Record envelope, standing records and threshold days for Cummington Hill (USC00191774), Massachusetts, United States, with 32 years of record.
Key Facts for Cummington Hill
Cummington Hill (USC00191774) is a weather station in Massachusetts, United States at 42.47 latitude and -72.93 longitude, 491 m (1,610 ft) above sea level.
The station reports from 1963 to 1994, 32 years of record.
1,464 records set at Cummington Hill still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Cummington Hill set a daily record precipitation of 23.4 mm (0.9 in) on 29 January 1994.
About the Station
Location: Massachusetts, United States, 42.47 latitude, -72.93 longitude.
Elevation: 491 m (1,610 ft).
Period of record: 1963 to 1994, 32 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 Cummington Hill. 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 Cummington Hill, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.3 C (55.9 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
15.6 C (60.1 F)
-26.7 C (-16.1 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-22.8 C (-9.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-15.0 C (5.0 F)
n/a
n/a
May
30.6 C (87.1 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
32.8 C (91.0 F)
0.0 C (32.0 F)
n/a
n/a
Jul
33.9 C (93.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
33.9 C (93.0 F)
0.6 C (33.1 F)
n/a
n/a
Sep
31.7 C (89.1 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-16.1 C (3.0 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 Cummington Hill still stand. 1976 holds the most, with 74.
Standing records at Cummington Hill by the year they were set
Year set
Standing records
1963
48
1964
62
1965
60
1966
43
1967
70
1968
47
1969
25
1970
45
1971
39
1972
37
1973
45
1974
43
1975
37
1976
74
1977
46
1978
43
1979
70
1980
33
1981
43
1982
55
1983
39
1984
52
1985
24
1986
46
1987
56
1988
44
1989
46
1990
59
1991
51
1992
34
1993
42
1994
6
Wettest Day of Each Month
Jul: 154.4 mm (6.1 in)
The wettest day on record for each calendar month at Cummington Hill. The most was 154.4 mm (6.1 in) on 30 July 1986.
Record daily precipitation for each month at Cummington Hill
Month
Record daily precipitation (mm)
Date
Jan
57.2 mm (2.3 in)
9 January 1978
Feb
50.8 mm (2.0 in)
21 February 1981
Mar
66.8 mm (2.6 in)
22 March 1980
Apr
81.0 mm (3.2 in)
5 April 1987
May
88.9 mm (3.5 in)
30 May 1984
Jun
96.5 mm (3.8 in)
30 June 1973
Jul
154.4 mm (6.1 in)
30 July 1986
Aug
112.3 mm (4.4 in)
7 August 1990
Sep
86.1 mm (3.4 in)
28 September 1985
Oct
77.2 mm (3.0 in)
24 October 1990
Nov
51.1 mm (2.0 in)
29 November 1993
Dec
50.8 mm (2.0 in)
19 December 1986
Period of Record Coverage
1963 to 1994
Complete yearUnder 90 percent of days
32 years of record at Cummington Hill, 1963 to 1994. 4 years have data for under 90 percent of days and are left out of rankings: 1963, 1983, 1988, 1994.
Cooler than the station meanWarmer than the station mean
One stripe for each of 24 complete years at Cummington Hill, 1964 to 1992. Blue stripes are years cooler than the station's own mean of 7.0 C (44.5 F); red stripes are warmer. The coolest year was 1972, at 6.0 C (42.7 F), and the warmest was 1991, at 8.5 C (47.3 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Cummington Hill as warming stripes, 1964 to 1992
