Chemung Weather Records (USC00301413)

Record envelope, standing records and threshold days for Chemung (USC00301413), New York, United States, with 129 years of record.

Key Facts for Chemung

Chemung (USC00301413) is a weather station in New York, United States at 42.00 latitude and -76.64 longitude, 251 m (822 ft) above sea level.
The station reports from 1888 to 2016, 129 years of record.
1,464 records set at Chemung still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Chemung set a daily record precipitation of 21.8 mm (0.9 in) on 31 October 2016.

About the Station

Location: New York, United States, 42.00 latitude, -76.64 longitude.
Elevation: 251 m (822 ft).
Period of record: 1888 to 2016, 129 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 Chemung. 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 Chemung, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.6 C (60.1 F)	-27.2 C (-17.0 F)	n/a	n/a
Feb	18.3 C (64.9 F)	-29.4 C (-20.9 F)	n/a	n/a
Mar	26.7 C (80.1 F)	-26.1 C (-15.0 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-14.4 C (6.1 F)	n/a	n/a
May	33.9 C (93.0 F)	-3.9 C (25.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	3.9 C (39.0 F)	n/a	n/a
Jul	40.0 C (104.0 F)	5.0 C (41.0 F)	n/a	n/a
Aug	35.0 C (95.0 F)	5.0 C (41.0 F)	n/a	n/a
Sep	34.4 C (93.9 F)	1.1 C (34.0 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-13.9 C (7.0 F)	n/a	n/a
Dec	19.4 C (66.9 F)	-20.6 C (-5.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Chemung still stand. 2013 holds the most, with 225.

All-Time Record Progression

5 new records

5 all-time records were set at Chemung between 26 September 1975 and 8 September 2011. Each dot is a new record.

When Chemung set new all-time records
Date	Kind	Detail
1975-09-26	Record daily precipitation	Record daily precipitation 91.7 mm (3.6 in)
1994-09-27	Record daily precipitation	Record daily precipitation 92.7 mm (3.6 in)
2007-09-09	Record daily precipitation	Record daily precipitation 104.1 mm (4.1 in)
2010-10-01	Record daily precipitation	Record daily precipitation 112.8 mm (4.4 in)
2011-09-08	Record daily precipitation	Record daily precipitation 120.6 mm (4.7 in)

Wettest Day of Each Month

Sep: 120.6 mm (4.7 in)

The wettest day on record for each calendar month at Chemung. The most was 120.6 mm (4.7 in) on 8 September 2011.

Record daily precipitation for each month at Chemung
Month	Record daily precipitation (mm)	Date
Jan	51.1 mm (2.0 in)	20 January 1996
Feb	48.5 mm (1.9 in)	14 February 1971
Mar	55.1 mm (2.2 in)	4 March 1999
Apr	54.9 mm (2.2 in)	3 April 2005
May	62.7 mm (2.5 in)	28 May 1946
Jun	82.3 mm (3.2 in)	10 June 1966
Jul	84.3 mm (3.3 in)	8 July 1987
Aug	86.1 mm (3.4 in)	18 August 1994
Sep	120.6 mm (4.7 in)	8 September 2011
Oct	112.8 mm (4.4 in)	1 October 2010
Nov	54.6 mm (2.1 in)	8 November 1963
Dec	76.2 mm (3.0 in)	27 December 2012

Period of Record Coverage

2009 to 2016

8 years of record at Chemung, 2009 to 2016. 1 years have data for under 90 percent of days and are left out of rankings: 2009.

