Errol Weather Records (USC00272842)

Record envelope, standing records and threshold days for Errol (USC00272842), New Hampshire, United States, with 87 years of record.

Key Facts for Errol

Errol (USC00272842) is a weather station in New Hampshire, United States at 44.79 latitude and -71.12 longitude, 387 m (1,270 ft) above sea level.
The station reports from 1927 to 2013, 87 years of record.
1,464 records set at Errol still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Errol set a daily record precipitation of 28.4 mm (1.1 in) on 12 June 2013.

About the Station

Location: New Hampshire, United States, 44.79 latitude, -71.12 longitude.
Elevation: 387 m (1,270 ft).
Period of record: 1927 to 2013, 87 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 Errol. 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 Errol, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	11.1 C (52.0 F)	-30.0 C (-22.0 F)	n/a	n/a
Feb	12.8 C (55.0 F)	-26.7 C (-16.1 F)	n/a	n/a
Mar	27.2 C (81.0 F)	-22.2 C (-8.0 F)	n/a	n/a
Apr	28.9 C (84.0 F)	-13.3 C (8.1 F)	n/a	n/a
May	30.0 C (86.0 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	32.8 C (91.0 F)	1.1 C (34.0 F)	n/a	n/a
Jul	33.3 C (91.9 F)	4.4 C (39.9 F)	n/a	n/a
Aug	32.2 C (90.0 F)	1.7 C (35.1 F)	n/a	n/a
Sep	31.1 C (88.0 F)	-6.7 C (19.9 F)	n/a	n/a
Oct	28.3 C (82.9 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	21.7 C (71.1 F)	-17.8 C (0.0 F)	n/a	n/a
Dec	13.9 C (57.0 F)	-20.6 C (-5.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Errol still stand. 2012 holds the most, with 555.

All-Time Record Progression

1 new records

1 all-time records were set at Errol between 6 December 2003 and 6 December 2003. Each dot is a new record.

Wettest Day of Each Month

May: 116.3 mm (4.6 in)

The wettest day on record for each calendar month at Errol. The most was 116.3 mm (4.6 in) on 28 May 1940.

Record daily precipitation for each month at Errol
Month	Record daily precipitation (mm)	Date
Jan	40.1 mm (1.6 in)	26 January 1986
Feb	47.8 mm (1.9 in)	13 February 1988
Mar	44.5 mm (1.8 in)	9 March 2008
Apr	48.8 mm (1.9 in)	29 April 2008
May	116.3 mm (4.6 in)	28 May 1940
Jun	78.5 mm (3.1 in)	15 June 1942
Jul	70.9 mm (2.8 in)	27 July 1939
Aug	76.7 mm (3.0 in)	16 August 1938
Sep	94.5 mm (3.7 in)	16 September 1999
Oct	54.1 mm (2.1 in)	16 October 2005
Nov	64.5 mm (2.5 in)	26 November 1950
Dec	97.8 mm (3.9 in)	27 December 1969

Period of Record Coverage

1978 to 2013

5 years of record at Errol, 1978 to 2013. 3 years have data for under 90 percent of days and are left out of rankings: 1978, 1980, 2013.

Latest Records

Latest records at Errol
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 June 2013	Errol, US	daily rain	28.4 mm (1.1 in)	9.6 mm (0.38 in)	74 years	40 of 100 (Notable)
26 May 2013	Errol, US	daily rain	24.9 mm (1.0 in)	3.8 mm (0.15 in)	43 years	20 of 100 (Routine)
13 April 2013	Errol, US	daily snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	82 years	20 of 100 (Routine)
3 March 2013	Errol, US	daily snowfall	8.9 cm (3.5 in)	1.3 cm (0.5 in)	0 years	9 of 100 (Routine)
24 February 2013	Errol, US	daily snowfall	11.4 cm (4.5 in)	3.8 cm (1.5 in)	20 years	18 of 100 (Routine)
20 February 2013	Errol, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	36 years	24 of 100 (Routine)
9 February 2013	Errol, US	daily snowfall	20.3 cm (8.0 in)	7.6 cm (3.0 in)	32 years	26 of 100 (Routine)
31 January 2013	Errol, US	daily rain	19.8 mm (0.8 in)	6.1 mm (0.24 in)	22 years	20 of 100 (Routine)
17 January 2013	Errol, US	daily snowfall (Tie)	10.2 cm (4.0 in)	tie	22 years	3 of 100 (Routine)
19 December 2012	Errol, US	daily rain	16.5 mm (0.6 in)	4.6 mm (0.18 in)	83 years	20 of 100 (Routine)
5 September 2012	Errol, US	daily rain	59.4 mm (2.3 in)	18.8 mm (0.7 in)	1 year	25 of 100 (Routine)
3 June 2012	Errol, US	daily rain	53.1 mm (2.1 in)	14.7 mm (0.6 in)	65 years	43 of 100 (Notable)
30 May 2012	Errol, US	daily rain	66.0 mm (2.6 in)	25.4 mm (1.0 in)	28 years	46 of 100 (Notable)
30 March 2012	Errol, US	daily snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	39 years	20 of 100 (Routine)
3 March 2012	Errol, US	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	36 years	21 of 100 (Routine)
2 March 2012	Errol, US	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	30 years	27 of 100 (Routine)
1 March 2012	Errol, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	31 years	4 of 100 (Routine)
25 February 2012	Errol, US	daily snowfall (Tie)	17.8 cm (7.0 in)	tie	1 year	2 of 100 (Routine)
27 January 2012	Errol, US	daily snowfall	12.7 cm (5.0 in)	11.9 cm (4.7 in)	0 years	23 of 100 (Routine)
25 November 2011	Errol, US	daily snow depth	12.7 cm (5.0 in)	5.1 cm (2.0 in)	32 years	22 of 100 (Routine)

