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Built 2026-10-17 (17 October 2026)

Morioka Weather Records (JA000047584)

Record envelope, standing records and threshold days for Morioka (JA000047584), Japan, with 76 years of record.

Key Facts for Morioka

  • Morioka (JA000047584) is a weather station in Japan at 39.70 latitude and 141.17 longitude, 155 m (509 ft) above sea level.
  • The station reports from 1951 to 2026, 76 years of record.
  • 1,464 records set at Morioka still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Morioka set a daily record precipitation of 73.0 mm (2.9 in) on 3 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Japan, 39.70 latitude, 141.17 longitude.
  • Elevation: 155 m (509 ft).
  • Period of record: 1951 to 2026, 76 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

4 days at or beyond a record
Daily record high and record low at Morioka, with 2026 drawn through them The band shows the record high and record low for each calendar day at Morioka. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Morioka. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Morioka, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.2 C (55.8 F)-17.2 C (1.0 F)5.0 C (41.0 F)-11.1 C (12.0 F)
Feb15.5 C (59.9 F)-15.5 C (4.1 F)15.5 C (59.9 F)-10.2 C (13.6 F)
Mar21.0 C (69.8 F)-13.3 C (8.1 F)15.2 C (59.4 F)-4.0 C (24.8 F)
Apr29.0 C (84.2 F)-6.6 C (20.1 F)21.9 C (71.4 F)-0.1 C (31.8 F)
May33.6 C (92.5 F)-1.7 C (28.9 F)28.9 C (84.0 F)2.8 C (37.0 F)
Jun33.7 C (92.7 F)1.3 C (34.3 F)31.9 C (89.4 F)9.9 C (49.8 F)
Jul36.6 C (97.9 F)4.3 C (39.7 F)33.5 C (92.3 F)14.5 C (58.1 F)
Aug37.2 C (99.0 F)7.4 C (45.3 F)34.5 C (94.1 F)16.1 C (61.0 F)
Sep33.8 C (92.8 F)2.5 C (36.5 F)27.6 C (81.7 F)9.4 C (48.9 F)
Oct29.2 C (84.6 F)-3.4 C (25.9 F)23.6 C (74.5 F)5.4 C (41.7 F)
Nov21.3 C (70.3 F)-8.6 C (16.5 F)n/an/a
Dec17.9 C (64.2 F)-15.0 C (5.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Morioka by the year they were set 1,464 records at Morioka still stand. 2025 holds the most, with 54. 02040601951: 271952: 231953: 181954: 361955: 181956: 201957: 201958: 141959: 241960: 181961: 301962: 161963: 221964: 161965: 171966: 331967: 291968: 161969: 401970: 301971: 251972: 151973: 191974: 241975: 171976: 321977: 261978: 251979: 241980: 311981: 311982: 161983: 211984: 361985: 231986: 191987: 361988: 181989: 221990: 171991: 71992: 71993: 171994: 131995: 31996: 161997: 121998: 191999: 142000: 72001: 142002: 132003: 122004: 132006: 82007: 162008: 112009: 102010: 282011: 82012: 342013: 82014: 22015: 202016: 152017: 122018: 212019: 242020: 82021: 62022: 122023: 192024: 92025: 542026: 281951195919671975198319911999200820162024
1,464 records at Morioka still stand. 2025 holds the most, with 54.
Standing records at Morioka by the year they were set
Year setStanding records
195127
195223
195318
195436
195518
195620
195720
195814
195924
196018
196130
196216
196322
196416
196517
196633
196729
196816
196940
197030
197125
197215
197319
197424
197517
197632
197726
197825
197924
198031
198131
198216
198321
198436
198523
198619
198736
198818
198922
199017
19917
19927
199317
199413
19953
199616
199712
199819
199914
20007
200114
200213
200312
200413
20068
200716
200811
200910
201028
20118
201234
20138
20142
201520
201615
201712
201821
201924
20208
20216
202212
202319
20249
202554
202628

