Record envelope, standing records and threshold days for Chemult (USC00351546), Oregon, United States, with 82 years of record.
Key Facts for Chemult
Chemult (USC00351546) is a weather station in Oregon, United States at 43.23 latitude and -121.79 longitude, 1,451 m (4,760 ft) above sea level.
The station reports from 1937 to 2018, 82 years of record.
1,464 records set at Chemult still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Chemult set a daily record low minimum temperature of -15.0 C (5.0 F) on 10 November 2018.
About the Station
Location: Oregon, United States, 43.23 latitude, -121.79 longitude.
Elevation: 1,451 m (4,760 ft).
Period of record: 1937 to 2018, 82 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 Chemult. 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 Chemult, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.7 C (62.1 F)
-34.4 C (-29.9 F)
n/a
n/a
Feb
18.3 C (64.9 F)
-32.8 C (-27.0 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-17.8 C (0.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-12.2 C (10.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-8.3 C (17.1 F)
n/a
n/a
Jul
39.4 C (102.9 F)
-6.7 C (19.9 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-10.0 C (14.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-12.8 C (9.0 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Chemult still stand. 1949 holds the most, with 49.
Standing records at Chemult by the year they were set
Year set
Standing records
1937
27
1938
29
1939
43
1940
18
1941
12
1942
19
1943
26
1944
18
1945
25
1946
18
1947
21
1948
18
1949
49
1950
18
1951
29
1952
26
1953
10
1954
13
1955
29
1956
18
1957
12
1958
16
1959
14
1960
20
1961
14
1962
24
1963
25
1964
11
1965
14
1966
13
1967
11
1968
17
1969
22
1970
21
1971
21
1972
38
1973
24
1974
23
1975
14
1976
13
1977
13
1978
16
1979
14
1980
21
1981
11
1982
13
1983
13
1984
2
1985
28
1986
22
1987
25
1988
32
1989
17
1990
8
1991
5
1992
14
1993
18
1994
20
1995
14
1996
26
1997
7
1998
17
1999
7
2000
5
2001
13
2002
17
2003
21
2004
4
2005
9
2006
13
2007
14
2008
29
2009
22
2010
11
2011
13
2012
13
2013
13
2014
12
2015
23
2016
11
2017
14
2018
11
All-Time Record Progression
5 new records
5 all-time records were set at Chemult between 8 December 1972 and 20 December 2017. Each dot is a new record.
When Chemult set new all-time records
Date
Kind
Detail
1972-12-08
Record low maximum temperature
Record low maximum temperature -16.1 C (3.0 F)
1977-08-02
Record high minimum temperature
Record high minimum temperature 16.7 C (62.1 F)
1982-02-15
Record daily precipitation
Record daily precipitation 84.3 mm (3.3 in)
2002-07-13
Record high maximum temperature
Record high maximum temperature 39.4 C (102.9 F)
2017-12-20
Record daily precipitation
Record daily precipitation 88.9 mm (3.5 in)
Wettest Day of Each Month
Jan: 88.9 mm (3.5 in)
The wettest day on record for each calendar month at Chemult. The most was 88.9 mm (3.5 in) on 25 January 2018.
