Record envelope, standing records and threshold days for Yuma Valley (USC00029657), Arizona, United States, with 63 years of record.
Key Facts for Yuma Valley
Yuma Valley (USC00029657) is a weather station in Arizona, United States at 32.72 latitude and -114.72 longitude, 37 m (120 ft) above sea level.
The station reports from 1930 to 1992, 63 years of record.
1,464 records set at Yuma Valley still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Yuma Valley tied a daily record low maximum temperature of 13.3 C (55.9 F) on 28 December 1992.
About the Station
Location: Arizona, United States, 32.72 latitude, -114.72 longitude.
Elevation: 37 m (120 ft).
Period of record: 1930 to 1992, 63 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 Yuma Valley. 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 Yuma Valley, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
31.1 C (88.0 F)
-10.0 C (14.0 F)
n/a
n/a
Feb
35.0 C (95.0 F)
-6.1 C (21.0 F)
n/a
n/a
Mar
38.3 C (100.9 F)
-3.3 C (26.1 F)
n/a
n/a
Apr
41.7 C (107.1 F)
0.6 C (33.1 F)
n/a
n/a
May
47.8 C (118.0 F)
3.9 C (39.0 F)
n/a
n/a
Jun
48.3 C (118.9 F)
8.9 C (48.0 F)
n/a
n/a
Jul
47.2 C (117.0 F)
12.2 C (54.0 F)
n/a
n/a
Aug
47.8 C (118.0 F)
12.2 C (54.0 F)
n/a
n/a
Sep
47.2 C (117.0 F)
5.6 C (42.1 F)
n/a
n/a
Oct
42.2 C (108.0 F)
-1.7 C (28.9 F)
n/a
n/a
Nov
35.6 C (96.1 F)
-4.4 C (24.1 F)
n/a
n/a
Dec
31.1 C (88.0 F)
-5.0 C (23.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Yuma Valley still stand. 1933 holds the most, with 52.
Standing records at Yuma Valley by the year they were set
Year set
Standing records
1930
9
1931
42
1932
38
1933
52
1934
43
1935
41
1936
37
1937
33
1938
41
1939
28
1940
22
1941
22
1942
18
1943
21
1944
27
1945
25
1946
19
1947
25
1948
32
1949
45
1950
31
1951
20
1952
18
1953
31
1954
7
1958
44
1959
23
1960
20
1961
13
1962
23
1963
33
1964
38
1965
19
1966
25
1967
16
1968
16
1969
34
1970
16
1971
42
1972
18
1973
14
1974
10
1975
14
1976
22
1977
20
1978
17
1979
10
1980
27
1981
16
1982
14
1983
17
1984
20
1985
28
1986
27
1987
21
1988
14
1989
14
1990
23
1991
22
1992
7
All-Time Record Progression
2 new records
2 all-time records were set at Yuma Valley between 16 August 1977 and 29 June 1985. Each dot is a new record.
When Yuma Valley set new all-time records
Date
Kind
Detail
1977-08-16
Record daily precipitation
Record daily precipitation 163.8 mm (6.4 in)
1985-06-29
Record high maximum temperature
Record high maximum temperature 48.3 C (118.9 F)
Wettest Day of Each Month
Aug: 163.8 mm (6.4 in)
The wettest day on record for each calendar month at Yuma Valley. The most was 163.8 mm (6.4 in) on 16 August 1977.
Record daily precipitation for each month at Yuma Valley
Month
Record daily precipitation (mm)
Date
Jan
32.0 mm (1.3 in)
17 January 1979
Feb
27.7 mm (1.1 in)
28 February 1945
Mar
24.4 mm (1.0 in)
2 March 1970
Apr
19.8 mm (0.8 in)
29 April 1933
May
9.1 mm (0.36 in)
20 May 1979
Jun
4.1 mm (0.16 in)
2 June 1948
Jul
29.7 mm (1.2 in)
14 July 1984
Aug
163.8 mm (6.4 in)
16 August 1977
Sep
49.5 mm (1.9 in)
18 September 1963
Oct
42.4 mm (1.7 in)
7 October 1972
Nov
33.5 mm (1.3 in)
27 November 1967
Dec
36.1 mm (1.4 in)
15 December 1961
Period of Record Coverage
1930 to 1992
Complete yearUnder 90 percent of days
60 years of record at Yuma Valley, 1930 to 1992. 7 years have data for under 90 percent of days and are left out of rankings: 1930, 1935, 1944, 1954, 1988, 1991, 1992.
