Rahway Weather Records (USC00287393)

Record envelope, standing records and threshold days for Rahway (USC00287393), New Jersey, United States, with 61 years of record.

Key Facts for Rahway

Rahway (USC00287393) is a weather station in New Jersey, United States at 40.60 latitude and -74.26 longitude, 6 m (20 ft) above sea level.
The station reports from 1940 to 2000, 61 years of record.
1,464 records set at Rahway still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Rahway tied a daily record precipitation of 27.9 mm (1.1 in) on 7 June 2000.

About the Station

Location: New Jersey, United States, 40.60 latitude, -74.26 longitude.
Elevation: 6 m (20 ft).
Period of record: 1940 to 2000, 61 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 Rahway. 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 Rahway, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.9 C (66.0 F)	-21.1 C (-6.0 F)	n/a	n/a
Feb	19.4 C (66.9 F)	-21.1 C (-6.0 F)	n/a	n/a
Mar	32.8 C (91.0 F)	-15.6 C (3.9 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-6.7 C (19.9 F)	n/a	n/a
May	37.8 C (100.0 F)	-1.7 C (28.9 F)	n/a	n/a
Jun	40.6 C (105.1 F)	3.3 C (37.9 F)	n/a	n/a
Jul	40.6 C (105.1 F)	7.8 C (46.0 F)	n/a	n/a
Aug	40.0 C (104.0 F)	5.6 C (42.1 F)	n/a	n/a
Sep	37.8 C (100.0 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	33.9 C (93.0 F)	-6.7 C (19.9 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-10.0 C (14.0 F)	n/a	n/a
Dec	24.4 C (75.9 F)	-13.9 C (7.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Rahway still stand. 1987 holds the most, with 146.

Standing records at Rahway by the year they were set
Year set	Standing records
1940	27
1943	11
1944	5
1945	62
1946	85
1947	92
1948	61
1967	2
1969	11
1970	14
1971	3
1972	6
1973	21
1974	10
1976	9
1978	15
1980	14
1986	54
1987	146
1988	142
1989	59
1991	56
1992	66
1993	81
1994	98
1995	87
1996	57
1997	37
1998	50
1999	54
2000	29

All-Time Record Progression

2 new records

2 all-time records were set at Rahway between 27 August 1971 and 17 September 1999. Each dot is a new record.

When Rahway set new all-time records
Date	Kind	Detail
1971-08-27	Record daily precipitation	Record daily precipitation 167.1 mm (6.6 in)
1999-09-17	Record daily precipitation	Record daily precipitation 171.5 mm (6.8 in)

Wettest Day of Each Month

Sep: 171.5 mm (6.8 in)

The wettest day on record for each calendar month at Rahway. The most was 171.5 mm (6.8 in) on 17 September 1999.

Record daily precipitation for each month at Rahway
Month	Record daily precipitation (mm)	Date
Jan	65.3 mm (2.6 in)	24 January 1998
Feb	67.3 mm (2.6 in)	2 February 1973
Mar	62.2 mm (2.4 in)	13 March 1953
Apr	99.8 mm (3.9 in)	29 April 1980
May	82.6 mm (3.3 in)	31 May 1940
Jun	87.6 mm (3.4 in)	2 June 1946
Jul	137.4 mm (5.4 in)	4 July 1996
Aug	167.1 mm (6.6 in)	27 August 1971
Sep	171.5 mm (6.8 in)	17 September 1999
Oct	132.1 mm (5.2 in)	20 October 1996
Nov	146.1 mm (5.8 in)	8 November 1972
Dec	80.3 mm (3.2 in)	13 December 1983

Period of Record Coverage

1940 to 2000

32 years of record at Rahway, 1940 to 2000. 28 years have data for under 90 percent of days and are left out of rankings: 1940, 1941, 1943, 1944, 1945, 1946, 1947, 1948 and others.

