Harkness Weather Records (USC00303662)

Record envelope, standing records and threshold days for Harkness (USC00303662), New York, United States, with 31 years of record.

Key Facts for Harkness

Harkness (USC00303662) is a weather station in New York, United States at 44.53 latitude and -73.57 longitude, 190 m (622 ft) above sea level.
The station reports from 1902 to 1932, 31 years of record.
1,464 records set at Harkness still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Harkness set a daily record precipitation of 19.1 mm (0.8 in) on 31 December 1932.

About the Station

Location: New York, United States, 44.53 latitude, -73.57 longitude.
Elevation: 190 m (622 ft).
Period of record: 1902 to 1932, 31 years.
Eligible elements: tmax, tmin, prcp.

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 Harkness. 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 Harkness, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.8 C (64.0 F)	-35.0 C (-31.0 F)	n/a	n/a
Feb	15.6 C (60.1 F)	-35.6 C (-32.1 F)	n/a	n/a
Mar	23.9 C (75.0 F)	-25.6 C (-14.1 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-16.1 C (3.0 F)	n/a	n/a
May	34.4 C (93.9 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	35.6 C (96.1 F)	-0.6 C (30.9 F)	n/a	n/a
Jul	38.9 C (102.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	36.7 C (98.1 F)	2.8 C (37.0 F)	n/a	n/a
Sep	35.0 C (95.0 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	29.4 C (84.9 F)	-10.6 C (12.9 F)	n/a	n/a
Nov	23.3 C (73.9 F)	-18.9 C (-2.0 F)	n/a	n/a
Dec	16.7 C (62.1 F)	-34.4 C (-29.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Harkness still stand. 1903 holds the most, with 73.

Standing records at Harkness by the year they were set
Year set	Standing records
1902	43
1903	73
1904	53
1905	29
1906	44
1907	52
1908	48
1909	41
1910	33
1911	63
1912	56
1913	60
1914	65
1915	35
1916	65
1917	44
1918	58
1919	50
1920	43
1921	52
1922	44
1923	54
1924	28
1925	44
1926	39
1927	33
1928	35
1929	51
1930	57
1931	44
1932	28

All-Time Record Progression

1 new records

1 all-time records were set at Harkness between 6 October 1932 and 6 October 1932. Each dot is a new record.

Wettest Day of Each Month

Oct: 133.4 mm (5.3 in)

The wettest day on record for each calendar month at Harkness. The most was 133.4 mm (5.3 in) on 6 October 1932.

Record daily precipitation for each month at Harkness
Month	Record daily precipitation (mm)	Date
Jan	50.8 mm (2.0 in)	30 January 1925
Feb	47.5 mm (1.9 in)	26 February 1916
Mar	46.2 mm (1.8 in)	28 March 1925
Apr	39.6 mm (1.6 in)	17 April 1929
May	36.8 mm (1.4 in)	11 May 1909
Jun	73.2 mm (2.9 in)	12 June 1903
Jul	70.6 mm (2.8 in)	30 July 1905
Aug	49.5 mm (1.9 in)	31 August 1918
Sep	68.6 mm (2.7 in)	13 September 1920
Oct	133.4 mm (5.3 in)	6 October 1932
Nov	54.6 mm (2.1 in)	23 November 1924
Dec	39.1 mm (1.5 in)	14 December 1915

Period of Record Coverage

1902 to 1932

31 years of record at Harkness, 1902 to 1932. 2 years have data for under 90 percent of days and are left out of rankings: 1902, 1932.

Days with data per year at Harkness
Year	Days with data	Share of year	Complete
1902	237	65%	No
1903	360	99%	Yes
1904	363	99%	Yes
1905	363	99%	Yes
1906	362	99%	Yes
1907	364	100%	Yes
1908	361	99%	Yes
1909	364	100%	Yes
1910	364	100%	Yes
1911	364	100%	Yes
1912	366	100%	Yes
1913	365	100%	Yes
1914	364	100%	Yes
1915	364	100%	Yes
1916	364	99%	Yes
1917	365	100%	Yes
1918	364	100%	Yes
1919	364	100%	Yes
1920	366	100%	Yes
1921	362	99%	Yes
1922	363	99%	Yes
1923	362	99%	Yes
1924	365	100%	Yes
1925	364	100%	Yes
1926	363	99%	Yes
1927	365	100%	Yes
1928	365	100%	Yes
1929	363	99%	Yes
1930	365	100%	Yes
1931	356	98%	Yes
1932	239	65%	No

