Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Nitchequon. 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 Nitchequon, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
3.9 C (39.0 F)
-49.4 C (-56.9 F)
n/a
n/a
Feb
5.6 C (42.1 F)
-48.3 C (-54.9 F)
n/a
n/a
Mar
10.4 C (50.7 F)
-45.0 C (-49.0 F)
n/a
n/a
Apr
13.3 C (55.9 F)
-35.0 C (-31.0 F)
n/a
n/a
May
26.1 C (79.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Jun
32.2 C (90.0 F)
-6.7 C (19.9 F)
n/a
n/a
Jul
31.1 C (88.0 F)
-2.2 C (28.0 F)
n/a
n/a
Aug
28.9 C (84.0 F)
-0.6 C (30.9 F)
n/a
n/a
Sep
26.1 C (79.0 F)
-8.3 C (17.1 F)
n/a
n/a
Oct
20.0 C (68.0 F)
-17.2 C (1.0 F)
n/a
n/a
Nov
9.4 C (48.9 F)
-35.0 C (-31.0 F)
n/a
n/a
Dec
6.7 C (44.1 F)
-46.7 C (-52.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Nitchequon still stand. 1951 holds the most, with 57.
Standing records at Nitchequon by the year they were set
Year set
Standing records
1942
13
1943
42
1944
40
1945
25
1946
48
1947
53
1948
29
1949
27
1950
43
1951
57
1952
36
1953
50
1954
38
1955
37
1956
46
1957
42
1958
39
1959
35
1960
42
1961
14
1962
24
1963
31
1964
19
1965
36
1966
28
1967
23
1968
36
1969
45
1970
42
1971
25
1972
56
1973
14
1974
32
1975
18
1976
48
1977
22
1978
36
1979
40
1980
33
1981
38
1982
29
1983
33
All-Time Record Progression
1 new records
1 all-time records were set at Nitchequon between 20 January 1975 and 20 January 1975. Each dot is a new record.
When Nitchequon set new all-time records
Date
Kind
Detail
1975-01-20
Record low maximum temperature
Record low maximum temperature -38.9 C (-38.0 F)
Wettest Day of Each Month
Oct: 59.7 mm (2.4 in)
The wettest day on record for each calendar month at Nitchequon. The most was 59.7 mm (2.4 in) on 24 October 1959.
Record daily precipitation for each month at Nitchequon
Month
Record daily precipitation (mm)
Date
Jan
22.9 mm (0.9 in)
30 January 1969
Feb
25.4 mm (1.0 in)
21 February 1953
Mar
50.8 mm (2.0 in)
25 March 1947
Apr
34.0 mm (1.3 in)
14 April 1981
May
45.7 mm (1.8 in)
28 May 1963
Jun
37.3 mm (1.5 in)
24 June 1965
Jul
58.2 mm (2.3 in)
29 July 1964
Aug
49.4 mm (1.9 in)
12 August 1981
Sep
54.9 mm (2.2 in)
30 September 1974
Oct
59.7 mm (2.4 in)
24 October 1959
Nov
36.4 mm (1.4 in)
18 November 1977
Dec
38.1 mm (1.5 in)
28 December 1969
Period of Record Coverage
1942 to 1983
Complete yearUnder 90 percent of days
42 years of record at Nitchequon, 1942 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1942.
Cooler than the station meanWarmer than the station mean
One stripe for each of 38 complete years at Nitchequon, 1944 to 1983. Blue stripes are years cooler than the station's own mean of -4.0 C (24.8 F); red stripes are warmer. The coolest year was 1972, at -7.0 C (19.4 F), and the warmest was 1981, at -2.0 C (28.3 F). The strongest colour marks a difference of 3.0 C (5.4 F).