Days with data per year at Rahway
Year	Days with data	Share of year	Complete
1940	120	33%	No
1941	30	8%	No
1943	60	16%	No
1944	27	7%	No
1945	148	41%	No
1946	301	82%	No
1947	241	66%	No
1948	180	49%	No
1967	31	8%	No
1969	31	8%	No
1970	31	8%	No
1971	31	8%	No
1972	31	8%	No
1973	60	16%	No
1974	61	17%	No
1976	30	8%	No
1978	89	24%	No
1980	31	8%	No
1986	113	31%	No
1987	329	90%	Yes
1988	336	92%	Yes
1989	255	70%	No
1991	213	58%	No
1992	333	91%	Yes
1993	351	96%	Yes
1994	321	88%	No
1995	288	79%	No
1996	268	73%	No
1997	308	84%	No
1998	267	73%	No
1999	303	83%	No
2000	173	47%	No

Latest Records

Latest records at Rahway
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 June 2000	Rahway, US	daily rain (Tie)	27.9 mm (1.1 in)	tie	36 years	4 of 100 (Routine)
16 May 2000	Rahway, US	daily rain	36.8 mm (1.4 in)	13.2 mm (0.5 in)	29 years	25 of 100 (Routine)
22 April 2000	Rahway, US	daily rain	44.5 mm (1.8 in)	11.5 mm (0.5 in)	9 years	18 of 100 (Routine)
31 January 2000	Rahway, US	daily rain	28.7 mm (1.1 in)	13.0 mm (0.5 in)	50 years	33 of 100 (Routine)
11 January 2000	Rahway, US	daily rain	21.6 mm (0.9 in)	1.3 mm (0.05 in)	16 years	12 of 100 (Routine)
22 December 1999	Rahway, US	daily rain	28.7 mm (1.1 in)	1.8 mm (0.07 in)	29 years	15 of 100 (Routine)
17 September 1999	Rahway, US	all-time rain	171.5 mm (6.8 in)	4.4 mm (0.17 in)	28 years	36 of 100 (Notable)
26 August 1999	Rahway, US	daily rain	101.3 mm (4.0 in)	68.3 mm (2.7 in)	57 years	61 of 100 (Major)
25 May 1999	Rahway, US	daily rain	60.5 mm (2.4 in)	14.8 mm (0.6 in)	46 years	32 of 100 (Routine)
8 September 1998	Rahway, US	daily rain	40.1 mm (1.6 in)	33.7 mm (1.3 in)	48 years	36 of 100 (Notable)
18 August 1998	Rahway, US	daily rain	99.3 mm (3.9 in)	69.3 mm (2.7 in)	43 years	57 of 100 (Notable)
9 March 1998	Rahway, US	daily rain	45.7 mm (1.8 in)	24.1 mm (0.9 in)	56 years	42 of 100 (Notable)
18 February 1998	Rahway, US	daily rain	39.4 mm (1.6 in)	4.9 mm (0.19 in)	42 years	22 of 100 (Routine)
24 January 1998	Rahway, US	monthly rain	65.3 mm (2.6 in)	5.1 mm (0.20 in)	19 years	25 of 100 (Routine)
30 December 1997	Rahway, US	daily rain	40.6 mm (1.6 in)	1.2 mm (0.05 in)	55 years	22 of 100 (Routine)
25 December 1997	Rahway, US	daily rain	23.4 mm (0.9 in)	0.5 mm (0.02 in)	52 years	20 of 100 (Routine)
27 October 1997	Rahway, US	daily rain	26.7 mm (1.1 in)	12.2 mm (0.5 in)	11 years	16 of 100 (Routine)
25 July 1997	Rahway, US	daily rain	133.4 mm (5.3 in)	91.5 mm (3.6 in)	20 years	51 of 100 (Notable)
3 June 1997	Rahway, US	daily rain	33.0 mm (1.3 in)	19.3 mm (0.8 in)	18 years	24 of 100 (Routine)
1 April 1997	Rahway, US	daily rain	43.2 mm (1.7 in)	3.8 mm (0.15 in)	48 years	22 of 100 (Routine)

