Bad Kosen Weather Records (GME00124738)

Record envelope, standing records and threshold days for Bad Kosen (GME00124738), Germany, with 63 years of record.

Key Facts for Bad Kosen

Bad Kosen (GME00124738) is a weather station in Germany at 51.13 latitude and 11.73 longitude, 136 m (446 ft) above sea level.
The station reports from 1945 to 2007, 63 years of record.
1,464 records set at Bad Kosen still stand.
Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
Bad Kosen set a daily record precipitation of 21.3 mm (0.8 in) on 22 March 2007.

About the Station

Location: Germany, 51.13 latitude, 11.73 longitude.
Elevation: 136 m (446 ft).
Period of record: 1945 to 2007, 63 years.
Eligible elements: tmax, tmin, prcp, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Bad Kosen. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Bad Kosen, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.4 C (59.7 F)	-23.2 C (-9.8 F)	n/a	n/a
Feb	18.5 C (65.3 F)	-24.0 C (-11.2 F)	n/a	n/a
Mar	25.5 C (77.9 F)	-16.6 C (2.1 F)	n/a	n/a
Apr	32.0 C (89.6 F)	-5.8 C (21.6 F)	n/a	n/a
May	34.1 C (93.4 F)	-1.6 C (29.1 F)	n/a	n/a
Jun	34.8 C (94.6 F)	1.3 C (34.3 F)	n/a	n/a
Jul	37.3 C (99.1 F)	4.6 C (40.3 F)	n/a	n/a
Aug	35.9 C (96.6 F)	4.9 C (40.8 F)	n/a	n/a
Sep	35.4 C (95.7 F)	-1.6 C (29.1 F)	n/a	n/a
Oct	28.8 C (83.8 F)	-7.4 C (18.7 F)	n/a	n/a
Nov	22.0 C (71.6 F)	-15.2 C (4.6 F)	n/a	n/a
Dec	19.0 C (66.2 F)	-23.8 C (-10.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Bad Kosen still stand. 1956 holds the most, with 67.

Standing records at Bad Kosen by the year they were set
Year set	Standing records
1945	16
1946	31
1947	66
1948	43
1949	39
1950	30
1951	28
1952	42
1953	35
1954	31
1955	32
1956	67
1957	34
1958	31
1959	38
1960	29
1961	53
1962	42
1963	43
1964	41
1965	32
1966	27
1968	31
1969	33
1970	24
1971	48
1972	31
1973	14
1994	14
1995	31
1996	25
1997	38
1998	39
1999	22
2000	27
2001	37
2002	41
2003	44
2004	18
2005	42
2006	60
2007	15

All-Time Record Progression

1 new records

1 all-time records were set at Bad Kosen between 12 April 1994 and 12 April 1994. Each dot is a new record.

Wettest Day of Each Month

Apr: 65.6 mm (2.6 in)

The wettest day on record for each calendar month at Bad Kosen. The most was 65.6 mm (2.6 in) on 12 April 1994.

Record daily precipitation for each month at Bad Kosen
Month	Record daily precipitation (mm)	Date
Jan	24.0 mm (0.9 in)	12 January 1977
Feb	24.1 mm (0.9 in)	8 February 1946
Mar	31.5 mm (1.2 in)	12 March 1977
Apr	65.6 mm (2.6 in)	12 April 1994
May	41.8 mm (1.6 in)	28 May 1964
Jun	58.9 mm (2.3 in)	13 June 1946
Jul	53.5 mm (2.1 in)	6 July 1983
Aug	59.0 mm (2.3 in)	20 August 1969
Sep	57.5 mm (2.3 in)	12 September 1952
Oct	37.0 mm (1.5 in)	22 October 1974
Nov	39.6 mm (1.6 in)	18 November 2004
Dec	42.3 mm (1.7 in)	30 December 2002

Period of Record Coverage

1945 to 2007

42 years of record at Bad Kosen, 1945 to 2007. 4 years have data for under 90 percent of days and are left out of rankings: 1945, 1973, 1994, 2007.

