Record envelope, standing records and threshold days for Peterboro 2 S (USC00276697), New Hampshire, United States, with 103 years of record.
Key Facts for Peterboro 2 S
Peterboro 2 S (USC00276697) is a weather station in New Hampshire, United States at 42.85 latitude and -71.95 longitude, 311 m (1,020 ft) above sea level.
The station reports from 1892 to 1994, 103 years of record.
1,464 records set at Peterboro 2 S still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Peterboro 2 S set a daily record high maximum temperature of 23.9 C (75.0 F) on 6 November 1994.
About the Station
Location: New Hampshire, United States, 42.85 latitude, -71.95 longitude.
Elevation: 311 m (1,020 ft).
Period of record: 1892 to 1994, 103 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 Peterboro 2 S. 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 Peterboro 2 S, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Feb
18.9 C (66.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Mar
26.7 C (80.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-15.0 C (5.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-7.2 C (19.0 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
36.7 C (98.1 F)
0.6 C (33.1 F)
n/a
n/a
Aug
35.6 C (96.1 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-7.2 C (19.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-10.6 C (12.9 F)
n/a
n/a
Nov
25.0 C (77.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-30.6 C (-23.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Peterboro 2 S still stand. 1896 holds the most, with 65.
Standing records at Peterboro 2 S by the year they were set
Year set
Standing records
1892
32
1893
19
1894
43
1895
47
1896
65
1897
38
1898
37
1899
40
1900
33
1901
36
1902
31
1903
14
1948
19
1949
32
1950
30
1951
17
1952
7
1953
28
1954
19
1955
28
1956
28
1957
25
1958
14
1959
31
1960
4
1961
26
1962
29
1963
26
1964
32
1965
30
1966
33
1967
37
1968
21
1969
14
1970
16
1971
19
1972
18
1973
21
1974
25
1975
20
1976
32
1977
30
1978
14
1979
42
1980
11
1981
23
1982
38
1983
19
1984
30
1985
19
1986
9
1987
16
1988
15
1989
14
1990
21
1991
11
1992
10
1993
7
1994
19
All-Time Record Progression
2 new records
2 all-time records were set at Peterboro 2 S between 7 February 1978 and 25 July 1987. Each dot is a new record.
When Peterboro 2 S set new all-time records
Date
Kind
Detail
1978-02-07
Record daily snowfall
Record daily snowfall 61.0 cm (24.0 in)
1987-07-25
Record high minimum temperature
Record high minimum temperature 26.1 C (79.0 F)
Wettest Day of Each Month
Sep: 129.0 mm (5.1 in)
The wettest day on record for each calendar month at Peterboro 2 S. The most was 129.0 mm (5.1 in) on 12 September 1960.
Record daily precipitation for each month at Peterboro 2 S
Month
Record daily precipitation (mm)
Date
Jan
90.2 mm (3.6 in)
9 January 1956
Feb
66.8 mm (2.6 in)
6 February 1896
Mar
76.2 mm (3.0 in)
5 March 1982
Apr
83.8 mm (3.3 in)
9 April 1902
May
66.0 mm (2.6 in)
30 May 1984
Jun
86.4 mm (3.4 in)
30 June 1973
Jul
104.4 mm (4.1 in)
