Record envelope, standing records and threshold days for Adams (USC00190049), Massachusetts, United States, with 86 years of record.
Key Facts for Adams
Adams (USC00190049) is a weather station in Massachusetts, United States at 42.65 latitude and -73.10 longitude, 229 m (751 ft) above sea level.
The station reports from 1893 to 1978, 86 years of record.
1,464 records set at Adams still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Adams tied a daily record high maximum temperature of 31.1 C (88.0 F) on 22 September 1978.
About the Station
Location: Massachusetts, United States, 42.65 latitude, -73.10 longitude.
Elevation: 229 m (751 ft).
Period of record: 1893 to 1978, 86 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 Adams. 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 Adams, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.3 C (64.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-33.9 C (-29.0 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-11.1 C (12.0 F)
n/a
n/a
May
33.9 C (93.0 F)
-5.6 C (21.9 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
36.7 C (98.1 F)
1.7 C (35.1 F)
n/a
n/a
Aug
38.3 C (100.9 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-10.0 C (14.0 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Adams still stand. 1956 holds the most, with 44.
Standing records at Adams by the year they were set
Year set
Standing records
1893
18
1894
24
1895
33
1896
29
1897
25
1898
32
1899
26
1900
38
1901
3
1930
28
1931
28
1932
22
1933
27
1934
29
1935
28
1936
33
1937
22
1938
35
1939
18
1940
26
1941
20
1942
36
1943
34
1944
19
1945
37
1946
33
1947
29
1948
20
1949
35
1950
39
1951
22
1952
17
1953
23
1954
35
1955
22
1956
44
1957
26
1958
19
1959
26
1960
13
1961
35
1962
21
1963
23
1964
23
1965
22
1966
11
1967
32
1968
27
1969
15
1970
21
1971
18
1972
18
1973
21
1974
24
1975
12
1976
32
1977
26
1978
10
All-Time Record Progression
1 new records
1 all-time records were set at Adams between 9 January 1968 and 9 January 1968. Each dot is a new record.
When Adams set new all-time records
Date
Kind
Detail
1968-01-09
Record low maximum temperature
Record low maximum temperature -21.7 C (-7.1 F)
Wettest Day of Each Month
Dec: 152.4 mm (6.0 in)
The wettest day on record for each calendar month at Adams. The most was 152.4 mm (6.0 in) on 2 December 1893.
Record daily precipitation for each month at Adams
Month
Record daily precipitation (mm)
Date
Jan
65.3 mm (2.6 in)
6 January 1949
Feb
47.5 mm (1.9 in)
11 February 1970
Mar
50.8 mm (2.0 in)
14 March 1977
Apr
79.5 mm (3.1 in)
26 April 1945
May
61.2 mm (2.4 in)
15 May 1937
Jun
82.3 mm (3.2 in)
16 June 1969
Jul
65.8 mm (2.6 in)
8 July 1935
Aug
106.2 mm (4.2 in)
10 August 1976
Sep
95.3 mm (3.8 in)
20 September 1960
Oct
67.1 mm (2.6 in)
8 October 1951
Nov
85.9 mm (3.4 in)
9 November 1943
Dec
152.4 mm (6.0 in)
2 December 1893
Period of Record Coverage
1893 to 1978
Complete yearUnder 90 percent of days
58 years of record at Adams, 1893 to 1978. 5 years have data for under 90 percent of days and are left out of rankings: 1900, 1901, 1930, 1948, 1978.
