Record envelope, standing records and threshold days for Canyon Dam (USC00041497), California, United States, with 108 years of record.
Key Facts for Canyon Dam
Canyon Dam (USC00041497) is a weather station in California, United States at 40.17 latitude and -121.09 longitude, 1,390 m (4,560 ft) above sea level.
The station reports from 1914 to 2021, 108 years of record.
1,464 records set at Canyon Dam still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Canyon Dam tied a monthly record high minimum temperature of 16.7 C (62.1 F) on 27 June 2021.
About the Station
Location: California, United States, 40.17 latitude, -121.09 longitude.
Elevation: 1,390 m (4,560 ft).
Period of record: 1914 to 2021, 108 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 Canyon Dam. 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 Canyon Dam, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-26.7 C (-16.1 F)
n/a
n/a
Feb
22.2 C (72.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Apr
30.6 C (87.1 F)
-14.4 C (6.1 F)
n/a
n/a
May
35.0 C (95.0 F)
-7.2 C (19.0 F)
n/a
n/a
Jun
38.9 C (102.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
40.0 C (104.0 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
40.0 C (104.0 F)
-3.9 C (25.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-5.6 C (21.9 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-10.6 C (12.9 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-15.6 C (3.9 F)
n/a
n/a
Dec
20.6 C (69.1 F)
-25.6 C (-14.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Canyon Dam still stand. 1917 holds the most, with 55.
Standing records at Canyon Dam by the year they were set
Year set
Standing records
1914
42
1915
14
1916
27
1917
55
1918
33
1919
54
1920
47
1921
20
1922
7
1923
16
1924
30
1925
24
1926
19
1927
32
1928
10
1929
32
1930
24
1931
17
1932
19
1933
7
1934
15
1935
22
1936
17
1937
23
1938
7
1939
8
1940
3
1941
4
1942
15
1943
11
1944
12
1945
15
1946
10
1947
13
1948
13
1949
24
1950
16
1951
11
1952
20
1953
6
1954
9
1955
19
1956
13
1957
10
1958
6
1959
6
1960
12
1961
15
1962
34
1963
11
1964
16
1965
5
1966
11
1967
17
1968
7
1969
6
1970
12
1971
8
1972
17
1973
6
1974
8
1975
10
1976
10
1977
7
1978
6
1979
4
1980
9
1981
11
1982
6
1983
5
1984
3
1985
15
1986
13
1987
21
1988
13
1989
15
1990
20
1991
3
1992
9
1993
7
1994
4
1995
13
1996
6
1997
9
1998
9
1999
9
2000
8
2001
4
2002
8
2003
17
2004
2
2005
6
2006
6
2007
5
2008
4
2009
6
2010
8
2011
4
2012
6
2014
19
2015
23
2016
14
2017
19
2018
5
2019
7
2020
6
2021
8
All-Time Record Progression
5 new records
5 all-time records were set at Canyon Dam between 22 January 1962 and 2 August 2000. Each dot is a new record.
When Canyon Dam set new all-time records
Date
Kind
Detail
1962-01-22
Record low minimum temperature
Record low minimum temperature -26.7 C (-16.1 F)
1967-01-21
Record daily precipitation
Record daily precipitation 148.6 mm (5.9 in)
1993-01-14
Record snow depth
Record snow depth 279.4 cm (110.0 in)
1993-01-16
Record snow depth
Record snow depth 292.1 cm (115.0 in)
2000-08-02
Record high minimum temperature
Record high minimum temperature 22.2 C (72.0 F)
Wettest Day of Each Month
Jan: 148.6 mm (5.9 in)
The wettest day on record for each calendar month at Canyon Dam. The most was 148.6 mm (5.9 in) on 21 January 1967.
