Princeton Weather Records (USC00467207)

Record envelope, standing records and threshold days for Princeton (USC00467207), West Virginia, United States, with 127 years of record.

Key Facts for Princeton

Princeton (USC00467207) is a weather station in West Virginia, United States at 37.39 latitude and -81.08 longitude, 726 m (2,381 ft) above sea level.
The station reports from 1900 to 2026, 127 years of record.
1,464 records set at Princeton still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Princeton tied a daily record precipitation of 27.2 mm (1.1 in) on 29 June 2025.

About the Station

Location: West Virginia, United States, 37.39 latitude, -81.08 longitude.
Elevation: 726 m (2,381 ft).
Period of record: 1900 to 2026, 127 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 Princeton. 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 Princeton, 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)	-20.0 C (-4.0 F)	n/a	n/a
Feb	18.3 C (64.9 F)	-22.2 C (-8.0 F)	n/a	n/a
Mar	26.1 C (79.0 F)	-16.7 C (1.9 F)	n/a	n/a
Apr	27.8 C (82.0 F)	-9.4 C (15.1 F)	n/a	n/a
May	30.6 C (87.1 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	31.7 C (89.1 F)	1.1 C (34.0 F)	n/a	n/a
Jul	31.7 C (89.1 F)	6.1 C (43.0 F)	n/a	n/a
Aug	32.2 C (90.0 F)	5.0 C (41.0 F)	n/a	n/a
Sep	32.2 C (90.0 F)	-1.7 C (28.9 F)	n/a	n/a
Oct	27.2 C (81.0 F)	-8.3 C (17.1 F)	n/a	n/a
Nov	22.8 C (73.0 F)	-16.7 C (1.9 F)	n/a	n/a
Dec	18.3 C (64.9 F)	-20.0 C (-4.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Princeton still stand. 1903 holds the most, with 130.

All-Time Record Progression

2 new records

2 all-time records were set at Princeton between 19 December 2009 and 30 July 2018. Each dot is a new record.

When Princeton set new all-time records
Date	Kind	Detail
2009-12-19	Record daily snowfall	Record daily snowfall 43.4 cm (17.1 in)
2018-07-30	Record daily precipitation	Record daily precipitation 146.8 mm (5.8 in)

Wettest Day of Each Month

Jul: 146.8 mm (5.8 in)

The wettest day on record for each calendar month at Princeton. The most was 146.8 mm (5.8 in) on 30 July 2018.

Record daily precipitation for each month at Princeton
Month	Record daily precipitation (mm)	Date
Jan	127.0 mm (5.0 in)	22 January 1906
Feb	76.2 mm (3.0 in)	28 February 1902
Mar	101.6 mm (4.0 in)	26 March 1913
Apr	78.7 mm (3.1 in)	19 April 1901
May	88.9 mm (3.5 in)	21 May 1901
Jun	106.7 mm (4.2 in)	28 June 1995
Jul	146.8 mm (5.8 in)	30 July 2018
Aug	83.3 mm (3.3 in)	16 August 1949
Sep	78.7 mm (3.1 in)	29 September 1945
Oct	75.4 mm (3.0 in)	2 October 1977
Nov	88.9 mm (3.5 in)	25 November 1900
Dec	76.2 mm (3.0 in)	2 December 1905

Period of Record Coverage

1900 to 1972

16 years of record at Princeton, 1900 to 1972. 7 years have data for under 90 percent of days and are left out of rankings: 1900, 1901, 1902, 1905, 1906, 1914, 1972.

Days with data per year at Princeton
Year	Days with data	Share of year	Complete
1900	214	59%	No
1901	249	68%	No
1902	319	87%	No
1903	340	93%	Yes
1904	356	97%	Yes
1905	240	66%	No
1906	176	48%	No
1907	361	99%	Yes
1908	359	98%	Yes
1909	364	100%	Yes
1910	365	100%	Yes
1911	365	100%	Yes
1912	364	99%	Yes
1913	359	98%	Yes
1914	181	50%	No
1972	30	8%	No

