Trenton 1 NNE Weather Records (USC00388714)

Record envelope, standing records and threshold days for Trenton 1 NNE (USC00388714), South Carolina, United States, with 65 years of record.

Key Facts for Trenton 1 NNE

Trenton 1 NNE (USC00388714) is a weather station in South Carolina, United States at 33.75 latitude and -81.83 longitude, 189 m (620 ft) above sea level.
The station reports from 1893 to 1957, 65 years of record.
1,464 records set at Trenton 1 NNE still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Trenton 1 NNE set a daily record low minimum temperature of 14.4 C (57.9 F) on 28 July 1957.

About the Station

Location: South Carolina, United States, 33.75 latitude, -81.83 longitude.
Elevation: 189 m (620 ft).
Period of record: 1893 to 1957, 65 years.
Eligible elements: tmax, tmin, prcp, snow.

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 Trenton 1 NNE. 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 Trenton 1 NNE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	27.8 C (82.0 F)	-13.9 C (7.0 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-20.0 C (-4.0 F)	n/a	n/a
Mar	32.8 C (91.0 F)	-9.4 C (15.1 F)	n/a	n/a
Apr	36.1 C (97.0 F)	-1.7 C (28.9 F)	n/a	n/a
May	38.3 C (100.9 F)	3.3 C (37.9 F)	n/a	n/a
Jun	41.1 C (106.0 F)	7.2 C (45.0 F)	n/a	n/a
Jul	41.7 C (107.1 F)	13.3 C (55.9 F)	n/a	n/a
Aug	42.8 C (109.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	42.8 C (109.0 F)	4.4 C (39.9 F)	n/a	n/a
Oct	36.7 C (98.1 F)	-3.3 C (26.1 F)	n/a	n/a
Nov	31.1 C (88.0 F)	-12.2 C (10.0 F)	n/a	n/a
Dec	26.1 C (79.0 F)	-13.3 C (8.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Trenton 1 NNE still stand. 1925 holds the most, with 56.

Standing records at Trenton 1 NNE by the year they were set
Year set	Standing records
1893	2
1894	41
1895	29
1896	47
1897	27
1898	40
1899	36
1900	32
1901	24
1902	18
1903	17
1904	16
1905	20
1906	26
1907	16
1908	20
1909	28
1910	40
1911	18
1912	22
1913	16
1914	30
1915	20
1916	17
1917	22
1918	21
1919	12
1920	21
1921	18
1922	21
1923	14
1924	22
1925	56
1926	8
1927	41
1928	18
1929	25
1930	49
1931	38
1932	35
1933	14
1934	21
1935	1
1936	32
1937	27
1938	22
1939	12
1940	33
1941	11
1942	13
1943	34
1944	19
1945	23
1946	12
1947	17
1948	12
1949	10
1950	34
1951	7
1952	16
1953	5
1954	16
1955	18
1956	20
1957	12

All-Time Record Progression

6 new records

6 all-time records were set at Trenton 1 NNE between 13 August 1925 and 28 June 1936. Each dot is a new record.

When Trenton 1 NNE set new all-time records
Date	Kind	Detail
1925-08-13	Record high maximum temperature	Record high maximum temperature 42.8 C (109.0 F)
1936-06-02	Record high minimum temperature	Record high minimum temperature 30.6 C (87.1 F)
1936-06-17	Record high minimum temperature	Record high minimum temperature 31.1 C (88.0 F)
1936-06-18	Record high minimum temperature	Record high minimum temperature 31.7 C (89.1 F)
1936-06-27	Record high minimum temperature	Record high minimum temperature 32.2 C (90.0 F)
1936-06-28	Record high minimum temperature	Record high minimum temperature 33.3 C (91.9 F)

Wettest Day of Each Month

Aug: 151.1 mm (5.9 in)

The wettest day on record for each calendar month at Trenton 1 NNE. The most was 151.1 mm (5.9 in) on 28 August 1893.

