Tepatitlan Weather Records (MXN00014147)
Record envelope, standing records and threshold days for Tepatitlan (MXN00014147), Mexico, with 47 years of record.
Key Facts for Tepatitlan
- Tepatitlan (MXN00014147) is a weather station in Mexico at 20.82 latitude and -102.75 longitude, 1,800 m (5,905 ft) above sea level.
- The station reports from 1943 to 1989, 47 years of record.
- 1,464 records set at Tepatitlan still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Tepatitlan set a daily record low minimum temperature of 2.2 C (36.0 F) on 8 December 1989.
About the Station
- Location: Mexico, 20.82 latitude, -102.75 longitude.
- Elevation: 1,800 m (5,905 ft).
- Period of record: 1943 to 1989, 47 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 | 31.7 C (89.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| Feb | 32.2 C (90.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Mar | 36.1 C (97.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Apr | 38.3 C (100.9 F) | 4.4 C (39.9 F) | n/a | n/a |
| May | 39.4 C (102.9 F) | 7.2 C (45.0 F) | n/a | n/a |
| Jun | 37.8 C (100.0 F) | 8.9 C (48.0 F) | n/a | n/a |
| Jul | 33.9 C (93.0 F) | 11.1 C (52.0 F) | n/a | n/a |
| Aug | 31.7 C (89.1 F) | 10.6 C (51.1 F) | n/a | n/a |
| Sep | 33.3 C (91.9 F) | 7.8 C (46.0 F) | n/a | n/a |
| Oct | 37.8 C (100.0 F) | 5.0 C (41.0 F) | n/a | n/a |
| Nov | 31.7 C (89.1 F) | 2.8 C (37.0 F) | n/a | n/a |
| Dec | 30.0 C (86.0 F) | 0.0 C (32.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1943 | 32 |
| 1945 | 10 |
| 1946 | 44 |
| 1950 | 12 |
| 1951 | 74 |
| 1952 | 43 |
| 1953 | 43 |
| 1954 | 32 |
| 1955 | 36 |
| 1956 | 29 |
| 1957 | 61 |
| 1958 | 42 |
| 1959 | 42 |
| 1960 | 52 |
| 1961 | 34 |
| 1962 | 35 |
| 1963 | 39 |
| 1964 | 35 |
| 1965 | 23 |
| 1966 | 37 |
| 1967 | 30 |
| 1968 | 37 |
| 1969 | 41 |
| 1970 | 42 |
| 1971 | 22 |
| 1972 | 28 |
| 1973 | 22 |
| 1974 | 16 |
| 1975 | 41 |
| 1976 | 18 |
| 1977 | 28 |
| 1978 | 34 |
| 1979 | 30 |
| 1980 | 31 |
| 1981 | 15 |
| 1982 | 61 |
| 1983 | 19 |
| 1984 | 31 |
| 1985 | 21 |
| 1986 | 48 |
| 1987 | 53 |
| 1988 | 11 |
| 1989 | 30 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1980-01-25 | Record low maximum temperature | Record low maximum temperature 10.0 C (50.0 F) |
| 1982-05-09 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 1982-05-17 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
Wettest Day of Each Month
Jul: 121.9 mm (4.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 50.8 mm (2.0 in) | 12 January 1967 |
| Feb | 36.8 mm (1.4 in) | 11 February 1966 |
| Mar | 24.9 mm (1.0 in) | 4 March 1968 |
| Apr | 22.4 mm (0.9 in) | 21 April 1952 |
| May | 99.8 mm (3.9 in) | 26 May 1986 |
| Jun | 83.8 mm (3.3 in) | 11 June 1984 |
| Jul | 121.9 mm (4.8 in) | 11 July 1943 |
| Aug | 73.4 mm (2.9 in) | 23 August 1956 |
| Sep | 86.9 mm (3.4 in) | 25 September 1956 |
| Oct | 65.8 mm (2.6 in) | 8 October 1989 |
