Tokyo Weather Records (JA000047662)
Record envelope, standing records and threshold days for Tokyo (JA000047662), Japan, with 75 years of record.
Key Facts for Tokyo
- Tokyo (JA000047662) is a weather station in Japan at 35.68 latitude and 139.77 longitude, 36 m (118 ft) above sea level.
- The station reports from 1951 to 2025, 75 years of record.
- 1,464 records set at Tokyo still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Tokyo set a daily record high minimum temperature of 28.3 C (82.9 F) on 5 August 2025.
About the Station
- Location: Japan, 35.68 latitude, 139.77 longitude.
- Elevation: 36 m (118 ft).
- Period of record: 1951 to 2025, 75 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 | 22.6 C (72.7 F) | -6.3 C (20.7 F) | 13.9 C (57.0 F) | -0.2 C (31.6 F) |
| Feb | 24.5 C (76.1 F) | -4.8 C (23.4 F) | n/a | -1.0 C (30.2 F) |
| Mar | 25.3 C (77.5 F) | -4.4 C (24.1 F) | n/a | 0.4 C (32.7 F) |
| Apr | 28.9 C (84.0 F) | 0.3 C (32.5 F) | 23.8 C (74.8 F) | 4.1 C (39.4 F) |
| May | 32.6 C (90.7 F) | 4.0 C (39.2 F) | n/a | 11.6 C (52.9 F) |
| Jun | 36.4 C (97.5 F) | 10.3 C (50.5 F) | n/a | 15.0 C (59.0 F) |
| Jul | 39.5 C (103.1 F) | 14.0 C (57.2 F) | n/a | 20.7 C (69.3 F) |
| Aug | 39.1 C (102.4 F) | 15.9 C (60.6 F) | n/a | 23.8 C (74.8 F) |
| Sep | 38.1 C (100.6 F) | 11.1 C (52.0 F) | n/a | n/a |
| Oct | 32.6 C (90.7 F) | 5.9 C (42.6 F) | n/a | n/a |
| Nov | 26.7 C (80.1 F) | -0.7 C (30.7 F) | n/a | n/a |
| Dec | 24.8 C (76.6 F) | -4.2 C (24.4 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1951 | 33 |
| 1952 | 39 |
| 1953 | 36 |
| 1954 | 51 |
| 1955 | 17 |
| 1956 | 49 |
| 1957 | 27 |
| 1958 | 30 |
| 1959 | 29 |
| 1960 | 18 |
| 1961 | 30 |
| 1962 | 20 |
| 1963 | 25 |
| 1964 | 23 |
| 1965 | 28 |
| 1966 | 25 |
| 1967 | 24 |
| 1968 | 21 |
| 1969 | 30 |
| 1970 | 27 |
| 1971 | 19 |
| 1972 | 15 |
| 1973 | 8 |
| 1974 | 14 |
| 1975 | 10 |
| 1976 | 25 |
| 1977 | 23 |
| 1978 | 17 |
| 1979 | 30 |
| 1980 | 27 |
| 1981 | 21 |
| 1982 | 13 |
| 1983 | 17 |
| 1984 | 25 |
| 1985 | 10 |
| 1986 | 10 |
| 1987 | 40 |
| 1988 | 28 |
| 1989 | 23 |
| 1990 | 16 |
| 1991 | 12 |
| 1992 | 12 |
| 1993 | 21 |
| 1994 | 16 |
| 1995 | 12 |
| 1996 | 10 |
| 1997 | 12 |
| 1998 | 22 |
| 1999 | 12 |
| 2000 | 8 |
| 2001 | 19 |
| 2002 | 19 |
| 2003 | 20 |
| 2004 | 31 |
| 2006 | 9 |
| 2007 | 16 |
| 2008 | 5 |
| 2009 | 11 |
| 2010 | 26 |
| 2011 | 18 |
| 2012 | 10 |
| 2013 | 16 |
| 2014 | 7 |
| 2015 | 11 |
| 2016 | 14 |
| 2017 | 14 |
| 2018 | 30 |
| 2019 | 20 |
| 2020 | 8 |
| 2021 | 8 |
| 2022 | 17 |
| 2023 | 12 |
| 2024 | 11 |
