Rollbach Weather Records (GME00126154)

Record envelope, standing records and threshold days for Rollbach (GME00126154), Germany, with 86 years of record.

Key Facts for Rollbach

Rollbach (GME00126154) is a weather station in Germany at 49.77 latitude and 9.25 longitude, 239 m (784 ft) above sea level.
The station reports from 1941 to 2026, 86 years of record.
1,464 records set at Rollbach still stand.
Records are tracked for prcp, snwd: an element needs 30 years of data to be eligible.
Rollbach set a daily record precipitation of 13.0 mm (0.5 in) on 23 February 2026.

About the Station

Location: Germany, 49.77 latitude, 9.25 longitude.
Elevation: 239 m (784 ft).
Period of record: 1941 to 2026, 86 years.
Eligible elements: prcp, snwd.

Daily Record Envelope and 2026

41 days at or beyond a record

The band shows the record high and record low for each calendar day at Rollbach. The lines show the 2026 daily maximum and minimum. 41 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Rollbach, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	16.7 C (62.1 F)	-17.5 C (0.5 F)	11.4 C (52.5 F)	-10.5 C (13.1 F)
Feb	19.7 C (67.5 F)	-16.9 C (1.6 F)	19.3 C (66.7 F)	-3.4 C (25.9 F)
Mar	25.5 C (77.9 F)	-11.7 C (10.9 F)	19.3 C (66.7 F)	-3.8 C (25.2 F)
Apr	30.4 C (86.7 F)	-5.6 C (21.9 F)	22.4 C (72.3 F)	-2.7 C (27.1 F)
May	31.6 C (88.9 F)	-2.2 C (28.0 F)	31.5 C (88.7 F)	1.4 C (34.5 F)
Jun	39.9 C (103.8 F)	4.6 C (40.3 F)	39.9 C (103.8 F)	6.5 C (43.7 F)
Jul	39.1 C (102.4 F)	5.4 C (41.7 F)	39.1 C (102.4 F)	7.1 C (44.8 F)
Aug	38.8 C (101.8 F)	4.0 C (39.2 F)	37.5 C (99.5 F)	6.8 C (44.2 F)
Sep	32.2 C (90.0 F)	0.7 C (33.3 F)	n/a	n/a
Oct	27.0 C (80.6 F)	-3.2 C (26.2 F)	n/a	n/a
Nov	22.1 C (71.8 F)	-8.1 C (17.4 F)	n/a	n/a
Dec	17.6 C (63.7 F)	-21.0 C (-5.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Rollbach still stand. 2010 holds the most, with 116.

Standing records at Rollbach by the year they were set
Year set	Standing records
2006	34
2007	76
2008	59
2009	78
2010	116
2011	76
2012	76
2013	86
2014	62
2015	89
2016	63
2017	58
2018	78
2019	53
2020	66
2021	67
2022	65
2023	66
2024	73
2025	65
2026	58

Wettest Day of Each Month

Jul: 76.0 mm (3.0 in)

The wettest day on record for each calendar month at Rollbach. The most was 76.0 mm (3.0 in) on 23 July 1963.

Record daily precipitation for each month at Rollbach
Month	Record daily precipitation (mm)	Date
Jan	52.7 mm (2.1 in)	25 January 1995
Feb	37.0 mm (1.5 in)	12 February 1962
Mar	33.0 mm (1.3 in)	20 March 2002
Apr	33.3 mm (1.3 in)	8 April 1983
May	54.4 mm (2.1 in)	29 May 1980
Jun	62.2 mm (2.4 in)	5 June 2011
Jul	76.0 mm (3.0 in)	23 July 1963
Aug	47.7 mm (1.9 in)	6 August 1977
Sep	41.5 mm (1.6 in)	21 September 1967
Oct	60.4 mm (2.4 in)	28 October 1998
Nov	31.2 mm (1.2 in)	19 November 2015
Dec	46.4 mm (1.8 in)	20 December 1993

Period of Record Coverage

2006 to 2026

21 years of record at Rollbach, 2006 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2006, 2026.

