Poughkeepsie Weather Records (USC00306817)

Record envelope, standing records and threshold days for Poughkeepsie (USC00306817), New York, United States, with 79 years of record.

Key Facts for Poughkeepsie

Poughkeepsie (USC00306817) is a weather station in New York, United States at 41.68 latitude and -73.93 longitude, 31 m (102 ft) above sea level.
The station reports from 1893 to 1971, 79 years of record.
1,464 records set at Poughkeepsie still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Poughkeepsie set a daily record snowfall of 18.5 cm (7.3 in) on 19 March 1971.

About the Station

Location: New York, United States, 41.68 latitude, -73.93 longitude.
Elevation: 31 m (102 ft).
Period of record: 1893 to 1971, 79 years.
Eligible elements: tmax, tmin, 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 Poughkeepsie. 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 Poughkeepsie, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	20.6 C (69.1 F)	-28.9 C (-20.0 F)	n/a	n/a
Feb	21.1 C (70.0 F)	-29.4 C (-20.9 F)	n/a	n/a
Mar	28.9 C (84.0 F)	-22.2 C (-8.0 F)	n/a	n/a
Apr	34.4 C (93.9 F)	-12.2 C (10.0 F)	n/a	n/a
May	38.9 C (102.0 F)	-3.9 C (25.0 F)	n/a	n/a
Jun	38.9 C (102.0 F)	2.2 C (36.0 F)	n/a	n/a
Jul	41.7 C (107.1 F)	4.4 C (39.9 F)	n/a	n/a
Aug	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
Sep	39.4 C (102.9 F)	-1.7 C (28.9 F)	n/a	n/a
Oct	32.8 C (91.0 F)	-7.8 C (18.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-15.0 C (5.0 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-26.1 C (-15.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Poughkeepsie still stand. 1895 holds the most, with 65.

Standing records at Poughkeepsie by the year they were set
Year set	Standing records
1893	40
1894	60
1895	65
1896	55
1897	36
1898	32
1899	45
1900	14
1928	24
1929	29
1930	28
1931	27
1932	20
1933	43
1934	39
1935	27
1936	32
1937	24
1938	35
1939	20
1940	22
1941	35
1942	29
1943	31
1944	26
1945	43
1946	25
1947	24
1948	26
1949	39
1950	31
1951	16
1952	14
1953	23
1954	31
1955	27
1956	30
1957	27
1958	16
1959	24
1960	14
1961	17
1962	30
1963	29
1964	18
1965	23
1966	21
1967	12
1968	23
1969	16
1970	26
1971	1

All-Time Record Progression

3 new records

3 all-time records were set at Poughkeepsie between 20 January 1961 and 9 January 1968. Each dot is a new record.

When Poughkeepsie set new all-time records
Date	Kind	Detail
1961-01-20	Record snow depth	Record snow depth 91.4 cm (36.0 in)
1966-07-03	Record high maximum temperature	Record high maximum temperature 41.7 C (107.1 F)
1968-01-09	Record low maximum temperature	Record low maximum temperature -16.1 C (3.0 F)

Wettest Day of Each Month

Sep: 153.7 mm (6.1 in)

The wettest day on record for each calendar month at Poughkeepsie. The most was 153.7 mm (6.1 in) on 16 September 1930.

Record daily precipitation for each month at Poughkeepsie
Month	Record daily precipitation (mm)	Date
Jan	46.5 mm (1.8 in)	6 January 1962
Feb	51.6 mm (2.0 in)	20 February 1898
Mar	54.6 mm (2.1 in)	28 March 1932
Apr	63.2 mm (2.5 in)	5 April 1952
May	75.4 mm (3.0 in)	4 May 1893
Jun	63.2 mm (2.5 in)	19 June 1934
Jul	101.3 mm (4.0 in)	27 July 1934
Aug	139.7 mm (5.5 in)	19 August 1955
Sep	153.7 mm (6.1 in)	16 September 1930
Oct	120.4 mm (4.7 in)	16 October 1955
Nov	85.3 mm (3.4 in)	19 November 1932
Dec	81.8 mm (3.2 in)	30 December 1948

Period of Record Coverage

1893 to 1971

52 years of record at Poughkeepsie, 1893 to 1971. 5 years have data for under 90 percent of days and are left out of rankings: 1900, 1928, 1929, 1930, 1971.