Days with data per year at Bad Kosen
Year	Days with data	Share of year	Complete
1945	184	50%	No
1946	365	100%	Yes
1947	362	99%	Yes
1948	364	99%	Yes
1949	364	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1968	366	100%	Yes
1969	360	99%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	243	67%	No
1994	92	25%	No
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	90	25%	No

Latest Records

Latest records at Bad Kosen
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 March 2007	Bad Kosen, DE	daily rain	21.3 mm (0.8 in)	12.1 mm (0.5 in)	54 years	20 of 100 (Routine)
21 March 2007	Bad Kosen, DE	daily rain	8.4 mm (0.33 in)	0.5 mm (0.02 in)	5 years	8 of 100 (Routine)
3 March 2007	Bad Kosen, DE	daily rain	8.1 mm (0.32 in)	0.6 mm (0.02 in)	33 years	17 of 100 (Routine)
24 February 2007	Bad Kosen, DE	daily high max	15.2 C (59.4 F)	0.7 C (1.3 F)	45 years	20 of 100 (Routine)
20 January 2007	Bad Kosen, DE	daily high min	7.8 C (46.0 F)	1.4 C (2.5 F)	57 years	25 of 100 (Routine)
20 January 2007	Bad Kosen, DE	daily high max	14.8 C (58.6 F)	4.1 C (7.4 F)	8 years	15 of 100 (Routine)
19 January 2007	Bad Kosen, DE	daily high max	11.5 C (52.7 F)	0.9 C (1.6 F)	57 years	24 of 100 (Routine)
19 January 2007	Bad Kosen, DE	daily high min	5.9 C (42.6 F)	0.7 C (1.3 F)	57 years	24 of 100 (Routine)
18 January 2007	Bad Kosen, DE	daily rain	15.2 mm (0.6 in)	6.2 mm (0.24 in)	20 years	20 of 100 (Routine)
18 January 2007	Bad Kosen, DE	daily high max	14.8 C (58.6 F)	4.7 C (8.5 F)	44 years	28 of 100 (Routine)
18 January 2007	Bad Kosen, DE	daily high min	6.4 C (43.5 F)	2.4 C (4.3 F)	44 years	23 of 100 (Routine)
13 January 2007	Bad Kosen, DE	daily high min	9.1 C (48.4 F)	2.5 C (4.5 F)	59 years	27 of 100 (Routine)
12 January 2007	Bad Kosen, DE	daily high min (Tie)	6.2 C (43.2 F)	tie	60 years	6 of 100 (Routine)
11 January 2007	Bad Kosen, DE	daily high max	12.9 C (55.2 F)	0.1 C (0.2 F)	60 years	24 of 100 (Routine)
10 January 2007	Bad Kosen, DE	daily high min	9.4 C (48.9 F)	4.4 C (7.9 F)	1 year	13 of 100 (Routine)
10 January 2007	Bad Kosen, DE	daily high max	14.2 C (57.6 F)	0.9 C (1.6 F)	8 years	9 of 100 (Routine)
9 January 2007	Bad Kosen, DE	daily high max	15.2 C (59.4 F)	2.8 C (5.0 F)	8 years	13 of 100 (Routine)
7 January 2007	Bad Kosen, DE	daily high min	5.9 C (42.6 F)	0.8 C (1.4 F)	56 years	24 of 100 (Routine)
6 January 2007	Bad Kosen, DE	daily high min	8.4 C (47.1 F)	0.3 C (0.5 F)	8 years	8 of 100 (Routine)
1 January 2007	Bad Kosen, DE	daily high max	12.2 C (54.0 F)	1.5 C (2.7 F)	40 years	20 of 100 (Routine)

Climate Trend

38 complete years, 1946 to 2006

One stripe for each of 38 complete years at Bad Kosen, 1946 to 2006. Blue stripes are years cooler than the station's own mean of 9.3 C (48.7 F); red stripes are warmer. The coolest year was 1956, at 7.5 C (45.5 F), and the warmest was 2000, at 10.8 C (51.4 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Bad Kosen as warming stripes, 1946 to 2006
Year	Annual mean temperature	Difference from the station mean
1946	9.0 C	-0.27 C
1947	8.7 C	-0.58 C
1948	9.9 C	+0.61 C
1949	9.9 C	+0.59 C
1950	9.3 C	-0.05 C
1951	9.7 C	+0.37 C
1952	8.7 C	-0.64 C
1953	9.9 C	+0.58 C
1954	8.5 C	-0.84 C
1955	8.2 C	-1.07 C
1956	7.5 C	-1.82 C
1957	9.7 C	+0.40 C
1958	9.4 C	+0.13 C
1959	10.1 C	+0.83 C
1960	9.2 C	-0.11 C
1961	10.0 C	+0.65 C
1962	8.2 C	-1.08 C
1963	8.0 C	-1.26 C
1964	8.9 C	-0.41 C
1965	8.5 C	-0.77 C
1966	9.5 C	+0.24 C
1968	9.1 C	-0.19 C
1969	8.7 C	-0.58 C
1970	8.8 C	-0.50 C
1971	9.4 C	+0.07 C
1972	8.6 C	-0.67 C
1995	9.6 C	+0.30 C
1996	7.8 C	-1.52 C
1997	9.5 C	+0.22 C
1998	9.9 C	+0.60 C
1999	10.4 C	+1.08 C
2000	10.8 C	+1.47 C
2001	9.9 C	+0.62 C
2002	10.2 C	+0.85 C
2003	10.0 C	+0.65 C
2004	9.8 C	+0.45 C
2005	9.9 C	+0.55 C
2006	10.4 C	+1.06 C

