Hermann Weather Records (USC00233793)

Record envelope, standing records and threshold days for Hermann (USC00233793), Missouri, United States, with 131 years of record.

Key Facts for Hermann

Hermann (USC00233793) is a weather station in Missouri, United States at 38.70 latitude and -91.43 longitude, 157 m (514 ft) above sea level.
The station reports from 1892 to 2022, 131 years of record.
0 records set at Hermann still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hermann set a daily record precipitation of 57.2 mm (2.3 in) on 1 July 2021.

About the Station

Location: Missouri, United States, 38.70 latitude, -91.43 longitude.
Elevation: 157 m (514 ft).
Period of record: 1892 to 2022, 131 years.
Eligible elements: prcp, snow, 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 Hermann. 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 Hermann, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Hermann still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Hermann between 29 June 1957 and 15 December 1987. Each dot is a new record.

When Hermann set new all-time records
Date	Kind	Detail
1957-06-29	Record daily precipitation	Record daily precipitation 228.6 mm (9.0 in)
1984-02-27	Record daily snowfall	Record daily snowfall 30.5 cm (12.0 in)
1987-12-15	Record daily snowfall	Record daily snowfall 33.0 cm (13.0 in)

Wettest Day of Each Month

Jun: 228.6 mm (9.0 in)

The wettest day on record for each calendar month at Hermann. The most was 228.6 mm (9.0 in) on 29 June 1957.

Record daily precipitation for each month at Hermann
Month	Record daily precipitation (mm)	Date
Jan	96.0 mm (3.8 in)	3 January 1897
Feb	72.9 mm (2.9 in)	8 February 2006
Mar	73.7 mm (2.9 in)	5 March 1897
Apr	105.4 mm (4.1 in)	8 April 1922
May	107.2 mm (4.2 in)	27 May 2000
Jun	228.6 mm (9.0 in)	29 June 1957
Jul	127.0 mm (5.0 in)	10 July 1991
Aug	109.7 mm (4.3 in)	2 August 2016
Sep	139.2 mm (5.5 in)	2 September 1982
Oct	171.2 mm (6.7 in)	18 October 1905
Nov	155.4 mm (6.1 in)	1 November 1946
Dec	161.3 mm (6.4 in)	3 December 1982

Latest Records

Latest records at Hermann
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 July 2021	Hermann, US	daily rain	57.2 mm (2.3 in)	2.1 mm (0.08 in)	35 years	21 of 100 (Routine)
25 June 2021	Hermann, US	daily rain	66.0 mm (2.6 in)	17.0 mm (0.7 in)	28 years	28 of 100 (Routine)
31 January 2021	Hermann, US	daily rain	53.3 mm (2.1 in)	13.2 mm (0.5 in)	46 years	36 of 100 (Notable)
25 January 2021	Hermann, US	daily rain	38.1 mm (1.5 in)	15.0 mm (0.6 in)	17 years	30 of 100 (Routine)
9 August 2020	Hermann, US	daily rain	104.1 mm (4.1 in)	45.7 mm (1.8 in)	50 years	55 of 100 (Notable)
18 January 2020	Hermann, US	daily rain	53.6 mm (2.1 in)	32.5 mm (1.3 in)	24 years	51 of 100 (Notable)
11 January 2020	Hermann, US	daily rain	87.9 mm (3.5 in)	65.0 mm (2.6 in)	114 years	80 of 100 (Exceptional)
26 August 2019	Hermann, US	daily rain	100.6 mm (4.0 in)	37.1 mm (1.5 in)	44 years	48 of 100 (Notable)
1 May 2019	Hermann, US	daily rain	56.9 mm (2.2 in)	12.4 mm (0.5 in)	56 years	36 of 100 (Notable)
13 March 2019	Hermann, US	daily rain	71.1 mm (2.8 in)	30.0 mm (1.2 in)	57 years	57 of 100 (Notable)
7 February 2019	Hermann, US	daily rain	31.0 mm (1.2 in)	11.2 mm (0.4 in)	32 years	31 of 100 (Routine)
31 December 2018	Hermann, US	daily rain	33.8 mm (1.3 in)	12.0 mm (0.5 in)	44 years	33 of 100 (Routine)
15 November 2018	Hermann, US	monthly snowfall (Tie)	20.3 cm (8.0 in)	tie	67 years	10 of 100 (Routine)
15 November 2018	Hermann, US	monthly snow depth (Tie)	20.3 cm (8.0 in)	tie	42 years	7 of 100 (Routine)
29 August 2018	Hermann, US	daily rain	26.9 mm (1.1 in)	5.1 mm (0.20 in)	109 years	43 of 100 (Notable)
21 February 2018	Hermann, US	daily rain	63.0 mm (2.5 in)	25.2 mm (1.0 in)	67 years	58 of 100 (Notable)
6 July 2017	Hermann, US	daily rain	75.7 mm (3.0 in)	23.6 mm (0.9 in)	121 years	56 of 100 (Notable)
2 August 2016	Hermann, US	monthly rain	109.7 mm (4.3 in)	1.2 mm (0.05 in)	22 years	26 of 100 (Routine)
27 April 2016	Hermann, US	daily rain	40.6 mm (1.6 in)	11.9 mm (0.5 in)	95 years	47 of 100 (Notable)
18 November 2015	Hermann, US	daily rain	97.5 mm (3.8 in)	74.1 mm (2.9 in)	29 years	58 of 100 (Notable)

