Brilon Weather Records (GME00131854)

Record envelope, standing records and threshold days for Brilon (GME00131854), Germany, with 68 years of record.

Key Facts for Brilon

Brilon (GME00131854) is a weather station in Germany at 51.40 latitude and 8.56 longitude, 472 m (1,549 ft) above sea level.
The station reports from 1937 to 2004, 68 years of record.
1,464 records set at Brilon still stand.
Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
Brilon set a daily record high minimum temperature of 16.5 C (61.7 F) on 9 June 2004.

About the Station

Location: Germany, 51.40 latitude, 8.56 longitude.
Elevation: 472 m (1,549 ft).
Period of record: 1937 to 2004, 68 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 Brilon. 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 Brilon, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.0 C (62.6 F)	-24.5 C (-12.1 F)	n/a	n/a
Feb	18.7 C (65.7 F)	-23.1 C (-9.6 F)	n/a	n/a
Mar	22.8 C (73.0 F)	-17.0 C (1.4 F)	n/a	n/a
Apr	27.5 C (81.5 F)	-9.2 C (15.4 F)	n/a	n/a
May	30.5 C (86.9 F)	-4.2 C (24.4 F)	n/a	n/a
Jun	34.4 C (93.9 F)	-1.8 C (28.8 F)	n/a	n/a
Jul	33.2 C (91.8 F)	-0.5 C (31.1 F)	n/a	n/a
Aug	35.0 C (95.0 F)	2.2 C (36.0 F)	n/a	n/a
Sep	32.0 C (89.6 F)	-1.6 C (29.1 F)	n/a	n/a
Oct	24.5 C (76.1 F)	-6.7 C (19.9 F)	n/a	n/a
Nov	19.5 C (67.1 F)	-15.2 C (4.6 F)	n/a	n/a
Dec	14.2 C (57.6 F)	-19.9 C (-3.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Brilon still stand. 1947 holds the most, with 54.

Standing records at Brilon by the year they were set
Year set	Standing records
1937	18
1938	30
1939	21
1940	28
1941	30
1942	27
1943	20
1944	19
1946	16
1947	54
1948	26
1949	26
1950	12
1951	9
1952	26
1953	22
1954	10
1955	19
1956	43
1957	18
1958	22
1959	29
1960	16
1961	34
1962	53
1963	35
1964	26
1965	33
1966	20
1967	20
1968	24
1969	26
1970	7
1971	27
1972	15
1973	15
1974	17
1975	12
1976	12
1977	16
1978	16
1979	16
1980	22
1981	14
1982	10
1983	16
1984	17
1985	34
1986	21
1987	26
1988	5
1989	31
1990	31
1991	17
1992	10
1993	26
1994	15
1995	18
1996	25
1997	16
1998	34
1999	16
2000	21
2001	16
2002	18
2003	30
2004	10

All-Time Record Progression

4 new records

4 all-time records were set at Brilon between 6 March 1970 and 12 August 2003. Each dot is a new record.

When Brilon set new all-time records
Date	Kind	Detail
1970-03-06	Record snow depth	Record snow depth 83.0 cm (32.7 in)
1970-03-07	Record snow depth	Record snow depth 85.0 cm (33.5 in)
2003-08-07	Record high maximum temperature	Record high maximum temperature 34.5 C (94.1 F)
2003-08-12	Record high maximum temperature	Record high maximum temperature 35.0 C (95.0 F)

Wettest Day of Each Month

May: 89.0 mm (3.5 in)

The wettest day on record for each calendar month at Brilon. The most was 89.0 mm (3.5 in) on 30 May 1956.

Record daily precipitation for each month at Brilon
Month	Record daily precipitation (mm)	Date
Jan	49.8 mm (2.0 in)	29 January 1995
Feb	65.5 mm (2.6 in)	8 February 1946
Mar	42.8 mm (1.7 in)	31 March 1969
Apr	49.1 mm (1.9 in)	29 April 1961
May	89.0 mm (3.5 in)	30 May 1956
Jun	57.8 mm (2.3 in)	17 June 1966
Jul	61.7 mm (2.4 in)	9 July 1948
Aug	66.1 mm (2.6 in)	30 August 1968
Sep	69.2 mm (2.7 in)	14 September 1998
Oct	54.2 mm (2.1 in)	12 October 1960
Nov	74.1 mm (2.9 in)	3 November 1940
Dec	71.9 mm (2.8 in)	22 December 1947

Period of Record Coverage

1937 to 2004

67 years of record at Brilon, 1937 to 2004. 2 years have data for under 90 percent of days and are left out of rankings: 1976, 2004.

