Record envelope, standing records and threshold days for Parker Rsvr (USC00046699), California, United States, with 93 years of record.
Key Facts for Parker Rsvr
Parker Rsvr (USC00046699) is a weather station in California, United States at 34.29 latitude and -114.17 longitude, 225 m (738 ft) above sea level.
The station reports from 1934 to 2026, 93 years of record.
1,464 records set at Parker Rsvr still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Parker Rsvr set a daily record high minimum temperature of 33.3 C (91.9 F) on 31 July 2026.
About the Station
Location: California, United States, 34.29 latitude, -114.17 longitude.
Elevation: 225 m (738 ft).
Period of record: 1934 to 2026, 93 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
17 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 Parker Rsvr. The lines show the 2026 daily maximum and minimum. 17 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Parker Rsvr, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
30.0 C (86.0 F)
-6.1 C (21.0 F)
25.0 C (77.0 F)
5.6 C (42.1 F)
Feb
33.3 C (91.9 F)
-2.8 C (27.0 F)
32.8 C (91.0 F)
5.6 C (42.1 F)
Mar
41.1 C (106.0 F)
1.1 C (34.0 F)
41.1 C (106.0 F)
13.9 C (57.0 F)
Apr
41.7 C (107.1 F)
1.7 C (35.1 F)
35.6 C (96.1 F)
12.8 C (55.0 F)
May
47.2 C (117.0 F)
5.0 C (41.0 F)
43.3 C (109.9 F)
15.0 C (59.0 F)
Jun
50.0 C (122.0 F)
13.3 C (55.9 F)
45.6 C (114.1 F)
23.3 C (73.9 F)
Jul
51.1 C (124.0 F)
17.8 C (64.0 F)
47.2 C (117.0 F)
25.6 C (78.1 F)
Aug
49.4 C (120.9 F)
16.7 C (62.1 F)
n/a
n/a
Sep
48.9 C (120.0 F)
11.7 C (53.1 F)
28.3 C (82.9 F)
17.8 C (64.0 F)
Oct
45.6 C (114.1 F)
4.4 C (39.9 F)
n/a
n/a
Nov
35.0 C (95.0 F)
-2.2 C (28.0 F)
n/a
n/a
Dec
28.3 C (82.9 F)
-3.9 C (25.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Parker Rsvr still stand. 1949 holds the most, with 43.
Standing records at Parker Rsvr by the year they were set
Year set
Standing records
1934
30
1935
20
1936
24
1937
41
1938
20
1939
13
1940
12
1941
17
1942
9
1948
4
1949
43
1950
22
1951
16
1952
18
1953
11
1954
3
1955
15
1956
15
1957
22
1958
24
1959
16
1960
8
1961
11
1962
25
1963
21
1964
26
1965
20
1966
19
1967
21
1968
11
1969
15
1970
14
1971
41
1972
29
1973
9
1974
4
1975
17
1976
18
1977
12
1978
11
1979
23
1980
25
1981
21
1982
12
1983
8
1984
11
1985
23
1986
22
1987
15
1988
5
1989
25
1990
11
1991
7
1992
6
1993
3
1994
8
1995
10
1996
15
1997
6
1998
10
1999
15
2000
17
2001
19
2002
5
2003
19
2004
7
2005
5
2006
5
2007
12
2008
15
2009
10
2010
8
2011
13
2012
26
2013
39
2014
18
2015
18
2016
19
2017
20
2018
16
2019
6
2020
25
2021
18
2022
10
2023
12
2024
28
2025
28
2026
38
All-Time Record Progression
2 new records
2 all-time records were set at Parker Rsvr between 1 January 2015 and 26 July 2026. Each dot is a new record.
When Parker Rsvr set new all-time records
Date
Kind
Detail
2015-01-01
Record daily snowfall
Record daily snowfall 0.3 cm (0.1 in)
2026-07-26
Record high minimum temperature
Record high minimum temperature 35.6 C (96.1 F)
Wettest Day of Each Month
Aug: 77.5 mm (3.1 in)
The wettest day on record for each calendar month at Parker Rsvr. The most was 77.5 mm (3.1 in) on 29 August 1951.