The annual mean temperature here has risen by 0.16 C (0.04 to 0.27) per decade over 1946 to 2006. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Bad Kosen
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.16 C (0.04 to 0.27) per decade	0.3 F (0.1 to 0.5) per decade	1946 to 2006	38	Rise
Mean daily maximum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.1 to 0.4) per decade	1946 to 2006	38	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.4) per decade	0.4 F (0.2 to 0.6) per decade	1946 to 2006	38	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

1945 to 2007

Yearly extremes at Bad Kosen: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.3 C (99.1 F)	1959	33.2 C (91.8 F)	42
Coldest night (TNn)	-24.0 C (-11.2 F)	1956	-15.9 C (3.3 F)	42
Wettest day (Rx1day)	65.6 mm (2.6 in)	1994	33.2 mm (1.3 in)	62
Wettest five days (Rx5day)	92.4 mm (3.6 in)	2004	59.3 mm (2.3 in)	62
Longest dry spell (CDD)	64 days	1959	21 days	62

Hottest day (TXx)

The hottest day of the year at Bad Kosen, 1945 to 2007. The record is 37.3 C (99.1 F) in 1959, marked on the chart; the median year is 33.2 C (91.8 F).

Hottest day (TXx) at Bad Kosen by year
Year	Hottest day (TXx)
1945	33.1 C (91.6 F)
1946	33.5 C (92.3 F)
1947	37.2 C (99.0 F)
1948	33.2 C (91.8 F)
1949	35.0 C (95.0 F)
1950	34.2 C (93.6 F)
1951	33.5 C (92.3 F)
1952	36.4 C (97.5 F)
1953	32.6 C (90.7 F)
1954	33.2 C (91.8 F)
1955	31.6 C (88.9 F)
1956	30.4 C (86.7 F)
1957	36.6 C (97.9 F)
1958	31.9 C (89.4 F)
1959	37.3 C (99.1 F)
1960	31.7 C (89.1 F)
1961	33.2 C (91.8 F)
1962	31.3 C (88.3 F)
1963	35.4 C (95.7 F)
1964	34.9 C (94.8 F)
1965	31.5 C (88.7 F)
1966	35.4 C (95.7 F)
1968	32.0 C (89.6 F)
1969	35.0 C (95.0 F)
1970	33.2 C (91.8 F)
1971	35.5 C (95.9 F)
1972	33.2 C (91.8 F)
1973	32.5 C (90.5 F)
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	18.5 C (65.3 F)
1995	33.6 C (92.5 F)
1996	32.4 C (90.3 F)
1997	31.5 C (88.7 F)
1998	34.6 C (94.3 F)
1999	32.3 C (90.1 F)
2000	33.9 C (93.0 F)
2001	35.6 C (96.1 F)
2002	34.4 C (93.9 F)
2003	35.9 C (96.6 F)
2004	31.2 C (88.2 F)
2005	32.8 C (91.0 F)
2006	36.8 C (98.2 F)
2007	18.0 C (64.4 F)

Coldest night (TNn)

The coldest night of the year at Bad Kosen, 1945 to 2007. The record is -24.0 C (-11.2 F) in 1956, marked on the chart; the median year is -15.9 C (3.3 F).

Coldest night (TNn) at Bad Kosen by year
Year	Coldest night (TNn)
1945	-13.8 C (7.2 F)
1946	-19.8 C (-3.6 F)
1947	-23.4 C (-10.1 F)
1948	-17.0 C (1.4 F)
1949	-13.4 C (7.9 F)
1950	-19.6 C (-3.3 F)
1951	-18.4 C (-1.1 F)
1952	-10.2 C (13.6 F)
1953	-14.5 C (5.9 F)
1954	-20.1 C (-4.2 F)
1955	-15.9 C (3.4 F)
1956	-24.0 C (-11.2 F)
1957	-16.7 C (1.9 F)
1958	-12.4 C (9.7 F)
1959	-11.5 C (11.3 F)
1960	-21.3 C (-6.3 F)
1961	-18.5 C (-1.3 F)
1962	-16.0 C (3.2 F)
1963	-20.7 C (-5.3 F)
1964	-15.1 C (4.8 F)
1965	-16.6 C (2.1 F)
1966	-17.7 C (0.1 F)
1968	-15.7 C (3.7 F)
1969	-23.8 C (-10.8 F)
1970	-17.8 C (0.0 F)
1971	-19.8 C (-3.6 F)
1972	-16.3 C (2.7 F)
1973	-13.1 C (8.4 F)
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	-5.6 C (21.9 F)
1995	-14.3 C (6.3 F)
1996	-20.6 C (-5.1 F)
1997	-17.3 C (0.9 F)
1998	-15.6 C (3.9 F)
1999	-14.1 C (6.6 F)
2000	-11.7 C (10.9 F)
2001	-12.4 C (9.7 F)
2002	-15.6 C (3.9 F)
2003	-16.8 C (1.8 F)
2004	-12.7 C (9.1 F)
2005	-11.7 C (10.9 F)
2006	-14.8 C (5.4 F)
2007	-10.3 C (13.5 F)