Days with data per year at Brilon
Year	Days with data	Share of year	Complete
1937	365	100%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	366	100%	Yes
1946	361	99%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	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
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	305	83%	No
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	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
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	182	50%	No

Latest Records

Latest records at Brilon
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 June 2004	Brilon, DE	daily high min	16.5 C (61.7 F)	1.1 C (2.0 F)	55 years	25 of 100 (Routine)
24 May 2004	Brilon, DE	daily low min	1.3 C (34.3 F)	0.4 C (0.7 F)	45 years	20 of 100 (Routine)
7 May 2004	Brilon, DE	daily rain	32.9 mm (1.3 in)	14.8 mm (0.6 in)	43 years	40 of 100 (Notable)
1 May 2004	Brilon, DE	daily rain	13.3 mm (0.5 in)	1.6 mm (0.06 in)	61 years	20 of 100 (Routine)
27 March 2004	Brilon, DE	daily low min	-6.0 C (21.2 F)	0.5 C (0.9 F)	11 years	10 of 100 (Routine)
18 March 2004	Brilon, DE	daily high max (Tie)	19.0 C (66.2 F)	tie	14 years	2 of 100 (Routine)
18 March 2004	Brilon, DE	daily high min (Tie)	7.0 C (44.6 F)	tie	14 years	2 of 100 (Routine)
17 March 2004	Brilon, DE	daily high max	20.5 C (68.9 F)	0.5 C (0.9 F)	14 years	11 of 100 (Routine)
29 February 2004	Brilon, DE	daily low min	-7.5 C (18.5 F)	1.3 C (2.3 F)	36 years	18 of 100 (Routine)
6 February 2004	Brilon, DE	daily high min	7.5 C (45.5 F)	0.8 C (1.4 F)	2 years	7 of 100 (Routine)
5 February 2004	Brilon, DE	daily high min	8.0 C (46.4 F)	0.4 C (0.7 F)	1 year	6 of 100 (Routine)
4 February 2004	Brilon, DE	monthly high min	9.5 C (49.1 F)	0.7 C (1.3 F)	45 years	30 of 100 (Routine)
4 February 2004	Brilon, DE	daily high max	13.6 C (56.5 F)	2.1 C (3.8 F)	1 year	10 of 100 (Routine)
3 February 2004	Brilon, DE	daily high min	7.5 C (45.5 F)	0.7 C (1.3 F)	36 years	18 of 100 (Routine)
19 January 2004	Brilon, DE	daily rain	20.9 mm (0.8 in)	0.6 mm (0.02 in)	17 years	11 of 100 (Routine)
13 December 2003	Brilon, DE	daily rain	39.8 mm (1.6 in)	8.1 mm (0.32 in)	37 years	28 of 100 (Routine)
25 November 2003	Brilon, DE	daily high min	8.5 C (47.3 F)	1.1 C (2.0 F)	56 years	25 of 100 (Routine)
24 November 2003	Brilon, DE	daily high max	14.0 C (57.2 F)	1.1 C (2.0 F)	32 years	17 of 100 (Routine)
24 November 2003	Brilon, DE	daily high min	10.5 C (50.9 F)	1.3 C (2.3 F)	22 years	15 of 100 (Routine)
23 November 2003	Brilon, DE	daily high min	10.0 C (50.0 F)	0.1 C (0.2 F)	56 years	22 of 100 (Routine)