Latest Records

Latest records at Chemung
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 2016	Chemung, US	daily rain	21.8 mm (0.9 in)	3.0 mm (0.12 in)	40 years	20 of 100 (Routine)
21 October 2016	Chemung, US	daily rain	46.2 mm (1.8 in)	9.4 mm (0.37 in)	21 years	25 of 100 (Routine)
2 October 2016	Chemung, US	daily rain	30.5 mm (1.2 in)	6.9 mm (0.27 in)	73 years	37 of 100 (Notable)
4 April 2016	Chemung, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	67 years	59 of 100 (Notable)
4 April 2016	Chemung, US	daily snowfall	5.3 cm (2.1 in)	2.3 cm (0.9 in)	72 years	36 of 100 (Notable)
3 April 2016	Chemung, US	daily snowfall	10.9 cm (4.3 in)	7.1 cm (2.8 in)	73 years	48 of 100 (Notable)
3 April 2016	Chemung, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	60 years	39 of 100 (Notable)
25 February 2016	Chemung, US	daily rain (Tie)	27.9 mm (1.1 in)	tie	38 years	5 of 100 (Routine)
17 February 2016	Chemung, US	daily rain	29.5 mm (1.2 in)	7.9 mm (0.31 in)	64 years	40 of 100 (Notable)
10 January 2016	Chemung, US	daily rain	16.0 mm (0.6 in)	3.8 mm (0.15 in)	58 years	20 of 100 (Routine)
11 November 2015	Chemung, US	daily rain	42.2 mm (1.7 in)	16.3 mm (0.6 in)	37 years	40 of 100 (Notable)
30 September 2015	Chemung, US	daily rain	49.3 mm (1.9 in)	12.2 mm (0.5 in)	68 years	39 of 100 (Notable)
28 June 2015	Chemung, US	daily rain	37.3 mm (1.5 in)	5.5 mm (0.22 in)	66 years	35 of 100 (Notable)
2 February 2015	Chemung, US	daily snowfall	12.7 cm (5.0 in)	6.9 cm (2.7 in)	75 years	46 of 100 (Notable)
28 November 2014	Chemung, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	57 years	37 of 100 (Notable)
27 November 2014	Chemung, US	daily snowfall	15.2 cm (6.0 in)	5.0 cm (2.0 in)	73 years	42 of 100 (Notable)
27 November 2014	Chemung, US	daily snow depth	15.2 cm (6.0 in)	7.6 cm (3.0 in)	57 years	42 of 100 (Notable)
24 November 2014	Chemung, US	daily rain	20.3 mm (0.8 in)	6.6 mm (0.26 in)	51 years	20 of 100 (Routine)
17 November 2014	Chemung, US	daily snowfall (Tie)	1.3 cm (0.5 in)	tie	45 years	5 of 100 (Routine)
26 June 2014	Chemung, US	daily rain	40.9 mm (1.6 in)	0.3 mm (0.01 in)	64 years	29 of 100 (Routine)

Extremes by Year

1888 to 2016

Yearly extremes at Chemung: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	2011	35.3 C (95.5 F)	8
Coldest night (TNn)	-29.4 C (-20.9 F)	2015	-22.5 C (-8.5 F)	8
Wettest day (Rx1day)	120.6 mm (4.7 in)	2011	47.8 mm (1.9 in)	80
Wettest five days (Rx5day)	205.7 mm (8.1 in)	1972	76.0 mm (3.0 in)	79
Longest dry spell (CDD)	34 days	1943	17 days	79

Hottest day (TXx)

The hottest day of the year at Chemung, 1888 to 2016. The record is 40.0 C (104.0 F) in 2011, marked on the chart; the median year is 35.3 C (95.5 F).

Hottest day (TXx) at Chemung by year
Year	Hottest day (TXx)
1888	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	33.9 C (93.0 F)
2010	35.6 C (96.1 F)
2011	40.0 C (104.0 F)
2012	35.6 C (96.1 F)
2013	35.0 C (95.0 F)
2014	32.8 C (91.0 F)
2015	33.9 C (93.0 F)
2016	37.2 C (99.0 F)

Coldest night (TNn)

The coldest night of the year at Chemung, 1888 to 2016. The record is -29.4 C (-20.9 F) in 2015, marked on the chart; the median year is -22.5 C (-8.5 F).

Coldest night (TNn) at Chemung by year
Year	Coldest night (TNn)
1888	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	-13.9 C (7.0 F)
2010	-21.7 C (-7.1 F)
2011	-27.2 C (-17.0 F)
2012	-17.8 C (0.0 F)
2013	-20.6 C (-5.1 F)
2014	-28.9 C (-20.0 F)
2015	-29.4 C (-20.9 F)
2016	-23.3 C (-9.9 F)

Wettest day (Rx1day)

The wettest day of the year at Chemung, 1888 to 2016. The record is 120.6 mm (4.7 in) in 2011, marked on the chart; the median year is 47.8 mm (1.9 in).