Extremes by Year

1927 to 2013

Yearly extremes at Errol: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.3 C (91.9 F)	2012	32.2 C (90.0 F)	5
Coldest night (TNn)	-30.0 C (-22.0 F)	2011	-26.7 C (-16.1 F)	5
Wettest day (Rx1day)	116.3 mm (4.6 in)	1940	46.5 mm (1.8 in)	87
Wettest five days (Rx5day)	129.0 mm (5.1 in)	2012	72.9 mm (2.9 in)	87
Longest dry spell (CDD)	24 days	1961	14 days	87

Hottest day (TXx)

The hottest day of the year at Errol, 1927 to 2013. The record is 33.3 C (91.9 F) in 2012, marked on the chart; the median year is 32.2 C (90.0 F).

Hottest day (TXx) at Errol by year
Year	Hottest day (TXx)
1927	n/a
1928	n/a
1929	n/a
1930	n/a
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
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	13.3 C (55.9 F)
1979	n/a
1980	24.4 C (75.9 F)
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	32.8 C (91.0 F)
2012	33.3 C (91.9 F)
2013	32.2 C (90.0 F)

Coldest night (TNn)

The coldest night of the year at Errol, 1927 to 2013. The record is -30.0 C (-22.0 F) in 2011, marked on the chart; the median year is -26.7 C (-16.1 F).

Coldest night (TNn) at Errol by year
Year	Coldest night (TNn)
1927	n/a
1928	n/a
1929	n/a
1930	n/a
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
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	-13.3 C (8.1 F)
1979	n/a
1980	-6.7 C (19.9 F)
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	-30.0 C (-22.0 F)
2012	-26.7 C (-16.1 F)
2013	-30.0 C (-22.0 F)

Wettest day (Rx1day)

The wettest day of the year at Errol, 1927 to 2013. The record is 116.3 mm (4.6 in) in 1940, marked on the chart; the median year is 46.5 mm (1.8 in).

