Record envelope, standing records and threshold days for San Mateo (USC00297918), New Mexico, United States, with 71 years of record.
Key Facts for San Mateo
San Mateo (USC00297918) is a weather station in New Mexico, United States at 35.33 latitude and -107.65 longitude, 2,207 m (7,242 ft) above sea level.
The station reports from 1918 to 1988, 71 years of record.
1,464 records set at San Mateo still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
San Mateo set a daily record precipitation of 1.3 mm (0.05 in) on 29 February 1988.
About the Station
Location: New Mexico, United States, 35.33 latitude, -107.65 longitude.
Elevation: 2,207 m (7,242 ft).
Period of record: 1918 to 1988, 71 years.
Eligible elements: prcp.
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 San Mateo. 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 San Mateo, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-22.8 C (-9.0 F)
n/a
n/a
Mar
23.3 C (73.9 F)
-17.8 C (0.0 F)
n/a
n/a
Apr
26.1 C (79.0 F)
-13.3 C (8.1 F)
n/a
n/a
May
32.2 C (90.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
0.0 C (32.0 F)
n/a
n/a
Jul
35.6 C (96.1 F)
7.2 C (45.0 F)
n/a
n/a
Aug
33.9 C (93.0 F)
4.4 C (39.9 F)
n/a
n/a
Sep
31.1 C (88.0 F)
-3.9 C (25.0 F)
n/a
n/a
Oct
27.2 C (81.0 F)
-12.8 C (9.0 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Dec
20.0 C (68.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at San Mateo still stand. 1971 holds the most, with 101.
Standing records at San Mateo by the year they were set
Year set
Standing records
1918
48
1919
46
1966
49
1967
79
1968
63
1969
74
1970
67
1971
101
1972
74
1973
59
1974
64
1975
56
1976
63
1977
72
1978
57
1979
50
1980
56
1981
63
1982
44
1983
52
1984
44
1985
62
1986
68
1987
43
1988
10
Wettest Day of Each Month
Aug: 57.9 mm (2.3 in)
The wettest day on record for each calendar month at San Mateo. The most was 57.9 mm (2.3 in) on 5 August 1948.
Record daily precipitation for each month at San Mateo
Month
Record daily precipitation (mm)
Date
Jan
37.6 mm (1.5 in)
18 January 1988
Feb
10.2 mm (0.4 in)
8 February 1940
Mar
19.1 mm (0.8 in)
27 March 1984
Apr
28.4 mm (1.1 in)
29 April 1985
May
31.8 mm (1.3 in)
21 May 1941
Jun
23.1 mm (0.9 in)
22 June 1918
Jul
36.3 mm (1.4 in)
17 July 1967
Aug
57.9 mm (2.3 in)
5 August 1948
Sep
35.6 mm (1.4 in)
7 September 1919
Oct
25.9 mm (1.0 in)
12 October 1986
Nov
50.8 mm (2.0 in)
7 November 1986
Dec
30.5 mm (1.2 in)
13 December 1967
Period of Record Coverage
1918 to 1988
Complete yearUnder 90 percent of days
25 years of record at San Mateo, 1918 to 1988. 7 years have data for under 90 percent of days and are left out of rankings: 1918, 1919, 1966, 1968, 1969, 1982, 1988.