Extremes by Year

1940 to 2000

Yearly extremes at Rahway: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1947	35.9 C (96.5 F)	32
Coldest night (TNn)	-21.1 C (-6.0 F)	1970	-11.7 C (10.9 F)	32
Wettest day (Rx1day)	171.5 mm (6.8 in)	1999	72.6 mm (2.9 in)	61
Wettest five days (Rx5day)	291.6 mm (11.5 in)	1944	117.9 mm (4.6 in)	61
Longest dry spell (CDD)	40 days	1949	19 days	61

Hottest day (TXx)

The hottest day of the year at Rahway, 1940 to 2000. The record is 40.6 C (105.1 F) in 1947, marked on the chart; the median year is 35.9 C (96.5 F).

Hottest day (TXx) at Rahway by year
Year	Hottest day (TXx)
1940	38.3 C (100.9 F)
1941	11.7 C (53.1 F)
1942	n/a
1943	27.8 C (82.0 F)
1944	33.3 C (91.9 F)
1945	40.0 C (104.0 F)
1946	40.0 C (104.0 F)
1947	40.6 C (105.1 F)
1948	40.6 C (105.1 F)
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	35.6 C (96.1 F)
1968	n/a
1969	26.7 C (80.1 F)
1970	8.9 C (48.0 F)
1971	18.9 C (66.0 F)
1972	26.7 C (80.1 F)
1973	37.8 C (100.0 F)
1974	35.6 C (96.1 F)
1975	n/a
1976	34.4 C (93.9 F)
1977	n/a
1978	32.8 C (91.0 F)
1979	n/a
1980	36.7 C (98.1 F)
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	37.8 C (100.0 F)
1987	37.8 C (100.0 F)
1988	39.4 C (102.9 F)
1989	33.9 C (93.0 F)
1990	n/a
1991	35.6 C (96.1 F)
1992	35.6 C (96.1 F)
1993	36.7 C (98.1 F)
1994	36.7 C (98.1 F)
1995	38.9 C (102.0 F)
1996	34.4 C (93.9 F)
1997	38.3 C (100.9 F)
1998	37.2 C (99.0 F)
1999	36.1 C (97.0 F)
2000	33.9 C (93.0 F)

Coldest night (TNn)

The coldest night of the year at Rahway, 1940 to 2000. The record is -21.1 C (-6.0 F) in 1970, marked on the chart; the median year is -11.7 C (10.9 F).

Coldest night (TNn) at Rahway by year
Year	Coldest night (TNn)
1940	-13.3 C (8.1 F)
1941	-13.3 C (8.1 F)
1942	n/a
1943	-15.6 C (3.9 F)
1944	-2.8 C (27.0 F)
1945	-13.9 C (7.0 F)
1946	-11.7 C (10.9 F)
1947	-12.2 C (10.0 F)
1948	-20.6 C (-5.1 F)
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	10.0 C (50.0 F)
1968	n/a
1969	-6.7 C (19.9 F)
1970	-21.1 C (-6.0 F)
1971	-15.0 C (5.0 F)
1972	-8.9 C (16.0 F)
1973	-4.4 C (24.1 F)
1974	3.3 C (37.9 F)
1975	n/a
1976	8.3 C (46.9 F)
1977	n/a
1978	-3.3 C (26.1 F)
1979	n/a
1980	6.1 C (43.0 F)
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	-11.7 C (10.9 F)
1987	-13.3 C (8.1 F)
1988	-21.1 C (-6.0 F)
1989	-17.8 C (0.0 F)
1990	n/a
1991	-7.2 C (19.0 F)
1992	-11.7 C (10.9 F)
1993	-10.0 C (14.0 F)
1994	-20.0 C (-4.0 F)
1995	-12.2 C (10.0 F)
1996	-12.2 C (10.0 F)
1997	-1.1 C (30.0 F)
1998	-2.2 C (28.0 F)
1999	-6.7 C (19.9 F)
2000	-8.3 C (17.1 F)

Wettest day (Rx1day)

The wettest day of the year at Rahway, 1940 to 2000. The record is 171.5 mm (6.8 in) in 1999, marked on the chart; the median year is 72.6 mm (2.9 in).