Record daily precipitation for each month at Canyon Dam
Month
Record daily precipitation (mm)
Date
Jan
148.6 mm (5.9 in)
21 January 1967
Feb
136.1 mm (5.4 in)
27 February 2019
Mar
91.9 mm (3.6 in)
18 March 2020
Apr
66.5 mm (2.6 in)
11 April 1917
May
54.6 mm (2.1 in)
16 May 1996
Jun
49.8 mm (2.0 in)
12 June 1958
Jul
32.0 mm (1.3 in)
24 July 1946
Aug
38.9 mm (1.5 in)
11 August 1965
Sep
53.3 mm (2.1 in)
13 September 1918
Oct
132.1 mm (5.2 in)
13 October 1962
Nov
102.9 mm (4.1 in)
26 November 2017
Dec
113.0 mm (4.4 in)
9 December 1929
Period of Record Coverage
1914 to 2021
Complete yearUnder 90 percent of days
107 years of record at Canyon Dam, 1914 to 2021. 10 years have data for under 90 percent of days and are left out of rankings: 1922, 1962, 1973, 1987, 2005, 2012, 2014, 2019 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 91 complete years at Canyon Dam, 1914 to 2018. Blue stripes are years cooler than the station's own mean of 8.6 C (47.5 F); red stripes are warmer. The coolest year was 1990, at 6.5 C (43.8 F), and the warmest was 2015, at 10.8 C (51.5 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Canyon Dam as warming stripes, 1914 to 2018
Year
Annual mean temperature
Difference from the station mean
1914
9.7 C
+1.07 C
1916
8.6 C
+0.01 C
1917
9.5 C
+0.94 C
1918
10.5 C
+1.90 C
1919
10.7 C
+2.07 C
1921
10.0 C
+1.43 C
1923
9.0 C
+0.36 C
1924
9.4 C
+0.79 C
1925
9.4 C
+0.83 C
1926
9.3 C
+0.74 C
1927
7.0 C
-1.57 C
1928
7.7 C
-0.94 C
1929
7.0 C
-1.62 C
1930
6.7 C
-1.86 C
1931
8.8 C
+0.20 C
1932
8.0 C
-0.62 C
1933
8.1 C
-0.53 C
1934
10.2 C
+1.55 C
1935
7.4 C
-1.25 C
1936
9.1 C
+0.48 C
1937
7.5 C
-1.13 C
1938
8.2 C
-0.44 C
1939
9.3 C
+0.74 C
1940
9.3 C
+0.69 C
1941
8.4 C
-0.21 C
1943
7.8 C
-0.79 C
1944
7.8 C
-0.78 C
1945
8.4 C
-0.17 C
1946
7.9 C
-0.75 C
1947
8.6 C
+0.02 C
1948
7.3 C
-1.31 C
1949
7.5 C
-1.15 C
1950
8.7 C
+0.11 C
1951
8.7 C
+0.10 C
1952
7.7 C
-0.92 C
1953
8.2 C
-0.41 C
1954
8.4 C
-0.19 C
1955
7.3 C
-1.26 C
1956
7.8 C
-0.85 C
1957
7.9 C
-0.72 C
1958
9.0 C
+0.43 C
1959
8.7 C
+0.05 C
1960
8.4 C
-0.18 C
1961
7.4 C
-1.16 C
1963
8.4 C
-0.24 C
1964
7.6 C
-0.98 C
1965
7.6 C
-1.05 C
1966
8.3 C
-0.30 C
1967
8.0 C
-0.63 C
1968
8.1 C
-0.47 C
1969
7.8 C
-0.78 C
1970
8.4 C
-0.17 C
1971
7.4 C
-1.24 C
1972
8.0 C
-0.63 C
1974
8.9 C
+0.26 C
1975
7.9 C
-0.66 C
1976
8.8 C
