94 C
1968
10.0 C
-0.74 C
1969
10.2 C
-0.54 C
1971
10.3 C
-0.41 C
1972
9.8 C
-0.92 C
1973
11.2 C
+0.48 C
1974
10.4 C
-0.35 C
1975
10.8 C
+0.12 C
1976
9.9 C
-0.78 C
1977
10.3 C
-0.44 C
1978
10.1 C
-0.66 C
1979
10.9 C
+0.19 C
1980
10.7 C
+0.00 C
1981
10.7 C
-0.07 C
1982
10.3 C
-0.38 C
1983
11.1 C
+0.41 C
1984
10.9 C
+0.17 C
1985
10.8 C
+0.06 C
1986
10.8 C
+0.11 C
1987
11.0 C
+0.30 C
1988
10.7 C
-0.05 C
1989
10.6 C
-0.16 C
1990
12.0 C
+1.31 C
1991
12.0 C
+1.32 C
1993
10.9 C
+0.15 C
1994
11.0 C
+0.24 C
1995
11.0 C
+0.28 C
1996
10.7 C
-0.04 C
1997
10.9 C
+0.16 C
1998
12.3 C
+1.60 C
1999
11.9 C
+1.14 C
2000
10.9 C
+0.18 C
2001
11.6 C
+0.90 C
2002
12.0 C
+1.23 C
2004
11.4 C
+0.70 C
2013
11.0 C
+0.32 C
2014
10.6 C
-0.14 C
2015
11.2 C
+0.46 C
2016
12.3 C
+1.54 C
2017
12.1 C
+1.33 C
2019
11.5 C
+0.77 C
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1956 to 2019. In Fahrenheit: 0.6 F (0.4 to 0.7) 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 Stamford 5 N
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.2 to 0.4) per decade
0.6 F (0.4 to 0.7) per decade
1956 to 2019
52
Rise
Mean daily maximum
0.3 C (0.2 to 0.4) per decade
0.5 F (0.3 to 0.6) per decade
1956 to 2019
52
Rise
Mean daily minimum
0.4 C (0.3 to 0.5) per decade
0.7 F (0.5 to 0.9) per decade
1956 to 2019
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
1955 to 2022
Yearly extremes at Stamford 5 N: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
2001
35.0 C (95.0 F)
66
Coldest night (TNn)
-27.8 C (-18.0 F)
1961
-19.4 C (-2.9 F)
66
Wettest day (Rx1day)
155.4 mm (6.1 in)
1972
74.4 mm (2.9 in)
65
Wettest five days (Rx5day)
234.2 mm (9.2 in)
1975
100.5 mm (4.0 in)
64
Longest dry spell (CDD)
29 days
2001
18 days
65
Hottest day (TXx)
The hottest day of the year at Stamford 5 N, 1955 to 2022. The record is 40.0 C (104.0 F) in 2001, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Stamford 5 N by year
Year
Hottest day (TXx)
1955
9.4 C (48.9 F)
1956
35.6 C (96.1 F)
1957
37.8 C (100.0 F)
1958
33.3 C (91.9 F)
1959
34.4 C (93.9 F)
1960
31.7 C (89.1 F)
1961
33.9 C (93.0 F)
1962
35.0 C (95.0 F)
1963
35.0 C (95.0 F)
1964
35.0 C (95.0 F)
1965
33.3 C (91.9 F)
1966
36.7 C (98.1 F)
1967
33.3 C (91.9 F)
1968
35.6 C (96.1 F)
1969
34.4 C (93.9 F)
1970
33.9 C (93.0 F)
1971
33.3 C (91.9 F)
1972
33.3 C (91.9 F)
1973
35.0 C (95.0 F)
1974
34.4 C (93.9 F)
1975
35.6 C (96.1 F)
1976
33.3 C (91.9 F)
1977
37.8 C (100.0 F)
1978
35.6 C (96.1 F)
1979
33.9 C (93.0 F)
1980
37.2 C (99.0 F)
1981
35.6 C (96.1 F)
1982
35.6 C (96.1 F)
1983
36.1 C (97.0 F)
1984
35.0 C (95.0 F)
1985
34.4 C (93.9 F)