Wettest day (Rx1day)

The wettest day of the year at Bad Kosen, 1945 to 2007. The record is 65.6 mm (2.6 in) in 1994, marked on the chart; the median year is 33.2 mm (1.3 in).

Wettest day (Rx1day) at Bad Kosen by year
Year	Wettest day (Rx1day)
1945	41.9 mm (1.6 in)
1946	58.9 mm (2.3 in)
1947	34.4 mm (1.4 in)
1948	31.3 mm (1.2 in)
1949	22.1 mm (0.9 in)
1950	24.4 mm (1.0 in)
1951	35.7 mm (1.4 in)
1952	57.5 mm (2.3 in)
1953	48.1 mm (1.9 in)
1954	39.1 mm (1.5 in)
1955	35.5 mm (1.4 in)
1956	53.3 mm (2.1 in)
1957	26.8 mm (1.1 in)
1958	38.3 mm (1.5 in)
1959	30.9 mm (1.2 in)
1960	30.7 mm (1.2 in)
1961	25.3 mm (1.0 in)
1962	19.1 mm (0.8 in)
1963	20.7 mm (0.8 in)
1964	41.8 mm (1.6 in)
1965	32.4 mm (1.3 in)
1966	26.3 mm (1.0 in)
1968	19.7 mm (0.8 in)
1969	59.0 mm (2.3 in)
1970	46.0 mm (1.8 in)
1971	28.0 mm (1.1 in)
1972	41.0 mm (1.6 in)
1973	40.0 mm (1.6 in)
1974	37.0 mm (1.5 in)
1975	32.8 mm (1.3 in)
1976	24.2 mm (1.0 in)
1977	36.6 mm (1.4 in)
1978	24.5 mm (1.0 in)
1979	25.5 mm (1.0 in)
1980	27.5 mm (1.1 in)
1981	48.0 mm (1.9 in)
1982	21.0 mm (0.8 in)
1983	53.5 mm (2.1 in)
1984	35.2 mm (1.4 in)
1985	19.0 mm (0.7 in)
1986	25.0 mm (1.0 in)
1987	33.0 mm (1.3 in)
1988	28.0 mm (1.1 in)
1989	20.0 mm (0.8 in)
1990	43.5 mm (1.7 in)
1991	18.3 mm (0.7 in)
1992	43.0 mm (1.7 in)
1993	33.3 mm (1.3 in)
1994	65.6 mm (2.6 in)
1995	34.6 mm (1.4 in)
1996	40.6 mm (1.6 in)
1997	25.4 mm (1.0 in)
1998	30.4 mm (1.2 in)
1999	27.3 mm (1.1 in)
2000	55.5 mm (2.2 in)
2001	28.7 mm (1.1 in)
2002	43.4 mm (1.7 in)
2003	30.4 mm (1.2 in)
2004	39.6 mm (1.6 in)
2005	43.4 mm (1.7 in)
2006	40.2 mm (1.6 in)
2007	21.3 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bad Kosen, 1945 to 2007. The record is 92.4 mm (3.6 in) in 2004, marked on the chart; the median year is 59.3 mm (2.3 in).

