Santa Maria Asuncion Tlaxiaco Weather Records (MXN00020168)
Record envelope, standing records and threshold days for Santa Maria Asuncion Tlaxiaco (MXN00020168), Mexico, with 67 years of record.
Key Facts for Santa Maria Asuncion Tlaxiaco
- Santa Maria Asuncion Tlaxiaco (MXN00020168) is a weather station in Mexico at 17.27 latitude and -97.67 longitude, 2,095 m (6,873 ft) above sea level.
- The station reports from 1926 to 1992, 67 years of record.
- 1,464 records set at Santa Maria Asuncion Tlaxiaco still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Santa Maria Asuncion Tlaxiaco tied a daily record low maximum temperature of 20.6 C (69.1 F) on 27 February 1992.
About the Station
- Location: Mexico, 17.27 latitude, -97.67 longitude.
- Elevation: 2,095 m (6,873 ft).
- Period of record: 1926 to 1992, 67 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 37.8 C (100.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Feb | 35.6 C (96.1 F) | -7.2 C (19.0 F) | n/a | n/a |
| Mar | 40.0 C (104.0 F) | -3.3 C (26.1 F) | n/a | n/a |
| Apr | 40.0 C (104.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| May | 36.7 C (98.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jun | 35.6 C (96.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jul | 35.6 C (96.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| Aug | 35.0 C (95.0 F) | 0.6 C (33.1 F) | n/a | n/a |
| Sep | 32.8 C (91.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Oct | 37.2 C (99.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| Nov | 37.8 C (100.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Dec | 36.7 C (98.1 F) | -6.1 C (21.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1926 | 44 |
| 1927 | 41 |
| 1928 | 33 |
| 1929 | 28 |
| 1930 | 27 |
| 1931 | 31 |
| 1932 | 36 |
| 1933 | 37 |
| 1934 | 18 |
| 1935 | 25 |
| 1936 | 28 |
| 1937 | 17 |
| 1938 | 20 |
| 1939 | 21 |
| 1940 | 28 |
| 1941 | 27 |
| 1942 | 52 |
| 1943 | 47 |
| 1944 | 23 |
| 1945 | 33 |
| 1946 | 32 |
| 1947 | 10 |
| 1948 | 22 |
| 1949 | 62 |
| 1950 | 100 |
| 1954 | 52 |
| 1955 | 42 |
| 1956 | 33 |
| 1957 | 115 |
| 1958 | 42 |
| 1959 | 18 |
| 1960 | 36 |
| 1961 | 12 |
| 1962 | 39 |
| 1963 | 5 |
| 1965 | 19 |
| 1966 | 38 |
| 1967 | 34 |
| 1968 | 35 |
| 1969 | 31 |
| 1970 | 30 |
| 1971 | 24 |
| 1988 | 9 |
| 1992 | 8 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1966-05-29 | Record daily precipitation | Record daily precipitation 84.8 mm (3.3 in) |
| 1967-02-14 | Record low minimum temperature | Record low minimum temperature -7.2 C (19.0 F) |
| 1967-12-23 | Record low maximum temperature | Record low maximum temperature 13.3 C (55.9 F) |
| 1968-06-28 | Record daily precipitation | Record daily precipitation 86.1 mm (3.4 in) |
| 1969-10-12 | Record daily precipitation | Record daily precipitation 99.8 mm (3.9 in) |
Wettest Day of Each Month
Oct: 99.8 mm (3.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 80.8 mm (3.2 in) | 18 January 1969 |
| Feb | 43.9 mm (1.7 in) | 24 February 1958 |
| Mar | 38.4 mm (1.5 in) | 10 March 1934 |
| Apr | 57.4 mm (2.3 in) | 21 April 1945 |
| May | 84.8 mm (3.3 in) | 29 May 1966 |
| Jun | 86.1 mm (3.4 in) | 28 June 1968 |
| Jul | 80.8 mm (3.2 in) | 16 July 1955 |
| Aug | 81.8 mm (3.2 in) | 12 August 1939 |
| Sep | 81.8 mm (3.2 in) | 24 September 1955 |
