Record envelope, standing records and threshold days for Clayton 9 SSE (USC00291881), New Mexico, United States, with 53 years of record.
Key Facts for Clayton 9 SSE
Clayton 9 SSE (USC00291881) is a weather station in New Mexico, United States at 36.33 latitude and -103.10 longitude, 1,495 m (4,905 ft) above sea level.
The station reports from 1907 to 1959, 53 years of record.
1,464 records set at Clayton 9 SSE still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Clayton 9 SSE set a daily record precipitation of 10.4 mm (0.4 in) on 27 December 1959.
About the Station
Location: New Mexico, United States, 36.33 latitude, -103.10 longitude.
Elevation: 1,495 m (4,905 ft).
Period of record: 1907 to 1959, 53 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Clayton 9 SSE. 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 Clayton 9 SSE, 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)
-30.6 C (-23.1 F)
n/a
n/a
Feb
26.7 C (80.1 F)
-30.0 C (-22.0 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-13.9 C (7.0 F)
n/a
n/a
May
36.1 C (97.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jun
40.0 C (104.0 F)
3.9 C (39.0 F)
n/a
n/a
Jul
41.1 C (106.0 F)
6.1 C (43.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
7.2 C (45.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Dec
27.8 C (82.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Clayton 9 SSE still stand. 1936 holds the most, with 68.
Standing records at Clayton 9 SSE by the year they were set
Year set
Standing records
1907
21
1926
17
1927
64
1928
48
1929
40
1930
45
1931
46
1932
44
1933
46
1934
59
1935
29
1936
68
1937
52
1938
40
1939
59
1940
52
1941
47
1942
43
1943
57
1944
21
1945
44
1946
47
1947
34
1948
36
1949
26
1950
44
1951
37
1952
46
1953
42
1954
34
1955
47
1956
40
1957
25
1958
30
1959
34
All-Time Record Progression
1 new records
1 all-time records were set at Clayton 9 SSE between 4 January 1959 and 4 January 1959. Each dot is a new record.
When Clayton 9 SSE set new all-time records
Date
Kind
Detail
1959-01-04
Record low minimum temperature
Record low minimum temperature -30.6 C (-23.1 F)
Wettest Day of Each Month
May: 143.8 mm (5.7 in)
The wettest day on record for each calendar month at Clayton 9 SSE. The most was 143.8 mm (5.7 in) on 28 May 1946.
Record daily precipitation for each month at Clayton 9 SSE
Month
Record daily precipitation (mm)
Date
Jan
17.8 mm (0.7 in)
7 January 1939
Feb
16.8 mm (0.7 in)
24 February 1951
Mar
26.7 mm (1.1 in)
24 March 1941
Apr
42.7 mm (1.7 in)
17 April 1942
May
143.8 mm (5.7 in)
28 May 1946
Jun
63.5 mm (2.5 in)
24 June 1932
Jul
64.8 mm (2.6 in)
23 July 1951
Aug
77.2 mm (3.0 in)
19 August 1941
Sep
67.3 mm (2.6 in)
21 September 1941
Oct
63.5 mm (2.5 in)
11 October 1930
Nov
32.0 mm (1.3 in)
1 November 1948
Dec
25.1 mm (1.0 in)
3 December 1947
Period of Record Coverage
1907 to 1959
Complete yearUnder 90 percent of days
35 years of record at Clayton 9 SSE, 1907 to 1959. 3 years have data for under 90 percent of days and are left out of rankings: 1907, 1926, 1930.