Record daily precipitation for each month at Chemult
Month
Record daily precipitation (mm)
Date
Jan
88.9 mm (3.5 in)
25 January 2018
Feb
84.3 mm (3.3 in)
15 February 1982
Mar
49.3 mm (1.9 in)
22 March 1938
Apr
42.9 mm (1.7 in)
13 April 1937
May
30.5 mm (1.2 in)
8 May 1979
Jun
57.7 mm (2.3 in)
11 June 1950
Jul
49.0 mm (1.9 in)
15 July 1940
Aug
54.4 mm (2.1 in)
23 August 2003
Sep
53.3 mm (2.1 in)
30 September 2013
Oct
59.2 mm (2.3 in)
19 October 2007
Nov
75.7 mm (3.0 in)
22 November 1953
Dec
88.9 mm (3.5 in)
20 December 2017
Period of Record Coverage
1937 to 2018
Complete yearUnder 90 percent of days
82 years of record at Chemult, 1937 to 2018. 26 years have data for under 90 percent of days and are left out of rankings: 1948, 1950, 1951, 1982, 1983, 1984, 1985, 1986 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 55 complete years at Chemult, 1938 to 2015. Blue stripes are years cooler than the station's own mean of 5.6 C (42.1 F); red stripes are warmer. The coolest year was 1949, at 4.1 C (39.4 F), and the warmest was 2003, at 6.9 C (44.3 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Chemult as warming stripes, 1938 to 2015
Year
Annual mean temperature
Difference from the station mean
1938
4.5 C
-1.05 C
1939
4.9 C
-0.66 C
1941
5.7 C
+0.09 C
1942
4.8 C
-0.75 C
1943
5.0 C
-0.55 C
1944
4.6 C
-1.01 C
1945
5.4 C
-0.16 C
1946
4.8 C
-0.79 C
1947
5.5 C
-0.11 C
1949
4.1 C
-1.46 C
1952
5.4 C
-0.19 C
1953
5.8 C
+0.19 C
1954
5.6 C
+0.05 C
1955
4.7 C
-0.92 C
1956
5.2 C
-0.40 C
1957
5.1 C
-0.53 C
1958
6.7 C
+1.14 C
1959
5.8 C
+0.25 C
1960
5.6 C
-0.03 C
1961
6.3 C
+0.66 C
1962
5.6 C
+0.03 C
1963
6.1 C
+0.49 C
1965
6.0 C
+0.38 C
1966
5.9 C
+0.34 C
1967
6.2 C
+0.56 C
1968
5.6 C
0.00 C
1969
5.4 C
-0.17 C
1970
5.5 C
-0.08 C
1971
5.0 C
-0.64 C
1972
5.3 C
-0.34 C
1973
5.6 C
+0.02 C
1974
5.5 C
-0.13 C
1975
4.8 C
-0.75 C
1976
5.2 C
-0.35 C
1977
5.8 C
+0.18 C
1978
5.3 C
-0.27 C
1979
5.9 C
+0.32 C
1980
6.0 C
+0.43 C
1981
6.7 C
+1.15 C
1996
6.2 C
+0.57 C
1998
6.0 C
+0.38 C
1999
5.5 C
-0.09 C
2001
6.3 C
+0.67 C
2002
6.1 C
+0.47 C
2003
6.9 C
+1.26 C
2005
5.9 C
+0.31 C
2006
5.6 C
+0.04 C
2007
5.9 C
+0.33 C
2008
5.2 C
-0.40 C
2009
5.4 C
-0.18 C
2010
5.4 C
-0.15 C
2012
5.5 C
-0.05 C
2013
5.5 C
-0.14 C
2014
6.6 C
+1.05 C
2015
6.7 C
+1.09 C
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1938 to 2015. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Chemult
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (0.1 to 0.2) per decade
0.2 F (0.1 to 0.3) per decade
1938 to 2015
55
Rise
Mean daily maximum
0.04 C (-0.03 to 0.11) per decade
0.1 F (-0.1 to 0.2) per decade
1938 to 2015
55
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.5) per decade
1938 to 2015
55
Rise
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
1937 to 2018