+0.17 C
1977
9.0 C
+0.41 C
1979
8.7 C
+0.12 C
1980
8.7 C
+0.08 C
1981
9.6 C
+1.03 C
1982
7.6 C
-0.96 C
1983
8.3 C
-0.34 C
1984
8.6 C
0.00 C
1986
9.4 C
+0.77 C
1988
9.6 C
+0.96 C
1989
7.2 C
-1.45 C
1990
6.5 C
-2.06 C
1991
9.0 C
+0.36 C
1992
9.7 C
+1.09 C
1993
7.6 C
-1.02 C
1994
8.6 C
+0.04 C
1995
9.0 C
+0.36 C
1996
9.4 C
+0.83 C
1997
9.2 C
+0.60 C
1999
9.0 C
+0.40 C
2000
9.2 C
+0.56 C
2001
9.7 C
+1.07 C
2002
9.5 C
+0.87 C
2003
9.7 C
+1.10 C
2004
9.3 C
+0.70 C
2006
8.9 C
+0.31 C
2007
9.1 C
+0.51 C
2008
9.0 C
+0.40 C
2009
8.9 C
+0.32 C
2010
8.5 C
-0.07 C
2011
8.2 C
-0.43 C
2015
10.8 C
+2.24 C
2016
10.1 C
+1.54 C
2017
10.0 C
+1.36 C
2018
10.1 C
+1.49 C
The fitted trend in annual mean temperature here over 1914 to 2018 is 0.06 C (0.00 to 0.12) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.11 F (-0.01 to 0.22) per decade. The slope is a straight line fitted to 91 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Canyon Dam
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.06 C (0.00 to 0.12) per decade
0.11 F (-0.01 to 0.22) per decade
1914 to 2018
91
Not clearly different from zero
Mean daily maximum
-0.07 C (-0.14 to 0.01) per decade
-0.12 F (-0.25 to 0.01) per decade
1914 to 2018
91
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.2 to 0.5) per decade
1914 to 2018
91
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
1914 to 2021
Yearly extremes at Canyon Dam: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1914
35.6 C (96.1 F)
107
Coldest night (TNn)
-26.7 C (-16.1 F)
1962
-15.6 C (3.9 F)
107
Wettest day (Rx1day)
148.6 mm (5.9 in)
1967
69.8 mm (2.7 in)
108
Wettest five days (Rx5day)
365.9 mm (14.4 in)
1962
152.6 mm (6.0 in)
108
Longest dry spell (CDD)
136 days
2002
64 days
108
Hottest day (TXx)
The hottest day of the year at Canyon Dam, 1914 to 2021. The record is 40.0 C (104.0 F) in 1914, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Canyon Dam by year
Year
Hottest day (TXx)
1914
40.0 C (104.0 F)
1915
40.0 C (104.0 F)
1916
38.3 C (100.9 F)
1917
38.9 C (102.0 F)
1918
38.9 C (102.0 F)
1919
38.9 C (102.0 F)
1920
39.4 C (102.9 F)
1921
35.6 C (96.1 F)
1922
36.7 C (98.1 F)
1923
35.6 C (96.1 F)
1924
36.7 C (98.1 F)
1925
36.7 C (98.1 F)
1926
35.6 C (96.1 F)
1927
38.9 C (102.0 F)
1928
37.8 C (100.0 F)
1929
36.7 C (98.1 F)
1930
33.3 C (91.9 F)
1931