Cooler than the station meanWarmer than the station mean
One stripe for each of 46 complete years at Yuma Valley, 1932 to 1990. Blue stripes are years cooler than the station's own mean of 21.5 C (70.7 F); red stripes are warmer. The coolest year was 1932, at 20.1 C (68.1 F), and the warmest was 1989, at 22.7 C (72.9 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Yuma Valley as warming stripes, 1932 to 1990
Year
Annual mean temperature
Difference from the station mean
1932
20.1 C
-1.48 C
1933
20.4 C
-1.15 C
1934
21.6 C
+0.09 C
1936
21.4 C
-0.12 C
1938
20.3 C
-1.27 C
1939
20.7 C
-0.80 C
1940
21.6 C
+0.03 C
1941
20.4 C
-1.12 C
1942
20.7 C
-0.85 C
1943
21.4 C
-0.17 C
1945
20.6 C
-0.96 C
1946
21.5 C
-0.06 C
1947
21.3 C
-0.21 C
1948
21.0 C
-0.55 C
1950
22.0 C
+0.47 C
1951
21.3 C
-0.20 C
1952
21.8 C
+0.25 C
1953
21.6 C
+0.06 C
1958
22.2 C
+0.62 C
1962
21.9 C
+0.35 C
1963
21.5 C
+0.01 C
1964
20.6 C
-0.90 C
1965
21.2 C
-0.36 C
1966
22.2 C
+0.71 C
1967
21.7 C
+0.14 C
1968
22.0 C
+0.48 C
1969
22.3 C
+0.80 C
1970
21.8 C
+0.24 C
1971
20.5 C
-1.00 C
1972
21.4 C
-0.12 C
1973
21.3 C
-0.21 C
1974
21.9 C
+0.40 C
1975
20.9 C
-0.65 C
1976
21.5 C
-0.03 C
1977
22.1 C
+0.61 C
1978
22.1 C
+0.55 C
1979
21.6 C
+0.04 C
1980
22.2 C
+0.63 C
1981
22.7 C
+1.16 C
1983
22.2 C
+0.64 C
1984
22.0 C
+0.49 C
1985
21.9 C
+0.34 C
1986
22.5 C
+0.95 C
1987
22.1 C
+0.60 C
1989
22.7 C
+1.17 C
1990
21.8 C
+0.25 C
The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1932 to 1990. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Yuma Valley
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.2 to 0.3) per decade
0.4 F (0.3 to 0.6) per decade
1932 to 1990
46
Rise
Mean daily maximum
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.3) per decade
1932 to 1990
46
Not clearly different from zero
Mean daily minimum
0.4 C (0.3 to 0.5) per decade
0.8 F (0.6 to 0.9) per decade
1932 to 1990
46
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
1930 to 1992
Yearly extremes at Yuma Valley: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
48.3 C (118.9 F)
1985
45.0 C (113.0 F)
60
Coldest night (TNn)
-10.0 C (14.0 F)
1937
-3.3 C (26.1 F)
60
Wettest day (Rx1day)
163.8 mm (6.4 in)
1977
18.8 mm (0.7 in)
60
Wettest five days (Rx5day)
178.0 mm (7.0 in)
1977
21.9 mm (0.9 in)
60
Longest dry spell (CDD)
279 days
1943
128 days
60
Hottest day (TXx)
The hottest day of the year at Yuma Valley, 1930 to 1992. The record is 48.3 C (118.9 F) in 1985, marked on the chart; the median year is 45.0 C (113.0 F).
