Cockaponset Rs Weather Records (USC00061488)

Record envelope, standing records and threshold days for Cockaponset Rs (USC00061488), Connecticut, United States, with 53 years of record.

Key Facts for Cockaponset Rs

Cockaponset Rs (USC00061488) is a weather station in Connecticut, United States at 41.46 latitude and -72.52 longitude, 49 m (160 ft) above sea level.
The station reports from 1948 to 2000, 53 years of record.
1,464 records set at Cockaponset Rs still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Cockaponset Rs set a daily record precipitation of 39.9 mm (1.6 in) on 12 June 2000.

About the Station

Location: Connecticut, United States, 41.46 latitude, -72.52 longitude.
Elevation: 49 m (160 ft).
Period of record: 1948 to 2000, 53 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 Cockaponset Rs. 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 Cockaponset Rs, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	16.7 C (62.1 F)	-27.2 C (-17.0 F)	n/a	n/a
Feb	18.9 C (66.0 F)	-27.2 C (-17.0 F)	n/a	n/a
Mar	26.7 C (80.1 F)	-20.6 C (-5.1 F)	n/a	n/a
Apr	33.9 C (93.0 F)	-8.9 C (16.0 F)	n/a	n/a
May	36.7 C (98.1 F)	-3.9 C (25.0 F)	n/a	n/a
Jun	35.6 C (96.1 F)	1.7 C (35.1 F)	n/a	n/a
Jul	37.2 C (99.0 F)	2.8 C (37.0 F)	n/a	n/a
Aug	34.4 C (93.9 F)	1.1 C (34.0 F)	n/a	n/a
Sep	32.2 C (90.0 F)	-1.7 C (28.9 F)	n/a	n/a
Oct	28.3 C (82.9 F)	-8.9 C (16.0 F)	n/a	n/a
Nov	24.4 C (75.9 F)	-20.0 C (-4.0 F)	n/a	n/a
Dec	17.2 C (63.0 F)	-27.8 C (-18.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Cockaponset Rs still stand. 1989 holds the most, with 150.

Standing records at Cockaponset Rs by the year they were set
Year set	Standing records
1961	3
1972	16
1978	7
1979	16
1980	27
1981	20
1986	58
1987	124
1988	117
1989	150
1990	115
1991	141
1992	15
1993	145
1994	147
1995	119
1996	144
1997	94
1999	6

All-Time Record Progression

1 new records

1 all-time records were set at Cockaponset Rs between 6 June 1982 and 6 June 1982. Each dot is a new record.

Wettest Day of Each Month

Jun: 265.9 mm (10.5 in)

The wettest day on record for each calendar month at Cockaponset Rs. The most was 265.9 mm (10.5 in) on 6 June 1982.

Record daily precipitation for each month at Cockaponset Rs
Month	Record daily precipitation (mm)	Date
Jan	81.3 mm (3.2 in)	21 January 1979
Feb	81.3 mm (3.2 in)	21 February 1981
Mar	91.7 mm (3.6 in)	22 March 1980
Apr	97.0 mm (3.8 in)	11 April 1983
May	81.0 mm (3.2 in)	1 May 1963
Jun	265.9 mm (10.5 in)	6 June 1982
Jul	106.2 mm (4.2 in)	8 July 1984
Aug	125.7 mm (4.9 in)	12 August 1989
Sep	105.9 mm (4.2 in)	13 September 1960
Oct	131.3 mm (5.2 in)	14 October 1990
Nov	102.1 mm (4.0 in)	20 November 1986
Dec	79.2 mm (3.1 in)	2 December 1996

Period of Record Coverage

1961 to 1999

22 years of record at Cockaponset Rs, 1961 to 1999. 15 years have data for under 90 percent of days and are left out of rankings: 1961, 1969, 1970, 1972, 1977, 1978, 1979, 1980 and others.

