Record envelope, standing records and threshold days for Leupp (USC00024872), Arizona, United States, with 68 years of record.
Key Facts for Leupp
Leupp (USC00024872) is a weather station in Arizona, United States at 35.28 latitude and -110.97 longitude, 1,434 m (4,705 ft) above sea level.
The station reports from 1914 to 1981, 68 years of record.
1,464 records set at Leupp still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Leupp set a monthly record high maximum temperature of 33.3 C (91.9 F) on 30 April 1981.
About the Station
Location: Arizona, United States, 35.28 latitude, -110.97 longitude.
Elevation: 1,434 m (4,705 ft).
Period of record: 1914 to 1981, 68 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 Leupp. 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 Leupp, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.1 C (79.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Feb
26.7 C (80.1 F)
-22.8 C (-9.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-16.1 C (3.0 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-12.8 C (9.0 F)
n/a
n/a
May
37.2 C (99.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
43.3 C (109.9 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
42.2 C (108.0 F)
0.0 C (32.0 F)
n/a
n/a
Aug
42.8 C (109.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
40.6 C (105.1 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-11.7 C (10.9 F)
n/a
n/a
Nov
28.9 C (84.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Dec
25.6 C (78.1 F)
-26.7 C (-16.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Leupp still stand. 1937 holds the most, with 48.
Standing records at Leupp by the year they were set
Year set
Standing records
1914
2
1915
30
1916
9
1917
17
1918
29
1919
32
1920
21
1921
28
1922
23
1925
24
1934
12
1935
25
1936
14
1937
48
1938
42
1939
25
1940
25
1941
11
1942
46
1943
19
1945
35
1946
45
1947
19
1948
33
1949
31
1950
31
1951
31
1952
28
1953
15
1954
19
1955
42
1956
35
1957
27
1958
28
1959
20
1960
27
1961
23
1962
27
1963
19
1964
23
1965
30
1966
19
1967
30
1968
32
1969
36
1970
32
1971
29
1972
25
1973
26
1974
28
1975
20
1976
20
1977
26
1978
19
1979
24
1980
24
1981
4
All-Time Record Progression
4 new records
4 all-time records were set at Leupp between 11 July 1958 and 26 June 1970. Each dot is a new record.
When Leupp set new all-time records
Date
Kind
Detail
1958-07-11
Record high maximum temperature
Record high maximum temperature 41.7 C (107.1 F)
1968-01-07
Record low maximum temperature
Record low maximum temperature -12.8 C (9.0 F)
1969-08-08
Record high maximum temperature
Record high maximum temperature 42.2 C (108.0 F)
1970-06-26
Record high maximum temperature
Record high maximum temperature 43.3 C (109.9 F)
Wettest Day of Each Month
Jul: 72.6 mm (2.9 in)
The wettest day on record for each calendar month at Leupp. The most was 72.6 mm (2.9 in) on 28 July 1951.