Record daily precipitation for each month at Trenton 1 NNE
Month	Record daily precipitation (mm)	Date
Jan	63.2 mm (2.5 in)	11 January 1925
Feb	73.7 mm (2.9 in)	27 February 1899
Mar	108.0 mm (4.3 in)	4 March 1929
Apr	88.9 mm (3.5 in)	5 April 1924
May	91.7 mm (3.6 in)	13 May 1918
Jun	82.6 mm (3.3 in)	8 June 1949
Jul	113.0 mm (4.4 in)	7 July 1896
Aug	151.1 mm (5.9 in)	28 August 1893
Sep	125.0 mm (4.9 in)	27 September 1929
Oct	143.8 mm (5.7 in)	2 October 1929
Nov	105.4 mm (4.1 in)	7 November 1912
Dec	73.7 mm (2.9 in)	24 December 1924

Period of Record Coverage

1893 to 1957

65 years of record at Trenton 1 NNE, 1893 to 1957. 17 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1914, 1915, 1917, 1918, 1923, 1926 and others.

Days with data per year at Trenton 1 NNE
Year	Days with data	Share of year	Complete
1893	17	5%	No
1894	327	90%	No
1895	361	99%	Yes
1896	353	96%	Yes
1897	349	96%	Yes
1898	330	90%	Yes
1899	359	98%	Yes
1900	355	97%	Yes
1901	359	98%	Yes
1902	356	98%	Yes
1903	362	99%	Yes
1904	348	95%	Yes
1905	360	99%	Yes
1906	360	99%	Yes
1907	353	97%	Yes
1908	366	100%	Yes
1909	363	99%	Yes
1910	365	100%	Yes
1911	361	99%	Yes
1912	366	100%	Yes
1913	354	97%	Yes
1914	292	80%	No
1915	292	80%	No
1916	355	97%	Yes
1917	296	81%	No
1918	224	61%	No
1919	336	92%	Yes
1920	351	96%	Yes
1921	358	98%	Yes
1922	344	94%	Yes
1923	323	88%	No
1924	359	98%	Yes
1925	358	98%	Yes
1926	175	48%	No
1927	357	98%	Yes
1928	355	97%	Yes
1929	354	97%	Yes
1930	360	99%	Yes
1931	362	99%	Yes
1932	364	99%	Yes
1933	347	95%	Yes
1934	303	83%	No
1935	59	16%	No
1936	5	1%	No
1937	249	68%	No
1938	365	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	362	99%	Yes
1944	364	99%	Yes
1945	364	100%	Yes
1946	364	100%	Yes
1947	364	100%	Yes
1948	203	55%	No
1949	282	77%	No
1950	352	96%	Yes
1951	353	97%	Yes
1952	299	82%	No
1953	238	65%	No
1954	363	99%	Yes
1955	361	99%	Yes
1956	365	100%	Yes
1957	211	58%	No