Cooler than the station meanWarmer than the station mean
One stripe for each of 30 complete years at Clayton 9 SSE, 1928 to 1959. Blue stripes are years cooler than the station's own mean of 12.0 C (53.6 F); red stripes are warmer. The coolest year was 1936, at 10.4 C (50.7 F), and the warmest was 1954, at 13.4 C (56.1 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Clayton 9 SSE as warming stripes, 1928 to 1959
Year
Annual mean temperature
Difference from the station mean
1928
11.4 C
-0.61 C
1929
10.6 C
-1.44 C
1931
11.8 C
-0.20 C
1932
11.6 C
-0.41 C
1933
12.7 C
+0.69 C
1935
12.3 C
+0.28 C
1936
10.4 C
-1.62 C
1937
11.6 C
-0.46 C
1938
12.6 C
+0.63 C
1939
12.7 C
+0.70 C
1940
12.1 C
+0.07 C
1941
11.9 C
-0.07 C
1942
11.7 C
-0.30 C
1943
12.6 C
+0.59 C
1944
11.6 C
-0.45 C
1945
12.3 C
+0.32 C
1946
13.0 C
+0.98 C
1947
12.0 C
-0.06 C
1948
11.9 C
-0.10 C
1949
11.7 C
-0.27 C
1950
12.4 C
+0.40 C
1951
11.4 C
-0.66 C
1952
12.0 C
-0.03 C
1953
12.2 C
+0.20 C
1954
13.4 C
+1.39 C
1955
12.1 C
+0.04 C
1956
12.5 C
+0.47 C
1957
12.2 C
+0.17 C
1958
12.0 C
-0.05 C
1959
11.7 C
-0.34 C
The fitted trend in annual mean temperature here over 1928 to 1959 is 0.22 C (-0.03 to 0.47) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.4 F (-0.1 to 0.9) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Clayton 9 SSE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.22 C (-0.03 to 0.47) per decade
0.4 F (-0.1 to 0.9) per decade
1928 to 1959
30
Not clearly different from zero
Mean daily maximum
0.6 C (0.2 to 1.1) per decade
1.1 F (0.3 to 1.9) per decade
1928 to 1959
30
Rise
Mean daily minimum
-0.2 C (-0.5 to 0.2) per decade
-0.3 F (-1.0 to 0.3) per decade
1928 to 1959
30
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
1907 to 1959
Yearly extremes at Clayton 9 SSE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
1934
37.8 C (100.0 F)
35
Coldest night (TNn)
-30.6 C (-23.1 F)
1959
-20.6 C (-5.1 F)
35
Wettest day (Rx1day)
143.8 mm (5.7 in)
1946
42.4 mm (1.7 in)
35
Wettest five days (Rx5day)
150.9 mm (5.9 in)
1946
67.8 mm (2.7 in)
35
Longest dry spell (CDD)
102 days
1950
55 days
35
Hottest day (TXx)
The hottest day of the year at Clayton 9 SSE, 1907 to 1959. The record is 41.1 C (106.0 F) in 1934, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Clayton 9 SSE by year
Year
Hottest day (TXx)
1907
33.3 C (91.9 F)
1926
34.4 C (93.9 F)
1927
37.8 C (100.0 F)
1928
37.8 C (100.0 F)
1929
37.2 C (99.0 F)
1930
39.4 C (102.9 F)
1931
37.8 C (100.0 F)
1932
36.7 C (98.1 F)
1933
40.6 C (105.1 F)
1934
41.1 C (106.0 F)
1935
37.8 C (100.0 F)
1936
38.9 C (102.0 F)
1937
38.9 C (102.0 F)
1938
37.8 C (100.0 F)
1939
39.4 C (102.9 F)
1940
39.4 C (102.9 F)
1941
35.0 C (95.0 F)
1942
36.1 C (97.0 F)
1943
38.9 C (102.0 F)
1944
38.3 C (100.9 F)
1945
36.7 C (98.1 F)
1946
38.3 C (100.9 F)
1947
37.2 C (99.0 F)
1948
37.8 C (100.0 F)
1949
35.0 C (95.0 F)
1950
36.1 C (97.0 F)
1951
37.2 C (99.0 F)
1952
39.4 C (102.9 F)
1953
40.0 C (104.0 F)
1954
37.2 C (99.0 F)
1955
36.7 C (98.1 F)
1956
37.8 C (100.0 F)
1957
40.6 C (105.1 F)
1958
36.7 C (98.1 F)
1959
36.7 C (98.1 F)
Coldest night (TNn)
The coldest night of the year at Clayton 9 SSE, 1907 to 1959. The record is -30.6 C (-23.1 F) in 1959, marked on the chart; the median year is -20.6 C (-5.1 F).