All-Time Record Progression

8 new records
When Morioka set new all-time records 8 all-time records were set at Morioka between 29 July 2019 and 6 July 2026. Each dot is a new record. Record high minimum temperatureRecord high maximum temperatureRecord daily precipitation29 July 2019: Record high minimum temperature 25.2 C (77.4 F)21 August 2023: Record high minimum temperature 25.3 C (77.5 F)22 August 2023: Record high minimum temperature 25.5 C (77.9 F)23 August 2023: Record high minimum temperature 25.8 C (78.4 F)24 August 2023: Record high minimum temperature 26.6 C (79.9 F)3 August 2025: Record high maximum temperature 37.2 C (99.0 F)3 July 2026: Record daily precipitation 120.0 mm (4.7 in)6 July 2026: Record daily precipitation 186.0 mm (7.3 in)20202025
8 all-time records were set at Morioka between 29 July 2019 and 6 July 2026. Each dot is a new record.
When Morioka set new all-time records
DateKindDetail
2019-07-29Record high minimum temperatureRecord high minimum temperature 25.2 C (77.4 F)
2023-08-21Record high minimum temperatureRecord high minimum temperature 25.3 C (77.5 F)
2023-08-22Record high minimum temperatureRecord high minimum temperature 25.5 C (77.9 F)
2023-08-23Record high minimum temperatureRecord high minimum temperature 25.8 C (78.4 F)
2023-08-24Record high minimum temperatureRecord high minimum temperature 26.6 C (79.9 F)
2025-08-03Record high maximum temperatureRecord high maximum temperature 37.2 C (99.0 F)
2026-07-03Record daily precipitationRecord daily precipitation 120.0 mm (4.7 in)
2026-07-06Record daily precipitationRecord daily precipitation 186.0 mm (7.3 in)

Wettest Day of Each Month

Jul: 186.0 mm (7.3 in)
Record daily precipitation for each month at Morioka The wettest day on record for each calendar month at Morioka. The most was 186.0 mm (7.3 in) on 6 July 2026. 050100150200 Jan: 45.5 mm (1.8 in), 1 January 2011 Jan Feb: 58.0 mm (2.3 in), 27 February 1972 Feb Mar: 66.5 mm (2.6 in), 9 March 2018 Mar Apr: 72.0 mm (2.8 in), 20 April 1967 Apr May: 78.5 mm (3.1 in), 19 May 2018 May Jun: 103.0 mm (4.1 in), 17 June 1980 Jun Jul: 186.0 mm (7.3 in), 6 July 2026 Jul Aug: 151.0 mm (5.9 in), 16 August 2026 Aug Sep: 115.6 mm (4.6 in), 18 September 2007 Sep Oct: 100.5 mm (4.0 in), 14 October 1958 Oct Nov: 64.0 mm (2.5 in), 7 November 2012 Nov Dec: 54.6 mm (2.1 in), 23 December 2010 Dec
The wettest day on record for each calendar month at Morioka. The most was 186.0 mm (7.3 in) on 6 July 2026.
Record daily precipitation for each month at Morioka
MonthRecord daily precipitation (mm)Date
Jan45.5 mm (1.8 in)1 January 2011
Feb58.0 mm (2.3 in)27 February 1972
Mar66.5 mm (2.6 in)9 March 2018
Apr72.0 mm (2.8 in)20 April 1967
May78.5 mm (3.1 in)19 May 2018
Jun103.0 mm (4.1 in)17 June 1980
Jul186.0 mm (7.3 in)6 July 2026
Aug151.0 mm (5.9 in)16 August 2026
Sep115.6 mm (4.6 in)18 September 2007
Oct100.5 mm (4.0 in)14 October 1958
Nov64.0 mm (2.5 in)7 November 2012
Dec54.6 mm (2.1 in)23 December 2010

