Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Chesterfield. 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 Chesterfield, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
-0.6 C (30.9 F)
-51.2 C (-60.2 F)
n/a
n/a
Feb
-0.6 C (30.9 F)
-49.4 C (-56.9 F)
n/a
n/a
Mar
-1.1 C (30.0 F)
-46.7 C (-52.1 F)
n/a
n/a
Apr
5.6 C (42.1 F)
-38.9 C (-38.0 F)
n/a
n/a
May
10.6 C (51.1 F)
-27.2 C (-17.0 F)
n/a
n/a
Jun
25.6 C (78.1 F)
-15.0 C (5.0 F)
n/a
n/a
Jul
30.6 C (87.1 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
30.0 C (86.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
19.4 C (66.9 F)
-12.8 C (9.0 F)
n/a
n/a
Oct
9.4 C (48.9 F)
-30.0 C (-22.0 F)
n/a
n/a
Nov
9.4 C (48.9 F)
-38.9 C (-38.0 F)
n/a
n/a
Dec
0.0 C (32.0 F)
-47.8 C (-54.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Chesterfield still stand. 1935 holds the most, with 58.
Standing records at Chesterfield by the year they were set
Year set
Standing records
1930
12
1931
26
1932
17
1933
38
1934
26
1935
58
1936
43
1937
24
1938
27
1939
26
1940
25
1941
25
1942
47
1943
24
1944
7
1945
29
1946
31
1947
40
1948
50
1949
11
1950
27
1951
16
1952
21
1953
28
1954
26
1955
33
1956
36
1957
25
1958
29
1959
16
1960
32
1961
36
1962
34
1963
17
1964
27
1965
16
1966
37
1967
20
1968
23
1969
23
1970
28
1971
20
1972
32
1973
26
1974
23
1975
35
1976
26
1977
48
1978
47
1979
48
1980
18
1981
5
All-Time Record Progression
2 new records
2 all-time records were set at Chesterfield between 12 July 1964 and 21 July 1973. Each dot is a new record.
When Chesterfield set new all-time records
Date
Kind
Detail
1964-07-12
Record high minimum temperature
Record high minimum temperature 16.7 C (62.1 F)
1973-07-21
Record high maximum temperature
Record high maximum temperature 30.6 C (87.1 F)
Wettest Day of Each Month
Jul: 57.9 mm (2.3 in)
The wettest day on record for each calendar month at Chesterfield. The most was 57.9 mm (2.3 in) on 18 July 1934.
Record daily precipitation for each month at Chesterfield
Month
Record daily precipitation (mm)
Date
Jan
10.9 mm (0.4 in)
18 January 1945
Feb
15.2 mm (0.6 in)
28 February 1932
Mar
20.3 mm (0.8 in)
18 March 1945
Apr
27.9 mm (1.1 in)
8 April 1932
May
23.6 mm (0.9 in)
24 May 1966
Jun
39.1 mm (1.5 in)
25 June 1931
Jul
57.9 mm (2.3 in)
18 July 1934
Aug
39.1 mm (1.5 in)
16 August 1932
Sep
36.6 mm (1.4 in)
6 September 1970
Oct
30.5 mm (1.2 in)
19 October 1971
Nov
25.9 mm (1.0 in)
30 November 1932
Dec
27.9 mm (1.1 in)
15 December 1952
Period of Record Coverage
1930 to 1981
Complete yearUnder 90 percent of days
52 years of record at Chesterfield, 1930 to 1981. 3 years have data for under 90 percent of days and are left out of rankings: 1930, 1979, 1981.
Cooler than the station meanWarmer than the station mean
One stripe for each of 45 complete years at Chesterfield, 1931 to 1980. Blue stripes are years cooler than the station's own mean of -11.6 C (11.1 F); red stripes are warmer. The coolest year was 1972, at -14.6 C (5.8 F), and the warmest was 1977, at -9.5 C (14.9 F). The strongest colour marks a difference of 3.0 C (5.4 F).