Latest Records

Latest records at Harkness
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 December 1932	Harkness, US	daily rain	19.1 mm (0.8 in)	14.5 mm (0.6 in)	14 years	20 of 100 (Routine)
10 November 1932	Harkness, US	daily rain	24.6 mm (1.0 in)	11.1 mm (0.4 in)	11 years	20 of 100 (Routine)
7 October 1932	Harkness, US	daily rain	13.2 mm (0.5 in)	3.0 mm (0.12 in)	26 years	13 of 100 (Routine)
6 October 1932	Harkness, US	all-time rain	133.4 mm (5.3 in)	60.2 mm (2.4 in)	29 years	71 of 100 (Major)
27 August 1932	Harkness, US	daily high min (Tie)	17.2 C (63.0 F)	tie	26 years	2 of 100 (Routine)
26 August 1932	Harkness, US	daily high min	20.0 C (68.0 F)	1.7 C (3.1 F)	23 years	13 of 100 (Routine)
26 August 1932	Harkness, US	daily high max	33.3 C (91.9 F)	2.2 C (4.0 F)	3 years	8 of 100 (Routine)
25 August 1932	Harkness, US	daily high max	33.3 C (91.9 F)	1.1 C (2.0 F)	23 years	11 of 100 (Routine)
23 August 1932	Harkness, US	daily low min	8.3 C (46.9 F)	1.7 C (3.1 F)	29 years	15 of 100 (Routine)
30 July 1932	Harkness, US	daily low max (Tie)	18.9 C (66.0 F)	tie	27 years	2 of 100 (Routine)
27 July 1932	Harkness, US	daily rain	19.1 mm (0.8 in)	6.1 mm (0.24 in)	5 years	10 of 100 (Routine)
16 July 1932	Harkness, US	daily low min	10.0 C (50.0 F)	1.1 C (2.0 F)	24 years	13 of 100 (Routine)
25 June 1932	Harkness, US	daily low min	6.1 C (43.0 F)	1.1 C (2.0 F)	21 years	11 of 100 (Routine)
24 June 1932	Harkness, US	daily low min (Tie)	5.6 C (42.1 F)	tie	21 years	2 of 100 (Routine)
23 June 1932	Harkness, US	daily low min	5.0 C (41.0 F)	0.6 C (1.1 F)	14 years	8 of 100 (Routine)
9 June 1932	Harkness, US	daily low max	12.8 C (55.0 F)	1.6 C (2.9 F)	25 years	13 of 100 (Routine)
8 June 1932	Harkness, US	daily low min	2.2 C (36.0 F)	1.1 C (2.0 F)	3 years	5 of 100 (Routine)
25 May 1932	Harkness, US	daily high max	28.3 C (82.9 F)	0.5 C (0.9 F)	9 years	5 of 100 (Routine)
21 May 1932	Harkness, US	daily rain	17.5 mm (0.7 in)	1.8 mm (0.07 in)	20 years	11 of 100 (Routine)
16 May 1932	Harkness, US	daily high max	32.2 C (90.0 F)	7.8 C (14.0 F)	14 years	21 of 100 (Routine)

Climate Trend

29 complete years, 1903 to 1931

One stripe for each of 29 complete years at Harkness, 1903 to 1931. Blue stripes are years cooler than the station's own mean of 6.6 C (43.9 F); red stripes are warmer. The coolest year was 1904, at 4.9 C (40.8 F), and the warmest was 1921, at 8.4 C (47.1 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Harkness as warming stripes, 1903 to 1931
Year	Annual mean temperature	Difference from the station mean
1903	7.0 C	+0.39 C
1904	4.9 C	-1.74 C
1905	6.1 C	-0.56 C
1906	6.5 C	-0.10 C
1907	5.7 C	-0.91 C
1908	7.0 C	+0.42 C
1909	6.4 C	-0.22 C
1910	6.4 C	-0.18 C
1911	7.0 C	+0.39 C
1912	6.1 C	-0.57 C
1913	7.9 C	+1.24 C
1914	5.9 C	-0.68 C
1915	7.3 C	+0.72 C
1916	6.5 C	-0.08 C
1917	5.0 C	-1.63 C
1918	6.3 C	-0.36 C
1919	7.1 C	+0.43 C
1920	6.6 C	-0.03 C
1921	8.4 C	+1.75 C
1922	7.1 C	+0.45 C
1923	6.2 C	-0.45 C
1924	6.2 C	-0.44 C
1925	6.7 C	+0.09 C
1926	5.2 C	-1.40 C
1927	7.2 C	+0.60 C
1928	7.0 C	+0.36 C
1929	6.8 C	+0.21 C
1930	7.5 C	+0.86 C
1931	8.2 C	+1.53 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