| Oct | 99.8 mm (3.9 in) | 12 October 1969 |
| Nov | 38.9 mm (1.5 in) | 1 November 1969 |
| Dec | 28.4 mm (1.1 in) | 20 December 1961 |
Period of Record Coverage
1926 to 1992| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1926 | 139 | 38% | No |
| 1927 | 364 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 363 | 99% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 362 | 99% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1954 | 213 | 58% | No |
| 1955 | 365 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 359 | 98% | Yes |
| 1963 | 151 | 41% | No |
| 1965 | 117 | 32% | No |
| 1966 | 356 | 98% | Yes |
| 1967 | 352 | 96% | Yes |
| 1968 | 356 | 97% | Yes |
| 1969 | 356 | 98% | Yes |
| 1970 | 352 | 96% | Yes |
| 1971 | 178 | 49% | No |
| 1988 | 29 | 8% | No |
| 1992 | 29 | 8% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | daily low max (Tie) | 20.6 C (69.1 F) | tie | 60 years | 6 of 100 (Routine) |
| 24 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | daily low max | 20.0 C (68.0 F) | 0.6 C (1.1 F) | 52 years | 23 of 100 (Routine) |
| 23 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | daily high min (Tie) | 8.9 C (48.0 F) | tie | 44 years | 4 of 100 (Routine) |
| 14 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | daily high min | 8.9 C (48.0 F) | 0.6 C (1.1 F) | 45 years | 21 of 100 (Routine) |
| 9 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | daily low max | 20.0 C (68.0 F) | 0.6 C (1.1 F) | 24 years | 15 of 100 (Routine) |
| 4 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | daily high min | 8.9 C (48.0 F) | 2.2 C (4.0 F) | 46 years | 28 of 100 (Routine) |
| 4 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | daily low max | 15.6 C (60.1 F) | 3.3 C (5.9 F) | 25 years | 24 of 100 (Routine) |
| 3 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | monthly low max | 13.9 C (57.0 F) | 1.1 C (2.0 F) | 0 years | 19 of 100 (Routine) |
| 2 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | daily low max | 15.6 C (60.1 F) | 0.5 C (0.9 F) | 24 years | 14 of 100 (Routine) |
| 1 February 1992 | Santa Maria Asuncion Tlaxiaco, MX | monthly low max | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 23 years | 25 of 100 (Routine) |
| 29 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily low max | 20.6 C (69.1 F) | 4.4 C (7.9 F) | 60 years | 39 of 100 (Notable) |
| 29 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily high min | 7.8 C (46.0 F) | 1.1 C (2.0 F) | 56 years | 26 of 100 (Routine) |
| 19 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily high min | 8.9 C (48.0 F) | 1.1 C (2.0 F) | 56 years | 27 of 100 (Routine) |
| 15 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily low max | 20.6 C (69.1 F) | 1.1 C (2.0 F) | 48 years | 23 of 100 (Routine) |
| 14 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily low max | 20.0 C (68.0 F) | 1.1 C (2.0 F) | 41 years | 21 of 100 (Routine) |
| 13 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily high min | 8.9 C (48.0 F) | 1.1 C (2.0 F) | 18 years | 15 of 100 (Routine) |
| 10 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily high min | 8.9 C (48.0 F) | 1.1 C (2.0 F) | 40 years | 22 of 100 (Routine) |
| 7 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily high min | 8.9 C (48.0 F) | 1.1 C (2.0 F) | 45 years | 23 of 100 (Routine) |
