Maebashi Weather Records (JA000047624)

Record envelope, standing records and threshold days for Maebashi (JA000047624), Japan, with 76 years of record.

Key Facts for Maebashi

Maebashi (JA000047624) is a weather station in Japan at 36.40 latitude and 139.07 longitude, 113 m (371 ft) above sea level.
The station reports from 1951 to 2026, 76 years of record.
1,464 records set at Maebashi still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Maebashi set a daily record low minimum temperature of 6.4 C (43.5 F) 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, 36.40 latitude, 139.07 longitude.
Elevation: 113 m (371 ft).
Period of record: 1951 to 2026, 76 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

12 days at or beyond a record

The band shows the record high and record low for each calendar day at Maebashi. The lines show the 2026 daily maximum and minimum. 12 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Maebashi, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.7 C (71.1 F)	-8.6 C (16.5 F)	17.5 C (63.5 F)	-4.5 C (23.9 F)
Feb	24.4 C (75.9 F)	-9.0 C (15.8 F)	23.1 C (73.6 F)	-4.2 C (24.4 F)
Mar	27.1 C (80.8 F)	-7.6 C (18.3 F)	18.9 C (66.0 F)	0.0 C (32.0 F)
Apr	32.1 C (89.8 F)	-3.0 C (26.6 F)	27.1 C (80.8 F)	4.8 C (40.6 F)
May	36.5 C (97.7 F)	2.3 C (36.1 F)	32.9 C (91.2 F)	8.8 C (47.8 F)
Jun	39.5 C (103.1 F)	7.6 C (45.7 F)	34.4 C (93.9 F)	15.6 C (60.1 F)
Jul	40.0 C (104.0 F)	11.9 C (53.4 F)	38.4 C (101.1 F)	19.1 C (66.4 F)
Aug	40.6 C (105.1 F)	13.6 C (56.5 F)	37.0 C (98.6 F)	19.6 C (67.3 F)
Sep	38.1 C (100.6 F)	7.5 C (45.5 F)	31.4 C (88.5 F)	16.6 C (61.9 F)
Oct	31.9 C (89.4 F)	3.1 C (37.6 F)	32.0 C (89.6 F)	6.4 C (43.5 F)
Nov	25.9 C (78.6 F)	-2.1 C (28.2 F)	n/a	n/a
Dec	25.2 C (77.4 F)	-6.6 C (20.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Maebashi still stand. 2025 holds the most, with 73.

Standing records at Maebashi by the year they were set
Year set	Standing records
1951	24
1952	13
1953	26
1954	35
1955	10
1956	38
1957	26
1958	24
1959	26
1960	17
1961	16
1962	15
1963	17
1964	11
1965	28
1966	31
1967	25
1968	22
1969	37
1970	30
1971	25
1972	18
1973	22
1974	23
1975	11
1976	27
1977	31
1978	19
1979	17
1980	21
1981	25
1982	20
1983	18
1984	28
1985	21
1986	11
1987	26
1988	14
1989	20
1990	11
1991	12
1992	8
1993	21
1994	8
1995	5
1996	9
1997	19
1998	22
1999	10
2000	4
2001	12
2002	19
2003	13
2004	18
2006	7
2007	19
2008	8
2009	10
2010	26
2011	22
2012	10
2013	12
2015	15
2016	19
2017	15
2018	30
2019	20
2020	15
2021	6
2022	21
2023	23
2024	12
2025	73
2026	42

All-Time Record Progression

13 new records

13 all-time records were set at Maebashi between 27 February 1981 and 5 August 2025. Each dot is a new record.

When Maebashi set new all-time records
Date	Kind	Detail
1981-02-27	Record low minimum temperature	Record low minimum temperature -9.0 C (15.8 F)
1987-07-23	Record high maximum temperature	Record high maximum temperature 38.9 C (102.0 F)
1987-07-24	Record high maximum temperature	Record high maximum temperature 39.1 C (102.4 F)
1993-08-23	Record daily precipitation	Record daily precipitation 340.1 mm (13.4 in)
1997-07-05	Record high maximum temperature	Record high maximum temperature 39.5 C (103.1 F)
2001-07-24	Record high maximum temperature	Record high maximum temperature 40.0 C (104.0 F)
2010-08-01	Record high minimum temperature	Record high minimum temperature 26.8 C (80.2 F)
2013-08-10	Record high minimum temperature	Record high minimum temperature 27.2 C (81.0 F)
2018-07-21	Record high minimum temperature	Record high minimum temperature 27.4 C (81.3 F)
2025-07-06	Record high minimum temperature	Record high minimum temperature 27.7 C (81.9 F)
2025-08-03	Record high minimum temperature	Record high minimum temperature 28.7 C (83.7 F)
2025-08-05	Record high maximum temperature	Record high maximum temperature 40.6 C (105.1 F)
2025-08-05	Record high minimum temperature	Record high minimum temperature 29.6 C (85.3 F)