Days with data per year at Rollbach
Year	Days with data	Share of year	Complete
2006	122	33%	No
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	365	100%	Yes
2018	365	100%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	365	100%	Yes
2026	243	67%	No

Latest Records

Latest records at Rollbach
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 February 2026	Rollbach, DE	daily rain	13.0 mm (0.5 in)	1.1 mm (0.04 in)	68 years	20 of 100 (Routine)
27 January 2026	Rollbach, DE	daily snow depth	12.0 cm (4.7 in)	2.0 cm (0.8 in)	47 years	21 of 100 (Routine)
26 January 2026	Rollbach, DE	daily snow depth	23.0 cm (9.1 in)	13.0 cm (5.1 in)	47 years	38 of 100 (Notable)
26 January 2026	Rollbach, DE	daily rain	13.9 mm (0.5 in)	4.7 mm (0.19 in)	24 years	20 of 100 (Routine)
24 September 2025	Rollbach, DE	daily rain	36.8 mm (1.4 in)	15.8 mm (0.6 in)	67 years	57 of 100 (Notable)
2 September 2024	Rollbach, DE	daily rain	13.2 mm (0.5 in)	2.2 mm (0.09 in)	80 years	20 of 100 (Routine)
1 August 2024	Rollbach, DE	daily rain	29.4 mm (1.2 in)	17.3 mm (0.7 in)	58 years	50 of 100 (Notable)
26 July 2024	Rollbach, DE	daily rain (Tie)	25.2 mm (1.0 in)	tie	14 years	3 of 100 (Routine)
30 June 2024	Rollbach, DE	daily rain	20.4 mm (0.8 in)	3.4 mm (0.13 in)	69 years	20 of 100 (Routine)
1 June 2024	Rollbach, DE	daily rain	22.2 mm (0.9 in)	2.9 mm (0.11 in)	63 years	20 of 100 (Routine)
2 May 2024	Rollbach, DE	daily rain	25.1 mm (1.0 in)	10.1 mm (0.4 in)	26 years	30 of 100 (Routine)
7 February 2024	Rollbach, DE	daily rain	11.7 mm (0.5 in)	2.8 mm (0.11 in)	40 years	20 of 100 (Routine)
25 October 2023	Rollbach, DE	daily rain	20.1 mm (0.8 in)	3.9 mm (0.15 in)	30 years	20 of 100 (Routine)
16 August 2023	Rollbach, DE	daily rain	13.4 mm (0.5 in)	0.1 mm (0.00 in)	32 years	17 of 100 (Routine)
4 August 2023	Rollbach, DE	daily rain	12.3 mm (0.5 in)	1.2 mm (0.05 in)	6 years	11 of 100 (Routine)
20 April 2023	Rollbach, DE	daily rain	12.0 mm (0.5 in)	4.1 mm (0.16 in)	44 years	20 of 100 (Routine)
8 March 2023	Rollbach, DE	daily rain	16.9 mm (0.7 in)	8.7 mm (0.34 in)	5 years	20 of 100 (Routine)
14 September 2022	Rollbach, DE	daily rain	27.3 mm (1.1 in)	7.5 mm (0.30 in)	24 years	28 of 100 (Routine)
19 May 2022	Rollbach, DE	daily rain	28.2 mm (1.1 in)	7.4 mm (0.29 in)	12 years	22 of 100 (Routine)
9 April 2022	Rollbach, DE	monthly snow depth	7.0 cm (2.8 in)	4.0 cm (1.6 in)	5 years	19 of 100 (Routine)

Climate Trend

19 complete years, 2007 to 2025

One stripe for each of 19 complete years at Rollbach, 2007 to 2025. Blue stripes are years cooler than the station's own mean of 10.4 C (50.7 F); red stripes are warmer. The coolest year was 2010, at 8.5 C (47.2 F), and the warmest was 2023, at 11.4 C (52.5 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Rollbach as warming stripes, 2007 to 2025
Year	Annual mean temperature	Difference from the station mean
2007	10.4 C	-0.03 C
2008	10.0 C	-0.43 C
2009	9.6 C	-0.80 C
2010	8.5 C	-1.92 C
2011	10.5 C	+0.07 C
2012	9.9 C	-0.50 C
2013	9.5 C	-0.88 C
2014	11.0 C	+0.63 C
2015	10.6 C	+0.22 C
2016	10.1 C	-0.34 C
2017	10.2 C	-0.15 C
2018	11.3 C	+0.95 C
2019	10.6 C	+0.25 C
2020	10.9 C	+0.53 C
2021	9.6 C	-0.76 C
2022	11.3 C	+0.90 C
2023	11.4 C	+0.99 C
2024	11.3 C	+0.95 C
2025	10.6 C	+0.23 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1941 to 2026