1902 to 1932

Yearly extremes at Harkness: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	1911	33.9 C (93.0 F)	31
Coldest night (TNn)	-35.6 C (-32.1 F)	1920	-28.9 C (-20.0 F)	31
Wettest day (Rx1day)	133.4 mm (5.3 in)	1932	43.2 mm (1.7 in)	31
Wettest five days (Rx5day)	148.4 mm (5.8 in)	1932	67.4 mm (2.7 in)	31
Longest dry spell (CDD)	52 days	1903	18 days	31

Hottest day (TXx)

The hottest day of the year at Harkness, 1902 to 1932. The record is 38.9 C (102.0 F) in 1911, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at Harkness by year
Year	Hottest day (TXx)
1902	31.7 C (89.1 F)
1903	33.3 C (91.9 F)
1904	35.0 C (95.0 F)
1905	31.7 C (89.1 F)
1906	32.2 C (90.0 F)
1907	35.6 C (96.1 F)
1908	35.0 C (95.0 F)
1909	33.3 C (91.9 F)
1910	32.8 C (91.0 F)
1911	38.9 C (102.0 F)
1912	35.0 C (95.0 F)
1913	35.6 C (96.1 F)
1914	36.1 C (97.0 F)
1915	33.3 C (91.9 F)
1916	35.6 C (96.1 F)
1917	36.7 C (98.1 F)
1918	33.3 C (91.9 F)
1919	35.0 C (95.0 F)
1920	31.7 C (89.1 F)
1921	37.2 C (99.0 F)
1922	32.8 C (91.0 F)
1923	33.9 C (93.0 F)
1924	34.4 C (93.9 F)
1925	33.9 C (93.0 F)
1926	32.8 C (91.0 F)
1927	32.8 C (91.0 F)
1928	31.7 C (89.1 F)
1929	35.6 C (96.1 F)
1930	32.8 C (91.0 F)
1931	35.6 C (96.1 F)
1932	33.3 C (91.9 F)

Coldest night (TNn)

The coldest night of the year at Harkness, 1902 to 1932. The record is -35.6 C (-32.1 F) in 1920, marked on the chart; the median year is -28.9 C (-20.0 F).

Coldest night (TNn) at Harkness by year
Year	Coldest night (TNn)
1902	-27.2 C (-17.0 F)
1903	-27.8 C (-18.0 F)
1904	-31.1 C (-24.0 F)
1905	-24.4 C (-11.9 F)
1906	-30.0 C (-22.0 F)
1907	-30.0 C (-22.0 F)
1908	-33.3 C (-27.9 F)
1909	-28.3 C (-18.9 F)
1910	-27.2 C (-17.0 F)
1911	-25.6 C (-14.1 F)
1912	-30.0 C (-22.0 F)
1913	-23.9 C (-11.0 F)
1914	-32.8 C (-27.0 F)
1915	-28.3 C (-18.9 F)
1916	-28.9 C (-20.0 F)
1917	-34.4 C (-29.9 F)
1918	-31.7 C (-25.1 F)
1919	-26.7 C (-16.1 F)
1920	-35.6 C (-32.1 F)
1921	-26.1 C (-15.0 F)
1922	-31.7 C (-25.1 F)
1923	-31.1 C (-24.0 F)
1924	-30.6 C (-23.1 F)
1925	-34.4 C (-29.9 F)
1926	-26.7 C (-16.1 F)
1927	-27.2 C (-17.0 F)
1928	-23.9 C (-11.0 F)
1929	-25.6 C (-14.1 F)
1930	-30.6 C (-23.1 F)
1931	-29.4 C (-20.9 F)
1932	-22.2 C (-8.0 F)

Wettest day (Rx1day)

The wettest day of the year at Harkness, 1902 to 1932. The record is 133.4 mm (5.3 in) in 1932, marked on the chart; the median year is 43.2 mm (1.7 in).