Annual mean temperature at Chesterfield as warming stripes, 1931 to 1980
Year
Annual mean temperature
Difference from the station mean
1931
-10.4 C
+1.23 C
1932
-12.0 C
-0.43 C
1933
-13.4 C
-1.85 C
1934
-12.8 C
-1.24 C
1935
-12.8 C
-1.18 C
1936
-13.3 C
-1.74 C
1937
-11.1 C
+0.49 C
1938
-10.1 C
+1.48 C
1939
-12.0 C
-0.43 C
1940
-10.4 C
+1.24 C
1941
-11.8 C
-0.21 C
1942
-11.8 C
-0.19 C
1946
-11.8 C
-0.21 C
1947
-10.2 C
+1.36 C
1948
-11.0 C
+0.59 C
1950
-12.5 C
-0.94 C
1951
-11.1 C
+0.47 C
1952
-10.4 C
+1.24 C
1953
-10.1 C
+1.51 C
1954
-10.8 C
+0.82 C
1955
-11.0 C
+0.62 C
1956
-12.4 C
-0.76 C
1957
-12.3 C
-0.75 C
1958
-11.1 C
+0.47 C
1959
-11.9 C
-0.30 C
1960
-10.9 C
+0.72 C
1961
-11.6 C
-0.01 C
1962
-13.1 C
-1.52 C
1963
-12.0 C
-0.40 C
1964
-12.4 C
-0.82 C
1965
-11.9 C
-0.28 C
1966
-11.9 C
-0.34 C
1967
-12.2 C
-0.59 C
1968
-10.9 C
+0.70 C
1969
-10.6 C
+1.04 C
1970
-11.8 C
-0.19 C
1971
-10.2 C
+1.39 C
1972
-14.6 C
-2.97 C
1973
-10.3 C
+1.34 C
1974
-12.5 C
-0.89 C
1975
-11.4 C
+0.22 C
1976
-11.9 C
-0.30 C
1977
-9.5 C
+2.08 C
1978
-12.8 C
-1.24 C
1980
-10.9 C
+0.65 C
The fitted trend in annual mean temperature here over 1931 to 1980 is 0.05 C (-0.18 to 0.27) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.3 to 0.5) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Chesterfield
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.05 C (-0.18 to 0.27) per decade
0.1 F (-0.3 to 0.5) per decade
1931 to 1980
45
Not clearly different from zero
Mean daily maximum
0.1 C (-0.1 to 0.3) per decade
0.1 F (-0.3 to 0.6) per decade
1931 to 1980
45
Not clearly different from zero
Mean daily minimum
0.01 C (-0.21 to 0.23) per decade
0.02 F (-0.38 to 0.42) per decade
1931 to 1980
45
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
1930 to 1981
Yearly extremes at Chesterfield: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
30.6 C (87.1 F)
1973
24.3 C (75.7 F)
52
Coldest night (TNn)
-51.2 C (-60.2 F)
1935
-45.6 C (-50.1 F)
52
Wettest day (Rx1day)
57.9 mm (2.3 in)
1934
21.4 mm (0.8 in)
52
Wettest five days (Rx5day)
72.1 mm (2.8 in)
1932
35.7 mm (1.4 in)
52
Longest dry spell (CDD)
73 days
1952
39 days
52
Hottest day (TXx)
The hottest day of the year at Chesterfield, 1930 to 1981. The record is 30.6 C (87.1 F) in 1973, marked on the chart; the median year is 24.3 C (75.7 F).