Wettest day (Rx1day) at Rahway by year
Year	Wettest day (Rx1day)
1940	82.6 mm (3.3 in)
1941	56.9 mm (2.2 in)
1942	109.2 mm (4.3 in)
1943	106.7 mm (4.2 in)
1944	152.4 mm (6.0 in)
1945	66.0 mm (2.6 in)
1946	112.0 mm (4.4 in)
1947	67.3 mm (2.6 in)
1948	106.7 mm (4.2 in)
1949	33.0 mm (1.3 in)
1950	73.4 mm (2.9 in)
1951	107.7 mm (4.2 in)
1952	70.6 mm (2.8 in)
1953	62.2 mm (2.4 in)
1954	112.8 mm (4.4 in)
1955	146.1 mm (5.8 in)
1956	38.1 mm (1.5 in)
1957	39.1 mm (1.5 in)
1958	57.7 mm (2.3 in)
1959	66.0 mm (2.6 in)
1960	86.4 mm (3.4 in)
1961	66.0 mm (2.6 in)
1962	48.3 mm (1.9 in)
1963	67.3 mm (2.6 in)
1964	73.9 mm (2.9 in)
1965	46.2 mm (1.8 in)
1966	141.7 mm (5.6 in)
1967	64.8 mm (2.6 in)
1968	68.6 mm (2.7 in)
1969	94.0 mm (3.7 in)
1970	57.2 mm (2.3 in)
1971	167.1 mm (6.6 in)
1972	146.1 mm (5.8 in)
1973	69.3 mm (2.7 in)
1974	45.7 mm (1.8 in)
1975	73.2 mm (2.9 in)
1976	56.1 mm (2.2 in)
1977	73.7 mm (2.9 in)
1978	49.5 mm (1.9 in)
1979	65.3 mm (2.6 in)
1980	105.7 mm (4.2 in)
1981	46.5 mm (1.8 in)
1982	56.6 mm (2.2 in)
1983	80.3 mm (3.2 in)
1984	69.3 mm (2.7 in)
1985	76.2 mm (3.0 in)
1986	66.0 mm (2.6 in)
1987	54.6 mm (2.1 in)
1988	114.3 mm (4.5 in)
1989	113.3 mm (4.5 in)
1990	73.7 mm (2.9 in)
1991	78.7 mm (3.1 in)
1992	72.6 mm (2.9 in)
1993	53.8 mm (2.1 in)
1994	64.3 mm (2.5 in)
1995	118.4 mm (4.7 in)
1996	137.4 mm (5.4 in)
1997	133.4 mm (5.3 in)
1998	99.3 mm (3.9 in)
1999	171.5 mm (6.8 in)
2000	44.5 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Rahway, 1940 to 2000. The record is 291.6 mm (11.5 in) in 1944, marked on the chart; the median year is 117.9 mm (4.6 in).