Record daily precipitation for each month at Parker Rsvr
Month
Record daily precipitation (mm)
Date
Jan
59.7 mm (2.4 in)
26 January 1995
Feb
44.5 mm (1.8 in)
12 February 2005
Mar
40.6 mm (1.6 in)
16 March 1937
Apr
25.7 mm (1.0 in)
15 April 1988
May
17.5 mm (0.7 in)
7 May 2025
Jun
22.6 mm (0.9 in)
28 June 1937
Jul
45.7 mm (1.8 in)
24 July 1980
Aug
77.5 mm (3.1 in)
29 August 1951
Sep
51.3 mm (2.0 in)
26 September 1997
Oct
59.4 mm (2.3 in)
21 October 1978
Nov
45.0 mm (1.8 in)
8 November 2004
Dec
37.6 mm (1.5 in)
10 December 1965
Period of Record Coverage
1934 to 2026
Complete yearUnder 90 percent of days
89 years of record at Parker Rsvr, 1934 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1943, 1948, 1999, 2002, 2007, 2008, 2016, 2017 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 73 complete years at Parker Rsvr, 1935 to 2025. Blue stripes are years cooler than the station's own mean of 23.5 C (74.2 F); red stripes are warmer. The coolest year was 2013, at 21.9 C (71.4 F), and the warmest was 2025, at 25.3 C (77.5 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Parker Rsvr as warming stripes, 1935 to 2025
Year
Annual mean temperature
Difference from the station mean
1935
22.9 C
-0.54 C
1936
24.0 C
+0.51 C
1937
23.7 C
+0.21 C
1938
23.3 C
-0.16 C
1940
24.3 C
+0.88 C
1941
22.5 C
-0.97 C
1942
23.3 C
-0.16 C
1949
22.7 C
-0.78 C
1950
23.9 C
+0.40 C
1951
22.8 C
-0.68 C
1952
22.8 C
-0.66 C
1953
23.2 C
-0.30 C
1954
23.8 C
+0.33 C
1955
22.6 C
-0.82 C
1956
23.2 C
-0.23 C
1957
23.3 C
-0.14 C
1958
24.2 C
+0.71 C
1959
23.9 C
+0.49 C
1960
23.6 C
+0.12 C
1961
23.3 C
-0.13 C
1962
23.8 C
+0.33 C
1963
23.3 C
-0.18 C
1964
22.6 C
-0.84 C
1965
22.9 C
-0.53 C
1966
23.6 C
+0.16 C
1967
23.4 C
-0.07 C
1968
23.5 C
+0.02 C
1969
23.7 C
+0.28 C
1970
23.3 C
-0.16 C
1971
22.6 C
-0.89 C
1972
23.4 C
-0.06 C
1973
23.0 C
-0.50 C
1974
23.5 C
+0.09 C
1975
22.6 C
-0.83 C
1976
23.1 C
-0.31 C
1977
23.7 C
+0.25 C
1978
23.1 C
-0.35 C
1979
22.9 C
-0.53 C
1980
23.6 C
+0.11 C
1981
24.4 C
+0.96 C
1982
22.4 C
-1.07 C
1983
23.0 C
-0.41 C
1984
23.0 C
-0.42 C
1985
23.0 C
-0.48 C
1986
23.3 C
-0.14 C
1987
23.3 C
-0.15 C
1988
23.7 C
+0.21 C
1989
24.2 C
+0.74 C
1990
23.2 C
-0.27 C
1991
22.9 C
-0.56 C
1992
23.4 C
-0.02 C
1993
23.1 C
-0.39 C
1994
23.5 C
+0.07 C
1995
23.9 C
+0.49 C
1996
24.5 C
+1.02 C
1997
23.9 C
+0.47 C
2001
24.4 C
+0.97 C
2003
24.4 C
+0.90 C
2004
23.9 C
+0.47 C
2005
23.7 C
+0.26 C
2006
24.1 C
+0.61 C
2009
23.1 C
-0.32 C
2010
23.5 C
+0.06 C
2011
23.4 C
-0.07 C
2012
23.8 C
+0.34 C
2013