| 2025 | 2 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1987-07-28 | Record high minimum temperature | Record high minimum temperature 28.0 C (82.4 F) |
| 1994-08-03 | Record high maximum temperature | Record high maximum temperature 39.1 C (102.4 F) |
| 1994-08-04 | Record high minimum temperature | Record high minimum temperature 29.3 C (84.7 F) |
| 2004-07-20 | Record high maximum temperature | Record high maximum temperature 39.5 C (103.1 F) |
| 2007-08-16 | Record high minimum temperature | Record high minimum temperature 29.4 C (84.9 F) |
Wettest Day of Each Month
Sep: 371.9 mm (14.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 94.5 mm (3.7 in) | 31 January 2009 |
| Feb | 84.1 mm (3.3 in) | 15 February 2014 |
| Mar | 83.0 mm (3.3 in) | 23 March 1986 |
| Apr | 178.1 mm (7.0 in) | 27 April 1994 |
| May | 131.1 mm (5.2 in) | 3 May 2012 |
| Jun | 225.5 mm (8.9 in) | 28 June 1966 |
| Jul | 167.4 mm (6.6 in) | 8 July 2000 |
| Aug | 244.1 mm (9.6 in) | 27 August 1993 |
| Sep | 371.9 mm (14.6 in) | 26 September 1958 |
| Oct | 222.0 mm (8.7 in) | 6 October 2014 |
| Nov | 113.0 mm (4.4 in) | 20 November 1992 |
| Dec | 82.5 mm (3.2 in) | 24 December 1972 |
Period of Record Coverage
1951 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 361 | 99% | Yes |
| 1956 | 362 | 99% | Yes |
| 1957 | 361 | 99% | Yes |
| 1958 | 362 | 99% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 363 | 99% | Yes |
| 1963 | 361 | 99% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 354 | 97% | Yes |
| 1991 | 343 | 94% | Yes |
| 1992 | 349 | 95% | Yes |
| 1993 | 343 | 94% | Yes |
| 1994 | 350 | 96% | Yes |
| 1995 | 349 | 96% | Yes |
| 1996 | 352 | 96% | Yes |
| 1997 | 340 | 93% | Yes |
| 1998 | 335 | 92% | Yes |
| 1999 | 346 | 95% | Yes |
| 2000 | 347 | 95% | Yes |
| 2001 | 349 | 96% | Yes |
| 2002 | 344 | 94% | Yes |
| 2003 | 334 | 92% | Yes |
| 2004 | 338 | 92% | Yes |
| 2006 | 343 | 94% | Yes |
| 2007 | 348 | 95% | Yes |
| 2008 | 351 | 96% | Yes |
| 2009 | 343 | 94% | Yes |
| 2010 | 348 | 95% | Yes |
| 2011 | 353 | 97% | Yes |
| 2012 | 346 | 95% | Yes |
| 2013 | 112 | 31% | No |
| 2014 | 3 | 1% | No |
| 2015 | 270 | 74% | No |
| 2016 | 321 | 88% | No |
| 2017 | 325 | 89% | No |
| 2018 | 335 | 92% | Yes |
| 2019 | 330 | 90% | Yes |
| 2020 | 73 | 20% | No |
| 2021 | 5 | 1% | No |
| 2022 | 90 | 25% | No |
| 2023 | 7 | 2% | No |
| 2024 | 3 | 1% | No |
| 2025 | 2 | 1% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 5 August 2025 | Tokyo, JP | daily high min | 28.3 C (82.9 F) | 0.3 C (0.5 F) | 11 years | 11 of 100 (Routine) |
| 6 July 2025 | Tokyo, JP | daily high min | 26.3 C (79.3 F) | 0.2 C (0.4 F) | 20 years | 13 of 100 (Routine) |