| 2 February 1988 | Santa Maria Asuncion Tlaxiaco, MX | daily high min | 8.9 C (48.0 F) | 3.3 C (5.9 F) | 53 years | 34 of 100 (Routine) |
| 26 June 1971 | Santa Maria Asuncion Tlaxiaco, MX | daily low max (Tie) | 20.6 C (69.1 F) | tie | 41 years | 4 of 100 (Routine) |
Climate Trend
37 complete years, 1927 to 1970| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1927 | 16.3 C | -0.16 C |
| 1928 | 16.5 C | +0.10 C |
| 1929 | 16.5 C | +0.08 C |
| 1930 | 16.6 C | +0.20 C |
| 1931 | 16.9 C | +0.43 C |
| 1932 | 16.7 C | +0.26 C |
| 1933 | 16.6 C | +0.15 C |
| 1934 | 16.2 C | -0.18 C |
| 1935 | 16.2 C | -0.19 C |
| 1936 | 16.8 C | +0.34 C |
| 1937 | 16.9 C | +0.45 C |
| 1938 | 14.9 C | -1.52 C |
| 1939 | 15.3 C | -1.08 C |
| 1940 | 16.0 C | -0.46 C |
| 1941 | 16.4 C | +0.01 C |
| 1942 | 16.7 C | +0.25 C |
| 1943 | 15.7 C | -0.71 C |
| 1944 | 16.5 C | +0.06 C |
| 1945 | 17.1 C | +0.65 C |
| 1946 | 16.8 C | +0.40 C |
| 1947 | 16.9 C | +0.47 C |
| 1948 | 16.3 C | -0.09 C |
| 1949 | 16.6 C | +0.17 C |
| 1950 | 15.6 C | -0.86 C |
| 1955 | 17.0 C | +0.59 C |
| 1956 | 17.0 C | +0.62 C |
| 1957 | 17.9 C | +1.49 C |
| 1958 | 17.3 C | +0.91 C |
| 1959 | 17.5 C | +1.04 C |
| 1960 | 17.1 C | +0.67 C |
| 1961 | 16.5 C | +0.12 C |
| 1962 | 17.8 C | +1.40 C |
| 1966 | 15.1 C | -1.31 C |
| 1967 | 14.9 C | -1.50 C |
| 1968 | 14.9 C | -1.57 C |
| 1969 | 15.3 C | -1.11 C |
| 1970 | 16.2 C | -0.26 C |
The fitted trend in annual mean temperature here over 1927 to 1970 is -0.1 C (-0.3 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.5 to 0.3) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.1 C (-0.3 to 0.1) per decade | -0.1 F (-0.5 to 0.3) per decade | 1927 to 1970 | 37 | Not clearly different from zero |
| Mean daily maximum | 0.1 C (-0.3 to 0.6) per decade | 0.3 F (-0.6 to 1.1) per decade | 1927 to 1970 | 37 | Not clearly different from zero |
| Mean daily minimum | -0.26 C (-0.54 to 0.01) per decade | -0.48 F (-0.97 to 0.02) per decade | 1927 to 1970 | 37 | 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
1926 to 1992| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.0 C (104.0 F) | 1958 | 31.7 C (89.1 F) | 44 |
| Coldest night (TNn) | -7.2 C (19.0 F) | 1967 | -2.2 C (28.0 F) | 44 |
| Wettest day (Rx1day) | 99.8 mm (3.9 in) | 1969 | 45.0 mm (1.8 in) | 42 |
| Wettest five days (Rx5day) | 265.2 mm (10.4 in) | 1955 | 95.0 mm (3.7 in) | 42 |
| Longest dry spell (CDD) | 144 days | 1931 | 50 days | 42 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1926 | 30.0 C (86.0 F) |
| 1927 | 31.7 C (89.1 F) |
| 1928 | 30.6 C (87.1 F) |
| 1929 | 36.7 C (98.1 F) |
| 1930 | 33.9 C (93.0 F) |
| 1931 | 31.7 C (89.1 F) |
| 1932 | 32.8 C (91.0 F) |
| 1933 | 33.9 C (93.0 F) |
| 1934 | 30.6 C (87.1 F) |
| 1935 | 30.6 C (87.1 F) |
| 1936 | 32.8 C (91.0 F) |
| 1937 | 30.6 C (87.1 F) |
| 1938 | 28.3 C (82.9 F) |
| 1939 | 28.9 C (84.0 F) |
| 1940 | 31.7 C (89.1 F) |
| 1941 | 30.0 C (86.0 F) |
| 1942 | 31.7 C (89.1 F) |
| 1943 | 31.1 C (88.0 F) |
| 1944 | 32.2 C (90.0 F) |
| 1945 | 31.7 C (89.1 F) |
| 1946 | 30.6 C (87.1 F) |
| 1947 | 31.7 C (89.1 F) |
| 1948 | 31.7 C (89.1 F) |
| 1949 | 32.8 C (91.0 F) |
| 1950 | 34.4 C (93.9 F) |
| 1954 | 37.2 C (99.0 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 35.6 C (96.1 F) |