Yearly extremes at Chemult: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.4 C (102.9 F)
2002
35.6 C (96.1 F)
82
Coldest night (TNn)
-34.4 C (-29.9 F)
1943
-26.1 C (-15.0 F)
82
Wettest day (Rx1day)
88.9 mm (3.5 in)
2017
43.2 mm (1.7 in)
82
Wettest five days (Rx5day)
233.2 mm (9.2 in)
1964
90.5 mm (3.6 in)
82
Longest dry spell (CDD)
88 days
2012
38 days
82
Hottest day (TXx)
The hottest day of the year at Chemult, 1937 to 2018. The record is 39.4 C (102.9 F) in 2002, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Chemult by year
Year
Hottest day (TXx)
1937
36.7 C (98.1 F)
1938
37.2 C (99.0 F)
1939
37.8 C (100.0 F)
1940
36.1 C (97.0 F)
1941
33.3 C (91.9 F)
1942
35.6 C (96.1 F)
1943
33.9 C (93.0 F)
1944
33.9 C (93.0 F)
1945
36.7 C (98.1 F)
1946
38.9 C (102.0 F)
1947
31.7 C (89.1 F)
1948
33.3 C (91.9 F)
1949
34.4 C (93.9 F)
1950
36.7 C (98.1 F)
1951
38.9 C (102.0 F)
1952
35.0 C (95.0 F)
1953
32.8 C (91.0 F)
1954
33.9 C (93.0 F)
1955
35.6 C (96.1 F)
1956
32.8 C (91.0 F)
1957
31.7 C (89.1 F)
1958
33.3 C (91.9 F)
1959
35.6 C (96.1 F)
1960
36.1 C (97.0 F)
1961
36.7 C (98.1 F)
1962
32.8 C (91.0 F)
1963
31.7 C (89.1 F)
1964
34.4 C (93.9 F)
1965
33.9 C (93.0 F)
1966
33.9 C (93.0 F)
1967
35.0 C (95.0 F)
1968
34.4 C (93.9 F)
1969
32.2 C (90.0 F)
1970
33.3 C (91.9 F)
1971
35.6 C (96.1 F)
1972
38.3 C (100.9 F)
1973
35.0 C (95.0 F)
1974
34.4 C (93.9 F)
1975
34.4 C (93.9 F)
1976
32.2 C (90.0 F)
1977
36.7 C (98.1 F)
1978
35.6 C (96.1 F)
1979
36.7 C (98.1 F)
1980
34.4 C (93.9 F)
1981
37.2 C (99.0 F)
1982
33.3 C (91.9 F)
1983
34.4 C (93.9 F)
1984
21.1 C (70.0 F)
1985
36.1 C (97.0 F)
1986
35.6 C (96.1 F)
1987
36.7 C (98.1 F)
1988
37.8 C (100.0 F)
1989
32.2 C (90.0 F)
1990
35.6 C (96.1 F)
1991
36.1 C (97.0 F)
1992
37.8 C (100.0 F)
1993
33.9 C (93.0 F)
1994
36.1 C (97.0 F)
1995
35.6 C (96.1 F)
1996
35.6 C (96.1 F)
1997
32.8 C (91.0 F)
1998
36.7 C (98.1 F)
1999
36.1 C (97.0 F)
2000
34.4 C (93.9 F)
2001
35.6 C (96.1 F)
2002
39.4 C (102.9 F)
2003
38.3 C (100.9 F)
2004
35.0 C (95.0 F)
2005
35.6 C (96.1 F)
2006
36.7 C (98.1 F)
2007
37.2 C (99.0 F)
2008
37.2 C (99.0 F)
2009
36.7 C (98.1 F)
2010
35.0 C (95.0 F)
2011
32.8 C (91.0 F)
2012
34.4 C (93.9 F)
2013
35.6 C (96.1 F)
2014
36.1 C (97.0 F)
2015
36.7 C (98.1 F)
2016
33.9 C (93.0 F)
2017
35.6 C (96.1 F)
2018
35.6 C (96.1 F)
Coldest night (TNn)
The coldest night of the year at Chemult, 1937 to 2018. The record is -34.4 C (-29.9 F) in 1943, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Chemult by year
Year
Coldest night (TNn)
1937
-23.3 C (-9.9 F)
1938
-28.9 C (-20.0 F)
1939
-30.6 C (-23.1 F)
1940
-24.4 C (-11.9 F)
1941
-23.9 C (-11.0 F)
1942
-28.9 C (-20.0 F)
1943
-34.4 C (-29.9 F)
1944
-28.9 C (-20.0 F)
1945
-25.0 C (-13.0 F)
1946
-27.8 C (-18.0 F)
1947
-28.9 C (-20.0 F)
1948
-31.1 C (-24.0 F)
1949
-33.3 C (-27.9 F)
1950
-33.3 C (-27.9 F)