21.9 C
-1.58 C
2014
23.2 C
-0.21 C
2015
23.8 C
+0.31 C
2020
24.4 C
+0.92 C
2022
24.1 C
+0.63 C
2023
23.3 C
-0.15 C
2024
24.5 C
+1.08 C
2025
25.3 C
+1.80 C
The annual mean temperature here has risen by 0.08 C (0.02 to 0.13) per decade over 1935 to 2025. In Fahrenheit: 0.13 F (0.04 to 0.23) per decade. The slope is a straight line fitted to 73 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Parker Rsvr
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.08 C (0.02 to 0.13) per decade
0.14 F (0.04 to 0.23) per decade
1935 to 2025
73
Rise
Mean daily maximum
0.1 C (0.1 to 0.2) per decade
0.2 F (0.1 to 0.3) per decade
1935 to 2025
73
Rise
Mean daily minimum
0.03 C (-0.04 to 0.10) per decade
0.1 F (-0.1 to 0.2) per decade
1935 to 2025
73
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
1934 to 2026
Yearly extremes at Parker Rsvr: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
51.1 C (124.0 F)
1950
47.2 C (117.0 F)
89
Coldest night (TNn)
-6.1 C (21.0 F)
1937
0.6 C (33.1 F)
89
Wettest day (Rx1day)
77.5 mm (3.1 in)
1951
24.6 mm (1.0 in)
89
Wettest five days (Rx5day)
120.4 mm (4.7 in)
1939
34.8 mm (1.4 in)
88
Longest dry spell (CDD)
244 days
2020
92 days
89
Hottest day (TXx)
The hottest day of the year at Parker Rsvr, 1934 to 2026. The record is 51.1 C (124.0 F) in 1950, marked on the chart; the median year is 47.2 C (117.0 F).
Hottest day (TXx) at Parker Rsvr by year
Year
Hottest day (TXx)
1934
48.9 C (120.0 F)
1935
46.7 C (116.1 F)
1936
47.8 C (118.0 F)
1937
48.9 C (120.0 F)
1938
48.3 C (118.9 F)
1939
49.4 C (120.9 F)
1940
49.4 C (120.9 F)
1941
46.1 C (115.0 F)
1942
48.9 C (120.0 F)
1943
26.1 C (79.0 F)
1948
47.2 C (117.0 F)
1949
47.2 C (117.0 F)
1950
51.1 C (124.0 F)
1951
45.6 C (114.1 F)
1952
46.1 C (115.0 F)
1953
46.1 C (115.0 F)
1954
47.8 C (118.0 F)
1955
47.8 C (118.0 F)
1956
46.1 C (115.0 F)
1957
47.8 C (118.0 F)
1958
49.4 C (120.9 F)
1959
47.2 C (117.0 F)
1960
49.4 C (120.9 F)
1961
47.8 C (118.0 F)
1962
47.2 C (117.0 F)
1963
45.0 C (113.0 F)
1964
47.2 C (117.0 F)
1965
46.1 C (115.0 F)
1966
47.2 C (117.0 F)
1967
48.9 C (120.0 F)
1968
46.7 C (116.1 F)
1969
47.2 C (117.0 F)
1970
50.0 C (122.0 F)
1971
47.8 C (118.0 F)
1972
47.8 C (118.0 F)
1973
48.9 C (120.0 F)
1974
47.2 C (117.0 F)
1975
47.2 C (117.0 F)
1976
47.8 C (118.0 F)
1977
46.1 C (115.0 F)
1978
46.1 C (115.0 F)
1979
47.2 C (117.0 F)
1980
47.8 C (118.0 F)
1981
47.2 C (117.0 F)
1982
45.6 C (114.1 F)
1983
47.2 C (117.0 F)
1984
46.7 C (116.1 F)
1985
47.8 C (118.0 F)
1986
46.1 C (115.0 F)
1987