Latest Records

Latest records at Trenton 1 NNE
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 July 1957	Trenton 1 NNE, US	daily low min	14.4 C (57.9 F)	0.6 C (1.1 F)	36 years	19 of 100 (Routine)
27 July 1957	Trenton 1 NNE, US	daily low min	15.0 C (59.0 F)	1.1 C (2.0 F)	36 years	22 of 100 (Routine)
27 July 1957	Trenton 1 NNE, US	daily low max (Tie)	24.4 C (75.9 F)	tie	48 years	5 of 100 (Routine)
26 July 1957	Trenton 1 NNE, US	daily low min	15.0 C (59.0 F)	0.6 C (1.1 F)	46 years	21 of 100 (Routine)
25 July 1957	Trenton 1 NNE, US	daily low min	15.0 C (59.0 F)	1.7 C (3.1 F)	55 years	29 of 100 (Routine)
24 July 1957	Trenton 1 NNE, US	daily low min (Tie)	16.7 C (62.1 F)	tie	55 years	5 of 100 (Routine)
4 July 1957	Trenton 1 NNE, US	daily low min (Tie)	16.7 C (62.1 F)	tie	14 years	2 of 100 (Routine)
1 July 1957	Trenton 1 NNE, US	daily rain	53.3 mm (2.1 in)	14.2 mm (0.6 in)	51 years	30 of 100 (Routine)
25 June 1957	Trenton 1 NNE, US	daily low max	22.8 C (73.0 F)	1.1 C (2.0 F)	47 years	23 of 100 (Routine)
11 May 1957	Trenton 1 NNE, US	daily rain	49.5 mm (1.9 in)	24.6 mm (1.0 in)	4 years	26 of 100 (Routine)
6 May 1957	Trenton 1 NNE, US	daily low min	6.1 C (43.0 F)	1.1 C (2.0 F)	40 years	21 of 100 (Routine)
5 May 1957	Trenton 1 NNE, US	monthly low min	3.3 C (37.9 F)	1.1 C (2.0 F)	50 years	34 of 100 (Routine)
5 May 1957	Trenton 1 NNE, US	daily low max (Tie)	18.9 C (66.0 F)	tie	12 years	2 of 100 (Routine)
4 May 1957	Trenton 1 NNE, US	daily rain	68.3 mm (2.7 in)	35.8 mm (1.4 in)	35 years	45 of 100 (Notable)
4 May 1957	Trenton 1 NNE, US	daily low max	15.6 C (60.1 F)	1.6 C (2.9 F)	12 years	13 of 100 (Routine)
4 May 1957	Trenton 1 NNE, US	monthly low min (Tie)	4.4 C (39.9 F)	tie	50 years	7 of 100 (Routine)
9 April 1957	Trenton 1 NNE, US	daily low min (Tie)	0.6 C (33.1 F)	tie	55 years	5 of 100 (Routine)
25 March 1957	Trenton 1 NNE, US	daily rain	32.3 mm (1.3 in)	4.9 mm (0.19 in)	62 years	27 of 100 (Routine)
11 February 1957	Trenton 1 NNE, US	daily high min (Tie)	13.9 C (57.0 F)	tie	25 years	3 of 100 (Routine)
9 February 1957	Trenton 1 NNE, US	daily high max	25.0 C (77.0 F)	2.2 C (4.0 F)	22 years	15 of 100 (Routine)

Climate Trend

42 complete years, 1895 to 1956

One stripe for each of 42 complete years at Trenton 1 NNE, 1895 to 1956. Blue stripes are years cooler than the station's own mean of 17.6 C (63.7 F); red stripes are warmer. The coolest year was 1910, at 16.6 C (61.9 F), and the warmest was 1927, at 19.0 C (66.2 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Trenton 1 NNE as warming stripes, 1895 to 1956
Year	Annual mean temperature	Difference from the station mean
1895	17.3 C	-0.34 C
1896	18.8 C	+1.19 C
1897	18.5 C	+0.85 C
1899	18.2 C	+0.56 C
1900	18.4 C	+0.76 C
1901	17.3 C	-0.28 C
1902	17.2 C	-0.37 C
1903	17.0 C	-0.56 C
1904	16.7 C	-0.88 C
1905	17.0 C	-0.57 C
1906	17.1 C	-0.53 C
1907	17.2 C	-0.42 C
1908	17.2 C	-0.44 C
1909	16.7 C	-0.91 C
1910	16.6 C	-0.98 C
1911	18.5 C	+0.88 C
1912	17.1 C	-0.51 C
1913	17.8 C	+0.22 C
1916	17.7 C	+0.05 C
1920	16.7 C	-0.93 C
1921	18.5 C	+0.90 C
1924	17.1 C	-0.49 C
1925	18.8 C	+1.17 C
1927	19.0 C	+1.39 C
1928	17.4 C	-0.17 C
1929	17.6 C	-0.01 C
1930	17.7 C	+0.10 C
1931	18.2 C	+0.62 C
1932	18.5 C	+0.89 C
1938	18.3 C	+0.72 C
1940	17.0 C	-0.63 C
1941	17.9 C	+0.26 C
1942	17.4 C	-0.17 C
1943	17.6 C	-0.04 C
1944	17.5 C	-0.11 C
1945	17.8 C	+0.16 C
1946	18.1 C	+0.49 C
1947	16.8 C	-0.80 C
1951	17.2 C	-0.43 C
1954	17.9 C	+0.34 C
1955	17.3 C	-0.27 C
1956	17.1 C	-0.55 C