Cooler than the station meanWarmer than the station mean
One stripe for each of 53 complete years at Adams, 1893 to 1977. Blue stripes are years cooler than the station's own mean of 7.7 C (45.9 F); red stripes are warmer. The coolest year was 1943, at 6.5 C (43.6 F), and the warmest was 1949, at 9.3 C (48.8 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Adams as warming stripes, 1893 to 1977
Year
Annual mean temperature
Difference from the station mean
1893
7.7 C
+0.00 C
1894
8.9 C
+1.17 C
1895
8.1 C
+0.40 C
1896
8.3 C
+0.55 C
1897
8.4 C
+0.68 C
1898
8.6 C
+0.91 C
1899
8.3 C
+0.55 C
1900
8.9 C
+1.23 C
1931
8.9 C
+1.16 C
1932
8.0 C
+0.31 C
1933
7.9 C
+0.20 C
1934
7.4 C
-0.32 C
1936
7.9 C
+0.17 C
1937
8.5 C
+0.75 C
1938
8.6 C
+0.91 C
1939
7.8 C
+0.12 C
1940
6.7 C
-1.05 C
1941
7.5 C
-0.16 C
1942
7.4 C
-0.30 C
1943
6.5 C
-1.24 C
1944
7.4 C
-0.35 C
1945
7.8 C
+0.09 C
1946
8.5 C
+0.82 C
1947
8.1 C
+0.38 C
1949
9.3 C
+1.64 C
1950
7.6 C
-0.09 C
1951
8.6 C
+0.88 C
1952
8.7 C
+0.99 C
1953
8.4 C
+0.69 C
1954
7.2 C
-0.48 C
1955
7.3 C
-0.40 C
1956
6.6 C
-1.07 C
1957
7.6 C
-0.08 C
1958
6.9 C
-0.83 C
1959
8.3 C
+0.59 C
1960
7.3 C
-0.43 C
1961
7.5 C
-0.23 C
1962
6.6 C
-1.06 C
1963
6.6 C
-1.12 C
1964
7.2 C
-0.49 C
1965
6.8 C
-0.94 C
1966
7.0 C
-0.66 C
1967
7.0 C
-0.73 C
1968
7.2 C
-0.47 C
1969
7.5 C
-0.17 C
1970
7.3 C
-0.45 C
1971
7.4 C
-0.32 C
1972
6.8 C
-0.94 C
1973
8.6 C
+0.91 C
1974
7.3 C
-0.38 C
1975
7.8 C
+0.05 C
1976
6.7 C
-0.97 C
1977
7.1 C
-0.56 C
The annual mean temperature here has fallen by 0.2 C (0.1 to 0.2) per decade over 1893 to 1977. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 53 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Adams
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.2 to -0.1) per decade
-0.3 F (-0.4 to -0.2) per decade
1893 to 1977
53
Fall
Mean daily maximum
-0.10 C (-0.21 to 0.01) per decade
-0.19 F (-0.38 to 0.01) per decade
1893 to 1977
53
Not clearly different from zero
Mean daily minimum
-0.2 C (-0.3 to -0.1) per decade
-0.4 F (-0.5 to -0.2) per decade
1893 to 1977
53
Fall
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
1893 to 1978
Yearly extremes at Adams: 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)
1948
34.4 C (93.9 F)
58
Coldest night (TNn)
-33.9 C (-29.0 F)
1943
-24.4 C (-11.9 F)
58
Wettest day (Rx1day)
152.4 mm (6.0 in)
1893
54.3 mm (2.1 in)
58
Wettest five days (Rx5day)
220.0 mm (8.7 in)
1949
93.0 mm (3.7 in)
51
Longest dry spell (CDD)
26 days
1947
14 days
58
Hottest day (TXx)
The hottest day of the year at Adams, 1893 to 1978. The record is 38.3 C (100.9 F) in 1948, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Adams by year
Year
Hottest day (TXx)
1893
33.3 C (91.9 F)
1894
35.6 C (96.1 F)
1895
32.2 C (90.0 F)
1896
33.3 C (91.9 F)
1897
33.9 C (93.0 F)
1898