38.9 C (102.0 F)
1932
36.7 C (98.1 F)
1933
38.3 C (100.9 F)
1934
36.1 C (97.0 F)
1935
34.4 C (93.9 F)
1936
36.7 C (98.1 F)
1937
34.4 C (93.9 F)
1938
36.1 C (97.0 F)
1939
37.2 C (99.0 F)
1940
37.2 C (99.0 F)
1941
34.4 C (93.9 F)
1942
36.1 C (97.0 F)
1943
33.3 C (91.9 F)
1944
35.6 C (96.1 F)
1945
37.8 C (100.0 F)
1946
38.9 C (102.0 F)
1947
34.4 C (93.9 F)
1948
34.4 C (93.9 F)
1949
34.4 C (93.9 F)
1950
36.7 C (98.1 F)
1951
35.6 C (96.1 F)
1952
35.6 C (96.1 F)
1953
34.4 C (93.9 F)
1954
34.4 C (93.9 F)
1955
36.7 C (98.1 F)
1956
34.4 C (93.9 F)
1957
34.4 C (93.9 F)
1958
32.8 C (91.0 F)
1959
36.1 C (97.0 F)
1960
38.9 C (102.0 F)
1961
36.1 C (97.0 F)
1962
34.4 C (93.9 F)
1963
32.8 C (91.0 F)
1964
35.6 C (96.1 F)
1965
33.3 C (91.9 F)
1966
36.1 C (97.0 F)
1967
35.6 C (96.1 F)
1968
35.0 C (95.0 F)
1969
35.0 C (95.0 F)
1970
35.6 C (96.1 F)
1971
36.1 C (97.0 F)
1972
38.3 C (100.9 F)
1973
34.4 C (93.9 F)
1974
33.9 C (93.0 F)
1975
36.1 C (97.0 F)
1976
35.0 C (95.0 F)
1977
36.7 C (98.1 F)
1978
35.0 C (95.0 F)
1979
35.0 C (95.0 F)
1980
35.0 C (95.0 F)
1981
38.9 C (102.0 F)
1982
32.8 C (91.0 F)
1983
33.3 C (91.9 F)
1984
35.0 C (95.0 F)
1985
33.3 C (91.9 F)
1986
33.9 C (93.0 F)
1987
36.1 C (97.0 F)
1988
38.3 C (100.9 F)
1989
30.6 C (87.1 F)
1990
32.8 C (91.0 F)
1991
34.4 C (93.9 F)
1992
35.6 C (96.1 F)
1993
34.4 C (93.9 F)
1994
37.2 C (99.0 F)
1995
33.3 C (91.9 F)
1996
34.4 C (93.9 F)
1997
35.0 C (95.0 F)
1998
35.6 C (96.1 F)
1999
37.2 C (99.0 F)
2000
34.4 C (93.9 F)
2001
35.0 C (95.0 F)
2002
38.9 C (102.0 F)
2003
36.7 C (98.1 F)
2004
34.4 C (93.9 F)
2005
34.4 C (93.9 F)
2006
35.6 C (96.1 F)
2007
36.7 C (98.1 F)
2008
36.7 C (98.1 F)
2009
35.6 C (96.1 F)
2010
34.4 C (93.9 F)
2011
35.0 C (95.0 F)
2012
33.3 C (91.9 F)
2013
n/a
2014
36.7 C (98.1 F)
2015
36.7 C (98.1 F)
2016
37.8 C (100.0 F)
2017
37.2 C (99.0 F)
2018
36.7 C (98.1 F)
2019
33.9 C (93.0 F)
2020
36.1 C (97.0 F)
2021
37.2 C (99.0 F)
Coldest night (TNn)
The coldest night of the year at Canyon Dam, 1914 to 2021. The record is -26.7 C (-16.1 F) in 1962, marked on the chart; the median year is -15.6 C (3.9 F).
Coldest night (TNn) at Canyon Dam by year
Year
Coldest night (TNn)
1914
-16.7 C (1.9 F)
1915
-16.7 C (1.9 F)
1916
-17.8 C (0.0 F)
1917
-21.1 C (-6.0 F)
1918
-13.3 C (8.1 F)
1919
-20.0 C (-4.0 F)
1920
-10.0 C (14.0 F)
1921
-15.6 C (3.9 F)