Hottest day (TXx) at Yuma Valley by year
Year
Hottest day (TXx)
1930
32.2 C (90.0 F)
1931
45.0 C (113.0 F)
1932
43.9 C (111.0 F)
1933
47.2 C (117.0 F)
1934
45.0 C (113.0 F)
1935
44.4 C (111.9 F)
1936
45.0 C (113.0 F)
1937
46.1 C (115.0 F)
1938
44.4 C (111.9 F)
1939
46.1 C (115.0 F)
1940
45.6 C (114.1 F)
1941
43.9 C (111.0 F)
1942
45.0 C (113.0 F)
1943
46.7 C (116.1 F)
1944
45.6 C (114.1 F)
1945
44.4 C (111.9 F)
1946
45.0 C (113.0 F)
1947
46.1 C (115.0 F)
1948
47.2 C (117.0 F)
1949
46.1 C (115.0 F)
1950
47.2 C (117.0 F)
1951
45.6 C (114.1 F)
1952
45.6 C (114.1 F)
1953
45.0 C (113.0 F)
1954
33.3 C (91.9 F)
1958
47.2 C (117.0 F)
1959
45.0 C (113.0 F)
1960
45.0 C (113.0 F)
1961
47.8 C (118.0 F)
1962
46.1 C (115.0 F)
1963
46.1 C (115.0 F)
1964
46.1 C (115.0 F)
1965
45.6 C (114.1 F)
1966
45.0 C (113.0 F)
1967
44.4 C (111.9 F)
1968
46.7 C (116.1 F)
1969
47.8 C (118.0 F)
1970
46.1 C (115.0 F)
1971
45.0 C (113.0 F)
1972
45.6 C (114.1 F)
1973
45.0 C (113.0 F)
1974
46.1 C (115.0 F)
1975
45.0 C (113.0 F)
1976
45.0 C (113.0 F)
1977
44.4 C (111.9 F)
1978
45.0 C (113.0 F)
1979
44.4 C (111.9 F)
1980
43.9 C (111.0 F)
1981
45.6 C (114.1 F)
1982
44.4 C (111.9 F)
1983
47.8 C (118.0 F)
1984
45.0 C (113.0 F)
1985
48.3 C (118.9 F)
1986
45.0 C (113.0 F)
1987
44.4 C (111.9 F)
1988
43.3 C (109.9 F)
1989
45.6 C (114.1 F)
1990
47.8 C (118.0 F)
1991
42.2 C (108.0 F)
1992
45.0 C (113.0 F)
Coldest night (TNn)
The coldest night of the year at Yuma Valley, 1930 to 1992. The record is -10.0 C (14.0 F) in 1937, marked on the chart; the median year is -3.3 C (26.1 F).
Coldest night (TNn) at Yuma Valley by year
Year
Coldest night (TNn)
1930
-4.4 C (24.1 F)
1931
-3.9 C (25.0 F)
1932
-7.2 C (19.0 F)
1933
-5.0 C (23.0 F)
1934
-3.9 C (25.0 F)
1935
-2.8 C (27.0 F)
1936
-3.9 C (25.0 F)
1937
-10.0 C (14.0 F)
1938
-4.4 C (24.1 F)
1939
-4.4 C (24.1 F)
1940
-2.2 C (28.0 F)
1941
-2.8 C (27.0 F)
1942
-2.2 C (28.0 F)
1943
-4.4 C (24.1 F)
1944
-3.9 C (25.0 F)
1945
-3.3 C (26.1 F)
1946
-2.8 C (27.0 F)
1947
-3.9 C (25.0 F)
1948
-6.1 C (21.0 F)
1949
-6.1 C (21.0 F)
1950
-5.6 C (21.9 F)
1951
-4.4 C (24.1 F)
1952
-5.6 C (21.9 F)
1953
-3.3 C (26.1 F)
1954
-2.8 C (27.0 F)
1958
-3.9 C (25.0 F)
1959
0.0 C (32.0 F)
1960
-3.9 C (25.0 F)
1961
-1.1 C (30.0 F)
1962
-5.0 C (23.0 F)
1963
-7.2 C (19.0 F)
1964
-5.6 C (21.9 F)
1965
-2.8 C (27.0 F)
1966
-2.2 C (28.0 F)
1967
-1.7 C (28.9 F)
1968
-3.9 C (25.0 F)
1969
-2.2 C (28.0 F)
1970
-3.9 C (25.0 F)
1971
-5.6 C (21.9 F)
1972
-3.3 C (26.1 F)
1973
-3.3 C (26.1 F)
1974
-3.3 C (26.1 F)
1975
-2.8 C (27.0 F)
1976
-3.3 C (26.1 F)
1977
-1.1 C (30.0 F)
1978
-5.0 C (23.0 F)
1979
-2.8 C (27.0 F)
1980
1.1 C (34.0 F)
1981
-0.6 C (30.9 F)
1982
-2.2 C (28.0 F)
1983
-1.7 C (28.9 F)
1984
-1.7 C (28.9 F)
1985
-2.8 C (27.0 F)
1986
-1.7 C (28.9 F)
1987
-4.4 C (24.1 F)
1988
-3.3 C (26.1 F)
1989
-1.1 C (30.0 F)
1990
-3.9 C (25.0 F)
1991
-2.2 C (28.0 F)
1992
-1.1 C (30.0 F)
Wettest day (Rx1day)
The wettest day of the year at Yuma Valley, 1930 to 1992. The record is 163.8 mm (6.4 in) in 1977, marked on the chart; the median year is 18.8 mm (0.7 in).