Hottest day (TXx) at Chesterfield by year
Year
Hottest day (TXx)
1930
13.3 C (55.9 F)
1931
23.3 C (73.9 F)
1932
26.7 C (80.1 F)
1933
21.1 C (70.0 F)
1934
25.0 C (77.0 F)
1935
26.7 C (80.1 F)
1936
26.7 C (80.1 F)
1937
23.9 C (75.0 F)
1938
25.0 C (77.0 F)
1939
20.0 C (68.0 F)
1940
26.1 C (79.0 F)
1941
25.0 C (77.0 F)
1942
26.1 C (79.0 F)
1943
23.3 C (73.9 F)
1944
23.3 C (73.9 F)
1945
20.0 C (68.0 F)
1946
28.9 C (84.0 F)
1947
20.0 C (68.0 F)
1948
30.0 C (86.0 F)
1949
22.8 C (73.0 F)
1950
23.3 C (73.9 F)
1951
23.3 C (73.9 F)
1952
23.3 C (73.9 F)
1953
25.0 C (77.0 F)
1954
25.6 C (78.1 F)
1955
28.3 C (82.9 F)
1956
23.9 C (75.0 F)
1957
26.1 C (79.0 F)
1958
21.1 C (70.0 F)
1959
21.7 C (71.1 F)
1960
24.4 C (75.9 F)
1961
25.6 C (78.1 F)
1962
26.1 C (79.0 F)
1963
22.8 C (73.0 F)
1964
29.4 C (84.9 F)
1965
23.9 C (75.0 F)
1966
27.2 C (81.0 F)
1967
22.2 C (72.0 F)
1968
20.6 C (69.1 F)
1969
26.1 C (79.0 F)
1970
24.4 C (75.9 F)
1971
21.1 C (70.0 F)
1972
21.1 C (70.0 F)
1973
30.6 C (87.1 F)
1974
26.7 C (80.1 F)
1975
24.4 C (75.9 F)
1976
30.6 C (87.1 F)
1977
21.5 C (70.7 F)
1978
19.6 C (67.3 F)
1979
27.4 C (81.3 F)
1980
24.1 C (75.4 F)
1981
-5.8 C (21.6 F)
Coldest night (TNn)
The coldest night of the year at Chesterfield, 1930 to 1981. The record is -51.2 C (-60.2 F) in 1935, marked on the chart; the median year is -45.6 C (-50.1 F).
Coldest night (TNn) at Chesterfield by year
Year
Coldest night (TNn)
1930
-37.8 C (-36.0 F)
1931
-45.6 C (-50.1 F)
1932
-47.2 C (-53.0 F)
1933
-46.1 C (-51.0 F)
1934
-47.8 C (-54.0 F)
1935
-51.2 C (-60.2 F)
1936
-45.6 C (-50.1 F)
1937
-45.0 C (-49.0 F)
1938
-43.9 C (-47.0 F)
1939
-46.1 C (-51.0 F)
1940
-42.2 C (-44.0 F)
1941
-43.9 C (-47.0 F)
1942
-45.6 C (-50.1 F)
1943
-45.6 C (-50.1 F)
1944
-39.4 C (-38.9 F)
1945
-43.9 C (-47.0 F)
1946
-46.7 C (-52.1 F)
1947
-45.0 C (-49.0 F)
1948
-44.4 C (-47.9 F)
1949
-45.6 C (-50.1 F)
1950
-46.7 C (-52.1 F)
1951
-45.6 C (-50.1 F)
1952
-45.0 C (-49.0 F)
1953
-47.8 C (-54.0 F)
1954
-46.7 C (-52.1 F)
1955
-49.4 C (-56.9 F)
1956
-42.8 C (-45.0 F)
1957
-47.8 C (-54.0 F)
1958
-46.1 C (-51.0 F)
1959
-41.1 C (-42.0 F)
1960
-45.0 C (-49.0 F)
1961
-43.3 C (-45.9 F)
1962
-48.3 C (-54.9 F)
1963
-44.4 C (-47.9 F)
1964
-46.1 C (-51.0 F)
1965
-44.4 C (-47.9 F)
1966
-48.9 C (-56.0 F)
1967
-45.6 C (-50.1 F)
1968
-44.4 C (-47.9 F)
1969
-43.3 C (-45.9 F)
1970
-48.9 C (-56.0 F)
1971
-41.7 C (-43.1 F)
1972
-46.7 C (-52.1 F)
1973
-46.7 C (-52.1 F)
1974
-45.6 C (-50.1 F)
1975
-48.3 C (-54.9 F)
1976
-43.3 C (-45.9 F)
1977
-45.0 C (-49.0 F)
1978
-43.4 C (-46.1 F)
1979
-49.3 C (-56.7 F)
1980
-44.5 C (-48.1 F)
1981
-39.0 C (-38.2 F)
Wettest day (Rx1day)
The wettest day of the year at Chesterfield, 1930 to 1981. The record is 57.9 mm (2.3 in) in 1934, marked on the chart; the median year is 21.4 mm (0.8 in).