| Nov | 60.5 mm (2.4 in) | 26 November 1982 |
| Dec | 32.8 mm (1.3 in) | 15 December 1963 |
Period of Record Coverage
1943 to 1989| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1943 | 334 | 92% | Yes |
| 1945 | 120 | 33% | No |
| 1946 | 358 | 98% | Yes |
| 1950 | 92 | 25% | No |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 306 | 84% | No |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 215 | 59% | No |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 303 | 83% | No |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 335 | 92% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 357 | 98% | Yes |
| 1988 | 103 | 28% | No |
| 1989 | 365 | 100% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 8 December 1989 | Tepatitlan, MX | daily low min | 2.2 C (36.0 F) | 1.7 C (3.1 F) | 44 years | 23 of 100 (Routine) |
| 7 December 1989 | Tepatitlan, MX | daily low max | 18.9 C (66.0 F) | 1.1 C (2.0 F) | 36 years | 18 of 100 (Routine) |
| 6 December 1989 | Tepatitlan, MX | daily rain | 26.7 mm (1.1 in) | 26.7 mm (1.1 in) | 44 years | 54 of 100 (Notable) |
| 4 December 1989 | Tepatitlan, MX | daily rain | 4.1 mm (0.16 in) | 2.3 mm (0.09 in) | 10 years | 10 of 100 (Routine) |
| 3 December 1989 | Tepatitlan, MX | daily low max | 16.1 C (61.0 F) | 3.9 C (7.0 F) | 43 years | 30 of 100 (Routine) |
| 2 December 1989 | Tepatitlan, MX | daily low max (Tie) | 20.0 C (68.0 F) | tie | 30 years | 3 of 100 (Routine) |
| 30 November 1989 | Tepatitlan, MX | daily low max (Tie) | 20.0 C (68.0 F) | tie | 43 years | 4 of 100 (Routine) |
| 15 November 1989 | Tepatitlan, MX | daily high max | 30.6 C (87.1 F) | 0.6 C (1.1 F) | 39 years | 17 of 100 (Routine) |
| 12 November 1989 | Tepatitlan, MX | daily rain | 0.3 mm (0.01 in) | 0.3 mm (0.01 in) | 46 years | 17 of 100 (Routine) |
| 7 November 1989 | Tepatitlan, MX | daily high max (Tie) | 30.0 C (86.0 F) | tie | 44 years | 4 of 100 (Routine) |
| 6 November 1989 | Tepatitlan, MX | daily high min (Tie) | 15.0 C (59.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 2 November 1989 | Tepatitlan, MX | daily high max (Tie) | 30.6 C (87.1 F) | tie | 38 years | 3 of 100 (Routine) |
| 27 October 1989 | Tepatitlan, MX | daily high max (Tie) | 30.0 C (86.0 F) | tie | 38 years | 3 of 100 (Routine) |
| 8 October 1989 | Tepatitlan, MX | monthly rain | 65.8 mm (2.6 in) | 10.9 mm (0.4 in) | 21 years | 30 of 100 (Routine) |
| 8 October 1989 | Tepatitlan, MX | daily high min (Tie) | 17.2 C (63.0 F) | tie | 20 years | 2 of 100 (Routine) |
| 6 October 1989 | Tepatitlan, MX | daily high min (Tie) | 16.7 C (62.1 F) | tie | 34 years | 3 of 100 (Routine) |
| 22 September 1989 | Tepatitlan, MX | daily low max | 21.7 C (71.1 F) | 1.6 C (2.9 F) | 24 years | 19 of 100 (Routine) |
| 22 September 1989 | Tepatitlan, MX | daily high min | 18.3 C (64.9 F) | 0.5 C (0.9 F) | 22 years | 13 of 100 (Routine) |
