Unadilla 2 N Weather Records (USC00308670)

Record envelope, standing records and threshold days for Unadilla 2 N (USC00308670), New York, United States, with 40 years of record.

Key Facts for Unadilla 2 N

Unadilla 2 N (USC00308670) is a weather station in New York, United States at 42.35 latitude and -75.32 longitude, 451 m (1,480 ft) above sea level.
The station reports from 1975 to 2014, 40 years of record.
1,464 records set at Unadilla 2 N still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Unadilla 2 N set a daily record precipitation of 20.8 mm (0.8 in) on 10 December 2014.

About the Station

Location: New York, United States, 42.35 latitude, -75.32 longitude.
Elevation: 451 m (1,480 ft).
Period of record: 1975 to 2014, 40 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 Unadilla 2 N. 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 Unadilla 2 N, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	13.3 C (55.9 F)	-26.7 C (-16.1 F)	n/a	n/a
Feb	16.1 C (61.0 F)	-22.8 C (-9.0 F)	n/a	n/a
Mar	25.6 C (78.1 F)	-21.1 C (-6.0 F)	n/a	n/a
Apr	30.0 C (86.0 F)	-9.4 C (15.1 F)	n/a	n/a
May	32.2 C (90.0 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	33.3 C (91.9 F)	2.2 C (36.0 F)	n/a	n/a
Jul	34.4 C (93.9 F)	3.9 C (39.0 F)	n/a	n/a
Aug	33.3 C (91.9 F)	5.6 C (42.1 F)	n/a	n/a
Sep	33.9 C (93.0 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	27.2 C (81.0 F)	-6.7 C (19.9 F)	n/a	n/a
Nov	21.7 C (71.1 F)	-16.7 C (1.9 F)	n/a	n/a
Dec	16.1 C (61.0 F)	-19.4 C (-2.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Unadilla 2 N still stand. 2012 holds the most, with 421.

All-Time Record Progression

1 new records

1 all-time records were set at Unadilla 2 N between 8 September 2011 and 8 September 2011. Each dot is a new record.

Wettest Day of Each Month

Sep: 138.7 mm (5.5 in)

The wettest day on record for each calendar month at Unadilla 2 N. The most was 138.7 mm (5.5 in) on 8 September 2011.

Record daily precipitation for each month at Unadilla 2 N
Month	Record daily precipitation (mm)	Date
Jan	40.1 mm (1.6 in)	20 January 1996
Feb	44.5 mm (1.8 in)	15 February 2007
Mar	61.0 mm (2.4 in)	27 March 2002
Apr	66.8 mm (2.6 in)	16 April 1983
May	83.8 mm (3.3 in)	17 May 2014
Jun	73.9 mm (2.9 in)	6 June 2002
Jul	131.6 mm (5.2 in)	16 July 1979
Aug	58.9 mm (2.3 in)	30 August 1988
Sep	138.7 mm (5.5 in)	8 September 2011
Oct	114.3 mm (4.5 in)	1 October 2010
Nov	82.0 mm (3.2 in)	9 November 1996
Dec	51.6 mm (2.0 in)	14 December 1983

Period of Record Coverage

2011 to 2014

4 years of record at Unadilla 2 N, 2011 to 2014. 1 years have data for under 90 percent of days and are left out of rankings: 2014.

