Barkhamsted Weather Records (USC00060299)

Record envelope, standing records and threshold days for Barkhamsted (USC00060299), Connecticut, United States, with 95 years of record.

Key Facts for Barkhamsted

Barkhamsted (USC00060299) is a weather station in Connecticut, United States at 41.92 latitude and -72.96 longitude, 216 m (710 ft) above sea level.
The station reports from 1932 to 2026, 95 years of record.
1,464 records set at Barkhamsted still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Barkhamsted set a daily record precipitation of 74.7 mm (2.9 in) on 3 August 2026.

About the Station

Location: Connecticut, United States, 41.92 latitude, -72.96 longitude.
Elevation: 216 m (710 ft).
Period of record: 1932 to 2026, 95 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

27 days at or beyond a record

The band shows the record high and record low for each calendar day at Barkhamsted. The lines show the 2026 daily maximum and minimum. 27 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Barkhamsted, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	19.4 C (66.9 F)	-23.9 C (-11.0 F)	8.3 C (46.9 F)	-20.0 C (-4.0 F)
Feb	25.6 C (78.1 F)	-28.9 C (-20.0 F)	8.3 C (46.9 F)	-21.1 C (-6.0 F)
Mar	26.7 C (80.1 F)	-22.2 C (-8.0 F)	23.9 C (75.0 F)	-14.4 C (6.1 F)
Apr	33.9 C (93.0 F)	-8.9 C (16.0 F)	31.1 C (88.0 F)	-3.3 C (26.1 F)
May	34.4 C (93.9 F)	-2.2 C (28.0 F)	34.4 C (93.9 F)	2.8 C (37.0 F)
Jun	36.7 C (98.1 F)	3.3 C (37.9 F)	33.3 C (91.9 F)	3.9 C (39.0 F)
Jul	37.8 C (100.0 F)	10.0 C (50.0 F)	37.8 C (100.0 F)	10.6 C (51.1 F)
Aug	36.1 C (97.0 F)	6.7 C (44.1 F)	33.3 C (91.9 F)	11.1 C (52.0 F)
Sep	35.6 C (96.1 F)	0.0 C (32.0 F)	24.4 C (75.9 F)	10.0 C (50.0 F)
Oct	30.0 C (86.0 F)	-7.2 C (19.0 F)	27.2 C (81.0 F)	5.0 C (41.0 F)
Nov	27.2 C (81.0 F)	-16.7 C (1.9 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-19.4 C (-2.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Barkhamsted still stand. 2015 holds the most, with 127.

All-Time Record Progression

11 new records

11 all-time records were set at Barkhamsted between 5 March 1993 and 9 February 2013. Each dot is a new record.

When Barkhamsted set new all-time records
Date	Kind	Detail
1993-03-05	Record snow depth	Record snow depth 27.9 cm (11.0 in)
1993-03-06	Record snow depth	Record snow depth 30.5 cm (12.0 in)
1993-03-11	Record snow depth	Record snow depth 35.6 cm (14.0 in)
1993-03-14	Record daily snowfall	Record daily snowfall 35.6 cm (14.0 in)
1993-03-14	Record snow depth	Record snow depth 48.3 cm (19.0 in)
1994-02-12	Record snow depth	Record snow depth 53.3 cm (21.0 in)
1994-03-04	Record snow depth	Record snow depth 63.5 cm (25.0 in)
1996-01-08	Record snow depth	Record snow depth 99.1 cm (39.0 in)
1996-01-13	Record snow depth	Record snow depth 116.8 cm (46.0 in)
2001-02-06	Record daily snowfall	Record daily snowfall 45.7 cm (18.0 in)
2013-02-09	Record daily snowfall	Record daily snowfall 68.6 cm (27.0 in)

Wettest Day of Each Month

Aug: 272.8 mm (10.7 in)

The wettest day on record for each calendar month at Barkhamsted. The most was 272.8 mm (10.7 in) on 19 August 1955.

Record daily precipitation for each month at Barkhamsted
Month	Record daily precipitation (mm)	Date
Jan	82.3 mm (3.2 in)	10 January 2024
Feb	80.8 mm (3.2 in)	21 February 1981
Mar	109.0 mm (4.3 in)	22 March 1980
Apr	126.0 mm (5.0 in)	16 April 2007
May	92.2 mm (3.6 in)	13 May 2006
Jun	136.4 mm (5.4 in)	6 June 1982
Jul	80.0 mm (3.1 in)	14 July 1996
Aug	272.8 mm (10.7 in)	19 August 1955
Sep	153.7 mm (6.1 in)	17 September 1999
Oct	128.3 mm (5.1 in)	9 October 2005
Nov	101.6 mm (4.0 in)	26 November 1950
Dec	156.7 mm (6.2 in)	31 December 1948

Period of Record Coverage

2011 to 2026

16 years of record at Barkhamsted, 2011 to 2026. 1 years have data for under 90 percent of days and are left out of rankings: 2026.