Extremes by Year

1892 to 2022

Yearly extremes at Hermann: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	228.6 mm (9.0 in)	1957	65.5 mm (2.6 in)	130
Wettest five days (Rx5day)	262.7 mm (10.3 in)	1957	105.5 mm (4.2 in)	126
Longest dry spell (CDD)	42 days	1919	20 days	128

Wettest day (Rx1day)

The wettest day of the year at Hermann, 1892 to 2022. The record is 228.6 mm (9.0 in) in 1957, marked on the chart; the median year is 65.5 mm (2.6 in).

Wettest day (Rx1day) at Hermann by year
Year	Wettest day (Rx1day)
1892	45.7 mm (1.8 in)
1893	53.3 mm (2.1 in)
1894	53.8 mm (2.1 in)
1895	68.6 mm (2.7 in)
1896	53.3 mm (2.1 in)
1897	96.0 mm (3.8 in)
1898	45.2 mm (1.8 in)
1899	53.1 mm (2.1 in)
1900	55.1 mm (2.2 in)
1901	40.9 mm (1.6 in)
1902	46.2 mm (1.8 in)
1903	65.5 mm (2.6 in)
1904	81.3 mm (3.2 in)
1905	171.2 mm (6.7 in)
1906	53.8 mm (2.1 in)
1907	48.8 mm (1.9 in)
1908	41.7 mm (1.6 in)
1909	104.1 mm (4.1 in)
1910	88.9 mm (3.5 in)
1911	67.6 mm (2.7 in)
1912	86.4 mm (3.4 in)
1913	85.9 mm (3.4 in)
1914	61.0 mm (2.4 in)
1915	63.8 mm (2.5 in)
1916	50.8 mm (2.0 in)
1917	35.6 mm (1.4 in)
1918	67.3 mm (2.6 in)
1919	73.7 mm (2.9 in)
1920	44.5 mm (1.8 in)
1921	61.0 mm (2.4 in)
1922	105.4 mm (4.1 in)
1923	55.9 mm (2.2 in)
1924	55.9 mm (2.2 in)
1925	71.1 mm (2.8 in)
1926	58.4 mm (2.3 in)
1927	69.1 mm (2.7 in)
1928	72.4 mm (2.9 in)
1929	61.5 mm (2.4 in)
1930	35.6 mm (1.4 in)
1931	83.8 mm (3.3 in)
1932	104.1 mm (4.1 in)
1933	81.8 mm (3.2 in)
1934	90.2 mm (3.6 in)
1935	40.6 mm (1.6 in)
1936	83.3 mm (3.3 in)
1937	57.4 mm (2.3 in)
1938	82.3 mm (3.2 in)
1939	50.8 mm (2.0 in)
1940	45.7 mm (1.8 in)
1941	135.9 mm (5.4 in)
1942	65.5 mm (2.6 in)
1943	71.1 mm (2.8 in)
1944	61.5 mm (2.4 in)
1945	72.1 mm (2.8 in)
1946	155.4 mm (6.1 in)
1947	63.5 mm (2.5 in)
1948	79.2 mm (3.1 in)