Wettest day (Rx1day) at Errol by year
Year	Wettest day (Rx1day)
1927	64.0 mm (2.5 in)
1928	59.9 mm (2.4 in)
1929	28.4 mm (1.1 in)
1930	34.8 mm (1.4 in)
1931	45.5 mm (1.8 in)
1932	62.2 mm (2.4 in)
1933	43.7 mm (1.7 in)
1934	46.2 mm (1.8 in)
1935	40.1 mm (1.6 in)
1936	31.5 mm (1.2 in)
1937	66.5 mm (2.6 in)
1938	76.7 mm (3.0 in)
1939	70.9 mm (2.8 in)
1940	116.3 mm (4.6 in)
1941	36.3 mm (1.4 in)
1942	78.5 mm (3.1 in)
1943	50.5 mm (2.0 in)
1944	64.8 mm (2.6 in)
1945	35.8 mm (1.4 in)
1946	75.4 mm (3.0 in)
1947	46.5 mm (1.8 in)
1948	39.1 mm (1.5 in)
1949	35.1 mm (1.4 in)
1950	64.5 mm (2.5 in)
1951	49.0 mm (1.9 in)
1952	58.4 mm (2.3 in)
1953	24.9 mm (1.0 in)
1954	70.6 mm (2.8 in)
1955	39.1 mm (1.5 in)
1956	33.5 mm (1.3 in)
1957	46.0 mm (1.8 in)
1958	46.7 mm (1.8 in)
1959	31.2 mm (1.2 in)
1960	77.0 mm (3.0 in)
1961	25.1 mm (1.0 in)
1962	34.3 mm (1.4 in)
1963	47.0 mm (1.9 in)
1964	40.9 mm (1.6 in)
1965	38.1 mm (1.5 in)
1966	40.9 mm (1.6 in)
1967	48.0 mm (1.9 in)
1968	35.3 mm (1.4 in)
1969	97.8 mm (3.9 in)
1970	40.1 mm (1.6 in)
1971	34.3 mm (1.4 in)
1972	41.9 mm (1.6 in)
1973	50.8 mm (2.0 in)
1974	39.9 mm (1.6 in)
1975	43.2 mm (1.7 in)
1976	37.6 mm (1.5 in)
1977	66.5 mm (2.6 in)
1978	45.0 mm (1.8 in)
1979	34.5 mm (1.4 in)
1980	29.2 mm (1.1 in)
1981	45.2 mm (1.8 in)
1982	48.0 mm (1.9 in)
1983	47.0 mm (1.9 in)
1984	51.8 mm (2.0 in)
1985	50.3 mm (2.0 in)
1986	40.1 mm (1.6 in)
1987	58.4 mm (2.3 in)
1988	47.8 mm (1.9 in)
1989	44.5 mm (1.8 in)
1990	68.8 mm (2.7 in)
1991	63.0 mm (2.5 in)
1992	59.7 mm (2.4 in)
1993	30.2 mm (1.2 in)
1994	33.3 mm (1.3 in)
1995	42.9 mm (1.7 in)
1996	53.8 mm (2.1 in)
1997	39.4 mm (1.6 in)
1998	35.1 mm (1.4 in)
1999	94.5 mm (3.7 in)
2000	47.8 mm (1.9 in)
2001	27.7 mm (1.1 in)
2002	54.4 mm (2.1 in)
2003	48.3 mm (1.9 in)
2004	33.3 mm (1.3 in)
2005	73.2 mm (2.9 in)
2006	40.4 mm (1.6 in)
2007	62.7 mm (2.5 in)
2008	61.7 mm (2.4 in)
2009	56.4 mm (2.2 in)
2010	65.0 mm (2.6 in)
2011	65.3 mm (2.6 in)
2012	66.0 mm (2.6 in)
2013	33.3 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Errol, 1927 to 2013. The record is 129.0 mm (5.1 in) in 2012, marked on the chart; the median year is 72.9 mm (2.9 in).