Climate Trend

65 complete years, 1937 to 2003

One stripe for each of 65 complete years at Brilon, 1937 to 2003. Blue stripes are years cooler than the station's own mean of 7.7 C (45.8 F); red stripes are warmer. The coolest year was 1962, at 5.8 C (42.5 F), and the warmest was 1989, at 9.2 C (48.6 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Brilon as warming stripes, 1937 to 2003
Year	Annual mean temperature	Difference from the station mean
1937	7.8 C	+0.08 C
1938	7.8 C	+0.07 C
1939	7.5 C	-0.21 C
1940	6.0 C	-1.71 C
1941	6.6 C	-1.10 C
1942	6.8 C	-0.89 C
1943	8.5 C	+0.80 C
1944	7.5 C	-0.14 C
1946	7.8 C	+0.15 C
1947	8.2 C	+0.54 C
1948	8.7 C	+1.06 C
1949	8.6 C	+0.89 C
1950	7.8 C	+0.08 C
1951	8.1 C	+0.42 C
1952	7.0 C	-0.69 C
1953	8.3 C	+0.61 C
1954	6.9 C	-0.80 C
1955	6.7 C	-0.94 C
1956	6.0 C	-1.69 C
1957	7.9 C	+0.19 C
1958	7.4 C	-0.26 C
1959	8.3 C	+0.57 C
1960	7.5 C	-0.22 C
1961	8.1 C	+0.38 C
1962	5.8 C	-1.86 C
1963	5.9 C	-1.80 C
1964	7.1 C	-0.56 C
1965	6.2 C	-1.46 C
1966	7.8 C	+0.09 C
1967	8.1 C	+0.41 C
1968	7.4 C	-0.31 C
1969	7.3 C	-0.41 C
1970	7.0 C	-0.68 C
1971	7.7 C	+0.03 C
1972	7.3 C	-0.34 C
1973	7.6 C	-0.10 C
1974	8.0 C	+0.32 C
1975	8.2 C	+0.52 C
1977	8.0 C	+0.27 C
1978	7.1 C	-0.60 C
1979	6.7 C	-1.02 C
1980	6.9 C	-0.79 C
1981	7.2 C	-0.49 C
1982	8.5 C	+0.86 C
1983	8.4 C	+0.72 C
1984	7.5 C	-0.16 C
1985	6.8 C	-0.91 C
1986	7.1 C	-0.60 C
1987	6.8 C	-0.86 C
1988	8.2 C	+0.55 C
1989	9.2 C	+1.56 C
1990	8.7 C	+1.05 C
1991	7.7 C	+0.06 C
1992	8.6 C	+0.96 C
1993	8.0 C	+0.27 C
1994	8.9 C	+1.26 C
1995	8.3 C	+0.66 C
1996	6.6 C	-1.12 C
1997	8.6 C	+0.89 C
1998	8.2 C	+0.55 C
1999	8.9 C	+1.19 C
2000	9.2 C	+1.49 C
2001	8.3 C	+0.62 C
2002	8.8 C	+1.16 C
2003	9.0 C	+1.32 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1937 to 2003. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 65 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Brilon
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.5) per decade	1937 to 2003	65	Rise
Mean daily maximum	0.12 C (0.00 to 0.23) per decade	0.21 F (0.01 to 0.41) per decade	1937 to 2003	65	Rise
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1937 to 2003	65	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

1937 to 2004

Yearly extremes at Brilon: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.0 C (95.0 F)	2003	30.7 C (87.3 F)	67
Coldest night (TNn)	-24.5 C (-12.1 F)	1942	-14.0 C (6.8 F)	67
Wettest day (Rx1day)	89.0 mm (3.5 in)	1956	39.5 mm (1.6 in)	67
Wettest five days (Rx5day)	164.0 mm (6.5 in)	1946	83.7 mm (3.3 in)	67
Longest dry spell (CDD)	36 days	1959	16 days	67

Hottest day (TXx)

The hottest day of the year at Brilon, 1937 to 2004. The record is 35.0 C (95.0 F) in 2003, marked on the chart; the median year is 30.7 C (87.3 F).

Hottest day (TXx) at Brilon by year
Year	Hottest day (TXx)
1937	32.2 C (90.0 F)
1938	31.6 C (88.9 F)
1939	30.6 C (87.1 F)
1940	26.9 C (80.4 F)
1941	31.9 C (89.4 F)
1942	30.7 C (87.3 F)
1943	31.7 C (89.1 F)
1944	33.5 C (92.3 F)
1946	31.5 C (88.7 F)
1947	34.4 C (93.9 F)
1948	31.4 C (88.5 F)
1949	31.1 C (88.0 F)
1950	29.3 C (84.7 F)
1951	29.5 C (85.1 F)
1952	33.2 C (91.8 F)
1953	29.0 C (84.2 F)
1954	28.0 C (82.4 F)
1955	26.8 C (80.2 F)
1956	25.6 C (78.1 F)
1957	33.0 C (91.4 F)
1958	28.5 C (83.3 F)
1959	32.0 C (89.6 F)
1960	25.5 C (77.9 F)
1961	29.5 C (85.1 F)
1962	26.1 C (79.0 F)
1963	31.0 C (87.8 F)
1964	31.3 C (88.3 F)
1965	26.7 C (80.1 F)
1966	31.0 C (87.8 F)
1967	29.9 C (85.8 F)
1968	29.0 C (84.2 F)
1969	31.1 C (88.0 F)
1970	28.4 C (83.1 F)
1971	31.5 C (88.7 F)
1972	30.1 C (86.2 F)
1973	30.7 C (87.3 F)
1974	31.3 C (88.3 F)
1975	29.3 C (84.7 F)
1976	32.0 C (89.6 F)
1977	27.4 C (81.3 F)
1978	28.5 C (83.3 F)
1979	28.3 C (82.9 F)
1980	28.3 C (82.9 F)
1981	28.1 C (82.6 F)
1982	28.2 C (82.8 F)
1983	31.4 C (88.5 F)
1984	30.7 C (87.3 F)
1985	29.4 C (84.9 F)
1986	30.9 C (87.6 F)
1987	29.0 C (84.2 F)
1988	27.5 C (81.5 F)
1989	29.0 C (84.2 F)
1990	32.5 C (90.5 F)
1991	29.5 C (85.1 F)
1992	34.0 C (93.2 F)
1993	28.0 C (82.4 F)
1994	33.0 C (91.4 F)
1995	32.0 C (89.6 F)
1996	30.0 C (86.0 F)
1997	30.0 C (86.0 F)
1998	31.6 C (88.9 F)
1999	31.0 C (87.8 F)
2000	32.0 C (89.6 F)
2001	32.0 C (89.6 F)
2002	33.6 C (92.5 F)
2003	35.0 C (95.0 F)
2004	26.5 C (79.7 F)