Period of Record Coverage

1951 to 2026
Days with data per year at Morioka 75 years of record at Morioka, 1951 to 2026. 13 years have data for under 90 percent of days and are left out of rankings: 1995, 1997, 2001, 2013, 2014, 2015, 2017, 2020 and others. 1951: 365 of 365 days1952: 366 of 366 days1953: 363 of 365 days1954: 365 of 365 days1955: 361 of 365 days1956: 363 of 366 days1957: 363 of 365 days1958: 364 of 365 days1959: 362 of 365 days1960: 363 of 366 days1961: 364 of 365 days1962: 363 of 365 days1963: 362 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 355 of 365 days1991: 346 of 365 days1992: 348 of 366 days1993: 350 of 365 days1994: 345 of 365 days1995: 316 of 365 days1996: 347 of 366 days1997: 322 of 365 days1998: 338 of 365 days1999: 331 of 365 days2000: 341 of 366 days2001: 301 of 365 days2002: 330 of 365 days2003: 344 of 365 days2004: 332 of 366 days2006: 345 of 365 days2007: 350 of 365 days2008: 357 of 366 days2009: 348 of 365 days2010: 351 of 365 days2011: 353 of 365 days2012: 357 of 366 days2013: 114 of 365 days2014: 2 of 365 days2015: 273 of 365 days2016: 332 of 366 days2017: 326 of 365 days2018: 333 of 365 days2019: 331 of 365 days2020: 74 of 366 days2021: 5 of 365 days2022: 147 of 365 days2023: 8 of 365 days2024: 3 of 366 days2025: 360 of 365 days2026: 277 of 365 days1960197019801990200020102020
75 years of record at Morioka, 1951 to 2026. 13 years have data for under 90 percent of days and are left out of rankings: 1995, 1997, 2001, 2013, 2014, 2015, 2017, 2020 and others.
Days with data per year at Morioka
YearDays with dataShare of yearComplete
1951365100%Yes
1952366100%Yes
195336399%Yes
1954365100%Yes
195536199%Yes
195636399%Yes
195736399%Yes
1958364100%Yes
195936299%Yes
196036399%Yes
1961364100%Yes
196236399%Yes
196336299%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
199035597%Yes
199134695%Yes
199234895%Yes
199335096%Yes
199434595%Yes
199531687%No
199634795%Yes
199732288%No
199833893%Yes
199933191%Yes
200034193%Yes
200130182%No
200233090%Yes
200334494%Yes
200433291%Yes
200634595%Yes
200735096%Yes
200835798%Yes
200934895%Yes
201035196%Yes
201135397%Yes
201235798%Yes
201311431%No
201421%No
201527375%No
201633291%Yes
201732689%No
201833391%Yes
201933191%Yes
20207420%No
202151%No
202214740%No
202382%No
202431%No
202536099%Yes
202627776%No

Latest Records

20
Latest records at Morioka
DateStationRecordValueBeat old record byOld record stoodSignificance
3 October 2026Morioka, JPdaily rain (Provisional)73.0 mm (2.9 in)28.7 mm (1.1 in)72 years51 of 100 (Notable)
28 September 2026Morioka, JPdaily high min (Provisional)17.6 C (63.7 F)0.1 C (0.2 F)0 years7 of 100 (Routine)
19 September 2026Morioka, JPdaily high min (Tie, Provisional)18.9 C (66.0 F)tie28 years3 of 100 (Routine)
18 September 2026Morioka, JPall-time rain (Provisional)191.0 mm (7.5 in)5.0 mm (0.20 in)0 years30 of 100 (Routine)
30 August 2026Morioka, JPdaily low max (Provisional)20.1 C (68.2 F)0.5 C (0.9 F)73 years30 of 100 (Routine)
16 August 2026Morioka, JPmonthly rain151.0 mm (5.9 in)33.0 mm (1.3 in)47 years47 of 100 (Notable)
7 August 2026Morioka, JPdaily high min24.9 C (76.8 F)0.7 C (1.3 F)40 years21 of 100 (Routine)
22 July 2026Morioka, JPdaily high min23.9 C (75.0 F)0.8 C (1.4 F)0 years9 of 100 (Routine)
21 July 2026Morioka, JPdaily high min23.4 C (74.1 F)0.2 C (0.4 F)0 years7 of 100 (Routine)
20 July 2026Morioka, JPdaily high min25.0 C (77.0 F)0.8 C (1.4 F)59 years26 of 100 (Routine)
19 July 2026Morioka, JPdaily high min24.6 C (76.3 F)1.4 C (2.5 F)0 years11 of 100 (Routine)
18 July 2026Morioka, JPdaily high min23.4 C (74.1 F)0.4 C (0.7 F)0 years8 of 100 (Routine)
17 July 2026Morioka, JPdaily high min23.8 C (74.8 F)0.3 C (0.5 F)59 years25 of 100 (Routine)
15 July 2026Morioka, JPdaily high min24.8 C (76.6 F)1.7 C (3.1 F)0 years12 of 100 (Routine)
13 July 2026Morioka, JPdaily high min22.9 C (73.2 F)0.5 C (0.9 F)44 years21 of 100 (Routine)
6 July 2026Morioka, JPall-time rain186.0 mm (7.3 in)66.0 mm (2.6 in)0 years67 of 100 (Major)
3 July 2026Morioka, JPall-time rain120.0 mm (4.7 in)2.0 mm (0.08 in)46 years42 of 100 (Notable)
30 June 2026Morioka, JPdaily rain (Tie)61.0 mm (2.4 in)tie1 year1 of 100 (Routine)
17 June 2026Morioka, JPdaily high max30.9 C (87.6 F)1.3 C (2.3 F)72 years31 of 100 (Routine)
3 June 2026Morioka, JPdaily high min17.4 C (63.3 F)0.3 C (0.5 F)64 years26 of 100 (Routine)