Record daily precipitation for each month at Leupp
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
5 January 1935
Feb
25.7 mm (1.0 in)
15 February 1980
Mar
31.0 mm (1.2 in)
31 March 1970
Apr
24.4 mm (1.0 in)
9 April 1926
May
19.3 mm (0.8 in)
7 May 1969
Jun
51.8 mm (2.0 in)
13 June 1955
Jul
72.6 mm (2.9 in)
28 July 1951
Aug
30.5 mm (1.2 in)
25 August 1940
Sep
33.5 mm (1.3 in)
5 September 1970
Oct
38.1 mm (1.5 in)
19 October 1972
Nov
22.9 mm (0.9 in)
16 November 1925
Dec
25.7 mm (1.0 in)
18 December 1914
Period of Record Coverage
1914 to 1981
Complete yearUnder 90 percent of days
59 years of record at Leupp, 1914 to 1981. 16 years have data for under 90 percent of days and are left out of rankings: 1914, 1916, 1920, 1921, 1922, 1924, 1925, 1926 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 40 complete years at Leupp, 1916 to 1979. Blue stripes are years cooler than the station's own mean of 11.9 C (53.5 F); red stripes are warmer. The coolest year was 1975, at 10.6 C (51.1 F), and the warmest was 1935, at 13.2 C (55.8 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Leupp as warming stripes, 1916 to 1979
Year
Annual mean temperature
Difference from the station mean
1916
11.8 C
-0.17 C
1917
11.3 C
-0.60 C
1918
11.7 C
-0.21 C
1919
11.5 C
-0.43 C
1935
13.2 C
+1.28 C
1936
12.9 C
+0.97 C
1937
11.7 C
-0.24 C
1938
11.7 C
-0.19 C
1941
12.1 C
+0.18 C
1948
12.0 C
+0.03 C
1949
11.2 C
-0.71 C
1950
12.8 C
+0.83 C
1951
12.1 C
+0.12 C
1952
11.9 C
-0.07 C
1953
11.8 C
-0.13 C
1954
12.7 C
+0.76 C
1955
11.5 C
-0.41 C
1956
11.7 C
-0.28 C
1957
12.4 C
+0.49 C
1958
12.9 C
+0.99 C
1959
12.5 C
+0.56 C
1960
12.3 C
+0.32 C
1961
11.6 C
-0.30 C
1962
11.8 C
-0.10 C
1963
12.4 C
+0.42 C
1964
11.4 C
-0.58 C
1965
11.7 C
-0.19 C
1966
12.1 C
+0.17 C
1967
11.6 C
-0.33 C
1968
10.7 C
-1.28 C
1969
12.5 C
+0.54 C
1970
12.3 C
+0.32 C
1971
11.6 C
-0.34 C
1972
12.6 C
+0.64 C
1973
11.6 C
-0.31 C
1974
12.1 C
+0.12 C
1975
10.6 C
-1.34 C
1976
11.3 C
-0.60 C
1977
12.2 C
+0.26 C
1979
11.6 C
-0.30 C
The fitted trend in annual mean temperature here over 1916 to 1979 is -0.03 C (-0.13 to 0.08) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.05 F (-0.24 to 0.15) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Leupp
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.03 C (-0.13 to 0.08) per decade
-0.05 F (-0.24 to 0.15) per decade
1916 to 1979
40
Not clearly different from zero
Mean daily maximum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.1 to 0.6) per decade
1916 to 1979
40
Rise
Mean daily minimum
-0.3 C (-0.4 to -0.1) per decade
-0.5 F (-0.7 to -0.2) per decade
1916 to 1979
40
Fall
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 1981
Yearly extremes at Leupp: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.3 C (109.9 F)
1970
39.4 C (102.9 F)
59
Coldest night (TNn)
-28.3 C (-18.9 F)
1937
-19.4 C (-2.9 F)
59
Wettest day (Rx1day)
72.6 mm (2.9 in)
1951
19.1 mm (0.8 in)
59
Wettest five days (Rx5day)
79.6 mm (3.1 in)
1972
28.0 mm (1.1 in)
59
Longest dry spell (CDD)
179 days
1974
61 days
59
Hottest day (TXx)