Wettest day (Rx1day) at Yuma Valley by year
Year
Wettest day (Rx1day)
1930
3.3 mm (0.13 in)
1931
18.8 mm (0.7 in)
1932
32.8 mm (1.3 in)
1933
19.8 mm (0.8 in)
1934
18.8 mm (0.7 in)
1935
34.0 mm (1.3 in)
1936
20.8 mm (0.8 in)
1937
17.5 mm (0.7 in)
1938
14.5 mm (0.6 in)
1939
42.4 mm (1.7 in)
1940
28.2 mm (1.1 in)
1941
25.4 mm (1.0 in)
1942
19.6 mm (0.8 in)
1943
11.4 mm (0.4 in)
1944
19.3 mm (0.8 in)
1945
27.7 mm (1.1 in)
1946
11.4 mm (0.4 in)
1947
3.6 mm (0.14 in)
1948
27.2 mm (1.1 in)
1949
19.1 mm (0.8 in)
1950
29.2 mm (1.1 in)
1951
15.5 mm (0.6 in)
1952
9.7 mm (0.38 in)
1953
5.6 mm (0.22 in)
1954
5.6 mm (0.22 in)
1958
4.8 mm (0.19 in)
1959
16.5 mm (0.6 in)
1960
7.6 mm (0.30 in)
1961
36.1 mm (1.4 in)
1962
9.1 mm (0.36 in)
1963
49.5 mm (1.9 in)
1964
6.9 mm (0.27 in)
1965
18.8 mm (0.7 in)
1966
25.4 mm (1.0 in)
1967
33.5 mm (1.3 in)
1968
8.4 mm (0.33 in)
1969
31.2 mm (1.2 in)
1970
24.4 mm (1.0 in)
1971
26.7 mm (1.1 in)
1972
42.4 mm (1.7 in)
1973
6.9 mm (0.27 in)
1974
9.4 mm (0.37 in)
1975
10.9 mm (0.4 in)
1976
18.8 mm (0.7 in)
1977
163.8 mm (6.4 in)
1978
19.8 mm (0.8 in)
1979
32.0 mm (1.3 in)
1980
10.4 mm (0.4 in)
1981
13.5 mm (0.5 in)
1982
24.4 mm (1.0 in)
1983
13.0 mm (0.5 in)
1984
29.7 mm (1.2 in)
1985
14.5 mm (0.6 in)
1986
11.4 mm (0.4 in)
1987
16.3 mm (0.6 in)
1988
12.7 mm (0.5 in)
1989
43.9 mm (1.7 in)
1990
5.8 mm (0.23 in)
1991
7.6 mm (0.30 in)
1992
21.6 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Yuma Valley, 1930 to 1992. The record is 178.0 mm (7.0 in) in 1977, marked on the chart; the median year is 21.9 mm (0.9 in).