Wettest Day of Each Month

Aug: 340.1 mm (13.4 in)

The wettest day on record for each calendar month at Maebashi. The most was 340.1 mm (13.4 in) on 23 August 1993.

Record daily precipitation for each month at Maebashi
Month	Record daily precipitation (mm)	Date
Jan	53.8 mm (2.1 in)	27 January 2002
Feb	110.0 mm (4.3 in)	15 February 2014
Mar	56.0 mm (2.2 in)	23 March 1986
Apr	57.9 mm (2.3 in)	18 April 2020
May	77.5 mm (3.1 in)	26 May 1989
Jun	145.7 mm (5.7 in)	28 June 1966
Jul	127.0 mm (5.0 in)	24 July 2019
Aug	340.1 mm (13.4 in)	23 August 1993
Sep	180.1 mm (7.1 in)	12 September 1993
Oct	212.1 mm (8.4 in)	12 October 2019
Nov	88.9 mm (3.5 in)	30 November 1990
Dec	97.5 mm (3.8 in)	27 December 2006

Period of Record Coverage

1951 to 2026

75 years of record at Maebashi, 1951 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 2013, 2014, 2015, 2016, 2017, 2020, 2021, 2022 and others.

Days with data per year at Maebashi
Year	Days with data	Share of year	Complete
1951	365	100%	Yes
1952	366	100%	Yes
1953	364	100%	Yes
1954	364	100%	Yes
1955	361	99%	Yes
1956	365	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	365	100%	Yes
1961	363	99%	Yes
1962	364	100%	Yes
1963	364	100%	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	358	98%	Yes
1991	341	93%	Yes
1992	352	96%	Yes
1993	347	95%	Yes
1994	348	95%	Yes
1995	351	96%	Yes
1996	352	96%	Yes
1997	339	93%	Yes
1998	341	93%	Yes
1999	343	94%	Yes
2000	338	92%	Yes
2001	345	95%	Yes
2002	342	94%	Yes
2003	343	94%	Yes
2004	341	93%	Yes
2006	347	95%	Yes
2007	352	96%	Yes
2008	355	97%	Yes
2009	351	96%	Yes
2010	348	95%	Yes
2011	349	96%	Yes
2012	349	95%	Yes
2013	122	33%	No
2014	3	1%	No
2015	274	75%	No
2016	321	88%	No
2017	323	88%	No
2018	335	92%	Yes
2019	336	92%	Yes
2020	75	20%	No
2021	5	1%	No
2022	151	41%	No
2023	6	2%	No
2024	3	1%	No
2025	360	99%	Yes
2026	275	75%	No

