Herzberg Weather Records (GME00123718)

Record envelope, standing records and threshold days for Herzberg (GME00123718), Germany, with 96 years of record.

Key Facts for Herzberg

Herzberg (GME00123718) is a weather station in Germany at 51.63 latitude and 10.37 longitude, 238 m (781 ft) above sea level.
The station reports from 1931 to 2026, 96 years of record.
1,464 records set at Herzberg still stand.
Records are tracked for prcp, snwd: an element needs 30 years of data to be eligible.
Herzberg set a daily record precipitation of 28.6 mm (1.1 in) on 19 June 2026.

About the Station

Location: Germany, 51.63 latitude, 10.37 longitude.
Elevation: 238 m (781 ft).
Period of record: 1931 to 2026, 96 years.
Eligible elements: prcp, snwd.

Daily Record Envelope and 2026

24 days at or beyond a record

The band shows the record high and record low for each calendar day at Herzberg. The lines show the 2026 daily maximum and minimum. 24 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Herzberg, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.1 C (59.2 F)	-19.6 C (-3.3 F)	9.5 C (49.1 F)	-14.6 C (5.7 F)
Feb	18.1 C (64.6 F)	-22.7 C (-8.9 F)	17.8 C (64.0 F)	-5.4 C (22.3 F)
Mar	23.9 C (75.0 F)	-10.7 C (12.7 F)	17.6 C (63.7 F)	-3.7 C (25.3 F)
Apr	28.3 C (82.9 F)	-7.1 C (19.2 F)	20.5 C (68.9 F)	-2.0 C (28.4 F)
May	31.2 C (88.2 F)	-2.9 C (26.8 F)	28.7 C (83.7 F)	1.6 C (34.9 F)
Jun	36.4 C (97.5 F)	1.6 C (34.9 F)	36.4 C (97.5 F)	7.0 C (44.6 F)
Jul	38.2 C (100.8 F)	4.5 C (40.1 F)	37.5 C (99.5 F)	6.4 C (43.5 F)
Aug	36.8 C (98.2 F)	3.8 C (38.8 F)	34.6 C (94.3 F)	6.3 C (43.3 F)
Sep	31.4 C (88.5 F)	0.6 C (33.1 F)	n/a	n/a
Oct	26.0 C (78.8 F)	-6.0 C (21.2 F)	n/a	n/a
Nov	19.8 C (67.6 F)	-9.5 C (14.9 F)	n/a	n/a
Dec	16.8 C (62.2 F)	-17.8 C (0.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Herzberg still stand. 2013 holds the most, with 97.

Standing records at Herzberg by the year they were set
Year set	Standing records
1991	6
1992	46
1993	80
1994	64
1995	70
1996	85
1997	59
1998	73
1999	22
2010	35
2011	52
2012	55
2013	97
2014	39
2015	67
2016	69
2017	41
2018	89
2019	54
2020	37
2021	54
2022	55
2023	58
2024	64
2025	55
2026	38

All-Time Record Progression

2 new records

2 all-time records were set at Herzberg between 31 July 1967 and 24 July 2017. Each dot is a new record.

When Herzberg set new all-time records
Date	Kind	Detail
1967-07-31	Record daily precipitation	Record daily precipitation 72.8 mm (2.9 in)
2017-07-24	Record daily precipitation	Record daily precipitation 79.9 mm (3.1 in)

Wettest Day of Each Month

Jul: 79.9 mm (3.1 in)

The wettest day on record for each calendar month at Herzberg. The most was 79.9 mm (3.1 in) on 24 July 2017.

Record daily precipitation for each month at Herzberg
Month	Record daily precipitation (mm)	Date
Jan	40.5 mm (1.6 in)	1 January 1969
Feb	32.1 mm (1.3 in)	12 February 1962
Mar	35.8 mm (1.4 in)	20 March 1975
Apr	34.9 mm (1.4 in)	12 April 1994
May	46.1 mm (1.8 in)	26 May 2013
Jun	64.8 mm (2.6 in)	3 June 1981
Jul	79.9 mm (3.1 in)	24 July 2017
Aug	51.1 mm (2.0 in)	7 August 1977
Sep	48.8 mm (1.9 in)	15 September 1986
Oct	43.0 mm (1.7 in)	27 October 1935
Nov	59.7 mm (2.4 in)	13 November 2010
Dec	42.2 mm (1.7 in)	23 December 2023

Period of Record Coverage

1991 to 2026

26 years of record at Herzberg, 1991 to 2026. 4 years have data for under 90 percent of days and are left out of rankings: 1991, 1999, 2010, 2026.