1922
-16.7 C (1.9 F)
1923
-19.4 C (-2.9 F)
1924
-20.0 C (-4.0 F)
1925
-15.6 C (3.9 F)
1926
-14.4 C (6.1 F)
1927
-17.8 C (0.0 F)
1928
-16.7 C (1.9 F)
1929
-20.0 C (-4.0 F)
1930
-20.0 C (-4.0 F)
1931
-18.9 C (-2.0 F)
1932
-23.3 C (-9.9 F)
1933
-22.2 C (-8.0 F)
1934
-9.4 C (15.1 F)
1935
-20.0 C (-4.0 F)
1936
-13.3 C (8.1 F)
1937
-25.6 C (-14.1 F)
1938
-16.1 C (3.0 F)
1939
-20.0 C (-4.0 F)
1940
-15.6 C (3.9 F)
1941
-11.7 C (10.9 F)
1942
-19.4 C (-2.9 F)
1943
-16.1 C (3.0 F)
1944
-13.9 C (7.0 F)
1945
-16.1 C (3.0 F)
1946
-18.9 C (-2.0 F)
1947
-15.6 C (3.9 F)
1948
-18.9 C (-2.0 F)
1949
-25.6 C (-14.1 F)
1950
-23.3 C (-9.9 F)
1951
-18.9 C (-2.0 F)
1952
-22.8 C (-9.0 F)
1953
-12.2 C (10.0 F)
1954
-13.9 C (7.0 F)
1955
-22.2 C (-8.0 F)
1956
-17.8 C (0.0 F)
1957
-20.6 C (-5.1 F)
1958
-11.7 C (10.9 F)
1959
-13.3 C (8.1 F)
1960
-19.4 C (-2.9 F)
1961
-18.3 C (-0.9 F)
1962
-26.7 C (-16.1 F)
1963
-17.8 C (0.0 F)
1964
-12.2 C (10.0 F)
1965
-15.6 C (3.9 F)
1966
-15.6 C (3.9 F)
1967
-13.3 C (8.1 F)
1968
-17.2 C (1.0 F)
1969
-17.8 C (0.0 F)
1970
-16.7 C (1.9 F)
1971
-18.9 C (-2.0 F)
1972
-25.6 C (-14.1 F)
1973
-18.9 C (-2.0 F)
1974
-16.1 C (3.0 F)
1975
-14.4 C (6.1 F)
1976
-13.3 C (8.1 F)
1977
-14.4 C (6.1 F)
1978
-16.1 C (3.0 F)
1979
-17.2 C (1.0 F)
1980
-12.8 C (9.0 F)
1981
-10.0 C (14.0 F)
1982
-16.7 C (1.9 F)
1983
-12.2 C (10.0 F)
1984
-14.4 C (6.1 F)
1985
-14.4 C (6.1 F)
1986
-9.4 C (15.1 F)
1987
-14.4 C (6.1 F)
1988
-16.7 C (1.9 F)
1989
-23.3 C (-9.9 F)
1990
-23.9 C (-11.0 F)
1991
-11.7 C (10.9 F)
1992
-13.3 C (8.1 F)
1993
-20.6 C (-5.1 F)
1994
-12.8 C (9.0 F)
1995
-11.1 C (12.0 F)
1996
-12.8 C (9.0 F)
1997
-13.9 C (7.0 F)
1998
-19.4 C (-2.9 F)
1999
-11.1 C (12.0 F)
2000
-8.9 C (16.0 F)
2001
-13.9 C (7.0 F)
2002
-15.0 C (5.0 F)
2003
-10.0 C (14.0 F)
2004
-15.6 C (3.9 F)
2005
-10.6 C (12.9 F)
2006
-11.7 C (10.9 F)
2007
-13.9 C (7.0 F)
2008
-14.4 C (6.1 F)
2009
-21.7 C (-7.1 F)
2010
-15.6 C (3.9 F)
2011
-15.0 C (5.0 F)
2012
-13.3 C (8.1 F)
2013
n/a
2014
-11.7 C (10.9 F)
2015
-12.2 C (10.0 F)
2016
-13.9 C (7.0 F)
2017
-10.0 C (14.0 F)
2018
-12.2 C (10.0 F)
2019
-13.9 C (7.0 F)
2020
-10.6 C (12.9 F)
2021
-11.1 C (12.0 F)
Wettest day (Rx1day)
The wettest day of the year at Canyon Dam, 1914 to 2021. The record is 148.6 mm (5.9 in) in 1967, marked on the chart; the median year is 69.8 mm (2.7 in).