Climate Trend

40 complete years, 1951 to 2025
Annual mean temperature at Morioka as warming stripes, 1951 to 2025 One stripe for each of 40 complete years at Morioka, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 10.1 C (50.2 F); red stripes are warmer. The coolest year was 1974, at 9.0 C (48.3 F), and the warmest was 2025, at 12.5 C (54.5 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1951: 10.0 C, -0.2 C from the station mean1952: 9.8 C, -0.4 C from the station mean1953: 10.1 C, -0.1 C from the station mean1954: 10.2 C, +0.1 C from the station mean1955: 10.8 C, +0.7 C from the station mean1956: 9.9 C, -0.2 C from the station mean1957: 10.1 C, 0.0 C from the station mean1958: 10.4 C, +0.2 C from the station mean1959: 10.8 C, +0.7 C from the station mean1960: 10.4 C, +0.3 C from the station mean1961: 10.8 C, +0.7 C from the station mean1962: 10.5 C, +0.4 C from the station mean1963: 10.5 C, +0.4 C from the station mean1964: 10.0 C, -0.1 C from the station mean1965: 9.4 C, -0.7 C from the station mean1966: 10.0 C, -0.2 C from the station mean1967: 10.2 C, +0.1 C from the station mean1968: 10.4 C, +0.2 C from the station mean1969: 9.7 C, -0.5 C from the station mean1970: 9.8 C, -0.3 C from the station mean1971: 9.8 C, -0.4 C from the station mean1972: 10.5 C, +0.4 C from the station mean1973: 10.2 C, +0.1 C from the station mean1974: 9.0 C, -1.1 C from the station mean1975: 10.1 C, -0.1 C from the station mean1976: 9.4 C, -0.8 C from the station mean1977: 9.9 C, -0.2 C from the station mean1978: 10.4 C, +0.2 C from the station mean1979: 10.8 C, +0.6 C from the station mean1980: 9.4 C, -0.7 C from the station mean1981: 9.2 C, -0.9 C from the station mean1982: 10.4 C, +0.2 C from the station mean1983: 9.8 C, -0.3 C from the station mean1984: 9.3 C, -0.8 C from the station mean1985: 10.1 C, -0.1 C from the station mean1986: 9.5 C, -0.6 C from the station mean1987: 10.3 C, +0.2 C from the station mean1988: 9.7 C, -0.4 C from the station mean1989: 11.1 C, +1.0 C from the station mean2025: 12.5 C, +2.4 C from the station mean19511960197019801990200020102020
One stripe for each of 40 complete years at Morioka, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 10.1 C (50.2 F); red stripes are warmer. The coolest year was 1974, at 9.0 C (48.3 F), and the warmest was 2025, at 12.5 C (54.5 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Morioka as warming stripes, 1951 to 2025
YearAnnual mean temperatureDifference from the station mean
195110.0 C-0.16 C
19529.8 C-0.36 C
195310.1 C-0.05 C
195410.2 C+0.06 C
195510.8 C+0.70 C
19569.9 C-0.18 C
195710.1 C-0.04 C
195810.4 C+0.23 C
195910.8 C+0.66 C
196010.4 C+0.27 C
196110.8 C+0.71 C
196210.5 C+0.42 C
196310.5 C+0.38 C
196410.0 C-0.13 C
19659.4 C-0.70 C
196610.0 C-0.15 C
196710.2 C+0.06 C
196810.4 C+0.25 C
19699.7 C-0.46 C
19709.8 C-0.32 C
19719.8 C-0.35 C
197210.5 C+0.37 C
197310.2 C+0.11 C
19749.0 C-1.09 C
197510.1 C-0.05 C
19769.4 C-0.76 C
19779.9 C-0.22 C
197810.4 C+0.23 C
197910.8 C+0.64 C
19809.4 C-0.72 C
19819.2 C-0.89 C
198210.4 C+0.25 C
19839.8 C-0.30 C
19849.3 C-0.83 C
198510.1 C-0.07 C
19869.5 C-0.59 C
198710.3 C+0.17 C
19889.7 C-0.38 C
198911.1 C+0.97 C
202512.5 C+2.38 C