44.4 C (111.9 F)
1988
45.6 C (114.1 F)
1989
48.9 C (120.0 F)
1990
48.9 C (120.0 F)
1991
46.1 C (115.0 F)
1992
46.7 C (116.1 F)
1993
48.3 C (118.9 F)
1994
49.4 C (120.9 F)
1995
49.4 C (120.9 F)
1996
47.8 C (118.0 F)
1997
46.1 C (115.0 F)
1998
50.6 C (123.1 F)
1999
45.6 C (114.1 F)
2000
47.2 C (117.0 F)
2001
48.3 C (118.9 F)
2002
46.7 C (116.1 F)
2003
48.9 C (120.0 F)
2004
46.7 C (116.1 F)
2005
49.4 C (120.9 F)
2006
47.8 C (118.0 F)
2007
48.3 C (118.9 F)
2008
47.2 C (117.0 F)
2009
47.8 C (118.0 F)
2010
47.2 C (117.0 F)
2011
48.3 C (118.9 F)
2012
47.8 C (118.0 F)
2013
46.7 C (116.1 F)
2014
46.7 C (116.1 F)
2015
47.2 C (117.0 F)
2016
47.2 C (117.0 F)
2017
50.0 C (122.0 F)
2018
47.8 C (118.0 F)
2019
47.2 C (117.0 F)
2020
48.9 C (120.0 F)
2021
48.9 C (120.0 F)
2022
47.2 C (117.0 F)
2023
48.9 C (120.0 F)
2024
50.0 C (122.0 F)
2025
48.3 C (118.9 F)
2026
47.2 C (117.0 F)
Coldest night (TNn)
The coldest night of the year at Parker Rsvr, 1934 to 2026. The record is -6.1 C (21.0 F) in 1937, marked on the chart; the median year is 0.6 C (33.1 F).
Coldest night (TNn) at Parker Rsvr by year
Year
Coldest night (TNn)
1934
1.7 C (35.1 F)
1935
-1.1 C (30.0 F)
1936
0.6 C (33.1 F)
1937
-6.1 C (21.0 F)
1938
1.1 C (34.0 F)
1939
0.6 C (33.1 F)
1940
1.7 C (35.1 F)
1941
1.1 C (34.0 F)
1942
0.0 C (32.0 F)
1943
8.9 C (48.0 F)
1948
1.1 C (34.0 F)
1949
-1.7 C (28.9 F)
1950
-3.9 C (25.0 F)
1951
0.0 C (32.0 F)
1952
-1.1 C (30.0 F)
1953
0.0 C (32.0 F)
1954
0.0 C (32.0 F)
1955
0.0 C (32.0 F)
1956
-1.1 C (30.0 F)
1957
1.1 C (34.0 F)
1958
2.2 C (36.0 F)
1959
2.8 C (37.0 F)
1960
-0.6 C (30.9 F)
1961
0.6 C (33.1 F)
1962
-1.7 C (28.9 F)
1963
-2.8 C (27.0 F)
1964
0.6 C (33.1 F)
1965
0.0 C (32.0 F)
1966
0.0 C (32.0 F)
1967
0.6 C (33.1 F)
1968
-1.7 C (28.9 F)
1969
1.1 C (34.0 F)
1970
-1.1 C (30.0 F)
1971
-2.8 C (27.0 F)
1972
-2.2 C (28.0 F)
1973
-1.1 C (30.0 F)
1974
-0.6 C (30.9 F)
1975
0.6 C (33.1 F)
1976
-2.2 C (28.0 F)
1977
1.7 C (35.1 F)
1978
-1.7 C (28.9 F)
1979
-1.7 C (28.9 F)
1980
3.3 C (37.9 F)
1981
2.8 C (37.0 F)
1982
1.1 C (34.0 F)
1983
0.0 C (32.0 F)
1984
1.7 C (35.1 F)
1985
-1.1 C (30.0 F)
1986
1.1 C (34.0 F)
1987
-1.1 C (30.0 F)
1988
-1.1 C (30.0 F)
1989
-2.8 C (27.0 F)
1990
-3.9 C (25.0 F)
1991
1.1 C (34.0 F)
1992
1.7 C (35.1 F)
1993
-0.6 C (30.9 F)
1994
1.7 C (35.1 F)
1995
4.4 C (39.9 F)
1996
2.2 C (36.0 F)
1997
1.7 C (35.1 F)
1998
1.7 C (35.1 F)
1999
3.9 C (39.0 F)
2000
-0.6 C (30.9 F)
2001
2.2 C (36.0 F)
2002
1.1 C (34.0 F)
2003
1.1 C (34.0 F)
2004
2.2 C (36.0 F)
2005
0.6 C (33.1 F)
2006