Cooler than the station meanWarmer than the station mean
One stripe for each of 13 complete years at San Mateo, 1967 to 1987. Blue stripes are years cooler than the station's own mean of 9.2 C (48.6 F); red stripes are warmer. The coolest year was 1983, at 7.8 C (46.1 F), and the warmest was 1981, at 10.1 C (50.1 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at San Mateo as warming stripes, 1967 to 1987
Year
Annual mean temperature
Difference from the station mean
1967
9.1 C
-0.10 C
1972
9.8 C
+0.59 C
1974
9.7 C
+0.52 C
1976
8.3 C
-0.94 C
1977
9.1 C
-0.07 C
1978
9.3 C
+0.14 C
1980
9.3 C
+0.08 C
1981
10.1 C
+0.87 C
1983
7.8 C
-1.36 C
1984
8.8 C
-0.39 C
1985
8.8 C
-0.37 C
1986
10.1 C
+0.85 C
1987
9.4 C
+0.20 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1918 to 1988
Yearly extremes at San Mateo: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.7 C (98.1 F)
1973
32.8 C (91.0 F)
25
Coldest night (TNn)
-37.2 C (-35.0 F)
1971
-19.4 C (-2.9 F)
25
Wettest day (Rx1day)
57.9 mm (2.3 in)
1948
22.9 mm (0.9 in)
38
Wettest five days (Rx5day)
79.5 mm (3.1 in)
1948
37.0 mm (1.5 in)
38
Longest dry spell (CDD)
150 days
1972
53 days
38
Hottest day (TXx)
The hottest day of the year at San Mateo, 1918 to 1988. The record is 36.7 C (98.1 F) in 1973, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at San Mateo by year
Year
Hottest day (TXx)
1918
32.2 C (90.0 F)
1919
26.1 C (79.0 F)
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1966
33.3 C (91.9 F)
1967
31.7 C (89.1 F)
1968
32.2 C (90.0 F)
1969
33.3 C (91.9 F)
1970
33.3 C (91.9 F)
1971
33.3 C (91.9 F)
1972
33.3 C (91.9 F)
1973
36.7 C (98.1 F)
1974
35.0 C (95.0 F)
1975
32.8 C (91.0 F)
1976
32.8 C (91.0 F)
1977
35.6 C (96.1 F)
1978
32.2 C (90.0 F)
1979
35.6 C (96.1 F)
1980
35.0 C (95.0 F)
1981
35.0 C (95.0 F)
1982
32.2 C (90.0 F)
1983
31.1 C (88.0 F)
1984
31.1 C (88.0 F)
1985
34.4 C (93.9 F)
1986
31.7 C (89.1 F)
1987
31.7 C (89.1 F)
1988
16.1 C (61.0 F)
Coldest night (TNn)
The coldest night of the year at San Mateo, 1918 to 1988. The record is -37.2 C (-35.0 F) in 1971, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at San Mateo by year
Year
Coldest night (TNn)
1918
-9.4 C (15.1 F)
1919
-29.4 C (-20.9 F)
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1966
-22.8 C (-9.0 F)
1967
-19.4 C (-2.9 F)
1968
-19.4 C (-2.9 F)
1969
-15.6 C (3.9 F)
1970
-16.7 C (1.9 F)
1971
-37.2 C (-35.0 F)
1972
-16.7 C (1.9 F)
1973
-15.6 C (3.9 F)
1974
-17.8 C (0.0 F)
1975
-17.2 C (1.0 F)
1976
-23.3 C (-9.9 F)
1977
-23.9 C (-11.0 F)
1978
-24.4 C (-11.9 F)
1979
-22.2 C (-8.0 F)
1980
-22.8 C (-9.0 F)
1981
-15.6 C (3.9 F)
1982
-22.2 C (-8.0 F)
1983
-17.8 C (0.0 F)
1984
-25.0 C (-13.0 F)
1985
-20.6 C (-5.1 F)
1986
-19.4 C (-2.9 F)
1987
-17.8 C (0.0 F)
1988
-17.2 C (1.0 F)
Wettest day (Rx1day)
The wettest day of the year at San Mateo, 1918 to 1988. The record is 57.9 mm (2.3 in) in 1948, marked on the chart; the median year is 22.9 mm (0.9 in).