1949	81.3 mm (3.2 in)
1950	39.9 mm (1.6 in)
1951	50.8 mm (2.0 in)
1952	49.8 mm (2.0 in)
1953	57.4 mm (2.3 in)
1954	52.1 mm (2.1 in)
1955	57.4 mm (2.3 in)
1956	41.7 mm (1.6 in)
1957	228.6 mm (9.0 in)
1958	62.2 mm (2.4 in)
1959	57.7 mm (2.3 in)
1960	53.8 mm (2.1 in)
1961	61.0 mm (2.4 in)
1962	55.4 mm (2.2 in)
1963	41.9 mm (1.6 in)
1964	59.7 mm (2.4 in)
1965	45.7 mm (1.8 in)
1966	64.3 mm (2.5 in)
1967	76.2 mm (3.0 in)
1968	90.4 mm (3.6 in)
1969	88.9 mm (3.5 in)
1970	71.6 mm (2.8 in)
1971	64.5 mm (2.5 in)
1972	55.9 mm (2.2 in)
1973	57.9 mm (2.3 in)
1974	81.3 mm (3.2 in)
1975	63.5 mm (2.5 in)
1976	69.9 mm (2.8 in)
1977	63.5 mm (2.5 in)
1978	77.5 mm (3.1 in)
1979	61.0 mm (2.4 in)
1980	59.9 mm (2.4 in)
1981	92.7 mm (3.6 in)
1982	161.3 mm (6.4 in)
1983	124.5 mm (4.9 in)
1984	95.3 mm (3.8 in)
1985	74.9 mm (2.9 in)
1986	128.3 mm (5.1 in)
1987	83.8 mm (3.3 in)
1988	57.2 mm (2.3 in)
1989	39.4 mm (1.6 in)
1990	85.1 mm (3.4 in)
1991	127.0 mm (5.0 in)
1992	84.6 mm (3.3 in)
1993	113.0 mm (4.4 in)
1994	60.5 mm (2.4 in)
1995	67.1 mm (2.6 in)
1996	79.0 mm (3.1 in)
1998	47.8 mm (1.9 in)
1999	70.1 mm (2.8 in)
2000	114.3 mm (4.5 in)
2001	56.9 mm (2.2 in)
2002	51.1 mm (2.0 in)
2003	65.5 mm (2.6 in)
2004	58.4 mm (2.3 in)
2005	86.4 mm (3.4 in)
2006	92.5 mm (3.6 in)
2007	43.9 mm (1.7 in)
2008	88.6 mm (3.5 in)
2009	116.3 mm (4.6 in)
2010	115.1 mm (4.5 in)
2011	77.2 mm (3.0 in)
2012	67.6 mm (2.7 in)
2013	44.5 mm (1.8 in)
2014	67.1 mm (2.6 in)
2015	97.5 mm (3.8 in)
2016	109.7 mm (4.3 in)
2017	75.7 mm (3.0 in)
2018	63.0 mm (2.5 in)
2019	100.6 mm (4.0 in)
2020	104.1 mm (4.1 in)
2021	66.0 mm (2.6 in)
2022	38.1 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hermann, 1892 to 2022. The record is 262.7 mm (10.3 in) in 1957, marked on the chart; the median year is 105.5 mm (4.2 in).