Latest Records

Latest records at Maebashi
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 October 2026	Maebashi, JP	daily low min (Provisional)	6.4 C (43.5 F)	1.0 C (1.8 F)	61 years	27 of 100 (Routine)
3 October 2026	Maebashi, JP	monthly rain (Provisional)	226.0 mm (8.9 in)	13.9 mm (0.5 in)	6 years	26 of 100 (Routine)
1 October 2026	Maebashi, JP	monthly high max (Provisional)	32.0 C (89.6 F)	0.1 C (0.2 F)	13 years	21 of 100 (Routine)
30 September 2026	Maebashi, JP	daily rain (Provisional)	121.5 mm (4.8 in)	33.6 mm (1.3 in)	36 years	32 of 100 (Routine)
29 September 2026	Maebashi, JP	daily rain (Provisional)	199.0 mm (7.8 in)	154.5 mm (6.1 in)	40 years	59 of 100 (Notable)
24 September 2026	Maebashi, JP	daily high max (Provisional)	30.8 C (87.4 F)	1.0 C (1.8 F)	65 years	28 of 100 (Routine)
11 September 2026	Maebashi, JP	monthly rain (Provisional)	277.0 mm (10.9 in)	96.9 mm (3.8 in)	32 years	66 of 100 (Major)
9 September 2026	Maebashi, JP	daily rain (Provisional)	107.0 mm (4.2 in)	18.1 mm (0.7 in)	1 year	15 of 100 (Routine)
4 September 2026	Maebashi, JP	daily rain (Provisional)	90.0 mm (3.5 in)	53.0 mm (2.1 in)	43 years	44 of 100 (Notable)
2 September 2026	Maebashi, JP	daily high min (Provisional)	25.1 C (77.2 F)	0.9 C (1.6 F)	3 years	9 of 100 (Routine)
30 August 2026	Maebashi, JP	daily rain (Provisional)	85.5 mm (3.4 in)	22.5 mm (0.9 in)	1 year	16 of 100 (Routine)
27 August 2026	Maebashi, JP	daily rain (Provisional)	127.0 mm (5.0 in)	49.3 mm (1.9 in)	68 years	48 of 100 (Notable)
12 August 2026	Maebashi, JP	daily rain	137.5 mm (5.4 in)	16.9 mm (0.7 in)	67 years	34 of 100 (Routine)
7 August 2026	Maebashi, JP	daily high min	26.9 C (80.4 F)	0.5 C (0.9 F)	7 years	11 of 100 (Routine)
6 August 2026	Maebashi, JP	daily high min	26.9 C (80.4 F)	0.5 C (0.9 F)	7 years	11 of 100 (Routine)
1 August 2026	Maebashi, JP	daily high min	27.1 C (80.8 F)	0.3 C (0.5 F)	16 years	12 of 100 (Routine)
23 July 2026	Maebashi, JP	daily high min	26.8 C (80.2 F)	0.7 C (1.3 F)	0 years	9 of 100 (Routine)
22 July 2026	Maebashi, JP	daily high max	38.4 C (101.1 F)	0.1 C (0.2 F)	8 years	9 of 100 (Routine)
22 July 2026	Maebashi, JP	daily high min	27.2 C (81.0 F)	0.7 C (1.3 F)	0 years	9 of 100 (Routine)
21 July 2026	Maebashi, JP	monthly high min	28.8 C (83.8 F)	0.2 C (0.4 F)	0 years	17 of 100 (Routine)

Climate Trend

40 complete years, 1951 to 2025

One stripe for each of 40 complete years at Maebashi, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 14.3 C (57.8 F); red stripes are warmer. The coolest year was 1974, at 13.5 C (56.3 F), and the warmest was 2025, at 17.0 C (62.5 F). The strongest colour marks a difference of 2.7 C (4.9 F).

Annual mean temperature at Maebashi as warming stripes, 1951 to 2025
Year	Annual mean temperature	Difference from the station mean
1951	14.1 C	-0.28 C
1952	14.0 C	-0.34 C
1953	13.8 C	-0.52 C
1954	14.2 C	-0.18 C
1955	14.8 C	+0.46 C
1956	14.0 C	-0.36 C
1957	14.2 C	-0.16 C
1958	14.5 C	+0.13 C
1959	14.8 C	+0.49 C
1960	14.6 C	+0.31 C
1961	15.1 C	+0.77 C
1962	14.4 C	+0.08 C
1963	14.0 C	-0.30 C
1964	14.3 C	-0.05 C
1965	13.8 C	-0.56 C
1966	14.2 C	-0.17 C
1967	14.3 C	-0.03 C
1968	14.3 C	-0.07 C
1969	14.2 C	-0.13 C
1970	13.9 C	-0.43 C
1971	14.0 C	-0.38 C
1972	14.4 C	+0.08 C
1973	14.3 C	-0.05 C
1974	13.5 C	-0.85 C
1975	14.3 C	-0.07 C
1976	13.7 C	-0.63 C
1977	14.6 C	+0.27 C
1978	14.8 C	+0.46 C
1979	15.5 C	+1.21 C
1980	13.8 C	-0.53 C
1981	13.8 C	-0.57 C
1982	14.5 C	+0.18 C
1983	14.2 C	-0.14 C
1984	13.6 C	-0.71 C
1985	14.4 C	+0.11 C
1986	13.8 C	-0.58 C
1987	15.1 C	+0.74 C
1988	14.0 C	-0.31 C
1989	14.9 C	+0.56 C
2025	17.0 C	+2.63 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1951 to 2025. In Fahrenheit: 0.4 F (0.1 to 0.6) 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 Maebashi
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.4 F (0.1 to 0.6) per decade	1951 to 2025	40	Rise
Mean daily maximum	0.16 C (0.03 to 0.29) per decade	0.29 F (0.05 to 0.53) per decade	1951 to 2025	40	Rise
Mean daily minimum	0.2 C (0.1 to 0.4) per decade	0.4 F (0.2 to 0.7) per decade	1951 to 2025	40	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 2026