Yearly extremes at Rollbach: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.9 C (103.8 F)	2026	35.5 C (95.9 F)	21
Coldest night (TNn)	-21.0 C (-5.8 F)	2009	-11.0 C (12.2 F)	21
Wettest day (Rx1day)	76.0 mm (3.0 in)	1963	32.8 mm (1.3 in)	84
Wettest five days (Rx5day)	100.5 mm (4.0 in)	1947	59.6 mm (2.3 in)	84
Longest dry spell (CDD)	44 days	1943	22 days	84

Hottest day (TXx)

The hottest day of the year at Rollbach, 1941 to 2026. The record is 39.9 C (103.8 F) in 2026, marked on the chart; the median year is 35.5 C (95.9 F).

Hottest day (TXx) at Rollbach by year
Year	Hottest day (TXx)
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	27.4 C (81.3 F)
2007	35.5 C (95.9 F)
2008	32.4 C (90.3 F)
2009	34.3 C (93.7 F)
2010	35.1 C (95.2 F)
2011	34.4 C (93.9 F)
2012	37.1 C (98.8 F)
2013	36.5 C (97.7 F)
2014	34.6 C (94.3 F)
2015	38.8 C (101.8 F)
2016	34.4 C (93.9 F)
2017	33.6 C (92.5 F)
2018	36.4 C (97.5 F)
2019	38.8 C (101.8 F)
2020	36.3 C (97.3 F)
2021	32.8 C (91.0 F)
2022	37.7 C (99.9 F)
2023	36.2 C (97.2 F)
2024	34.4 C (93.9 F)
2025	37.6 C (99.7 F)
2026	39.9 C (103.8 F)

Coldest night (TNn)

The coldest night of the year at Rollbach, 1941 to 2026. The record is -21.0 C (-5.8 F) in 2009, marked on the chart; the median year is -11.0 C (12.2 F).

Coldest night (TNn) at Rollbach by year
Year	Coldest night (TNn)
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	-3.4 C (25.9 F)
2007	-12.9 C (8.8 F)
2008	-8.3 C (17.1 F)
2009	-21.0 C (-5.8 F)
2010	-16.3 C (2.7 F)
2011	-9.2 C (15.4 F)
2012	-16.9 C (1.6 F)
2013	-11.7 C (10.9 F)
2014	-12.3 C (9.9 F)
2015	-5.7 C (21.7 F)
2016	-8.1 C (17.4 F)
2017	-13.3 C (8.1 F)
2018	-11.0 C (12.2 F)
2019	-9.5 C (14.9 F)
2020	-5.7 C (21.7 F)
2021	-13.9 C (7.0 F)
2022	-12.0 C (10.4 F)
2023	-6.8 C (19.8 F)
2024	-11.2 C (11.8 F)
2025	-8.6 C (16.5 F)
2026	-10.5 C (13.1 F)

Wettest day (Rx1day)

The wettest day of the year at Rollbach, 1941 to 2026. The record is 76.0 mm (3.0 in) in 1963, marked on the chart; the median year is 32.8 mm (1.3 in).

