Record envelope, standing records and threshold days for San Manuel (USC00027530), Arizona, United States, with 72 years of record.
Key Facts for San Manuel
San Manuel (USC00027530) is a weather station in Arizona, United States at 32.60 latitude and -110.63 longitude, 1,042 m (3,420 ft) above sea level.
The station reports from 1954 to 2025, 72 years of record.
1,464 records set at San Manuel still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
San Manuel set a daily record precipitation of 17.5 mm (0.7 in) on 12 September 2025.
About the Station
Location: Arizona, United States, 32.60 latitude, -110.63 longitude.
Elevation: 1,042 m (3,420 ft).
Period of record: 1954 to 2025, 72 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
18 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 San Manuel. The lines show the 2026 daily maximum and minimum. 18 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at San Manuel, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.8 C (82.0 F)
-11.1 C (12.0 F)
22.8 C (73.0 F)
-2.8 C (27.0 F)
Feb
30.0 C (86.0 F)
-7.2 C (19.0 F)
26.1 C (79.0 F)
3.3 C (37.9 F)
Mar
32.2 C (90.0 F)
-6.7 C (19.9 F)
31.1 C (88.0 F)
2.2 C (36.0 F)
Apr
36.1 C (97.0 F)
-1.7 C (28.9 F)
36.1 C (97.0 F)
3.9 C (39.0 F)
May
40.6 C (105.1 F)
2.8 C (37.0 F)
37.2 C (99.0 F)
8.3 C (46.9 F)
Jun
43.9 C (111.0 F)
8.3 C (46.9 F)
42.8 C (109.0 F)
17.2 C (63.0 F)
Jul
42.8 C (109.0 F)
10.0 C (50.0 F)
42.2 C (108.0 F)
18.3 C (64.9 F)
Aug
43.3 C (109.9 F)
10.6 C (51.1 F)
43.3 C (109.9 F)
20.6 C (69.1 F)
Sep
41.1 C (106.0 F)
5.0 C (41.0 F)
37.2 C (99.0 F)
18.9 C (66.0 F)
Oct
36.1 C (97.0 F)
-3.9 C (25.0 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-8.9 C (16.0 F)
n/a
n/a
Dec
27.2 C (81.0 F)
-9.4 C (15.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at San Manuel still stand. 2020 holds the most, with 69.
Standing records at San Manuel by the year they were set
Year set
Standing records
1954
26
1955
50
1956
44
1957
52
1958
52
1959
62
1960
32
1961
43
1962
56
1963
28
1964
34
1965
55
1966
34
1967
34
1968
25
1969
32
1970
40
1971
61
1972
37
1973
32
1974
35
1975
37
1976
27
1977
31
1978
21
1979
9
1980
1
2011
28
2012
28
2013
23
2014
16
2015
19
2016
31
2017
43
2018
29
2019
19
2020
69
2021
32
2022
24
2023
47
2024
38
2025
28
All-Time Record Progression
2 new records
2 all-time records were set at San Manuel between 29 July 2006 and 20 June 2017. Each dot is a new record.
When San Manuel set new all-time records
Date
Kind
Detail
2006-07-29
Record daily precipitation
Record daily precipitation 79.5 mm (3.1 in)
2017-06-20
Record high minimum temperature
Record high minimum temperature 29.4 C (84.9 F)
Wettest Day of Each Month
Jul: 79.5 mm (3.1 in)
The wettest day on record for each calendar month at San Manuel. The most was 79.5 mm (3.1 in) on 29 July 2006.
Record daily precipitation for each month at San Manuel
Month
Record daily precipitation (mm)
Date
Jan
49.3 mm (1.9 in)
22 January 2010
Feb
34.0 mm (1.3 in)
12 February 1968
Mar
40.1 mm (1.6 in)
12 March 1982
Apr
22.6 mm (0.9 in)
26 April 2015
May
41.1 mm (1.6 in)
1 May 1981
Jun
49.3 mm (1.9 in)
17 June 2000
Jul
79.5 mm (3.1 in)
29 July 2006
Aug
78.5 mm (3.1 in)
9 August 2022
Sep
57.4 mm (2.3 in)
11 September 1977
Oct
59.4 mm (2.3 in)
1 October 1983
Nov
44.2 mm (1.7 in)
11 November 1994
Dec
50.0 mm (2.0 in)
15 December 1967
Period of Record Coverage
1954 to 2025
Complete yearUnder 90 percent of days
42 years of record at San Manuel, 1954 to 2025. 6 years have data for under 90 percent of days and are left out of rankings: 1954, 1978, 1979, 1980, 2011, 2025.