Yearly extremes at Maebashi: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	2025	36.6 C (97.9 F)	75
Coldest night (TNn)	-9.0 C (15.8 F)	1981	-5.8 C (21.6 F)	75
Wettest day (Rx1day)	340.1 mm (13.4 in)	1993	80.0 mm (3.1 in)	75
Wettest five days (Rx5day)	549.0 mm (21.6 in)	2026	131.0 mm (5.2 in)	73
Longest dry spell (CDD)	51 days	1973	26 days	73

Hottest day (TXx)

The hottest day of the year at Maebashi, 1951 to 2026. The record is 40.6 C (105.1 F) in 2025, marked on the chart; the median year is 36.6 C (97.9 F).

Hottest day (TXx) at Maebashi by year
Year	Hottest day (TXx)
1951	35.9 C (96.6 F)
1952	34.9 C (94.8 F)
1953	34.7 C (94.5 F)
1954	34.6 C (94.3 F)
1955	35.3 C (95.5 F)
1956	36.2 C (97.2 F)
1957	34.6 C (94.3 F)
1958	36.1 C (97.0 F)
1959	36.0 C (96.8 F)
1960	35.8 C (96.4 F)
1961	36.0 C (96.8 F)
1962	37.6 C (99.7 F)
1963	35.9 C (96.6 F)
1964	33.9 C (93.0 F)
1965	37.2 C (99.0 F)
1966	35.5 C (95.9 F)
1967	36.6 C (97.9 F)
1968	37.0 C (98.6 F)
1969	36.6 C (97.9 F)
1970	35.5 C (95.9 F)
1971	35.2 C (95.4 F)
1972	36.0 C (96.8 F)
1973	37.3 C (99.1 F)
1974	34.0 C (93.2 F)
1975	36.2 C (97.2 F)
1976	35.1 C (95.2 F)
1977	35.4 C (95.7 F)
1978	38.4 C (101.1 F)
1979	36.2 C (97.2 F)
1980	33.7 C (92.7 F)
1981	35.3 C (95.5 F)
1982	34.9 C (94.8 F)
1983	36.7 C (98.1 F)
1984	38.1 C (100.6 F)
1985	36.4 C (97.5 F)
1986	35.1 C (95.2 F)
1987	39.1 C (102.4 F)
1988	35.7 C (96.3 F)
1989	34.1 C (93.4 F)
1990	38.7 C (101.7 F)
1991	37.6 C (99.7 F)
1992	37.8 C (100.0 F)
1993	36.5 C (97.7 F)
1994	38.7 C (101.7 F)
1995	38.4 C (101.1 F)
1996	38.6 C (101.5 F)
1997	39.5 C (103.1 F)
1998	38.7 C (101.7 F)
1999	36.6 C (97.9 F)
2000	38.0 C (100.4 F)
2001	40.0 C (104.0 F)
2002	38.5 C (101.3 F)
2003	37.2 C (99.0 F)
2004	38.4 C (101.1 F)
2006	37.6 C (99.7 F)
2007	38.8 C (101.8 F)
2008	36.8 C (98.2 F)
2009	37.6 C (99.7 F)
2010	38.5 C (101.3 F)
2011	38.3 C (100.9 F)
2012	38.2 C (100.8 F)
2013	30.8 C (87.4 F)
2014	36.3 C (97.3 F)
2015	38.8 C (101.8 F)
2016	37.0 C (98.6 F)
2017	35.8 C (96.4 F)
2018	39.1 C (102.4 F)
2019	38.9 C (102.0 F)
2020	30.7 C (87.3 F)
2021	33.0 C (91.4 F)
2022	39.5 C (103.1 F)
2023	32.7 C (90.9 F)
2024	28.6 C (83.5 F)
2025	40.6 C (105.1 F)
2026	38.4 C (101.1 F)

Coldest night (TNn)

The coldest night of the year at Maebashi, 1951 to 2026. The record is -9.0 C (15.8 F) in 1981, marked on the chart; the median year is -5.8 C (21.6 F).