The fitted trend in annual mean temperature here over 1895 to 1956 is 0.00 C (-0.11 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.01 F (-0.19 to 0.20) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Trenton 1 NNE
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.00 C (-0.11 to 0.11) per decade	0.01 F (-0.19 to 0.20) per decade	1895 to 1956	42	Not clearly different from zero
Mean daily maximum	0.3 C (0.1 to 0.4) per decade	0.5 F (0.2 to 0.7) per decade	1895 to 1956	42	Rise
Mean daily minimum	-0.3 C (-0.4 to -0.1) per decade	-0.5 F (-0.7 to -0.2) per decade	1895 to 1956	42	Fall

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

1893 to 1957

Yearly extremes at Trenton 1 NNE: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1925	37.8 C (100.0 F)	65
Coldest night (TNn)	-20.0 C (-4.0 F)	1899	-8.9 C (16.0 F)	65
Wettest day (Rx1day)	151.1 mm (5.9 in)	1893	67.1 mm (2.6 in)	65
Wettest five days (Rx5day)	229.5 mm (9.0 in)	1906	108.5 mm (4.3 in)	65
Longest dry spell (CDD)	51 days	1934	23 days	65

Hottest day (TXx)

The hottest day of the year at Trenton 1 NNE, 1893 to 1957. The record is 42.8 C (109.0 F) in 1925, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Trenton 1 NNE by year
Year	Hottest day (TXx)
1893	32.2 C (90.0 F)
1894	36.7 C (98.1 F)
1895	37.2 C (99.0 F)
1896	36.7 C (98.1 F)
1897	37.2 C (99.0 F)
1898	36.7 C (98.1 F)
1899	37.2 C (99.0 F)
1900	37.8 C (100.0 F)
1901	35.6 C (96.1 F)
1902	40.0 C (104.0 F)
1903	38.3 C (100.9 F)
1904	38.9 C (102.0 F)
1905	37.8 C (100.0 F)
1906	36.7 C (98.1 F)
1907	39.4 C (102.9 F)
1908	36.7 C (98.1 F)
1909	39.4 C (102.9 F)
1910	36.1 C (97.0 F)
1911	40.0 C (104.0 F)
1912	40.0 C (104.0 F)
1913	38.9 C (102.0 F)
1914	41.1 C (106.0 F)
1915	40.0 C (104.0 F)
1916	37.8 C (100.0 F)
1917	37.8 C (100.0 F)
1918	37.8 C (100.0 F)
1919	35.6 C (96.1 F)
1920	37.2 C (99.0 F)
1921	38.9 C (102.0 F)
1922	35.6 C (96.1 F)
1923	36.7 C (98.1 F)
1924	38.9 C (102.0 F)
1925	42.8 C (109.0 F)
1926	31.1 C (88.0 F)
1927	40.6 C (105.1 F)
1928	35.6 C (96.1 F)
1929	36.1 C (97.0 F)
1930	41.7 C (107.1 F)
1931	40.0 C (104.0 F)
1932	39.4 C (102.9 F)
1933	39.4 C (102.9 F)
1934	41.1 C (106.0 F)
1935	24.4 C (75.9 F)
1936	40.0 C (104.0 F)
1937	38.9 C (102.0 F)
1938	38.9 C (102.0 F)
1939	39.4 C (102.9 F)
1940	37.8 C (100.0 F)
1941	37.8 C (100.0 F)
1942	38.3 C (100.9 F)
1943	37.8 C (100.0 F)
1944	39.4 C (102.9 F)
1945	37.8 C (100.0 F)
1946	35.6 C (96.1 F)
1947	36.7 C (98.1 F)
1948	38.9 C (102.0 F)
1949	37.8 C (100.0 F)
1950	37.8 C (100.0 F)
1951	37.8 C (100.0 F)
1952	38.3 C (100.9 F)
1953	34.4 C (93.9 F)
1954	37.8 C (100.0 F)
1955	35.0 C (95.0 F)
1956	37.2 C (99.0 F)
1957	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Trenton 1 NNE, 1893 to 1957. The record is -20.0 C (-4.0 F) in 1899, marked on the chart; the median year is -8.9 C (16.0 F).