Days with data per year at Barkhamsted
Year	Days with data	Share of year	Complete
2011	364	100%	Yes
2012	364	99%	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	347	95%	Yes
2021	330	90%	Yes
2022	364	100%	Yes
2023	333	91%	Yes
2024	364	99%	Yes
2025	365	100%	Yes
2026	254	70%	No

Latest Records

Latest records at Barkhamsted
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 August 2026	Barkhamsted, US	daily rain	74.7 mm (2.9 in)	30.0 mm (1.2 in)	5 years	27 of 100 (Routine)
30 July 2026	Barkhamsted, US	daily rain	49.5 mm (1.9 in)	13.2 mm (0.5 in)	81 years	43 of 100 (Notable)
23 February 2026	Barkhamsted, US	daily snowfall	25.4 cm (10.0 in)	3.8 cm (1.5 in)	18 years	18 of 100 (Routine)
23 February 2026	Barkhamsted, US	daily snow depth (Tie)	48.3 cm (19.0 in)	tie	11 years	3 of 100 (Routine)
26 January 2026	Barkhamsted, US	daily snow depth	48.3 cm (19.0 in)	5.1 cm (2.0 in)	15 years	16 of 100 (Routine)
26 January 2026	Barkhamsted, US	monthly snowfall (Tie)	35.6 cm (14.0 in)	tie	15 years	5 of 100 (Routine)
22 January 2026	Barkhamsted, US	daily snowfall (Tie)	2.5 cm (1.0 in)	tie	24 years	4 of 100 (Routine)
18 January 2026	Barkhamsted, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	15 years	3 of 100 (Routine)
31 October 2025	Barkhamsted, US	daily rain	78.0 mm (3.1 in)	28.0 mm (1.1 in)	86 years	51 of 100 (Notable)
21 August 2025	Barkhamsted, US	daily rain	45.2 mm (1.8 in)	16.5 mm (0.6 in)	20 years	24 of 100 (Routine)
12 April 2025	Barkhamsted, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	91 years	46 of 100 (Notable)
12 April 2025	Barkhamsted, US	daily snow depth	5.1 cm (2.0 in)	5.1 cm (2.0 in)	76 years	20 of 100 (Routine)
6 March 2025	Barkhamsted, US	daily rain	40.6 mm (1.6 in)	10.1 mm (0.4 in)	82 years	40 of 100 (Notable)
16 February 2025	Barkhamsted, US	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	12 years	14 of 100 (Routine)
8 December 2024	Barkhamsted, US	daily snowfall (Tie)	2.5 cm (1.0 in)	tie	17 years	3 of 100 (Routine)
5 December 2024	Barkhamsted, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	76 years	45 of 100 (Notable)
23 June 2024	Barkhamsted, US	daily rain	31.2 mm (1.2 in)	1.2 mm (0.05 in)	21 years	15 of 100 (Routine)
4 April 2024	Barkhamsted, US	daily snowfall	5.1 cm (2.0 in)	2.6 cm (1.0 in)	8 years	16 of 100 (Routine)
24 March 2024	Barkhamsted, US	daily rain	61.5 mm (2.4 in)	35.3 mm (1.4 in)	31 years	45 of 100 (Notable)
29 January 2024	Barkhamsted, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	1 year	2 of 100 (Routine)

Climate Trend

13 complete years, 2011 to 2025

One stripe for each of 13 complete years at Barkhamsted, 2011 to 2025. Blue stripes are years cooler than the station's own mean of 9.7 C (49.5 F); red stripes are warmer. The coolest year was 2014, at 8.5 C (47.2 F), and the warmest was 2024, at 10.8 C (51.5 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Barkhamsted as warming stripes, 2011 to 2025
Year	Annual mean temperature	Difference from the station mean
2011	9.7 C	-0.01 C
2012	10.7 C	+1.01 C
2013	9.2 C	-0.56 C
2014	8.5 C	-1.25 C
2015	9.2 C	-0.50 C
2016	10.4 C	+0.64 C
2017	9.6 C	-0.13 C
2018	9.4 C	-0.36 C
2019	8.8 C	-0.95 C
2020	10.3 C	+0.62 C
2022	9.9 C	+0.19 C
2024	10.8 C	+1.12 C
2025	9.9 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