Days with data per year at Poughkeepsie
Year	Days with data	Share of year	Complete
1893	362	99%	Yes
1894	365	100%	Yes
1895	362	99%	Yes
1896	363	99%	Yes
1897	364	100%	Yes
1898	363	99%	Yes
1899	359	98%	Yes
1900	151	41%	No
1928	270	74%	No
1929	286	78%	No
1930	229	63%	No
1931	354	97%	Yes
1932	352	96%	Yes
1933	339	93%	Yes
1934	360	99%	Yes
1935	365	100%	Yes
1936	363	99%	Yes
1937	364	100%	Yes
1938	364	100%	Yes
1939	363	99%	Yes
1940	365	100%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	364	100%	Yes
1944	366	100%	Yes
1945	365	100%	Yes
1946	363	99%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	364	100%	Yes
1950	365	100%	Yes
1951	364	100%	Yes
1952	365	100%	Yes
1953	363	99%	Yes
1954	364	100%	Yes
1955	364	100%	Yes
1956	366	100%	Yes
1957	363	99%	Yes
1958	363	99%	Yes
1959	331	91%	Yes
1960	361	99%	Yes
1961	363	99%	Yes
1962	363	99%	Yes
1963	363	99%	Yes
1964	366	100%	Yes
1965	364	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	333	91%	Yes
1969	365	100%	Yes
1970	364	100%	Yes
1971	90	25%	No

Latest Records

Latest records at Poughkeepsie
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 March 1971	Poughkeepsie, US	daily snowfall	18.5 cm (7.3 in)	10.9 cm (4.3 in)	37 years	33 of 100 (Routine)
6 March 1971	Poughkeepsie, US	daily snow depth (Tie)	20.3 cm (8.0 in)	tie	8 years	1 of 100 (Routine)
5 March 1971	Poughkeepsie, US	daily snow depth	20.3 cm (8.0 in)	5.1 cm (2.0 in)	1 year	9 of 100 (Routine)
1 February 1971	Poughkeepsie, US	daily low max	-10.6 C (12.9 F)	2.8 C (5.0 F)	70 years	33 of 100 (Routine)
28 January 1971	Poughkeepsie, US	daily low max (Tie)	-6.7 C (19.9 F)	tie	36 years	4 of 100 (Routine)
19 January 1971	Poughkeepsie, US	daily low max (Tie)	-9.4 C (15.1 F)	tie	32 years	4 of 100 (Routine)
19 January 1971	Poughkeepsie, US	daily low min (Tie)	-23.3 C (-9.9 F)	tie	23 years	3 of 100 (Routine)
11 December 1970	Poughkeepsie, US	daily snow depth (Tie)	7.6 cm (3.0 in)	tie	8 years	1 of 100 (Routine)
2 December 1970	Poughkeepsie, US	daily high min	6.7 C (44.1 F)	3.4 C (6.1 F)	70 years	33 of 100 (Routine)
2 December 1970	Poughkeepsie, US	monthly high max	21.1 C (70.0 F)	1.1 C (2.0 F)	23 years	26 of 100 (Routine)
12 November 1970	Poughkeepsie, US	daily high min	12.2 C (54.0 F)	4.4 C (7.9 F)	3 years	15 of 100 (Routine)
11 November 1970	Poughkeepsie, US	daily high min	12.2 C (54.0 F)	1.1 C (2.0 F)	35 years	19 of 100 (Routine)
25 October 1970	Poughkeepsie, US	daily high min (Tie)	10.0 C (50.0 F)	tie	39 years	4 of 100 (Routine)
23 October 1970	Poughkeepsie, US	daily high min	15.6 C (60.1 F)	2.8 C (5.0 F)	76 years	35 of 100 (Notable)
22 October 1970	Poughkeepsie, US	daily rain	34.5 mm (1.4 in)	10.9 mm (0.4 in)	40 years	27 of 100 (Routine)
14 October 1970	Poughkeepsie, US	daily high min	17.8 C (64.0 F)	3.4 C (6.1 F)	16 years	17 of 100 (Routine)
26 September 1970	Poughkeepsie, US	daily high min	20.0 C (68.0 F)	1.1 C (2.0 F)	40 years	21 of 100 (Routine)
25 September 1970	Poughkeepsie, US	daily high max (Tie)	33.3 C (91.9 F)	tie	40 years	4 of 100 (Routine)
24 September 1970	Poughkeepsie, US	daily high min (Tie)	18.3 C (64.9 F)	tie	1 year	1 of 100 (Routine)
23 September 1970	Poughkeepsie, US	daily high min	21.7 C (71.1 F)	1.7 C (3.1 F)	19 years	15 of 100 (Routine)