| 2 April 2025 | Tokyo, JP | daily rain | 64.0 mm (2.5 in) | 30.0 mm (1.2 in) | 27 years | 34 of 100 (Routine) |
| 1 April 2025 | Tokyo, JP | daily rain | 50.0 mm (2.0 in) | 25.0 mm (1.0 in) | 42 years | 35 of 100 (Notable) |
| 17 November 2024 | Tokyo, JP | daily high min | 15.1 C (59.2 F) | 0.5 C (0.9 F) | 52 years | 23 of 100 (Routine) |
| 23 October 2024 | Tokyo, JP | daily high min | 18.8 C (65.8 F) | 0.7 C (1.3 F) | 16 years | 13 of 100 (Routine) |
| 17 October 2024 | Tokyo, JP | daily high min | 20.7 C (69.3 F) | 2.1 C (3.8 F) | 67 years | 34 of 100 (Routine) |
| 16 October 2024 | Tokyo, JP | daily high min | 19.0 C (66.2 F) | 0.1 C (0.2 F) | 3 years | 7 of 100 (Routine) |
| 2 October 2024 | Tokyo, JP | daily high min | 22.0 C (71.6 F) | 0.3 C (0.5 F) | 40 years | 20 of 100 (Routine) |
| 20 September 2024 | Tokyo, JP | daily high min (Tie) | 25.5 C (77.9 F) | tie | 25 years | 3 of 100 (Routine) |
| 13 September 2024 | Tokyo, JP | daily high min | 26.5 C (79.7 F) | 0.8 C (1.4 F) | 35 years | 19 of 100 (Routine) |
| 12 September 2024 | Tokyo, JP | daily high min | 26.8 C (80.2 F) | 0.3 C (0.5 F) | 34 years | 18 of 100 (Routine) |
| 30 August 2024 | Tokyo, JP | daily rain | 73.4 mm (2.9 in) | 23.4 mm (0.9 in) | 39 years | 27 of 100 (Routine) |
| 8 August 2024 | Tokyo, JP | daily rain | 76.5 mm (3.0 in) | 4.1 mm (0.16 in) | 3 years | 8 of 100 (Routine) |
| 29 July 2024 | Tokyo, JP | monthly high min | 29.3 C (84.7 F) | 1.1 C (2.0 F) | 23 years | 27 of 100 (Routine) |
| 21 July 2024 | Tokyo, JP | daily rain | 65.0 mm (2.6 in) | 11.9 mm (0.5 in) | 10 years | 17 of 100 (Routine) |
| 7 July 2024 | Tokyo, JP | daily rain | 36.1 mm (1.4 in) | 2.6 mm (0.10 in) | 42 years | 20 of 100 (Routine) |
| 29 June 2024 | Tokyo, JP | daily rain | 67.6 mm (2.7 in) | 22.6 mm (0.9 in) | 44 years | 32 of 100 (Routine) |
| 19 June 2024 | Tokyo, JP | daily rain | 70.6 mm (2.8 in) | 3.5 mm (0.14 in) | 30 years | 17 of 100 (Routine) |
| 10 May 2024 | Tokyo, JP | daily low min | 8.7 C (47.7 F) | 1.3 C (2.3 F) | 56 years | 27 of 100 (Routine) |
Climate Trend
39 complete years, 1951 to 1989| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1951 | 15.2 C | -0.45 C |
| 1952 | 15.1 C | -0.57 C |
| 1953 | 15.0 C | -0.64 C |
| 1954 | 15.2 C | -0.47 C |
| 1955 | 15.9 C | +0.27 C |
| 1956 | 15.2 C | -0.50 C |
| 1957 | 15.3 C | -0.42 C |
| 1958 | 15.6 C | -0.05 C |
| 1959 | 16.1 C | +0.45 C |
| 1960 | 15.9 C | +0.18 C |
| 1961 | 16.4 C | +0.75 C |
| 1962 | 15.8 C | +0.11 C |
| 1963 | 15.5 C | -0.22 C |
| 1964 | 15.5 C | -0.21 C |
| 1965 | 14.8 C | -0.89 C |