Wettest day (Rx1day) at Chesterfield by year
Year
Wettest day (Rx1day)
1930
8.6 mm (0.34 in)
1931
39.1 mm (1.5 in)
1932
44.5 mm (1.8 in)
1933
32.5 mm (1.3 in)
1934
57.9 mm (2.3 in)
1935
15.2 mm (0.6 in)
1936
22.1 mm (0.9 in)
1937
29.0 mm (1.1 in)
1938
12.7 mm (0.5 in)
1939
15.2 mm (0.6 in)
1940
21.1 mm (0.8 in)
1941
13.7 mm (0.5 in)
1942
20.3 mm (0.8 in)
1943
22.9 mm (0.9 in)
1944
24.9 mm (1.0 in)
1945
20.3 mm (0.8 in)
1946
24.9 mm (1.0 in)
1947
22.6 mm (0.9 in)
1948
32.5 mm (1.3 in)
1949
21.6 mm (0.9 in)
1950
18.0 mm (0.7 in)
1951
10.2 mm (0.4 in)
1952
33.3 mm (1.3 in)
1953
13.7 mm (0.5 in)
1954
24.1 mm (0.9 in)
1955
16.0 mm (0.6 in)
1956
13.5 mm (0.5 in)
1957
8.9 mm (0.35 in)
1958
18.3 mm (0.7 in)
1959
33.8 mm (1.3 in)
1960
19.8 mm (0.8 in)
1961
23.9 mm (0.9 in)
1962
14.2 mm (0.6 in)
1963
14.0 mm (0.6 in)
1964
17.3 mm (0.7 in)
1965
28.2 mm (1.1 in)
1966
23.6 mm (0.9 in)
1967
32.5 mm (1.3 in)
1968
21.1 mm (0.8 in)
1969
29.0 mm (1.1 in)
1970
50.8 mm (2.0 in)
1971
30.5 mm (1.2 in)
1972
23.4 mm (0.9 in)
1973
31.8 mm (1.3 in)
1974
16.5 mm (0.6 in)
1975
18.8 mm (0.7 in)
1976
19.3 mm (0.8 in)
1977
13.1 mm (0.5 in)
1978
35.4 mm (1.4 in)
1979
13.8 mm (0.5 in)
1980
30.0 mm (1.2 in)
1981
6.8 mm (0.27 in)
Wettest five days (Rx5day)
The wettest five days of the year at Chesterfield, 1930 to 1981. The record is 72.1 mm (2.8 in) in 1932, marked on the chart; the median year is 35.7 mm (1.4 in).