Wettest day (Rx1day) at Rollbach by year
Year	Wettest day (Rx1day)
1941	32.6 mm (1.3 in)
1942	26.5 mm (1.0 in)
1943	59.0 mm (2.3 in)
1944	40.0 mm (1.6 in)
1947	32.3 mm (1.3 in)
1948	40.7 mm (1.6 in)
1949	21.2 mm (0.8 in)
1950	25.5 mm (1.0 in)
1951	20.3 mm (0.8 in)
1952	23.8 mm (0.9 in)
1953	45.4 mm (1.8 in)
1954	30.0 mm (1.2 in)
1955	37.3 mm (1.5 in)
1956	54.1 mm (2.1 in)
1957	43.8 mm (1.7 in)
1958	37.6 mm (1.5 in)
1959	22.2 mm (0.9 in)
1960	28.8 mm (1.1 in)
1961	48.6 mm (1.9 in)
1962	37.0 mm (1.5 in)
1963	76.0 mm (3.0 in)
1964	17.3 mm (0.7 in)
1965	54.3 mm (2.1 in)
1966	37.0 mm (1.5 in)
1967	41.5 mm (1.6 in)
1968	32.9 mm (1.3 in)
1969	24.0 mm (0.9 in)
1970	23.9 mm (0.9 in)
1971	27.8 mm (1.1 in)
1972	36.6 mm (1.4 in)
1973	32.0 mm (1.3 in)
1974	34.8 mm (1.4 in)
1975	57.3 mm (2.3 in)
1976	12.8 mm (0.5 in)
1977	47.7 mm (1.9 in)
1978	47.6 mm (1.9 in)
1979	34.0 mm (1.3 in)
1980	54.4 mm (2.1 in)
1981	53.8 mm (2.1 in)
1982	43.3 mm (1.7 in)
1983	33.3 mm (1.3 in)
1984	26.1 mm (1.0 in)
1985	32.0 mm (1.3 in)
1986	24.0 mm (0.9 in)
1987	35.5 mm (1.4 in)
1988	31.6 mm (1.2 in)
1989	30.5 mm (1.2 in)
1990	51.7 mm (2.0 in)
1991	14.2 mm (0.6 in)
1992	35.0 mm (1.4 in)
1993	46.4 mm (1.8 in)
1994	29.5 mm (1.2 in)
1995	52.7 mm (2.1 in)
1996	30.0 mm (1.2 in)
1997	27.3 mm (1.1 in)
1998	60.4 mm (2.4 in)
1999	20.8 mm (0.8 in)
2000	30.0 mm (1.2 in)
2001	27.9 mm (1.1 in)
2002	42.0 mm (1.7 in)
2003	24.8 mm (1.0 in)
2004	29.8 mm (1.2 in)
2005	30.6 mm (1.2 in)
2006	21.3 mm (0.8 in)
2007	43.4 mm (1.7 in)
2008	54.2 mm (2.1 in)
2009	19.2 mm (0.8 in)
2010	29.8 mm (1.2 in)
2011	62.2 mm (2.4 in)
2012	21.2 mm (0.8 in)
2013	29.9 mm (1.2 in)
2014	50.0 mm (2.0 in)
2015	31.2 mm (1.2 in)
2016	44.8 mm (1.8 in)
2017	32.7 mm (1.3 in)
2018	36.4 mm (1.4 in)
2019	40.3 mm (1.6 in)
2020	35.0 mm (1.4 in)
2021	38.2 mm (1.5 in)
2022	32.8 mm (1.3 in)
2023	20.1 mm (0.8 in)
2024	29.4 mm (1.2 in)
2025	36.8 mm (1.4 in)
2026	16.2 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Rollbach, 1941 to 2026. The record is 100.5 mm (4.0 in) in 1947, marked on the chart; the median year is 59.6 mm (2.3 in).