Coldest night (TNn)

The coldest night of the year at Brilon, 1937 to 2004. The record is -24.5 C (-12.1 F) in 1942, marked on the chart; the median year is -14.0 C (6.8 F).

Coldest night (TNn) at Brilon by year
Year	Coldest night (TNn)
1937	-12.9 C (8.8 F)
1938	-18.9 C (-2.0 F)
1939	-12.5 C (9.5 F)
1940	-24.1 C (-11.4 F)
1941	-17.6 C (0.3 F)
1942	-24.5 C (-12.1 F)
1943	-13.8 C (7.2 F)
1944	-13.8 C (7.2 F)
1946	-14.3 C (6.3 F)
1947	-17.1 C (1.2 F)
1948	-13.4 C (7.9 F)
1949	-13.5 C (7.7 F)
1950	-17.7 C (0.1 F)
1951	-7.2 C (19.0 F)
1952	-13.6 C (7.5 F)
1953	-16.5 C (2.3 F)
1954	-19.5 C (-3.1 F)
1955	-14.5 C (5.9 F)
1956	-23.1 C (-9.6 F)
1957	-11.0 C (12.2 F)
1958	-13.3 C (8.1 F)
1959	-14.6 C (5.7 F)
1960	-19.3 C (-2.7 F)
1961	-13.0 C (8.6 F)
1962	-17.7 C (0.1 F)
1963	-23.8 C (-10.8 F)
1964	-12.2 C (10.0 F)
1965	-17.0 C (1.4 F)
1966	-16.8 C (1.8 F)
1967	-13.2 C (8.2 F)
1968	-19.0 C (-2.2 F)
1969	-14.4 C (6.1 F)
1970	-13.3 C (8.1 F)
1971	-16.6 C (2.1 F)
1972	-14.4 C (6.1 F)
1973	-14.3 C (6.3 F)
1974	-3.9 C (25.0 F)
1975	-10.4 C (13.3 F)
1976	-14.7 C (5.5 F)
1977	-8.5 C (16.7 F)
1978	-19.9 C (-3.8 F)
1979	-21.5 C (-6.7 F)
1980	-12.6 C (9.3 F)
1981	-14.6 C (5.7 F)
1982	-14.0 C (6.8 F)
1983	-11.0 C (12.2 F)
1984	-9.0 C (15.8 F)
1985	-16.8 C (1.8 F)
1986	-22.2 C (-8.0 F)
1987	-19.0 C (-2.2 F)
1988	-10.5 C (13.1 F)
1989	-8.0 C (17.6 F)
1990	-6.0 C (21.2 F)
1991	-16.7 C (1.9 F)
1992	-10.0 C (14.0 F)
1993	-13.0 C (8.6 F)
1994	-12.5 C (9.5 F)
1995	-11.5 C (11.3 F)
1996	-18.0 C (-0.4 F)
1997	-16.7 C (1.9 F)
1998	-12.5 C (9.5 F)
1999	-11.5 C (11.3 F)
2000	-11.5 C (11.3 F)
2001	-11.0 C (12.2 F)
2002	-11.5 C (11.3 F)
2003	-14.5 C (5.9 F)
2004	-9.5 C (14.9 F)

Wettest day (Rx1day)

The wettest day of the year at Brilon, 1937 to 2004. The record is 89.0 mm (3.5 in) in 1956, marked on the chart; the median year is 39.5 mm (1.6 in).