Wettest five days (Rx5day) at Rahway by year
Year	Wettest five days (Rx5day)
1940	91.5 mm (3.6 in)
1941	70.1 mm (2.8 in)
1942	157.5 mm (6.2 in)
1943	139.2 mm (5.5 in)
1944	291.6 mm (11.5 in)
1945	123.4 mm (4.9 in)
1946	165.3 mm (6.5 in)
1947	131.6 mm (5.2 in)
1948	107.5 mm (4.2 in)
1949	75.6 mm (3.0 in)
1950	77.2 mm (3.0 in)
1951	112.5 mm (4.4 in)
1952	133.9 mm (5.3 in)
1953	119.4 mm (4.7 in)
1954	126.8 mm (5.0 in)
1955	231.7 mm (9.1 in)
1956	63.8 mm (2.5 in)
1957	82.3 mm (3.2 in)
1958	150.4 mm (5.9 in)
1959	132.1 mm (5.2 in)
1960	152.4 mm (6.0 in)
1961	107.7 mm (4.2 in)
1962	71.2 mm (2.8 in)
1963	105.7 mm (4.2 in)
1964	96.0 mm (3.8 in)
1965	47.0 mm (1.9 in)
1966	151.1 mm (5.9 in)
1967	99.8 mm (3.9 in)
1968	86.7 mm (3.4 in)
1969	161.8 mm (6.4 in)
1970	132.1 mm (5.2 in)
1971	210.0 mm (8.3 in)
1972	155.0 mm (6.1 in)
1973	101.3 mm (4.0 in)
1974	60.2 mm (2.4 in)
1975	243.0 mm (9.6 in)
1976	88.9 mm (3.5 in)
1977	117.9 mm (4.6 in)
1978	68.1 mm (2.7 in)
1979	120.4 mm (4.7 in)
1980	133.4 mm (5.3 in)
1981	79.1 mm (3.1 in)
1982	90.1 mm (3.5 in)
1983	131.8 mm (5.2 in)
1984	151.6 mm (6.0 in)
1985	109.2 mm (4.3 in)
1986	110.2 mm (4.3 in)
1987	63.5 mm (2.5 in)
1988	217.2 mm (8.6 in)
1989	228.2 mm (9.0 in)
1990	111.6 mm (4.4 in)
1991	123.6 mm (4.9 in)
1992	90.2 mm (3.6 in)
1993	63.5 mm (2.5 in)
1994	81.5 mm (3.2 in)
1995	126.5 mm (5.0 in)
1996	182.3 mm (7.2 in)
1997	156.8 mm (6.2 in)
1998	107.4 mm (4.2 in)
1999	203.3 mm (8.0 in)
2000	60.8 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Rahway, 1940 to 2000. The record is 40 days in 1949, marked on the chart; the median year is 19 days.

Longest dry spell (CDD) at Rahway by year
Year	Longest dry spell (CDD)
1940	20 days
1941	36 days
1942	27 days
1943	19 days
1944	19 days
1945	13 days
1946	17 days
1947	22 days
1948	17 days
1949	40 days
1950	15 days
1951	12 days
1952	17 days
1953	19 days
1954	13 days
1955	32 days
1956	12 days
1957	13 days
1958	19 days
1959	28 days
1960	18 days
1961	14 days
1962	23 days
1963	27 days
1964	36 days
1965	19 days
1966	21 days
1967	19 days
1968	26 days
1969	14 days
1970	16 days
1971	18 days
1972	20 days
1973	17 days
1974	17 days
1975	11 days
1976	23 days
1977	18 days
1978	19 days
1979	12 days
1980	31 days
1981	24 days
1982	17 days
1983	16 days
1984	14 days
1985	21 days
1986	19 days
1987	20 days
1988	22 days
1989	11 days
1990	11 days
1991	23 days
1992	18 days
1993	15 days
1994	11 days
1995	25 days
1996	9 days
1997	16 days
1998	20 days
1999	26 days
2000	19 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

55 years, 1940 to 1999

A day with at least 74.4 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 209.2 mm (8.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Rahway: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	74.4 mm (2.9 in)
5 years	104.3 mm (4.1 in)
10 years	126.4 mm (5.0 in)
25 years	157.1 mm (6.2 in)
50 years	182.2 mm (7.2 in)
100 years	209.2 mm (8.2 in)	Longer than the 55 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, 55 years of values from 1940 to 1999.

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: 171.5 mm (6.8 in) in 1999; 167.1 mm (6.6 in) in 1971; 152.4 mm (6.0 in) in 1944.

Download the Data

Data for Rahway standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rahway 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 2026-10-17 (17 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).