Wettest five days (Rx5day) at Yuma Valley by year
Year
Wettest five days (Rx5day)
1930
3.3 mm (0.13 in)
1931
33.5 mm (1.3 in)
1932
49.6 mm (2.0 in)
1933
26.6 mm (1.0 in)
1934
18.8 mm (0.7 in)
1935
34.0 mm (1.3 in)
1936
20.8 mm (0.8 in)
1937
17.5 mm (0.7 in)
1938
17.6 mm (0.7 in)
1939
72.9 mm (2.9 in)
1940
28.2 mm (1.1 in)
1941
25.4 mm (1.0 in)
1942
21.6 mm (0.9 in)
1943
12.0 mm (0.5 in)
1944
21.3 mm (0.8 in)
1945
34.1 mm (1.3 in)
1946
11.4 mm (0.4 in)
1947
6.4 mm (0.25 in)
1948
27.2 mm (1.1 in)
1949
19.1 mm (0.8 in)
1950
32.5 mm (1.3 in)
1951
22.2 mm (0.9 in)
1952
15.8 mm (0.6 in)
1953
5.6 mm (0.22 in)
1954
7.7 mm (0.30 in)
1958
4.8 mm (0.19 in)
1959
26.7 mm (1.1 in)
1960
7.6 mm (0.30 in)
1961
39.4 mm (1.6 in)
1962
12.7 mm (0.5 in)
1963
49.5 mm (1.9 in)
1964
7.9 mm (0.31 in)
1965
30.5 mm (1.2 in)
1966
29.0 mm (1.1 in)
1967
48.0 mm (1.9 in)
1968
11.2 mm (0.4 in)
1969
33.0 mm (1.3 in)
1970
32.5 mm (1.3 in)
1971
26.7 mm (1.1 in)
1972
63.5 mm (2.5 in)
1973
12.5 mm (0.5 in)
1974
11.9 mm (0.5 in)
1975
12.9 mm (0.5 in)
1976
30.7 mm (1.2 in)
1977
178.0 mm (7.0 in)
1978
22.4 mm (0.9 in)
1979
32.0 mm (1.3 in)
1980
18.0 mm (0.7 in)
1981
23.7 mm (0.9 in)
1982
46.2 mm (1.8 in)
1983
13.5 mm (0.5 in)
1984
30.5 mm (1.2 in)
1985
15.3 mm (0.6 in)
1986
20.5 mm (0.8 in)
1987
16.6 mm (0.7 in)
1988
13.5 mm (0.5 in)
1989
43.9 mm (1.7 in)
1990
5.8 mm (0.23 in)
1991
14.0 mm (0.6 in)
1992
27.4 mm (1.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Yuma Valley, 1930 to 1992. The record is 279 days in 1943, marked on the chart; the median year is 128 days.
Longest dry spell (CDD) at Yuma Valley by year
Year
Longest dry spell (CDD)
1930
33 days
1931
86 days
1932
160 days
1933
107 days
1934
133 days
1935
164 days
1936
154 days
1937
101 days
1938
135 days
1939
147 days
1940
89 days
1941
102 days
1942
120 days
1943
279 days
1944
196 days
1945
136 days
1946
198 days
1947
139 days
1948
84 days
1949
112 days
1950
127 days
1951
129 days
1952
87 days
1953
126 days
1954
44 days
1958
153 days
1959
157 days
1960
152 days
1961
199 days
1962
212 days
1963
114 days
1964
94 days
1965
110 days
1966
87 days
1967
115 days
1968
145 days
1969
123 days
1970
173 days
1971
108 days
1972
158 days
1973
253 days
1974
226 days
1975
246 days
1976
75 days
1977
79 days
1978
124 days
1979
130 days
1980
122 days
1981
160 days
1982
121 days
1983
155 days
1984
97 days
1985
225 days
1986
66 days
1987
174 days
1988
125 days
1989
140 days
1990
161 days
1991
113 days
1992
127 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
40 years with a frost
Across 40 years with a frost, the median last spring frost at Yuma Valley falls on 18 February and the median first autumn frost on 2 December, which leaves a median of 288 days between them.
Fitted over all years, the growing season changes by +7.2 days per decade at this station.
Frost dates and growing season at Yuma Valley
Measure
Median, all years
Earliest period
Recent period (1945 to 1990)
Recent against earliest
Fitted trend
Last spring frost
18 February
n/a
15 February
n/a
-3.3 days per decade
First autumn frost
2 December
n/a
7 December
n/a
+3.9 days per decade
Growing days
288 days
n/a
289 days
n/a
+7.2 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
57 years, 1931 to 1991
A day with at least 17.4 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 97.0 mm (3.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Yuma Valley: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
17.4 mm (0.7 in)
5 years
30.4 mm (1.2 in)
10 years
41.6 mm (1.6 in)
25 years
59.6 mm (2.3 in)
50 years
76.5 mm (3.0 in)
100 years
97.0 mm (3.8 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 1931 to 1991.
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: 163.8 mm (6.4 in) in 1977; 49.5 mm (1.9 in) in 1963; 43.9 mm (1.7 in) in 1989.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Yuma Valley standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Yuma Valley 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.