Climate Trend

45 complete years, 1893 to 1970

One stripe for each of 45 complete years at Poughkeepsie, 1893 to 1970. Blue stripes are years cooler than the station's own mean of 10.3 C (50.5 F); red stripes are warmer. The coolest year was 1893, at 8.3 C (47.0 F), and the warmest was 1941, at 11.9 C (53.3 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Poughkeepsie as warming stripes, 1893 to 1970
Year	Annual mean temperature	Difference from the station mean
1893	8.3 C	-1.94 C
1894	9.0 C	-1.32 C
1895	8.6 C	-1.67 C
1896	9.0 C	-1.25 C
1897	9.1 C	-1.17 C
1898	9.7 C	-0.60 C
1899	9.1 C	-1.22 C
1931	11.2 C	+0.95 C
1932	11.0 C	+0.72 C
1933	11.0 C	+0.67 C
1934	9.6 C	-0.67 C
1935	9.8 C	-0.45 C
1936	10.6 C	+0.28 C
1937	10.3 C	+0.05 C
1938	10.6 C	+0.35 C
1939	10.1 C	-0.17 C
1940	8.9 C	-1.34 C
1941	11.9 C	+1.58 C
1942	10.4 C	+0.07 C
1943	9.9 C	-0.37 C
1944	10.3 C	+0.01 C
1945	10.2 C	-0.04 C
1946	10.8 C	+0.55 C
1947	10.1 C	-0.15 C
1948	10.3 C	0.00 C
1949	11.7 C	+1.42 C
1950	9.8 C	-0.45 C
1951	10.6 C	+0.31 C
1952	10.9 C	+0.62 C
1953	11.8 C	+1.50 C
1954	10.5 C	+0.26 C
1955	10.4 C	+0.16 C
1956	10.3 C	-0.01 C
1957	11.4 C	+1.13 C
1958	9.8 C	-0.53 C
1960	11.0 C	+0.71 C
1961	10.7 C	+0.43 C
1962	9.4 C	-0.84 C
1963	9.7 C	-0.54 C
1964	11.3 C	+0.99 C
1965	10.8 C	+0.51 C
1966	10.9 C	+0.60 C
1967	10.6 C	+0.28 C
1969	10.7 C	+0.38 C
1970	10.6 C	+0.34 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1893 to 1970. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Poughkeepsie
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.4 F (0.3 to 0.6) per decade	1893 to 1970	45	Rise
Mean daily maximum	0.2 C (0.1 to 0.3) per decade	0.3 F (0.2 to 0.5) per decade	1893 to 1970	45	Rise
Mean daily minimum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1893 to 1970	45	Rise

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 1971

Yearly extremes at Poughkeepsie: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.7 C (107.1 F)	1966	36.7 C (98.1 F)	52
Coldest night (TNn)	-29.4 C (-20.9 F)	1899	-22.2 C (-8.0 F)	52
Wettest day (Rx1day)	153.7 mm (6.1 in)	1930	57.8 mm (2.3 in)	52
Wettest five days (Rx5day)	197.8 mm (7.8 in)	1938	84.4 mm (3.3 in)	52
Longest dry spell (CDD)	36 days	1948	19 days	52

Hottest day (TXx)