Wettest day (Rx1day) at Canyon Dam by year
Year
Wettest day (Rx1day)
1914
88.9 mm (3.5 in)
1915
85.1 mm (3.4 in)
1916
96.5 mm (3.8 in)
1917
102.4 mm (4.0 in)
1918
53.3 mm (2.1 in)
1919
87.9 mm (3.5 in)
1920
67.6 mm (2.7 in)
1921
59.4 mm (2.3 in)
1922
98.3 mm (3.9 in)
1923
32.5 mm (1.3 in)
1924
53.3 mm (2.1 in)
1925
54.1 mm (2.1 in)
1926
64.8 mm (2.6 in)
1927
53.3 mm (2.1 in)
1928
61.0 mm (2.4 in)
1929
113.0 mm (4.4 in)
1930
48.3 mm (1.9 in)
1931
95.3 mm (3.8 in)
1932
53.8 mm (2.1 in)
1933
50.3 mm (2.0 in)
1934
57.2 mm (2.3 in)
1935
57.9 mm (2.3 in)
1936
61.0 mm (2.4 in)
1937
99.1 mm (3.9 in)
1938
72.4 mm (2.9 in)
1939
63.2 mm (2.5 in)
1940
108.5 mm (4.3 in)
1941
57.7 mm (2.3 in)
1942
73.9 mm (2.9 in)
1943
135.6 mm (5.3 in)
1944
52.6 mm (2.1 in)
1945
64.5 mm (2.5 in)
1946
68.6 mm (2.7 in)
1947
72.6 mm (2.9 in)
1948
71.1 mm (2.8 in)
1949
66.0 mm (2.6 in)
1950
102.4 mm (4.0 in)
1951
74.9 mm (2.9 in)
1952
70.4 mm (2.8 in)
1953
72.4 mm (2.9 in)
1954
85.1 mm (3.4 in)
1955
109.2 mm (4.3 in)
1956
92.5 mm (3.6 in)
1957
81.3 mm (3.2 in)
1958
57.2 mm (2.3 in)
1959
56.9 mm (2.2 in)
1960
70.4 mm (2.8 in)
1961
59.7 mm (2.4 in)
1962
132.1 mm (5.2 in)
1963
76.2 mm (3.0 in)
1964
96.0 mm (3.8 in)
1965
86.4 mm (3.4 in)
1966
68.8 mm (2.7 in)
1967
148.6 mm (5.9 in)
1968
64.5 mm (2.5 in)
1969
98.6 mm (3.9 in)
1970
103.6 mm (4.1 in)
1971
88.1 mm (3.5 in)
1972
38.1 mm (1.5 in)
1973
105.9 mm (4.2 in)
1974
85.9 mm (3.4 in)
1975
43.4 mm (1.7 in)
1976
43.7 mm (1.7 in)
1977
47.8 mm (1.9 in)
1978
81.0 mm (3.2 in)
1979
70.6 mm (2.8 in)
1980
86.1 mm (3.4 in)
1981
69.6 mm (2.7 in)
1982
96.3 mm (3.8 in)
1983
83.8 mm (3.3 in)
1984
45.0 mm (1.8 in)
1985
81.8 mm (3.2 in)
1986
101.6 mm (4.0 in)
1987
47.5 mm (1.9 in)
1988
86.9 mm (3.4 in)
1989
51.8 mm (2.0 in)
1990
47.5 mm (1.9 in)
1991
63.5 mm (2.5 in)
1992
43.7 mm (1.7 in)
1993
68.6 mm (2.7 in)
1994
60.2 mm (2.4 in)
1995
104.1 mm (4.1 in)
1996
84.1 mm (3.3 in)
1997
75.2 mm (3.0 in)
1998
69.9 mm (2.8 in)
1999
66.5 mm (2.6 in)
2000
55.1 mm (2.2 in)
2001
41.1 mm (1.6 in)
2002
88.6 mm (3.5 in)
2003
58.4 mm (2.3 in)
2004
57.7 mm (2.3 in)
2005
87.9 mm (3.5 in)
2006
72.9 mm (2.9 in)
2007
38.1 mm (1.5 in)
2008
53.3 mm (2.1 in)
2009
56.4 mm (2.2 in)
2010
64.0 mm (2.5 in)
2011
58.2 mm (2.3 in)
2012
70.9 mm (2.8 in)
2013
20.6 mm (0.8 in)
2014
55.6 mm (2.2 in)
2015
56.1 mm (2.2 in)
2016
58.9 mm (2.3 in)
2017
102.9 mm (4.1 in)
2018
71.6 mm (2.8 in)
2019
136.1 mm (5.4 in)
2020
91.9 mm (3.6 in)
2021
43.4 mm (1.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Canyon Dam, 1914 to 2021. The record is 365.9 mm (14.4 in) in 1962, marked on the chart; the median year is 152.6 mm (6.0 in).