1951
-31.7 C (-25.1 F)
1952
-28.9 C (-20.0 F)
1953
-18.9 C (-2.0 F)
1954
-26.1 C (-15.0 F)
1955
-32.2 C (-26.0 F)
1956
-32.2 C (-26.0 F)
1957
-30.6 C (-23.1 F)
1958
-18.9 C (-2.0 F)
1959
-26.7 C (-16.1 F)
1960
-27.2 C (-17.0 F)
1961
-22.2 C (-8.0 F)
1962
-32.2 C (-26.0 F)
1963
-26.1 C (-15.0 F)
1964
-27.8 C (-18.0 F)
1965
-21.7 C (-7.1 F)
1966
-22.8 C (-9.0 F)
1967
-27.2 C (-17.0 F)
1968
-24.4 C (-11.9 F)
1969
-27.8 C (-18.0 F)
1970
-25.6 C (-14.1 F)
1971
-26.1 C (-15.0 F)
1972
-34.4 C (-29.9 F)
1973
-26.1 C (-15.0 F)
1974
-28.9 C (-20.0 F)
1975
-25.6 C (-14.1 F)
1976
-20.6 C (-5.1 F)
1977
-25.6 C (-14.1 F)
1978
-28.3 C (-18.9 F)
1979
-28.3 C (-18.9 F)
1980
-28.9 C (-20.0 F)
1981
-17.8 C (0.0 F)
1982
-25.0 C (-13.0 F)
1983
-32.8 C (-27.0 F)
1984
-25.6 C (-14.1 F)
1985
-28.9 C (-20.0 F)
1986
-18.9 C (-2.0 F)
1987
-26.7 C (-16.1 F)
1988
-28.9 C (-20.0 F)
1989
-33.3 C (-27.9 F)
1990
-28.9 C (-20.0 F)
1991
-16.1 C (3.0 F)
1992
-20.6 C (-5.1 F)
1993
-28.9 C (-20.0 F)
1994
-23.9 C (-11.0 F)
1995
-21.1 C (-6.0 F)
1996
-19.4 C (-2.9 F)
1997
-22.2 C (-8.0 F)
1998
-32.2 C (-26.0 F)
1999
-22.2 C (-8.0 F)
2000
-17.8 C (0.0 F)
2001
-18.3 C (-0.9 F)
2002
-25.6 C (-14.1 F)
2003
-18.3 C (-0.9 F)
2004
-17.8 C (0.0 F)
2005
-25.0 C (-13.0 F)
2006
-26.1 C (-15.0 F)
2007
-25.0 C (-13.0 F)
2008
-26.1 C (-15.0 F)
2009
-28.3 C (-18.9 F)
2010
-28.3 C (-18.9 F)
2011
-28.9 C (-20.0 F)
2012
-21.7 C (-7.1 F)
2013
-33.3 C (-27.9 F)
2014
-22.2 C (-8.0 F)
2015
-24.4 C (-11.9 F)
2016
-28.3 C (-18.9 F)
2017
-17.8 C (0.0 F)
2018
-25.6 C (-14.1 F)
Wettest day (Rx1day)
The wettest day of the year at Chemult, 1937 to 2018. The record is 88.9 mm (3.5 in) in 2017, marked on the chart; the median year is 43.2 mm (1.7 in).
Wettest day (Rx1day) at Chemult by year
Year
Wettest day (Rx1day)
1937
44.5 mm (1.8 in)
1938
49.3 mm (1.9 in)
1939
53.6 mm (2.1 in)
1940
49.0 mm (1.9 in)
1941
43.2 mm (1.7 in)
1942
72.6 mm (2.9 in)
1943
47.0 mm (1.9 in)
1944
43.2 mm (1.7 in)
1945
81.8 mm (3.2 in)
1946
36.1 mm (1.4 in)
1947
29.5 mm (1.2 in)
1948
53.1 mm (2.1 in)
1949
57.4 mm (2.3 in)
1950
76.2 mm (3.0 in)
1951
29.5 mm (1.2 in)
1952
31.5 mm (1.2 in)
1953
75.7 mm (3.0 in)
1954
43.2 mm (1.7 in)
1955
54.4 mm (2.1 in)
1956
41.7 mm (1.6 in)
1957
50.8 mm (2.0 in)
1958
38.1 mm (1.5 in)
1959
21.8 mm (0.9 in)
1960
36.8 mm (1.4 in)
1961
37.1 mm (1.5 in)
1962
45.7 mm (1.8 in)
1963
36.6 mm (1.4 in)
1964
63.2 mm (2.5 in)
1965
28.2 mm (1.1 in)
1966
54.6 mm (2.1 in)
1967
50.8 mm (2.0 in)
1968
27.9 mm (1.1 in)
1969
36.6 mm (1.4 in)
1970
37.1 mm (1.5 in)
1971
53.3 mm (2.1 in)
1972
51.8 mm (2.0 in)
1973
52.8 mm (2.1 in)
1974
38.9 mm (1.5 in)
1975
63.0 mm (2.5 in)
1976
25.4 mm (1.0 in)
1977
48.5 mm (1.9 in)
1978
23.1 mm (0.9 in)
1979
52.3 mm (2.1 in)
1980
55.9 mm (2.2 in)
1981
72.9 mm (2.9 in)
1982
84.3 mm (3.3 in)
1983