Coldest night (TNn) at Trenton 1 NNE by year
Year	Coldest night (TNn)
1893	7.8 C (46.0 F)
1894	-13.3 C (8.1 F)
1895	-15.0 C (5.0 F)
1896	-10.0 C (14.0 F)
1897	-11.1 C (12.0 F)
1898	-7.2 C (19.0 F)
1899	-20.0 C (-4.0 F)
1900	-11.1 C (12.0 F)
1901	-10.0 C (14.0 F)
1902	-8.9 C (16.0 F)
1903	-7.8 C (18.0 F)
1904	-8.3 C (17.1 F)
1905	-12.2 C (10.0 F)
1906	-8.9 C (16.0 F)
1907	-5.6 C (21.9 F)
1908	-7.8 C (18.0 F)
1909	-12.8 C (9.0 F)
1910	-7.8 C (18.0 F)
1911	-7.2 C (19.0 F)
1912	-11.7 C (10.9 F)
1913	-4.4 C (24.1 F)
1914	-7.2 C (19.0 F)
1915	-4.4 C (24.1 F)
1916	-7.2 C (19.0 F)
1917	-14.4 C (6.1 F)
1918	-4.4 C (24.1 F)
1919	-10.0 C (14.0 F)
1920	-10.6 C (12.9 F)
1921	-4.4 C (24.1 F)
1922	-6.7 C (19.9 F)
1923	-7.2 C (19.0 F)
1924	-12.2 C (10.0 F)
1925	-11.7 C (10.9 F)
1926	-6.7 C (19.9 F)
1927	-11.7 C (10.9 F)
1928	-13.9 C (7.0 F)
1929	-8.3 C (17.1 F)
1930	-5.6 C (21.9 F)
1931	-7.2 C (19.0 F)
1932	-8.3 C (17.1 F)
1933	-10.0 C (14.0 F)
1934	-12.2 C (10.0 F)
1935	-9.4 C (15.1 F)
1936	11.7 C (53.1 F)
1937	-10.6 C (12.9 F)
1938	-11.1 C (12.0 F)
1939	-6.7 C (19.9 F)
1940	-13.3 C (8.1 F)
1941	-5.6 C (21.9 F)
1942	-7.8 C (18.0 F)
1943	-11.1 C (12.0 F)
1944	-7.2 C (19.0 F)
1945	-8.9 C (16.0 F)
1946	-6.7 C (19.9 F)
1947	-10.0 C (14.0 F)
1948	-11.1 C (12.0 F)
1949	-3.9 C (25.0 F)
1950	-12.2 C (10.0 F)
1951	-8.9 C (16.0 F)
1952	-6.1 C (21.0 F)
1953	-8.3 C (17.1 F)
1954	-5.6 C (21.9 F)
1955	-9.4 C (15.1 F)
1956	-7.2 C (19.0 F)
1957	-10.0 C (14.0 F)

Wettest day (Rx1day)

The wettest day of the year at Trenton 1 NNE, 1893 to 1957. The record is 151.1 mm (5.9 in) in 1893, marked on the chart; the median year is 67.1 mm (2.6 in).