Days with data per year at Herzberg
Year	Days with data	Share of year	Complete
1991	92	25%	No
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	212	58%	No
2010	61	17%	No
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 Herzberg
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 June 2026	Herzberg, DE	daily rain	28.6 mm (1.1 in)	11.0 mm (0.4 in)	48 years	37 of 100 (Notable)
12 June 2026	Herzberg, DE	daily rain	18.8 mm (0.7 in)	3.6 mm (0.14 in)	55 years	20 of 100 (Routine)
5 May 2026	Herzberg, DE	daily rain	42.1 mm (1.7 in)	25.5 mm (1.0 in)	28 years	57 of 100 (Notable)
4 September 2025	Herzberg, DE	daily rain	17.8 mm (0.7 in)	6.2 mm (0.24 in)	8 years	20 of 100 (Routine)
4 June 2025	Herzberg, DE	daily rain	30.2 mm (1.2 in)	5.9 mm (0.23 in)	78 years	39 of 100 (Notable)
25 May 2025	Herzberg, DE	daily rain	20.0 mm (0.8 in)	0.5 mm (0.02 in)	12 years	12 of 100 (Routine)
3 May 2025	Herzberg, DE	daily rain	13.8 mm (0.5 in)	1.8 mm (0.07 in)	94 years	20 of 100 (Routine)
21 April 2025	Herzberg, DE	daily rain	8.6 mm (0.34 in)	0.8 mm (0.03 in)	47 years	20 of 100 (Routine)
19 November 2024	Herzberg, DE	daily rain	32.3 mm (1.3 in)	6.7 mm (0.26 in)	85 years	46 of 100 (Notable)
8 September 2024	Herzberg, DE	daily rain	32.9 mm (1.3 in)	10.5 mm (0.4 in)	44 years	41 of 100 (Notable)
3 August 2024	Herzberg, DE	daily rain	22.8 mm (0.9 in)	0.5 mm (0.02 in)	64 years	20 of 100 (Routine)
1 August 2024	Herzberg, DE	daily rain	48.9 mm (1.9 in)	31.2 mm (1.2 in)	64 years	68 of 100 (Major)
23 July 2024	Herzberg, DE	daily rain	16.6 mm (0.7 in)	1.4 mm (0.06 in)	38 years	20 of 100 (Routine)
5 March 2024	Herzberg, DE	daily rain	14.3 mm (0.6 in)	0.8 mm (0.03 in)	56 years	20 of 100 (Routine)
24 December 2023	Herzberg, DE	daily rain	17.3 mm (0.7 in)	3.9 mm (0.15 in)	56 years	20 of 100 (Routine)
23 December 2023	Herzberg, DE	monthly rain	42.2 mm (1.7 in)	5.5 mm (0.22 in)	35 years	40 of 100 (Notable)
20 December 2023	Herzberg, DE	daily rain	17.4 mm (0.7 in)	1.2 mm (0.05 in)	38 years	20 of 100 (Routine)
16 August 2023	Herzberg, DE	daily rain	32.4 mm (1.3 in)	20.2 mm (0.8 in)	52 years	57 of 100 (Notable)
22 June 2023	Herzberg, DE	daily rain	31.5 mm (1.2 in)	8.5 mm (0.33 in)	50 years	35 of 100 (Notable)
18 February 2023	Herzberg, DE	daily rain	22.9 mm (0.9 in)	11.9 mm (0.5 in)	25 years	20 of 100 (Routine)

Climate Trend

22 complete years, 1992 to 2025

One stripe for each of 22 complete years at Herzberg, 1992 to 2025. Blue stripes are years cooler than the station's own mean of 9.5 C (49.0 F); red stripes are warmer. The coolest year was 1996, at 7.4 C (45.4 F), and the warmest was 2024, at 10.7 C (51.3 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Herzberg as warming stripes, 1992 to 2025
Year	Annual mean temperature	Difference from the station mean
1992	9.5 C	+0.01 C
1993	8.4 C	-1.07 C
1994	9.8 C	+0.31 C
1995	9.0 C	-0.45 C
1996	7.4 C	-2.04 C
1997	9.5 C	+0.07 C
1998	9.5 C	+0.07 C
2011	9.5 C	+0.03 C
2012	8.8 C	-0.67 C
2013	8.4 C	-1.10 C
2014	10.1 C	+0.67 C
2015	9.6 C	+0.11 C
2016	9.4 C	-0.08 C
2017	9.4 C	-0.06 C
2018	10.3 C	+0.82 C
2019	10.0 C	+0.52 C
2020	10.1 C	+0.60 C
2021	8.8 C	-0.65 C
2022	10.2 C	+0.74 C
2023	10.2 C	+0.73 C
2024	10.7 C	+1.27 C
2025	9.6 C	+0.14 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