Year
Annual mean temperature
Difference from the station mean
1964
7.1 C
+0.19 C
1965
6.7 C
-0.28 C
1966
7.2 C
+0.22 C
1967
6.7 C
-0.21 C
1969
7.0 C
+0.05 C
1970
6.8 C
-0.17 C
1971
6.9 C
-0.05 C
1972
6.0 C
-0.98 C
1973
7.8 C
+0.82 C
1974
6.7 C
-0.26 C
1975
7.3 C
+0.34 C
1976
6.4 C
-0.60 C
1977
6.7 C
-0.23 C
1978
6.2 C
-0.77 C
1979
7.2 C
+0.23 C
1981
6.9 C
-0.05 C
1982
6.3 C
-0.66 C
1984
6.8 C
-0.18 C
1986
7.0 C
+0.06 C
1987
7.5 C
+0.51 C
1989
6.5 C
-0.49 C
1990
8.5 C
+1.56 C
1991
8.5 C
+1.56 C
1992
6.4 C
-0.58 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1963 to 1994
Yearly extremes at Cummington Hill: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
33.9 C (93.0 F)
1975
31.7 C (89.1 F)
32
Coldest night (TNn)
-28.9 C (-20.0 F)
1980
-24.4 C (-11.9 F)
32
Wettest day (Rx1day)
154.4 mm (6.1 in)
1986
66.9 mm (2.6 in)
32
Wettest five days (Rx5day)
230.7 mm (9.1 in)
1984
103.2 mm (4.1 in)
32
Longest dry spell (CDD)
34 days
1980
17 days
32
Hottest day (TXx)
The hottest day of the year at Cummington Hill, 1963 to 1994. The record is 33.9 C (93.0 F) in 1975, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Cummington Hill by year
Year
Hottest day (TXx)
1963
32.2 C (90.0 F)
1964
32.2 C (90.0 F)
1965
31.7 C (89.1 F)
1966
33.3 C (91.9 F)
1967
31.7 C (89.1 F)
1968
31.7 C (89.1 F)
1969
32.8 C (91.0 F)
1970
31.7 C (89.1 F)
1971
31.1 C (88.0 F)
1972
31.7 C (89.1 F)
1973
31.7 C (89.1 F)
1974
31.1 C (88.0 F)
1975
33.9 C (93.0 F)
1976
30.0 C (86.0 F)
1977
31.7 C (89.1 F)
1978
32.2 C (90.0 F)
1979
31.7 C (89.1 F)
1980
32.2 C (90.0 F)
1981
31.7 C (89.1 F)
1982
31.1 C (88.0 F)
1983
29.4 C (84.9 F)
1984
28.9 C (84.0 F)
1985
30.6 C (87.1 F)
1986
30.6 C (87.1 F)
1987
31.1 C (88.0 F)
1988
33.3 C (91.9 F)
1989
30.6 C (87.1 F)
1990
31.1 C (88.0 F)
1991
33.9 C (93.0 F)
1992
30.6 C (87.1 F)
1993
32.2 C (90.0 F)
1994
9.4 C (48.9 F)
Coldest night (TNn)
The coldest night of the year at Cummington Hill, 1963 to 1994. The record is -28.9 C (-20.0 F) in 1980, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Cummington Hill by year
Year
Coldest night (TNn)
1963
-22.2 C (-8.0 F)
1964
-18.9 C (-2.0 F)
1965
-26.1 C (-15.0 F)
1966
-25.0 C (-13.0 F)
1967
-24.4 C (-11.9 F)
1968
-27.2 C (-17.0 F)
1969
-24.4 C (-11.9 F)
1970
-23.9 C (-11.0 F)
1971
-24.4 C (-11.9 F)
1972
-25.0 C (-13.0 F)
1973
-23.3 C (-9.9 F)
1974
-22.8 C (-9.0 F)
1975
-22.8 C (-9.0 F)
1976
-27.8 C (-18.0 F)
1977
-26.7 C (-16.1 F)
1978
-21.1 C (-6.0 F)
1979
-26.7 C (-16.1 F)
1980
-28.9 C (-20.0 F)
1981
-26.1 C (-15.0 F)
1982
-25.6 C (-14.1 F)
1983
-25.0 C (-13.0 F)
1984
-22.8 C (-9.0 F)
1985
-22.2 C (-8.0 F)
1986
-23.3 C (-9.9 F)
1987
-25.6 C (-14.1 F)
1988
-26.1 C (-15.0 F)
1989
-22.2 C (-8.0 F)
1990
-22.8 C (-9.0 F)
1991
-21.7 C (-7.1 F)
1992
-21.1 C (-6.0 F)
1993
-23.3 C (-9.9 F)
1994
-27.8 C (-18.0 F)
Wettest day (Rx1day)
The wettest day of the year at Cummington Hill, 1963 to 1994. The record is 154.4 mm (6.1 in) in 1986, marked on the chart; the median year is 66.9 mm (2.6 in).