Wettest day (Rx1day) at Trenton 1 NNE by year
Year	Wettest day (Rx1day)
1893	151.1 mm (5.9 in)
1894	141.0 mm (5.6 in)
1895	46.0 mm (1.8 in)
1896	113.0 mm (4.4 in)
1897	73.9 mm (2.9 in)
1898	114.3 mm (4.5 in)
1899	73.7 mm (2.9 in)
1900	59.4 mm (2.3 in)
1901	120.7 mm (4.8 in)
1902	69.1 mm (2.7 in)
1903	67.1 mm (2.6 in)
1904	59.7 mm (2.4 in)
1905	71.6 mm (2.8 in)
1906	94.2 mm (3.7 in)
1907	46.2 mm (1.8 in)
1908	59.2 mm (2.3 in)
1909	71.9 mm (2.8 in)
1910	74.7 mm (2.9 in)
1911	58.9 mm (2.3 in)
1912	105.4 mm (4.1 in)
1913	66.5 mm (2.6 in)
1914	44.5 mm (1.8 in)
1915	84.8 mm (3.3 in)
1916	65.0 mm (2.6 in)
1917	68.1 mm (2.7 in)
1918	91.7 mm (3.6 in)
1919	77.5 mm (3.1 in)
1920	61.7 mm (2.4 in)
1921	66.0 mm (2.6 in)
1922	71.1 mm (2.8 in)
1923	61.0 mm (2.4 in)
1924	88.9 mm (3.5 in)
1925	63.2 mm (2.5 in)
1926	55.1 mm (2.2 in)
1927	71.1 mm (2.8 in)
1928	113.0 mm (4.4 in)
1929	143.8 mm (5.7 in)
1930	48.8 mm (1.9 in)
1931	33.0 mm (1.3 in)
1932	101.6 mm (4.0 in)
1933	55.9 mm (2.2 in)
1934	50.8 mm (2.0 in)
1935	29.2 mm (1.1 in)
1936	50.8 mm (2.0 in)
1937	65.5 mm (2.6 in)
1938	78.0 mm (3.1 in)
1939	73.7 mm (2.9 in)
1940	67.3 mm (2.6 in)
1941	69.9 mm (2.8 in)
1942	60.2 mm (2.4 in)
1943	60.5 mm (2.4 in)
1944	62.7 mm (2.5 in)
1945	55.9 mm (2.2 in)
1946	92.7 mm (3.6 in)
1947	61.5 mm (2.4 in)
1948	66.0 mm (2.6 in)
1949	88.9 mm (3.5 in)
1950	71.6 mm (2.8 in)
1951	50.8 mm (2.0 in)
1952	50.8 mm (2.0 in)
1953	52.1 mm (2.1 in)
1954	61.0 mm (2.4 in)
1955	71.9 mm (2.8 in)
1956	52.6 mm (2.1 in)
1957	68.3 mm (2.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Trenton 1 NNE, 1893 to 1957. The record is 229.5 mm (9.0 in) in 1906, marked on the chart; the median year is 108.5 mm (4.3 in).