Latest Records

Latest records at Princeton
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 June 2025	Princeton, US	daily rain (Tie)	27.2 mm (1.1 in)	tie	79 years	8 of 100 (Routine)
4 May 2025	Princeton, US	daily rain	33.0 mm (1.3 in)	1.8 mm (0.07 in)	6 years	12 of 100 (Routine)
6 January 2025	Princeton, US	daily rain	38.1 mm (1.5 in)	9.7 mm (0.38 in)	16 years	24 of 100 (Routine)
15 November 2024	Princeton, US	daily rain	17.8 mm (0.7 in)	1.8 mm (0.07 in)	77 years	20 of 100 (Routine)
29 February 2024	Princeton, US	daily rain	17.8 mm (0.7 in)	7.9 mm (0.31 in)	32 years	20 of 100 (Routine)
16 January 2024	Princeton, US	daily snowfall	11.9 cm (4.7 in)	1.7 cm (0.7 in)	20 years	19 of 100 (Routine)
28 August 2023	Princeton, US	daily rain	36.8 mm (1.4 in)	2.8 mm (0.11 in)	36 years	23 of 100 (Routine)
16 July 2023	Princeton, US	daily rain	57.4 mm (2.3 in)	20.6 mm (0.8 in)	112 years	57 of 100 (Notable)
14 July 2023	Princeton, US	daily rain	54.1 mm (2.1 in)	10.2 mm (0.4 in)	32 years	27 of 100 (Routine)
29 May 2023	Princeton, US	daily rain	50.8 mm (2.0 in)	23.9 mm (0.9 in)	58 years	49 of 100 (Notable)
29 April 2023	Princeton, US	daily rain	27.9 mm (1.1 in)	3.8 mm (0.15 in)	52 years	29 of 100 (Routine)
17 February 2023	Princeton, US	daily rain	30.5 mm (1.2 in)	7.4 mm (0.29 in)	8 years	21 of 100 (Routine)
12 September 2022	Princeton, US	daily rain	27.4 mm (1.1 in)	2.0 mm (0.08 in)	120 years	41 of 100 (Notable)
31 August 2022	Princeton, US	daily rain	21.8 mm (0.9 in)	4.8 mm (0.19 in)	0 years	14 of 100 (Routine)
25 February 2022	Princeton, US	daily rain	26.7 mm (1.1 in)	4.6 mm (0.18 in)	43 years	27 of 100 (Routine)
31 August 2021	Princeton, US	daily rain	17.0 mm (0.7 in)	1.8 mm (0.07 in)	3 years	11 of 100 (Routine)
26 August 2021	Princeton, US	daily rain	29.5 mm (1.2 in)	4.4 mm (0.17 in)	56 years	29 of 100 (Routine)
2 July 2021	Princeton, US	daily rain	36.8 mm (1.4 in)	1.0 mm (0.04 in)	35 years	20 of 100 (Routine)
8 June 2021	Princeton, US	daily rain	37.6 mm (1.5 in)	6.6 mm (0.26 in)	16 years	20 of 100 (Routine)
19 March 2021	Princeton, US	daily rain	31.0 mm (1.2 in)	5.6 mm (0.22 in)	114 years	45 of 100 (Notable)

Climate Trend

10 complete years, 1902 to 1913

One stripe for each of 10 complete years at Princeton, 1902 to 1913. Blue stripes are years cooler than the station's own mean of 10.1 C (50.1 F); red stripes are warmer. The coolest year was 1912, at 9.0 C (48.2 F), and the warmest was 1902, at 11.2 C (52.2 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Princeton as warming stripes, 1902 to 1913
Year	Annual mean temperature	Difference from the station mean
1902	11.2 C	+1.13 C
1903	11.0 C	+0.95 C
1904	10.6 C	+0.55 C
1907	9.7 C	-0.40 C
1908	9.9 C	-0.22 C
1909	9.4 C	-0.63 C
1910	9.1 C	-0.98 C
1911	10.4 C	+0.31 C
1912	9.0 C	-1.08 C
1913	10.4 C	+0.34 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1900 to 2026

Yearly extremes at Princeton: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	32.2 C (90.0 F)	1900	30.3 C (86.5 F)	16
Coldest night (TNn)	-22.2 C (-8.0 F)	1912	-17.8 C (0.0 F)	15
Wettest day (Rx1day)	146.8 mm (5.8 in)	2018	50.4 mm (2.0 in)	102
Wettest five days (Rx5day)	203.3 mm (8.0 in)	1901	83.9 mm (3.3 in)	102
Longest dry spell (CDD)	42 days	2000	17 days	102

Hottest day (TXx)

The hottest day of the year at Princeton, 1900 to 2026. The record is 32.2 C (90.0 F) in 1900, marked on the chart; the median year is 30.3 C (86.5 F).