Cooler than the station meanWarmer than the station mean
One stripe for each of 36 complete years at San Manuel, 1955 to 2024. Blue stripes are years cooler than the station's own mean of 18.8 C (65.9 F); red stripes are warmer. The coolest year was 1964, at 17.5 C (63.4 F), and the warmest was 2017, at 20.5 C (68.9 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at San Manuel as warming stripes, 1955 to 2024
Year
Annual mean temperature
Difference from the station mean
1955
18.6 C
-0.24 C
1956
19.1 C
+0.32 C
1957
18.4 C
-0.37 C
1958
17.6 C
-1.18 C
1959
17.7 C
-1.07 C
1960
18.2 C
-0.62 C
1961
17.5 C
-1.32 C
1962
18.8 C
-0.01 C
1963
18.6 C
-0.17 C
1964
17.5 C
-1.36 C
1965
18.1 C
-0.71 C
1966
18.3 C
-0.51 C
1967
18.4 C
-0.39 C
1968
18.2 C
-0.64 C
1969
18.6 C
-0.19 C
1970
18.3 C
-0.51 C
1971
18.0 C
-0.81 C
1972
18.8 C
-0.05 C
1973
18.2 C
-0.60 C
1974
18.5 C
-0.29 C
1975
17.8 C
-1.03 C
1976
18.2 C
-0.66 C
1977
18.8 C
-0.04 C
2012
19.9 C
+1.05 C
2013
19.3 C
+0.44 C
2014
20.0 C
+1.16 C
2015
19.2 C
+0.35 C
2016
19.6 C
+0.74 C
2017
20.5 C
+1.71 C
2018
19.9 C
+1.05 C
2019
18.9 C
+0.13 C
2020
20.5 C
+1.64 C
2021
20.0 C
+1.14 C
2022
19.3 C
+0.47 C
2023
20.0 C
+1.14 C
2024
20.2 C
+1.34 C
The annual mean temperature here has risen by 0.3 C (0.2 to 0.3) per decade over 1955 to 2024. In Fahrenheit: 0.5 F (0.4 to 0.6) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at San Manuel
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.2 to 0.3) per decade
0.5 F (0.4 to 0.6) per decade
1955 to 2024
36
Rise
Mean daily maximum
0.07 C (0.01 to 0.14) per decade
0.13 F (0.01 to 0.25) per decade
1955 to 2024
36
Rise
Mean daily minimum
0.5 C (0.4 to 0.6) per decade
0.9 F (0.7 to 1.0) per decade
1955 to 2024
36
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
1954 to 2025
Yearly extremes at San Manuel: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1970
41.7 C (107.1 F)
42
Coldest night (TNn)
-11.1 C (12.0 F)
1962
-5.2 C (22.6 F)
42
Wettest day (Rx1day)
79.5 mm (3.1 in)
2006
34.0 mm (1.3 in)
72
Wettest five days (Rx5day)
156.3 mm (6.2 in)
1983
51.1 mm (2.0 in)
72
Longest dry spell (CDD)
153 days
1959
68 days
72
Hottest day (TXx)
The hottest day of the year at San Manuel, 1954 to 2025. The record is 43.9 C (111.0 F) in 1970, marked on the chart; the median year is 41.7 C (107.1 F).