Coldest night (TNn) at Maebashi by year
Year	Coldest night (TNn)
1951	-6.6 C (20.1 F)
1952	-7.8 C (18.0 F)
1953	-7.1 C (19.2 F)
1954	-7.3 C (18.9 F)
1955	-6.6 C (20.1 F)
1956	-6.4 C (20.5 F)
1957	-7.6 C (18.3 F)
1958	-6.9 C (19.6 F)
1959	-7.6 C (18.3 F)
1960	-5.9 C (21.4 F)
1961	-7.2 C (19.0 F)
1962	-5.4 C (22.3 F)
1963	-8.6 C (16.5 F)
1964	-6.8 C (19.8 F)
1965	-5.8 C (21.6 F)
1966	-6.2 C (20.8 F)
1967	-8.0 C (17.6 F)
1968	-6.8 C (19.8 F)
1969	-5.8 C (21.6 F)
1970	-8.1 C (17.4 F)
1971	-6.4 C (20.5 F)
1972	-6.1 C (21.0 F)
1973	-5.6 C (21.9 F)
1974	-7.4 C (18.7 F)
1975	-6.3 C (20.7 F)
1976	-8.3 C (17.1 F)
1977	-8.2 C (17.2 F)
1978	-7.5 C (18.5 F)
1979	-4.6 C (23.7 F)
1980	-5.8 C (21.6 F)
1981	-9.0 C (15.8 F)
1982	-5.6 C (21.9 F)
1983	-5.9 C (21.4 F)
1984	-7.7 C (18.1 F)
1985	-7.9 C (17.8 F)
1986	-6.0 C (21.2 F)
1987	-5.2 C (22.6 F)
1988	-5.5 C (22.1 F)
1989	-1.9 C (28.6 F)
1990	-4.7 C (23.5 F)
1991	-6.1 C (21.0 F)
1992	-3.1 C (26.4 F)
1993	-3.5 C (25.7 F)
1994	-5.6 C (21.9 F)
1995	-5.2 C (22.6 F)
1996	-6.3 C (20.7 F)
1997	-6.0 C (21.2 F)
1998	-4.3 C (24.3 F)
1999	-5.9 C (21.4 F)
2000	-4.8 C (23.4 F)
2001	-6.3 C (20.7 F)
2002	-4.2 C (24.4 F)
2003	-5.0 C (23.0 F)
2004	-4.8 C (23.4 F)
2006	-6.1 C (21.0 F)
2007	-2.9 C (26.8 F)
2008	-4.1 C (24.6 F)
2009	-4.4 C (24.1 F)
2010	-4.3 C (24.3 F)
2011	-5.5 C (22.1 F)
2012	-5.6 C (21.9 F)
2013	-4.5 C (23.9 F)
2014	-4.3 C (24.3 F)
2015	-3.0 C (26.6 F)
2016	-6.1 C (21.0 F)
2017	-4.3 C (24.3 F)
2018	-5.4 C (22.3 F)
2019	-2.7 C (27.1 F)
2020	-4.9 C (23.2 F)
2021	-5.2 C (22.6 F)
2022	-4.2 C (24.4 F)
2023	-5.4 C (22.3 F)
2024	-2.2 C (28.0 F)
2025	-3.5 C (25.7 F)
2026	-4.5 C (23.9 F)

Wettest day (Rx1day)

The wettest day of the year at Maebashi, 1951 to 2026. The record is 340.1 mm (13.4 in) in 1993, marked on the chart; the median year is 80.0 mm (3.1 in).