1932 to 2026

Yearly extremes at Barkhamsted: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	2026	35.6 C (96.1 F)	16
Coldest night (TNn)	-28.9 C (-20.0 F)	2016	-21.6 C (-7.0 F)	16
Wettest day (Rx1day)	272.8 mm (10.7 in)	1955	73.7 mm (2.9 in)	95
Wettest five days (Rx5day)	405.6 mm (16.0 in)	1955	107.7 mm (4.2 in)	95
Longest dry spell (CDD)	35 days	1947	17 days	95

Hottest day (TXx)

The hottest day of the year at Barkhamsted, 1932 to 2026. The record is 37.8 C (100.0 F) in 2026, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at Barkhamsted by year
Year	Hottest day (TXx)
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
1945	n/a
1946	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	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	37.2 C (99.0 F)
2012	36.7 C (98.1 F)
2013	35.0 C (95.0 F)
2014	32.2 C (90.0 F)
2015	35.6 C (96.1 F)
2016	35.6 C (96.1 F)
2017	34.4 C (93.9 F)
2018	36.7 C (98.1 F)
2019	35.6 C (96.1 F)
2020	35.6 C (96.1 F)
2021	36.1 C (97.0 F)
2022	36.7 C (98.1 F)
2023	34.4 C (93.9 F)
2024	35.6 C (96.1 F)
2025	36.7 C (98.1 F)
2026	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Barkhamsted, 1932 to 2026. The record is -28.9 C (-20.0 F) in 2016, marked on the chart; the median year is -21.6 C (-7.0 F).

Coldest night (TNn) at Barkhamsted by year
Year	Coldest night (TNn)
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
1945	n/a
1946	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	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	-23.3 C (-9.9 F)
2012	-18.3 C (-0.9 F)
2013	-20.0 C (-4.0 F)
2014	-22.2 C (-8.0 F)
2015	-25.6 C (-14.1 F)
2016	-28.9 C (-20.0 F)
2017	-19.4 C (-2.9 F)
2018	-22.8 C (-9.0 F)
2019	-24.4 C (-11.9 F)
2020	-16.7 C (1.9 F)
2021	-14.4 C (6.1 F)
2022	-21.1 C (-6.0 F)
2023	-25.6 C (-14.1 F)
2024	-18.9 C (-2.0 F)
2025	-23.9 C (-11.0 F)
2026	-21.1 C (-6.0 F)

Wettest day (Rx1day)

The wettest day of the year at Barkhamsted, 1932 to 2026. The record is 272.8 mm (10.7 in) in 1955, marked on the chart; the median year is 73.7 mm (2.9 in).

