Built 2026-10-17 (17 October 2026)

Owase Weather Records (JA000047663)

Record envelope, standing records and threshold days for Owase (JA000047663), Japan, with 76 years of record.

Key Facts for Owase

  • Owase (JA000047663) is a weather station in Japan at 34.07 latitude and 136.20 longitude, 27 m (89 ft) above sea level.
  • The station reports from 1951 to 2026, 76 years of record.
  • 1,464 records set at Owase still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Owase set a daily record high minimum temperature of 22.4 C (72.3 F) on 27 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Japan, 34.07 latitude, 136.20 longitude.
  • Elevation: 27 m (89 ft).
  • Period of record: 1951 to 2026, 76 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

7 days at or beyond a record
Daily record high and record low at Owase, with 2026 drawn through them The band shows the record high and record low for each calendar day at Owase. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -10010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Owase. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Owase, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan22.4 C (72.3 F)-6.9 C (19.6 F)18.5 C (65.3 F)-1.3 C (29.7 F)
Feb27.1 C (80.8 F)-5.4 C (22.3 F)19.4 C (66.9 F)-0.7 C (30.7 F)
Mar26.5 C (79.7 F)-4.1 C (24.6 F)20.0 C (68.0 F)0.2 C (32.4 F)
Apr30.3 C (86.5 F)-1.2 C (29.8 F)26.9 C (80.4 F)6.0 C (42.8 F)
May33.1 C (91.6 F)4.1 C (39.4 F)30.4 C (86.7 F)10.3 C (50.5 F)
Jun36.7 C (98.1 F)10.0 C (50.0 F)34.4 C (93.9 F)16.2 C (61.2 F)
Jul38.6 C (101.5 F)13.8 C (56.8 F)37.8 C (100.0 F)19.6 C (67.3 F)
Aug38.8 C (101.8 F)14.7 C (58.5 F)36.8 C (98.2 F)21.9 C (71.4 F)
Sep36.6 C (97.9 F)9.5 C (49.1 F)33.0 C (91.4 F)19.1 C (66.4 F)
Oct31.9 C (89.4 F)4.3 C (39.7 F)29.9 C (85.8 F)14.8 C (58.6 F)
Nov29.8 C (85.6 F)-0.9 C (30.4 F)n/an/a
Dec25.6 C (78.1 F)-4.0 C (24.8 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Owase by the year they were set 1,464 records at Owase still stand. 2025 holds the most, with 61. 0204060801951: 261952: 181953: 271954: 351955: 171956: 341957: 361958: 291959: 241960: 251961: 251962: 161963: 321964: 221965: 281966: 261967: 281968: 321969: 331970: 291971: 211972: 291973: 281974: 151975: 131976: 311977: 311978: 101979: 221980: 241981: 281982: 251983: 211984: 331985: 161986: 101987: 151988: 251989: 191990: 151991: 121992: 91993: 191994: 71995: 91996: 71997: 141998: 131999: 92000: 82001: 82002: 132003: 72004: 172006: 82007: 62008: 82009: 102010: 152011: 162012: 22013: 202014: 92015: 62016: 182017: 62018: 122019: 152020: 212021: 192022: 122023: 172024: 272025: 612026: 311951195919671975198319911999200820162024
1,464 records at Owase still stand. 2025 holds the most, with 61.
Standing records at Owase by the year they were set
Year setStanding records
195126
195218
195327
195435
195517
195634
195736
195829
195924
196025
196125
196216
196332
196422
196528
196626
196728
196832
196933
197029
197121
197229
197328
197415
197513
197631
197731
197810
197922
198024
198128
198225
198321
198433
198516
198610
198715
198825
198919
199015
199112
19929
199319
19947
19959
19967
199714
199813
19999
20008
20018
200213
20037
200417
20068
20076
20088
200910
201015
201116
20122
201320
20149
20156
201618
20176
201812
201915
202021
202119
202212
202317
202427
202561
202631