2.8 C (37.0 F)
2007
0.6 C (33.1 F)
2008
-0.6 C (30.9 F)
2009
1.1 C (34.0 F)
2010
0.6 C (33.1 F)
2011
-1.7 C (28.9 F)
2012
-1.7 C (28.9 F)
2013
-6.1 C (21.0 F)
2014
-2.8 C (27.0 F)
2015
-4.4 C (24.1 F)
2016
2.2 C (36.0 F)
2017
2.8 C (37.0 F)
2018
2.2 C (36.0 F)
2019
0.0 C (32.0 F)
2020
1.7 C (35.1 F)
2021
2.2 C (36.0 F)
2022
0.6 C (33.1 F)
2023
1.1 C (34.0 F)
2024
0.6 C (33.1 F)
2025
1.1 C (34.0 F)
2026
5.6 C (42.1 F)
Wettest day (Rx1day)
The wettest day of the year at Parker Rsvr, 1934 to 2026. The record is 77.5 mm (3.1 in) in 1951, marked on the chart; the median year is 24.6 mm (1.0 in).
Wettest day (Rx1day) at Parker Rsvr by year
Year
Wettest day (Rx1day)
1934
21.3 mm (0.8 in)
1935
25.4 mm (1.0 in)
1936
35.8 mm (1.4 in)
1937
40.6 mm (1.6 in)
1938
28.4 mm (1.1 in)
1939
50.5 mm (2.0 in)
1940
29.0 mm (1.1 in)
1941
24.6 mm (1.0 in)
1942
8.4 mm (0.33 in)
1943
0.0 mm (0.00 in)
1948
33.0 mm (1.3 in)
1949
25.4 mm (1.0 in)
1950
11.9 mm (0.5 in)
1951
77.5 mm (3.1 in)
1952
22.6 mm (0.9 in)
1953
24.9 mm (1.0 in)
1954
24.6 mm (1.0 in)
1955
15.0 mm (0.6 in)
1956
2.5 mm (0.10 in)
1957
16.5 mm (0.6 in)
1958
23.6 mm (0.9 in)
1959
29.2 mm (1.1 in)
1960
18.3 mm (0.7 in)
1961
16.0 mm (0.6 in)
1962
15.5 mm (0.6 in)
1963
20.3 mm (0.8 in)
1964
13.5 mm (0.5 in)
1965
40.6 mm (1.6 in)
1966
24.1 mm (0.9 in)
1967
21.6 mm (0.9 in)
1968
16.0 mm (0.6 in)
1969
12.7 mm (0.5 in)
1970
32.8 mm (1.3 in)
1971
14.0 mm (0.6 in)
1972
26.7 mm (1.1 in)
1973
25.7 mm (1.0 in)
1974
27.9 mm (1.1 in)
1975
20.8 mm (0.8 in)
1976
37.1 mm (1.5 in)
1977
36.8 mm (1.4 in)
1978
59.4 mm (2.3 in)
1979
22.6 mm (0.9 in)
1980
48.3 mm (1.9 in)
1981
37.8 mm (1.5 in)
1982
29.5 mm (1.2 in)
1983
34.8 mm (1.4 in)
1984
24.9 mm (1.0 in)
1985
29.2 mm (1.1 in)
1986
32.5 mm (1.3 in)
1987
19.1 mm (0.8 in)
1988
34.0 mm (1.3 in)
1989
22.6 mm (0.9 in)
1990
20.1 mm (0.8 in)
1991
23.1 mm (0.9 in)
1992
37.3 mm (1.5 in)
1993
30.0 mm (1.2 in)
1994
20.6 mm (0.8 in)
1995
59.7 mm (2.4 in)
1996
10.7 mm (0.4 in)
1997
51.3 mm (2.0 in)
1998
41.7 mm (1.6 in)
1999
26.7 mm (1.1 in)
2000
17.8 mm (0.7 in)
2001
28.7 mm (1.1 in)
2002
23.9 mm (0.9 in)
2003
32.0 mm (1.3 in)
2004
45.0 mm (1.8 in)
2005
44.5 mm (1.8 in)
2006
42.4 mm (1.7 in)
2007
13.7 mm (0.5 in)
2008
23.4 mm (0.9 in)
2009
25.4 mm (1.0 in)
2010
31.0 mm (1.2 in)
2011
23.4 mm (0.9 in)
2012
31.5 mm (1.2 in)
2013
21.8 mm (0.9 in)
2014
25.4 mm (1.0 in)
2015
23.9 mm (0.9 in)
2016
15.2 mm (0.6 in)
2017
17.8 mm (0.7 in)
2018
15.7 mm (0.6 in)
2019
29.2 mm (1.1 in)
2020
24.1 mm (0.9 in)
2021
19.1 mm (0.8 in)