Wettest five days (Rx5day) at Canyon Dam by year
Year
Wettest five days (Rx5day)
1914
198.7 mm (7.8 in)
1915
174.5 mm (6.9 in)
1916
152.3 mm (6.0 in)
1917
242.6 mm (9.6 in)
1918
85.0 mm (3.3 in)
1919
177.3 mm (7.0 in)
1920
127.5 mm (5.0 in)
1921
157.2 mm (6.2 in)
1922
183.0 mm (7.2 in)
1923
65.0 mm (2.6 in)
1924
91.7 mm (3.6 in)
1925
159.9 mm (6.3 in)
1926
220.2 mm (8.7 in)
1927
134.2 mm (5.3 in)
1928
177.8 mm (7.0 in)
1929
297.7 mm (11.7 in)
1930
83.6 mm (3.3 in)
1931
221.6 mm (8.7 in)
1932
97.2 mm (3.8 in)
1933
122.2 mm (4.8 in)
1934
129.8 mm (5.1 in)
1935
135.7 mm (5.3 in)
1936
155.7 mm (6.1 in)
1937
202.9 mm (8.0 in)
1938
213.9 mm (8.4 in)
1939
90.1 mm (3.5 in)
1940
281.2 mm (11.1 in)
1941
169.8 mm (6.7 in)
1942
182.9 mm (7.2 in)
1943
187.2 mm (7.4 in)
1944
130.3 mm (5.1 in)
1945
164.3 mm (6.5 in)
1946
143.1 mm (5.6 in)
1947
94.5 mm (3.7 in)
1948
132.3 mm (5.2 in)
1949
93.4 mm (3.7 in)
1950
182.6 mm (7.2 in)
1951
171.7 mm (6.8 in)
1952
210.9 mm (8.3 in)
1953
171.2 mm (6.7 in)
1954
145.3 mm (5.7 in)
1955
348.5 mm (13.7 in)
1956
269.4 mm (10.6 in)
1957
208.0 mm (8.2 in)
1958
146.0 mm (5.7 in)
1959
133.1 mm (5.2 in)
1960
138.1 mm (5.4 in)
1961
156.2 mm (6.1 in)
1962
365.9 mm (14.4 in)
1963
131.0 mm (5.2 in)
1964
273.5 mm (10.8 in)
1965
228.1 mm (9.0 in)
1966
103.7 mm (4.1 in)
1967
250.4 mm (9.9 in)
1968
89.0 mm (3.5 in)
1969
204.5 mm (8.1 in)
1970
201.2 mm (7.9 in)
1971
157.5 mm (6.2 in)
1972
104.4 mm (4.1 in)
1973
198.6 mm (7.8 in)
1974
174.6 mm (6.9 in)
1975
143.0 mm (5.6 in)
1976
106.2 mm (4.2 in)
1977
117.1 mm (4.6 in)
1978
199.7 mm (7.9 in)
1979
136.4 mm (5.4 in)
1980
192.5 mm (7.6 in)
1981
184.2 mm (7.3 in)
1982
152.9 mm (6.0 in)
1983
203.0 mm (8.0 in)
1984
100.1 mm (3.9 in)
1985
144.5 mm (5.7 in)
1986
315.5 mm (12.4 in)
1987
103.7 mm (4.1 in)
1988
125.5 mm (4.9 in)
1989
162.9 mm (6.4 in)
1990
65.3 mm (2.6 in)
1991
165.3 mm (6.5 in)
1992
99.1 mm (3.9 in)
1993
110.0 mm (4.3 in)
1994
98.1 mm (3.9 in)
1995
324.6 mm (12.8 in)
1996
179.6 mm (7.1 in)
1997
186.4 mm (7.3 in)
1998
144.0 mm (5.7 in)
1999
142.4 mm (5.6 in)
2000
117.3 mm (4.6 in)
2001
79.9 mm (3.1 in)
2002
236.9 mm (9.3 in)
2003
89.6 mm (3.5 in)
2004
143.8 mm (5.7 in)
2005
186.1 mm (7.3 in)
2006
188.7 mm (7.4 in)
2007
121.2 mm (4.8 in)
2008
117.1 mm (4.6 in)
2009
125.5 mm (4.9 in)
2010
126.4 mm (5.0 in)
2011
145.8 mm (5.7 in)
2012
185.7 mm (7.3 in)
2013
31.8 mm (1.3 in)
2014
109.8 mm (4.3 in)
2015
123.6 mm (4.9 in)
2016
165.8 mm (6.5 in)
2017
233.6 mm (9.2 in)
2018
92.0 mm (3.6 in)
2019
143.0 mm (5.6 in)
2020
182.6 mm (7.2 in)
2021
65.8 mm (2.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Canyon Dam, 1914 to 2021. The record is 136 days in 2002, marked on the chart; the median year is 64 days.