Wettest five days (Rx5day) at Errol by year
Year	Wettest five days (Rx5day)
1927	84.4 mm (3.3 in)
1928	79.9 mm (3.1 in)
1929	45.7 mm (1.8 in)
1930	72.9 mm (2.9 in)
1931	87.7 mm (3.5 in)
1932	102.3 mm (4.0 in)
1933	76.5 mm (3.0 in)
1934	41.7 mm (1.6 in)
1935	57.9 mm (2.3 in)
1936	60.5 mm (2.4 in)
1937	71.6 mm (2.8 in)
1938	90.1 mm (3.5 in)
1939	89.9 mm (3.5 in)
1940	125.4 mm (4.9 in)
1941	49.0 mm (1.9 in)
1942	119.1 mm (4.7 in)
1943	106.4 mm (4.2 in)
1944	70.7 mm (2.8 in)
1945	56.1 mm (2.2 in)
1946	83.8 mm (3.3 in)
1947	84.7 mm (3.3 in)
1948	57.9 mm (2.3 in)
1949	68.2 mm (2.7 in)
1950	91.2 mm (3.6 in)
1951	62.9 mm (2.5 in)
1952	88.1 mm (3.5 in)
1953	57.9 mm (2.3 in)
1954	121.7 mm (4.8 in)
1955	60.4 mm (2.4 in)
1956	62.2 mm (2.4 in)
1957	67.2 mm (2.6 in)
1958	66.0 mm (2.6 in)
1959	70.3 mm (2.8 in)
1960	100.0 mm (3.9 in)
1961	66.2 mm (2.6 in)
1962	77.1 mm (3.0 in)
1963	63.7 mm (2.5 in)
1964	98.1 mm (3.9 in)
1965	51.8 mm (2.0 in)
1966	73.5 mm (2.9 in)
1967	65.7 mm (2.6 in)
1968	52.4 mm (2.1 in)
1969	117.6 mm (4.6 in)
1970	51.3 mm (2.0 in)
1971	51.3 mm (2.0 in)
1972	53.4 mm (2.1 in)
1973	74.9 mm (2.9 in)
1974	72.4 mm (2.9 in)
1975	68.8 mm (2.7 in)
1976	67.3 mm (2.6 in)
1977	108.4 mm (4.3 in)
1978	70.7 mm (2.8 in)
1979	64.5 mm (2.5 in)
1980	53.4 mm (2.1 in)
1981	103.5 mm (4.1 in)
1982	64.3 mm (2.5 in)
1983	67.1 mm (2.6 in)
1984	115.8 mm (4.6 in)
1985	67.5 mm (2.7 in)
1986	67.2 mm (2.6 in)
1987	75.7 mm (3.0 in)
1988	64.7 mm (2.5 in)
1989	85.1 mm (3.4 in)
1990	120.9 mm (4.8 in)
1991	81.6 mm (3.2 in)
1992	65.5 mm (2.6 in)
1993	56.7 mm (2.2 in)
1994	44.0 mm (1.7 in)
1995	63.7 mm (2.5 in)
1996	111.2 mm (4.4 in)
1997	66.0 mm (2.6 in)
1998	83.2 mm (3.3 in)
1999	120.4 mm (4.7 in)
2000	86.7 mm (3.4 in)
2001	44.9 mm (1.8 in)
2002	78.5 mm (3.1 in)
2003	72.9 mm (2.9 in)
2004	64.0 mm (2.5 in)
2005	109.2 mm (4.3 in)
2006	89.4 mm (3.5 in)
2007	95.2 mm (3.7 in)
2008	87.9 mm (3.5 in)
2009	74.7 mm (2.9 in)
2010	104.3 mm (4.1 in)
2011	98.4 mm (3.9 in)
2012	129.0 mm (5.1 in)
2013	84.7 mm (3.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Errol, 1927 to 2013. The record is 24 days in 1961, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Errol by year
Year	Longest dry spell (CDD)
1927	15 days
1928	17 days
1929	9 days
1930	14 days
1931	13 days
1932	19 days
1933	10 days
1934	9 days
1935	20 days
1936	11 days
1937	12 days
1938	14 days
1939	20 days
1940	12 days
1941	19 days
1942	11 days
1943	14 days
1944	14 days
1945	11 days
1946	16 days
1947	13 days
1948	14 days
1949	17 days
1950	15 days
1951	12 days
1952	19 days
1953	16 days
1954	9 days
1955	14 days
1956	12 days
1957	15 days
1958	11 days
1959	10 days
1960	11 days
1961	24 days
1962	13 days
1963	14 days
1964	14 days
1965	12 days
1966	14 days
1967	13 days
1968	13 days
1969	12 days
1970	21 days
1971	17 days
1972	14 days
1973	14 days
1974	11 days
1975	14 days
1976	19 days
1977	12 days
1978	17 days
1979	15 days
1980	19 days
1981	14 days
1982	24 days
1983	13 days
1984	15 days
1985	13 days
1986	12 days
1987	22 days
1988	10 days
1989	13 days
1990	12 days
1991	10 days
1992	12 days
1993	8 days
1994	14 days
1995	16 days
1996	11 days
1997	11 days
1998	18 days
1999	15 days
2000	10 days
2001	17 days
2002	12 days
2003	16 days
2004	13 days
2005	15 days
2006	16 days
2007	14 days
2008	13 days
2009	14 days
2010	19 days
2011	11 days
2012	12 days
2013	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

83 years, 1927 to 2012

A day with at least 47.0 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 108.7 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Errol: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	47.0 mm (1.9 in)
5 years	62.0 mm (2.4 in)
10 years	72.5 mm (2.9 in)
25 years	86.5 mm (3.4 in)
50 years	97.4 mm (3.8 in)
100 years	108.7 mm (4.3 in)	Longer than the 83 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, 83 years of values from 1927 to 2012.

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: 116.3 mm (4.6 in) in 1940; 97.8 mm (3.9 in) in 1969; 94.5 mm (3.7 in) in 1999.

Download the Data

Data for Errol standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Errol 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 2026-10-16 (16 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).

Year	Days with data	Share of year	Complete
1978	26	7%	No
1980	27	7%	No
2011	334	92%	Yes
2012	366	100%	Yes
2013	273	75%	No