Wettest day (Rx1day) at Maebashi by year
Year	Wettest day (Rx1day)
1951	67.6 mm (2.7 in)
1952	43.2 mm (1.7 in)
1953	69.6 mm (2.7 in)
1954	146.5 mm (5.8 in)
1955	92.9 mm (3.7 in)
1956	78.1 mm (3.1 in)
1957	50.0 mm (2.0 in)
1958	180.0 mm (7.1 in)
1959	122.8 mm (4.8 in)
1960	48.2 mm (1.9 in)
1961	106.2 mm (4.2 in)
1962	147.2 mm (5.8 in)
1963	48.7 mm (1.9 in)
1964	78.2 mm (3.1 in)
1965	70.4 mm (2.8 in)
1966	145.7 mm (5.7 in)
1967	61.0 mm (2.4 in)
1968	75.0 mm (3.0 in)
1969	89.0 mm (3.5 in)
1970	68.0 mm (2.7 in)
1971	100.5 mm (4.0 in)
1972	75.5 mm (3.0 in)
1973	73.0 mm (2.9 in)
1974	82.5 mm (3.2 in)
1975	94.5 mm (3.7 in)
1976	55.0 mm (2.2 in)
1977	98.0 mm (3.9 in)
1978	59.0 mm (2.3 in)
1979	72.0 mm (2.8 in)
1980	44.5 mm (1.8 in)
1981	111.5 mm (4.4 in)
1982	175.0 mm (6.9 in)
1983	115.5 mm (4.5 in)
1984	57.0 mm (2.2 in)
1985	71.0 mm (2.8 in)
1986	102.5 mm (4.0 in)
1987	78.5 mm (3.1 in)
1988	63.5 mm (2.5 in)
1989	80.0 mm (3.1 in)
1990	102.1 mm (4.0 in)
1991	94.0 mm (3.7 in)
1992	89.9 mm (3.5 in)
1993	340.1 mm (13.4 in)
1994	112.0 mm (4.4 in)
1995	62.0 mm (2.4 in)
1996	80.0 mm (3.1 in)
1997	69.1 mm (2.7 in)
1998	162.1 mm (6.4 in)
1999	173.0 mm (6.8 in)
2000	56.1 mm (2.2 in)
2001	100.8 mm (4.0 in)
2002	124.0 mm (4.9 in)
2003	53.8 mm (2.1 in)
2004	95.0 mm (3.7 in)
2006	110.0 mm (4.3 in)
2007	116.1 mm (4.6 in)
2008	71.9 mm (2.8 in)
2009	75.4 mm (3.0 in)
2010	61.0 mm (2.4 in)
2011	152.4 mm (6.0 in)
2012	61.5 mm (2.4 in)
2013	106.4 mm (4.2 in)
2014	122.4 mm (4.8 in)
2015	73.4 mm (2.9 in)
2016	118.6 mm (4.7 in)
2017	144.5 mm (5.7 in)
2018	75.9 mm (3.0 in)
2019	212.1 mm (8.4 in)
2020	65.0 mm (2.6 in)
2021	69.1 mm (2.7 in)
2022	71.9 mm (2.8 in)
2023	86.1 mm (3.4 in)
2024	88.9 mm (3.5 in)
2025	29.0 mm (1.1 in)
2026	277.0 mm (10.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Maebashi, 1951 to 2026. The record is 549.0 mm (21.6 in) in 2026, marked on the chart; the median year is 131.0 mm (5.2 in).