The hottest day of the year at Leupp, 1914 to 1981. The record is 43.3 C (109.9 F) in 1970, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Leupp by year
Year
Hottest day (TXx)
1914
23.9 C (75.0 F)
1915
36.7 C (98.1 F)
1916
38.3 C (100.9 F)
1917
39.4 C (102.9 F)
1918
38.9 C (102.0 F)
1919
40.6 C (105.1 F)
1920
38.9 C (102.0 F)
1921
38.9 C (102.0 F)
1922
39.4 C (102.9 F)
1924
25.0 C (77.0 F)
1925
40.6 C (105.1 F)
1926
30.0 C (86.0 F)
1934
40.6 C (105.1 F)
1935
39.4 C (102.9 F)
1936
38.9 C (102.0 F)
1937
38.9 C (102.0 F)
1938
40.0 C (104.0 F)
1939
41.1 C (106.0 F)
1940
40.6 C (105.1 F)
1941
37.2 C (99.0 F)
1942
41.1 C (106.0 F)
1943
31.1 C (88.0 F)
1945
41.1 C (106.0 F)
1946
40.6 C (105.1 F)
1947
36.7 C (98.1 F)
1948
39.4 C (102.9 F)
1949
38.9 C (102.0 F)
1950
39.4 C (102.9 F)
1951
39.4 C (102.9 F)
1952
38.3 C (100.9 F)
1953
38.3 C (100.9 F)
1954
40.6 C (105.1 F)
1955
37.8 C (100.0 F)
1956
40.0 C (104.0 F)
1957
38.9 C (102.0 F)
1958
41.7 C (107.1 F)
1959
39.4 C (102.9 F)
1960
39.4 C (102.9 F)
1961
39.4 C (102.9 F)
1962
41.1 C (106.0 F)
1963
39.4 C (102.9 F)
1964
38.9 C (102.0 F)
1965
37.8 C (100.0 F)
1966
38.9 C (102.0 F)
1967
38.9 C (102.0 F)
1968
39.4 C (102.9 F)
1969
42.2 C (108.0 F)
1970
43.3 C (109.9 F)
1971
42.2 C (108.0 F)
1972
40.6 C (105.1 F)
1973
40.6 C (105.1 F)
1974
40.6 C (105.1 F)
1975
38.9 C (102.0 F)
1976
38.9 C (102.0 F)
1977
39.4 C (102.9 F)
1978
40.0 C (104.0 F)
1979
40.0 C (104.0 F)
1980
40.6 C (105.1 F)
1981
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Leupp, 1914 to 1981. The record is -28.3 C (-18.9 F) in 1937, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Leupp by year
Year
Coldest night (TNn)
1914
-14.4 C (6.1 F)
1915
-13.9 C (7.0 F)
1916
-24.4 C (-11.9 F)
1917
-12.8 C (9.0 F)
1918
-23.3 C (-9.9 F)
1919
-24.4 C (-11.9 F)
1920
-18.9 C (-2.0 F)
1921
-13.3 C (8.1 F)
1922
-18.3 C (-0.9 F)
1924
-20.0 C (-4.0 F)
1925
-18.3 C (-0.9 F)
1926
-8.3 C (17.1 F)
1934
-15.0 C (5.0 F)
1935
-16.7 C (1.9 F)
1936
-13.3 C (8.1 F)
1937
-28.3 C (-18.9 F)
1938
-19.4 C (-2.9 F)
1939
-20.0 C (-4.0 F)
1940
-12.8 C (9.0 F)
1941
-12.8 C (9.0 F)
1942
-22.2 C (-8.0 F)
1943
-17.8 C (0.0 F)
1945
-23.3 C (-9.9 F)
1946
-15.6 C (3.9 F)
1947
-20.0 C (-4.0 F)
1948
-18.9 C (-2.0 F)
1949
-26.1 C (-15.0 F)
1950
-20.6 C (-5.1 F)
1951
-19.4 C (-2.9 F)
1952
-16.7 C (1.9 F)
1953
-21.7 C (-7.1 F)
1954
-21.7 C (-7.1 F)
1955
-19.4 C (-2.9 F)
1956
-20.6 C (-5.1 F)
1957
-14.4 C (6.1 F)
1958
-15.6 C (3.9 F)
1959
-16.1 C (3.0 F)
1960
-21.1 C (-6.0 F)
1961
-25.0 C (-13.0 F)
1962
-20.6 C (-5.1 F)
1963
-27.8 C (-18.0 F)
1964
-21.7 C (-7.1 F)
1965
-15.6 C (3.9 F)
1966
-22.8 C (-9.0 F)
1967
-26.7 C (-16.1 F)
1968
-25.0 C (-13.0 F)
1969
-19.4 C (-2.9 F)
1970
-22.2 C (-8.0 F)
1971
-27.8 C (-18.0 F)
1972
-16.7 C (1.9 F)
1973
-16.1 C (3.0 F)
1974
-23.3 C (-9.9 F)
1975
-22.2 C (-8.0 F)
1976
-20.0 C (-4.0 F)
1977
-23.9 C (-11.0 F)
1978
-23.3 C (-9.9 F)
1979
-17.2 C (1.0 F)
1980
-15.6 C (3.9 F)
1981
-15.0 C (5.0 F)
Wettest day (Rx1day)
The wettest day of the year at Leupp, 1914 to 1981. The record is 72.6 mm (2.9 in) in 1951, marked on the chart; the median year is 19.1 mm (0.8 in).
