Mito climate by month
Averages and records for each calendar month at Mito, Japan, from 1951 to 2026. The warmest month is August, averaging 29.7°C; the coolest is January at 9.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 9.0°C | −2.8°C | 23.8°C27 January 1969 | −11.0°C17 January 1970 | 69 / 75 |
| February | 9.5°C | −2.0°C | 24.3°C14 February 2009 | −12.7°C5 February 1952 | 68 / 75 |
| March | 12.3°C | 1.0°C | 25.2°C29 March 2007 | −8.1°C6 March 1977 | 68 / 75 |
| April | 17.5°C | 6.6°C | 29.3°C28 April 2015 | −3.5°C6 April 1965 | 66 / 75 |
| May | 21.7°C | 11.6°C | 33.4°C26 May 2019 | −0.1°C3 May 1953 | 66 / 75 |
| June | 24.2°C | 16.1°C | 36.2°C25 June 2022 | 7.6°C3 June 1958 | 66 / 75 |
| July | 27.9°C | 20.1°C | 38.4°C5 July 1997 | 7.8°C3 July 2026 | 67 / 75 |
| August | 29.7°C | 21.6°C | 38.4°C15 August 1996 | 13.4°C10 August 1980 | 68 / 75 |
| September | 25.8°C | 17.8°C | 36.8°C2 September 2000 | 8.4°C28 September 1951 | 66 / 74 |
| October | 20.7°C | 11.2°C | 33.1°C1 October 1979 | 0.7°C31 October 1984 | 66 / 74 |
| November | 16.0°C | 4.9°C | 26.2°C1 November 1977 | −4.2°C30 November 1976 | 65 / 74 |
| December | 11.5°C | −0.4°C | 25.0°C5 December 2004 | −7.8°C25 December 1973 | 65 / 74 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 65 to 69 years each.
See what Mito is doing right now
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.