13 July 1897
Aug
100.1 mm (3.9 in)
31 August 1954
Sep
129.0 mm (5.1 in)
12 September 1960
Oct
85.1 mm (3.4 in)
13 October 1895
Nov
71.9 mm (2.8 in)
3 November 1954
Dec
63.5 mm (2.5 in)
21 December 1973
Period of Record Coverage
1892 to 1994
Complete yearUnder 90 percent of days
59 years of record at Peterboro 2 S, 1892 to 1994. 11 years have data for under 90 percent of days and are left out of rankings: 1893, 1903, 1948, 1987, 1988, 1989, 1990, 1991 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 46 complete years at Peterboro 2 S, 1894 to 1986. Blue stripes are years cooler than the station's own mean of 7.3 C (45.2 F); red stripes are warmer. The coolest year was 1962, at 6.1 C (43.0 F), and the warmest was 1953, at 9.1 C (48.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Peterboro 2 S as warming stripes, 1894 to 1986
Year
Annual mean temperature
Difference from the station mean
1894
7.1 C
-0.28 C
1895
6.5 C
-0.90 C
1896
7.5 C
+0.17 C
1897
7.0 C
-0.36 C
1898
7.3 C
-0.05 C
1899
6.8 C
-0.60 C
1900
7.1 C
-0.26 C
1901
6.9 C
-0.50 C
1902
7.1 C
-0.25 C
1949
8.7 C
+1.34 C
1950
7.6 C
+0.28 C
1951
7.7 C
+0.34 C
1952
8.2 C
+0.87 C
1953
9.1 C
+1.71 C
1954
7.7 C
+0.34 C
1955
7.7 C
+0.36 C
1956
7.1 C
-0.23 C
1957
8.0 C
+0.69 C
1958
6.9 C
-0.46 C
1959
7.9 C
+0.50 C
1960
6.9 C
-0.50 C
1961
7.1 C
-0.24 C
1962
6.1 C
-1.22 C
1963
7.0 C
-0.31 C
1964
7.3 C
-0.10 C
1965
6.7 C
-0.67 C
1966
6.2 C
-1.11 C
1967
6.7 C
-0.63 C
1968
6.9 C
-0.46 C
1969
7.2 C
-0.18 C
1970
6.9 C
-0.45 C
1971
7.2 C
-0.20 C
1972
6.7 C
-0.62 C
1973
8.4 C
+1.02 C
1974
7.5 C
+0.12 C
1975
7.9 C
+0.50 C
1976
7.3 C
-0.10 C
1977
7.6 C
+0.21 C
1979
8.0 C
+0.61 C
1980
7.2 C
-0.12 C
1981
7.6 C
+0.24 C
1982
7.4 C
+0.04 C
1983
8.1 C
+0.75 C
1984
7.7 C
+0.37 C
1985
7.4 C
+0.06 C
1986
7.5 C
+0.15 C
The fitted trend in annual mean temperature here over 1894 to 1986 is 0.05 C (-0.01 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.08 F (-0.03 to 0.19) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Peterboro 2 S
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.05 C (-0.01 to 0.11) per decade
0.08 F (-0.03 to 0.19) per decade
1894 to 1986
46
Not clearly different from zero
Mean daily maximum
0.03 C (-0.02 to 0.08) per decade
0.05 F (-0.04 to 0.15) per decade
1894 to 1986
46
Not clearly different from zero
Mean daily minimum
0.06 C (-0.03 to 0.15) per decade
0.1 F (-0.1 to 0.3) per decade
1894 to 1986
46
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
1892 to 1994
Yearly extremes at Peterboro 2 S: 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)
1901
32.8 C (91.0 F)
59
Coldest night (TNn)
-32.2 C (-26.0 F)
1894
-26.1 C (-15.0 F)
59
Wettest day (Rx1day)
129.0 mm (5.1 in)
1960
59.2 mm (2.3 in)
59
Wettest five days (Rx5day)
189.2 mm (7.4 in)
1984
84.3 mm (3.3 in)
57
Longest dry spell (CDD)
28 days
1892
16 days
59
Hottest day (TXx)
The hottest day of the year at Peterboro 2 S, 1892 to 1994. The record is 36.7 C (98.1 F) in 1901, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Peterboro 2 S by year
