Morioka climate by month
Averages and records for each calendar month at Morioka, Japan, from 1951 to 2026. The warmest month is August, averaging 28.3°C; the coolest is January at 1.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 1.8°C | −6.4°C | 13.2°C22 January 1988 | −17.2°C17 January 1967 | 69 / 75 |
| February | 2.8°C | −6.0°C | 15.5°C22 February 2026 | −15.5°C6 February 1952 | 67 / 75 |
| March | 7.0°C | −2.6°C | 21.0°C28 March 2018 | −13.3°C2 March 1957 | 68 / 75 |
| April | 14.4°C | 3.0°C | 29.0°C29 April 2015 | −6.6°C2 April 1984 | 66 / 75 |
| May | 20.3°C | 8.1°C | 33.6°C27 May 2019 | −1.7°C4 May 1957 | 68 / 75 |
| June | 23.5°C | 13.4°C | 33.7°C7 June 1987 | 1.3°C9 June 1954 | 69 / 75 |
| July | 26.9°C | 18.0°C | 36.6°C29 July 2025 | 4.3°C1 July 1976 | 67 / 75 |
| August | 28.3°C | 19.3°C | 37.2°C3 August 2025 | 7.4°C31 August 1953 | 68 / 75 |
| September | 23.7°C | 13.9°C | 33.8°C1 September 2010 | 2.5°C29 September 1960 | 66 / 74 |
| October | 17.6°C | 6.5°C | 29.2°C2 October 2019 | −3.4°C28 October 1970 | 67 / 74 |
| November | 10.8°C | 1.1°C | 21.3°C2 November 1979 | −8.6°C30 November 1960 | 64 / 74 |
| December | 4.6°C | −3.1°C | 17.9°C1 December 1990 | −15.0°C18 December 1959 | 64 / 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 64 to 69 years each.
See what Morioka 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.