Wettest day (Rx1day) at San Mateo by year
Year
Wettest day (Rx1day)
1918
23.1 mm (0.9 in)
1919
35.6 mm (1.4 in)
1939
19.1 mm (0.8 in)
1940
18.5 mm (0.7 in)
1941
31.8 mm (1.3 in)
1942
30.7 mm (1.2 in)
1943
15.5 mm (0.6 in)
1944
20.8 mm (0.8 in)
1945
18.0 mm (0.7 in)
1946
21.6 mm (0.9 in)
1947
10.4 mm (0.4 in)
1948
57.9 mm (2.3 in)
1949
15.7 mm (0.6 in)
1950
6.9 mm (0.27 in)
1951
20.1 mm (0.8 in)
1966
30.7 mm (1.2 in)
1967
36.3 mm (1.4 in)
1968
19.1 mm (0.8 in)
1969
21.6 mm (0.9 in)
1970
12.7 mm (0.5 in)
1971
33.0 mm (1.3 in)
1972
22.9 mm (0.9 in)
1973
22.9 mm (0.9 in)
1974
21.6 mm (0.9 in)
1975
34.3 mm (1.4 in)
1976
30.5 mm (1.2 in)
1977
31.5 mm (1.2 in)
1978
26.7 mm (1.1 in)
1979
24.1 mm (0.9 in)
1980
19.1 mm (0.8 in)
1981
29.5 mm (1.2 in)
1982
12.2 mm (0.5 in)
1983
35.6 mm (1.4 in)
1984
21.3 mm (0.8 in)
1985
28.4 mm (1.1 in)
1986
50.8 mm (2.0 in)
1987
19.6 mm (0.8 in)
1988
37.6 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at San Mateo, 1918 to 1988. The record is 79.5 mm (3.1 in) in 1948, marked on the chart; the median year is 37.0 mm (1.5 in).
Wettest five days (Rx5day) at San Mateo by year
Year
Wettest five days (Rx5day)
1918
42.5 mm (1.7 in)
1919
35.6 mm (1.4 in)
1939
19.1 mm (0.8 in)
1940
26.7 mm (1.1 in)
1941
46.8 mm (1.8 in)
1942
34.5 mm (1.4 in)
1943
29.5 mm (1.2 in)
1944
23.4 mm (0.9 in)
1945
29.2 mm (1.1 in)
1946
33.0 mm (1.3 in)
1947
14.0 mm (0.6 in)
1948
79.5 mm (3.1 in)
1949
22.5 mm (0.9 in)
1950
14.8 mm (0.6 in)
1951
29.2 mm (1.1 in)
1966
37.8 mm (1.5 in)
1967
73.9 mm (2.9 in)
1968
25.1 mm (1.0 in)
1969
41.5 mm (1.6 in)
1970
25.1 mm (1.0 in)
1971
33.8 mm (1.3 in)
1972
41.0 mm (1.6 in)
1973
41.1 mm (1.6 in)
1974
43.2 mm (1.7 in)
1975
42.9 mm (1.7 in)
1976
36.3 mm (1.4 in)
1977
54.7 mm (2.2 in)
1978
32.5 mm (1.3 in)
1979
39.4 mm (1.6 in)
1980
38.9 mm (1.5 in)
1981
37.6 mm (1.5 in)
1982
20.8 mm (0.8 in)
1983
51.1 mm (2.0 in)
1984
23.6 mm (0.9 in)
1985
41.1 mm (1.6 in)
1986
58.4 mm (2.3 in)
1987
38.1 mm (1.5 in)
1988
63.3 mm (2.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at San Mateo, 1918 to 1988. The record is 150 days in 1972, marked on the chart; the median year is 53 days.
Longest dry spell (CDD) at San Mateo by year
Year
Longest dry spell (CDD)
1918
46 days
1919
56 days
1939
31 days
1940
29 days
1941
16 days
1942
64 days
1943
31 days
1944
31 days
1945
50 days
1946
39 days
1947
43 days
1948
44 days
1949
45 days
1950
101 days
1951
56 days
1966
78 days
1967
81 days
1968
69 days
1969
63 days
1970
51 days
1971
51 days
1972
150 days
1973
70 days
1974
51 days
1975
84 days
1976
61 days
1977
87 days
1978
62 days
1979
72 days
1980
77 days
1981
109 days
1982
55 days
1983
39 days
1984
58 days
1985
35 days
1986
30 days
1987
31 days
1988
25 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.
Download the Data
Data for San Mateo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Mateo 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.