Waterloo Weather Records (USC00308987)

Record envelope, standing records and threshold days for Waterloo (USC00308987), New York, United States, with 89 years of record.

Key Facts for Waterloo

Waterloo (USC00308987) is a weather station in New York, United States at 42.90 latitude and -76.86 longitude, 138 m (452 ft) above sea level.
The station reports from 1932 to 2020, 89 years of record.
0 records set at Waterloo still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Waterloo set a daily record snow depth of 12.7 cm (5.0 in) on 3 December 2019.

About the Station

Location: New York, United States, 42.90 latitude, -76.86 longitude.
Elevation: 138 m (452 ft).
Period of record: 1932 to 2020, 89 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 Waterloo. 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 Waterloo, 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 Waterloo still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Waterloo between 16 February 2015 and 15 March 2017. Each dot is a new record.

When Waterloo set new all-time records
Date	Kind	Detail
2015-02-16	Record snow depth	Record snow depth 73.7 cm (29.0 in)
2015-02-19	Record snow depth	Record snow depth 81.3 cm (32.0 in)
2017-03-15	Record daily snowfall	Record daily snowfall 43.2 cm (17.0 in)

Wettest Day of Each Month

Jul: 106.7 mm (4.2 in)

The wettest day on record for each calendar month at Waterloo. The most was 106.7 mm (4.2 in) on 10 July 1952.

Record daily precipitation for each month at Waterloo
Month	Record daily precipitation (mm)	Date
Jan	48.3 mm (1.9 in)	8 January 1998
Feb	73.7 mm (2.9 in)	19 February 1940
Mar	49.3 mm (1.9 in)	9 March 2009
Apr	50.3 mm (2.0 in)	5 April 1941
May	85.3 mm (3.4 in)	29 May 1948
Jun	69.9 mm (2.8 in)	17 June 1998
Jul	106.7 mm (4.2 in)	10 July 1952
Aug	98.0 mm (3.9 in)	1 August 1979
Sep	101.1 mm (4.0 in)	26 September 1975
Oct	79.2 mm (3.1 in)	16 October 1955
Nov	50.8 mm (2.0 in)	1 November 1994
Dec	53.3 mm (2.1 in)	11 December 1952

Latest Records

Latest records at Waterloo
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 December 2019	Waterloo, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	49 years	23 of 100 (Routine)
2 December 2019	Waterloo, US	daily snow depth	17.8 cm (7.0 in)	7.6 cm (3.0 in)	49 years	27 of 100 (Routine)
12 November 2019	Waterloo, US	daily snow depth	5.1 cm (2.0 in)	5.1 cm (2.0 in)	70 years	20 of 100 (Routine)
21 June 2019	Waterloo, US	daily rain (Tie)	30.5 mm (1.2 in)	tie	9 years	2 of 100 (Routine)
3 October 2018	Waterloo, US	daily rain	33.3 mm (1.3 in)	14.0 mm (0.6 in)	1 year	23 of 100 (Routine)
8 August 2018	Waterloo, US	daily rain	36.8 mm (1.4 in)	18.3 mm (0.7 in)	41 years	36 of 100 (Notable)
5 September 2017	Waterloo, US	daily rain	19.6 mm (0.8 in)	2.8 mm (0.11 in)	56 years	20 of 100 (Routine)
13 July 2017	Waterloo, US	daily rain	40.6 mm (1.6 in)	9.6 mm (0.38 in)	55 years	33 of 100 (Routine)
16 June 2017	Waterloo, US	daily rain	24.4 mm (1.0 in)	0.8 mm (0.03 in)	44 years	20 of 100 (Routine)
20 March 2017	Waterloo, US	daily snow depth	27.9 cm (11.0 in)	5.0 cm (2.0 in)	67 years	31 of 100 (Routine)
17 March 2017	Waterloo, US	daily snowfall	27.9 cm (11.0 in)	12.7 cm (5.0 in)	40 years	39 of 100 (Notable)
17 March 2017	Waterloo, US	monthly snow depth	71.1 cm (28.0 in)	10.1 cm (4.0 in)	46 years	38 of 100 (Notable)
15 March 2017	Waterloo, US	all-time snowfall	43.2 cm (17.0 in)	5.1 cm (2.0 in)	70 years	56 of 100 (Notable)
15 March 2017	Waterloo, US	daily snow depth	43.2 cm (17.0 in)	28.0 cm (11.0 in)	46 years	42 of 100 (Notable)
6 March 2017	Waterloo, US	daily snowfall	5.1 cm (2.0 in)	1.3 cm (0.5 in)	20 years	15 of 100 (Routine)
18 January 2017	Waterloo, US	daily rain	19.8 mm (0.8 in)	6.3 mm (0.25 in)	65 years	20 of 100 (Routine)
23 November 2016	Waterloo, US	daily snow depth	30.5 cm (12.0 in)	22.9 cm (9.0 in)	45 years	60 of 100 (Major)
22 November 2016	Waterloo, US	daily snowfall	21.1 cm (8.3 in)	16.0 cm (6.3 in)	48 years	58 of 100 (Notable)
22 November 2016	Waterloo, US	monthly snow depth	40.6 cm (16.0 in)	10.1 cm (4.0 in)	0 years	43 of 100 (Notable)
21 November 2016	Waterloo, US	monthly snow depth	30.5 cm (12.0 in)	10.2 cm (4.0 in)	48 years	57 of 100 (Notable)