Wettest five days (Rx5day) at Maebashi by year
Year	Wettest five days (Rx5day)
1951	107.6 mm (4.2 in)
1952	109.6 mm (4.3 in)
1953	103.2 mm (4.1 in)
1954	169.4 mm (6.7 in)
1955	178.8 mm (7.0 in)
1956	128.2 mm (5.0 in)
1957	96.1 mm (3.8 in)
1958	237.1 mm (9.3 in)
1959	238.6 mm (9.4 in)
1960	82.7 mm (3.3 in)
1961	215.2 mm (8.5 in)
1962	184.3 mm (7.3 in)
1963	79.9 mm (3.1 in)
1964	115.0 mm (4.5 in)
1965	113.2 mm (4.5 in)
1966	183.5 mm (7.2 in)
1967	87.1 mm (3.4 in)
1968	139.5 mm (5.5 in)
1969	100.5 mm (4.0 in)
1970	131.0 mm (5.2 in)
1971	132.5 mm (5.2 in)
1972	151.5 mm (6.0 in)
1973	78.5 mm (3.1 in)
1974	110.0 mm (4.3 in)
1975	131.5 mm (5.2 in)
1976	105.0 mm (4.1 in)
1977	132.0 mm (5.2 in)
1978	83.5 mm (3.3 in)
1979	96.0 mm (3.8 in)
1980	92.5 mm (3.6 in)
1981	160.0 mm (6.3 in)
1982	302.5 mm (11.9 in)
1983	146.0 mm (5.7 in)
1984	101.5 mm (4.0 in)
1985	141.5 mm (5.6 in)
1986	160.5 mm (6.3 in)
1987	170.5 mm (6.7 in)
1988	151.5 mm (6.0 in)
1989	137.0 mm (5.4 in)
1990	60.5 mm (2.4 in)
1991	111.0 mm (4.4 in)
1992	n/a
1993	354.0 mm (13.9 in)
1994	172.0 mm (6.8 in)
1995	82.6 mm (3.3 in)
1996	53.9 mm (2.1 in)
1997	96.7 mm (3.8 in)
1998	139.9 mm (5.5 in)
1999	357.4 mm (14.1 in)
2000	85.2 mm (3.4 in)
2001	151.5 mm (6.0 in)
2002	n/a
2003	89.1 mm (3.5 in)
2004	160.5 mm (6.3 in)
2006	209.8 mm (8.3 in)
2007	170.2 mm (6.7 in)
2008	111.8 mm (4.4 in)
2009	101.9 mm (4.0 in)
2010	116.1 mm (4.6 in)
2011	348.0 mm (13.7 in)
2012	116.7 mm (4.6 in)
2013	119.4 mm (4.7 in)
2014	136.4 mm (5.4 in)
2015	126.5 mm (5.0 in)
2016	168.6 mm (6.6 in)
2017	212.4 mm (8.4 in)
2018	118.9 mm (4.7 in)
2019	259.0 mm (10.2 in)
2020	120.1 mm (4.7 in)
2021	176.5 mm (6.9 in)
2022	92.5 mm (3.6 in)
2023	96.0 mm (3.8 in)
2024	150.8 mm (5.9 in)
2025	47.0 mm (1.9 in)
2026	549.0 mm (21.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Maebashi, 1951 to 2026. The record is 51 days in 1973, marked on the chart; the median year is 26 days.

Longest dry spell (CDD) at Maebashi by year
Year	Longest dry spell (CDD)
1951	28 days
1952	17 days
1953	31 days
1954	21 days
1955	40 days
1956	36 days
1957	34 days
1958	16 days
1959	24 days
1960	31 days
1961	23 days
1962	37 days
1963	27 days
1964	34 days
1965	31 days
1966	43 days
1967	26 days
1968	32 days
1969	28 days
1970	25 days
1971	48 days
1972	14 days
1973	51 days
1974	20 days
1975	20 days
1976	35 days
1977	34 days
1978	36 days
1979	34 days
1980	26 days
1981	29 days
1982	34 days
1983	37 days
1984	20 days
1985	24 days
1986	44 days
1987	18 days
1988	43 days
1989	26 days
1990	3 days
1991	2 days
1992	2 days
1993	2 days
1994	2 days
1995	3 days
1996	2 days
1997	3 days
1998	4 days
1999	19 days
2000	n/a
2001	n/a
2002	2 days
2003	9 days
2004	24 days
2006	16 days
2007	33 days
2008	21 days
2009	19 days
2010	21 days
2011	36 days
2012	26 days
2013	19 days
2014	26 days
2015	18 days
2016	17 days
2017	32 days
2018	27 days
2019	49 days
2020	34 days
2021	15 days
2022	40 days
2023	24 days
2024	16 days
2025	11 days
2026	37 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 Maebashi falls on 28 March and the median first autumn frost on 30 November, which leaves a median of 248 days between them.

Fitted over all years, the growing season changes by +4.1 days per decade at this station.

Frost dates and growing season at Maebashi
Measure	Median, all years	Earliest period	Recent period (1961 to 2025)	Recent against earliest	Fitted trend
Last spring frost	28 March	n/a	25 March	n/a	-2.3 days per decade
First autumn frost	30 November	n/a	30 November	n/a	+1.7 days per decade
Growing days	248 days	n/a	247 days	n/a	+4.1 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 82.8 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 228.4 mm (9.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Maebashi: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	82.8 mm (3.3 in)
5 years	114.1 mm (4.5 in)
10 years	137.6 mm (5.4 in)
25 years	170.8 mm (6.7 in)
50 years	198.4 mm (7.8 in)
100 years	228.4 mm (9.0 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: 212.1 mm (8.4 in) in 2019; 180.0 mm (7.1 in) in 1958; 175.0 mm (6.9 in) in 1982.

Station Changes

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

Download the Data

Data for Maebashi standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Maebashi 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).