| 1966 | 15.6 C | -0.08 C |
| 1967 | 15.9 C | +0.23 C |
| 1968 | 15.8 C | +0.13 C |
| 1969 | 15.7 C | +0.06 C |
| 1970 | 15.4 C | -0.28 C |
| 1971 | 15.2 C | -0.44 C |
| 1972 | 15.9 C | +0.22 C |
| 1973 | 15.9 C | +0.22 C |
| 1974 | 15.5 C | -0.21 C |
| 1975 | 15.9 C | +0.19 C |
| 1976 | 15.2 C | -0.46 C |
| 1977 | 16.0 C | +0.34 C |
| 1978 | 16.3 C | +0.60 C |
| 1979 | 17.0 C | +1.35 C |
| 1980 | 15.6 C | -0.11 C |
| 1981 | 15.2 C | -0.49 C |
| 1982 | 16.1 C | +0.40 C |
| 1983 | 15.9 C | +0.23 C |
| 1984 | 15.2 C | -0.51 C |
| 1985 | 15.8 C | +0.14 C |
| 1986 | 15.3 C | -0.39 C |
| 1987 | 16.4 C | +0.69 C |
| 1988 | 15.5 C | -0.15 C |
| 1989 | 16.5 C | +0.85 C |
The annual mean temperature here has risen by 0.14 C (0.01 to 0.27) per decade over 1951 to 1989. In Fahrenheit: 0.26 F (0.03 to 0.49) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.14 C (0.01 to 0.27) per decade | 0.26 F (0.03 to 0.49) per decade | 1951 to 1989 | 39 | Rise |
| Mean daily maximum | -0.10 C (-0.24 to 0.04) per decade | -0.2 F (-0.4 to 0.1) per decade | 1951 to 1989 | 39 | Not clearly different from zero |
| Mean daily minimum | 0.4 C (0.3 to 0.5) per decade | 0.7 F (0.5 to 0.9) per decade | 1951 to 1989 | 39 | 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
1951 to 2025| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.5 C (103.1 F) | 2004 | 35.6 C (96.0 F) | 74 |
| Coldest night (TNn) | -6.3 C (20.7 F) | 1954 | -2.2 C (28.1 F) | 74 |
| Wettest day (Rx1day) | 371.9 mm (14.6 in) | 1958 | 103.3 mm (4.1 in) | 74 |
| Wettest five days (Rx5day) | 444.1 mm (17.5 in) | 1958 | 153.2 mm (6.0 in) | 72 |
| Longest dry spell (CDD) | 51 days | 1973 | 19 days | 72 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1951 | 36.4 C (97.5 F) |
| 1952 | 34.5 C (94.1 F) |
| 1953 | 38.4 C (101.1 F) |
| 1954 | 36.3 C (97.3 F) |
| 1955 | 35.4 C (95.7 F) |
| 1956 | 35.5 C (95.9 F) |
| 1957 | 34.9 C (94.8 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 36.4 C (97.5 F) |
| 1960 | 34.7 C (94.5 F) |
| 1961 | 37.5 C (99.5 F) |
| 1962 | 37.6 C (99.7 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 35.2 C (95.4 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 34.9 C (94.8 F) |
| 1967 | 37.2 C (99.0 F) |
| 1968 | 33.5 C (92.3 F) |
| 1969 | 36.6 C (97.9 F) |
| 1970 | 35.5 C (95.9 F) |
| 1971 | 34.4 C (93.9 F) |
| 1972 | 35.2 C (95.4 F) |
| 1973 | 34.7 C (94.5 F) |
| 1974 | 34.2 C (93.6 F) |
| 1975 | 35.6 C (96.1 F) |
| 1976 | 35.4 C (95.7 F) |
| 1977 | 34.9 C (94.8 F) |
| 1978 | 36.3 C (97.3 F) |
| 1979 | 34.3 C (93.7 F) |
| 1980 | 33.0 C (91.4 F) |
| 1981 | 34.3 C (93.7 F) |