36.7 C (98.1 F)
1899
36.1 C (97.0 F)
1900
32.8 C (91.0 F)
1901
24.4 C (75.9 F)
1930
32.2 C (90.0 F)
1931
34.4 C (93.9 F)
1932
35.0 C (95.0 F)
1933
36.7 C (98.1 F)
1934
32.8 C (91.0 F)
1935
35.0 C (95.0 F)
1936
35.6 C (96.1 F)
1937
35.0 C (95.0 F)
1938
35.0 C (95.0 F)
1939
34.4 C (93.9 F)
1940
33.9 C (93.0 F)
1941
35.0 C (95.0 F)
1942
34.4 C (93.9 F)
1943
35.0 C (95.0 F)
1944
37.2 C (99.0 F)
1945
33.9 C (93.0 F)
1946
35.6 C (96.1 F)
1947
36.1 C (97.0 F)
1948
38.3 C (100.9 F)
1949
36.7 C (98.1 F)
1950
33.3 C (91.9 F)
1951
34.4 C (93.9 F)
1952
37.2 C (99.0 F)
1953
36.7 C (98.1 F)
1954
32.8 C (91.0 F)
1955
35.0 C (95.0 F)
1956
33.9 C (93.0 F)
1957
34.4 C (93.9 F)
1958
32.2 C (90.0 F)
1959
35.0 C (95.0 F)
1960
32.2 C (90.0 F)
1961
33.3 C (91.9 F)
1962
33.9 C (93.0 F)
1963
34.4 C (93.9 F)
1964
34.4 C (93.9 F)
1965
33.9 C (93.0 F)
1966
35.6 C (96.1 F)
1967
33.3 C (91.9 F)
1968
35.0 C (95.0 F)
1969
35.0 C (95.0 F)
1970
33.3 C (91.9 F)
1971
32.8 C (91.0 F)
1972
33.9 C (93.0 F)
1973
35.0 C (95.0 F)
1974
33.3 C (91.9 F)
1975
35.0 C (95.0 F)
1976
33.3 C (91.9 F)
1977
34.4 C (93.9 F)
1978
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Adams, 1893 to 1978. The record is -33.9 C (-29.0 F) in 1943, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Adams by year
Year
Coldest night (TNn)
1893
-22.8 C (-9.0 F)
1894
-17.8 C (0.0 F)
1895
-17.8 C (0.0 F)
1896
-27.8 C (-18.0 F)
1897
-20.6 C (-5.1 F)
1898
-23.9 C (-11.0 F)
1899
-26.1 C (-15.0 F)
1900
-21.1 C (-6.0 F)
1901
-20.0 C (-4.0 F)
1930
-21.1 C (-6.0 F)
1931
-30.6 C (-23.1 F)
1932
-25.6 C (-14.1 F)
1933
-28.9 C (-20.0 F)
1934
-30.0 C (-22.0 F)
1935
-28.3 C (-18.9 F)
1936
-21.7 C (-7.1 F)
1937
-20.0 C (-4.0 F)
1938
-30.6 C (-23.1 F)
1939
-23.3 C (-9.9 F)
1940
-26.1 C (-15.0 F)
1941
-22.8 C (-9.0 F)
1942
-28.9 C (-20.0 F)
1943
-33.9 C (-29.0 F)
1944
-25.6 C (-14.1 F)
1945
-26.1 C (-15.0 F)
1946
-23.9 C (-11.0 F)
1947
-22.2 C (-8.0 F)
1948
-22.8 C (-9.0 F)
1949
-23.9 C (-11.0 F)
1950
-27.8 C (-18.0 F)
1951
-26.7 C (-16.1 F)
1952
-20.6 C (-5.1 F)
1953
-16.7 C (1.9 F)
1954
-30.0 C (-22.0 F)
1955
-27.2 C (-17.0 F)
1956
-23.3 C (-9.9 F)
1957
-29.4 C (-20.9 F)
1958
-25.0 C (-13.0 F)
1959
-20.6 C (-5.1 F)
1960
-23.3 C (-9.9 F)
1961
-31.1 C (-24.0 F)
1962
-24.4 C (-11.9 F)
1963
-28.3 C (-18.9 F)
1964
-24.4 C (-11.9 F)
1965
-24.4 C (-11.9 F)
1966
-24.4 C (-11.9 F)
1967
-26.7 C (-16.1 F)
1968
-28.9 C (-20.0 F)
1969
-27.8 C (-18.0 F)
1970
-25.6 C (-14.1 F)
1971
-26.7 C (-16.1 F)
1972
-23.3 C (-9.9 F)
1973
-23.3 C (-9.9 F)
1974
-23.9 C (-11.0 F)
1975
-23.3 C (-9.9 F)
1976
-28.3 C (-18.9 F)
1977
-23.9 C (-11.0 F)
1978
-23.9 C (-11.0 F)
Wettest day (Rx1day)
The wettest day of the year at Adams, 1893 to 1978. The record is 152.4 mm (6.0 in) in 1893, marked on the chart; the median year is 54.3 mm (2.1 in).