Annual mean temperature at Nitchequon as warming stripes, 1944 to 1983
Year
Annual mean temperature
Difference from the station mean
1944
-3.5 C
+0.57 C
1946
-4.5 C
-0.52 C
1947
-2.9 C
+1.17 C
1948
-4.0 C
+0.05 C
1949
-4.1 C
-0.11 C
1950
-4.6 C
-0.60 C
1951
-3.0 C
+0.99 C
1952
-2.3 C
+1.72 C
1953
-2.7 C
+1.34 C
1954
-3.3 C
+0.68 C
1956
-4.8 C
-0.76 C
1957
-3.9 C
+0.14 C
1958
-3.3 C
+0.74 C
1959
-4.3 C
-0.32 C
1960
-3.0 C
+1.02 C
1961
-3.0 C
+0.99 C
1962
-4.4 C
-0.39 C
1963
-5.0 C
-0.94 C
1964
-4.6 C
-0.53 C
1965
-5.7 C
-1.72 C
1966
-2.7 C
+1.37 C
1967
-4.6 C
-0.55 C
1968
-3.5 C
+0.57 C
1969
-3.7 C
+0.35 C
1970
-4.6 C
-0.54 C
1971
-4.6 C
-0.56 C
1972
-7.0 C
-2.99 C
1973
-3.4 C
+0.65 C
1974
-5.7 C
-1.66 C
1975
-4.2 C
-0.22 C
1976
-5.1 C
-1.03 C
1977
-3.4 C
+0.63 C
1978
-5.5 C
-1.45 C
1979
-3.4 C
+0.60 C
1980
-4.5 C
-0.49 C
1981
-2.0 C
+1.99 C
1982
-4.7 C
-0.64 C
1983
-3.5 C
+0.54 C
The fitted trend in annual mean temperature here over 1944 to 1983 is -0.2 C (-0.5 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.4 F (-0.9 to 0.2) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Nitchequon
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.5 to 0.1) per decade
-0.4 F (-0.9 to 0.2) per decade
1944 to 1983
38
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.5 to 0.1) per decade
-0.4 F (-0.8 to 0.1) per decade
1944 to 1983
38
Not clearly different from zero
Mean daily minimum
-0.2 C (-0.6 to 0.1) per decade
-0.4 F (-1.0 to 0.2) per decade
1944 to 1983
38
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
1942 to 1983
Yearly extremes at Nitchequon: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
32.2 C (90.0 F)
1947
26.7 C (80.1 F)
42
Coldest night (TNn)
-49.4 C (-56.9 F)
1957
-44.1 C (-47.5 F)
42
Wettest day (Rx1day)
59.7 mm (2.4 in)
1959
34.9 mm (1.4 in)
42
Wettest five days (Rx5day)
101.2 mm (4.0 in)
1980
55.7 mm (2.2 in)
42
Longest dry spell (CDD)
37 days
1958
15 days
42
Hottest day (TXx)
The hottest day of the year at Nitchequon, 1942 to 1983. The record is 32.2 C (90.0 F) in 1947, marked on the chart; the median year is 26.7 C (80.1 F).
Hottest day (TXx) at Nitchequon by year
Year
Hottest day (TXx)
1942
18.9 C (66.0 F)
1943
28.9 C (84.0 F)
1944
31.1 C (88.0 F)
1945
27.2 C (81.0 F)
1946
28.9 C (84.0 F)
1947
32.2 C (90.0 F)
1948
26.1 C (79.0 F)
1949
27.2 C (81.0 F)
1950
26.1 C (79.0 F)
1951
25.0 C (77.0 F)
1952
28.9 C (84.0 F)
1953
31.1 C (88.0 F)
1954
27.2 C (81.0 F)
1955
28.9 C (84.0 F)
1956
25.6 C (78.1 F)
1957
26.1 C (79.0 F)
1958
22.8 C (73.0 F)
1959
28.9 C (84.0 F)
1960
27.8 C (82.0 F)
1961
25.6 C (78.1 F)
1962
27.2 C (81.0 F)
1963
26.1 C (79.0 F)
1964
26.1 C (79.0 F)
1965
22.2 C (72.0 F)
1966
25.0 C (77.0 F)
1967
27.2 C (81.0 F)
1968
24.4 C (75.9 F)
1969
23.9 C (75.0 F)
1970
29.4 C (84.9 F)
1971
24.4 C (75.9 F)
1972
26.7 C (80.1 F)
1973
26.7 C (80.1 F)
1974
26.7 C (80.1 F)
1975
28.9 C (84.0 F)
1976
29.4 C (84.9 F)
1977
24.9 C (76.8 F)
1978
23.8 C (74.8 F)
1979
26.1 C (79.0 F)
1980
24.0 C (75.2 F)
1981
26.2 C (79.2 F)
1982
27.2 C (81.0 F)
1983
30.0 C (86.0 F)
Coldest night (TNn)
The coldest night of the year at Nitchequon, 1942 to 1983. The record is -49.4 C (-56.9 F) in 1957, marked on the chart; the median year is -44.1 C (-47.5 F).