| 1982 | 33.0 C (91.4 F) |
| 1983 | 37.1 C (98.8 F) |
| 1984 | 38.1 C (100.6 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 34.6 C (94.3 F) |
| 1987 | 37.3 C (99.1 F) |
| 1988 | 32.9 C (91.2 F) |
| 1989 | 33.5 C (92.3 F) |
| 1990 | 35.9 C (96.6 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 35.2 C (95.4 F) |
| 1993 | 38.3 C (100.9 F) |
| 1994 | 39.1 C (102.4 F) |
| 1995 | 36.4 C (97.5 F) |
| 1996 | 38.7 C (101.7 F) |
| 1997 | 37.7 C (99.9 F) |
| 1998 | 36.1 C (97.0 F) |
| 1999 | 34.8 C (94.6 F) |
| 2000 | 37.8 C (100.0 F) |
| 2001 | 38.1 C (100.6 F) |
| 2002 | 35.8 C (96.4 F) |
| 2003 | 34.3 C (93.7 F) |
| 2004 | 39.5 C (103.1 F) |
| 2006 | 36.1 C (97.0 F) |
| 2007 | 37.5 C (99.5 F) |
| 2008 | 35.3 C (95.5 F) |
| 2009 | 34.2 C (93.6 F) |
| 2010 | 37.2 C (99.0 F) |
| 2011 | 36.1 C (97.0 F) |
| 2012 | 35.7 C (96.3 F) |
| 2013 | 31.3 C (88.3 F) |
| 2014 | 35.5 C (95.9 F) |
| 2015 | 37.7 C (99.9 F) |
| 2016 | 37.7 C (99.9 F) |
| 2017 | 37.1 C (98.8 F) |
| 2018 | 39.0 C (102.2 F) |
| 2019 | 36.2 C (97.2 F) |
| 2020 | 28.4 C (83.1 F) |
| 2021 | 33.5 C (92.3 F) |
| 2022 | 37.0 C (98.6 F) |
| 2023 | 34.4 C (93.9 F) |
| 2024 | 27.4 C (81.3 F) |
| 2025 | 23.8 C (74.8 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1951 | -5.4 C (22.3 F) |
| 1952 | -4.8 C (23.4 F) |
| 1953 | -4.4 C (24.1 F) |
| 1954 | -6.3 C (20.7 F) |
| 1955 | -4.7 C (23.5 F) |
| 1956 | -4.2 C (24.4 F) |
| 1957 | -3.7 C (25.3 F) |
| 1958 | -4.5 C (23.9 F) |
| 1959 | -6.1 C (21.0 F) |
| 1960 | -5.6 C (21.9 F) |
| 1961 | -4.4 C (24.1 F) |
| 1962 | -3.8 C (25.2 F) |
| 1963 | -5.5 C (22.1 F) |
| 1964 | -2.8 C (27.0 F) |
| 1965 | -4.7 C (23.5 F) |
| 1966 | -3.2 C (26.2 F) |
| 1967 | -4.0 C (24.8 F) |
| 1968 | -2.9 C (26.8 F) |
| 1969 | -2.1 C (28.2 F) |
| 1970 | -4.0 C (24.8 F) |
| 1971 | -2.2 C (28.0 F) |
| 1972 | -2.1 C (28.2 F) |
| 1973 | -1.9 C (28.6 F) |
| 1974 | -2.7 C (27.1 F) |
| 1975 | -2.6 C (27.3 F) |
| 1976 | -3.9 C (25.0 F) |
| 1977 | -3.8 C (25.2 F) |
| 1978 | -2.0 C (28.4 F) |
| 1979 | -0.5 C (31.1 F) |
| 1980 | -1.2 C (29.8 F) |
| 1981 | -3.5 C (25.7 F) |
| 1982 | -1.0 C (30.2 F) |
| 1983 | -2.4 C (27.7 F) |
| 1984 | -3.5 C (25.7 F) |
| 1985 | -2.5 C (27.5 F) |
| 1986 | -1.6 C (29.1 F) |
| 1987 | -0.7 C (30.7 F) |
| 1988 | -1.7 C (28.9 F) |
| 1989 | 0.9 C (33.6 F) |
| 1990 | -1.1 C (30.0 F) |
| 1991 | -0.8 C (30.6 F) |
| 1992 | -0.5 C (31.1 F) |
| 1993 | 0.7 C (33.3 F) |
| 1994 | -2.3 C (27.9 F) |
| 1995 | -1.2 C (29.8 F) |
| 1996 | -1.5 C (29.3 F) |
| 1997 | -2.1 C (28.2 F) |
| 1998 | -0.8 C (30.6 F) |
| 1999 | -1.4 C (29.5 F) |
| 2000 | -0.7 C (30.7 F) |