Year
Hottest day (TXx)
1892
34.4 C (93.9 F)
1893
34.4 C (93.9 F)
1894
35.0 C (95.0 F)
1895
33.9 C (93.0 F)
1896
33.3 C (91.9 F)
1897
34.4 C (93.9 F)
1898
33.3 C (91.9 F)
1899
32.8 C (91.0 F)
1900
34.4 C (93.9 F)
1901
36.7 C (98.1 F)
1902
31.1 C (88.0 F)
1903
23.9 C (75.0 F)
1948
35.6 C (96.1 F)
1949
33.9 C (93.0 F)
1950
31.1 C (88.0 F)
1951
30.0 C (86.0 F)
1952
33.9 C (93.0 F)
1953
34.4 C (93.9 F)
1954
32.2 C (90.0 F)
1955
35.6 C (96.1 F)
1956
33.3 C (91.9 F)
1957
33.3 C (91.9 F)
1958
31.7 C (89.1 F)
1959
33.3 C (91.9 F)
1960
31.1 C (88.0 F)
1961
32.2 C (90.0 F)
1962
34.4 C (93.9 F)
1963
35.0 C (95.0 F)
1964
34.4 C (93.9 F)
1965
34.4 C (93.9 F)
1966
34.4 C (93.9 F)
1967
34.4 C (93.9 F)
1968
32.8 C (91.0 F)
1969
31.7 C (89.1 F)
1970
31.7 C (89.1 F)
1971
32.2 C (90.0 F)
1972
31.1 C (88.0 F)
1973
32.8 C (91.0 F)
1974
31.7 C (89.1 F)
1975
34.4 C (93.9 F)
1976
32.8 C (91.0 F)
1977
31.7 C (89.1 F)
1978
32.8 C (91.0 F)
1979
31.7 C (89.1 F)
1980
31.1 C (88.0 F)
1981
31.1 C (88.0 F)
1982
32.8 C (91.0 F)
1983
32.8 C (91.0 F)
1984
32.2 C (90.0 F)
1985
31.1 C (88.0 F)
1986
31.7 C (89.1 F)
1987
30.6 C (87.1 F)
1988
33.9 C (93.0 F)
1989
31.1 C (88.0 F)
1990
31.7 C (89.1 F)
1991
28.9 C (84.0 F)
1992
28.9 C (84.0 F)
1993
30.0 C (86.0 F)
1994
32.8 C (91.0 F)
Coldest night (TNn)
The coldest night of the year at Peterboro 2 S, 1892 to 1994. The record is -32.2 C (-26.0 F) in 1894, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Peterboro 2 S by year
Year
Coldest night (TNn)
1892
-25.6 C (-14.1 F)
1893
-29.4 C (-20.9 F)
1894
-32.2 C (-26.0 F)
1895
-30.0 C (-22.0 F)
1896
-31.7 C (-25.1 F)
1897
-29.4 C (-20.9 F)
1898
-30.0 C (-22.0 F)
1899
-30.0 C (-22.0 F)
1900
-28.9 C (-20.0 F)
1901
-30.6 C (-23.1 F)
1902
-28.9 C (-20.0 F)
1903
-30.0 C (-22.0 F)
1948
-18.3 C (-0.9 F)
1949
-21.7 C (-7.1 F)
1950
-26.7 C (-16.1 F)
1951
-23.9 C (-11.0 F)
1952
-22.8 C (-9.0 F)
1953
-18.3 C (-0.9 F)
1954
-23.3 C (-9.9 F)
1955
-24.4 C (-11.9 F)
1956
-21.7 C (-7.1 F)
1957
-30.6 C (-23.1 F)
1958
-24.4 C (-11.9 F)
1959
-22.2 C (-8.0 F)
1960
-25.0 C (-13.0 F)
1961
-27.2 C (-17.0 F)
1962
-28.9 C (-20.0 F)
1963
-25.0 C (-13.0 F)
1964
-22.2 C (-8.0 F)
1965
-25.6 C (-14.1 F)
1966
-28.9 C (-20.0 F)
1967
-28.3 C (-18.9 F)
1968
-26.1 C (-15.0 F)
1969
-26.1 C (-15.0 F)
1970
-24.4 C (-11.9 F)
1971
-28.9 C (-20.0 F)
1972
-27.8 C (-18.0 F)
1973
-25.0 C (-13.0 F)
1974
-29.4 C (-20.9 F)
1975
-25.0 C (-13.0 F)
1976
-29.4 C (-20.9 F)
1977
-22.8 C (-9.0 F)
1978
-25.6 C (-14.1 F)
1979
-26.7 C (-16.1 F)
1980
-28.3 C (-18.9 F)
1981
-27.2 C (-17.0 F)
1982
-27.8 C (-18.0 F)
1983
-24.4 C (-11.9 F)
1984
-30.0 C (-22.0 F)
1985
-22.2 C (-8.0 F)
1986
-22.8 C (-9.0 F)
1987
-24.4 C (-11.9 F)
1988
-26.7 C (-16.1 F)
1989
-26.1 C (-15.0 F)
1990
-22.8 C (-9.0 F)
1991
-22.2 C (-8.0 F)
1992
-19.4 C (-2.9 F)
1993
-20.6 C (-5.1 F)
1994
-30.0 C (-22.0 F)
Wettest day (Rx1day)
The wettest day of the year at Peterboro 2 S, 1892 to 1994. The record is 129.0 mm (5.1 in) in 1960, marked on the chart; the median year is 59.2 mm (2.3 in).