All-Time Record Progression

11 new records
When Owase set new all-time records 11 all-time records were set at Owase between 26 February 1981 and 23 July 2026. Each dot is a new record. Record low maximum temperatureRecord high minimum temperatureRecord high maximum temperature26 February 1981: Record low maximum temperature 0.4 C (32.7 F)2 August 1983: Record high minimum temperature 26.3 C (79.3 F)18 July 1990: Record high maximum temperature 38.0 C (100.4 F)27 August 1995: Record high maximum temperature 38.4 C (101.1 F)23 August 2013: Record high minimum temperature 26.6 C (79.9 F)3 July 2016: Record high maximum temperature 38.6 C (101.5 F)13 August 2019: Record high minimum temperature 27.2 C (81.0 F)16 August 2024: Record high maximum temperature 38.8 C (101.8 F)5 August 2025: Record high minimum temperature 27.7 C (81.9 F)6 August 2025: Record high minimum temperature 28.2 C (82.8 F)23 July 2026: Record high minimum temperature 28.4 C (83.1 F)1990200020102020
11 all-time records were set at Owase between 26 February 1981 and 23 July 2026. Each dot is a new record.
When Owase set new all-time records
DateKindDetail
1981-02-26Record low maximum temperatureRecord low maximum temperature 0.4 C (32.7 F)
1983-08-02Record high minimum temperatureRecord high minimum temperature 26.3 C (79.3 F)
1990-07-18Record high maximum temperatureRecord high maximum temperature 38.0 C (100.4 F)
1995-08-27Record high maximum temperatureRecord high maximum temperature 38.4 C (101.1 F)
2013-08-23Record high minimum temperatureRecord high minimum temperature 26.6 C (79.9 F)
2016-07-03Record high maximum temperatureRecord high maximum temperature 38.6 C (101.5 F)
2019-08-13Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
2024-08-16Record high maximum temperatureRecord high maximum temperature 38.8 C (101.8 F)
2025-08-05Record high minimum temperatureRecord high minimum temperature 27.7 C (81.9 F)
2025-08-06Record high minimum temperatureRecord high minimum temperature 28.2 C (82.8 F)
2026-07-23Record high minimum temperatureRecord high minimum temperature 28.4 C (83.1 F)

Wettest Day of Each Month

Sep: 806.0 mm (31.7 in)
Record daily precipitation for each month at Owase The wettest day on record for each calendar month at Owase. The most was 806.0 mm (31.7 in) on 26 September 1968. 02505007501000 Jan: 265.9 mm (10.5 in), 21 January 2002 Jan Feb: 246.3 mm (9.7 in), 28 February 1951 Feb Mar: 168.9 mm (6.6 in), 8 March 2018 Mar Apr: 486.0 mm (19.1 in), 25 April 1970 Apr May: 238.0 mm (9.4 in), 29 May 1998 May Jun: 432.4 mm (17.0 in), 26 June 1961 Jun Jul: 419.0 mm (16.5 in), 7 July 1974 Jul Aug: 661.5 mm (26.0 in), 25 August 1977 Aug Sep: 806.0 mm (31.7 in), 26 September 1968 Sep Oct: 521.4 mm (20.5 in), 7 October 1960 Oct Nov: 463.0 mm (18.2 in), 10 November 1979 Nov Dec: 334.0 mm (13.1 in), 11 December 1984 Dec
The wettest day on record for each calendar month at Owase. The most was 806.0 mm (31.7 in) on 26 September 1968.
Record daily precipitation for each month at Owase
MonthRecord daily precipitation (mm)Date
Jan265.9 mm (10.5 in)21 January 2002
Feb246.3 mm (9.7 in)28 February 1951
Mar168.9 mm (6.6 in)8 March 2018
Apr486.0 mm (19.1 in)25 April 1970
May238.0 mm (9.4 in)29 May 1998
Jun432.4 mm (17.0 in)26 June 1961
Jul419.0 mm (16.5 in)7 July 1974
Aug661.5 mm (26.0 in)25 August 1977
Sep806.0 mm (31.7 in)26 September 1968
Oct521.4 mm (20.5 in)7 October 1960
Nov463.0 mm (18.2 in)10 November 1979
Dec334.0 mm (13.1 in)11 December 1984