40.6 mm (1.6 in)
1984
35.1 mm (1.4 in)
1985
25.4 mm (1.0 in)
1986
30.7 mm (1.2 in)
1987
36.3 mm (1.4 in)
1988
35.1 mm (1.4 in)
1989
24.1 mm (0.9 in)
1990
17.3 mm (0.7 in)
1991
25.9 mm (1.0 in)
1992
27.4 mm (1.1 in)
1993
38.1 mm (1.5 in)
1994
36.3 mm (1.4 in)
1995
33.3 mm (1.3 in)
1996
78.7 mm (3.1 in)
1997
25.9 mm (1.0 in)
1998
71.1 mm (2.8 in)
1999
42.2 mm (1.7 in)
2000
44.7 mm (1.8 in)
2001
28.7 mm (1.1 in)
2002
40.1 mm (1.6 in)
2003
54.4 mm (2.1 in)
2004
47.8 mm (1.9 in)
2005
38.9 mm (1.5 in)
2006
39.9 mm (1.6 in)
2007
59.2 mm (2.3 in)
2008
52.1 mm (2.1 in)
2009
30.0 mm (1.2 in)
2010
47.2 mm (1.9 in)
2011
35.6 mm (1.4 in)
2012
57.2 mm (2.3 in)
2013
53.3 mm (2.1 in)
2014
73.7 mm (2.9 in)
2015
62.2 mm (2.4 in)
2016
13.2 mm (0.5 in)
2017
88.9 mm (3.5 in)
2018
88.9 mm (3.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Chemult, 1937 to 2018. The record is 233.2 mm (9.2 in) in 1964, marked on the chart; the median year is 90.5 mm (3.6 in).
Wettest five days (Rx5day) at Chemult by year
Year
Wettest five days (Rx5day)
1937
79.0 mm (3.1 in)
1938
87.8 mm (3.5 in)
1939
95.0 mm (3.7 in)
1940
90.5 mm (3.6 in)
1941
86.6 mm (3.4 in)
1942
143.4 mm (5.6 in)
1943
120.6 mm (4.7 in)
1944
103.2 mm (4.1 in)
1945
133.6 mm (5.3 in)
1946
87.1 mm (3.4 in)
1947
57.4 mm (2.3 in)
1948
88.1 mm (3.5 in)
1949
97.2 mm (3.8 in)
1950
131.8 mm (5.2 in)
1951
64.2 mm (2.5 in)
1952
90.5 mm (3.6 in)
1953
136.3 mm (5.4 in)
1954
88.0 mm (3.5 in)
1955
139.2 mm (5.5 in)
1956
72.9 mm (2.9 in)
1957
99.1 mm (3.9 in)
1958
81.2 mm (3.2 in)
1959
46.0 mm (1.8 in)
1960
73.7 mm (2.9 in)
1961
100.7 mm (4.0 in)
1962
110.5 mm (4.4 in)
1963
98.3 mm (3.9 in)
1964
233.2 mm (9.2 in)
1965
62.7 mm (2.5 in)
1966
149.3 mm (5.9 in)
1967
107.9 mm (4.2 in)
1968
63.5 mm (2.5 in)
1969
99.3 mm (3.9 in)
1970
99.3 mm (3.9 in)
1971
143.7 mm (5.7 in)
1972
115.1 mm (4.5 in)
1973
130.6 mm (5.1 in)
1974
127.6 mm (5.0 in)
1975
100.3 mm (3.9 in)
1976
58.9 mm (2.3 in)
1977
154.5 mm (6.1 in)
1978
60.1 mm (2.4 in)
1979
102.0 mm (4.0 in)
1980
143.5 mm (5.6 in)
1981
94.5 mm (3.7 in)
1982
100.3 mm (3.9 in)
1983
34.0 mm (1.3 in)
1984
62.6 mm (2.5 in)
1985
37.1 mm (1.5 in)
1986
44.5 mm (1.8 in)
1987
51.1 mm (2.0 in)
1988
59.7 mm (2.4 in)
1989
58.4 mm (2.3 in)
1990
24.9 mm (1.0 in)
1991
25.9 mm (1.0 in)
1992
2.1 mm (0.08 in)
1993
47.5 mm (1.9 in)
1994
38.6 mm (1.5 in)
1995
106.2 mm (4.2 in)
1996
152.1 mm (6.0 in)
1997
144.3 mm (5.7 in)
1998
139.6 mm (5.5 in)
1999
84.1 mm (3.3 in)
2000
121.0 mm (4.8 in)
2001
71.6 mm (2.8 in)
2002
115.6 mm (4.6 in)
2003
90.2 mm (3.6 in)
2004
139.7 mm (5.5 in)
2005
130.0 mm (5.1 in)
2006
134.6 mm (5.3 in)
2007
79.8 mm (3.1 in)
2008
101.7 mm (4.0 in)
2009
68.1 mm (2.7 in)
2010
85.3 mm (3.4 in)
2011
74.9 mm (2.9 in)
2012
56.7 mm (2.2 in)
2013
56.6 mm (2.2 in)
2014
97.8 mm (3.9 in)
2015
72.9 mm (2.9 in)