Coldest night (TNn) at Nitchequon by year
Year
Coldest night (TNn)
1942
-38.3 C (-36.9 F)
1943
-45.0 C (-49.0 F)
1944
-45.0 C (-49.0 F)
1945
-45.6 C (-50.1 F)
1946
-46.7 C (-52.1 F)
1947
-38.9 C (-38.0 F)
1948
-47.8 C (-54.0 F)
1949
-44.4 C (-47.9 F)
1950
-48.9 C (-56.0 F)
1951
-43.3 C (-45.9 F)
1952
-43.9 C (-47.0 F)
1953
-43.3 C (-45.9 F)
1954
-48.3 C (-54.9 F)
1955
-41.7 C (-43.1 F)
1956
-43.9 C (-47.0 F)
1957
-49.4 C (-56.9 F)
1958
-42.8 C (-45.0 F)
1959
-43.3 C (-45.9 F)
1960
-47.2 C (-53.0 F)
1961
-44.4 C (-47.9 F)
1962
-46.7 C (-52.1 F)
1963
-42.2 C (-44.0 F)
1964
-43.3 C (-45.9 F)
1965
-42.2 C (-44.0 F)
1966
-39.4 C (-38.9 F)
1967
-43.3 C (-45.9 F)
1968
-45.0 C (-49.0 F)
1969
-37.8 C (-36.0 F)
1970
-46.7 C (-52.1 F)
1971
-45.0 C (-49.0 F)
1972
-48.3 C (-54.9 F)
1973
-47.2 C (-53.0 F)
1974
-44.4 C (-47.9 F)
1975
-45.0 C (-49.0 F)
1976
-44.4 C (-47.9 F)
1977
-43.3 C (-45.9 F)
1978
-42.7 C (-44.9 F)
1979
-42.4 C (-44.3 F)
1980
-43.1 C (-45.6 F)
1981
-39.7 C (-39.5 F)
1982
-40.4 C (-40.7 F)
1983
-47.1 C (-52.8 F)
Wettest day (Rx1day)
The wettest day of the year at Nitchequon, 1942 to 1983. The record is 59.7 mm (2.4 in) in 1959, marked on the chart; the median year is 34.9 mm (1.4 in).
Wettest day (Rx1day) at Nitchequon by year
Year
Wettest day (Rx1day)
1942
21.1 mm (0.8 in)
1943
20.8 mm (0.8 in)
1944
34.5 mm (1.4 in)
1945
35.6 mm (1.4 in)
1946
37.3 mm (1.5 in)
1947
50.8 mm (2.0 in)
1948
27.4 mm (1.1 in)
1949
24.9 mm (1.0 in)
1950
43.4 mm (1.7 in)
1951
25.4 mm (1.0 in)
1952
33.0 mm (1.3 in)
1953
29.0 mm (1.1 in)
1954
35.3 mm (1.4 in)
1955
26.7 mm (1.1 in)
1956
40.9 mm (1.6 in)
1957
19.8 mm (0.8 in)
1958
25.7 mm (1.0 in)
1959
59.7 mm (2.4 in)
1960
18.3 mm (0.7 in)
1961
16.5 mm (0.6 in)
1962
24.6 mm (1.0 in)
1963
45.7 mm (1.8 in)
1964
58.2 mm (2.3 in)
1965
54.6 mm (2.1 in)
1966
45.5 mm (1.8 in)
1967
36.6 mm (1.4 in)
1968
32.5 mm (1.3 in)
1969
38.1 mm (1.5 in)
1970
25.9 mm (1.0 in)
1971
21.6 mm (0.9 in)
1972
35.3 mm (1.4 in)
1973
31.2 mm (1.2 in)
1974
54.9 mm (2.2 in)
1975
33.8 mm (1.3 in)
1976
20.8 mm (0.8 in)
1977
36.4 mm (1.4 in)
1978
38.1 mm (1.5 in)
1979
27.9 mm (1.1 in)
1980
56.4 mm (2.2 in)
1981
49.4 mm (1.9 in)
1982
46.0 mm (1.8 in)
1983
37.2 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Nitchequon, 1942 to 1983. The record is 101.2 mm (4.0 in) in 1980, marked on the chart; the median year is 55.7 mm (2.2 in).