Wettest day (Rx1day) at Brilon by year
Year	Wettest day (Rx1day)
1937	56.6 mm (2.2 in)
1938	51.4 mm (2.0 in)
1939	42.2 mm (1.7 in)
1940	74.1 mm (2.9 in)
1941	43.3 mm (1.7 in)
1942	32.3 mm (1.3 in)
1943	32.5 mm (1.3 in)
1944	57.4 mm (2.3 in)
1946	65.5 mm (2.6 in)
1947	71.9 mm (2.8 in)
1948	61.7 mm (2.4 in)
1949	33.7 mm (1.3 in)
1950	39.1 mm (1.5 in)
1951	33.0 mm (1.3 in)
1952	39.5 mm (1.6 in)
1953	39.0 mm (1.5 in)
1954	38.2 mm (1.5 in)
1955	35.7 mm (1.4 in)
1956	89.0 mm (3.5 in)
1957	37.6 mm (1.5 in)
1958	34.0 mm (1.3 in)
1959	26.1 mm (1.0 in)
1960	54.2 mm (2.1 in)
1961	49.1 mm (1.9 in)
1962	59.2 mm (2.3 in)
1963	31.6 mm (1.2 in)
1964	29.1 mm (1.1 in)
1965	51.5 mm (2.0 in)
1966	57.8 mm (2.3 in)
1967	39.1 mm (1.5 in)
1968	66.1 mm (2.6 in)
1969	42.8 mm (1.7 in)
1970	41.0 mm (1.6 in)
1971	47.0 mm (1.9 in)
1972	35.4 mm (1.4 in)
1973	23.1 mm (0.9 in)
1974	40.4 mm (1.6 in)
1975	45.1 mm (1.8 in)
1976	32.7 mm (1.3 in)
1977	25.8 mm (1.0 in)
1978	26.2 mm (1.0 in)
1979	29.5 mm (1.2 in)
1980	48.8 mm (1.9 in)
1981	51.5 mm (2.0 in)
1982	40.5 mm (1.6 in)
1983	35.9 mm (1.4 in)
1984	49.5 mm (1.9 in)
1985	32.6 mm (1.3 in)
1986	34.5 mm (1.4 in)
1987	30.0 mm (1.2 in)
1988	38.9 mm (1.5 in)
1989	32.0 mm (1.3 in)
1990	34.4 mm (1.4 in)
1991	41.1 mm (1.6 in)
1992	36.6 mm (1.4 in)
1993	41.5 mm (1.6 in)
1994	49.7 mm (2.0 in)
1995	49.8 mm (2.0 in)
1996	30.9 mm (1.2 in)
1997	32.0 mm (1.3 in)
1998	69.2 mm (2.7 in)
1999	42.7 mm (1.7 in)
2000	38.3 mm (1.5 in)
2001	31.4 mm (1.2 in)
2002	51.0 mm (2.0 in)
2003	39.8 mm (1.6 in)
2004	32.9 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Brilon, 1937 to 2004. The record is 164.0 mm (6.5 in) in 1946, marked on the chart; the median year is 83.7 mm (3.3 in).