| 9 September 1989 | Tepatitlan, MX | daily high min (Tie) | 17.8 C (64.0 F) | tie | 23 years | 2 of 100 (Routine) |
| 7 September 1989 | Tepatitlan, MX | daily high min (Tie) | 18.9 C (66.0 F) | tie | 14 years | 2 of 100 (Routine) |
Climate Trend
35 complete years, 1946 to 1989| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1946 | 19.1 C | -0.67 C |
| 1951 | 20.0 C | +0.18 C |
| 1952 | 19.5 C | -0.31 C |
| 1953 | 19.7 C | -0.16 C |
| 1954 | 19.9 C | +0.10 C |
| 1955 | 19.4 C | -0.38 C |
| 1957 | 19.4 C | -0.37 C |
| 1958 | 19.0 C | -0.80 C |
| 1959 | 19.1 C | -0.73 C |
| 1960 | 19.4 C | -0.42 C |
| 1961 | 19.1 C | -0.73 C |
| 1962 | 19.3 C | -0.47 C |
| 1963 | 19.5 C | -0.30 C |
| 1964 | 19.6 C | -0.24 C |
| 1965 | 19.4 C | -0.38 C |
| 1966 | 19.3 C | -0.48 C |
| 1967 | 19.6 C | -0.18 C |
| 1968 | 19.7 C | -0.11 C |
| 1969 | 20.4 C | +0.55 C |
| 1970 | 20.0 C | +0.16 C |
| 1971 | 20.0 C | +0.16 C |
| 1972 | 20.3 C | +0.49 C |
| 1973 | 19.8 C | -0.06 C |
| 1974 | 19.6 C | -0.24 C |
| 1976 | 19.6 C | -0.20 C |
| 1977 | 19.8 C | -0.05 C |
| 1978 | 19.9 C | +0.12 C |
| 1979 | 20.2 C | +0.37 C |
| 1981 | 20.1 C | +0.29 C |
| 1982 | 21.4 C | +1.55 C |
| 1983 | 19.4 C | -0.44 C |
| 1984 | 20.3 C | +0.45 C |
| 1986 | 20.6 C | +0.81 C |
| 1987 | 20.9 C | +1.11 C |
| 1989 | 21.0 C | +1.22 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.5) per decade over 1946 to 1989. In Fahrenheit: 0.6 F (0.4 to 0.8) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.2 to 0.5) per decade | 0.6 F (0.4 to 0.8) per decade | 1946 to 1989 | 35 | Rise |
| Mean daily maximum | 0.04 C (-0.17 to 0.24) per decade | 0.1 F (-0.3 to 0.4) per decade | 1946 to 1989 | 35 | Not clearly different from zero |
| Mean daily minimum | 0.6 C (0.5 to 0.8) per decade | 1.1 F (0.9 to 1.4) per decade | 1946 to 1989 | 35 | 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
1943 to 1989| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.4 C (102.9 F) | 1982 | 35.6 C (96.1 F) | 43 |
| Coldest night (TNn) | -6.1 C (21.0 F) | 1960 | 2.2 C (36.0 F) | 43 |
| Wettest day (Rx1day) | 121.9 mm (4.8 in) | 1943 | 54.9 mm (2.2 in) | 43 |
| Wettest five days (Rx5day) | 221.5 mm (8.7 in) | 1976 | 103.4 mm (4.1 in) | 43 |
| Longest dry spell (CDD) | 169 days | 1969 | 78 days | 43 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1943 | 37.2 C (99.0 F) |
| 1945 | 31.1 C (88.0 F) |
| 1946 | 36.1 C (97.0 F) |
| 1950 | 30.0 C (86.0 F) |
| 1951 | 34.4 C (93.9 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 35.0 C (95.0 F) |
| 1955 | 36.1 C (97.0 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 35.6 C (96.1 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 34.4 C (93.9 F) |
| 1960 | 36.1 C (97.0 F) |
| 1961 | 35.6 C (96.1 F) |
| 1962 | 36.1 C (97.0 F) |
| 1963 | 35.0 C (95.0 F) |
| 1964 | 35.6 C (96.1 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 35.6 C (96.1 F) |
