Porto Weather Records (BR001241017)
Record envelope, standing records and threshold days for Porto (BR001241017), Brazil, with 59 years of record.
Key Facts for Porto
- Porto (BR001241017) is a weather station in Brazil at -12.50 latitude and -41.30 longitude, 355 m (1,165 ft) above sea level.
- The station reports from 1941 to 1999, 59 years of record.
- 0 records set at Porto still stand.
- Records are tracked for prcp: an element needs 30 years of data to be eligible.
- Porto set a daily record precipitation of 70.9 mm (2.8 in) on 16 November 1998.
About the Station
- Location: Brazil, -12.50 latitude, -41.30 longitude.
- Elevation: 355 m (1,165 ft).
- Period of record: 1941 to 1999, 59 years.
- Eligible elements: 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 | n/a | n/a | n/a | n/a |
| Feb | n/a | n/a | n/a | n/a |
| Mar | n/a | n/a | n/a | n/a |
| Apr | n/a | n/a | n/a | n/a |
| May | n/a | n/a | n/a | n/a |
| Jun | n/a | n/a | n/a | n/a |
| Jul | n/a | n/a | n/a | n/a |
| Aug | n/a | n/a | n/a | n/a |
| Sep | n/a | n/a | n/a | n/a |
| Oct | n/a | n/a | n/a | n/a |
| Nov | n/a | n/a | n/a | n/a |
| Dec | n/a | n/a | n/a | n/a |
Which Years Hold Standing Records
0 standing records| Year set | Standing records |
|---|
Wettest Day of Each Month
Nov: 176.0 mm (6.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 174.0 mm (6.9 in) | 21 January 1958 |
| Feb | 113.0 mm (4.4 in) | 7 February 1964 |
| Mar | 166.0 mm (6.5 in) | 8 March 1960 |
| Apr | 109.6 mm (4.3 in) | 5 April 1966 |
| May | 72.0 mm (2.8 in) | 4 May 1978 |
| Jun | 89.0 mm (3.5 in) | 9 June 1985 |
| Jul | 40.2 mm (1.6 in) | 15 July 1947 |
| Aug | 31.5 mm (1.2 in) | 17 August 1964 |
| Sep | 76.0 mm (3.0 in) | 30 September 1982 |
| Oct | 86.2 mm (3.4 in) | 11 October 1974 |
| Nov | 176.0 mm (6.9 in) | 17 November 1956 |
| Dec | 131.3 mm (5.2 in) | 15 December 1977 |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 16 November 1998 | Porto, BR | daily rain | 70.9 mm (2.8 in) | 19.3 mm (0.8 in) | 8 years | 16 of 100 (Routine) |
| 7 November 1998 | Porto, BR | daily rain | 59.2 mm (2.3 in) | 24.2 mm (1.0 in) | 56 years | 33 of 100 (Routine) |
| 10 June 1997 | Porto, BR | daily rain | 14.6 mm (0.6 in) | 0.3 mm (0.01 in) | 48 years | 19 of 100 (Routine) |
| 1 May 1997 | Porto, BR | daily rain | 21.3 mm (0.8 in) | 14.1 mm (0.6 in) | 12 years | 20 of 100 (Routine) |
| 15 April 1997 | Porto, BR | daily rain | 22.9 mm (0.9 in) | 8.5 mm (0.33 in) | 8 years | 12 of 100 (Routine) |
| 7 April 1997 | Porto, BR | daily rain | 23.2 mm (0.9 in) | 0.6 mm (0.02 in) | 46 years | 18 of 100 (Routine) |
| 31 March 1997 | Porto, BR | daily rain | 23.6 mm (0.9 in) | 11.6 mm (0.5 in) | 36 years | 20 of 100 (Routine) |
| 30 March 1997 | Porto, BR | daily rain | 63.3 mm (2.5 in) | 38.1 mm (1.5 in) | 48 years | 40 of 100 (Notable) |
| 29 March 1997 | Porto, BR | daily rain | 23.2 mm (0.9 in) | 3.2 mm (0.13 in) | 14 years | 10 of 100 (Routine) |
| 27 March 1997 | Porto, BR | daily rain | 83.7 mm (3.3 in) | 9.5 mm (0.37 in) | 10 years | 13 of 100 (Routine) |
| 24 March 1997 | Porto, BR | daily rain | 46.1 mm (1.8 in) | 21.1 mm (0.8 in) | 52 years | 32 of 100 (Routine) |
| 5 March 1997 | Porto, BR | daily rain | 36.1 mm (1.4 in) | 2.1 mm (0.08 in) | 3 years | 6 of 100 (Routine) |