Period of Record Coverage

1951 to 2026
Days with data per year at Owase 75 years of record at Owase, 1951 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 2003, 2011, 2012, 2013, 2020, 2023, 2024, 2026. 1951: 365 of 365 days1952: 366 of 366 days1953: 364 of 365 days1954: 365 of 365 days1955: 361 of 365 days1956: 365 of 366 days1957: 361 of 365 days1958: 365 of 365 days1959: 364 of 365 days1960: 365 of 366 days1961: 364 of 365 days1962: 363 of 365 days1963: 363 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: 353 of 365 days1991: 337 of 365 days1992: 341 of 366 days1993: 333 of 365 days1994: 347 of 365 days1995: 342 of 365 days1996: 345 of 366 days1997: 340 of 365 days1998: 335 of 365 days1999: 335 of 365 days2000: 341 of 366 days2001: 343 of 365 days2002: 343 of 365 days2003: 323 of 365 days2004: 344 of 366 days2006: 332 of 365 days2007: 354 of 365 days2008: 344 of 366 days2009: 342 of 365 days2010: 332 of 365 days2011: 321 of 365 days2012: 252 of 366 days2013: 302 of 365 days2014: 348 of 365 days2015: 351 of 365 days2016: 339 of 366 days2017: 348 of 365 days2018: 339 of 365 days2019: 337 of 365 days2020: 317 of 366 days2021: 333 of 365 days2022: 337 of 365 days2023: 261 of 365 days2024: 285 of 366 days2025: 356 of 365 days2026: 275 of 365 days1960197019801990200020102020
75 years of record at Owase, 1951 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 2003, 2011, 2012, 2013, 2020, 2023, 2024, 2026.
Days with data per year at Owase
YearDays with dataShare of yearComplete
1951365100%Yes
1952366100%Yes
1953364100%Yes
1954365100%Yes
195536199%Yes
1956365100%Yes
195736199%Yes
1958365100%Yes
1959364100%Yes
1960365100%Yes
1961364100%Yes
196236399%Yes
196336399%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
199035397%Yes
199133792%Yes
199234193%Yes
199333391%Yes
199434795%Yes
199534294%Yes
199634594%Yes
199734093%Yes
199833592%Yes
199933592%Yes
200034193%Yes
200134394%Yes
200234394%Yes
200332388%No
200434494%Yes
200633291%Yes
200735497%Yes
200834494%Yes
200934294%Yes
201033291%Yes
201132188%No
201225269%No
201330283%No
201434895%Yes
201535196%Yes
201633993%Yes
201734895%Yes
201833993%Yes
201933792%Yes
202031787%No
202133391%Yes
202233792%Yes
202326172%No
202428578%No
202535698%Yes
202627575%No

Latest Records

20
Latest records at Owase
DateStationRecordValueBeat old record byOld record stoodSignificance
27 September 2026Owase, JPdaily high min (Provisional)22.4 C (72.3 F)0.6 C (1.1 F)9 years11 of 100 (Routine)
25 September 2026Owase, JPdaily high min (Provisional)22.4 C (72.3 F)0.2 C (0.4 F)72 years28 of 100 (Routine)
22 September 2026Owase, JPdaily high max (Provisional)31.8 C (89.2 F)0.1 C (0.2 F)16 years11 of 100 (Routine)
21 September 2026Owase, JPdaily high max (Tie, Provisional)33.0 C (91.4 F)tie21 years3 of 100 (Routine)
31 August 2026Owase, JPdaily high min (Tie, Provisional)25.9 C (78.6 F)tie12 years2 of 100 (Routine)
27 August 2026Owase, JPdaily high min (Provisional)26.1 C (79.0 F)1.6 C (2.9 F)0 years17 of 100 (Routine)
2 August 2026Owase, JPdaily high min27.9 C (82.2 F)1.6 C (2.9 F)43 years29 of 100 (Routine)
2 August 2026Owase, JPdaily high max36.8 C (98.2 F)0.6 C (1.1 F)28 years17 of 100 (Routine)
1 August 2026Owase, JPdaily high min27.9 C (82.2 F)2.4 C (4.3 F)7 years24 of 100 (Routine)
31 July 2026Owase, JPdaily high min26.8 C (80.2 F)1.4 C (2.5 F)35 years24 of 100 (Routine)
30 July 2026Owase, JPdaily high min26.8 C (80.2 F)0.9 C (1.6 F)1 year12 of 100 (Routine)
29 July 2026Owase, JPdaily high min26.9 C (80.4 F)1.6 C (2.9 F)11 years19 of 100 (Routine)
27 July 2026Owase, JPdaily high min25.6 C (78.1 F)0.2 C (0.4 F)3 years8 of 100 (Routine)
26 July 2026Owase, JPdaily high min27.1 C (80.8 F)1.4 C (2.5 F)3 years14 of 100 (Routine)
25 July 2026Owase, JPdaily high max37.5 C (99.5 F)1.5 C (2.7 F)35 years21 of 100 (Routine)
25 July 2026Owase, JPdaily high min27.6 C (81.7 F)2.2 C (4.0 F)8 years21 of 100 (Routine)
24 July 2026Owase, JPdaily high min27.4 C (81.3 F)2.1 C (3.8 F)24 years25 of 100 (Routine)
23 July 2026Owase, JPall-time high min28.4 C (83.1 F)0.2 C (0.4 F)0 years28 of 100 (Routine)
22 July 2026Owase, JPmonthly high min27.9 C (82.2 F)1.0 C (1.8 F)1 year22 of 100 (Routine)
19 July 2026Owase, JPdaily high min25.4 C (77.7 F)0.5 C (0.9 F)21 years15 of 100 (Routine)