| 2001 | -2.4 C (27.7 F) |
| 2002 | -0.3 C (31.5 F) |
| 2003 | -0.8 C (30.6 F) |
| 2004 | 0.2 C (32.4 F) |
| 2006 | -1.5 C (29.3 F) |
| 2007 | 0.2 C (32.4 F) |
| 2008 | -0.1 C (31.8 F) |
| 2009 | 0.0 C (32.0 F) |
| 2010 | -0.4 C (31.3 F) |
| 2011 | -1.1 C (30.0 F) |
| 2012 | -1.0 C (30.2 F) |
| 2013 | -1.4 C (29.5 F) |
| 2014 | -1.3 C (29.7 F) |
| 2015 | -2.4 C (27.7 F) |
| 2016 | -2.6 C (27.3 F) |
| 2017 | -2.3 C (27.9 F) |
| 2018 | -4.0 C (24.8 F) |
| 2019 | -1.2 C (29.8 F) |
| 2020 | -2.1 C (28.2 F) |
| 2021 | -2.4 C (27.7 F) |
| 2022 | -3.5 C (25.7 F) |
| 2023 | -3.4 C (25.9 F) |
| 2024 | -1.1 C (30.0 F) |
| 2025 | -1.0 C (30.2 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1951 | 103.5 mm (4.1 in) |
| 1952 | 71.5 mm (2.8 in) |
| 1953 | 85.2 mm (3.4 in) |
| 1954 | 74.7 mm (2.9 in) |
| 1955 | 90.6 mm (3.6 in) |
| 1956 | 77.2 mm (3.0 in) |
| 1957 | 119.0 mm (4.7 in) |
| 1958 | 371.9 mm (14.6 in) |
| 1959 | 70.1 mm (2.8 in) |
| 1960 | 83.9 mm (3.3 in) |
| 1961 | 161.2 mm (6.3 in) |
| 1962 | 55.3 mm (2.2 in) |
| 1963 | 154.5 mm (6.1 in) |
| 1964 | 61.9 mm (2.4 in) |
| 1965 | 118.0 mm (4.6 in) |
| 1966 | 225.5 mm (8.9 in) |
| 1967 | 43.0 mm (1.7 in) |
| 1968 | 75.5 mm (3.0 in) |
| 1969 | 74.5 mm (2.9 in) |
| 1970 | 73.0 mm (2.9 in) |
| 1971 | 169.5 mm (6.7 in) |
| 1972 | 103.0 mm (4.1 in) |
| 1973 | 96.5 mm (3.8 in) |
| 1974 | 87.5 mm (3.4 in) |
| 1975 | 93.0 mm (3.7 in) |
| 1976 | 56.0 mm (2.2 in) |
| 1977 | 104.5 mm (4.1 in) |
| 1978 | 54.0 mm (2.1 in) |
| 1979 | 122.5 mm (4.8 in) |
| 1980 | 65.5 mm (2.6 in) |
| 1981 | 215.0 mm (8.5 in) |
| 1982 | 167.5 mm (6.6 in) |
| 1983 | 97.5 mm (3.8 in) |
| 1984 | 73.0 mm (2.9 in) |
| 1985 | 96.0 mm (3.8 in) |
| 1986 | 185.0 mm (7.3 in) |
| 1987 | 66.0 mm (2.6 in) |
| 1988 | 141.0 mm (5.6 in) |
| 1989 | 195.0 mm (7.7 in) |
| 1990 | 122.9 mm (4.8 in) |
| 1991 | 228.1 mm (9.0 in) |
| 1992 | 135.9 mm (5.4 in) |
| 1993 | 244.1 mm (9.6 in) |
| 1994 | 178.1 mm (7.0 in) |
| 1995 | 112.0 mm (4.4 in) |
| 1996 | 261.1 mm (10.3 in) |
| 1997 | 82.0 mm (3.2 in) |
| 1998 | 56.9 mm (2.2 in) |
| 1999 | 126.0 mm (5.0 in) |
| 2000 | 167.4 mm (6.6 in) |
| 2001 | 177.0 mm (7.0 in) |
| 2002 | 88.1 mm (3.5 in) |
| 2003 | 172.0 mm (6.8 in) |
| 2004 | 152.4 mm (6.0 in) |
| 2006 | 88.4 mm (3.5 in) |
| 2007 | 94.5 mm (3.7 in) |
| 2008 | 110.5 mm (4.4 in) |
| 2009 | 143.0 mm (5.6 in) |
| 2010 | 102.6 mm (4.0 in) |
| 2011 | 88.9 mm (3.5 in) |
| 2012 | 131.1 mm (5.2 in) |
| 2013 | 108.5 mm (4.3 in) |
| 2014 | 222.0 mm (8.7 in) |
| 2015 | 155.4 mm (6.1 in) |
| 2016 | 83.6 mm (3.3 in) |
| 2017 | 87.1 mm (3.4 in) |
| 2018 | 81.0 mm (3.2 in) |