Coldest night (TNn) at Clayton 9 SSE by year
Year
Coldest night (TNn)
1907
-2.2 C (28.0 F)
1926
-14.4 C (6.1 F)
1927
-20.0 C (-4.0 F)
1928
-22.2 C (-8.0 F)
1929
-22.8 C (-9.0 F)
1930
-25.0 C (-13.0 F)
1931
-15.6 C (3.9 F)
1932
-23.9 C (-11.0 F)
1933
-26.7 C (-16.1 F)
1934
-15.6 C (3.9 F)
1935
-15.6 C (3.9 F)
1936
-21.1 C (-6.0 F)
1937
-23.9 C (-11.0 F)
1938
-17.8 C (0.0 F)
1939
-21.1 C (-6.0 F)
1940
-17.8 C (0.0 F)
1941
-17.2 C (1.0 F)
1942
-21.1 C (-6.0 F)
1943
-18.9 C (-2.0 F)
1944
-17.2 C (1.0 F)
1945
-18.3 C (-0.9 F)
1946
-18.9 C (-2.0 F)
1947
-23.3 C (-9.9 F)
1948
-25.6 C (-14.1 F)
1949
-20.6 C (-5.1 F)
1950
-23.9 C (-11.0 F)
1951
-30.0 C (-22.0 F)
1952
-21.1 C (-6.0 F)
1953
-20.0 C (-4.0 F)
1954
-18.9 C (-2.0 F)
1955
-22.2 C (-8.0 F)
1956
-17.8 C (0.0 F)
1957
-21.1 C (-6.0 F)
1958
-18.9 C (-2.0 F)
1959
-30.6 C (-23.1 F)
Wettest day (Rx1day)
The wettest day of the year at Clayton 9 SSE, 1907 to 1959. The record is 143.8 mm (5.7 in) in 1946, marked on the chart; the median year is 42.4 mm (1.7 in).
Wettest day (Rx1day) at Clayton 9 SSE by year
Year
Wettest day (Rx1day)
1907
63.5 mm (2.5 in)
1926
10.2 mm (0.4 in)
1927
30.5 mm (1.2 in)
1928
57.2 mm (2.3 in)
1929
50.0 mm (2.0 in)
1930
63.5 mm (2.5 in)
1931
24.1 mm (0.9 in)
1932
63.5 mm (2.5 in)
1933
35.6 mm (1.4 in)
1934
65.5 mm (2.6 in)
1935
56.1 mm (2.2 in)
1936
30.7 mm (1.2 in)
1937
77.5 mm (3.1 in)
1938
34.3 mm (1.4 in)
1939
33.3 mm (1.3 in)
1940
22.4 mm (0.9 in)
1941
77.2 mm (3.0 in)
1942
62.7 mm (2.5 in)
1943
41.9 mm (1.6 in)
1944
63.5 mm (2.5 in)
1945
32.3 mm (1.3 in)
1946
143.8 mm (5.7 in)
1947
42.4 mm (1.7 in)
1948
58.4 mm (2.3 in)
1949
108.2 mm (4.3 in)
1950
37.1 mm (1.5 in)
1951
64.8 mm (2.6 in)
1952
36.1 mm (1.4 in)
1953
31.8 mm (1.3 in)
1954
73.2 mm (2.9 in)
1955
38.9 mm (1.5 in)
1956
46.2 mm (1.8 in)
1957
27.4 mm (1.1 in)
1958
25.7 mm (1.0 in)
1959
26.9 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Clayton 9 SSE, 1907 to 1959. The record is 150.9 mm (5.9 in) in 1946, marked on the chart; the median year is 67.8 mm (2.7 in).