| 26 February 1997 | Porto, BR | daily rain | 22.1 mm (0.9 in) | 9.5 mm (0.37 in) | 2 years | 10 of 100 (Routine) |
| 23 February 1997 | Porto, BR | daily rain | 12.4 mm (0.5 in) | 0.9 mm (0.04 in) | 34 years | 15 of 100 (Routine) |
| 29 February 1996 | Porto, BR | daily rain (Tie) | 35.5 mm (1.4 in) | tie | 52 years | 5 of 100 (Routine) |
| 23 November 1995 | Porto, BR | daily rain | 49.3 mm (1.9 in) | 8.8 mm (0.35 in) | 45 years | 22 of 100 (Routine) |
| 26 February 1995 | Porto, BR | daily rain | 12.6 mm (0.5 in) | 1.4 mm (0.06 in) | 25 years | 12 of 100 (Routine) |
| 21 November 1994 | Porto, BR | daily rain | 23.1 mm (0.9 in) | 0.9 mm (0.04 in) | 40 years | 17 of 100 (Routine) |
| 2 September 1994 | Porto, BR | daily rain | 9.4 mm (0.37 in) | 3.4 mm (0.13 in) | 52 years | 20 of 100 (Routine) |
| 11 August 1994 | Porto, BR | daily rain | 10.0 mm (0.4 in) | 1.6 mm (0.06 in) | 44 years | 20 of 100 (Routine) |
Extremes by Year
1941 to 1999| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Wettest day (Rx1day) | 176.0 mm (6.9 in) | 1956 | 76.7 mm (3.0 in) | 59 |
| Wettest five days (Rx5day) | 395.3 mm (15.6 in) | 1956 | 140.1 mm (5.5 in) | 59 |
| Longest dry spell (CDD) | 129 days | 1997 | 35 days | 59 |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1941 | 53.1 mm (2.1 in) |
| 1942 | 53.0 mm (2.1 in) |
| 1943 | 50.0 mm (2.0 in) |
| 1944 | 50.0 mm (2.0 in) |
| 1945 | 55.1 mm (2.2 in) |
| 1946 | 66.1 mm (2.6 in) |
| 1947 | 90.2 mm (3.6 in) |
| 1948 | 73.2 mm (2.9 in) |
| 1949 | 80.8 mm (3.2 in) |
| 1950 | 80.5 mm (3.2 in) |
| 1951 | 86.2 mm (3.4 in) |
| 1952 | 78.4 mm (3.1 in) |
| 1953 | 94.8 mm (3.7 in) |
| 1954 | 131.0 mm (5.2 in) |
| 1955 | 78.4 mm (3.1 in) |
| 1956 | 176.0 mm (6.9 in) |
| 1957 | 75.0 mm (3.0 in) |
| 1958 | 174.0 mm (6.9 in) |
| 1959 | 65.6 mm (2.6 in) |
| 1960 | 166.0 mm (6.5 in) |
| 1961 | 35.8 mm (1.4 in) |
| 1962 | 46.4 mm (1.8 in) |
| 1963 | 58.6 mm (2.3 in) |
| 1964 | 113.0 mm (4.4 in) |
| 1965 | 60.0 mm (2.4 in) |
| 1966 | 114.0 mm (4.5 in) |
| 1967 | 99.0 mm (3.9 in) |
| 1968 | 71.6 mm (2.8 in) |
| 1969 | 77.8 mm (3.1 in) |
| 1970 | 76.7 mm (3.0 in) |
| 1971 | 87.7 mm (3.5 in) |
| 1972 | 84.5 mm (3.3 in) |
| 1973 | 83.0 mm (3.3 in) |
| 1974 | 133.4 mm (5.3 in) |
| 1975 | 112.6 mm (4.4 in) |
| 1976 | 60.3 mm (2.4 in) |
| 1977 | 131.3 mm (5.2 in) |
| 1978 | 108.5 mm (4.3 in) |
| 1979 | 68.0 mm (2.7 in) |
| 1980 | 66.0 mm (2.6 in) |
| 1981 | 89.0 mm (3.5 in) |
| 1982 | 76.0 mm (3.0 in) |
| 1983 | 58.0 mm (2.3 in) |
| 1984 | 48.0 mm (1.9 in) |
| 1985 | 91.1 mm (3.6 in) |
| 1986 | 90.0 mm (3.5 in) |
| 1987 | 74.2 mm (2.9 in) |
| 1988 | 62.6 mm (2.5 in) |
| 1989 | 78.1 mm (3.1 in) |
| 1990 | 56.0 mm (2.2 in) |
| 1991 | 83.3 mm (3.3 in) |
| 1992 | 84.0 mm (3.3 in) |
| 1993 | 43.5 mm (1.7 in) |
| 1994 | 36.4 mm (1.4 in) |
| 1995 | 49.3 mm (1.9 in) |
| 1996 | 35.5 mm (1.4 in) |
| 1997 | 83.7 mm (3.3 in) |
| 1998 | 70.9 mm (2.8 in) |
| 1999 | 17.9 mm (0.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1941 | 153.8 mm (6.1 in) |
| 1942 | 120.8 mm (4.8 in) |
| 1943 | 113.8 mm (4.5 in) |
| 1944 | 118.5 mm (4.7 in) |
| 1945 | 109.2 mm (4.3 in) |
| 1946 | 72.3 mm (2.8 in) |
| 1947 | 239.4 mm (9.4 in) |
| 1948 | 129.8 mm (5.1 in) |
| 1949 | 179.8 mm (7.1 in) |
| 1950 | 98.1 mm (3.9 in) |