Hottest day (TXx) at San Manuel by year
Year
Hottest day (TXx)
1954
41.7 C (107.1 F)
1955
40.6 C (105.1 F)
1956
40.6 C (105.1 F)
1957
41.1 C (106.0 F)
1958
42.2 C (108.0 F)
1959
40.6 C (105.1 F)
1960
42.2 C (108.0 F)
1961
40.6 C (105.1 F)
1962
41.1 C (106.0 F)
1963
40.0 C (104.0 F)
1964
41.1 C (106.0 F)
1965
40.6 C (105.1 F)
1966
40.6 C (105.1 F)
1967
40.6 C (105.1 F)
1968
42.2 C (108.0 F)
1969
42.2 C (108.0 F)
1970
43.9 C (111.0 F)
1971
42.8 C (109.0 F)
1972
42.8 C (109.0 F)
1973
43.3 C (109.9 F)
1974
43.3 C (109.9 F)
1975
40.6 C (105.1 F)
1976
41.7 C (107.1 F)
1977
41.1 C (106.0 F)
1978
41.7 C (107.1 F)
1979
39.4 C (102.9 F)
1980
42.2 C (108.0 F)
1981
n/a
1982
n/a
1983
n/a
1984
n/a
1985
n/a
1986
n/a
1987
n/a
1988
n/a
1989
n/a
1990
n/a
1991
n/a
1992
n/a
1993
n/a
1994
n/a
1995
n/a
1996
n/a
1997
n/a
1998
n/a
1999
n/a
2000
n/a
2001
n/a
2002
n/a
2003
n/a
2004
n/a
2005
n/a
2006
n/a
2007
n/a
2008
n/a
2009
n/a
2010
n/a
2011
42.2 C (108.0 F)
2012
41.1 C (106.0 F)
2013
41.7 C (107.1 F)
2014
40.0 C (104.0 F)
2015
40.6 C (105.1 F)
2016
42.8 C (109.0 F)
2017
43.9 C (111.0 F)
2018
40.6 C (105.1 F)
2019
40.6 C (105.1 F)
2020
42.2 C (108.0 F)
2021
42.8 C (109.0 F)
2022
41.1 C (106.0 F)
2023
42.2 C (108.0 F)
2024
42.2 C (108.0 F)
2025
43.3 C (109.9 F)
Coldest night (TNn)
The coldest night of the year at San Manuel, 1954 to 2025. The record is -11.1 C (12.0 F) in 1962, marked on the chart; the median year is -5.2 C (22.6 F).
Coldest night (TNn) at San Manuel by year
Year
Coldest night (TNn)
1954
-4.4 C (24.1 F)
1955
-6.1 C (21.0 F)
1956
-7.2 C (19.0 F)
1957
-3.3 C (26.1 F)
1958
-8.9 C (16.0 F)
1959
-6.1 C (21.0 F)
1960
-7.8 C (18.0 F)
1961
-4.4 C (24.1 F)
1962
-11.1 C (12.0 F)
1963
-8.9 C (16.0 F)
1964
-6.7 C (19.9 F)
1965
-6.7 C (19.9 F)
1966
-7.2 C (19.0 F)
1967
-8.3 C (17.1 F)
1968
-9.4 C (15.1 F)
1969
-6.7 C (19.9 F)
1970
-6.7 C (19.9 F)
1971
-11.1 C (12.0 F)
1972
-7.8 C (18.0 F)
1973
-4.4 C (24.1 F)
1974
-8.9 C (16.0 F)
1975
-6.1 C (21.0 F)
1976
-7.2 C (19.0 F)
1977
-6.7 C (19.9 F)
1978
-3.3 C (26.1 F)
1979
-4.4 C (24.1 F)
1980
10.6 C (51.1 F)
1981
n/a
1982
n/a
1983
n/a
1984
n/a
1985
n/a
1986
n/a
1987
n/a
1988
n/a
1989
n/a
1990
n/a
1991
n/a
1992
n/a
1993
n/a
1994
n/a
1995
n/a
1996
n/a
1997
n/a
1998
n/a
1999
n/a
2000
n/a
2001
n/a
2002
n/a
2003
n/a
2004
n/a
2005
n/a
2006
n/a
2007
n/a
2008
n/a
2009
n/a
2010
n/a
2011
-3.9 C (25.0 F)
2012
-2.2 C (28.0 F)
2013
-6.1 C (21.0 F)
2014
-2.8 C (27.0 F)
2015
-3.9 C (25.0 F)
2016
-3.9 C (25.0 F)
2017
-3.3 C (26.1 F)
2018
-3.3 C (26.1 F)
2019
-4.4 C (24.1 F)
2020
-3.3 C (26.1 F)
2021
-1.1 C (30.0 F)
2022
-3.3 C (26.1 F)
2023
-3.9 C (25.0 F)
2024
-3.9 C (25.0 F)
2025
-2.8 C (27.0 F)
Wettest day (Rx1day)
The wettest day of the year at San Manuel, 1954 to 2025. The record is 79.5 mm (3.1 in) in 2006, marked on the chart; the median year is 34.0 mm (1.3 in).