Wettest day (Rx1day) at Leupp by year
Year
Wettest day (Rx1day)
1914
25.7 mm (1.0 in)
1915
20.3 mm (0.8 in)
1916
17.8 mm (0.7 in)
1917
20.3 mm (0.8 in)
1918
17.8 mm (0.7 in)
1919
29.2 mm (1.1 in)
1920
15.2 mm (0.6 in)
1921
15.2 mm (0.6 in)
1922
14.0 mm (0.6 in)
1924
7.4 mm (0.29 in)
1925
24.1 mm (0.9 in)
1926
24.4 mm (1.0 in)
1934
13.0 mm (0.5 in)
1935
25.4 mm (1.0 in)
1936
12.7 mm (0.5 in)
1937
21.8 mm (0.9 in)
1938
14.0 mm (0.6 in)
1939
12.2 mm (0.5 in)
1940
30.5 mm (1.2 in)
1941
17.8 mm (0.7 in)
1942
23.6 mm (0.9 in)
1943
16.5 mm (0.6 in)
1945
19.1 mm (0.8 in)
1946
21.6 mm (0.9 in)
1947
24.1 mm (0.9 in)
1948
16.3 mm (0.6 in)
1949
17.8 mm (0.7 in)
1950
13.5 mm (0.5 in)
1951
72.6 mm (2.9 in)
1952
31.0 mm (1.2 in)
1953
32.0 mm (1.3 in)
1954
17.8 mm (0.7 in)
1955
51.8 mm (2.0 in)
1956
14.7 mm (0.6 in)
1957
15.0 mm (0.6 in)
1958
18.8 mm (0.7 in)
1959
27.9 mm (1.1 in)
1960
22.9 mm (0.9 in)
1961
22.9 mm (0.9 in)
1962
25.7 mm (1.0 in)
1963
17.0 mm (0.7 in)
1964
15.5 mm (0.6 in)
1965
13.5 mm (0.5 in)
1966
16.0 mm (0.6 in)
1967
27.4 mm (1.1 in)
1968
11.7 mm (0.5 in)
1969
19.3 mm (0.8 in)
1970
33.5 mm (1.3 in)
1971
54.4 mm (2.1 in)
1972
38.1 mm (1.5 in)
1973
13.0 mm (0.5 in)
1974
38.4 mm (1.5 in)
1975
21.1 mm (0.8 in)
1976
10.7 mm (0.4 in)
1977
32.3 mm (1.3 in)
1978
18.3 mm (0.7 in)
1979
12.7 mm (0.5 in)
1980
25.7 mm (1.0 in)
1981
7.6 mm (0.30 in)
Wettest five days (Rx5day)
The wettest five days of the year at Leupp, 1914 to 1981. The record is 79.6 mm (3.1 in) in 1972, marked on the chart; the median year is 28.0 mm (1.1 in).