| 1957 | 36.7 C (98.1 F) |
| 1958 | 40.0 C (104.0 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 35.0 C (95.0 F) |
| 1961 | 32.8 C (91.0 F) |
| 1962 | 37.8 C (100.0 F) |
| 1963 | 32.8 C (91.0 F) |
| 1965 | 25.6 C (78.1 F) |
| 1966 | 30.0 C (86.0 F) |
| 1967 | 28.9 C (84.0 F) |
| 1968 | 28.9 C (84.0 F) |
| 1969 | 28.9 C (84.0 F) |
| 1970 | 30.0 C (86.0 F) |
| 1971 | 35.0 C (95.0 F) |
| 1988 | 28.9 C (84.0 F) |
| 1992 | 26.7 C (80.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1926 | 0.0 C (32.0 F) |
| 1927 | 0.0 C (32.0 F) |
| 1928 | 0.0 C (32.0 F) |
| 1929 | 0.0 C (32.0 F) |
| 1930 | -2.2 C (28.0 F) |
| 1931 | -1.1 C (30.0 F) |
| 1932 | -4.4 C (24.1 F) |
| 1933 | -6.1 C (21.0 F) |
| 1934 | -2.2 C (28.0 F) |
| 1935 | -1.1 C (30.0 F) |
| 1936 | -4.4 C (24.1 F) |
| 1937 | 0.0 C (32.0 F) |
| 1938 | -5.0 C (23.0 F) |
| 1939 | -3.3 C (26.1 F) |
| 1940 | -4.4 C (24.1 F) |
| 1941 | -2.2 C (28.0 F) |
| 1942 | -6.1 C (21.0 F) |
| 1943 | -6.1 C (21.0 F) |
| 1944 | -4.4 C (24.1 F) |
| 1945 | 0.0 C (32.0 F) |
| 1946 | 0.6 C (33.1 F) |
| 1947 | 0.6 C (33.1 F) |
| 1948 | -2.2 C (28.0 F) |
| 1949 | -1.1 C (30.0 F) |
| 1950 | -3.3 C (26.1 F) |
| 1954 | -2.2 C (28.0 F) |
| 1955 | -3.3 C (26.1 F) |
| 1956 | -2.2 C (28.0 F) |
| 1957 | -0.6 C (30.9 F) |
| 1958 | 0.6 C (33.1 F) |
| 1959 | -3.3 C (26.1 F) |
| 1960 | -5.0 C (23.0 F) |
| 1961 | -6.1 C (21.0 F) |
| 1962 | -2.2 C (28.0 F) |
| 1963 | -3.3 C (26.1 F) |
| 1965 | -2.8 C (27.0 F) |
| 1966 | -0.6 C (30.9 F) |
| 1967 | -7.2 C (19.0 F) |
| 1968 | -4.4 C (24.1 F) |
| 1969 | -5.0 C (23.0 F) |
| 1970 | -6.1 C (21.0 F) |
| 1971 | -6.1 C (21.0 F) |
| 1988 | 0.0 C (32.0 F) |
| 1992 | 0.0 C (32.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1926 | 59.9 mm (2.4 in) |
| 1927 | 33.8 mm (1.3 in) |
| 1928 | 46.0 mm (1.8 in) |
| 1929 | 51.3 mm (2.0 in) |
| 1930 | 36.8 mm (1.4 in) |
| 1931 | 46.0 mm (1.8 in) |
| 1932 | 43.4 mm (1.7 in) |
| 1933 | 56.9 mm (2.2 in) |
| 1934 | 43.9 mm (1.7 in) |
| 1935 | 49.8 mm (2.0 in) |
| 1936 | 42.9 mm (1.7 in) |
| 1937 | 77.5 mm (3.1 in) |
| 1938 | 43.9 mm (1.7 in) |
| 1939 | 81.8 mm (3.2 in) |
| 1940 | 33.8 mm (1.3 in) |
| 1941 | 50.3 mm (2.0 in) |
| 1942 | 54.9 mm (2.2 in) |
| 1943 | 30.5 mm (1.2 in) |
| 1944 | 43.9 mm (1.7 in) |
| 1945 | 57.4 mm (2.3 in) |
| 1946 | 43.4 mm (1.7 in) |
| 1947 | 46.5 mm (1.8 in) |
| 1948 | 47.5 mm (1.9 in) |
| 1949 | 43.9 mm (1.7 in) |
| 1950 | 29.5 mm (1.2 in) |
| 1954 | 43.9 mm (1.7 in) |
| 1955 | 81.8 mm (3.2 in) |
| 1956 | 62.0 mm (2.4 in) |
| 1957 | 46.0 mm (1.8 in) |
| 1958 | 43.9 mm (1.7 in) |
| 1959 | 41.9 mm (1.6 in) |
| 1960 | 51.8 mm (2.0 in) |
| 1961 | 51.8 mm (2.0 in) |
| 1962 | 36.8 mm (1.4 in) |
| 1963 | 23.9 mm (0.9 in) |
| 1965 | 25.7 mm (1.0 in) |
| 1966 | 84.8 mm (3.3 in) |
| 1967 | 43.4 mm (1.7 in) |
| 1968 | 86.1 mm (3.4 in) |
| 1969 | 99.8 mm (3.9 in) |
| 1970 | 0.8 mm (0.03 in) |
| 1971 | 0.0 mm (0.00 in) |
| 1988 | n/a |
| 1992 | n/a |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1926 | 125.1 mm (4.9 in) |
| 1927 | 62.4 mm (2.5 in) |
| 1928 | 94.7 mm (3.7 in) |
| 1929 | 116.8 mm (4.6 in) |
| 1930 | 89.7 mm (3.5 in) |
| 1931 | 91.5 mm (3.6 in) |
| 1932 | 52.6 mm (2.1 in) |
| 1933 | 109.7 mm (4.3 in) |
| 1934 | 91.5 mm (3.6 in) |
| 1935 | 129.5 mm (5.1 in) |
| 1936 | 115.6 mm (4.6 in) |