Wettest five days (Rx5day) at Hermann by year
Year	Wettest five days (Rx5day)
1892	63.8 mm (2.5 in)
1893	84.4 mm (3.3 in)
1894	74.9 mm (2.9 in)
1895	165.3 mm (6.5 in)
1896	115.6 mm (4.6 in)
1897	153.9 mm (6.1 in)
1898	88.9 mm (3.5 in)
1899	73.6 mm (2.9 in)
1900	70.8 mm (2.8 in)
1901	52.6 mm (2.1 in)
1902	94.5 mm (3.7 in)
1903	98.0 mm (3.9 in)
1904	139.7 mm (5.5 in)
1905	193.0 mm (7.6 in)
1906	78.7 mm (3.1 in)
1907	99.5 mm (3.9 in)
1908	83.3 mm (3.3 in)
1909	118.4 mm (4.7 in)
1910	179.9 mm (7.1 in)
1911	107.3 mm (4.2 in)
1912	135.0 mm (5.3 in)
1913	105.5 mm (4.2 in)
1914	99.6 mm (3.9 in)
1915	122.0 mm (4.8 in)
1916	73.2 mm (2.9 in)
1917	75.1 mm (3.0 in)
1918	131.0 mm (5.2 in)
1919	171.4 mm (6.7 in)
1920	78.9 mm (3.1 in)
1921	108.5 mm (4.3 in)
1922	163.6 mm (6.4 in)
1923	78.3 mm (3.1 in)
1924	120.4 mm (4.7 in)
1925	111.0 mm (4.4 in)
1926	94.0 mm (3.7 in)
1927	122.4 mm (4.8 in)
1928	122.4 mm (4.8 in)
1929	103.9 mm (4.1 in)
1930	44.0 mm (1.7 in)
1931	105.4 mm (4.1 in)
1932	117.5 mm (4.6 in)
1933	157.2 mm (6.2 in)
1934	122.7 mm (4.8 in)
1935	105.4 mm (4.1 in)
1936	139.1 mm (5.5 in)
1937	116.9 mm (4.6 in)
1938	141.3 mm (5.6 in)
1939	110.0 mm (4.3 in)
1940	88.2 mm (3.5 in)
1941	160.2 mm (6.3 in)
1942	111.1 mm (4.4 in)
1943	191.0 mm (7.5 in)
1944	84.9 mm (3.3 in)
1945	131.6 mm (5.2 in)
1946	227.0 mm (8.9 in)
1947	96.5 mm (3.8 in)
1948	125.9 mm (5.0 in)
1949	90.9 mm (3.6 in)
1950	61.7 mm (2.4 in)
1951	75.9 mm (3.0 in)
1952	74.1 mm (2.9 in)
1953	61.0 mm (2.4 in)
1954	63.0 mm (2.5 in)
1955	79.3 mm (3.1 in)
1956	79.5 mm (3.1 in)
1957	262.7 mm (10.3 in)
1958	124.0 mm (4.9 in)
1959	76.8 mm (3.0 in)
1960	73.9 mm (2.9 in)
1961	138.9 mm (5.5 in)
1962	78.4 mm (3.1 in)
1963	80.1 mm (3.2 in)
1964	78.0 mm (3.1 in)
1965	56.7 mm (2.2 in)
1966	99.5 mm (3.9 in)
1967	78.8 mm (3.1 in)
1968	157.7 mm (6.2 in)
1969	156.5 mm (6.2 in)
1970	156.2 mm (6.1 in)
1971	99.8 mm (3.9 in)
1972	94.5 mm (3.7 in)
1973	76.4 mm (3.0 in)
1974	121.8 mm (4.8 in)
1975	80.8 mm (3.2 in)
1976	79.2 mm (3.1 in)
1977	87.4 mm (3.4 in)
1978	98.3 mm (3.9 in)
1979	86.7 mm (3.4 in)
1980	63.5 mm (2.5 in)
1981	135.9 mm (5.4 in)
1982	240.8 mm (9.5 in)
1983	147.4 mm (5.8 in)
1984	137.2 mm (5.4 in)
1985	141.3 mm (5.6 in)
1986	193.1 mm (7.6 in)
1987	118.5 mm (4.7 in)
1988	93.3 mm (3.7 in)
1989	53.4 mm (2.1 in)
1990	149.6 mm (5.9 in)
1991	145.6 mm (5.7 in)
1992	114.9 mm (4.5 in)
1993	176.3 mm (6.9 in)
1994	156.8 mm (6.2 in)
1995	139.7 mm (5.5 in)
1996	130.3 mm (5.1 in)
1998	87.4 mm (3.4 in)
1999	70.6 mm (2.8 in)
2000	161.8 mm (6.4 in)
2001	77.0 mm (3.0 in)
2002	99.4 mm (3.9 in)
2003	108.6 mm (4.3 in)
2004	80.3 mm (3.2 in)
2005	152.0 mm (6.0 in)
2006	99.4 mm (3.9 in)
2007	79.5 mm (3.1 in)
2008	177.0 mm (7.0 in)
2009	179.0 mm (7.0 in)
2010	120.4 mm (4.7 in)
2011	47.0 mm (1.9 in)
2012	n/a
2013	67.3 mm (2.6 in)
2014	n/a
2015	n/a
2016	164.1 mm (6.5 in)