Hottest day (TXx) at Princeton by year
Year	Hottest day (TXx)
1900	32.2 C (90.0 F)
1901	30.6 C (87.1 F)
1902	31.7 C (89.1 F)
1903	31.1 C (88.0 F)
1904	30.6 C (87.1 F)
1905	29.4 C (84.9 F)
1906	27.8 C (82.0 F)
1907	31.7 C (89.1 F)
1908	30.0 C (86.0 F)
1909	28.3 C (82.9 F)
1910	27.2 C (81.0 F)
1911	31.1 C (88.0 F)
1912	27.8 C (82.0 F)
1913	28.9 C (84.0 F)
1914	30.6 C (87.1 F)
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	16.7 C (62.1 F)
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	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Princeton, 1900 to 2026. The record is -22.2 C (-8.0 F) in 1912, marked on the chart; the median year is -17.8 C (0.0 F).

Coldest night (TNn) at Princeton by year
Year	Coldest night (TNn)
1900	-10.0 C (14.0 F)
1901	-14.4 C (6.1 F)
1902	-17.2 C (1.0 F)
1903	-15.6 C (3.9 F)
1904	-17.8 C (0.0 F)
1905	-20.0 C (-4.0 F)
1906	-18.3 C (-0.9 F)
1907	-18.9 C (-2.0 F)
1908	-20.0 C (-4.0 F)
1909	-20.0 C (-4.0 F)
1910	-17.8 C (0.0 F)
1911	-14.4 C (6.1 F)
1912	-22.2 C (-8.0 F)
1913	-16.1 C (3.0 F)
1914	-16.7 C (1.9 F)
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	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Princeton, 1900 to 2026. The record is 146.8 mm (5.8 in) in 2018, marked on the chart; the median year is 50.4 mm (2.0 in).

Wettest day (Rx1day) at Princeton by year
Year	Wettest day (Rx1day)
1900	88.9 mm (3.5 in)
1901	101.6 mm (4.0 in)
1902	76.2 mm (3.0 in)
1903	57.2 mm (2.3 in)
1904	76.2 mm (3.0 in)
1905	76.2 mm (3.0 in)
1906	127.0 mm (5.0 in)
1907	63.5 mm (2.5 in)
1908	69.9 mm (2.8 in)
1909	57.2 mm (2.3 in)
1910	36.8 mm (1.4 in)
1911	76.2 mm (3.0 in)
1912	63.5 mm (2.5 in)
1913	101.6 mm (4.0 in)
1914	38.1 mm (1.5 in)
1940	42.9 mm (1.7 in)
1941	36.1 mm (1.4 in)
1942	69.3 mm (2.7 in)
1943	33.3 mm (1.3 in)
1944	56.6 mm (2.2 in)
1945	78.7 mm (3.1 in)
1946	38.4 mm (1.5 in)
1947	61.7 mm (2.4 in)
1948	43.2 mm (1.7 in)
1949	83.3 mm (3.3 in)
1950	39.1 mm (1.5 in)
1951	39.4 mm (1.6 in)
1952	41.1 mm (1.6 in)
1953	58.2 mm (2.3 in)
1954	66.8 mm (2.6 in)
1955	42.7 mm (1.7 in)
1956	45.7 mm (1.8 in)
1957	34.5 mm (1.4 in)
1958	45.2 mm (1.8 in)
1959	50.5 mm (2.0 in)
1960	41.7 mm (1.6 in)
1961	46.7 mm (1.8 in)
1962	50.3 mm (2.0 in)
1963	61.7 mm (2.4 in)
1964	38.4 mm (1.5 in)
1965	45.0 mm (1.8 in)
1966	72.4 mm (2.9 in)
1967	39.4 mm (1.6 in)
1968	29.5 mm (1.2 in)
1969	38.1 mm (1.5 in)
1970	34.0 mm (1.3 in)
1971	48.8 mm (1.9 in)
1972	50.0 mm (2.0 in)
1973	36.6 mm (1.4 in)
1974	50.8 mm (2.0 in)
1975	41.4 mm (1.6 in)
1976	43.9 mm (1.7 in)
1977	75.4 mm (3.0 in)
1978	41.1 mm (1.6 in)
1979	67.3 mm (2.6 in)
1980	48.5 mm (1.9 in)
1981	35.3 mm (1.4 in)
1982	45.7 mm (1.8 in)
1983	73.7 mm (2.9 in)
1984	49.5 mm (1.9 in)
1985	61.0 mm (2.4 in)
1986	71.1 mm (2.8 in)
1987	50.8 mm (2.0 in)
1988	32.5 mm (1.3 in)
1989	42.9 mm (1.7 in)
1990	45.7 mm (1.8 in)
1991	36.6 mm (1.4 in)
1992	77.5 mm (3.1 in)
1993	34.8 mm (1.4 in)
1994	33.0 mm (1.3 in)
1995	106.7 mm (4.2 in)
1996	85.1 mm (3.4 in)
1997	34.8 mm (1.4 in)
1998	50.8 mm (2.0 in)
1999	33.8 mm (1.3 in)
2000	50.8 mm (2.0 in)
2001	117.3 mm (4.6 in)
2002	71.1 mm (2.8 in)
2003	55.1 mm (2.2 in)
2004	67.8 mm (2.7 in)
2005	45.0 mm (1.8 in)
2006	49.5 mm (1.9 in)
2007	53.3 mm (2.1 in)
2008	45.2 mm (1.8 in)
2009	55.9 mm (2.2 in)
2010	72.4 mm (2.9 in)
2011	65.5 mm (2.6 in)
2012	47.8 mm (1.9 in)
2013	61.0 mm (2.4 in)
2014	35.6 mm (1.4 in)
2015	38.1 mm (1.5 in)
2016	47.2 mm (1.9 in)
2017	52.3 mm (2.1 in)
2018	146.8 mm (5.8 in)
2019	37.3 mm (1.5 in)
2020	50.8 mm (2.0 in)
2021	55.9 mm (2.2 in)
2022	56.6 mm (2.2 in)
2023	57.4 mm (2.3 in)
2024	50.8 mm (2.0 in)
2025	38.1 mm (1.5 in)
2026	39.9 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Princeton, 1900 to 2026. The record is 203.3 mm (8.0 in) in 1901, marked on the chart; the median year is 83.9 mm (3.3 in).