Wettest five days (Rx5day) at Nitchequon by year
Year
Wettest five days (Rx5day)
1942
53.6 mm (2.1 in)
1943
36.3 mm (1.4 in)
1944
41.2 mm (1.6 in)
1945
65.8 mm (2.6 in)
1946
43.9 mm (1.7 in)
1947
64.8 mm (2.6 in)
1948
46.5 mm (1.8 in)
1949
40.8 mm (1.6 in)
1950
60.0 mm (2.4 in)
1951
48.4 mm (1.9 in)
1952
68.9 mm (2.7 in)
1953
55.0 mm (2.2 in)
1954
47.6 mm (1.9 in)
1955
44.5 mm (1.8 in)
1956
54.4 mm (2.1 in)
1957
54.9 mm (2.2 in)
1958
45.8 mm (1.8 in)
1959
86.4 mm (3.4 in)
1960
51.8 mm (2.0 in)
1961
38.2 mm (1.5 in)
1962
46.3 mm (1.8 in)
1963
99.8 mm (3.9 in)
1964
75.0 mm (3.0 in)
1965
91.7 mm (3.6 in)
1966
80.0 mm (3.1 in)
1967
72.9 mm (2.9 in)
1968
60.5 mm (2.4 in)
1969
68.6 mm (2.7 in)
1970
46.0 mm (1.8 in)
1971
39.9 mm (1.6 in)
1972
46.3 mm (1.8 in)
1973
56.4 mm (2.2 in)
1974
87.1 mm (3.4 in)
1975
50.9 mm (2.0 in)
1976
46.0 mm (1.8 in)
1977
58.4 mm (2.3 in)
1978
94.3 mm (3.7 in)
1979
60.0 mm (2.4 in)
1980
101.2 mm (4.0 in)
1981
77.4 mm (3.0 in)
1982
95.0 mm (3.7 in)
1983
81.0 mm (3.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Nitchequon, 1942 to 1983. The record is 37 days in 1958, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Nitchequon by year
Year
Longest dry spell (CDD)
1942
5 days
1943
11 days
1944
14 days
1945
15 days
1946
16 days
1947
15 days
1948
22 days
1949
8 days
1950
18 days
1951
9 days
1952
13 days
1953
14 days
1954
12 days
1955
24 days
1956
21 days
1957
18 days
1958
37 days
1959
12 days
1960
17 days
1961
24 days
1962
25 days
1963
12 days
1964
18 days
1965
16 days
1966
10 days
1967
17 days
1968
17 days
1969
14 days
1970
15 days
1971
19 days
1972
16 days
1973
12 days
1974
13 days
1975
14 days
1976
17 days
1977
21 days
1978
17 days
1979
12 days
1980
15 days
1981
11 days
1982
12 days
1983
10 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
38 years with a frost
Across 38 years with a frost, the median last spring frost at Nitchequon falls on 12 June and the median first autumn frost on 13 September, which leaves a median of 93 days between them.
Fitted over all years, the growing season changes by +2.8 days per decade at this station.
Frost dates and growing season at Nitchequon
Measure
Median, all years
Earliest period
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
12 June
n/a
12 June
n/a
-0.5 days per decade
First autumn frost
13 September
n/a
13 September
n/a
+2.2 days per decade
Growing days
93 days
n/a
95 days
n/a
+2.8 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, 1943 to 1983
A day with at least 34.2 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 69.3 mm (2.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Nitchequon: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
34.2 mm (1.3 in)
5 years
45.0 mm (1.8 in)
10 years
51.6 mm (2.0 in)
25 years
59.2 mm (2.3 in)
50 years
64.4 mm (2.5 in)
Longer than the 41 years of record
100 years
69.3 mm (2.7 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 1943 to 1983.
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: 59.7 mm (2.4 in) in 1959; 58.2 mm (2.3 in) in 1964; 56.4 mm (2.2 in) in 1980.
Download the Data
Data for Nitchequon standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nitchequon 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.