2022
22.9 mm (0.9 in)
2023
13.2 mm (0.5 in)
2024
14.2 mm (0.6 in)
2025
30.5 mm (1.2 in)
2026
7.6 mm (0.30 in)
Wettest five days (Rx5day)
The wettest five days of the year at Parker Rsvr, 1934 to 2026. The record is 120.4 mm (4.7 in) in 1939, marked on the chart; the median year is 34.8 mm (1.4 in).
Wettest five days (Rx5day) at Parker Rsvr by year
Year
Wettest five days (Rx5day)
1934
34.7 mm (1.4 in)
1935
53.1 mm (2.1 in)
1936
44.7 mm (1.8 in)
1937
44.7 mm (1.8 in)
1938
59.9 mm (2.4 in)
1939
120.4 mm (4.7 in)
1940
48.1 mm (1.9 in)
1941
54.9 mm (2.2 in)
1942
10.2 mm (0.4 in)
1943
n/a
1948
33.0 mm (1.3 in)
1949
39.3 mm (1.5 in)
1950
13.2 mm (0.5 in)
1951
99.4 mm (3.9 in)
1952
25.1 mm (1.0 in)
1953
25.9 mm (1.0 in)
1954
45.8 mm (1.8 in)
1955
18.3 mm (0.7 in)
1956
2.5 mm (0.10 in)
1957
31.0 mm (1.2 in)
1958
28.2 mm (1.1 in)
1959
33.6 mm (1.3 in)
1960
35.0 mm (1.4 in)
1961
20.1 mm (0.8 in)
1962
28.5 mm (1.1 in)
1963
26.4 mm (1.0 in)
1964
20.4 mm (0.8 in)
1965
42.7 mm (1.7 in)
1966
25.1 mm (1.0 in)
1967
43.8 mm (1.7 in)
1968
16.0 mm (0.6 in)
1969
22.9 mm (0.9 in)
1970
52.1 mm (2.1 in)
1971
14.5 mm (0.6 in)
1972
33.0 mm (1.3 in)
1973
33.5 mm (1.3 in)
1974
34.3 mm (1.4 in)
1975
21.6 mm (0.9 in)
1976
50.3 mm (2.0 in)
1977
46.5 mm (1.8 in)
1978
82.5 mm (3.2 in)
1979
33.4 mm (1.3 in)
1980
100.1 mm (3.9 in)
1981
39.1 mm (1.5 in)
1982
28.4 mm (1.1 in)
1983
71.4 mm (2.8 in)
1984
47.5 mm (1.9 in)
1985
35.3 mm (1.4 in)
1986
35.6 mm (1.4 in)
1987
25.6 mm (1.0 in)
1988
36.5 mm (1.4 in)
1989
38.6 mm (1.5 in)
1990
20.1 mm (0.8 in)
1991
54.1 mm (2.1 in)
1992
42.1 mm (1.7 in)
1993
54.4 mm (2.1 in)
1994
30.0 mm (1.2 in)
1995
61.5 mm (2.4 in)
1996
10.9 mm (0.4 in)
1997
54.6 mm (2.1 in)
1998
46.5 mm (1.8 in)
1999
32.3 mm (1.3 in)
2000
18.9 mm (0.7 in)
2001
34.0 mm (1.3 in)
2002
37.4 mm (1.5 in)
2003
34.1 mm (1.3 in)
2004
59.7 mm (2.4 in)
2005
65.6 mm (2.6 in)
2006
42.4 mm (1.7 in)
2007
13.7 mm (0.5 in)
2008
33.8 mm (1.3 in)
2009
52.3 mm (2.1 in)
2010
72.4 mm (2.9 in)
2011
40.0 mm (1.6 in)
2012
40.7 mm (1.6 in)
2013
27.6 mm (1.1 in)
2014
33.0 mm (1.3 in)
2015
26.4 mm (1.0 in)
2016
32.5 mm (1.3 in)
2017
41.9 mm (1.6 in)
2018
18.8 mm (0.7 in)
2019
55.6 mm (2.2 in)
2020
36.6 mm (1.4 in)
2021
26.4 mm (1.0 in)
2022
46.8 mm (1.8 in)
2023
24.9 mm (1.0 in)
2024
25.1 mm (1.0 in)
2025
34.8 mm (1.4 in)
2026
9.9 mm (0.39 in)
Longest dry spell (CDD)
The longest dry spell of the year at Parker Rsvr, 1934 to 2026. The record is 244 days in 2020, marked on the chart; the median year is 92 days.