Climate Trend

40 complete years, 1951 to 2025
Annual mean temperature at Owase as warming stripes, 1951 to 2025 One stripe for each of 40 complete years at Owase, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 15.7 C (60.3 F); red stripes are warmer. The coolest year was 1965, at 14.9 C (58.9 F), and the warmest was 2025, at 17.9 C (64.1 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1951: 15.4 C, -0.4 C from the station mean1952: 15.5 C, -0.2 C from the station mean1953: 15.7 C, -0.1 C from the station mean1954: 15.9 C, +0.2 C from the station mean1955: 16.2 C, +0.5 C from the station mean1956: 15.5 C, -0.3 C from the station mean1957: 15.3 C, -0.5 C from the station mean1958: 15.9 C, +0.1 C from the station mean1959: 16.6 C, +0.9 C from the station mean1960: 16.3 C, +0.6 C from the station mean1961: 16.5 C, +0.7 C from the station mean1962: 15.6 C, -0.1 C from the station mean1963: 15.4 C, -0.3 C from the station mean1964: 15.8 C, 0.0 C from the station mean1965: 14.9 C, -0.8 C from the station mean1966: 15.5 C, -0.2 C from the station mean1967: 15.5 C, -0.2 C from the station mean1968: 15.1 C, -0.6 C from the station mean1969: 15.5 C, -0.3 C from the station mean1970: 15.1 C, -0.7 C from the station mean1971: 15.3 C, -0.5 C from the station mean1972: 15.7 C, -0.1 C from the station mean1973: 15.4 C, -0.3 C from the station mean1974: 15.3 C, -0.5 C from the station mean1975: 15.6 C, -0.1 C from the station mean1976: 15.2 C, -0.5 C from the station mean1977: 16.0 C, +0.2 C from the station mean1978: 15.9 C, +0.1 C from the station mean1979: 16.4 C, +0.6 C from the station mean1980: 15.5 C, -0.3 C from the station mean1981: 15.4 C, -0.4 C from the station mean1982: 15.8 C, 0.0 C from the station mean1983: 16.1 C, +0.3 C from the station mean1984: 15.2 C, -0.5 C from the station mean1985: 16.0 C, +0.3 C from the station mean1986: 15.4 C, -0.4 C from the station mean1987: 16.6 C, +0.8 C from the station mean1988: 15.7 C, -0.1 C from the station mean1989: 16.2 C, +0.4 C from the station mean2025: 17.9 C, +2.1 C from the station mean19511960197019801990200020102020
One stripe for each of 40 complete years at Owase, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 15.7 C (60.3 F); red stripes are warmer. The coolest year was 1965, at 14.9 C (58.9 F), and the warmest was 2025, at 17.9 C (64.1 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Owase as warming stripes, 1951 to 2025
YearAnnual mean temperatureDifference from the station mean
195115.4 C-0.37 C
195215.5 C-0.20 C
195315.7 C-0.07 C
195415.9 C+0.20 C
195516.2 C+0.50 C
195615.5 C-0.28 C
195715.3 C-0.49 C
195815.9 C+0.15 C
195916.6 C+0.88 C
196016.3 C+0.59 C
196116.5 C+0.75 C
196215.6 C-0.10 C
196315.4 C-0.33 C
196415.8 C+0.04 C
196514.9 C-0.82 C
196615.5 C-0.20 C
196715.5 C-0.21 C
196815.1 C-0.62 C
196915.5 C-0.27 C
197015.1 C-0.66 C
197115.3 C-0.45 C
197215.7 C-0.06 C
197315.4 C-0.33 C
197415.3 C-0.47 C
197515.6 C-0.10 C
197615.2 C-0.50 C
197716.0 C+0.21 C
197815.9 C+0.15 C
197916.4 C+0.65 C
198015.5 C-0.25 C
198115.4 C-0.39 C
198215.8 C+0.04 C
198316.1 C+0.31 C
198415.2 C-0.54 C
198516.0 C+0.30 C
198615.4 C-0.36 C
198716.6 C+0.85 C
198815.7 C-0.05 C
198916.2 C+0.41 C
202517.9 C+2.12 C