Wettest day (Rx1day) at Barkhamsted by year
Year	Wettest day (Rx1day)
1932	63.2 mm (2.5 in)
1933	61.5 mm (2.4 in)
1934	74.9 mm (2.9 in)
1935	64.0 mm (2.5 in)
1936	86.4 mm (3.4 in)
1937	58.2 mm (2.3 in)
1938	88.9 mm (3.5 in)
1939	65.5 mm (2.6 in)
1940	64.5 mm (2.5 in)
1941	72.9 mm (2.9 in)
1942	63.5 mm (2.5 in)
1943	71.4 mm (2.8 in)
1944	120.4 mm (4.7 in)
1945	74.4 mm (2.9 in)
1946	70.6 mm (2.8 in)
1947	73.9 mm (2.9 in)
1948	156.7 mm (6.2 in)
1949	56.6 mm (2.2 in)
1950	101.6 mm (4.0 in)
1951	65.3 mm (2.6 in)
1952	81.5 mm (3.2 in)
1953	46.5 mm (1.8 in)
1954	64.8 mm (2.6 in)
1955	272.8 mm (10.7 in)
1956	59.9 mm (2.4 in)
1957	47.8 mm (1.9 in)
1958	58.4 mm (2.3 in)
1959	54.6 mm (2.1 in)
1960	99.6 mm (3.9 in)
1961	42.2 mm (1.7 in)
1962	67.3 mm (2.6 in)
1963	49.0 mm (1.9 in)
1964	32.3 mm (1.3 in)
1965	37.8 mm (1.5 in)
1966	72.6 mm (2.9 in)
1967	53.1 mm (2.1 in)
1968	77.0 mm (3.0 in)
1969	131.1 mm (5.2 in)
1970	56.1 mm (2.2 in)
1971	83.8 mm (3.3 in)
1972	67.8 mm (2.7 in)
1973	82.3 mm (3.2 in)
1974	106.7 mm (4.2 in)
1975	99.3 mm (3.9 in)
1976	88.9 mm (3.5 in)
1977	76.2 mm (3.0 in)
1978	60.5 mm (2.4 in)
1979	76.2 mm (3.0 in)
1980	109.0 mm (4.3 in)
1981	80.8 mm (3.2 in)
1982	136.4 mm (5.4 in)
1983	74.7 mm (2.9 in)
1984	76.7 mm (3.0 in)
1985	83.1 mm (3.3 in)
1986	97.8 mm (3.9 in)
1987	102.4 mm (4.0 in)
1988	59.4 mm (2.3 in)
1989	68.6 mm (2.7 in)
1990	85.3 mm (3.4 in)
1991	110.7 mm (4.4 in)
1992	108.0 mm (4.3 in)
1993	52.6 mm (2.1 in)
1994	47.8 mm (1.9 in)
1995	74.2 mm (2.9 in)
1996	88.9 mm (3.5 in)
1997	55.9 mm (2.2 in)
1998	62.5 mm (2.5 in)
1999	153.7 mm (6.1 in)
2000	72.4 mm (2.9 in)
2001	52.3 mm (2.1 in)
2002	46.0 mm (1.8 in)
2003	62.2 mm (2.4 in)
2004	59.9 mm (2.4 in)
2005	128.3 mm (5.1 in)
2006	92.2 mm (3.6 in)
2007	126.0 mm (5.0 in)
2008	78.7 mm (3.1 in)
2009	51.8 mm (2.0 in)
2010	87.4 mm (3.4 in)
2011	127.0 mm (5.0 in)
2012	71.6 mm (2.8 in)
2013	96.8 mm (3.8 in)
2014	72.6 mm (2.9 in)
2015	73.7 mm (2.9 in)
2016	64.8 mm (2.6 in)
2017	109.2 mm (4.3 in)
2018	70.6 mm (2.8 in)
2019	60.2 mm (2.4 in)
2020	56.1 mm (2.2 in)
2021	103.9 mm (4.1 in)
2022	56.4 mm (2.2 in)
2023	84.1 mm (3.3 in)
2024	82.3 mm (3.2 in)
2025	78.0 mm (3.1 in)
2026	74.7 mm (2.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Barkhamsted, 1932 to 2026. The record is 405.6 mm (16.0 in) in 1955, marked on the chart; the median year is 107.7 mm (4.2 in).