| 1937 | 106.6 mm (4.2 in) |
| 1938 | 90.6 mm (3.6 in) |
| 1939 | 110.5 mm (4.4 in) |
| 1940 | 55.1 mm (2.2 in) |
| 1941 | 90.1 mm (3.5 in) |
| 1942 | 101.4 mm (4.0 in) |
| 1943 | 89.1 mm (3.5 in) |
| 1944 | 112.9 mm (4.4 in) |
| 1945 | 103.1 mm (4.1 in) |
| 1946 | 138.6 mm (5.5 in) |
| 1947 | 93.1 mm (3.7 in) |
| 1948 | 105.9 mm (4.2 in) |
| 1949 | 84.2 mm (3.3 in) |
| 1950 | 47.8 mm (1.9 in) |
| 1954 | 167.1 mm (6.6 in) |
| 1955 | 265.2 mm (10.4 in) |
| 1956 | 147.6 mm (5.8 in) |
| 1957 | 127.3 mm (5.0 in) |
| 1958 | 99.7 mm (3.9 in) |
| 1959 | 79.4 mm (3.1 in) |
| 1960 | 117.3 mm (4.6 in) |
| 1961 | 95.2 mm (3.7 in) |
| 1962 | 82.3 mm (3.2 in) |
| 1963 | 70.4 mm (2.8 in) |
| 1965 | 52.1 mm (2.1 in) |
| 1966 | 91.2 mm (3.6 in) |
| 1967 | 88.5 mm (3.5 in) |
| 1968 | 134.6 mm (5.3 in) |
| 1969 | 115.9 mm (4.6 in) |
| 1970 | 0.8 mm (0.03 in) |
| 1971 | 0.0 mm (0.00 in) |
| 1988 | n/a |
| 1992 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1926 | 34 days |
| 1927 | 30 days |
| 1928 | 47 days |
| 1929 | 67 days |
| 1930 | 43 days |
| 1931 | 144 days |
| 1932 | 30 days |
| 1933 | 65 days |
| 1934 | 31 days |
| 1935 | 73 days |
| 1936 | 29 days |
| 1937 | 37 days |
| 1938 | 35 days |
| 1939 | 69 days |
| 1940 | 63 days |
| 1941 | 42 days |
| 1942 | 54 days |
| 1943 | 106 days |
| 1944 | 117 days |
| 1945 | 82 days |
| 1946 | 54 days |
| 1947 | 46 days |
| 1948 | 41 days |
| 1949 | 58 days |
| 1950 | 127 days |
| 1954 | 39 days |
| 1955 | 75 days |
| 1956 | 110 days |
| 1957 | 43 days |
| 1958 | 50 days |
| 1959 | 57 days |
| 1960 | 112 days |
| 1961 | 40 days |
| 1962 | 53 days |
| 1963 | 40 days |
| 1965 | 25 days |
| 1966 | 30 days |
| 1967 | 28 days |
| 1968 | 32 days |
| 1969 | 49 days |
| 1970 | 59 days |
| 1971 | 90 days |
| 1988 | n/a |
| 1992 | n/a |
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
26 years with a frostAcross 26 years with a frost, the median last spring frost at Santa Maria Asuncion Tlaxiaco falls on 17 February and the median first autumn frost on 20 November, which leaves a median of 275 days between them.
Fitted over all years, the growing season changes by +0.9 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1927 to 1970) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 17 February | n/a | 17 February | n/a | -4.3 days per decade |
| First autumn frost | 20 November | n/a | 20 November | n/a | -3.5 days per decade |
| Growing days | 275 days | n/a | 275 days | n/a | +0.9 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
36 years, 1927 to 1969A day with at least 47.3 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 120.9 mm (4.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 47.3 mm (1.9 in) | |
| 5 years | 61.3 mm (2.4 in) | |
| 10 years | 72.5 mm (2.9 in) | |
| 25 years | 89.3 mm (3.5 in) | |
| 50 years | 104.0 mm (4.1 in) | Longer than the 36 years of record |
| 100 years | 120.9 mm (4.8 in) | Longer than the 36 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, 36 years of values from 1927 to 1969.
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: 99.8 mm (3.9 in) in 1969; 86.1 mm (3.4 in) in 1968; 84.8 mm (3.3 in) in 1966.
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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.
Data as of . Last revised (2025-12-31).