2017	89.7 mm (3.5 in)
2018	107.7 mm (4.2 in)
2019	125.8 mm (5.0 in)
2020	116.0 mm (4.6 in)
2021	77.3 mm (3.0 in)
2022	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Hermann, 1892 to 2022. The record is 42 days in 1919, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Hermann by year
Year	Longest dry spell (CDD)
1892	18 days
1893	29 days
1894	19 days
1895	21 days
1896	19 days
1897	23 days
1898	25 days
1899	24 days
1900	20 days
1901	19 days
1902	21 days
1903	16 days
1904	29 days
1905	22 days
1906	20 days
1907	17 days
1908	25 days
1909	30 days
1910	29 days
1911	19 days
1912	18 days
1913	18 days
1914	21 days
1915	32 days
1916	15 days
1917	28 days
1918	28 days
1919	42 days
1920	42 days
1921	23 days
1922	19 days
1923	17 days
1924	22 days
1925	25 days
1926	17 days
1927	20 days
1928	16 days
1929	30 days
1930	24 days
1931	23 days
1932	17 days
1933	29 days
1934	25 days
1935	17 days
1936	22 days
1937	18 days
1938	24 days
1939	24 days
1940	31 days
1941	17 days
1942	16 days
1943	23 days
1944	32 days
1945	26 days
1946	19 days
1947	24 days
1948	25 days
1949	21 days
1950	30 days
1951	14 days
1952	24 days
1953	25 days
1954	19 days
1955	38 days
1956	32 days
1957	23 days
1958	25 days
1959	20 days
1960	18 days
1961	18 days
1962	23 days
1963	35 days
1964	29 days
1965	16 days
1966	19 days
1967	24 days
1968	19 days
1969	19 days
1970	20 days
1971	21 days
1972	13 days
1973	13 days
1974	15 days
1975	13 days
1976	23 days
1977	15 days
1978	20 days
1979	42 days
1980	22 days
1981	20 days
1982	20 days
1983	19 days
1984	19 days
1985	19 days
1986	32 days
1987	16 days
1988	36 days
1989	28 days
1990	16 days
1991	14 days
1992	19 days
1993	20 days
1994	17 days
1995	23 days
1996	22 days
1998	11 days
1999	22 days
2000	15 days
2001	16 days
2002	20 days
2003	21 days
2004	23 days
2005	27 days
2006	18 days
2007	19 days
2008	20 days
2009	22 days
2010	29 days
2011	1 day
2012	n/a
2013	7 days
2014	2 days
2015	1 day
2016	18 days
2017	29 days
2018	19 days
2019	13 days
2020	20 days
2021	12 days
2022	n/a

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

111 years, 1893 to 2008

A day with at least 64.8 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 187.0 mm (7.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Hermann: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	64.8 mm (2.6 in)
5 years	87.8 mm (3.5 in)
10 years	106.3 mm (4.2 in)
25 years	134.2 mm (5.3 in)
50 years	158.8 mm (6.3 in)
100 years	187.0 mm (7.4 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 111 years of values from 1893 to 2008.

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: 228.6 mm (9.0 in) in 1957; 171.2 mm (6.7 in) in 1905; 161.3 mm (6.4 in) in 1982.

Download the Data

Data for Hermann standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hermann 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a