Wettest day (Rx1day) at Chemung by year
Year	Wettest day (Rx1day)
1888	11.2 mm (0.4 in)
1938	16.5 mm (0.6 in)
1939	49.5 mm (1.9 in)
1940	38.4 mm (1.5 in)
1941	38.4 mm (1.5 in)
1942	45.0 mm (1.8 in)
1943	46.7 mm (1.8 in)
1944	53.1 mm (2.1 in)
1945	36.6 mm (1.4 in)
1946	62.7 mm (2.5 in)
1947	50.8 mm (2.0 in)
1948	52.1 mm (2.1 in)
1949	54.9 mm (2.2 in)
1950	47.2 mm (1.9 in)
1951	50.0 mm (2.0 in)
1952	62.2 mm (2.4 in)
1953	51.3 mm (2.0 in)
1954	49.3 mm (1.9 in)
1955	47.2 mm (1.9 in)
1956	44.5 mm (1.8 in)
1957	41.9 mm (1.6 in)
1958	41.7 mm (1.6 in)
1959	50.5 mm (2.0 in)
1960	45.2 mm (1.8 in)
1961	36.6 mm (1.4 in)
1962	34.8 mm (1.4 in)
1963	54.6 mm (2.1 in)
1964	32.0 mm (1.3 in)
1965	29.5 mm (1.2 in)
1966	82.3 mm (3.2 in)
1967	52.1 mm (2.1 in)
1968	66.0 mm (2.6 in)
1969	29.5 mm (1.2 in)
1970	44.7 mm (1.8 in)
1971	48.5 mm (1.9 in)
1972	78.2 mm (3.1 in)
1973	45.7 mm (1.8 in)
1974	39.1 mm (1.5 in)
1975	91.7 mm (3.6 in)
1976	47.8 mm (1.9 in)
1977	53.8 mm (2.1 in)
1978	47.5 mm (1.9 in)
1979	61.0 mm (2.4 in)
1980	47.0 mm (1.9 in)
1981	58.7 mm (2.3 in)
1982	38.4 mm (1.5 in)
1983	56.1 mm (2.2 in)
1984	47.2 mm (1.9 in)
1985	23.1 mm (0.9 in)
1986	41.4 mm (1.6 in)
1987	84.3 mm (3.3 in)
1988	43.7 mm (1.7 in)
1989	50.8 mm (2.0 in)
1990	76.5 mm (3.0 in)
1991	34.5 mm (1.4 in)
1992	44.7 mm (1.8 in)
1993	46.2 mm (1.8 in)
1994	92.7 mm (3.6 in)
1995	44.7 mm (1.8 in)
1996	55.9 mm (2.2 in)
1997	29.5 mm (1.2 in)
1998	53.3 mm (2.1 in)
1999	67.3 mm (2.6 in)
2000	45.7 mm (1.8 in)
2001	73.7 mm (2.9 in)
2002	44.5 mm (1.8 in)
2003	80.3 mm (3.2 in)
2004	73.7 mm (2.9 in)
2005	54.9 mm (2.2 in)
2006	47.8 mm (1.9 in)
2007	104.1 mm (4.1 in)
2008	46.0 mm (1.8 in)
2009	53.8 mm (2.1 in)
2010	112.8 mm (4.4 in)
2011	120.6 mm (4.7 in)
2012	76.2 mm (3.0 in)
2013	38.6 mm (1.5 in)
2014	47.0 mm (1.9 in)
2015	49.3 mm (1.9 in)
2016	46.2 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Chemung, 1888 to 2016. The record is 205.7 mm (8.1 in) in 1972, marked on the chart; the median year is 76.0 mm (3.0 in).