Wettest day (Rx1day) at Cummington Hill by year
Year
Wettest day (Rx1day)
1963
50.0 mm (2.0 in)
1964
42.4 mm (1.7 in)
1965
43.2 mm (1.7 in)
1966
55.9 mm (2.2 in)
1967
39.6 mm (1.6 in)
1968
70.9 mm (2.8 in)
1969
68.6 mm (2.7 in)
1970
49.8 mm (2.0 in)
1971
67.1 mm (2.6 in)
1972
59.2 mm (2.3 in)
1973
96.5 mm (3.8 in)
1974
48.5 mm (1.9 in)
1975
66.5 mm (2.6 in)
1976
65.5 mm (2.6 in)
1977
54.6 mm (2.1 in)
1978
106.2 mm (4.2 in)
1979
69.6 mm (2.7 in)
1980
66.8 mm (2.6 in)
1981
50.8 mm (2.0 in)
1982
73.7 mm (2.9 in)
1983
66.0 mm (2.6 in)
1984
88.9 mm (3.5 in)
1985
86.1 mm (3.4 in)
1986
154.4 mm (6.1 in)
1987
81.0 mm (3.2 in)
1988
95.3 mm (3.8 in)
1989
74.7 mm (2.9 in)
1990
112.3 mm (4.4 in)
1991
74.7 mm (2.9 in)
1992
53.8 mm (2.1 in)
1993
68.6 mm (2.7 in)
1994
27.9 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Cummington Hill, 1963 to 1994. The record is 230.7 mm (9.1 in) in 1984, marked on the chart; the median year is 103.2 mm (4.1 in).
Wettest five days (Rx5day) at Cummington Hill by year
Year
Wettest five days (Rx5day)
1963
90.4 mm (3.6 in)
1964
54.1 mm (2.1 in)
1965
77.5 mm (3.1 in)
1966
78.8 mm (3.1 in)
1967
65.8 mm (2.6 in)
1968
81.8 mm (3.2 in)
1969
111.0 mm (4.4 in)
1970
75.1 mm (3.0 in)
1971
114.1 mm (4.5 in)
1972
99.2 mm (3.9 in)
1973
141.2 mm (5.6 in)
1974
78.7 mm (3.1 in)
1975
138.6 mm (5.5 in)
1976
115.8 mm (4.6 in)
1977
85.1 mm (3.4 in)
1978
134.5 mm (5.3 in)
1979
129.4 mm (5.1 in)
1980
96.0 mm (3.8 in)
1981
104.6 mm (4.1 in)
1982
92.5 mm (3.6 in)
1983
101.8 mm (4.0 in)
1984
230.7 mm (9.1 in)
1985
106.4 mm (4.2 in)
1986
200.7 mm (7.9 in)
1987
115.0 mm (4.5 in)
1988
157.6 mm (6.2 in)
1989
124.2 mm (4.9 in)
1990
168.7 mm (6.6 in)
1991
142.2 mm (5.6 in)
1992
59.7 mm (2.4 in)
1993
83.8 mm (3.3 in)
1994
32.3 mm (1.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Cummington Hill, 1963 to 1994. The record is 34 days in 1980, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Cummington Hill by year
Year
Longest dry spell (CDD)
1963
23 days
1964
16 days
1965
15 days
1966
27 days
1967
12 days
1968
19 days
1969
16 days
1970
17 days
1971
12 days
1972
16 days
1973
21 days
1974
21 days
1975
15 days
1976
17 days
1977
17 days
1978
23 days
1979
16 days
1980
34 days
1981
25 days
1982
13 days
1983
16 days
1984
18 days
1985
19 days
1986
19 days
1987
29 days
1988
18 days
1989
24 days
1990
12 days
1991
15 days
1992
11 days
1993
17 days
1994
7 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
24 years with a frost
Across 24 years with a frost, the median last spring frost at Cummington Hill falls on 6 May and the median first autumn frost on 3 October, which leaves a median of 148 days between them.
Frost dates and growing season at Cummington Hill
Measure
Median, all years
Earliest period
Recent period (1964 to 1992)
Recent against earliest
Fitted trend
Last spring frost
6 May
n/a
6 May
n/a
n/a
First autumn frost
3 October
n/a
3 October
n/a
n/a
Growing days
148 days
n/a
148 days
n/a
n/a
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
30 years, 1964 to 1993
A day with at least 66.6 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 156.4 mm (6.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Cummington Hill: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
66.6 mm (2.6 in)
5 years
87.3 mm (3.4 in)
10 years
102.2 mm (4.0 in)
25 years
122.6 mm (4.8 in)
50 years
139.0 mm (5.5 in)
Longer than the 30 years of record
100 years
156.4 mm (6.2 in)
Longer than the 30 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, 30 years of values from 1964 to 1993.
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: 154.4 mm (6.1 in) in 1986; 112.3 mm (4.4 in) in 1990; 106.2 mm (4.2 in) in 1978.
Download the Data
Data for Cummington Hill standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cummington Hill 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.