Wettest five days (Rx5day) at Princeton by year
Year	Wettest five days (Rx5day)
1900	155.5 mm (6.1 in)
1901	203.3 mm (8.0 in)
1902	133.4 mm (5.3 in)
1903	108.0 mm (4.3 in)
1904	120.7 mm (4.8 in)
1905	104.2 mm (4.1 in)
1906	138.4 mm (5.4 in)
1907	196.9 mm (7.8 in)
1908	127.1 mm (5.0 in)
1909	85.8 mm (3.4 in)
1910	76.4 mm (3.0 in)
1911	123.2 mm (4.9 in)
1912	109.2 mm (4.3 in)
1913	116.8 mm (4.6 in)
1914	76.2 mm (3.0 in)
1940	74.1 mm (2.9 in)
1941	57.6 mm (2.3 in)
1942	90.6 mm (3.6 in)
1943	77.7 mm (3.1 in)
1944	85.8 mm (3.4 in)
1945	82.5 mm (3.2 in)
1946	59.9 mm (2.4 in)
1947	89.1 mm (3.5 in)
1948	161.0 mm (6.3 in)
1949	103.9 mm (4.1 in)
1950	90.2 mm (3.6 in)
1951	52.6 mm (2.1 in)
1952	68.7 mm (2.7 in)
1953	81.1 mm (3.2 in)
1954	84.1 mm (3.3 in)
1955	91.7 mm (3.6 in)
1956	70.6 mm (2.8 in)
1957	112.2 mm (4.4 in)
1958	60.2 mm (2.4 in)
1959	64.7 mm (2.5 in)
1960	78.2 mm (3.1 in)
1961	87.3 mm (3.4 in)
1962	59.2 mm (2.3 in)
1963	62.2 mm (2.4 in)
1964	65.1 mm (2.6 in)
1965	80.3 mm (3.2 in)
1966	83.3 mm (3.3 in)
1967	66.6 mm (2.6 in)
1968	53.8 mm (2.1 in)
1969	61.5 mm (2.4 in)
1970	61.9 mm (2.4 in)
1971	64.0 mm (2.5 in)
1972	101.9 mm (4.0 in)
1973	67.7 mm (2.7 in)
1974	62.5 mm (2.5 in)
1975	93.5 mm (3.7 in)
1976	77.8 mm (3.1 in)
1977	99.4 mm (3.9 in)
1978	65.0 mm (2.6 in)
1979	88.5 mm (3.5 in)
1980	86.3 mm (3.4 in)
1981	53.1 mm (2.1 in)
1982	90.9 mm (3.6 in)
1983	138.7 mm (5.5 in)
1984	96.7 mm (3.8 in)
1985	108.7 mm (4.3 in)
1986	106.9 mm (4.2 in)
1987	97.8 mm (3.9 in)
1988	49.3 mm (1.9 in)
1989	65.0 mm (2.6 in)
1990	87.9 mm (3.5 in)
1991	70.1 mm (2.8 in)
1992	96.9 mm (3.8 in)
1993	48.6 mm (1.9 in)
1994	95.7 mm (3.8 in)
1995	129.6 mm (5.1 in)
1996	95.7 mm (3.8 in)
1997	34.6 mm (1.4 in)
1998	69.6 mm (2.7 in)
1999	50.1 mm (2.0 in)
2000	80.2 mm (3.2 in)
2001	168.4 mm (6.6 in)
2002	68.8 mm (2.7 in)
2003	94.9 mm (3.7 in)
2004	93.6 mm (3.7 in)
2005	59.1 mm (2.3 in)
2006	76.8 mm (3.0 in)
2007	103.6 mm (4.1 in)
2008	62.4 mm (2.5 in)
2009	73.9 mm (2.9 in)
2010	103.9 mm (4.1 in)
2011	109.7 mm (4.3 in)
2012	66.3 mm (2.6 in)
2013	75.1 mm (3.0 in)
2014	83.8 mm (3.3 in)
2015	59.6 mm (2.3 in)
2016	85.9 mm (3.4 in)
2017	80.7 mm (3.2 in)
2018	200.1 mm (7.9 in)
2019	89.9 mm (3.5 in)
2020	83.3 mm (3.3 in)
2021	106.2 mm (4.2 in)
2022	82.0 mm (3.2 in)
2023	113.3 mm (4.5 in)
2024	145.3 mm (5.7 in)