Wettest five days (Rx5day) at Chemung by year
Year	Wettest five days (Rx5day)
1888	n/a
1938	31.0 mm (1.2 in)
1939	62.5 mm (2.5 in)
1940	69.4 mm (2.7 in)
1941	57.4 mm (2.3 in)
1942	94.0 mm (3.7 in)
1943	94.0 mm (3.7 in)
1944	78.7 mm (3.1 in)
1945	51.8 mm (2.0 in)
1946	108.1 mm (4.3 in)
1947	64.7 mm (2.5 in)
1948	56.2 mm (2.2 in)
1949	62.3 mm (2.5 in)
1950	80.0 mm (3.1 in)
1951	68.8 mm (2.7 in)
1952	87.9 mm (3.5 in)
1953	55.1 mm (2.2 in)
1954	61.0 mm (2.4 in)
1955	113.5 mm (4.5 in)
1956	60.7 mm (2.4 in)
1957	65.0 mm (2.6 in)
1958	67.1 mm (2.6 in)
1959	82.0 mm (3.2 in)
1960	82.1 mm (3.2 in)
1961	63.3 mm (2.5 in)
1962	66.1 mm (2.6 in)
1963	89.5 mm (3.5 in)
1964	69.4 mm (2.7 in)
1965	37.1 mm (1.5 in)
1966	83.3 mm (3.3 in)
1967	71.1 mm (2.8 in)
1968	76.2 mm (3.0 in)
1969	68.5 mm (2.7 in)
1970	65.8 mm (2.6 in)
1971	59.7 mm (2.4 in)
1972	205.7 mm (8.1 in)
1973	62.0 mm (2.4 in)
1974	55.1 mm (2.2 in)
1975	160.6 mm (6.3 in)
1976	85.4 mm (3.4 in)
1977	107.4 mm (4.2 in)
1978	123.0 mm (4.8 in)
1979	81.6 mm (3.2 in)
1980	58.5 mm (2.3 in)
1981	86.3 mm (3.4 in)
1982	71.4 mm (2.8 in)
1983	90.6 mm (3.6 in)
1984	76.0 mm (3.0 in)
1985	38.1 mm (1.5 in)
1986	68.6 mm (2.7 in)
1987	93.2 mm (3.7 in)
1988	97.8 mm (3.9 in)
1989	74.7 mm (2.9 in)
1990	84.7 mm (3.3 in)
1991	59.6 mm (2.3 in)
1992	55.4 mm (2.2 in)
1993	70.6 mm (2.8 in)
1994	139.2 mm (5.5 in)
1995	67.5 mm (2.7 in)
1996	104.2 mm (4.1 in)
1997	59.9 mm (2.4 in)
1998	76.0 mm (3.0 in)
1999	81.0 mm (3.2 in)
2000	66.7 mm (2.6 in)
2001	106.4 mm (4.2 in)
2002	86.1 mm (3.4 in)
2003	99.1 mm (3.9 in)
2004	113.7 mm (4.5 in)
2005	86.9 mm (3.4 in)
2006	99.1 mm (3.9 in)
2007	116.6 mm (4.6 in)
2008	84.6 mm (3.3 in)
2009	78.0 mm (3.1 in)
2010	135.6 mm (5.3 in)
2011	185.2 mm (7.3 in)
2012	95.3 mm (3.8 in)
2013	48.8 mm (1.9 in)
2014	51.3 mm (2.0 in)
2015	78.6 mm (3.1 in)
2016	71.6 mm (2.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Chemung, 1888 to 2016. The record is 34 days in 1943, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Chemung by year
Year	Longest dry spell (CDD)
1888	n/a
1938	9 days
1939	17 days
1940	17 days
1941	27 days
1942	21 days
1943	34 days
1944	18 days
1945	13 days
1946	13 days
1947	28 days
1948	14 days
1949	18 days
1950	11 days
1951	16 days
1952	20 days
1953	20 days
1954	15 days
1955	24 days
1956	15 days
1957	16 days
1958	12 days
1959	13 days
1960	12 days
1961	18 days
1962	24 days
1963	23 days
1964	33 days
1965	14 days
1966	16 days
1967	27 days
1968	29 days
1969	26 days
1970	16 days
1971	21 days
1972	12 days
1973	15 days
1974	18 days
1975	17 days
1976	13 days
1977	19 days
1978	13 days
1979	15 days
1980	15 days
1981	11 days
1982	11 days
1983	20 days
1984	17 days
1985	14 days
1986	18 days
1987	21 days
1988	16 days
1989	15 days
1990	11 days
1991	19 days
1992	15 days
1993	12 days
1994	17 days
1995	15 days
1996	19 days
1997	19 days
1998	12 days
1999	15 days
2000	20 days
2001	16 days
2002	17 days
2003	20 days
2004	14 days
2005	15 days
2006	20 days
2007	29 days
2008	13 days
2009	14 days
2010	18 days
2011	16 days
2012	20 days
2013	13 days
2014	21 days
2015	19 days
2016	17 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

76 years, 1939 to 2016

A day with at least 49.2 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 127.9 mm (5.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Chemung: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	49.2 mm (1.9 in)
5 years	64.0 mm (2.5 in)
10 years	75.9 mm (3.0 in)
25 years	93.9 mm (3.7 in)
50 years	109.7 mm (4.3 in)
100 years	127.9 mm (5.0 in)	Longer than the 76 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, 76 years of values from 1939 to 2016.

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: 120.6 mm (4.7 in) in 2011; 112.8 mm (4.4 in) in 2010; 104.1 mm (4.1 in) in 2007.

Download the Data

Data for Chemung standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chemung 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 2026-10-13 (13 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
2009	184	50%	No
2010	359	98%	Yes
2011	357	98%	Yes
2012	365	100%	Yes
2013	362	99%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	345	94%	Yes