Days with data per year at Cockaponset Rs
Year	Days with data	Share of year	Complete
1961	2	1%	No
1969	1	0%	No
1970	1	0%	No
1972	31	8%	No
1977	1	0%	No
1978	31	8%	No
1979	31	8%	No
1980	60	16%	No
1981	31	8%	No
1986	178	49%	No
1987	357	98%	Yes
1988	311	85%	No
1989	324	89%	No
1990	334	92%	Yes
1991	344	94%	Yes
1992	32	9%	No
1993	340	93%	Yes
1994	363	99%	Yes
1995	362	99%	Yes
1996	361	99%	Yes
1997	325	89%	No
1999	28	8%	No

Latest Records

Latest records at Cockaponset Rs
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 June 2000	Cockaponset Rs, US	daily rain	39.9 mm (1.6 in)	18.3 mm (0.7 in)	45 years	30 of 100 (Routine)
7 June 2000	Cockaponset Rs, US	daily rain	73.2 mm (2.9 in)	51.9 mm (2.0 in)	30 years	48 of 100 (Notable)
14 May 2000	Cockaponset Rs, US	daily rain	11.9 mm (0.5 in)	0.7 mm (0.03 in)	41 years	17 of 100 (Routine)
22 April 2000	Cockaponset Rs, US	daily rain	73.7 mm (2.9 in)	62.8 mm (2.5 in)	9 years	47 of 100 (Notable)
9 April 2000	Cockaponset Rs, US	daily rain	30.7 mm (1.2 in)	4.5 mm (0.18 in)	26 years	15 of 100 (Routine)
12 March 2000	Cockaponset Rs, US	daily rain	50.0 mm (2.0 in)	5.3 mm (0.21 in)	48 years	22 of 100 (Routine)
5 January 2000	Cockaponset Rs, US	daily rain	39.4 mm (1.6 in)	11.7 mm (0.5 in)	28 years	21 of 100 (Routine)
1 October 1999	Cockaponset Rs, US	daily rain	31.2 mm (1.2 in)	10.4 mm (0.4 in)	20 years	16 of 100 (Routine)
17 September 1999	Cockaponset Rs, US	daily rain	86.9 mm (3.4 in)	60.2 mm (2.4 in)	21 years	51 of 100 (Notable)
11 September 1999	Cockaponset Rs, US	daily rain	47.0 mm (1.9 in)	13.0 mm (0.5 in)	30 years	23 of 100 (Routine)
10 September 1999	Cockaponset Rs, US	daily rain	43.7 mm (1.7 in)	22.4 mm (0.9 in)	12 years	23 of 100 (Routine)
19 May 1999	Cockaponset Rs, US	daily rain	50.8 mm (2.0 in)	19.3 mm (0.8 in)	28 years	29 of 100 (Routine)
15 March 1999	Cockaponset Rs, US	daily snowfall	20.3 cm (8.0 in)	15.2 cm (6.0 in)	26 years	34 of 100 (Routine)
15 March 1999	Cockaponset Rs, US	daily snow depth (Tie)	20.3 cm (8.0 in)	tie	5 years	1 of 100 (Routine)
1 March 1999	Cockaponset Rs, US	daily rain	39.6 mm (1.6 in)	7.6 mm (0.30 in)	32 years	19 of 100 (Routine)
11 December 1997	Cockaponset Rs, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	48 years	41 of 100 (Notable)
11 December 1997	Cockaponset Rs, US	daily snow depth	12.7 cm (5.0 in)	7.6 cm (3.0 in)	39 years	25 of 100 (Routine)
15 November 1997	Cockaponset Rs, US	daily snowfall (Tie)	1.3 cm (0.5 in)	tie	24 years	3 of 100 (Routine)
15 November 1997	Cockaponset Rs, US	daily snow depth (Tie)	2.5 cm (1.0 in)	tie	24 years	3 of 100 (Routine)
10 November 1997	Cockaponset Rs, US	daily rain	15.0 mm (0.6 in)	1.8 mm (0.07 in)	35 years	16 of 100 (Routine)

Extremes by Year

1948 to 2000

Yearly extremes at Cockaponset Rs: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.2 C (99.0 F)	1991	34.2 C (93.5 F)	22
Coldest night (TNn)	-27.8 C (-18.0 F)	1980	-20.0 C (-4.0 F)	22
Wettest day (Rx1day)	265.9 mm (10.5 in)	1982	75.5 mm (3.0 in)	52
Wettest five days (Rx5day)	372.1 mm (14.6 in)	1982	116.3 mm (4.6 in)	52
Longest dry spell (CDD)	28 days	1948	16 days	52

Hottest day (TXx)

The hottest day of the year at Cockaponset Rs, 1948 to 2000. The record is 37.2 C (99.0 F) in 1991, marked on the chart; the median year is 34.2 C (93.5 F).