The annual mean temperature here has risen by 0.16 C (0.04 to 0.28) per decade over 1951 to 2025. In Fahrenheit: 0.3 F (0.1 to 0.5) 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 Owase
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.16 C (0.04 to 0.28) per decade0.3 F (0.1 to 0.5) per decade1951 to 202540Rise
Mean daily maximum0.09 C (-0.02 to 0.21) per decade0.17 F (-0.04 to 0.37) per decade1951 to 202540Not clearly different from zero
Mean daily minimum0.2 C (0.1 to 0.4) per decade0.4 F (0.2 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 Owase: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.8 C (101.8 F)202435.9 C (96.6 F)75
Coldest night (TNn)-6.9 C (19.6 F)1963-2.9 C (26.8 F)75
Wettest day (Rx1day)806.0 mm (31.7 in)1968279.4 mm (11.0 in)75
Wettest five days (Rx5day)1,541.5 mm (60.7 in)1968457.9 mm (18.0 in)75
Longest dry spell (CDD)40 days197316 days73

Hottest day (TXx)

Hottest day (TXx) at Owase by year The hottest day of the year at Owase, 1951 to 2026. The record is 38.8 C (101.8 F) in 2024, marked on the chart; the median year is 35.9 C (96.6 F). 32343638401960198020002020Record: 38.8 C (101.8 F) in 2024
The hottest day of the year at Owase, 1951 to 2026. The record is 38.8 C (101.8 F) in 2024, marked on the chart; the median year is 35.9 C (96.6 F).
Hottest day (TXx) at Owase by year
YearHottest day (TXx)
195135.2 C (95.4 F)
195235.5 C (95.9 F)
195335.3 C (95.5 F)
195434.3 C (93.7 F)
195536.1 C (97.0 F)
195635.4 C (95.7 F)
195735.1 C (95.2 F)
195835.2 C (95.4 F)
195934.8 C (94.6 F)
196035.2 C (95.4 F)
196134.5 C (94.1 F)
196235.2 C (95.4 F)
196335.9 C (96.6 F)
196435.0 C (95.0 F)
196533.9 C (93.0 F)
196634.3 C (93.7 F)
196735.3 C (95.5 F)
196835.9 C (96.6 F)
196937.4 C (99.3 F)
197034.7 C (94.5 F)
197134.7 C (94.5 F)
197235.0 C (95.0 F)
197334.4 C (93.9 F)
197434.0 C (93.2 F)
197533.6 C (92.5 F)
197634.9 C (94.8 F)
197736.4 C (97.5 F)
197836.5 C (97.7 F)
197936.2 C (97.2 F)
198034.4 C (93.9 F)
198136.1 C (97.0 F)
198233.9 C (93.0 F)
198336.6 C (97.9 F)
198436.6 C (97.9 F)
198535.8 C (96.4 F)
198634.8 C (94.6 F)
198736.5 C (97.7 F)
198834.1 C (93.4 F)
198934.3 C (93.7 F)
199038.0 C (100.4 F)
199136.1 C (97.0 F)
199235.9 C (96.6 F)
199336.5 C (97.7 F)
199436.0 C (96.8 F)
199538.4 C (101.1 F)
199637.1 C (98.8 F)
199736.8 C (98.2 F)
199836.2 C (97.2 F)
199935.7 C (96.3 F)
200036.6 C (97.9 F)
200137.5 C (99.5 F)
200237.7 C (99.9 F)
200336.4 C (97.5 F)
200436.5 C (97.7 F)
200635.1 C (95.2 F)
200734.8 C (94.6 F)
200837.2 C (99.0 F)
200938.0 C (100.4 F)
201036.7 C (98.1 F)
201136.9 C (98.4 F)
201233.6 C (92.5 F)
201338.2 C (100.8 F)
201434.9 C (94.8 F)
201535.1 C (95.2 F)
201638.6 C (101.5 F)
201735.5 C (95.9 F)
201838.1 C (100.6 F)
201935.3 C (95.5 F)
202037.3 C (99.1 F)
202136.8 C (98.2 F)
202237.7 C (99.9 F)
202336.2 C (97.2 F)
202438.8 C (101.8 F)
202536.0 C (96.8 F)
202637.8 C (100.0 F)