The fitted trend in annual mean temperature here over 1951 to 2025 is 0.11 C (-0.03 to 0.25) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Morioka
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.11 C (-0.03 to 0.25) per decade0.2 F (-0.1 to 0.4) per decade1951 to 202540Not clearly different from zero
Mean daily maximum0.02 C (-0.11 to 0.16) per decade0.04 F (-0.20 to 0.28) per decade1951 to 202540Not clearly different from zero
Mean daily minimum0.19 C (0.04 to 0.35) per decade0.3 F (0.1 to 0.6) per decade1951 to 202540Rise

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 2026
Yearly extremes at Morioka: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)202534.0 C (93.2 F)75
Coldest night (TNn)-17.2 C (1.0 F)1967-12.8 C (9.0 F)75
Wettest day (Rx1day)191.0 mm (7.5 in)202672.0 mm (2.8 in)75
Wettest five days (Rx5day)402.0 mm (15.8 in)2026115.1 mm (4.5 in)75
Longest dry spell (CDD)26 days197813 days73

Hottest day (TXx)

Hottest day (TXx) at Morioka by year The hottest day of the year at Morioka, 1951 to 2026. The record is 37.2 C (99.0 F) in 2025, marked on the chart; the median year is 34.0 C (93.2 F). 20253035401960198020002020Record: 37.2 C (99.0 F) in 2025
The hottest day of the year at Morioka, 1951 to 2026. The record is 37.2 C (99.0 F) in 2025, marked on the chart; the median year is 34.0 C (93.2 F).
Hottest day (TXx) at Morioka by year
YearHottest day (TXx)
195134.4 C (93.9 F)
195233.6 C (92.5 F)
195333.8 C (92.8 F)
195434.1 C (93.4 F)
195534.2 C (93.6 F)
195633.8 C (92.8 F)
195733.8 C (92.8 F)
195832.1 C (89.8 F)
195933.1 C (91.6 F)
196034.3 C (93.7 F)
196134.0 C (93.2 F)
196234.8 C (94.6 F)
196334.0 C (93.2 F)
196433.5 C (92.3 F)
196533.3 C (91.9 F)
196633.5 C (92.3 F)
196734.5 C (94.1 F)
196831.8 C (89.2 F)
196933.9 C (93.0 F)
197035.7 C (96.3 F)
197133.4 C (92.1 F)
197233.2 C (91.8 F)
197334.0 C (93.2 F)
197432.1 C (89.8 F)
197534.3 C (93.7 F)
197634.5 C (94.1 F)
197733.3 C (91.9 F)
197836.6 C (97.9 F)
197932.5 C (90.5 F)
198032.9 C (91.2 F)
198134.8 C (94.6 F)
198233.4 C (92.1 F)
198334.0 C (93.2 F)
198435.0 C (95.0 F)
198535.7 C (96.3 F)
198635.1 C (95.2 F)
198733.7 C (92.7 F)
198833.0 C (91.4 F)
198933.9 C (93.0 F)
199033.5 C (92.3 F)
199132.5 C (90.5 F)
199233.0 C (91.4 F)
199332.2 C (90.0 F)
199436.3 C (97.3 F)
199534.1 C (93.4 F)
199634.4 C (93.9 F)
199733.5 C (92.3 F)
199831.9 C (89.4 F)
199935.3 C (95.5 F)
200036.2 C (97.2 F)
200133.9 C (93.0 F)
200232.8 C (91.0 F)
200331.2 C (88.2 F)
200434.4 C (93.9 F)
200635.2 C (95.4 F)
200736.4 C (97.5 F)
200833.9 C (93.0 F)
200932.3 C (90.1 F)
201035.8 C (96.4 F)
201134.1 C (93.4 F)
201235.4 C (95.7 F)
201326.4 C (79.5 F)
201434.6 C (94.3 F)
201535.5 C (95.9 F)
201634.6 C (94.3 F)
201735.1 C (95.2 F)
201836.3 C (97.3 F)
201935.9 C (96.6 F)
202020.9 C (69.6 F)
202125.6 C (78.1 F)
202234.8 C (94.6 F)
202329.7 C (85.5 F)
202425.4 C (77.7 F)
202537.2 C (99.0 F)
202634.5 C (94.1 F)