The hottest day of the year at Poughkeepsie, 1893 to 1971. The record is 41.7 C (107.1 F) in 1966, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Poughkeepsie by year
Year	Hottest day (TXx)
1893	36.7 C (98.1 F)
1894	36.7 C (98.1 F)
1895	37.2 C (99.0 F)
1896	35.6 C (96.1 F)
1897	35.6 C (96.1 F)
1898	38.9 C (102.0 F)
1899	36.7 C (98.1 F)
1900	34.4 C (93.9 F)
1928	37.2 C (99.0 F)
1929	38.3 C (100.9 F)
1930	39.4 C (102.9 F)
1931	32.8 C (91.0 F)
1932	34.4 C (93.9 F)
1933	40.0 C (104.0 F)
1934	36.7 C (98.1 F)
1935	35.0 C (95.0 F)
1936	39.4 C (102.9 F)
1937	37.8 C (100.0 F)
1938	36.1 C (97.0 F)
1939	36.7 C (98.1 F)
1940	35.6 C (96.1 F)
1941	37.2 C (99.0 F)
1942	35.6 C (96.1 F)
1943	36.7 C (98.1 F)
1944	36.7 C (98.1 F)
1945	36.1 C (97.0 F)
1946	37.2 C (99.0 F)
1947	36.7 C (98.1 F)
1948	37.8 C (100.0 F)
1949	38.9 C (102.0 F)
1950	33.3 C (91.9 F)
1951	33.9 C (93.0 F)
1952	37.8 C (100.0 F)
1953	39.4 C (102.9 F)
1954	38.3 C (100.9 F)
1955	37.8 C (100.0 F)
1956	37.8 C (100.0 F)
1957	38.9 C (102.0 F)
1958	36.1 C (97.0 F)
1959	38.9 C (102.0 F)
1960	33.9 C (93.0 F)
1961	36.1 C (97.0 F)
1962	38.9 C (102.0 F)
1963	36.7 C (98.1 F)
1964	38.9 C (102.0 F)
1965	37.8 C (100.0 F)
1966	41.7 C (107.1 F)
1967	35.6 C (96.1 F)
1968	37.8 C (100.0 F)
1969	36.1 C (97.0 F)
1970	36.7 C (98.1 F)
1971	16.7 C (62.1 F)

Coldest night (TNn)

The coldest night of the year at Poughkeepsie, 1893 to 1971. The record is -29.4 C (-20.9 F) in 1899, marked on the chart; the median year is -22.2 C (-8.0 F).

Coldest night (TNn) at Poughkeepsie by year
Year	Coldest night (TNn)
1893	-28.3 C (-18.9 F)
1894	-27.2 C (-17.0 F)
1895	-26.1 C (-15.0 F)
1896	-23.9 C (-11.0 F)
1897	-23.9 C (-11.0 F)
1898	-27.8 C (-18.0 F)
1899	-29.4 C (-20.9 F)
1900	-25.6 C (-14.1 F)
1928	-10.6 C (12.9 F)
1929	-18.3 C (-0.9 F)
1930	-22.2 C (-8.0 F)
1931	-21.1 C (-6.0 F)
1932	-18.9 C (-2.0 F)
1933	-26.1 C (-15.0 F)
1934	-26.7 C (-16.1 F)
1935	-25.6 C (-14.1 F)
1936	-22.2 C (-8.0 F)
1937	-12.2 C (10.0 F)
1938	-22.2 C (-8.0 F)
1939	-19.4 C (-2.9 F)
1940	-20.0 C (-4.0 F)
1941	-20.0 C (-4.0 F)
1942	-25.6 C (-14.1 F)
1943	-26.1 C (-15.0 F)
1944	-20.0 C (-4.0 F)
1945	-27.8 C (-18.0 F)
1946	-19.4 C (-2.9 F)
1947	-21.1 C (-6.0 F)
1948	-24.4 C (-11.9 F)
1949	-15.6 C (3.9 F)
1950	-21.1 C (-6.0 F)
1951	-17.8 C (0.0 F)
1952	-16.7 C (1.9 F)
1953	-12.2 C (10.0 F)
1954	-23.3 C (-9.9 F)
1955	-26.1 C (-15.0 F)
1956	-16.1 C (3.0 F)
1957	-26.1 C (-15.0 F)
1958	-19.4 C (-2.9 F)
1959	-17.8 C (0.0 F)
1960	-18.9 C (-2.0 F)
1961	-26.1 C (-15.0 F)
1962	-23.3 C (-9.9 F)
1963	-25.0 C (-13.0 F)
1964	-22.2 C (-8.0 F)
1965	-21.7 C (-7.1 F)
1966	-17.2 C (1.0 F)
1967	-19.4 C (-2.9 F)
1968	-23.3 C (-9.9 F)
1969	-23.3 C (-9.9 F)
1970	-21.1 C (-6.0 F)
1971	-23.3 C (-9.9 F)