2025	69.5 mm (2.7 in)
2026	73.2 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Princeton, 1900 to 2026. The record is 42 days in 2000, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Princeton by year
Year	Longest dry spell (CDD)
1900	19 days
1901	19 days
1902	15 days
1903	25 days
1904	20 days
1905	20 days
1906	21 days
1907	14 days
1908	19 days
1909	15 days
1910	22 days
1911	24 days
1912	19 days
1913	14 days
1914	23 days
1940	14 days
1941	25 days
1942	19 days
1943	19 days
1944	19 days
1945	21 days
1946	15 days
1947	15 days
1948	10 days
1949	18 days
1950	17 days
1951	29 days
1952	24 days
1953	37 days
1954	16 days
1955	21 days
1956	17 days
1957	16 days
1958	17 days
1959	24 days
1960	18 days
1961	14 days
1962	13 days
1963	29 days
1964	14 days
1965	23 days
1966	21 days
1967	17 days
1968	20 days
1969	14 days
1970	15 days
1971	13 days
1972	14 days
1973	15 days
1974	16 days
1975	15 days
1976	16 days
1977	16 days
1978	19 days
1979	17 days
1980	15 days
1981	15 days
1982	12 days
1983	15 days
1984	13 days
1985	16 days
1986	19 days
1987	15 days
1988	15 days
1989	19 days
1990	14 days
1991	22 days
1992	21 days
1993	17 days
1994	17 days
1995	20 days
1996	11 days
1997	14 days
1998	20 days
1999	22 days
2000	42 days
2001	30 days
2002	17 days
2003	12 days
2004	18 days
2005	25 days
2006	17 days
2007	16 days
2008	12 days
2009	15 days
2010	17 days
2011	16 days
2012	21 days
2013	10 days
2014	12 days
2015	19 days
2016	24 days
2017	24 days
2018	10 days
2019	31 days
2020	11 days
2021	13 days
2022	13 days
2023	12 days
2024	19 days
2025	15 days
2026	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

94 years, 1902 to 2025

A day with at least 50.3 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 134.8 mm (5.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Princeton: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	50.3 mm (2.0 in)
5 years	67.2 mm (2.6 in)
10 years	80.4 mm (3.2 in)
25 years	99.7 mm (3.9 in)
50 years	116.3 mm (4.6 in)
100 years	134.8 mm (5.3 in)	Longer than the 94 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, 94 years of values from 1902 to 2025.

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: 146.8 mm (5.8 in) in 2018; 127.0 mm (5.0 in) in 1906; 117.3 mm (4.6 in) in 2001.

Download the Data

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