Wettest day (Rx1day) at San Manuel by year
Year
Wettest day (Rx1day)
1954
48.3 mm (1.9 in)
1955
27.9 mm (1.1 in)
1956
26.9 mm (1.1 in)
1957
30.5 mm (1.2 in)
1958
36.8 mm (1.4 in)
1959
48.5 mm (1.9 in)
1960
21.6 mm (0.9 in)
1961
24.9 mm (1.0 in)
1962
41.9 mm (1.6 in)
1963
66.3 mm (2.6 in)
1964
34.5 mm (1.4 in)
1965
35.1 mm (1.4 in)
1966
35.1 mm (1.4 in)
1967
66.0 mm (2.6 in)
1968
34.0 mm (1.3 in)
1969
30.0 mm (1.2 in)
1970
36.1 mm (1.4 in)
1971
43.2 mm (1.7 in)
1972
22.9 mm (0.9 in)
1973
34.5 mm (1.4 in)
1974
39.6 mm (1.6 in)
1975
20.8 mm (0.8 in)
1976
24.4 mm (1.0 in)
1977
57.4 mm (2.3 in)
1978
46.0 mm (1.8 in)
1979
25.9 mm (1.0 in)
1980
24.1 mm (0.9 in)
1981
57.7 mm (2.3 in)
1982
41.1 mm (1.6 in)
1983
59.4 mm (2.3 in)
1984
31.2 mm (1.2 in)
1985
32.3 mm (1.3 in)
1986
31.2 mm (1.2 in)
1987
30.0 mm (1.2 in)
1988
27.7 mm (1.1 in)
1989
47.0 mm (1.9 in)
1990
49.3 mm (1.9 in)
1991
18.5 mm (0.7 in)
1992
33.8 mm (1.3 in)
1993
28.2 mm (1.1 in)
1994
51.6 mm (2.0 in)
1995
30.7 mm (1.2 in)
1996
29.0 mm (1.1 in)
1997
40.9 mm (1.6 in)
1998
34.5 mm (1.4 in)
1999
27.7 mm (1.1 in)
2000
49.3 mm (1.9 in)
2001
26.9 mm (1.1 in)
2002
27.2 mm (1.1 in)
2003
24.1 mm (0.9 in)
2004
24.1 mm (0.9 in)
2005
35.1 mm (1.4 in)
2006
79.5 mm (3.1 in)
2007
29.7 mm (1.2 in)
2008
37.6 mm (1.5 in)
2009
40.9 mm (1.6 in)
2010
49.3 mm (1.9 in)
2011
52.8 mm (2.1 in)
2012
28.2 mm (1.1 in)
2013
35.6 mm (1.4 in)
2014
30.5 mm (1.2 in)
2015
49.8 mm (2.0 in)
2016
37.8 mm (1.5 in)
2017
31.8 mm (1.3 in)
2018
34.0 mm (1.3 in)
2019
31.0 mm (1.2 in)
2020
16.0 mm (0.6 in)
2021
36.6 mm (1.4 in)
2022
78.5 mm (3.1 in)
2023
19.1 mm (0.8 in)
2024
32.5 mm (1.3 in)
2025
20.3 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at San Manuel, 1954 to 2025. The record is 156.3 mm (6.2 in) in 1983, marked on the chart; the median year is 51.1 mm (2.0 in).
Wettest five days (Rx5day) at San Manuel by year
Year
Wettest five days (Rx5day)
1954
82.0 mm (3.2 in)
1955
56.3 mm (2.2 in)
1956
35.8 mm (1.4 in)
1957
54.4 mm (2.1 in)
1958
40.1 mm (1.6 in)
1959
73.9 mm (2.9 in)
1960
30.8 mm (1.2 in)
1961
57.1 mm (2.2 in)
1962
46.7 mm (1.8 in)
1963
127.8 mm (5.0 in)
1964
88.4 mm (3.5 in)
1965
71.4 mm (2.8 in)
1966
58.0 mm (2.3 in)
1967
95.5 mm (3.8 in)
1968
59.6 mm (2.3 in)
1969
46.0 mm (1.8 in)
1970
52.1 mm (2.1 in)
1971
78.3 mm (3.1 in)
1972
49.3 mm (1.9 in)
1973
56.3 mm (2.2 in)
1974
49.2 mm (1.9 in)
1975
37.6 mm (1.5 in)
1976
41.2 mm (1.6 in)
1977
58.2 mm (2.3 in)
1978
65.1 mm (2.6 in)
1979
45.6 mm (1.8 in)
1980
47.0 mm (1.9 in)
1981
83.1 mm (3.3 in)
1982
57.6 mm (2.3 in)
1983
156.3 mm (6.2 in)
1984
36.0 mm (1.4 in)
1985
38.7 mm (1.5 in)
1986
43.4 mm (1.7 in)
1987
43.9 mm (1.7 in)
1988
33.8 mm (1.3 in)
1989
77.7 mm (3.1 in)
1990
59.0 mm (2.3 in)
1991
33.0 mm (1.3 in)
1992
53.9 mm (2.1 in)
1993
68.6 mm (2.7 in)
1994
53.1 mm (2.1 in)
1995
39.4 mm (1.6 in)
1996
54.3 mm (2.1 in)
1997
52.8 mm (2.1 in)
1998
50.0 mm (2.0 in)
1999
46.5 mm (1.8 in)
2000
69.9 mm (2.8 in)
2001
36.8 mm (1.4 in)
2002
38.4 mm (1.5 in)
2003
41.1 mm (1.6 in)
2004
31.5 mm (1.2 in)
2005
37.4 mm (1.5 in)
2006
144.6 mm (5.7 in)
2007
37.6 mm (1.5 in)
2008
46.8 mm (1.8 in)
2009
60.0 mm (2.4 in)
2010
82.5 mm (3.2 in)
2011
53.1 mm (2.1 in)
2012
63.5 mm (2.5 in)
2013
44.4 mm (1.7 in)
2014
45.5 mm (1.8 in)
2015
54.4 mm (2.1 in)
2016
43.7 mm (1.7 in)
2017
41.8 mm (1.6 in)