Wettest day (Rx1day)

The wettest day of the year at Poughkeepsie, 1893 to 1971. The record is 153.7 mm (6.1 in) in 1930, marked on the chart; the median year is 57.8 mm (2.3 in).

Wettest day (Rx1day) at Poughkeepsie by year
Year	Wettest day (Rx1day)
1893	101.6 mm (4.0 in)
1894	55.1 mm (2.2 in)
1895	31.5 mm (1.2 in)
1896	87.6 mm (3.4 in)
1897	57.2 mm (2.3 in)
1898	51.8 mm (2.0 in)
1899	44.2 mm (1.7 in)
1900	71.6 mm (2.8 in)
1928	58.2 mm (2.3 in)
1929	65.5 mm (2.6 in)
1930	153.7 mm (6.1 in)
1931	38.1 mm (1.5 in)
1932	85.3 mm (3.4 in)
1933	74.9 mm (2.9 in)
1934	101.3 mm (4.0 in)
1935	45.7 mm (1.8 in)
1936	61.5 mm (2.4 in)
1937	57.4 mm (2.3 in)
1938	85.6 mm (3.4 in)
1939	38.9 mm (1.5 in)
1940	49.5 mm (1.9 in)
1941	47.2 mm (1.9 in)
1942	47.5 mm (1.9 in)
1943	63.0 mm (2.5 in)
1944	53.3 mm (2.1 in)
1945	67.3 mm (2.6 in)
1946	85.6 mm (3.4 in)
1947	59.2 mm (2.3 in)
1948	81.8 mm (3.2 in)
1949	44.5 mm (1.8 in)
1950	45.0 mm (1.8 in)
1951	49.0 mm (1.9 in)
1952	88.6 mm (3.5 in)
1953	65.5 mm (2.6 in)
1954	55.1 mm (2.2 in)
1955	139.7 mm (5.5 in)
1956	54.6 mm (2.1 in)
1957	50.3 mm (2.0 in)
1958	50.3 mm (2.0 in)
1959	61.0 mm (2.4 in)
1960	88.9 mm (3.5 in)
1961	44.5 mm (1.8 in)
1962	67.3 mm (2.6 in)
1963	49.3 mm (1.9 in)
1964	36.6 mm (1.4 in)
1965	40.1 mm (1.6 in)
1966	89.2 mm (3.5 in)
1967	34.3 mm (1.4 in)
1968	68.6 mm (2.7 in)
1969	69.9 mm (2.8 in)
1970	58.4 mm (2.3 in)
1971	18.8 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Poughkeepsie, 1893 to 1971. The record is 197.8 mm (7.8 in) in 1938, marked on the chart; the median year is 84.4 mm (3.3 in).