1986
35.6 C (96.1 F)
1987
35.0 C (95.0 F)
1988
35.6 C (96.1 F)
1989
35.0 C (95.0 F)
1990
33.9 C (93.0 F)
1991
36.7 C (98.1 F)
1992
33.3 C (91.9 F)
1993
37.2 C (99.0 F)
1994
35.0 C (95.0 F)
1995
38.9 C (102.0 F)
1996
36.1 C (97.0 F)
1997
36.1 C (97.0 F)
1998
35.6 C (96.1 F)
1999
38.3 C (100.9 F)
2000
35.6 C (96.1 F)
2001
40.0 C (104.0 F)
2002
36.7 C (98.1 F)
2003
33.9 C (93.0 F)
2004
33.3 C (91.9 F)
2005
35.0 C (95.0 F)
2006
26.1 C (79.0 F)
2007
34.4 C (93.9 F)
2008
30.0 C (86.0 F)
2010
31.7 C (89.1 F)
2012
26.7 C (80.1 F)
2013
37.2 C (99.0 F)
2014
34.4 C (93.9 F)
2015
35.6 C (96.1 F)
2016
36.1 C (97.0 F)
2017
35.0 C (95.0 F)
2018
35.6 C (96.1 F)
2019
36.1 C (97.0 F)
2020
35.6 C (96.1 F)
2021
35.0 C (95.0 F)
2022
23.3 C (73.9 F)
Coldest night (TNn)
The coldest night of the year at Stamford 5 N, 1955 to 2022. The record is -27.8 C (-18.0 F) in 1961, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Stamford 5 N by year
Year
Coldest night (TNn)
1955
-22.8 C (-9.0 F)
1956
-17.2 C (1.0 F)
1957
-26.7 C (-16.1 F)
1958
-20.0 C (-4.0 F)
1959
-17.8 C (0.0 F)
1960
-19.4 C (-2.9 F)
1961
-27.8 C (-18.0 F)
1962
-20.6 C (-5.1 F)
1963
-21.7 C (-7.1 F)
1964
-23.3 C (-9.9 F)
1965
-22.8 C (-9.0 F)
1966
-20.0 C (-4.0 F)
1967
-23.9 C (-11.0 F)
1968
-23.9 C (-11.0 F)
1969
-19.4 C (-2.9 F)
1970
-17.8 C (0.0 F)
1971
-22.2 C (-8.0 F)
1972
-18.3 C (-0.9 F)
1973
-18.3 C (-0.9 F)
1974
-18.9 C (-2.0 F)
1975
-20.0 C (-4.0 F)
1976
-20.0 C (-4.0 F)
1977
-22.8 C (-9.0 F)
1978
-20.0 C (-4.0 F)
1979
-25.6 C (-14.1 F)
1980
-25.0 C (-13.0 F)
1981
-26.7 C (-16.1 F)
1982
-27.8 C (-18.0 F)
1983
-19.4 C (-2.9 F)
1984
-23.3 C (-9.9 F)
1985
-21.1 C (-6.0 F)
1986
-16.7 C (1.9 F)
1987
-20.0 C (-4.0 F)
1988
-23.3 C (-9.9 F)
1989
-17.8 C (0.0 F)
1990
-18.3 C (-0.9 F)
1991
-16.1 C (3.0 F)
1992
-15.0 C (5.0 F)
1993
-17.8 C (0.0 F)
1994
-23.3 C (-9.9 F)
1995
-17.2 C (1.0 F)
1996
-26.1 C (-15.0 F)
1997
-18.3 C (-0.9 F)
1998
-13.3 C (8.1 F)
1999
-16.1 C (3.0 F)
2000
-17.8 C (0.0 F)
2001
-19.4 C (-2.9 F)
2002
-15.6 C (3.9 F)
2003
-17.2 C (1.0 F)
2004
-19.4 C (-2.9 F)
2005
-15.6 C (3.9 F)
2006
-8.9 C (16.0 F)
2007
-15.6 C (3.9 F)
2008
9.4 C (48.9 F)
2010
-14.4 C (6.1 F)
2012
-9.4 C (15.1 F)
2013
-16.7 C (1.9 F)
2014
-20.0 C (-4.0 F)
2015
-22.8 C (-9.0 F)
2016
-20.6 C (-5.1 F)
2017
-16.7 C (1.9 F)
2018
-23.9 C (-11.0 F)
2019
-17.8 C (0.0 F)
2020
-13.3 C (8.1 F)
2021
-17.8 C (0.0 F)
2022
-7.2 C (19.0 F)
Wettest day (Rx1day)
The wettest day of the year at Stamford 5 N, 1955 to 2022. The record is 155.4 mm (6.1 in) in 1972, marked on the chart; the median year is 74.4 mm (2.9 in).