2018
53.9 mm (2.1 in)
2019
38.1 mm (1.5 in)
2020
20.8 mm (0.8 in)
2021
57.7 mm (2.3 in)
2022
96.1 mm (3.8 in)
2023
32.5 mm (1.3 in)
2024
40.9 mm (1.6 in)
2025
30.7 mm (1.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at San Manuel, 1954 to 2025. The record is 153 days in 1959, marked on the chart; the median year is 68 days.
Longest dry spell (CDD) at San Manuel by year
Year
Longest dry spell (CDD)
1954
76 days
1955
83 days
1956
76 days
1957
47 days
1958
64 days
1959
153 days
1960
64 days
1961
95 days
1962
96 days
1963
85 days
1964
94 days
1965
59 days
1966
85 days
1967
49 days
1968
92 days
1969
67 days
1970
72 days
1971
92 days
1972
150 days
1973
69 days
1974
96 days
1975
74 days
1976
54 days
1977
64 days
1978
51 days
1979
53 days
1980
56 days
1981
38 days
1982
52 days
1983
76 days
1984
84 days
1985
75 days
1986
72 days
1987
55 days
1988
67 days
1989
49 days
1990
37 days
1991
76 days
1992
85 days
1993
57 days
1994
31 days
1995
69 days
1996
68 days
1997
43 days
1998
68 days
1999
103 days
2000
65 days
2001
30 days
2002
122 days
2003
44 days
2004
90 days
2005
46 days
2006
68 days
2007
50 days
2008
42 days
2009
39 days
2010
68 days
2011
50 days
2012
73 days
2013
66 days
2014
67 days
2015
37 days
2016
42 days
2017
87 days
2018
62 days
2019
53 days
2020
101 days
2021
70 days
2022
80 days
2023
59 days
2024
74 days
2025
43 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
33 years with a frost
Across 33 years with a frost, the median last spring frost at San Manuel falls on 10 March and the median first autumn frost on 27 November, which leaves a median of 263 days between them.
Fitted over all years, the growing season changes by +10.2 days per decade at this station.
Frost dates and growing season at San Manuel
Measure
Median, all years
Earliest period
Recent period (1958 to 2022)
Recent against earliest
Fitted trend
Last spring frost
10 March
n/a
10 March
n/a
-6.7 days per decade
First autumn frost
27 November
n/a
29 November
n/a
+3.4 days per decade
Growing days
263 days
n/a
266 days
n/a
+10.2 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
66 years, 1955 to 2024
A day with at least 33.8 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 87.1 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at San Manuel: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
33.8 mm (1.3 in)
5 years
45.6 mm (1.8 in)
10 years
54.3 mm (2.1 in)
25 years
66.5 mm (2.6 in)
50 years
76.4 mm (3.0 in)
100 years
87.1 mm (3.4 in)
Longer than the 66 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, 66 years of values from 1955 to 2024.
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: 79.5 mm (3.1 in) in 2006; 78.5 mm (3.1 in) in 2022; 66.3 mm (2.6 in) in 1963.
Climate Twins
1976 to 2024 against 1961 to 1990
Over 1976 to 2024, San Manuel had a mean temperature of 19.6 C (67.3 F) and 315.7 mm (12.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Bavispe (Smn) (Mexico, 287 km away), Colonia Morelos (Mexico, 239 km away) and Candelaria (United States, 627 km away).
Climate twins of San Manuel: stations whose 1961 to 1990 climate is closest to its 1976 to 2024 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 San Manuel standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Manuel 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.