Coldest night (TNn)

Coldest night (TNn) at Owase by year The coldest night of the year at Owase, 1951 to 2026. The record is -6.9 C (19.6 F) in 1963, marked on the chart; the median year is -2.9 C (26.8 F). -8-6-4-201960198020002020Record: -6.9 C (19.6 F) in 1963
The coldest night of the year at Owase, 1951 to 2026. The record is -6.9 C (19.6 F) in 1963, marked on the chart; the median year is -2.9 C (26.8 F).
Coldest night (TNn) at Owase by year
YearColdest night (TNn)
1951-4.1 C (24.6 F)
1952-3.9 C (25.0 F)
1953-4.0 C (24.8 F)
1954-3.9 C (25.0 F)
1955-4.5 C (23.9 F)
1956-4.1 C (24.6 F)
1957-4.1 C (24.6 F)
1958-5.1 C (22.8 F)
1959-4.0 C (24.8 F)
1960-3.9 C (25.0 F)
1961-4.0 C (24.8 F)
1962-3.7 C (25.3 F)
1963-6.9 C (19.6 F)
1964-4.5 C (23.9 F)
1965-4.5 C (23.9 F)
1966-4.7 C (23.5 F)
1967-5.9 C (21.4 F)
1968-4.8 C (23.4 F)
1969-4.2 C (24.4 F)
1970-4.6 C (23.7 F)
1971-5.0 C (23.0 F)
1972-2.2 C (28.0 F)
1973-3.5 C (25.7 F)
1974-4.6 C (23.7 F)
1975-3.5 C (25.7 F)
1976-3.5 C (25.7 F)
1977-5.4 C (22.3 F)
1978-4.3 C (24.3 F)
1979-2.3 C (27.9 F)
1980-4.0 C (24.8 F)
1981-4.5 C (23.9 F)
1982-3.4 C (25.9 F)
1983-3.8 C (25.2 F)
1984-4.2 C (24.4 F)
1985-4.1 C (24.6 F)
1986-4.0 C (24.8 F)
1987-2.3 C (27.9 F)
1988-2.9 C (26.8 F)
1989-2.4 C (27.7 F)
1990-2.3 C (27.9 F)
1991-2.8 C (27.0 F)
1992-1.6 C (29.1 F)
1993-2.0 C (28.4 F)
1994-2.1 C (28.2 F)
1995-1.8 C (28.8 F)
1996-3.1 C (26.4 F)
1997-2.7 C (27.1 F)
1998-2.6 C (27.3 F)
1999-4.2 C (24.4 F)
2000-2.5 C (27.5 F)
2001-2.6 C (27.3 F)
2002-1.6 C (29.1 F)
2003-2.6 C (27.3 F)
2004-1.6 C (29.1 F)
2006-2.8 C (27.0 F)
2007-1.0 C (30.2 F)
2008-1.9 C (28.6 F)
2009-2.6 C (27.3 F)
2010-2.1 C (28.2 F)
2011-2.4 C (27.7 F)
2012-4.1 C (24.6 F)
2013-2.3 C (27.9 F)
2014-1.9 C (28.6 F)
2015-1.7 C (28.9 F)
2016-1.9 C (28.6 F)
2017-2.2 C (28.0 F)
2018-2.9 C (26.8 F)
2019-0.6 C (30.9 F)
2020-1.3 C (29.7 F)
2021-1.9 C (28.6 F)
2022-2.1 C (28.2 F)
2023-2.7 C (27.1 F)
2024-0.3 C (31.5 F)
2025-1.9 C (28.6 F)
2026-1.3 C (29.7 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Owase by year The wettest day of the year at Owase, 1951 to 2026. The record is 806.0 mm (31.7 in) in 1968, marked on the chart; the median year is 279.4 mm (11.0 in). 02004006008001,0001960198020002020Record: 806.0 mm (31.7 in) in 1968
The wettest day of the year at Owase, 1951 to 2026. The record is 806.0 mm (31.7 in) in 1968, marked on the chart; the median year is 279.4 mm (11.0 in).
Wettest day (Rx1day) at Owase by year
YearWettest day (Rx1day)
1951246.3 mm (9.7 in)
1952423.8 mm (16.7 in)
1953267.7 mm (10.5 in)
1954288.2 mm (11.3 in)
1955151.4 mm (6.0 in)
1956279.1 mm (11.0 in)
1957226.2 mm (8.9 in)
1958392.6 mm (15.5 in)
1959243.3 mm (9.6 in)
1960521.4 mm (20.5 in)
1961432.4 mm (17.0 in)
1962359.0 mm (14.1 in)
1963270.2 mm (10.6 in)
1964232.3 mm (9.1 in)
1965224.5 mm (8.8 in)
1966421.5 mm (16.6 in)
1967319.5 mm (12.6 in)
1968806.0 mm (31.7 in)
1969205.5 mm (8.1 in)
1970486.0 mm (19.1 in)
1971733.5 mm (28.9 in)
1972303.5 mm (11.9 in)
1973194.5 mm (7.7 in)
1974419.0 mm (16.5 in)
1975315.5 mm (12.4 in)
1976238.5 mm (9.4 in)
1977661.5 mm (26.0 in)
1978358.0 mm (14.1 in)
1979463.0 mm (18.2 in)
1980244.0 mm (9.6 in)
1981328.0 mm (12.9 in)
1982312.5 mm (12.3 in)
1983275.0 mm (10.8 in)
1984354.0 mm (13.9 in)
1985248.5 mm (9.8 in)
1986224.0 mm (8.8 in)
1987206.0 mm (8.1 in)
1988242.5 mm (9.5 in)
1989236.0 mm (9.3 in)
1990287.0 mm (11.3 in)
1991147.1 mm (5.8 in)
1992291.1 mm (11.5 in)
1993351.0 mm (13.8 in)
1994321.1 mm (12.6 in)
1995244.1 mm (9.6 in)
1996278.9 mm (11.0 in)
1997307.1 mm (12.1 in)
1998255.0 mm (10.0 in)
1999218.9 mm (8.6 in)
2000205.0 mm (8.1 in)
2001279.1 mm (11.0 in)
2002265.9 mm (10.5 in)
2003256.5 mm (10.1 in)
2004279.4 mm (11.0 in)
2006319.0 mm (12.6 in)
2007160.8 mm (6.3 in)
2008169.9 mm (6.7 in)
2009311.9 mm (12.3 in)
2010292.1 mm (11.5 in)
2011216.4 mm (8.5 in)
2012324.9 mm (12.8 in)
2013280.9 mm (11.1 in)
2014285.0 mm (11.2 in)