Wettest day (Rx1day) at Stamford 5 N by year
Year
Wettest day (Rx1day)
1955
7.4 mm (0.29 in)
1956
72.4 mm (2.9 in)
1957
42.2 mm (1.7 in)
1958
56.4 mm (2.2 in)
1959
74.4 mm (2.9 in)
1960
95.3 mm (3.8 in)
1961
59.9 mm (2.4 in)
1962
71.4 mm (2.8 in)
1963
78.5 mm (3.1 in)
1964
60.5 mm (2.4 in)
1965
94.5 mm (3.7 in)
1966
55.1 mm (2.2 in)
1967
51.6 mm (2.0 in)
1968
115.1 mm (4.5 in)
1969
65.8 mm (2.6 in)
1970
58.4 mm (2.3 in)
1971
93.7 mm (3.7 in)
1972
155.4 mm (6.1 in)
1973
88.6 mm (3.5 in)
1974
96.3 mm (3.8 in)
1975
111.3 mm (4.4 in)
1976
89.9 mm (3.5 in)
1977
85.3 mm (3.4 in)
1978
53.3 mm (2.1 in)
1979
104.6 mm (4.1 in)
1980
72.9 mm (2.9 in)
1981
71.6 mm (2.8 in)
1982
74.7 mm (2.9 in)
1983
88.9 mm (3.5 in)
1984
80.8 mm (3.2 in)
1985
102.1 mm (4.0 in)
1986
76.7 mm (3.0 in)
1987
97.0 mm (3.8 in)
1988
62.0 mm (2.4 in)
1989
90.9 mm (3.6 in)
1990
95.5 mm (3.8 in)
1991
91.9 mm (3.6 in)
1992
59.9 mm (2.4 in)
1993
70.1 mm (2.8 in)
1994
57.4 mm (2.3 in)
1995
55.9 mm (2.2 in)
1996
102.6 mm (4.0 in)
1997
59.2 mm (2.3 in)
1998
68.6 mm (2.7 in)
1999
127.5 mm (5.0 in)
2000
57.2 mm (2.3 in)
2001
77.0 mm (3.0 in)
2002
60.7 mm (2.4 in)
2003
53.6 mm (2.1 in)
2004
117.3 mm (4.6 in)
2005
110.7 mm (4.4 in)
2006
88.4 mm (3.5 in)
2007
104.1 mm (4.1 in)
2008
20.3 mm (0.8 in)
2010
96.5 mm (3.8 in)
2012
35.6 mm (1.4 in)
2013
84.6 mm (3.3 in)
2014
71.1 mm (2.8 in)
2015
54.4 mm (2.1 in)
2016
37.1 mm (1.5 in)
2017
0.0 mm (0.00 in)
2018
84.3 mm (3.3 in)
2019
76.2 mm (3.0 in)
2020
50.8 mm (2.0 in)
2021
38.1 mm (1.5 in)
2022
n/a
Wettest five days (Rx5day)
The wettest five days of the year at Stamford 5 N, 1955 to 2022. The record is 234.2 mm (9.2 in) in 1975, marked on the chart; the median year is 100.5 mm (4.0 in).