1931 to 2026

Yearly extremes at Herzberg: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.2 C (100.8 F)	2022	33.7 C (92.7 F)	26
Coldest night (TNn)	-22.7 C (-8.9 F)	2021	-13.0 C (8.6 F)	26
Wettest day (Rx1day)	79.9 mm (3.1 in)	2017	35.7 mm (1.4 in)	84
Wettest five days (Rx5day)	129.2 mm (5.1 in)	2017	64.0 mm (2.5 in)	84
Longest dry spell (CDD)	37 days	1943	18 days	84

Hottest day (TXx)

The hottest day of the year at Herzberg, 1931 to 2026. The record is 38.2 C (100.8 F) in 2022, marked on the chart; the median year is 33.7 C (92.7 F).

Hottest day (TXx) at Herzberg by year
Year	Hottest day (TXx)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
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	20.7 C (69.3 F)
1992	36.8 C (98.2 F)
1993	28.5 C (83.3 F)
1994	35.8 C (96.4 F)
1995	33.2 C (91.8 F)
1996	31.2 C (88.2 F)
1997	32.1 C (89.8 F)
1998	35.2 C (95.4 F)
1999	31.6 C (88.9 F)
2010	16.7 C (62.1 F)
2011	30.6 C (87.1 F)
2012	34.5 C (94.1 F)
2013	33.8 C (92.8 F)
2014	31.8 C (89.2 F)
2015	36.2 C (97.2 F)
2016	33.7 C (92.7 F)
2017	33.7 C (92.7 F)
2018	35.9 C (96.6 F)
2019	36.6 C (97.9 F)
2020	34.6 C (94.3 F)
2021	33.5 C (92.3 F)
2022	38.2 C (100.8 F)
2023	33.2 C (91.8 F)
2024	32.4 C (90.3 F)
2025	36.7 C (98.1 F)
2026	37.5 C (99.5 F)

Coldest night (TNn)

The coldest night of the year at Herzberg, 1931 to 2026. The record is -22.7 C (-8.9 F) in 2021, marked on the chart; the median year is -13.0 C (8.6 F).

Coldest night (TNn) at Herzberg by year
Year	Coldest night (TNn)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
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	-8.9 C (16.0 F)
1992	-10.9 C (12.4 F)
1993	-14.2 C (6.4 F)
1994	-11.3 C (11.7 F)
1995	-14.8 C (5.4 F)
1996	-17.8 C (0.0 F)
1997	-19.6 C (-3.3 F)
1998	-13.8 C (7.2 F)
1999	-11.3 C (11.7 F)
2010	-16.2 C (2.8 F)
2011	-11.6 C (11.1 F)
2012	-19.5 C (-3.1 F)
2013	-10.7 C (12.7 F)
2014	-9.6 C (14.7 F)
2015	-13.3 C (8.1 F)
2016	-14.2 C (6.4 F)
2017	-13.0 C (8.6 F)
2018	-14.9 C (5.2 F)
2019	-9.7 C (14.5 F)
2020	-7.2 C (19.0 F)
2021	-22.7 C (-8.9 F)
2022	-13.0 C (8.6 F)
2023	-10.9 C (12.4 F)
2024	-11.3 C (11.7 F)
2025	-11.1 C (12.0 F)
2026	-14.6 C (5.7 F)

Wettest day (Rx1day)

The wettest day of the year at Herzberg, 1931 to 2026. The record is 79.9 mm (3.1 in) in 2017, marked on the chart; the median year is 35.7 mm (1.4 in).