| 1967 | 37.2 C (99.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 36.1 C (97.0 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 28.9 C (84.0 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 38.3 C (100.9 F) |
| 1978 | 34.4 C (93.9 F) |
| 1979 | 37.8 C (100.0 F) |
| 1980 | 36.7 C (98.1 F) |
| 1981 | 35.6 C (96.1 F) |
| 1982 | 39.4 C (102.9 F) |
| 1983 | 35.6 C (96.1 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 37.8 C (100.0 F) |
| 1987 | 35.0 C (95.0 F) |
| 1988 | 31.7 C (89.1 F) |
| 1989 | 37.2 C (99.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1943 | 2.2 C (36.0 F) |
| 1945 | 1.7 C (35.1 F) |
| 1946 | 1.7 C (35.1 F) |
| 1950 | 3.3 C (37.9 F) |
| 1951 | 0.6 C (33.1 F) |
| 1952 | 1.7 C (35.1 F) |
| 1953 | 1.1 C (34.0 F) |
| 1954 | 1.1 C (34.0 F) |
| 1955 | 0.0 C (32.0 F) |
| 1956 | 0.0 C (32.0 F) |
| 1957 | 1.7 C (35.1 F) |
| 1958 | 0.6 C (33.1 F) |
| 1959 | 0.6 C (33.1 F) |
| 1960 | -6.1 C (21.0 F) |
| 1961 | 1.1 C (34.0 F) |
| 1962 | 0.6 C (33.1 F) |
| 1963 | 0.0 C (32.0 F) |
| 1964 | 0.0 C (32.0 F) |
| 1965 | 2.2 C (36.0 F) |
| 1966 | 0.6 C (33.1 F) |
| 1967 | 1.7 C (35.1 F) |
| 1968 | 3.9 C (39.0 F) |
| 1969 | 3.3 C (37.9 F) |
| 1970 | 2.2 C (36.0 F) |
| 1971 | 2.2 C (36.0 F) |
| 1972 | 3.9 C (39.0 F) |
| 1973 | 1.1 C (34.0 F) |
| 1974 | 4.4 C (39.9 F) |
| 1975 | 3.9 C (39.0 F) |
| 1976 | 3.9 C (39.0 F) |
| 1977 | 6.1 C (43.0 F) |
| 1978 | 3.3 C (37.9 F) |
| 1979 | 5.0 C (41.0 F) |
| 1980 | 5.6 C (42.1 F) |
| 1981 | 3.9 C (39.0 F) |
| 1982 | 6.7 C (44.1 F) |
| 1983 | 3.9 C (39.0 F) |
| 1984 | 5.6 C (42.1 F) |
| 1985 | 1.7 C (35.1 F) |
| 1986 | 1.7 C (35.1 F) |
| 1987 | 3.9 C (39.0 F) |
| 1988 | 2.8 C (37.0 F) |
| 1989 | 2.2 C (36.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1943 | 121.9 mm (4.8 in) |
| 1945 | 31.0 mm (1.2 in) |
| 1946 | 44.5 mm (1.8 in) |
| 1950 | 15.7 mm (0.6 in) |
| 1951 | 58.9 mm (2.3 in) |
| 1952 | 45.5 mm (1.8 in) |
| 1953 | 56.9 mm (2.2 in) |
| 1954 | 38.9 mm (1.5 in) |
| 1955 | 38.9 mm (1.5 in) |
| 1956 | 86.9 mm (3.4 in) |
| 1957 | 31.0 mm (1.2 in) |
| 1958 | 82.3 mm (3.2 in) |
| 1959 | 38.9 mm (1.5 in) |
| 1960 | 43.4 mm (1.7 in) |
| 1961 | 48.8 mm (1.9 in) |
| 1962 | 58.9 mm (2.3 in) |
| 1963 | 47.8 mm (1.9 in) |
| 1964 | 48.8 mm (1.9 in) |
| 1965 | 65.8 mm (2.6 in) |
| 1966 | 52.8 mm (2.1 in) |
| 1967 | 54.9 mm (2.2 in) |
| 1968 | 83.8 mm (3.3 in) |
| 1969 | 61.0 mm (2.4 in) |
| 1970 | 83.8 mm (3.3 in) |
| 1971 | 46.0 mm (1.8 in) |
| 1972 | 51.8 mm (2.0 in) |
| 1973 | 55.9 mm (2.2 in) |
| 1974 | 51.8 mm (2.0 in) |
| 1975 | 55.9 mm (2.2 in) |
| 1976 | 101.9 mm (4.0 in) |
| 1977 | 51.8 mm (2.0 in) |
| 1978 | 49.3 mm (1.9 in) |
| 1979 | 30.0 mm (1.2 in) |
| 1980 | 45.0 mm (1.8 in) |
| 1981 | 68.8 mm (2.7 in) |
| 1982 | 60.5 mm (2.4 in) |
| 1983 | 59.9 mm (2.4 in) |
| 1984 | 83.8 mm (3.3 in) |
| 1985 | 79.8 mm (3.1 in) |
| 1986 | 99.8 mm (3.9 in) |
| 1987 | 54.9 mm (2.2 in) |
| 1988 | 16.8 mm (0.7 in) |