Wettest day (Rx1day) at Peterboro 2 S by year
Year
Wettest day (Rx1day)
1892
52.6 mm (2.1 in)
1893
53.8 mm (2.1 in)
1894
49.3 mm (1.9 in)
1895
85.1 mm (3.4 in)
1896
76.2 mm (3.0 in)
1897
104.4 mm (4.1 in)
1898
68.6 mm (2.7 in)
1899
44.5 mm (1.8 in)
1900
68.6 mm (2.7 in)
1901
57.2 mm (2.3 in)
1902
83.8 mm (3.3 in)
1903
43.2 mm (1.7 in)
1948
42.4 mm (1.7 in)
1949
57.4 mm (2.3 in)
1950
45.0 mm (1.8 in)
1951
53.3 mm (2.1 in)
1952
55.6 mm (2.2 in)
1953
49.3 mm (1.9 in)
1954
100.1 mm (3.9 in)
1955
84.3 mm (3.3 in)
1956
90.2 mm (3.6 in)
1957
46.5 mm (1.8 in)
1958
55.1 mm (2.2 in)
1959
78.7 mm (3.1 in)
1960
129.0 mm (5.1 in)
1961
68.6 mm (2.7 in)
1962
62.7 mm (2.5 in)
1963
70.6 mm (2.8 in)
1964
59.2 mm (2.3 in)
1965
33.8 mm (1.3 in)
1966
45.7 mm (1.8 in)
1967
50.8 mm (2.0 in)
1968
69.1 mm (2.7 in)
1969
74.4 mm (2.9 in)
1970
73.7 mm (2.9 in)
1971
101.6 mm (4.0 in)
1972
47.5 mm (1.9 in)
1973
86.4 mm (3.4 in)
1974
41.7 mm (1.6 in)
1975
82.3 mm (3.2 in)
1976
38.9 mm (1.5 in)
1977
58.4 mm (2.3 in)
1978
61.0 mm (2.4 in)
1979
66.0 mm (2.6 in)
1980
78.2 mm (3.1 in)
1981
51.3 mm (2.0 in)
1982
76.2 mm (3.0 in)
1983
62.7 mm (2.5 in)
1984
66.0 mm (2.6 in)
1985
52.8 mm (2.1 in)
1986
64.5 mm (2.5 in)
1987
62.2 mm (2.4 in)
1988
60.5 mm (2.4 in)
1989
52.6 mm (2.1 in)
1990
49.5 mm (1.9 in)
1991
46.5 mm (1.8 in)
1992
30.5 mm (1.2 in)
1993
40.4 mm (1.6 in)
1994
45.7 mm (1.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Peterboro 2 S, 1892 to 1994. The record is 189.2 mm (7.4 in) in 1984, marked on the chart; the median year is 84.3 mm (3.3 in).