Wettest day (Rx1day) at Herzberg by year
Year	Wettest day (Rx1day)
1931	49.1 mm (1.9 in)
1932	35.9 mm (1.4 in)
1933	31.5 mm (1.2 in)
1934	53.2 mm (2.1 in)
1935	43.0 mm (1.7 in)
1936	35.5 mm (1.4 in)
1937	38.0 mm (1.5 in)
1938	30.5 mm (1.2 in)
1939	33.4 mm (1.3 in)
1940	61.7 mm (2.4 in)
1941	42.2 mm (1.7 in)
1942	36.4 mm (1.4 in)
1943	29.6 mm (1.2 in)
1944	64.6 mm (2.5 in)
1947	34.6 mm (1.4 in)
1948	30.2 mm (1.2 in)
1949	27.9 mm (1.1 in)
1950	31.6 mm (1.2 in)
1951	33.6 mm (1.3 in)
1952	24.1 mm (0.9 in)
1953	39.2 mm (1.5 in)
1954	42.7 mm (1.7 in)
1955	43.2 mm (1.7 in)
1956	53.2 mm (2.1 in)
1957	36.1 mm (1.4 in)
1958	48.9 mm (1.9 in)
1959	42.7 mm (1.7 in)
1960	44.4 mm (1.7 in)
1961	49.1 mm (1.9 in)
1962	32.1 mm (1.3 in)
1963	31.2 mm (1.2 in)
1964	36.0 mm (1.4 in)
1965	48.0 mm (1.9 in)
1966	33.0 mm (1.3 in)
1967	72.8 mm (2.9 in)
1968	24.7 mm (1.0 in)
1969	60.5 mm (2.4 in)
1970	34.7 mm (1.4 in)
1971	35.3 mm (1.4 in)
1972	31.6 mm (1.2 in)
1973	20.6 mm (0.8 in)
1974	42.1 mm (1.7 in)
1975	35.8 mm (1.4 in)
1976	19.3 mm (0.8 in)
1977	51.1 mm (2.0 in)
1978	21.1 mm (0.8 in)
1979	19.4 mm (0.8 in)
1980	34.7 mm (1.4 in)
1981	64.8 mm (2.6 in)
1982	29.9 mm (1.2 in)
1983	40.9 mm (1.6 in)
1984	29.5 mm (1.2 in)
1985	26.8 mm (1.1 in)
1986	48.8 mm (1.9 in)
1987	31.6 mm (1.2 in)
1988	45.4 mm (1.8 in)
1989	34.7 mm (1.4 in)
1990	47.1 mm (1.9 in)
1991	38.3 mm (1.5 in)
1992	30.6 mm (1.2 in)
1993	28.7 mm (1.1 in)
1994	34.9 mm (1.4 in)
1995	21.7 mm (0.9 in)
1996	37.0 mm (1.5 in)
1997	29.4 mm (1.2 in)
1998	43.3 mm (1.7 in)
1999	40.1 mm (1.6 in)
2010	59.7 mm (2.4 in)
2011	22.8 mm (0.9 in)
2012	27.2 mm (1.1 in)
2013	46.1 mm (1.8 in)
2014	39.5 mm (1.6 in)
2015	32.4 mm (1.3 in)
2016	22.4 mm (0.9 in)
2017	79.9 mm (3.1 in)
2018	27.1 mm (1.1 in)
2019	26.9 mm (1.1 in)
2020	43.2 mm (1.7 in)
2021	29.3 mm (1.2 in)
2022	22.9 mm (0.9 in)
2023	42.2 mm (1.7 in)
2024	48.9 mm (1.9 in)
2025	30.2 mm (1.2 in)
2026	42.1 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Herzberg, 1931 to 2026. The record is 129.2 mm (5.1 in) in 2017, marked on the chart; the median year is 64.0 mm (2.5 in).