Wettest five days (Rx5day) at Barkhamsted by year
Year	Wettest five days (Rx5day)
1932	91.7 mm (3.6 in)
1933	95.8 mm (3.8 in)
1934	117.6 mm (4.6 in)
1935	69.8 mm (2.7 in)
1936	104.2 mm (4.1 in)
1937	91.2 mm (3.6 in)
1938	252.7 mm (9.9 in)
1939	87.9 mm (3.5 in)
1940	72.9 mm (2.9 in)
1941	74.1 mm (2.9 in)
1942	97.5 mm (3.8 in)
1943	97.5 mm (3.8 in)
1944	163.6 mm (6.4 in)
1945	110.8 mm (4.4 in)
1946	176.8 mm (7.0 in)
1947	151.9 mm (6.0 in)
1948	183.6 mm (7.2 in)
1949	216.4 mm (8.5 in)
1950	116.4 mm (4.6 in)
1951	104.9 mm (4.1 in)
1952	99.6 mm (3.9 in)
1953	106.9 mm (4.2 in)
1954	114.6 mm (4.5 in)
1955	405.6 mm (16.0 in)
1956	60.7 mm (2.4 in)
1957	71.4 mm (2.8 in)
1958	118.8 mm (4.7 in)
1959	107.7 mm (4.2 in)
1960	137.4 mm (5.4 in)
1961	83.1 mm (3.3 in)
1962	85.9 mm (3.4 in)
1963	84.1 mm (3.3 in)
1964	55.6 mm (2.2 in)
1965	51.3 mm (2.0 in)
1966	75.4 mm (3.0 in)
1967	76.5 mm (3.0 in)
1968	94.8 mm (3.7 in)
1969	142.8 mm (5.6 in)
1970	98.2 mm (3.9 in)
1971	101.6 mm (4.0 in)
1972	124.7 mm (4.9 in)
1973	152.7 mm (6.0 in)
1974	110.5 mm (4.4 in)
1975	224.0 mm (8.8 in)
1976	120.8 mm (4.8 in)
1977	105.4 mm (4.1 in)
1978	81.1 mm (3.2 in)
1979	141.2 mm (5.6 in)
1980	138.2 mm (5.4 in)
1981	142.8 mm (5.6 in)
1982	171.2 mm (6.7 in)
1983	140.5 mm (5.5 in)
1984	233.2 mm (9.2 in)
1985	115.4 mm (4.5 in)
1986	189.2 mm (7.4 in)
1987	145.9 mm (5.7 in)
1988	111.0 mm (4.4 in)
1989	136.7 mm (5.4 in)
1990	88.9 mm (3.5 in)
1991	148.3 mm (5.8 in)
1992	142.1 mm (5.6 in)
1993	76.5 mm (3.0 in)
1994	80.8 mm (3.2 in)
1995	93.5 mm (3.7 in)
1996	116.6 mm (4.6 in)
1997	72.9 mm (2.9 in)
1998	89.3 mm (3.5 in)
1999	175.1 mm (6.9 in)
2000	111.0 mm (4.4 in)
2001	96.3 mm (3.8 in)
2002	93.2 mm (3.7 in)
2003	94.3 mm (3.7 in)
2004	73.9 mm (2.9 in)
2005	165.1 mm (6.5 in)
2006	122.4 mm (4.8 in)
2007	181.4 mm (7.1 in)
2008	101.1 mm (4.0 in)
2009	102.6 mm (4.0 in)
2010	178.9 mm (7.0 in)
2011	204.5 mm (8.1 in)
2012	78.2 mm (3.1 in)
2013	119.9 mm (4.7 in)
2014	85.8 mm (3.4 in)
2015	76.0 mm (3.0 in)
2016	74.3 mm (2.9 in)
2017	114.7 mm (4.5 in)
2018	149.7 mm (5.9 in)
2019	78.5 mm (3.1 in)
2020	75.9 mm (3.0 in)
2021	131.0 mm (5.2 in)
2022	100.8 mm (4.0 in)
2023	116.4 mm (4.6 in)
2024	111.8 mm (4.4 in)
2025	100.8 mm (4.0 in)
2026	129.5 mm (5.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Barkhamsted, 1932 to 2026. The record is 35 days in 1947, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Barkhamsted by year
Year	Longest dry spell (CDD)
1932	14 days
1933	19 days
1934	16 days
1935	23 days
1936	29 days
1937	15 days
1938	21 days
1939	20 days
1940	22 days
1941	19 days
1942	20 days
1943	19 days
1944	18 days
1945	12 days
1946	18 days
1947	35 days
1948	27 days
1949	19 days
1950	16 days
1951	12 days
1952	25 days
1953	21 days
1954	13 days
1955	17 days
1956	19 days
1957	16 days
1958	20 days
1959	13 days
1960	18 days
1961	15 days
1962	14 days
1963	23 days
1964	27 days
1965	16 days
1966	26 days
1967	17 days
1968	26 days
1969	17 days
1970	14 days
1971	17 days
1972	16 days
1973	14 days
1974	15 days
1975	19 days
1976	17 days
1977	14 days
1978	13 days
1979	13 days
1980	23 days
1981	18 days
1982	15 days
1983	17 days
1984	19 days
1985	19 days
1986	14 days
1987	12 days
1988	14 days
1989	15 days
1990	15 days
1991	19 days
1992	15 days
1993	12 days
1994	11 days
1995	24 days
1996	15 days
1997	11 days
1998	13 days
1999	17 days
2000	12 days
2001	20 days
2002	16 days
2003	16 days
2004	14 days
2005	14 days
2006	18 days
2007	17 days
2008	22 days
2009	12 days
2010	13 days
2011	17 days
2012	20 days
2013	18 days
2014	18 days
2015	22 days
2016	16 days
2017	14 days
2018	17 days
2019	11 days
2020	16 days
2021	17 days
2022	11 days
2023	21 days
2024	21 days
2025	16 days
2026	13 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

90 years, 1933 to 2025

A day with at least 72.2 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 192.9 mm (7.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Barkhamsted: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	72.2 mm (2.8 in)
5 years	96.7 mm (3.8 in)
10 years	115.7 mm (4.6 in)
25 years	143.3 mm (5.6 in)
50 years	166.8 mm (6.6 in)
100 years	192.9 mm (7.6 in)	Longer than the 90 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, 90 years of values from 1933 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: 272.8 mm (10.7 in) in 1955; 156.7 mm (6.2 in) in 1948; 153.7 mm (6.1 in) in 1999.

Download the Data

Data for Barkhamsted standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Barkhamsted 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 2026-10-14 (14 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).