Wettest five days (Rx5day) at Peterboro 2 S by year
Year
Wettest five days (Rx5day)
1892
103.1 mm (4.1 in)
1893
36.4 mm (1.4 in)
1894
52.0 mm (2.0 in)
1895
n/a
1896
40.9 mm (1.6 in)
1897
99.0 mm (3.9 in)
1898
57.6 mm (2.3 in)
1899
n/a
1900
54.4 mm (2.1 in)
1901
125.7 mm (4.9 in)
1902
109.4 mm (4.3 in)
1903
65.1 mm (2.6 in)
1948
70.1 mm (2.8 in)
1949
72.4 mm (2.9 in)
1950
72.7 mm (2.9 in)
1951
83.3 mm (3.3 in)
1952
109.0 mm (4.3 in)
1953
86.2 mm (3.4 in)
1954
110.5 mm (4.4 in)
1955
168.2 mm (6.6 in)
1956
146.6 mm (5.8 in)
1957
76.4 mm (3.0 in)
1958
65.3 mm (2.6 in)
1959
119.4 mm (4.7 in)
1960
168.1 mm (6.6 in)
1961
85.7 mm (3.4 in)
1962
123.2 mm (4.9 in)
1963
124.5 mm (4.9 in)
1964
84.3 mm (3.3 in)
1965
62.7 mm (2.5 in)
1966
61.0 mm (2.4 in)
1967
68.9 mm (2.7 in)
1968
104.9 mm (4.1 in)
1969
131.8 mm (5.2 in)
1970
101.4 mm (4.0 in)
1971
119.9 mm (4.7 in)
1972
64.5 mm (2.5 in)
1973
123.5 mm (4.9 in)
1974
64.8 mm (2.6 in)
1975
118.7 mm (4.7 in)
1976
63.0 mm (2.5 in)
1977
74.5 mm (2.9 in)
1978
75.2 mm (3.0 in)
1979
116.8 mm (4.6 in)
1980
81.7 mm (3.2 in)
1981
119.0 mm (4.7 in)
1982
108.0 mm (4.3 in)
1983
71.8 mm (2.8 in)
1984
189.2 mm (7.4 in)
1985
81.2 mm (3.2 in)
1986
90.1 mm (3.5 in)
1987
163.6 mm (6.4 in)
1988
123.3 mm (4.9 in)
1989
105.9 mm (4.2 in)
1990
72.4 mm (2.9 in)
1991
46.5 mm (1.8 in)
1992
57.6 mm (2.3 in)
1993
49.4 mm (1.9 in)
1994
79.0 mm (3.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Peterboro 2 S, 1892 to 1994. The record is 28 days in 1892, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Peterboro 2 S by year
Year
Longest dry spell (CDD)
1892
28 days
1893
2 days
1894
3 days
1895
2 days
1896
3 days
1897
3 days
1898
4 days
1899
2 days
1900
3 days
1901
24 days
1902
15 days
1903
10 days
1948
19 days
1949
21 days
1950
23 days
1951
14 days
1952
21 days
1953
15 days
1954
14 days
1955
16 days
1956
19 days
1957
18 days
1958
16 days
1959
14 days
1960
18 days
1961
17 days
1962
15 days
1963
24 days
1964
19 days
1965
20 days
1966
13 days
1967
14 days
1968
21 days
1969
16 days
1970
17 days
1971
14 days
1972
13 days
1973
15 days
1974
16 days
1975
16 days
1976
20 days
1977
16 days
1978
13 days
1979
14 days
1980
23 days
1981
12 days
1982
19 days
1983
16 days
1984
19 days
1985
20 days
1986
13 days
1987
19 days
1988
14 days
1989
21 days
1990
14 days
1991
24 days
1992
12 days
1993
8 days
1994
11 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
46 years with a frost
Across 46 years with a frost, the median last spring frost at Peterboro 2 S falls on 22 May and the median first autumn frost on 21 September, which leaves a median of 121 days between them.
Fitted over all years, the growing season changes by +0.5 days per decade at this station.
Frost dates and growing season at Peterboro 2 S
Measure
Median, all years
Earliest period
Recent period (1956 to 1986)
Recent against earliest
Fitted trend
Last spring frost
22 May
n/a
26 May
n/a
+0.6 days per decade
First autumn frost
21 September
n/a
21 September
n/a
+1.1 days per decade
Growing days
121 days
n/a
120 days
n/a
+0.5 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
39 years, 1902 to 1986
A day with at least 62.9 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 126.8 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Peterboro 2 S: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
62.9 mm (2.5 in)
5 years
80.5 mm (3.2 in)
10 years
91.9 mm (3.6 in)
25 years
106.2 mm (4.2 in)
50 years
116.6 mm (4.6 in)
Longer than the 39 years of record
100 years
126.8 mm (5.0 in)
Longer than the 39 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, 39 years of values from 1902 to 1986.
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: 129.0 mm (5.1 in) in 1960; 101.6 mm (4.0 in) in 1971; 100.1 mm (3.9 in) in 1954.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Peterboro 2 S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Peterboro 2 S 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.