Latest Records

Latest records at Unadilla 2 N
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 December 2014	Unadilla 2 N, US	daily rain	20.8 mm (0.8 in)	4.3 mm (0.17 in)	5 years	10 of 100 (Routine)
10 December 2014	Unadilla 2 N, US	daily snowfall (Tie)	10.2 cm (4.0 in)	tie	19 years	2 of 100 (Routine)
27 November 2014	Unadilla 2 N, US	daily snowfall	21.3 cm (8.4 in)	8.6 cm (3.4 in)	12 years	25 of 100 (Routine)
27 November 2014	Unadilla 2 N, US	daily snow depth (Tie)	20.3 cm (8.0 in)	tie	36 years	3 of 100 (Routine)
17 November 2014	Unadilla 2 N, US	daily snowfall	6.1 cm (2.4 in)	1.0 cm (0.4 in)	21 years	12 of 100 (Routine)
16 October 2014	Unadilla 2 N, US	daily rain	86.4 mm (3.4 in)	55.9 mm (2.2 in)	9 years	46 of 100 (Notable)
21 August 2014	Unadilla 2 N, US	daily rain	54.4 mm (2.1 in)	37.6 mm (1.5 in)	9 years	41 of 100 (Notable)
26 June 2014	Unadilla 2 N, US	daily rain	53.6 mm (2.1 in)	25.2 mm (1.0 in)	36 years	41 of 100 (Notable)
4 June 2014	Unadilla 2 N, US	daily rain	23.4 mm (0.9 in)	6.6 mm (0.26 in)	1 year	10 of 100 (Routine)
17 May 2014	Unadilla 2 N, US	monthly rain	83.8 mm (3.3 in)	34.3 mm (1.4 in)	34 years	64 of 100 (Major)
31 March 2014	Unadilla 2 N, US	daily snowfall	3.3 cm (1.3 in)	0.8 cm (0.3 in)	29 years	13 of 100 (Routine)
10 February 2014	Unadilla 2 N, US	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	36 years	19 of 100 (Routine)
6 February 2014	Unadilla 2 N, US	daily snowfall (Tie)	10.2 cm (4.0 in)	tie	12 years	1 of 100 (Routine)
5 February 2014	Unadilla 2 N, US	daily rain	18.0 mm (0.7 in)	2.3 mm (0.09 in)	19 years	12 of 100 (Routine)
19 January 2014	Unadilla 2 N, US	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	30 years	17 of 100 (Routine)
30 December 2013	Unadilla 2 N, US	daily rain	22.1 mm (0.9 in)	7.6 mm (0.30 in)	16 years	18 of 100 (Routine)
19 December 2013	Unadilla 2 N, US	daily snow depth	25.4 cm (10.0 in)	2.5 cm (1.0 in)	32 years	14 of 100 (Routine)
18 December 2013	Unadilla 2 N, US	daily snow depth	25.4 cm (10.0 in)	2.5 cm (1.0 in)	32 years	14 of 100 (Routine)
18 December 2013	Unadilla 2 N, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	36 years	3 of 100 (Routine)
17 December 2013	Unadilla 2 N, US	daily snow depth	25.4 cm (10.0 in)	5.1 cm (2.0 in)	32 years	17 of 100 (Routine)

Extremes by Year

1975 to 2014

Yearly extremes at Unadilla 2 N: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.4 C (93.9 F)	2011	34.2 C (93.5 F)	4
Coldest night (TNn)	-26.7 C (-16.1 F)	2011	-25.0 C (-13.0 F)	4
Wettest day (Rx1day)	138.7 mm (5.5 in)	2011	57.3 mm (2.3 in)	40
Wettest five days (Rx5day)	216.2 mm (8.5 in)	1985	89.2 mm (3.5 in)	40
Longest dry spell (CDD)	24 days	1983	13 days	40

Hottest day (TXx)

The hottest day of the year at Unadilla 2 N, 1975 to 2014. The record is 34.4 C (93.9 F) in 2011, marked on the chart; the median year is 34.2 C (93.5 F).

Hottest day (TXx) at Unadilla 2 N by year
Year	Hottest day (TXx)
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	34.4 C (93.9 F)
2012	34.4 C (93.9 F)
2013	33.9 C (93.0 F)
2014	32.8 C (91.0 F)

Coldest night (TNn)

The coldest night of the year at Unadilla 2 N, 1975 to 2014. The record is -26.7 C (-16.1 F) in 2011, marked on the chart; the median year is -25.0 C (-13.0 F).

Coldest night (TNn) at Unadilla 2 N by year
Year	Coldest night (TNn)
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	-26.7 C (-16.1 F)
2012	-23.9 C (-11.0 F)
2013	-22.8 C (-9.0 F)
2014	-26.1 C (-15.0 F)

Wettest day (Rx1day)

The wettest day of the year at Unadilla 2 N, 1975 to 2014. The record is 138.7 mm (5.5 in) in 2011, marked on the chart; the median year is 57.3 mm (2.3 in).