Coldest night (TNn)

Coldest night (TNn) at Morioka by year The coldest night of the year at Morioka, 1951 to 2026. The record is -17.2 C (1.0 F) in 1967, marked on the chart; the median year is -12.8 C (9.0 F). -17.5-15-12.5-10-7.51960198020002020Record: -17.2 C (1.0 F) in 1967
The coldest night of the year at Morioka, 1951 to 2026. The record is -17.2 C (1.0 F) in 1967, marked on the chart; the median year is -12.8 C (9.0 F).
Coldest night (TNn) at Morioka by year
YearColdest night (TNn)
1951-14.4 C (6.1 F)
1952-15.5 C (4.1 F)
1953-13.7 C (7.3 F)
1954-13.9 C (7.0 F)
1955-13.0 C (8.6 F)
1956-14.9 C (5.2 F)
1957-13.3 C (8.1 F)
1958-13.0 C (8.6 F)
1959-15.2 C (4.6 F)
1960-16.1 C (3.0 F)
1961-15.0 C (5.0 F)
1962-11.3 C (11.7 F)
1963-12.6 C (9.3 F)
1964-12.2 C (10.0 F)
1965-12.3 C (9.9 F)
1966-13.6 C (7.5 F)
1967-17.2 C (1.0 F)
1968-11.9 C (10.6 F)
1969-14.4 C (6.1 F)
1970-13.1 C (8.4 F)
1971-13.0 C (8.6 F)
1972-11.5 C (11.3 F)
1973-11.5 C (11.3 F)
1974-13.6 C (7.5 F)
1975-13.8 C (7.2 F)
1976-14.7 C (5.5 F)
1977-16.2 C (2.8 F)
1978-14.0 C (6.8 F)
1979-12.7 C (9.1 F)
1980-13.6 C (7.5 F)
1981-14.9 C (5.2 F)
1982-13.8 C (7.2 F)
1983-12.6 C (9.3 F)
1984-14.4 C (6.1 F)
1985-16.2 C (2.8 F)
1986-14.8 C (5.4 F)
1987-12.8 C (9.0 F)
1988-14.4 C (6.1 F)
1989-11.4 C (11.5 F)
1990-14.6 C (5.7 F)
1991-11.4 C (11.5 F)
1992-9.7 C (14.5 F)
1993-10.3 C (13.5 F)
1994-13.2 C (8.2 F)
1995-12.1 C (10.2 F)
1996-11.3 C (11.7 F)
1997-8.9 C (16.0 F)
1998-11.7 C (10.9 F)
1999-12.3 C (9.9 F)
2000-12.8 C (9.0 F)
2001-14.3 C (6.3 F)
2002-13.7 C (7.3 F)
2003-13.8 C (7.2 F)
2004-9.7 C (14.5 F)
2006-13.8 C (7.2 F)
2007-8.0 C (17.6 F)
2008-11.4 C (11.5 F)
2009-9.6 C (14.7 F)
2010-12.4 C (9.7 F)
2011-11.7 C (10.9 F)
2012-12.7 C (9.1 F)
2013-11.8 C (10.8 F)
2014-11.5 C (11.3 F)
2015-9.8 C (14.4 F)
2016-8.8 C (16.2 F)
2017-13.0 C (8.6 F)
2018-12.2 C (10.0 F)
2019-9.0 C (15.8 F)
2020-9.9 C (14.2 F)
2021-12.9 C (8.8 F)
2022-11.2 C (11.8 F)
2023-11.4 C (11.5 F)
2024-11.4 C (11.5 F)
2025-9.2 C (15.4 F)
2026-11.1 C (12.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Morioka by year The wettest day of the year at Morioka, 1951 to 2026. The record is 191.0 mm (7.5 in) in 2026, marked on the chart; the median year is 72.0 mm (2.8 in). 0501001502001960198020002020Record: 191.0 mm (7.5 in) in 2026
The wettest day of the year at Morioka, 1951 to 2026. The record is 191.0 mm (7.5 in) in 2026, marked on the chart; the median year is 72.0 mm (2.8 in).
Wettest day (Rx1day) at Morioka by year
YearWettest day (Rx1day)
195163.6 mm (2.5 in)
195253.7 mm (2.1 in)
195389.9 mm (3.5 in)
195485.1 mm (3.4 in)
195557.5 mm (2.3 in)
195659.1 mm (2.3 in)
195785.6 mm (3.4 in)
1958100.5 mm (4.0 in)
1959104.9 mm (4.1 in)
196053.9 mm (2.1 in)
196146.1 mm (1.8 in)
196274.0 mm (2.9 in)
196372.9 mm (2.9 in)
196464.1 mm (2.5 in)
196588.6 mm (3.5 in)
196670.8 mm (2.8 in)
196772.0 mm (2.8 in)
196869.5 mm (2.7 in)
196972.5 mm (2.9 in)
1970101.5 mm (4.0 in)
197177.5 mm (3.1 in)
197263.0 mm (2.5 in)
197348.5 mm (1.9 in)
197476.0 mm (3.0 in)