Extremes by Year

1932 to 2020

Yearly extremes at Waterloo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	106.7 mm (4.2 in)	1952	45.7 mm (1.8 in)	83
Wettest five days (Rx5day)	183.4 mm (7.2 in)	1955	69.7 mm (2.7 in)	82
Longest dry spell (CDD)	28 days	1947	16 days	83

Wettest day (Rx1day)

The wettest day of the year at Waterloo, 1932 to 2020. The record is 106.7 mm (4.2 in) in 1952, marked on the chart; the median year is 45.7 mm (1.8 in).

Wettest day (Rx1day) at Waterloo by year
Year	Wettest day (Rx1day)
1932	56.6 mm (2.2 in)
1933	52.1 mm (2.1 in)
1934	24.9 mm (1.0 in)
1935	52.3 mm (2.1 in)
1936	37.3 mm (1.5 in)
1937	50.3 mm (2.0 in)
1938	79.2 mm (3.1 in)
1939	25.4 mm (1.0 in)
1940	73.7 mm (2.9 in)
1941	50.3 mm (2.0 in)
1942	43.2 mm (1.7 in)
1943	41.7 mm (1.6 in)
1944	49.3 mm (1.9 in)
1945	59.2 mm (2.3 in)
1946	71.1 mm (2.8 in)
1947	40.6 mm (1.6 in)
1948	85.3 mm (3.4 in)
1949	59.9 mm (2.4 in)
1950	64.5 mm (2.5 in)
1951	41.4 mm (1.6 in)
1952	106.7 mm (4.2 in)
1953	53.8 mm (2.1 in)
1954	35.6 mm (1.4 in)
1955	79.2 mm (3.1 in)
1956	30.5 mm (1.2 in)
1957	33.8 mm (1.3 in)
1958	31.8 mm (1.3 in)
1959	55.9 mm (2.2 in)
1960	53.6 mm (2.1 in)
1961	45.7 mm (1.8 in)
1962	31.2 mm (1.2 in)
1963	44.7 mm (1.8 in)
1964	38.1 mm (1.5 in)
1965	20.8 mm (0.8 in)
1966	48.8 mm (1.9 in)
1967	37.6 mm (1.5 in)
1968	49.0 mm (1.9 in)
1969	37.6 mm (1.5 in)
1970	53.6 mm (2.1 in)
1971	38.4 mm (1.5 in)
1972	48.5 mm (1.9 in)
1973	35.6 mm (1.4 in)
1974	45.7 mm (1.8 in)
1975	101.1 mm (4.0 in)
1976	45.7 mm (1.8 in)
1977	39.9 mm (1.6 in)
1978	30.5 mm (1.2 in)
1979	98.0 mm (3.9 in)
1980	57.2 mm (2.3 in)
1981	34.0 mm (1.3 in)
1982	37.6 mm (1.5 in)
1983	42.9 mm (1.7 in)
1984	36.8 mm (1.4 in)
1985	27.9 mm (1.1 in)
1986	39.6 mm (1.6 in)
1987	55.1 mm (2.2 in)
1988	25.4 mm (1.0 in)
1989	38.9 mm (1.5 in)
1990	36.3 mm (1.4 in)
1991	38.9 mm (1.5 in)
1992	57.2 mm (2.3 in)
1993	37.3 mm (1.5 in)
1994	50.8 mm (2.0 in)
1995	52.3 mm (2.1 in)
1996	75.2 mm (3.0 in)
1997	36.1 mm (1.4 in)
1998	69.9 mm (2.8 in)
1999	59.2 mm (2.3 in)
2000	61.5 mm (2.4 in)
2001	27.7 mm (1.1 in)
2002	25.4 mm (1.0 in)
2009	49.3 mm (1.9 in)
2010	53.3 mm (2.1 in)
2011	66.0 mm (2.6 in)
2012	33.0 mm (1.3 in)
2013	49.5 mm (1.9 in)
2014	66.5 mm (2.6 in)
2015	66.0 mm (2.6 in)
2016	76.5 mm (3.0 in)
2017	40.6 mm (1.6 in)
2018	36.8 mm (1.4 in)
2019	34.3 mm (1.4 in)
2020	35.8 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Waterloo, 1932 to 2020. The record is 183.4 mm (7.2 in) in 1955, marked on the chart; the median year is 69.7 mm (2.7 in).