| 2019 | 160.0 mm (6.3 in) |
| 2020 | 113.0 mm (4.4 in) |
| 2021 | 144.5 mm (5.7 in) |
| 2022 | 91.4 mm (3.6 in) |
| 2023 | 213.1 mm (8.4 in) |
| 2024 | 76.5 mm (3.0 in) |
| 2025 | 64.0 mm (2.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1951 | 157.0 mm (6.2 in) |
| 1952 | 143.4 mm (5.6 in) |
| 1953 | 127.0 mm (5.0 in) |
| 1954 | 139.6 mm (5.5 in) |
| 1955 | 135.6 mm (5.3 in) |
| 1956 | 126.0 mm (5.0 in) |
| 1957 | 177.2 mm (7.0 in) |
| 1958 | 444.1 mm (17.5 in) |
| 1959 | 129.5 mm (5.1 in) |
| 1960 | 103.0 mm (4.1 in) |
| 1961 | 179.4 mm (7.1 in) |
| 1962 | 130.2 mm (5.1 in) |
| 1963 | 279.1 mm (11.0 in) |
| 1964 | 90.4 mm (3.6 in) |
| 1965 | 197.5 mm (7.8 in) |
| 1966 | 283.5 mm (11.2 in) |
| 1967 | 88.0 mm (3.5 in) |
| 1968 | 144.0 mm (5.7 in) |
| 1969 | 110.0 mm (4.3 in) |
| 1970 | 114.0 mm (4.5 in) |
| 1971 | 190.0 mm (7.5 in) |
| 1972 | 246.0 mm (9.7 in) |
| 1973 | 104.5 mm (4.1 in) |
| 1974 | 165.5 mm (6.5 in) |
| 1975 | 140.5 mm (5.5 in) |
| 1976 | 108.5 mm (4.3 in) |
| 1977 | 206.0 mm (8.1 in) |
| 1978 | 105.0 mm (4.1 in) |
| 1979 | 150.0 mm (5.9 in) |
| 1980 | 125.5 mm (4.9 in) |
| 1981 | 218.0 mm (8.6 in) |
| 1982 | 230.5 mm (9.1 in) |
| 1983 | 157.0 mm (6.2 in) |
| 1984 | 109.5 mm (4.3 in) |
| 1985 | 195.0 mm (7.7 in) |
| 1986 | 222.0 mm (8.7 in) |
| 1987 | 93.0 mm (3.7 in) |
| 1988 | 215.5 mm (8.5 in) |
| 1989 | 244.0 mm (9.6 in) |
| 1990 | 68.6 mm (2.7 in) |
| 1991 | 246.1 mm (9.7 in) |
| 1992 | n/a |
| 1993 | 3.5 mm (0.14 in) |
| 1994 | 97.3 mm (3.8 in) |
| 1995 | 115.0 mm (4.5 in) |
| 1996 | n/a |
| 1997 | 84.8 mm (3.3 in) |
| 1998 | 111.5 mm (4.4 in) |
| 1999 | 250.5 mm (9.9 in) |
| 2000 | 112.6 mm (4.4 in) |
| 2001 | 107.2 mm (4.2 in) |
| 2002 | 97.5 mm (3.8 in) |
| 2003 | 282.7 mm (11.1 in) |
| 2004 | 347.4 mm (13.7 in) |
| 2006 | 161.3 mm (6.4 in) |
| 2007 | 155.7 mm (6.1 in) |
| 2008 | 145.3 mm (5.7 in) |
| 2009 | 177.0 mm (7.0 in) |
| 2010 | 144.8 mm (5.7 in) |
| 2011 | 150.7 mm (5.9 in) |
| 2012 | 164.7 mm (6.5 in) |
| 2013 | 209.3 mm (8.2 in) |
| 2014 | 272.1 mm (10.7 in) |
| 2015 | 337.5 mm (13.3 in) |
| 2016 | 257.3 mm (10.1 in) |
| 2017 | 120.9 mm (4.8 in) |
| 2018 | 115.0 mm (4.5 in) |
| 2019 | 231.1 mm (9.1 in) |
| 2020 | 162.0 mm (6.4 in) |
| 2021 | 257.5 mm (10.1 in) |
| 2022 | 179.3 mm (7.1 in) |
| 2023 | 275.6 mm (10.9 in) |
| 2024 | 157.7 mm (6.2 in) |
| 2025 | 126.2 mm (5.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1951 | 24 days |
| 1952 | 15 days |
| 1953 | 16 days |
| 1954 | 19 days |
| 1955 | 19 days |
| 1956 | 23 days |
| 1957 | 19 days |
| 1958 | 16 days |
| 1959 | 14 days |
| 1960 | 24 days |