Wettest five days (Rx5day) at Chesterfield by year
Year
Wettest five days (Rx5day)
1930
11.1 mm (0.4 in)
1931
50.2 mm (2.0 in)
1932
72.1 mm (2.8 in)
1933
40.4 mm (1.6 in)
1934
65.9 mm (2.6 in)
1935
20.6 mm (0.8 in)
1936
31.7 mm (1.2 in)
1937
59.0 mm (2.3 in)
1938
32.5 mm (1.3 in)
1939
35.3 mm (1.4 in)
1940
40.2 mm (1.6 in)
1941
21.6 mm (0.9 in)
1942
41.9 mm (1.6 in)
1943
24.9 mm (1.0 in)
1944
35.6 mm (1.4 in)
1945
24.7 mm (1.0 in)
1946
35.8 mm (1.4 in)
1947
34.8 mm (1.4 in)
1948
65.3 mm (2.6 in)
1949
43.7 mm (1.7 in)
1950
23.4 mm (0.9 in)
1951
18.5 mm (0.7 in)
1952
57.6 mm (2.3 in)
1953
24.9 mm (1.0 in)
1954
37.8 mm (1.5 in)
1955
37.3 mm (1.5 in)
1956
28.7 mm (1.1 in)
1957
16.2 mm (0.6 in)
1958
43.2 mm (1.7 in)
1959
52.3 mm (2.1 in)
1960
21.6 mm (0.9 in)
1961
55.3 mm (2.2 in)
1962
27.5 mm (1.1 in)
1963
26.2 mm (1.0 in)
1964
20.1 mm (0.8 in)
1965
52.6 mm (2.1 in)
1966
37.1 mm (1.5 in)
1967
45.0 mm (1.8 in)
1968
28.9 mm (1.1 in)
1969
40.2 mm (1.6 in)
1970
69.4 mm (2.7 in)
1971
41.6 mm (1.6 in)
1972
47.5 mm (1.9 in)
1973
57.7 mm (2.3 in)
1974
26.4 mm (1.0 in)
1975
30.7 mm (1.2 in)
1976
34.6 mm (1.4 in)
1977
29.0 mm (1.1 in)
1978
61.8 mm (2.4 in)
1979
20.9 mm (0.8 in)
1980
61.1 mm (2.4 in)
1981
13.4 mm (0.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Chesterfield, 1930 to 1981. The record is 73 days in 1952, marked on the chart; the median year is 39 days.
Longest dry spell (CDD) at Chesterfield by year
Year
Longest dry spell (CDD)
1930
38 days
1931
34 days
1932
50 days
1933
50 days
1934
49 days
1935
39 days
1936
30 days
1937
17 days
1938
19 days
1939
18 days
1940
27 days
1941
21 days
1942
20 days
1943
65 days
1944
52 days
1945
36 days
1946
27 days
1947
35 days
1948
43 days
1949
47 days
1950
47 days
1951
29 days
1952
73 days
1953
35 days
1954
39 days
1955
56 days
1956
35 days
1957
44 days
1958
38 days
1959
47 days
1960
59 days
1961
31 days
1962
59 days
1963
57 days
1964
53 days
1965
41 days
1966
29 days
1967
36 days
1968
21 days
1969
36 days
1970
52 days
1971
52 days
1972
42 days
1973
30 days
1974
41 days
1975
34 days
1976
52 days
1977
31 days
1978
51 days
1979
37 days
1980
39 days
1981
18 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
45 years with a frost
Across 45 years with a frost, the median last spring frost at Chesterfield falls on 25 June and the median first autumn frost on 31 August, which leaves a median of 69 days between them.
Fitted over all years, the growing season changes by -0.2 days per decade at this station.
Frost dates and growing season at Chesterfield
Measure
Median, all years
Earliest period
Recent period (1950 to 1980)
Recent against earliest
Fitted trend
Last spring frost
25 June
n/a
25 June
n/a
-0.4 days per decade
First autumn frost
31 August
n/a
31 August
n/a
-0.6 days per decade
Growing days
69 days
n/a
68 days
n/a
-0.2 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
47 years, 1931 to 1980
A day with at least 22.3 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 58.9 mm (2.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Chesterfield: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
22.3 mm (0.9 in)
5 years
31.4 mm (1.2 in)
10 years
37.7 mm (1.5 in)
25 years
46.0 mm (1.8 in)
50 years
52.4 mm (2.1 in)
Longer than the 47 years of record
100 years
58.9 mm (2.3 in)
Longer than the 47 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, 47 years of values from 1931 to 1980.
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: 57.9 mm (2.3 in) in 1934; 50.8 mm (2.0 in) in 1970; 44.5 mm (1.8 in) in 1932.
Download the Data
Data for Chesterfield standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chesterfield 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.