Hottest day (TXx) at Cockaponset Rs by year
Year	Hottest day (TXx)
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	26.7 C (80.1 F)
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	28.9 C (84.0 F)
1970	20.6 C (69.1 F)
1971	n/a
1972	12.8 C (55.0 F)
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	8.3 C (46.9 F)
1978	34.4 C (93.9 F)
1979	36.7 C (98.1 F)
1980	34.4 C (93.9 F)
1981	34.4 C (93.9 F)
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	33.3 C (91.9 F)
1987	36.1 C (97.0 F)
1988	35.6 C (96.1 F)
1989	34.4 C (93.9 F)
1990	33.9 C (93.0 F)
1991	37.2 C (99.0 F)
1992	21.7 C (71.1 F)
1993	33.9 C (93.0 F)
1994	33.3 C (91.9 F)
1995	36.7 C (98.1 F)
1996	35.0 C (95.0 F)
1997	33.9 C (93.0 F)
1999	35.6 C (96.1 F)
2000	n/a

Coldest night (TNn)

The coldest night of the year at Cockaponset Rs, 1948 to 2000. The record is -27.8 C (-18.0 F) in 1980, marked on the chart; the median year is -20.0 C (-4.0 F).

Coldest night (TNn) at Cockaponset Rs by year
Year	Coldest night (TNn)
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	7.2 C (45.0 F)
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	19.4 C (66.9 F)
1970	9.4 C (48.9 F)
1971	n/a
1972	-20.0 C (-4.0 F)
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	-3.9 C (25.0 F)
1978	2.8 C (37.0 F)
1979	2.2 C (36.0 F)
1980	-27.8 C (-18.0 F)
1981	5.6 C (42.1 F)
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	-14.4 C (6.1 F)
1987	-24.4 C (-11.9 F)
1988	-26.7 C (-16.1 F)
1989	-26.1 C (-15.0 F)
1990	-20.0 C (-4.0 F)
1991	-20.0 C (-4.0 F)
1992	-13.9 C (7.0 F)
1993	-21.7 C (-7.1 F)
1994	-27.2 C (-17.0 F)
1995	-23.9 C (-11.0 F)
1996	-27.2 C (-17.0 F)
1997	-20.6 C (-5.1 F)
1999	6.7 C (44.1 F)
2000	n/a

Wettest day (Rx1day)

The wettest day of the year at Cockaponset Rs, 1948 to 2000. The record is 265.9 mm (10.5 in) in 1982, marked on the chart; the median year is 75.5 mm (3.0 in).

Wettest day (Rx1day) at Cockaponset Rs by year
Year	Wettest day (Rx1day)
1948	57.4 mm (2.3 in)
1949	58.4 mm (2.3 in)
1950	97.3 mm (3.8 in)
1951	61.7 mm (2.4 in)
1952	79.2 mm (3.1 in)
1953	89.9 mm (3.5 in)
1954	67.3 mm (2.6 in)
1955	102.6 mm (4.0 in)
1956	57.2 mm (2.3 in)
1957	93.0 mm (3.7 in)
1958	55.4 mm (2.2 in)
1959	59.2 mm (2.3 in)
1960	105.9 mm (4.2 in)
1961	57.9 mm (2.3 in)
1962	74.2 mm (2.9 in)
1963	81.0 mm (3.2 in)
1964	48.3 mm (1.9 in)
1965	49.8 mm (2.0 in)
1966	69.6 mm (2.7 in)
1967	51.8 mm (2.0 in)
1968	70.4 mm (2.8 in)
1969	61.0 mm (2.4 in)
1970	62.2 mm (2.4 in)
1971	71.1 mm (2.8 in)
1972	104.1 mm (4.1 in)
1973	73.7 mm (2.9 in)
1974	72.6 mm (2.9 in)
1975	63.5 mm (2.5 in)
1976	66.5 mm (2.6 in)
1977	63.2 mm (2.5 in)
1978	77.7 mm (3.1 in)
1979	81.3 mm (3.2 in)
1980	91.7 mm (3.6 in)
1981	81.3 mm (3.2 in)
1982	265.9 mm (10.5 in)
1983	117.3 mm (4.6 in)
1984	106.2 mm (4.2 in)
1985	97.3 mm (3.8 in)
1986	102.1 mm (4.0 in)
1987	76.7 mm (3.0 in)
1988	88.4 mm (3.5 in)
1989	125.7 mm (4.9 in)
1990	131.3 mm (5.2 in)
1991	85.3 mm (3.4 in)
1992	91.4 mm (3.6 in)
1993	72.6 mm (2.9 in)
1994	79.0 mm (3.1 in)
1995	67.3 mm (2.6 in)
1996	107.4 mm (4.2 in)
1997	69.1 mm (2.7 in)
1999	86.9 mm (3.4 in)
2000	73.7 mm (2.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cockaponset Rs, 1948 to 2000. The record is 372.1 mm (14.6 in) in 1982, marked on the chart; the median year is 116.3 mm (4.6 in).