2015283.0 mm (11.1 in)
2016126.0 mm (5.0 in)
2017281.9 mm (11.1 in)
2018217.9 mm (8.6 in)
2019297.9 mm (11.7 in)
2020293.9 mm (11.6 in)
2021198.1 mm (7.8 in)
2022290.1 mm (11.4 in)
2023151.9 mm (6.0 in)
2024246.9 mm (9.7 in)
202552.0 mm (2.0 in)
2026312.5 mm (12.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Owase by year The wettest five days of the year at Owase, 1951 to 2026. The record is 1,541.5 mm (60.7 in) in 1968, marked on the chart; the median year is 457.9 mm (18.0 in). 05001,0001,5002,0001960198020002020Record: 1,541.5 mm (60.7 in) in 1968
The wettest five days of the year at Owase, 1951 to 2026. The record is 1,541.5 mm (60.7 in) in 1968, marked on the chart; the median year is 457.9 mm (18.0 in).
Wettest five days (Rx5day) at Owase by year
YearWettest five days (Rx5day)
1951482.1 mm (19.0 in)
1952605.6 mm (23.8 in)
1953569.2 mm (22.4 in)
1954694.6 mm (27.3 in)
1955373.5 mm (14.7 in)
1956457.9 mm (18.0 in)
1957352.3 mm (13.9 in)
1958564.7 mm (22.2 in)
1959689.9 mm (27.2 in)
1960670.3 mm (26.4 in)
19611,055.5 mm (41.6 in)
1962408.1 mm (16.1 in)
1963276.9 mm (10.9 in)
1964282.6 mm (11.1 in)
1965610.9 mm (24.1 in)
1966584.7 mm (23.0 in)
1967616.7 mm (24.3 in)
19681,541.5 mm (60.7 in)
1969378.5 mm (14.9 in)
1970581.0 mm (22.9 in)
19711,105.0 mm (43.5 in)
1972658.0 mm (25.9 in)
1973378.0 mm (14.9 in)
1974687.0 mm (27.0 in)
1975513.0 mm (20.2 in)
1976527.5 mm (20.8 in)
1977974.5 mm (38.4 in)
1978538.0 mm (21.2 in)
1979701.5 mm (27.6 in)
1980399.5 mm (15.7 in)
1981601.0 mm (23.7 in)
1982579.5 mm (22.8 in)
1983457.0 mm (18.0 in)
1984846.5 mm (33.3 in)
1985445.5 mm (17.5 in)
1986277.5 mm (10.9 in)
1987270.5 mm (10.6 in)
1988500.5 mm (19.7 in)
1989378.5 mm (14.9 in)
1990589.8 mm (23.2 in)
1991176.5 mm (6.9 in)
1992109.0 mm (4.3 in)
1993362.9 mm (14.3 in)
1994164.0 mm (6.5 in)
1995169.9 mm (6.7 in)
1996542.1 mm (21.3 in)
1997558.0 mm (22.0 in)
1998469.9 mm (18.5 in)
1999468.6 mm (18.4 in)
2000406.2 mm (16.0 in)
2001218.7 mm (8.6 in)
2002335.1 mm (13.2 in)
2003442.6 mm (17.4 in)
2004457.9 mm (18.0 in)
2006478.5 mm (18.8 in)
2007211.6 mm (8.3 in)
2008257.3 mm (10.1 in)
2009330.5 mm (13.0 in)
2010447.0 mm (17.6 in)
2011322.0 mm (12.7 in)
2012435.2 mm (17.1 in)
2013435.4 mm (17.1 in)
2014543.8 mm (21.4 in)
2015482.2 mm (19.0 in)
2016234.2 mm (9.2 in)
2017472.9 mm (18.6 in)
2018475.1 mm (18.7 in)
2019352.1 mm (13.9 in)
2020516.9 mm (20.4 in)
2021346.4 mm (13.6 in)
2022455.2 mm (17.9 in)
2023306.1 mm (12.1 in)
2024263.9 mm (10.4 in)
202590.5 mm (3.6 in)
2026568.5 mm (22.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Owase by year The longest dry spell of the year at Owase, 1951 to 2026. The record is 40 days in 1973, marked on the chart; the median year is 16 days. 0102030401960198020002020Record: 40 days in 1973
The longest dry spell of the year at Owase, 1951 to 2026. The record is 40 days in 1973, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Owase by year
YearLongest dry spell (CDD)
195120 days
195210 days
195323 days
195418 days
195517 days
195625 days
195714 days
195813 days
195912 days
196028 days
196119 days
196220 days
196318 days
196417 days
196511 days
196616 days
196715 days
196816 days
196920 days
197029 days
197121 days
197211 days
197340 days
197420 days
197523 days
197618 days
197726 days
197815 days
197913 days
198019 days
198121 days
198214 days
198314 days
198418 days
198521 days
198619 days
198718 days
198837 days
198915 days
19902 days
19912 days
19922 days
19933 days
19942 days
19952 days
19963 days
19972 days
19983 days
19999 days
2000n/a
2001n/a
20023 days
200310 days
200418 days
200611 days
200718 days
200814 days
200916 days
201015 days
201117 days
201215 days
201314 days
201414 days
201515 days
201614 days
201720 days
201816 days
201919 days
202020 days
202112 days
202216 days
202317 days
202416 days
202511 days
202627 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