| 1989 | 65.8 mm (2.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1943 | 135.1 mm (5.3 in) |
| 1945 | 39.1 mm (1.5 in) |
| 1946 | 67.8 mm (2.7 in) |
| 1950 | 25.1 mm (1.0 in) |
| 1951 | 121.4 mm (4.8 in) |
| 1952 | 121.9 mm (4.8 in) |
| 1953 | 98.8 mm (3.9 in) |
| 1954 | 77.5 mm (3.1 in) |
| 1955 | 90.9 mm (3.6 in) |
| 1956 | 105.7 mm (4.2 in) |
| 1957 | 67.4 mm (2.7 in) |
| 1958 | 134.9 mm (5.3 in) |
| 1959 | 85.9 mm (3.4 in) |
| 1960 | 88.4 mm (3.5 in) |
| 1961 | 97.6 mm (3.8 in) |
| 1962 | 128.4 mm (5.1 in) |
| 1963 | 103.4 mm (4.1 in) |
| 1964 | 103.4 mm (4.1 in) |
| 1965 | 137.6 mm (5.4 in) |
| 1966 | 102.4 mm (4.0 in) |
| 1967 | 117.7 mm (4.6 in) |
| 1968 | 150.4 mm (5.9 in) |
| 1969 | 103.7 mm (4.1 in) |
| 1970 | 159.3 mm (6.3 in) |
| 1971 | 91.4 mm (3.6 in) |
| 1972 | 83.6 mm (3.3 in) |
| 1973 | 172.3 mm (6.8 in) |
| 1974 | 81.3 mm (3.2 in) |
| 1975 | 110.4 mm (4.3 in) |
| 1976 | 221.5 mm (8.7 in) |
| 1977 | 83.3 mm (3.3 in) |
| 1978 | 91.5 mm (3.6 in) |
| 1979 | 72.2 mm (2.8 in) |
| 1980 | 92.0 mm (3.6 in) |
| 1981 | 133.3 mm (5.2 in) |
| 1982 | 86.6 mm (3.4 in) |
| 1983 | 142.5 mm (5.6 in) |
| 1984 | 139.5 mm (5.5 in) |
| 1985 | 157.4 mm (6.2 in) |
| 1986 | 140.4 mm (5.5 in) |
| 1987 | 111.3 mm (4.4 in) |
| 1988 | 16.8 mm (0.7 in) |
| 1989 | 90.7 mm (3.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1943 | 120 days |
| 1945 | 49 days |
| 1946 | 50 days |
| 1950 | 90 days |
| 1951 | 59 days |
| 1952 | 50 days |
| 1953 | 153 days |
| 1954 | 78 days |
| 1955 | 66 days |
| 1956 | 114 days |
| 1957 | 72 days |
| 1958 | 72 days |
| 1959 | 98 days |
| 1960 | 109 days |
| 1961 | 113 days |
| 1962 | 71 days |
| 1963 | 46 days |
| 1964 | 76 days |
| 1965 | 55 days |
| 1966 | 66 days |
| 1967 | 67 days |
| 1968 | 76 days |
| 1969 | 169 days |
| 1970 | 103 days |
| 1971 | 76 days |
| 1972 | 118 days |
| 1973 | 73 days |
| 1974 | 120 days |
| 1975 | 142 days |
| 1976 | 91 days |
| 1977 | 101 days |
| 1978 | 80 days |
| 1979 | 110 days |
| 1980 | 86 days |
| 1981 | 44 days |
| 1982 | 52 days |
| 1983 | 126 days |
| 1984 | 70 days |
| 1985 | 108 days |
| 1986 | 84 days |
| 1987 | 58 days |
| 1988 | 73 days |
| 1989 | 112 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.
Rainfall Return Levels
39 years, 1943 to 1989A day with at least 56.2 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 132.8 mm (5.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 56.2 mm (2.2 in) | |
| 5 years | 74.1 mm (2.9 in) | |
| 10 years | 86.9 mm (3.4 in) | |
| 25 years | 104.3 mm (4.1 in) | |
| 50 years | 118.1 mm (4.6 in) | Longer than the 39 years of record |
| 100 years | 132.8 mm (5.2 in) | Longer than the 39 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, 39 years of values from 1943 to 1989.
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: 121.9 mm (4.8 in) in 1943; 101.9 mm (4.0 in) in 1976; 99.8 mm (3.9 in) in 1986.
Download the Data
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).