Wettest five days (Rx5day) at Rollbach by year
Year	Wettest five days (Rx5day)
1941	52.2 mm (2.1 in)
1942	50.3 mm (2.0 in)
1943	90.6 mm (3.6 in)
1944	51.8 mm (2.0 in)
1947	100.5 mm (4.0 in)
1948	76.2 mm (3.0 in)
1949	37.5 mm (1.5 in)
1950	58.8 mm (2.3 in)
1951	38.4 mm (1.5 in)
1952	52.7 mm (2.1 in)
1953	66.2 mm (2.6 in)
1954	50.3 mm (2.0 in)
1955	64.0 mm (2.5 in)
1956	57.8 mm (2.3 in)
1957	59.8 mm (2.4 in)
1958	57.9 mm (2.3 in)
1959	42.2 mm (1.7 in)
1960	55.0 mm (2.2 in)
1961	85.5 mm (3.4 in)
1962	56.7 mm (2.2 in)
1963	76.0 mm (3.0 in)
1964	53.3 mm (2.1 in)
1965	95.6 mm (3.8 in)
1966	49.9 mm (2.0 in)
1967	51.1 mm (2.0 in)
1968	67.1 mm (2.6 in)
1969	51.3 mm (2.0 in)
1970	44.8 mm (1.8 in)
1971	57.0 mm (2.2 in)
1972	68.0 mm (2.7 in)
1973	40.0 mm (1.6 in)
1974	54.8 mm (2.2 in)
1975	77.5 mm (3.1 in)
1976	30.0 mm (1.2 in)
1977	62.8 mm (2.5 in)
1978	90.0 mm (3.5 in)
1979	61.2 mm (2.4 in)
1980	66.6 mm (2.6 in)
1981	71.7 mm (2.8 in)
1982	80.9 mm (3.2 in)
1983	71.9 mm (2.8 in)
1984	52.1 mm (2.1 in)
1985	58.3 mm (2.3 in)
1986	59.3 mm (2.3 in)
1987	61.0 mm (2.4 in)
1988	48.1 mm (1.9 in)
1989	55.2 mm (2.2 in)
1990	72.1 mm (2.8 in)
1991	37.4 mm (1.5 in)
1992	57.5 mm (2.3 in)
1993	86.0 mm (3.4 in)
1994	68.3 mm (2.7 in)
1995	91.6 mm (3.6 in)
1996	71.2 mm (2.8 in)
1997	48.0 mm (1.9 in)
1998	94.7 mm (3.7 in)
1999	36.4 mm (1.4 in)
2000	47.6 mm (1.9 in)
2001	56.4 mm (2.2 in)
2002	90.3 mm (3.6 in)
2003	60.5 mm (2.4 in)
2004	62.1 mm (2.4 in)
2005	75.8 mm (3.0 in)
2006	53.7 mm (2.1 in)
2007	85.2 mm (3.4 in)
2008	81.3 mm (3.2 in)
2009	34.8 mm (1.4 in)
2010	67.5 mm (2.7 in)
2011	74.7 mm (2.9 in)
2012	38.0 mm (1.5 in)
2013	59.2 mm (2.3 in)
2014	62.0 mm (2.4 in)
2015	63.4 mm (2.5 in)
2016	61.8 mm (2.4 in)
2017	63.4 mm (2.5 in)
2018	53.5 mm (2.1 in)
2019	73.4 mm (2.9 in)
2020	63.7 mm (2.5 in)
2021	63.0 mm (2.5 in)
2022	56.1 mm (2.2 in)
2023	43.1 mm (1.7 in)
2024	59.3 mm (2.3 in)
2025	70.9 mm (2.8 in)
2026	42.9 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Rollbach, 1941 to 2026. The record is 44 days in 1943, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Rollbach by year
Year	Longest dry spell (CDD)
1941	16 days
1942	15 days
1943	44 days
1944	24 days
1947	33 days
1948	26 days
1949	35 days
1950	23 days
1951	25 days
1952	20 days
1953	44 days
1954	28 days
1955	18 days
1956	26 days
1957	19 days
1958	24 days
1959	39 days
1960	26 days
1961	17 days
1962	21 days
1963	27 days
1964	21 days
1965	27 days
1966	15 days
1967	22 days
1968	23 days
1969	25 days
1970	14 days
1971	28 days
1972	24 days
1973	25 days
1974	21 days
1975	21 days
1976	27 days
1977	18 days
1978	30 days
1979	14 days
1980	19 days
1981	30 days
1982	17 days
1983	25 days
1984	25 days
1985	23 days
1986	21 days
1987	19 days
1988	20 days
1989	18 days
1990	35 days
1991	28 days
1992	15 days
1993	16 days
1994	16 days
1995	16 days
1996	25 days
1997	20 days
1998	28 days
1999	14 days
2000	17 days
2001	15 days
2002	21 days
2003	23 days
2004	21 days
2005	16 days
2006	25 days
2007	43 days
2008	18 days
2009	18 days
2010	16 days
2011	41 days
2012	20 days
2013	22 days
2014	22 days
2015	23 days
2016	33 days
2017	25 days
2018	30 days
2019	17 days
2020	38 days
2021	19 days
2022	21 days
2023	23 days
2024	19 days
2025	21 days
2026	21 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.

Rainfall Return Levels

82 years, 1941 to 2025

A day with at least 34.3 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 72.7 mm (2.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Rollbach: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	34.3 mm (1.4 in)
5 years	45.4 mm (1.8 in)
10 years	52.4 mm (2.1 in)
25 years	60.8 mm (2.4 in)
50 years	66.9 mm (2.6 in)
100 years	72.7 mm (2.9 in)	Longer than the 82 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, 82 years of values from 1941 to 2025.

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: 76.0 mm (3.0 in) in 1963; 62.2 mm (2.4 in) in 2011; 60.4 mm (2.4 in) in 1998.

Download the Data

Data for Rollbach standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rollbach 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).