36 years with a frost

Across 36 years with a frost, the median last spring frost at Owase falls on 24 March and the median first autumn frost on 12 December, which leaves a median of 261 days between them.

Fitted over all years, the growing season changes by +7.2 days per decade at this station.

Frost dates and growing season at Owase
MeasureMedian, all yearsEarliest periodRecent period (1958 to 1989)Recent against earliestFitted trend
Last spring frost24 Marchn/a24 Marchn/a-5.1 days per decade
First autumn frost12 Decembern/a12 Decembern/a+2.2 days per decade
Growing days261 daysn/a260 daysn/a+7.2 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

51 years, 1951 to 2022

A day with at least 284.3 mm (11.2 in) of rain is expected about once in 2 years. A day with at least 862.1 mm (33.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Owase: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years284.3 mm (11.2 in)
5 years387.9 mm (15.3 in)
10 years473.3 mm (18.6 in)
25 years605.0 mm (23.8 in)
50 years723.5 mm (28.5 in)
100 years862.1 mm (33.9 in)Longer than the 51 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, 51 years of values from 1951 to 2022.

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: 806.0 mm (31.7 in) in 1968; 733.5 mm (28.9 in) in 1971; 661.5 mm (26.0 in) in 1977.

Station Changes

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

Download the Data

  • Data for Owase standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Owase 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).