Wettest day (Rx1day) at Unadilla 2 N by year
Year	Wettest day (Rx1day)
1975	58.4 mm (2.3 in)
1976	61.7 mm (2.4 in)
1977	60.7 mm (2.4 in)
1978	50.0 mm (2.0 in)
1979	131.6 mm (5.2 in)
1980	52.6 mm (2.1 in)
1981	34.0 mm (1.3 in)
1982	42.7 mm (1.7 in)
1983	66.8 mm (2.6 in)
1984	49.3 mm (1.9 in)
1985	128.0 mm (5.0 in)
1986	42.2 mm (1.7 in)
1987	69.1 mm (2.7 in)
1988	58.9 mm (2.3 in)
1989	55.9 mm (2.2 in)
1990	55.9 mm (2.2 in)
1991	35.3 mm (1.4 in)
1992	33.8 mm (1.3 in)
1993	38.4 mm (1.5 in)
1994	47.2 mm (1.9 in)
1995	70.4 mm (2.8 in)
1996	82.0 mm (3.2 in)
1997	41.1 mm (1.6 in)
1998	71.1 mm (2.8 in)
1999	108.2 mm (4.3 in)
2000	58.2 mm (2.3 in)
2001	37.1 mm (1.5 in)
2002	73.9 mm (2.9 in)
2003	61.7 mm (2.4 in)
2004	73.7 mm (2.9 in)
2005	45.7 mm (1.8 in)
2006	56.4 mm (2.2 in)
2007	50.0 mm (2.0 in)
2008	43.4 mm (1.7 in)
2009	47.5 mm (1.9 in)
2010	114.3 mm (4.5 in)
2011	138.7 mm (5.5 in)
2012	44.2 mm (1.7 in)
2013	75.9 mm (3.0 in)
2014	86.4 mm (3.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Unadilla 2 N, 1975 to 2014. The record is 216.2 mm (8.5 in) in 1985, marked on the chart; the median year is 89.2 mm (3.5 in).

Wettest five days (Rx5day) at Unadilla 2 N by year
Year	Wettest five days (Rx5day)
1975	93.7 mm (3.7 in)
1976	103.3 mm (4.1 in)
1977	139.4 mm (5.5 in)
1978	69.4 mm (2.7 in)
1979	180.8 mm (7.1 in)
1980	67.6 mm (2.7 in)
1981	48.3 mm (1.9 in)
1982	71.3 mm (2.8 in)
1983	97.8 mm (3.9 in)
1984	79.4 mm (3.1 in)
1985	216.2 mm (8.5 in)
1986	101.6 mm (4.0 in)
1987	69.4 mm (2.7 in)
1988	91.9 mm (3.6 in)
1989	101.3 mm (4.0 in)
1990	66.1 mm (2.6 in)
1991	67.8 mm (2.7 in)
1992	49.5 mm (1.9 in)
1993	46.3 mm (1.8 in)
1994	93.0 mm (3.7 in)
1995	84.6 mm (3.3 in)
1996	91.5 mm (3.6 in)
1997	50.7 mm (2.0 in)
1998	94.5 mm (3.7 in)
1999	143.3 mm (5.6 in)
2000	80.3 mm (3.2 in)
2001	50.3 mm (2.0 in)
2002	89.4 mm (3.5 in)
2003	88.9 mm (3.5 in)
2004	107.0 mm (4.2 in)
2005	86.9 mm (3.4 in)
2006	87.2 mm (3.4 in)
2007	77.2 mm (3.0 in)
2008	94.6 mm (3.7 in)
2009	70.6 mm (2.8 in)
2010	140.7 mm (5.5 in)
2011	203.7 mm (8.0 in)
2012	51.1 mm (2.0 in)
2013	100.8 mm (4.0 in)
2014	96.5 mm (3.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Unadilla 2 N, 1975 to 2014. The record is 24 days in 1983, marked on the chart; the median year is 13 days.

Longest dry spell (CDD) at Unadilla 2 N by year
Year	Longest dry spell (CDD)
1975	13 days
1976	11 days
1977	14 days
1978	13 days
1979	12 days
1980	22 days
1981	13 days
1982	12 days
1983	24 days
1984	15 days
1985	13 days
1986	13 days
1987	18 days
1988	12 days
1989	13 days
1990	9 days
1991	13 days
1992	12 days
1993	11 days
1994	13 days
1995	18 days
1996	11 days
1997	20 days
1998	13 days
1999	18 days
2000	12 days
2001	22 days
2002	14 days
2003	17 days
2004	13 days
2005	13 days
2006	9 days
2007	10 days
2008	14 days
2009	13 days
2010	12 days
2011	11 days
2012	12 days
2013	11 days
2014	11 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

30 years, 1976 to 2013

A day with at least 57.5 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 191.8 mm (7.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Unadilla 2 N: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	57.5 mm (2.3 in)
5 years	82.3 mm (3.2 in)
10 years	102.4 mm (4.0 in)
25 years	133.1 mm (5.2 in)
50 years	160.3 mm (6.3 in)	Longer than the 30 years of record
100 years	191.8 mm (7.6 in)	Longer than the 30 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, 30 years of values from 1976 to 2013.

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: 138.7 mm (5.5 in) in 2011; 131.6 mm (5.2 in) in 1979; 128.0 mm (5.0 in) in 1985.

Download the Data

Data for Unadilla 2 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Unadilla 2 N 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
2011	359	98%	Yes
2012	360	98%	Yes
2013	351	96%	Yes
2014	294	81%	No