Wettest five days (Rx5day) at Herzberg by year
Year	Wettest five days (Rx5day)
1931	79.6 mm (3.1 in)
1932	77.4 mm (3.0 in)
1933	63.2 mm (2.5 in)
1934	68.1 mm (2.7 in)
1935	84.1 mm (3.3 in)
1936	57.0 mm (2.2 in)
1937	67.2 mm (2.6 in)
1938	49.5 mm (1.9 in)
1939	76.5 mm (3.0 in)
1940	86.2 mm (3.4 in)
1941	84.5 mm (3.3 in)
1942	62.1 mm (2.4 in)
1943	43.9 mm (1.7 in)
1944	64.6 mm (2.5 in)
1947	85.3 mm (3.4 in)
1948	51.8 mm (2.0 in)
1949	46.0 mm (1.8 in)
1950	84.3 mm (3.3 in)
1951	66.0 mm (2.6 in)
1952	46.5 mm (1.8 in)
1953	95.1 mm (3.7 in)
1954	104.8 mm (4.1 in)
1955	113.4 mm (4.5 in)
1956	92.4 mm (3.6 in)
1957	69.6 mm (2.7 in)
1958	77.6 mm (3.1 in)
1959	45.6 mm (1.8 in)
1960	74.9 mm (2.9 in)
1961	72.4 mm (2.9 in)
1962	49.2 mm (1.9 in)
1963	60.3 mm (2.4 in)
1964	53.5 mm (2.1 in)
1965	58.9 mm (2.3 in)
1966	77.7 mm (3.1 in)
1967	74.9 mm (2.9 in)
1968	59.2 mm (2.3 in)
1969	68.2 mm (2.7 in)
1970	68.5 mm (2.7 in)
1971	47.9 mm (1.9 in)
1972	60.2 mm (2.4 in)
1973	53.4 mm (2.1 in)
1974	96.7 mm (3.8 in)
1975	61.5 mm (2.4 in)
1976	56.8 mm (2.2 in)
1977	66.9 mm (2.6 in)
1978	62.0 mm (2.4 in)
1979	59.8 mm (2.4 in)
1980	52.8 mm (2.1 in)
1981	98.6 mm (3.9 in)
1982	50.4 mm (2.0 in)
1983	65.5 mm (2.6 in)
1984	66.9 mm (2.6 in)
1985	55.6 mm (2.2 in)
1986	93.8 mm (3.7 in)
1987	101.0 mm (4.0 in)
1988	82.6 mm (3.3 in)
1989	55.7 mm (2.2 in)
1990	71.6 mm (2.8 in)
1991	70.2 mm (2.8 in)
1992	53.3 mm (2.1 in)
1993	55.4 mm (2.2 in)
1994	70.1 mm (2.8 in)
1995	47.2 mm (1.9 in)
1996	61.1 mm (2.4 in)
1997	49.0 mm (1.9 in)
1998	93.3 mm (3.7 in)
1999	57.3 mm (2.3 in)
2010	77.8 mm (3.1 in)
2011	40.8 mm (1.6 in)
2012	61.1 mm (2.4 in)
2013	78.4 mm (3.1 in)
2014	53.6 mm (2.1 in)
2015	62.5 mm (2.5 in)
2016	47.1 mm (1.9 in)
2017	129.2 mm (5.1 in)
2018	54.1 mm (2.1 in)
2019	54.1 mm (2.1 in)
2020	70.7 mm (2.8 in)
2021	43.3 mm (1.7 in)
2022	40.1 mm (1.6 in)
2023	95.5 mm (3.8 in)
2024	78.3 mm (3.1 in)
2025	50.7 mm (2.0 in)
2026	63.3 mm (2.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Herzberg, 1931 to 2026. The record is 37 days in 1943, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Herzberg by year
Year	Longest dry spell (CDD)
1931	15 days
1932	28 days
1933	21 days
1934	15 days
1935	16 days
1936	13 days
1937	24 days
1938	15 days
1939	16 days
1940	14 days
1941	23 days
1942	33 days
1943	37 days
1944	21 days
1947	16 days
1948	14 days
1949	33 days
1950	13 days
1951	22 days
1952	13 days
1953	22 days
1954	18 days
1955	12 days
1956	24 days
1957	13 days
1958	17 days
1959	28 days
1960	21 days
1961	17 days
1962	24 days
1963	19 days
1964	19 days
1965	16 days
1966	16 days
1967	10 days
1968	23 days
1969	19 days
1970	14 days
1971	27 days
1972	22 days
1973	21 days
1974	25 days
1975	22 days
1976	23 days
1977	12 days
1978	10 days
1979	14 days
1980	20 days
1981	16 days
1982	21 days
1983	21 days
1984	21 days
1985	18 days
1986	17 days
1987	14 days
1988	15 days
1989	25 days
1990	23 days
1991	19 days
1992	21 days
1993	16 days
1994	18 days
1995	28 days
1996	16 days
1997	18 days
1998	19 days
1999	13 days
2010	7 days
2011	36 days
2012	15 days
2013	20 days
2014	17 days
2015	22 days
2016	17 days
2017	15 days
2018	20 days
2019	15 days
2020	27 days
2021	11 days
2022	21 days
2023	14 days
2024	13 days
2025	30 days
2026	14 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

22 years with a frost

Across 22 years with a frost, the median last spring frost at Herzberg falls on 25 April and the median first autumn frost on 4 November, which leaves a median of 186 days between them.

Frost dates and growing season at Herzberg
Measure	Median, all years	Earliest period	Recent period (1992 to 2025)	Recent against earliest	Fitted trend
Last spring frost	25 April	n/a	25 April	n/a	n/a
First autumn frost	4 November	n/a	4 November	n/a	n/a
Growing days	186 days	n/a	186 days	n/a	n/a

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

81 years, 1931 to 2025

A day with at least 35.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 77.0 mm (3.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Herzberg: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	35.6 mm (1.4 in)
5 years	46.2 mm (1.8 in)
10 years	53.4 mm (2.1 in)
25 years	62.8 mm (2.5 in)
50 years	69.8 mm (2.7 in)
100 years	77.0 mm (3.0 in)	Longer than the 81 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, 81 years of values from 1931 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: 79.9 mm (3.1 in) in 2017; 72.8 mm (2.9 in) in 1967; 64.8 mm (2.6 in) in 1981.

Download the Data

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