197571.5 mm (2.8 in)
197649.0 mm (1.9 in)
197776.0 mm (3.0 in)
197860.5 mm (2.4 in)
1979118.0 mm (4.6 in)
1980103.0 mm (4.1 in)
198158.5 mm (2.3 in)
1982102.5 mm (4.0 in)
198364.5 mm (2.5 in)
198462.0 mm (2.4 in)
198569.5 mm (2.7 in)
1986109.5 mm (4.3 in)
198799.0 mm (3.9 in)
198879.0 mm (3.1 in)
198994.0 mm (3.7 in)
199097.0 mm (3.8 in)
199171.9 mm (2.8 in)
199243.4 mm (1.7 in)
199359.9 mm (2.4 in)
199456.9 mm (2.2 in)
199594.0 mm (3.7 in)
199639.1 mm (1.5 in)
199761.0 mm (2.4 in)
199862.0 mm (2.4 in)
199962.7 mm (2.5 in)
200077.0 mm (3.0 in)
200156.1 mm (2.2 in)
2002101.9 mm (4.0 in)
200367.6 mm (2.7 in)
200496.0 mm (3.8 in)
200659.4 mm (2.3 in)
2007115.6 mm (4.6 in)
200834.5 mm (1.4 in)
200949.5 mm (1.9 in)
201075.4 mm (3.0 in)
201191.4 mm (3.6 in)
201264.0 mm (2.5 in)
201396.0 mm (3.8 in)
2014102.1 mm (4.0 in)
201558.9 mm (2.3 in)
201676.5 mm (3.0 in)
2017114.6 mm (4.5 in)
201878.5 mm (3.1 in)
201953.1 mm (2.1 in)
2020109.0 mm (4.3 in)
202159.9 mm (2.4 in)
202271.1 mm (2.8 in)
2023110.0 mm (4.3 in)
2024116.1 mm (4.6 in)
202517.0 mm (0.7 in)
2026191.0 mm (7.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Morioka by year The wettest five days of the year at Morioka, 1951 to 2026. The record is 402.0 mm (15.8 in) in 2026, marked on the chart; the median year is 115.1 mm (4.5 in). 01002003004005001960198020002020Record: 402.0 mm (15.8 in) in 2026
The wettest five days of the year at Morioka, 1951 to 2026. The record is 402.0 mm (15.8 in) in 2026, marked on the chart; the median year is 115.1 mm (4.5 in).
Wettest five days (Rx5day) at Morioka by year
YearWettest five days (Rx5day)
1951105.6 mm (4.2 in)
195285.2 mm (3.4 in)
1953137.1 mm (5.4 in)
195495.3 mm (3.8 in)
1955112.7 mm (4.4 in)
1956112.9 mm (4.4 in)
1957132.6 mm (5.2 in)
1958161.8 mm (6.4 in)
1959123.6 mm (4.9 in)
196094.0 mm (3.7 in)
196193.8 mm (3.7 in)
1962120.1 mm (4.7 in)
1963103.7 mm (4.1 in)
1964108.4 mm (4.3 in)
1965126.4 mm (5.0 in)
1966160.7 mm (6.3 in)
1967128.2 mm (5.0 in)
1968109.0 mm (4.3 in)
1969194.5 mm (7.7 in)
1970156.5 mm (6.2 in)
1971108.5 mm (4.3 in)
1972102.5 mm (4.0 in)
1973101.0 mm (4.0 in)
1974129.5 mm (5.1 in)
1975148.5 mm (5.8 in)
1976100.0 mm (3.9 in)
197798.0 mm (3.9 in)
197897.0 mm (3.8 in)
1979163.5 mm (6.4 in)
1980103.5 mm (4.1 in)
1981142.0 mm (5.6 in)
1982161.5 mm (6.4 in)
198399.0 mm (3.9 in)
1984116.5 mm (4.6 in)
198582.5 mm (3.2 in)
1986121.5 mm (4.8 in)
1987176.0 mm (6.9 in)
1988210.0 mm (8.3 in)
1989189.5 mm (7.5 in)
199055.5 mm (2.2 in)
199175.2 mm (3.0 in)
19924.1 mm (0.16 in)
1993113.6 mm (4.5 in)
199480.8 mm (3.2 in)
1995104.9 mm (4.1 in)
199642.4 mm (1.7 in)
19978.4 mm (0.33 in)
1998179.9 mm (7.1 in)
1999104.5 mm (4.1 in)
2000124.4 mm (4.9 in)
200156.7 mm (2.2 in)
2002206.3 mm (8.1 in)
2003115.1 mm (4.5 in)
2004139.9 mm (5.5 in)
2006105.8 mm (4.2 in)
2007206.0 mm (8.1 in)
200890.8 mm (3.6 in)
200988.6 mm (3.5 in)
2010159.9 mm (6.3 in)
2011160.0 mm (6.3 in)
201275.2 mm (3.0 in)
2013146.3 mm (5.8 in)
2014120.1 mm (4.7 in)
201592.9 mm (3.7 in)
2016121.9 mm (4.8 in)