Wettest five days (Rx5day) at Brilon by year
Year	Wettest five days (Rx5day)
1937	74.2 mm (2.9 in)
1938	70.6 mm (2.8 in)
1939	132.8 mm (5.2 in)
1940	145.6 mm (5.7 in)
1941	96.0 mm (3.8 in)
1942	75.3 mm (3.0 in)
1943	57.4 mm (2.3 in)
1944	75.7 mm (3.0 in)
1946	164.0 mm (6.5 in)
1947	130.7 mm (5.1 in)
1948	125.4 mm (4.9 in)
1949	84.1 mm (3.3 in)
1950	81.5 mm (3.2 in)
1951	75.6 mm (3.0 in)
1952	78.1 mm (3.1 in)
1953	71.1 mm (2.8 in)
1954	96.9 mm (3.8 in)
1955	69.4 mm (2.7 in)
1956	103.1 mm (4.1 in)
1957	83.7 mm (3.3 in)
1958	82.2 mm (3.2 in)
1959	61.6 mm (2.4 in)
1960	109.2 mm (4.3 in)
1961	93.6 mm (3.7 in)
1962	101.0 mm (4.0 in)
1963	86.5 mm (3.4 in)
1964	66.7 mm (2.6 in)
1965	123.7 mm (4.9 in)
1966	123.7 mm (4.9 in)
1967	67.7 mm (2.7 in)
1968	103.3 mm (4.1 in)
1969	60.3 mm (2.4 in)
1970	70.0 mm (2.8 in)
1971	72.8 mm (2.9 in)
1972	56.1 mm (2.2 in)
1973	73.3 mm (2.9 in)
1974	86.1 mm (3.4 in)
1975	80.8 mm (3.2 in)
1976	100.4 mm (4.0 in)
1977	61.3 mm (2.4 in)
1978	66.5 mm (2.6 in)
1979	97.7 mm (3.8 in)
1980	103.2 mm (4.1 in)
1981	84.3 mm (3.3 in)
1982	67.6 mm (2.7 in)
1983	105.1 mm (4.1 in)
1984	124.9 mm (4.9 in)
1985	58.1 mm (2.3 in)
1986	102.5 mm (4.0 in)
1987	112.8 mm (4.4 in)
1988	69.2 mm (2.7 in)
1989	70.1 mm (2.8 in)
1990	92.3 mm (3.6 in)
1991	103.5 mm (4.1 in)
1992	91.8 mm (3.6 in)
1993	74.2 mm (2.9 in)
1994	92.8 mm (3.7 in)
1995	108.3 mm (4.3 in)
1996	64.4 mm (2.5 in)
1997	69.5 mm (2.7 in)
1998	133.9 mm (5.3 in)
1999	62.6 mm (2.5 in)
2000	63.6 mm (2.5 in)
2001	63.4 mm (2.5 in)
2002	87.2 mm (3.4 in)
2003	91.8 mm (3.6 in)
2004	60.4 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Brilon, 1937 to 2004. The record is 36 days in 1959, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Brilon by year
Year	Longest dry spell (CDD)
1937	24 days
1938	16 days
1939	15 days
1940	14 days
1941	12 days
1942	28 days
1943	21 days
1944	14 days
1946	18 days
1947	16 days
1948	14 days
1949	20 days
1950	13 days
1951	29 days
1952	15 days
1953	15 days
1954	18 days
1955	16 days
1956	16 days
1957	17 days
1958	15 days
1959	36 days
1960	20 days
1961	16 days
1962	12 days
1963	20 days
1964	17 days
1965	13 days
1966	15 days
1967	9 days
1968	22 days
1969	19 days
1970	14 days
1971	20 days
1972	22 days
1973	16 days
1974	34 days
1975	16 days
1976	22 days
1977	12 days
1978	12 days
1979	13 days
1980	14 days
1981	10 days
1982	19 days
1983	16 days
1984	21 days
1985	13 days
1986	14 days
1987	14 days
1988	20 days
1989	21 days
1990	22 days
1991	15 days
1992	21 days
1993	13 days
1994	16 days
1995	28 days
1996	15 days
1997	16 days
1998	18 days
1999	14 days
2000	11 days
2001	17 days
2002	21 days
2003	21 days
2004	12 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

65 years with a frost

Across 65 years with a frost, the median last spring frost at Brilon falls on 29 April and the median first autumn frost on 23 October, which leaves a median of 180 days between them.

In 1973 to 2003 the median growing season was 187 days. That is 18 days more than in 1937 to 1967.

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

Frost dates and growing season at Brilon
Measure	Median, all years	Earliest period (1937 to 1967)	Recent period (1973 to 2003)	Recent against earliest	Fitted trend
Last spring frost	29 April	5 May	22 April	13 days earlier	-2.8 days per decade
First autumn frost	23 October	20 October	31 October	11 days later	+2.2 days per decade
Growing days	180 days	169 days	187 days	18 days more	+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

65 years, 1937 to 2003

A day with at least 40.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 90.3 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Brilon: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.4 mm (1.6 in)
5 years	52.0 mm (2.0 in)
10 years	60.4 mm (2.4 in)
25 years	71.7 mm (2.8 in)
50 years	80.8 mm (3.2 in)
100 years	90.3 mm (3.6 in)	Longer than the 65 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, 65 years of values from 1937 to 2003.

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: 89.0 mm (3.5 in) in 1956; 74.1 mm (2.9 in) in 1940; 71.9 mm (2.8 in) in 1947.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Brilon, at 1966. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1966 ran 0.2 C (0.3 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at Brilon, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1966	+0.2	+0.3	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

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