Longest dry spell (CDD) at Parker Rsvr by year
Year
Longest dry spell (CDD)
1934
148 days
1935
70 days
1936
157 days
1937
86 days
1938
56 days
1939
108 days
1940
120 days
1941
83 days
1942
82 days
1943
1 day
1948
64 days
1949
192 days
1950
125 days
1951
78 days
1952
53 days
1953
133 days
1954
100 days
1955
92 days
1956
202 days
1957
55 days
1958
56 days
1959
64 days
1960
70 days
1961
95 days
1962
121 days
1963
120 days
1964
112 days
1965
70 days
1966
126 days
1967
124 days
1968
140 days
1969
72 days
1970
105 days
1971
72 days
1972
158 days
1973
105 days
1974
127 days
1975
142 days
1976
71 days
1977
67 days
1978
85 days
1979
68 days
1980
60 days
1981
56 days
1982
76 days
1983
108 days
1984
203 days
1985
89 days
1986
110 days
1987
129 days
1988
89 days
1989
203 days
1990
68 days
1991
68 days
1992
79 days
1993
131 days
1994
116 days
1995
122 days
1996
79 days
1997
109 days
1998
85 days
1999
101 days
2000
114 days
2001
167 days
2002
77 days
2003
128 days
2004
102 days
2005
92 days
2006
97 days
2007
64 days
2008
76 days
2009
128 days
2010
171 days
2011
85 days
2012
78 days
2013
81 days
2014
59 days
2015
53 days
2016
88 days
2017
61 days
2018
36 days
2019
45 days
2020
244 days
2021
91 days
2022
108 days
2023
150 days
2024
129 days
2025
93 days
2026
121 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.
Rainfall Return Levels
76 years, 1934 to 2025
A day with at least 25.4 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 69.5 mm (2.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Parker Rsvr: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
25.4 mm (1.0 in)
5 years
36.5 mm (1.4 in)
10 years
44.1 mm (1.7 in)
25 years
54.1 mm (2.1 in)
50 years
61.7 mm (2.4 in)
100 years
69.5 mm (2.7 in)
Longer than the 76 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, 76 years of values from 1934 to 2025.
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: 77.5 mm (3.1 in) in 1951; 59.7 mm (2.4 in) in 1995; 59.4 mm (2.3 in) in 1978.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Parker Rsvr, at 1986. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1986 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Parker Rsvr, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1986
-0.4
-0.7
likely
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.
Climate Twins
2004 to 2025 against 1961 to 1990
Over 2004 to 2025, Parker Rsvr had a mean temperature of 23.7 C (74.7 F) and 150.2 mm (5.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Phoenix City (United States, 214 km away), Gila Bend 2SE (United States, 204 km away) and Eagle Mtn (United States, 130 km away).
Climate twins of Parker Rsvr: stations whose 1961 to 1990 climate is closest to its 2004 to 2025 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Parker Rsvr standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Parker Rsvr 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.