Wettest five days (Rx5day) at Clayton 9 SSE by year
Year
Wettest five days (Rx5day)
1907
127.0 mm (5.0 in)
1926
10.2 mm (0.4 in)
1927
43.6 mm (1.7 in)
1928
88.9 mm (3.5 in)
1929
81.8 mm (3.2 in)
1930
144.1 mm (5.7 in)
1931
46.3 mm (1.8 in)
1932
81.8 mm (3.2 in)
1933
45.8 mm (1.8 in)
1934
81.0 mm (3.2 in)
1935
57.4 mm (2.3 in)
1936
45.0 mm (1.8 in)
1937
131.1 mm (5.2 in)
1938
81.6 mm (3.2 in)
1939
43.2 mm (1.7 in)
1940
24.7 mm (1.0 in)
1941
122.9 mm (4.8 in)
1942
113.0 mm (4.4 in)
1943
44.9 mm (1.8 in)
1944
94.9 mm (3.7 in)
1945
67.1 mm (2.6 in)
1946
150.9 mm (5.9 in)
1947
95.7 mm (3.8 in)
1948
69.2 mm (2.7 in)
1949
108.2 mm (4.3 in)
1950
81.6 mm (3.2 in)
1951
64.8 mm (2.6 in)
1952
52.9 mm (2.1 in)
1953
65.4 mm (2.6 in)
1954
86.6 mm (3.4 in)
1955
67.8 mm (2.7 in)
1956
54.3 mm (2.1 in)
1957
31.5 mm (1.2 in)
1958
64.9 mm (2.6 in)
1959
54.4 mm (2.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Clayton 9 SSE, 1907 to 1959. The record is 102 days in 1950, marked on the chart; the median year is 55 days.
Longest dry spell (CDD) at Clayton 9 SSE by year
Year
Longest dry spell (CDD)
1907
24 days
1926
38 days
1927
42 days
1928
35 days
1929
40 days
1930
62 days
1931
26 days
1932
55 days
1933
57 days
1934
75 days
1935
59 days
1936
79 days
1937
56 days
1938
71 days
1939
49 days
1940
48 days
1941
61 days
1942
55 days
1943
79 days
1944
31 days
1945
69 days
1946
55 days
1947
36 days
1948
57 days
1949
51 days
1950
102 days
1951
56 days
1952
47 days
1953
40 days
1954
81 days
1955
49 days
1956
59 days
1957
56 days
1958
30 days
1959
58 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
30 years with a frost
Across 30 years with a frost, the median last spring frost at Clayton 9 SSE falls on 3 May and the median first autumn frost on 13 October, which leaves a median of 166 days between them.
Fitted over all years, the growing season changes by +0.4 days per decade at this station.
Frost dates and growing season at Clayton 9 SSE
Measure
Median, all years
Earliest period
Recent period (1928 to 1959)
Recent against earliest
Fitted trend
Last spring frost
3 May
n/a
3 May
n/a
-0.4 days per decade
First autumn frost
13 October
n/a
13 October
n/a
0.0 days per decade
Growing days
166 days
n/a
166 days
n/a
+0.4 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
32 years, 1927 to 1959
A day with at least 44.9 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 151.0 mm (5.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Clayton 9 SSE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
44.9 mm (1.8 in)
5 years
66.7 mm (2.6 in)
10 years
83.4 mm (3.3 in)
25 years
107.7 mm (4.2 in)
50 years
128.2 mm (5.0 in)
Longer than the 32 years of record
100 years
151.0 mm (5.9 in)
Longer than the 32 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, 32 years of values from 1927 to 1959.
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: 143.8 mm (5.7 in) in 1946; 108.2 mm (4.3 in) in 1949; 77.5 mm (3.1 in) in 1937.
Download the Data
Data for Clayton 9 SSE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Clayton 9 SSE 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.