2017151.7 mm (6.0 in)
2018116.1 mm (4.6 in)
2019102.7 mm (4.0 in)
2020136.7 mm (5.4 in)
202184.9 mm (3.3 in)
2022186.2 mm (7.3 in)
2023206.5 mm (8.1 in)
2024165.6 mm (6.5 in)
202518.5 mm (0.7 in)
2026402.0 mm (15.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Morioka by year The longest dry spell of the year at Morioka, 1951 to 2026. The record is 26 days in 1978, marked on the chart; the median year is 13 days. 01020301960198020002020Record: 26 days in 1978
The longest dry spell of the year at Morioka, 1951 to 2026. The record is 26 days in 1978, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Morioka by year
YearLongest dry spell (CDD)
195116 days
195218 days
195313 days
195412 days
195516 days
195614 days
195714 days
195813 days
195911 days
196013 days
196119 days
196213 days
196311 days
196412 days
196513 days
19668 days
196712 days
19689 days
196915 days
197016 days
197113 days
197219 days
197318 days
19749 days
197515 days
197613 days
197714 days
197826 days
197918 days
198014 days
198113 days
198219 days
198311 days
198412 days
198512 days
198618 days
198712 days
198816 days
198917 days
19904 days
19914 days
19924 days
19933 days
19945 days
19954 days
19965 days
19976 days
19986 days
19999 days
2000n/a
2001n/a
20024 days
20035 days
200413 days
200618 days
200717 days
200818 days
200917 days
201013 days
201118 days
201213 days
201310 days
201422 days
201514 days
201612 days
20179 days
201812 days
201917 days
202011 days
20218 days
202218 days
202313 days
202416 days
20258 days
202617 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

40 years with a frost

Across 40 years with a frost, the median last spring frost at Morioka falls on 22 April and the median first autumn frost on 26 October, which leaves a median of 188 days between them.

Fitted over all years, the growing season changes by +5.0 days per decade at this station.

Frost dates and growing season at Morioka
MeasureMedian, all yearsEarliest periodRecent period (1961 to 2025)Recent against earliestFitted trend
Last spring frost22 Apriln/a20 Apriln/a-3.8 days per decade
First autumn frost26 Octobern/a28 Octobern/a+1.2 days per decade
Growing days188 daysn/a191 daysn/a+5.0 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 2024

A day with at least 76.3 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 135.2 mm (5.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Morioka: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years76.3 mm (3.0 in)
5 years95.9 mm (3.8 in)
10 years107.1 mm (4.2 in)
25 years119.7 mm (4.7 in)
50 years127.9 mm (5.0 in)
100 years135.2 mm (5.3 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: 118.0 mm (4.6 in) in 1979; 116.1 mm (4.6 in) in 2024; 115.6 mm (4.6 in) in 2007.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

  • Data for Morioka standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Morioka threshold days by year: CSV or JSON. Field meanings are on the data page.

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 (2026-10-15).