Wettest five days (Rx5day) at Bad Kosen by year
Year	Wettest five days (Rx5day)
1945	82.9 mm (3.3 in)
1946	76.8 mm (3.0 in)
1947	38.6 mm (1.5 in)
1948	46.8 mm (1.8 in)
1949	44.6 mm (1.8 in)
1950	44.3 mm (1.7 in)
1951	59.3 mm (2.3 in)
1952	74.6 mm (2.9 in)
1953	76.8 mm (3.0 in)
1954	76.3 mm (3.0 in)
1955	44.6 mm (1.8 in)
1956	82.2 mm (3.2 in)
1957	59.6 mm (2.3 in)
1958	56.7 mm (2.2 in)
1959	47.9 mm (1.9 in)
1960	54.5 mm (2.1 in)
1961	63.5 mm (2.5 in)
1962	60.4 mm (2.4 in)
1963	27.7 mm (1.1 in)
1964	54.7 mm (2.2 in)
1965	77.6 mm (3.1 in)
1966	64.3 mm (2.5 in)
1968	34.3 mm (1.4 in)
1969	59.6 mm (2.3 in)
1970	75.5 mm (3.0 in)
1971	70.9 mm (2.8 in)
1972	64.0 mm (2.5 in)
1973	48.3 mm (1.9 in)
1974	52.5 mm (2.1 in)
1975	59.2 mm (2.3 in)
1976	44.5 mm (1.8 in)
1977	59.5 mm (2.3 in)
1978	50.4 mm (2.0 in)
1979	46.2 mm (1.8 in)
1980	65.6 mm (2.6 in)
1981	61.3 mm (2.4 in)
1982	36.7 mm (1.4 in)
1983	53.5 mm (2.1 in)
1984	54.2 mm (2.1 in)
1985	35.5 mm (1.4 in)
1986	41.0 mm (1.6 in)
1987	54.5 mm (2.1 in)
1988	39.5 mm (1.6 in)
1989	34.5 mm (1.4 in)
1990	64.6 mm (2.5 in)
1991	35.1 mm (1.4 in)
1992	62.9 mm (2.5 in)
1993	42.2 mm (1.7 in)
1994	86.7 mm (3.4 in)
1995	79.0 mm (3.1 in)
1996	69.5 mm (2.7 in)
1997	69.0 mm (2.7 in)
1998	54.3 mm (2.1 in)
1999	57.0 mm (2.2 in)
2000	67.0 mm (2.6 in)
2001	41.4 mm (1.6 in)
2002	86.9 mm (3.4 in)
2003	76.4 mm (3.0 in)
2004	92.4 mm (3.6 in)
2005	63.1 mm (2.5 in)
2006	72.5 mm (2.9 in)
2007	39.0 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bad Kosen, 1945 to 2007. The record is 64 days in 1959, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Bad Kosen by year
Year	Longest dry spell (CDD)
1945	13 days
1946	16 days
1947	24 days
1948	22 days
1949	38 days
1950	14 days
1951	23 days
1952	19 days
1953	28 days
1954	24 days
1955	20 days
1956	17 days
1957	18 days
1958	19 days
1959	64 days
1960	14 days
1961	23 days
1962	32 days
1963	21 days
1964	30 days
1965	16 days
1966	11 days
1968	24 days
1969	31 days
1970	16 days
1971	19 days
1972	24 days
1973	15 days
1974	26 days
1975	30 days
1976	27 days
1977	14 days
1978	28 days
1979	22 days
1980	24 days
1981	23 days
1982	20 days
1983	35 days
1984	20 days
1985	18 days
1986	19 days
1987	20 days
1988	15 days
1989	25 days
1990	25 days
1991	26 days
1992	22 days
1993	16 days
1994	15 days
1995	26 days
1996	25 days
1997	17 days
1998	24 days
1999	13 days
2000	17 days
2001	13 days
2002	21 days
2003	21 days
2004	18 days
2005	20 days
2006	18 days
2007	8 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

38 years with a frost

Across 38 years with a frost, the median last spring frost at Bad Kosen falls on 21 April and the median first autumn frost on 19 October, which leaves a median of 182 days between them.

Fitted over all years, the growing season changes by +4.2 days per decade at this station.

Frost dates and growing season at Bad Kosen
Measure	Median, all years	Earliest period	Recent period (1954 to 2006)	Recent against earliest	Fitted trend
Last spring frost	21 April	n/a	19 April	n/a	-2.7 days per decade
First autumn frost	19 October	n/a	21 October	n/a	+1.5 days per decade
Growing days	182 days	n/a	187 days	n/a	+4.2 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

60 years, 1946 to 2006

A day with at least 33.2 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 70.9 mm (2.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Bad Kosen: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	33.2 mm (1.3 in)
5 years	43.7 mm (1.7 in)
10 years	50.5 mm (2.0 in)
25 years	58.9 mm (2.3 in)
50 years	65.0 mm (2.6 in)
100 years	70.9 mm (2.8 in)	Longer than the 60 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, 60 years of values from 1946 to 2006.

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: 65.6 mm (2.6 in) in 1994; 59.0 mm (2.3 in) in 1969; 58.9 mm (2.3 in) in 1946.

Download the Data

Data for Bad Kosen standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bad Kosen 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).