Wettest day (Rx1day) at Adams by year
Year
Wettest day (Rx1day)
1893
152.4 mm (6.0 in)
1894
0.0 mm (0.00 in)
1895
0.0 mm (0.00 in)
1896
0.0 mm (0.00 in)
1897
0.0 mm (0.00 in)
1898
0.0 mm (0.00 in)
1899
0.0 mm (0.00 in)
1900
7.6 mm (0.30 in)
1901
7.6 mm (0.30 in)
1930
37.1 mm (1.5 in)
1931
40.4 mm (1.6 in)
1932
47.8 mm (1.9 in)
1933
50.0 mm (2.0 in)
1934
63.5 mm (2.5 in)
1935
65.8 mm (2.6 in)
1936
38.6 mm (1.5 in)
1937
61.2 mm (2.4 in)
1938
53.1 mm (2.1 in)
1939
44.2 mm (1.7 in)
1940
60.2 mm (2.4 in)
1941
106.2 mm (4.2 in)
1942
72.9 mm (2.9 in)
1943
85.9 mm (3.4 in)
1944
37.1 mm (1.5 in)
1945
79.5 mm (3.1 in)
1946
45.7 mm (1.8 in)
1947
51.1 mm (2.0 in)
1948
111.3 mm (4.4 in)
1949
65.3 mm (2.6 in)
1950
74.9 mm (2.9 in)
1951
67.1 mm (2.6 in)
1952
70.1 mm (2.8 in)
1953
83.8 mm (3.3 in)
1954
66.5 mm (2.6 in)
1955
60.5 mm (2.4 in)
1956
35.1 mm (1.4 in)
1957
45.7 mm (1.8 in)
1958
42.2 mm (1.7 in)
1959
47.0 mm (1.9 in)
1960
95.3 mm (3.8 in)
1961
40.1 mm (1.6 in)
1962
50.3 mm (2.0 in)
1963
44.5 mm (1.8 in)
1964
40.6 mm (1.6 in)
1965
59.7 mm (2.4 in)
1966
62.5 mm (2.5 in)
1967
69.3 mm (2.7 in)
1968
73.2 mm (2.9 in)
1969
82.3 mm (3.2 in)
1970
54.4 mm (2.1 in)
1971
54.1 mm (2.1 in)
1972
65.0 mm (2.6 in)
1973
97.0 mm (3.8 in)
1974
63.5 mm (2.5 in)
1975
62.5 mm (2.5 in)
1976
106.2 mm (4.2 in)
1977
52.1 mm (2.1 in)
1978
43.9 mm (1.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Adams, 1893 to 1978. The record is 220.0 mm (8.7 in) in 1949, marked on the chart; the median year is 93.0 mm (3.7 in).