Wettest day (Rx1day) at Harkness by year
Year	Wettest day (Rx1day)
1902	32.3 mm (1.3 in)
1903	73.2 mm (2.9 in)
1904	70.6 mm (2.8 in)
1905	70.6 mm (2.8 in)
1906	29.0 mm (1.1 in)
1907	60.7 mm (2.4 in)
1908	27.4 mm (1.1 in)
1909	38.6 mm (1.5 in)
1910	34.5 mm (1.4 in)
1911	25.7 mm (1.0 in)
1912	35.1 mm (1.4 in)
1913	48.0 mm (1.9 in)
1914	27.4 mm (1.1 in)
1915	39.1 mm (1.5 in)
1916	47.5 mm (1.9 in)
1917	47.0 mm (1.9 in)
1918	49.5 mm (1.9 in)
1919	31.0 mm (1.2 in)
1920	68.6 mm (2.7 in)
1921	26.4 mm (1.0 in)
1922	37.3 mm (1.5 in)
1923	43.9 mm (1.7 in)
1924	58.4 mm (2.3 in)
1925	50.8 mm (2.0 in)
1926	65.5 mm (2.6 in)
1927	43.2 mm (1.7 in)
1928	42.2 mm (1.7 in)
1929	46.5 mm (1.8 in)
1930	27.4 mm (1.1 in)
1931	38.6 mm (1.5 in)
1932	133.4 mm (5.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Harkness, 1902 to 1932. The record is 148.4 mm (5.8 in) in 1932, marked on the chart; the median year is 67.4 mm (2.7 in).

Wettest five days (Rx5day) at Harkness by year
Year	Wettest five days (Rx5day)
1902	60.2 mm (2.4 in)
1903	98.3 mm (3.9 in)
1904	70.6 mm (2.8 in)
1905	107.2 mm (4.2 in)
1906	47.5 mm (1.9 in)
1907	84.5 mm (3.3 in)
1908	46.4 mm (1.8 in)
1909	67.3 mm (2.6 in)
1910	41.1 mm (1.6 in)
1911	34.1 mm (1.3 in)
1912	50.6 mm (2.0 in)
1913	66.8 mm (2.6 in)
1914	40.4 mm (1.6 in)
1915	60.8 mm (2.4 in)
1916	69.1 mm (2.7 in)
1917	88.4 mm (3.5 in)
1918	73.9 mm (2.9 in)
1919	53.0 mm (2.1 in)
1920	92.5 mm (3.6 in)
1921	41.4 mm (1.6 in)
1922	75.6 mm (3.0 in)
1923	66.0 mm (2.6 in)
1924	94.7 mm (3.7 in)
1925	106.6 mm (4.2 in)
1926	65.8 mm (2.6 in)
1927	75.2 mm (3.0 in)
1928	67.4 mm (2.7 in)
1929	102.1 mm (4.0 in)
1930	48.2 mm (1.9 in)
1931	85.0 mm (3.3 in)
1932	148.4 mm (5.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Harkness, 1902 to 1932. The record is 52 days in 1903, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Harkness by year
Year	Longest dry spell (CDD)
1902	9 days
1903	52 days
1904	14 days
1905	21 days
1906	11 days
1907	13 days
1908	22 days
1909	13 days
1910	23 days
1911	19 days
1912	22 days
1913	18 days
1914	16 days
1915	26 days
1916	25 days
1917	21 days
1918	17 days
1919	35 days
1920	14 days
1921	25 days
1922	15 days
1923	17 days
1924	37 days
1925	18 days
1926	12 days
1927	28 days
1928	13 days
1929	18 days
1930	13 days
1931	15 days
1932	22 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Harkness falls on 11 May and the median first autumn frost on 3 October, which leaves a median of 144 days between them.

Fitted over all years, the growing season changes by +2.8 days per decade at this station.

Frost dates and growing season at Harkness
Measure	Median, all years	Earliest period	Recent period (1903 to 1931)	Recent against earliest	Fitted trend
Last spring frost	11 May	n/a	11 May	n/a	-1.2 days per decade
First autumn frost	3 October	n/a	3 October	n/a	+1.6 days per decade
Growing days	144 days	n/a	144 days	n/a	+2.8 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.

Download the Data

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