2016
13.5 mm (0.5 in)
2017
88.9 mm (3.5 in)
2018
190.8 mm (7.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Chemult, 1937 to 2018. The record is 88 days in 2012, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Chemult by year
Year
Longest dry spell (CDD)
1937
36 days
1938
29 days
1939
31 days
1940
43 days
1941
29 days
1942
51 days
1943
37 days
1944
28 days
1945
64 days
1946
51 days
1947
39 days
1948
26 days
1949
79 days
1950
45 days
1951
32 days
1952
31 days
1953
34 days
1954
45 days
1955
65 days
1956
24 days
1957
73 days
1958
36 days
1959
30 days
1960
64 days
1961
54 days
1962
34 days
1963
29 days
1964
36 days
1965
40 days
1966
44 days
1967
57 days
1968
48 days
1969
55 days
1970
73 days
1971
23 days
1972
23 days
1973
34 days
1974
83 days
1975
32 days
1976
37 days
1977
38 days
1978
67 days
1979
47 days
1980
68 days
1981
74 days
1982
30 days
1983
34 days
1984
11 days
1985
52 days
1986
49 days
1987
37 days
1988
46 days
1989
24 days
1990
37 days
1991
55 days
1992
33 days
1993
46 days
1994
77 days
1995
43 days
1996
28 days
1997
31 days
1998
44 days
1999
36 days
2000
57 days
2001
23 days
2002
31 days
2003
67 days
2004
21 days
2005
42 days
2006
39 days
2007
30 days
2008
45 days
2009
62 days
2010
73 days
2011
23 days
2012
88 days
2013
35 days
2014
37 days
2015
27 days
2016
23 days
2017
27 days
2018
49 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
55 years with a frost
Across 55 years with a frost, the median last spring frost at Chemult falls on 28 June and the median first autumn frost on 3 July, which leaves a median of 6 days between them.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
Frost dates and growing season at Chemult
Measure
Median, all years
Earliest period
Recent period (1968 to 2015)
Recent against earliest
Fitted trend
Last spring frost
28 June
n/a
26 June
n/a
-0.8 days per decade
First autumn frost
3 July
n/a
6 July
n/a
+1.3 days per decade
Growing days
6 days
n/a
13 days
n/a
+2.1 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
57 years, 1937 to 2015
A day with at least 45.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 84.9 mm (3.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Chemult: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
45.3 mm (1.8 in)
5 years
58.5 mm (2.3 in)
10 years
66.1 mm (2.6 in)
25 years
74.5 mm (2.9 in)
50 years
80.0 mm (3.1 in)
100 years
84.9 mm (3.3 in)
Longer than the 57 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, 57 years of values from 1937 to 2015.
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: 81.8 mm (3.2 in) in 1945; 75.7 mm (3.0 in) in 1953; 73.7 mm (2.9 in) in 2014.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Chemult standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chemult 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.