| 1961 | 21 days |
| 1962 | 37 days |
| 1963 | 32 days |
| 1964 | 16 days |
| 1965 | 19 days |
| 1966 | 34 days |
| 1967 | 17 days |
| 1968 | 26 days |
| 1969 | 24 days |
| 1970 | 29 days |
| 1971 | 28 days |
| 1972 | 22 days |
| 1973 | 51 days |
| 1974 | 20 days |
| 1975 | 22 days |
| 1976 | 35 days |
| 1977 | 25 days |
| 1978 | 19 days |
| 1979 | 19 days |
| 1980 | 19 days |
| 1981 | 21 days |
| 1982 | 29 days |
| 1983 | 28 days |
| 1984 | 25 days |
| 1985 | 27 days |
| 1986 | 17 days |
| 1987 | 18 days |
| 1988 | 32 days |
| 1989 | 36 days |
| 1990 | 4 days |
| 1991 | 2 days |
| 1992 | 2 days |
| 1993 | 3 days |
| 1994 | 2 days |
| 1995 | 2 days |
| 1996 | 2 days |
| 1997 | 3 days |
| 1998 | 6 days |
| 1999 | 13 days |
| 2000 | n/a |
| 2001 | n/a |
| 2002 | 2 days |
| 2003 | 14 days |
| 2004 | 18 days |
| 2006 | 15 days |
| 2007 | 24 days |
| 2008 | 13 days |
| 2009 | 18 days |
| 2010 | 28 days |
| 2011 | 24 days |
| 2012 | 19 days |
| 2013 | 14 days |
| 2014 | 14 days |
| 2015 | 19 days |
| 2016 | 17 days |
| 2017 | 30 days |
| 2018 | 14 days |
| 2019 | 31 days |
| 2020 | 21 days |
| 2021 | 22 days |
| 2022 | 28 days |
| 2023 | 25 days |
| 2024 | 30 days |
| 2025 | 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.
Frost Dates and Growing Season
28 years with a frostAcross 28 years with a frost, the median last spring frost at Tokyo falls on 7 March and the median first autumn frost on 18 December, which leaves a median of 284 days between them.
Fitted over all years, the growing season changes by +13.4 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1951 to 1985) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 7 March | n/a | 7 March | n/a | -9.1 days per decade |
| First autumn frost | 18 December | n/a | 18 December | n/a | +4.1 days per decade |
| Growing days | 284 days | n/a | 284 days | n/a | +13.4 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
58 years, 1951 to 2024A day with at least 101.2 mm (4.0 in) of rain is expected about once in 2 years. A day with at least 343.0 mm (13.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 101.2 mm (4.0 in) | |
| 5 years | 147.2 mm (5.8 in) | |
| 10 years | 183.9 mm (7.2 in) | |
| 25 years | 239.2 mm (9.4 in) | |
| 50 years | 287.6 mm (11.3 in) | |
| 100 years | 343.0 mm (13.5 in) | Longer than the 58 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, 58 years of values from 1951 to 2024.
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: 371.9 mm (14.6 in) in 1958; 225.5 mm (8.9 in) in 1966; 222.0 mm (8.7 in) in 2014.
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).