Longest dry spell (CDD) at Canyon Dam by year
Year
Longest dry spell (CDD)
1914
61 days
1915
39 days
1916
82 days
1917
57 days
1918
25 days
1919
62 days
1920
32 days
1921
23 days
1922
48 days
1923
38 days
1924
25 days
1925
25 days
1926
60 days
1927
51 days
1928
112 days
1929
111 days
1930
103 days
1931
45 days
1932
97 days
1933
47 days
1934
60 days
1935
88 days
1936
63 days
1937
82 days
1938
88 days
1939
44 days
1940
27 days
1941
36 days
1942
132 days
1943
78 days
1944
57 days
1945
106 days
1946
58 days
1947
64 days
1948
99 days
1949
87 days
1950
41 days
1951
58 days
1952
40 days
1953
41 days
1954
77 days
1955
76 days
1956
55 days
1957
110 days
1958
39 days
1959
84 days
1960
100 days
1961
64 days
1962
54 days
1963
41 days
1964
82 days
1965
66 days
1966
102 days
1967
67 days
1968
54 days
1969
93 days
1970
112 days
1971
39 days
1972
67 days
1973
51 days
1974
83 days
1975
45 days
1976
43 days
1977
64 days
1978
57 days
1979
73 days
1980
42 days
1981
120 days
1982
64 days
1983
71 days
1984
40 days
1985
64 days
1986
117 days
1987
91 days
1988
61 days
1989
52 days
1990
78 days
1991
67 days
1992
51 days
1993
69 days
1994
110 days
1995
125 days
1996
45 days
1997
49 days
1998
61 days
1999
55 days
2000
84 days
2001
77 days
2002
136 days
2003
83 days
2004
100 days
2005
71 days
2006
112 days
2007
65 days
2008
121 days
2009
66 days
2010
35 days
2011
33 days
2012
36 days
2013
23 days
2014
73 days
2015
35 days
2016
85 days
2017
36 days
2018
106 days
2019
43 days
2020
40 days
2021
31 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
91 years with a frost
Across 91 years with a frost, the median last spring frost at Canyon Dam falls on 28 May and the median first autumn frost on 24 September, which leaves a median of 120 days between them.
In 1982 to 2018 the median growing season was 132 days. That is 11 days more than in 1914 to 1947.
Fitted over all years, the growing season changes by +1.2 days per decade at this station.
Frost dates and growing season at Canyon Dam
Measure
Median, all years
Earliest period (1914 to 1947)
Recent period (1982 to 2018)
Recent against earliest
Fitted trend
Last spring frost
28 May
26 May
23 May
3 days earlier
0.0 days per decade
First autumn frost
24 September
23 September
2 October
9 days later
+1.2 days per decade
Growing days
120 days
121 days
132 days
11 days more
+1.2 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
91 years, 1916 to 2018
A day with at least 68.6 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 138.2 mm (5.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Canyon Dam: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
68.6 mm (2.7 in)
5 years
88.2 mm (3.5 in)
10 years
100.8 mm (4.0 in)
25 years
116.3 mm (4.6 in)
50 years
127.4 mm (5.0 in)
100 years
138.2 mm (5.4 in)
Longer than the 91 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, 91 years of values from 1916 to 2018.
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: 148.6 mm (5.9 in) in 1967; 135.6 mm (5.3 in) in 1943; 113.0 mm (4.4 in) in 1929.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Canyon Dam, at 1994. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1994 ran 0.4 C (0.6 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Canyon Dam, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1994
+0.4
+0.6
possible
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Canyon Dam standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Canyon Dam 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.