Wettest five days (Rx5day) at Waterloo by year
Year	Wettest five days (Rx5day)
1932	79.7 mm (3.1 in)
1933	72.1 mm (2.8 in)
1934	39.3 mm (1.5 in)
1935	81.1 mm (3.2 in)
1936	76.6 mm (3.0 in)
1937	101.0 mm (4.0 in)
1938	79.2 mm (3.1 in)
1939	58.5 mm (2.3 in)
1940	73.7 mm (2.9 in)
1941	69.8 mm (2.7 in)
1942	108.7 mm (4.3 in)
1943	108.7 mm (4.3 in)
1944	54.4 mm (2.1 in)
1945	116.8 mm (4.6 in)
1946	92.4 mm (3.6 in)
1947	58.5 mm (2.3 in)
1948	85.3 mm (3.4 in)
1949	69.1 mm (2.7 in)
1950	113.7 mm (4.5 in)
1951	70.7 mm (2.8 in)
1952	108.7 mm (4.3 in)
1953	105.4 mm (4.1 in)
1954	62.5 mm (2.5 in)
1955	183.4 mm (7.2 in)
1956	55.4 mm (2.2 in)
1957	55.6 mm (2.2 in)
1958	54.4 mm (2.1 in)
1959	73.4 mm (2.9 in)
1960	76.0 mm (3.0 in)
1961	70.3 mm (2.8 in)
1962	45.2 mm (1.8 in)
1963	60.4 mm (2.4 in)
1964	53.9 mm (2.1 in)
1965	30.9 mm (1.2 in)
1966	68.3 mm (2.7 in)
1967	47.7 mm (1.9 in)
1968	66.7 mm (2.6 in)
1969	63.2 mm (2.5 in)
1970	66.6 mm (2.6 in)
1971	59.9 mm (2.4 in)
1972	114.3 mm (4.5 in)
1973	60.8 mm (2.4 in)
1974	65.5 mm (2.6 in)
1975	120.7 mm (4.8 in)
1976	70.7 mm (2.8 in)
1977	99.6 mm (3.9 in)
1978	54.9 mm (2.2 in)
1979	111.2 mm (4.4 in)
1980	64.5 mm (2.5 in)
1981	72.3 mm (2.8 in)
1982	60.6 mm (2.4 in)
1983	57.4 mm (2.3 in)
1984	66.8 mm (2.6 in)
1985	49.7 mm (2.0 in)
1986	61.2 mm (2.4 in)
1987	80.8 mm (3.2 in)
1988	65.5 mm (2.6 in)
1989	66.8 mm (2.6 in)
1990	88.9 mm (3.5 in)
1991	50.8 mm (2.0 in)
1992	80.3 mm (3.2 in)
1993	41.1 mm (1.6 in)
1994	93.0 mm (3.7 in)
1995	74.3 mm (2.9 in)
1996	75.2 mm (3.0 in)
1997	50.6 mm (2.0 in)
1998	97.0 mm (3.8 in)
1999	76.0 mm (3.0 in)
2000	121.5 mm (4.8 in)
2001	40.9 mm (1.6 in)
2002	34.8 mm (1.4 in)
2009	60.5 mm (2.4 in)
2010	80.3 mm (3.2 in)
2011	84.3 mm (3.3 in)
2012	44.5 mm (1.8 in)
2013	69.6 mm (2.7 in)
2014	102.1 mm (4.0 in)
2015	93.5 mm (3.7 in)
2016	113.2 mm (4.5 in)
2017	41.4 mm (1.6 in)
2018	22.8 mm (0.9 in)
2019	n/a
2020	37.6 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Waterloo, 1932 to 2020. The record is 28 days in 1947, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Waterloo by year