Wettest five days (Rx5day) at Poughkeepsie by year
Year	Wettest five days (Rx5day)
1893	102.1 mm (4.0 in)
1894	79.7 mm (3.1 in)
1895	60.4 mm (2.4 in)
1896	97.5 mm (3.8 in)
1897	123.5 mm (4.9 in)
1898	84.7 mm (3.3 in)
1899	57.7 mm (2.3 in)
1900	71.6 mm (2.8 in)
1928	115.9 mm (4.6 in)
1929	77.0 mm (3.0 in)
1930	163.8 mm (6.4 in)
1931	74.4 mm (2.9 in)
1932	94.5 mm (3.7 in)
1933	171.6 mm (6.8 in)
1934	146.2 mm (5.8 in)
1935	66.6 mm (2.6 in)
1936	70.9 mm (2.8 in)
1937	74.4 mm (2.9 in)
1938	197.8 mm (7.8 in)
1939	54.6 mm (2.1 in)
1940	83.8 mm (3.3 in)
1941	56.1 mm (2.2 in)
1942	72.0 mm (2.8 in)
1943	103.1 mm (4.1 in)
1944	93.4 mm (3.7 in)
1945	162.3 mm (6.4 in)
1946	129.1 mm (5.1 in)
1947	115.8 mm (4.6 in)
1948	147.1 mm (5.8 in)
1949	147.9 mm (5.8 in)
1950	51.5 mm (2.0 in)
1951	87.2 mm (3.4 in)
1952	104.1 mm (4.1 in)
1953	80.8 mm (3.2 in)
1954	86.1 mm (3.4 in)
1955	178.0 mm (7.0 in)
1956	69.8 mm (2.7 in)
1957	81.3 mm (3.2 in)
1958	109.7 mm (4.3 in)
1959	77.2 mm (3.0 in)
1960	102.6 mm (4.0 in)
1961	56.9 mm (2.2 in)
1962	67.9 mm (2.7 in)
1963	84.1 mm (3.3 in)
1964	37.3 mm (1.5 in)
1965	57.3 mm (2.3 in)
1966	95.5 mm (3.8 in)
1967	61.5 mm (2.4 in)
1968	109.5 mm (4.3 in)
1969	153.3 mm (6.0 in)
1970	73.6 mm (2.9 in)
1971	21.6 mm (0.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Poughkeepsie, 1893 to 1971. The record is 36 days in 1948, marked on the chart; the median year is 19 days.

Longest dry spell (CDD) at Poughkeepsie by year
Year	Longest dry spell (CDD)
1893	32 days
1894	17 days
1895	19 days
1896	12 days
1897	19 days
1898	15 days
1899	30 days
1900	16 days
1928	19 days
1929	17 days
1930	20 days
1931	14 days
1932	17 days
1933	13 days
1934	17 days
1935	18 days
1936	20 days
1937	14 days
1938	22 days
1939	25 days
1940	22 days
1941	22 days
1942	25 days
1943	19 days
1944	35 days
1945	17 days
1946	18 days
1947	35 days
1948	36 days
1949	21 days
1950	16 days
1951	16 days
1952	25 days
1953	18 days
1954	12 days
1955	29 days
1956	17 days
1957	13 days
1958	20 days
1959	13 days
1960	19 days
1961	15 days
1962	18 days
1963	24 days
1964	28 days
1965	20 days
1966	26 days
1967	20 days
1968	26 days
1969	22 days
1970	20 days
1971	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.

Frost Dates and Growing Season

45 years with a frost

Across 45 years with a frost, the median last spring frost at Poughkeepsie falls on 24 April and the median first autumn frost on 14 October, which leaves a median of 171 days between them.

Fitted over all years, the growing season changes by +3.1 days per decade at this station.

Frost dates and growing season at Poughkeepsie
Measure	Median, all years	Earliest period	Recent period (1939 to 1970)	Recent against earliest	Fitted trend
Last spring frost	24 April	n/a	20 April	n/a	-1.5 days per decade
First autumn frost	14 October	n/a	15 October	n/a	+1.6 days per decade
Growing days	171 days	n/a	179 days	n/a	+3.1 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

46 years, 1893 to 1970

A day with at least 57.7 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 161.7 mm (6.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Poughkeepsie: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	57.7 mm (2.3 in)
5 years	78.7 mm (3.1 in)
10 years	95.1 mm (3.7 in)
25 years	118.8 mm (4.7 in)
50 years	139.1 mm (5.5 in)	Longer than the 46 years of record
100 years	161.7 mm (6.4 in)	Longer than the 46 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, 46 years of values from 1893 to 1970.

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: 153.7 mm (6.1 in) in 1930; 139.7 mm (5.5 in) in 1955; 101.6 mm (4.0 in) in 1893.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Poughkeepsie, at 1931. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1931 ran 0.6 C (1.0 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at Poughkeepsie, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1931	+0.6	+1.0	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

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