Wettest five days (Rx5day) at Trenton 1 NNE by year
Year	Wettest five days (Rx5day)
1893	109.9 mm (4.3 in)
1894	150.1 mm (5.9 in)
1895	111.3 mm (4.4 in)
1896	162.9 mm (6.4 in)
1897	161.1 mm (6.3 in)
1898	142.3 mm (5.6 in)
1899	138.6 mm (5.5 in)
1900	149.5 mm (5.9 in)
1901	108.5 mm (4.3 in)
1902	124.2 mm (4.9 in)
1903	129.7 mm (5.1 in)
1904	107.7 mm (4.2 in)
1905	84.6 mm (3.3 in)
1906	229.5 mm (9.0 in)
1907	78.4 mm (3.1 in)
1908	103.6 mm (4.1 in)
1909	189.2 mm (7.4 in)
1910	108.7 mm (4.3 in)
1911	95.4 mm (3.8 in)
1912	120.6 mm (4.7 in)
1913	134.6 mm (5.3 in)
1914	74.4 mm (2.9 in)
1915	86.4 mm (3.4 in)
1916	115.8 mm (4.6 in)
1917	86.4 mm (3.4 in)
1918	114.6 mm (4.5 in)
1919	119.4 mm (4.7 in)
1920	82.6 mm (3.3 in)
1921	113.2 mm (4.5 in)
1922	102.6 mm (4.0 in)
1923	82.3 mm (3.2 in)
1924	121.4 mm (4.8 in)
1925	178.5 mm (7.0 in)
1926	67.6 mm (2.7 in)
1927	125.2 mm (4.9 in)
1928	190.6 mm (7.5 in)
1929	214.4 mm (8.4 in)
1930	80.0 mm (3.1 in)
1931	79.2 mm (3.1 in)
1932	174.3 mm (6.9 in)
1933	71.6 mm (2.8 in)
1934	83.8 mm (3.3 in)
1935	40.6 mm (1.6 in)
1936	65.5 mm (2.6 in)
1937	80.0 mm (3.1 in)
1938	111.3 mm (4.4 in)
1939	153.4 mm (6.0 in)
1940	180.5 mm (7.1 in)
1941	145.2 mm (5.7 in)
1942	83.3 mm (3.3 in)
1943	96.3 mm (3.8 in)
1944	106.7 mm (4.2 in)
1945	104.4 mm (4.1 in)
1946	120.6 mm (4.7 in)
1947	84.8 mm (3.3 in)
1948	109.0 mm (4.3 in)
1949	118.9 mm (4.7 in)
1950	93.2 mm (3.7 in)
1951	94.5 mm (3.7 in)
1952	88.9 mm (3.5 in)
1953	108.0 mm (4.3 in)
1954	65.3 mm (2.6 in)
1955	89.0 mm (3.5 in)
1956	102.2 mm (4.0 in)
1957	92.9 mm (3.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Trenton 1 NNE, 1893 to 1957. The record is 51 days in 1934, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Trenton 1 NNE by year
Year	Longest dry spell (CDD)
1893	18 days
1894	19 days
1895	27 days
1896	23 days
1897	26 days
1898	19 days
1899	22 days
1900	16 days
1901	21 days
1902	18 days
1903	23 days
1904	48 days
1905	21 days
1906	22 days
1907	21 days
1908	22 days
1909	15 days
1910	26 days
1911	21 days
1912	20 days
1913	14 days
1914	45 days
1915	30 days
1916	35 days
1917	20 days
1918	16 days
1919	35 days
1920	27 days
1921	26 days
1922	24 days
1923	25 days
1924	25 days
1925	27 days
1926	15 days
1927	35 days
1928	17 days
1929	18 days
1930	20 days
1931	35 days
1932	24 days
1933	18 days
1934	51 days
1935	35 days
1936	25 days
1937	18 days
1938	22 days
1939	29 days
1940	28 days
1941	32 days
1942	26 days
1943	47 days
1944	20 days
1945	22 days
1946	22 days
1947	15 days
1948	18 days
1949	18 days
1950	26 days
1951	31 days
1952	32 days
1953	38 days
1954	29 days
1955	20 days
1956	26 days
1957	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.

Frost Dates and Growing Season

42 years with a frost

Across 42 years with a frost, the median last spring frost at Trenton 1 NNE falls on 21 March and the median first autumn frost on 15 November, which leaves a median of 237 days between them.

Fitted over all years, the growing season changes by -2.7 days per decade at this station.

Frost dates and growing season at Trenton 1 NNE
Measure	Median, all years	Earliest period	Recent period (1908 to 1956)	Recent against earliest	Fitted trend
Last spring frost	21 March	n/a	22 March	n/a	+1.3 days per decade
First autumn frost	15 November	n/a	13 November	n/a	-1.4 days per decade
Growing days	237 days	n/a	233 days	n/a	-2.7 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

52 years, 1894 to 1956

A day with at least 67.0 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 150.3 mm (5.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Trenton 1 NNE: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	67.0 mm (2.6 in)
5 years	85.4 mm (3.4 in)
10 years	99.1 mm (3.9 in)
25 years	118.1 mm (4.6 in)
50 years	133.6 mm (5.3 in)
100 years	150.3 mm (5.9 in)	Longer than the 52 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, 52 years of values from 1894 to 1956.

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: 141.0 mm (5.6 in) in 1894; 120.7 mm (4.8 in) in 1901; 114.3 mm (4.5 in) in 1898.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Trenton 1 NNE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Trenton 1 NNE 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).