| 1951 | 118.3 mm (4.7 in) |
| 1952 | 155.5 mm (6.1 in) |
| 1953 | 128.8 mm (5.1 in) |
| 1954 | 259.9 mm (10.2 in) |
| 1955 | 147.9 mm (5.8 in) |
| 1956 | 395.3 mm (15.6 in) |
| 1957 | 146.3 mm (5.8 in) |
| 1958 | 224.3 mm (8.8 in) |
| 1959 | 166.4 mm (6.6 in) |
| 1960 | 324.2 mm (12.8 in) |
| 1961 | 137.9 mm (5.4 in) |
| 1962 | 80.1 mm (3.2 in) |
| 1963 | 141.2 mm (5.6 in) |
| 1964 | 155.7 mm (6.1 in) |
| 1965 | 159.3 mm (6.3 in) |
| 1966 | 231.6 mm (9.1 in) |
| 1967 | 208.2 mm (8.2 in) |
| 1968 | 139.4 mm (5.5 in) |
| 1969 | 135.4 mm (5.3 in) |
| 1970 | 127.9 mm (5.0 in) |
| 1971 | 147.9 mm (5.8 in) |
| 1972 | 212.4 mm (8.4 in) |
| 1973 | 108.5 mm (4.3 in) |
| 1974 | 140.1 mm (5.5 in) |
| 1975 | 232.1 mm (9.1 in) |
| 1976 | 131.7 mm (5.2 in) |
| 1977 | 212.5 mm (8.4 in) |
| 1978 | 275.9 mm (10.9 in) |
| 1979 | 134.4 mm (5.3 in) |
| 1980 | 176.2 mm (6.9 in) |
| 1981 | 216.0 mm (8.5 in) |
| 1982 | 101.1 mm (4.0 in) |
| 1983 | 186.0 mm (7.3 in) |
| 1984 | 85.2 mm (3.4 in) |
| 1985 | 256.4 mm (10.1 in) |
| 1986 | 91.3 mm (3.6 in) |
| 1987 | 115.7 mm (4.6 in) |
| 1988 | 111.2 mm (4.4 in) |
| 1989 | 201.5 mm (7.9 in) |
| 1990 | 75.5 mm (3.0 in) |
| 1991 | 166.3 mm (6.5 in) |
| 1992 | 227.4 mm (9.0 in) |
| 1993 | 72.2 mm (2.8 in) |
| 1994 | 129.5 mm (5.1 in) |
| 1995 | 105.0 mm (4.1 in) |
| 1996 | 57.1 mm (2.2 in) |
| 1997 | 218.4 mm (8.6 in) |
| 1998 | 96.8 mm (3.8 in) |
| 1999 | 41.9 mm (1.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1941 | 35 days |
| 1942 | 29 days |
| 1943 | 50 days |
| 1944 | 39 days |
| 1945 | 35 days |
| 1946 | 36 days |
| 1947 | 81 days |
| 1948 | 34 days |
| 1949 | 19 days |
| 1950 | 34 days |
| 1951 | 93 days |
| 1952 | 59 days |
| 1953 | 24 days |
| 1954 | 74 days |
| 1955 | 24 days |
| 1956 | 31 days |
| 1957 | 24 days |
| 1958 | 24 days |
| 1959 | 35 days |
| 1960 | 29 days |
| 1961 | 57 days |
| 1962 | 33 days |
| 1963 | 79 days |
| 1964 | 24 days |
| 1965 | 35 days |
| 1966 | 39 days |
| 1967 | 28 days |
| 1968 | 23 days |
| 1969 | 35 days |
| 1970 | 31 days |
| 1971 | 37 days |
| 1972 | 22 days |
| 1973 | 24 days |
| 1974 | 14 days |
| 1975 | 41 days |
| 1976 | 30 days |
| 1977 | 33 days |
| 1978 | 19 days |
| 1979 | 23 days |
| 1980 | 35 days |
| 1981 | 23 days |
| 1982 | 30 days |
| 1983 | 36 days |
| 1984 | 28 days |
| 1985 | 24 days |
| 1986 | 41 days |
| 1987 | 71 days |
| 1988 | 38 days |
| 1989 | 35 days |
| 1990 | 36 days |
| 1991 | 56 days |
| 1992 | 65 days |
| 1993 | 66 days |
| 1994 | 50 days |
| 1995 | 48 days |
| 1996 | 42 days |
| 1997 | 129 days |
| 1998 | 77 days |
| 1999 | 20 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
55 years, 1942 to 1998A day with at least 75.3 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 190.1 mm (7.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 75.3 mm (3.0 in) | |
| 5 years | 103.0 mm (4.1 in) | |
| 10 years | 122.6 mm (4.8 in) | |
| 25 years | 148.6 mm (5.9 in) | |
| 50 years | 168.9 mm (6.6 in) | |
| 100 years | 190.1 mm (7.5 in) | Longer than the 55 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, 55 years of values from 1942 to 1998.
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: 176.0 mm (6.9 in) in 1956; 174.0 mm (6.9 in) in 1958; 166.0 mm (6.5 in) in 1960.
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).