Wettest five days (Rx5day) at Adams by year
Year
Wettest five days (Rx5day)
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
0.0 mm (0.00 in)
1901
0.0 mm (0.00 in)
1930
44.0 mm (1.7 in)
1931
81.4 mm (3.2 in)
1932
77.5 mm (3.1 in)
1933
83.6 mm (3.3 in)
1934
83.8 mm (3.3 in)
1935
99.6 mm (3.9 in)
1936
51.7 mm (2.0 in)
1937
120.9 mm (4.8 in)
1938
133.4 mm (5.3 in)
1939
65.8 mm (2.6 in)
1940
100.3 mm (3.9 in)
1941
106.2 mm (4.2 in)
1942
85.1 mm (3.4 in)
1943
98.1 mm (3.9 in)
1944
103.1 mm (4.1 in)
1945
95.0 mm (3.7 in)
1946
81.3 mm (3.2 in)
1947
110.0 mm (4.3 in)
1948
165.9 mm (6.5 in)
1949
220.0 mm (8.7 in)
1950
83.6 mm (3.3 in)
1951
118.9 mm (4.7 in)
1952
93.0 mm (3.7 in)
1953
120.1 mm (4.7 in)
1954
97.8 mm (3.9 in)
1955
133.1 mm (5.2 in)
1956
59.2 mm (2.3 in)
1957
80.0 mm (3.1 in)
1958
65.6 mm (2.6 in)
1959
69.4 mm (2.7 in)
1960
141.6 mm (5.6 in)
1961
47.8 mm (1.9 in)
1962
77.5 mm (3.1 in)
1963
69.9 mm (2.8 in)
1964
50.1 mm (2.0 in)
1965
112.5 mm (4.4 in)
1966
72.8 mm (2.9 in)
1967
102.1 mm (4.0 in)
1968
97.4 mm (3.8 in)
1969
100.1 mm (3.9 in)
1970
66.1 mm (2.6 in)
1971
92.2 mm (3.6 in)
1972
93.2 mm (3.7 in)
1973
110.7 mm (4.4 in)
1974
98.5 mm (3.9 in)
1975
132.4 mm (5.2 in)
1976
149.8 mm (5.9 in)
1977
80.8 mm (3.2 in)
1978
75.9 mm (3.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Adams, 1893 to 1978. The record is 26 days in 1947, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Adams by year
Year
Longest dry spell (CDD)
1893
4 days
1894
3 days
1895
4 days
1896
2 days
1897
4 days
1898
2 days
1899
4 days
1900
6 days
1901
5 days
1930
17 days
1931
12 days
1932
18 days
1933
11 days
1934
13 days
1935
19 days
1936
13 days
1937
8 days
1938
21 days
1939
18 days
1940
11 days
1941
19 days
1942
14 days
1943
19 days
1944
16 days
1945
8 days
1946
12 days
1947
26 days
1948
13 days
1949
18 days
1950
16 days
1951
13 days
1952
25 days
1953
16 days
1954
13 days
1955
17 days
1956
18 days
1957
16 days
1958
14 days
1959
12 days
1960
18 days
1961
14 days
1962
17 days
1963
23 days
1964
24 days
1965
12 days
1966
18 days
1967
24 days
1968
26 days
1969
13 days
1970
18 days
1971
12 days
1972
14 days
1973
14 days
1974
15 days
1975
14 days
1976
17 days
1977
14 days
1978
15 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
53 years with a frost
Across 53 years with a frost, the median last spring frost at Adams falls on 15 May and the median first autumn frost on 26 September, which leaves a median of 134 days between them.
Fitted over all years, the growing season changes by -1.9 days per decade at this station.
Frost dates and growing season at Adams
Measure
Median, all years
Earliest period
Recent period (1947 to 1977)
Recent against earliest
Fitted trend
Last spring frost
15 May
n/a
16 May
n/a
+1.2 days per decade
First autumn frost
26 September
n/a
26 September
n/a
-0.7 days per decade
Growing days
134 days
n/a
136 days
n/a
-1.9 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
41 years, 1931 to 1977
A day with at least 60.1 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 119.9 mm (4.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Adams: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
60.1 mm (2.4 in)
5 years
77.2 mm (3.0 in)
10 years
88.0 mm (3.5 in)
25 years
101.2 mm (4.0 in)
50 years
110.7 mm (4.4 in)
Longer than the 41 years of record
100 years
119.9 mm (4.7 in)
Longer than the 41 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, 41 years of values from 1931 to 1977.
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: 106.2 mm (4.2 in) in 1941; 106.2 mm (4.2 in) in 1976; 97.0 mm (3.8 in) in 1973.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Adams standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Adams 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.