Wettest five days (Rx5day) at Stamford 5 N by year
Year
Wettest five days (Rx5day)
1955
8.2 mm (0.32 in)
1956
112.8 mm (4.4 in)
1957
87.1 mm (3.4 in)
1958
91.4 mm (3.6 in)
1959
99.6 mm (3.9 in)
1960
111.5 mm (4.4 in)
1961
90.7 mm (3.6 in)
1962
78.0 mm (3.1 in)
1963
98.1 mm (3.9 in)
1964
80.8 mm (3.2 in)
1965
99.3 mm (3.9 in)
1966
101.4 mm (4.0 in)
1967
85.2 mm (3.4 in)
1968
143.6 mm (5.7 in)
1969
87.1 mm (3.4 in)
1970
94.7 mm (3.7 in)
1971
167.1 mm (6.6 in)
1972
221.5 mm (8.7 in)
1973
108.4 mm (4.3 in)
1974
186.2 mm (7.3 in)
1975
234.2 mm (9.2 in)
1976
125.3 mm (4.9 in)
1977
114.3 mm (4.5 in)
1978
118.7 mm (4.7 in)
1979
157.7 mm (6.2 in)
1980
128.8 mm (5.1 in)
1981
107.1 mm (4.2 in)
1982
93.7 mm (3.7 in)
1983
114.8 mm (4.5 in)
1984
196.6 mm (7.7 in)
1985
121.1 mm (4.8 in)
1986
89.1 mm (3.5 in)
1987
168.1 mm (6.6 in)
1988
99.2 mm (3.9 in)
1989
153.1 mm (6.0 in)
1990
112.8 mm (4.4 in)
1991
144.2 mm (5.7 in)
1992
99.2 mm (3.9 in)
1993
92.4 mm (3.6 in)
1994
80.7 mm (3.2 in)
1995
73.2 mm (2.9 in)
1996
159.3 mm (6.3 in)
1997
83.9 mm (3.3 in)
1998
85.6 mm (3.4 in)
1999
172.4 mm (6.8 in)
2000
111.9 mm (4.4 in)
2001
90.2 mm (3.6 in)
2002
103.9 mm (4.1 in)
2003
90.0 mm (3.5 in)
2004
129.5 mm (5.1 in)
2005
212.1 mm (8.4 in)
2006
88.7 mm (3.5 in)
2007
218.9 mm (8.6 in)
2008
32.7 mm (1.3 in)
2010
125.0 mm (4.9 in)
2012
60.2 mm (2.4 in)
2013
142.5 mm (5.6 in)
2014
108.1 mm (4.3 in)
2015
81.3 mm (3.2 in)
2016
43.0 mm (1.7 in)
2017
n/a
2018
86.4 mm (3.4 in)
2019
88.9 mm (3.5 in)
2020
71.1 mm (2.8 in)
2021
50.8 mm (2.0 in)
2022
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Stamford 5 N, 1955 to 2022. The record is 29 days in 2001, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Stamford 5 N by year
Year
Longest dry spell (CDD)
1955
16 days
1956
17 days
1957
23 days
1958
21 days
1959
17 days
1960
18 days
1961
15 days
1962
15 days
1963
23 days
1964
22 days
1965
18 days
1966
18 days
1967
14 days
1968
25 days
1969
13 days
1970
17 days
1971
21 days
1972
12 days
1973
22 days
1974
15 days
1975
16 days
1976
26 days
1977
18 days
1978
19 days
1979
14 days
1980
23 days
1981
25 days
1982
24 days
1983
22 days
1984
20 days
1985
18 days
1986
17 days
1987
16 days
1988
19 days
1989
17 days
1990
14 days
1991
22 days
1992
15 days
1993
17 days
1994
10 days
1995
25 days
1996
13 days
1997
11 days
1998
14 days
1999
18 days
2000
21 days
2001
29 days
2002
12 days
2003
13 days
2004
25 days
2005
14 days
2006
10 days
2007
10 days
2008
13 days
2010
9 days
2012
10 days
2013
23 days
2014
25 days
2015
23 days
2016
19 days
2017
3 days
2018
15 days
2019
23 days
2020
23 days
2021
22 days
2022
n/a
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 Stamford 5 N falls on 29 April and the median first autumn frost on 11 October, which leaves a median of 166 days between them.
Fitted over all years, the growing season changes by +4.2 days per decade at this station.
Frost dates and growing season at Stamford 5 N
Measure
Median, all years
Earliest period
Recent period (1979 to 2019)
Recent against earliest
Fitted trend
Last spring frost
29 April
n/a
24 April
n/a
-2.0 days per decade
First autumn frost
11 October
n/a
12 October
n/a
+2.2 days per decade
Growing days
166 days
n/a
170 days
n/a
+4.2 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
52 years, 1956 to 2015
A day with at least 75.3 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 151.1 mm (5.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Stamford 5 N: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
75.3 mm (3.0 in)
5 years
95.7 mm (3.8 in)
10 years
109.1 mm (4.3 in)
25 years
126.1 mm (5.0 in)
50 years
138.6 mm (5.5 in)
100 years
151.1 mm (5.9 in)
Longer than the 52 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, 52 years of values from 1956 to 2015.
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: 155.4 mm (6.1 in) in 1972; 127.5 mm (5.0 in) in 1999; 117.3 mm (4.6 in) in 2004.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Stamford 5 N, at 1978. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1978 ran 0.1 C (0.2 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Stamford 5 N, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1978
+0.1
+0.2
possible
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 Stamford 5 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Stamford 5 N 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.