Wettest five days (Rx5day) at Cockaponset Rs by year
Year	Wettest five days (Rx5day)
1948	77.7 mm (3.1 in)
1949	106.4 mm (4.2 in)
1950	108.2 mm (4.3 in)
1951	116.1 mm (4.6 in)
1952	118.4 mm (4.7 in)
1953	134.9 mm (5.3 in)
1954	116.4 mm (4.6 in)
1955	230.6 mm (9.1 in)
1956	77.2 mm (3.0 in)
1957	115.6 mm (4.6 in)
1958	114.9 mm (4.5 in)
1959	89.2 mm (3.5 in)
1960	134.4 mm (5.3 in)
1961	67.3 mm (2.6 in)
1962	84.6 mm (3.3 in)
1963	86.8 mm (3.4 in)
1964	69.1 mm (2.7 in)
1965	57.2 mm (2.3 in)
1966	76.7 mm (3.0 in)
1967	78.5 mm (3.1 in)
1968	99.1 mm (3.9 in)
1969	128.8 mm (5.1 in)
1970	124.5 mm (4.9 in)
1971	155.7 mm (6.1 in)
1972	118.7 mm (4.7 in)
1973	98.1 mm (3.9 in)
1974	73.5 mm (2.9 in)
1975	141.6 mm (5.6 in)
1976	124.7 mm (4.9 in)
1977	96.0 mm (3.8 in)
1978	97.8 mm (3.9 in)
1979	162.6 mm (6.4 in)
1980	156.0 mm (6.1 in)
1981	150.9 mm (5.9 in)
1982	372.1 mm (14.6 in)
1983	131.5 mm (5.2 in)
1984	213.1 mm (8.4 in)
1985	166.6 mm (6.6 in)
1986	116.8 mm (4.6 in)
1987	142.2 mm (5.6 in)
1988	129.0 mm (5.1 in)
1989	193.1 mm (7.6 in)
1990	140.0 mm (5.5 in)
1991	176.7 mm (7.0 in)
1992	122.0 mm (4.8 in)
1993	93.8 mm (3.7 in)
1994	96.6 mm (3.8 in)
1995	80.3 mm (3.2 in)
1996	131.6 mm (5.2 in)
1997	90.6 mm (3.6 in)
1999	113.6 mm (4.5 in)
2000	93.8 mm (3.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cockaponset Rs, 1948 to 2000. The record is 28 days in 1948, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Cockaponset Rs by year
Year	Longest dry spell (CDD)
1948	28 days
1949	20 days
1950	16 days
1951	12 days
1952	18 days
1953	16 days
1954	12 days
1955	24 days
1956	15 days
1957	16 days
1958	15 days
1959	13 days
1960	17 days
1961	22 days
1962	14 days
1963	28 days
1964	18 days
1965	15 days
1966	26 days
1967	16 days
1968	22 days
1969	16 days
1970	13 days
1971	17 days
1972	12 days
1973	19 days
1974	15 days
1975	19 days
1976	17 days
1977	15 days
1978	19 days
1979	16 days
1980	26 days
1981	18 days
1982	23 days
1983	23 days
1984	19 days
1985	19 days
1986	16 days
1987	12 days
1988	14 days
1989	14 days
1990	10 days
1991	13 days
1992	16 days
1993	15 days
1994	11 days
1995	24 days
1996	16 days
1997	11 days
1999	17 days
2000	12 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

45 years, 1949 to 1997

A day with at least 73.6 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 209.9 mm (8.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Cockaponset Rs: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	73.6 mm (2.9 in)
5 years	96.4 mm (3.8 in)
10 years	115.8 mm (4.6 in)
25 years	146.8 mm (5.8 in)
50 years	175.4 mm (6.9 in)	Longer than the 45 years of record
100 years	209.9 mm (8.3 in)	Longer than the 45 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, 45 years of values from 1949 to 1997.

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: 265.9 mm (10.5 in) in 1982; 131.3 mm (5.2 in) in 1990; 125.7 mm (4.9 in) in 1989.

Download the Data

Data for Cockaponset Rs standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cockaponset Rs 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 2026-10-15 (15 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).