Wettest five days (Rx5day) at Leupp by year
Year
Wettest five days (Rx5day)
1914
26.5 mm (1.0 in)
1915
30.5 mm (1.2 in)
1916
30.5 mm (1.2 in)
1917
28.9 mm (1.1 in)
1918
25.9 mm (1.0 in)
1919
34.3 mm (1.4 in)
1920
26.1 mm (1.0 in)
1921
15.7 mm (0.6 in)
1922
15.3 mm (0.6 in)
1924
9.9 mm (0.39 in)
1925
45.7 mm (1.8 in)
1926
28.0 mm (1.1 in)
1934
18.3 mm (0.7 in)
1935
43.2 mm (1.7 in)
1936
21.6 mm (0.9 in)
1937
24.6 mm (1.0 in)
1938
15.2 mm (0.6 in)
1939
13.4 mm (0.5 in)
1940
30.5 mm (1.2 in)
1941
30.0 mm (1.2 in)
1942
38.1 mm (1.5 in)
1943
19.0 mm (0.7 in)
1945
19.1 mm (0.8 in)
1946
34.3 mm (1.4 in)
1947
42.7 mm (1.7 in)
1948
22.9 mm (0.9 in)
1949
26.9 mm (1.1 in)
1950
21.8 mm (0.9 in)
1951
73.1 mm (2.9 in)
1952
52.1 mm (2.1 in)
1953
53.1 mm (2.1 in)
1954
21.3 mm (0.8 in)
1955
75.7 mm (3.0 in)
1956
15.2 mm (0.6 in)
1957
25.5 mm (1.0 in)
1958
36.0 mm (1.4 in)
1959
31.5 mm (1.2 in)
1960
44.4 mm (1.7 in)
1961
24.4 mm (1.0 in)
1962
37.4 mm (1.5 in)
1963
20.9 mm (0.8 in)
1964
16.3 mm (0.6 in)
1965
24.2 mm (1.0 in)
1966
24.6 mm (1.0 in)
1967
42.2 mm (1.7 in)
1968
13.0 mm (0.5 in)
1969
28.2 mm (1.1 in)
1970
43.1 mm (1.7 in)
1971
54.7 mm (2.2 in)
1972
79.6 mm (3.1 in)
1973
25.4 mm (1.0 in)
1974
42.4 mm (1.7 in)
1975
36.6 mm (1.4 in)
1976
18.7 mm (0.7 in)
1977
32.3 mm (1.3 in)
1978
31.6 mm (1.2 in)
1979
18.3 mm (0.7 in)
1980
32.0 mm (1.3 in)
1981
15.5 mm (0.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Leupp, 1914 to 1981. The record is 179 days in 1974, marked on the chart; the median year is 61 days.
Longest dry spell (CDD) at Leupp by year
Year
Longest dry spell (CDD)
1914
36 days
1915
38 days
1916
100 days
1917
109 days
1918
67 days
1919
47 days
1920
53 days
1921
101 days
1922
93 days
1924
45 days
1925
54 days
1926
14 days
1934
31 days
1935
58 days
1936
64 days
1937
41 days
1938
144 days
1939
30 days
1940
34 days
1941
34 days
1942
82 days
1943
48 days
1945
61 days
1946
101 days
1947
100 days
1948
52 days
1949
41 days
1950
112 days
1951
59 days
1952
48 days
1953
54 days
1954
68 days
1955
97 days
1956
63 days
1957
46 days
1958
45 days
1959
52 days
1960
50 days
1961
86 days
1962
56 days
1963
74 days
1964
37 days
1965
37 days
1966
109 days
1967
64 days
1968
63 days
1969
79 days
1970
100 days
1971
52 days
1972
153 days
1973
69 days
1974
179 days
1975
69 days
1976
49 days
1977
65 days
1978
66 days
1979
64 days
1980
61 days
1981
16 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 Leupp falls on 15 May and the median first autumn frost on 9 October, which leaves a median of 145 days between them.
Fitted over all years, the growing season changes by -6.4 days per decade at this station.
Frost dates and growing season at Leupp
Measure
Median, all years
Earliest period
Recent period (1949 to 1979)
Recent against earliest
Fitted trend
Last spring frost
15 May
n/a
23 May
n/a
+2.7 days per decade
First autumn frost
9 October
n/a
8 October
n/a
-3.7 days per decade
Growing days
145 days
n/a
139 days
n/a
-6.4 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, 1915 to 1980
A day with at least 19.9 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 75.3 mm (3.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Leupp: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
19.9 mm (0.8 in)
5 years
29.0 mm (1.1 in)
10 years
36.8 mm (1.4 in)
25 years
49.4 mm (1.9 in)
50 years
61.1 mm (2.4 in)
Longer than the 47 years of record
100 years
75.3 mm (3.0 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 1915 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: 72.6 mm (2.9 in) in 1951; 54.4 mm (2.1 in) in 1971; 51.8 mm (2.0 in) in 1955.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Leupp standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Leupp 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.