Year	Longest dry spell (CDD)
1932	15 days
1933	13 days
1934	17 days
1935	17 days
1936	20 days
1937	13 days
1938	13 days
1939	20 days
1940	11 days
1941	17 days
1942	11 days
1943	14 days
1944	18 days
1945	11 days
1946	13 days
1947	28 days
1948	19 days
1949	20 days
1950	18 days
1951	16 days
1952	17 days
1953	25 days
1954	16 days
1955	17 days
1956	15 days
1957	24 days
1958	13 days
1959	16 days
1960	16 days
1961	17 days
1962	19 days
1963	23 days
1964	15 days
1965	14 days
1966	17 days
1967	13 days
1968	12 days
1969	28 days
1970	16 days
1971	19 days
1972	17 days
1973	18 days
1974	12 days
1975	16 days
1976	18 days
1977	17 days
1978	19 days
1979	19 days
1980	18 days
1981	14 days
1982	16 days
1983	16 days
1984	17 days
1985	15 days
1986	12 days
1987	23 days
1988	24 days
1989	13 days
1990	13 days
1991	16 days
1992	11 days
1993	11 days
1994	19 days
1995	15 days
1996	11 days
1997	15 days
1998	18 days
1999	15 days
2000	18 days
2001	6 days
2002	13 days
2009	14 days
2010	12 days
2011	19 days
2012	19 days
2013	11 days
2014	8 days
2015	19 days
2016	13 days
2017	7 days
2018	4 days
2019	4 days
2020	6 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

63 years, 1932 to 2009

A day with at least 46.0 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 107.5 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Waterloo: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	46.0 mm (1.8 in)
5 years	61.1 mm (2.4 in)
10 years	71.6 mm (2.8 in)
25 years	85.5 mm (3.4 in)
50 years	96.3 mm (3.8 in)
100 years	107.5 mm (4.2 in)	Longer than the 63 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, 63 years of values from 1932 to 2009.

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: 106.7 mm (4.2 in) in 1952; 98.0 mm (3.9 in) in 1979; 85.3 mm (3.4 in) in 1948.

Download the Data

Data for Waterloo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Waterloo 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 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