Winchendon Weather Records (USC00199770)

Record envelope, standing records and threshold days for Winchendon (USC00199770), Massachusetts, United States, with 71 years of record.

Key Facts for Winchendon

Winchendon (USC00199770) is a weather station in Massachusetts, United States at 42.70 latitude and -72.08 longitude, 262 m (860 ft) above sea level.
The station reports from 1893 to 1963, 71 years of record.
0 records set at Winchendon still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Winchendon set a daily record precipitation of 36.3 mm (1.4 in) on 20 February 1963.

About the Station

Location: Massachusetts, United States, 42.70 latitude, -72.08 longitude.
Elevation: 262 m (860 ft).
Period of record: 1893 to 1963, 71 years.
Eligible elements: 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 Winchendon. 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 Winchendon, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Winchendon still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Winchendon between 22 July 1925 and 20 September 1938. Each dot is a new record.

When Winchendon set new all-time records
Date	Kind	Detail
1925-07-22	Record daily precipitation	Record daily precipitation 101.1 mm (4.0 in)
1938-09-20	Record daily precipitation	Record daily precipitation 199.4 mm (7.9 in)

Wettest Day of Each Month

Sep: 199.4 mm (7.9 in)

The wettest day on record for each calendar month at Winchendon. The most was 199.4 mm (7.9 in) on 20 September 1938.

Record daily precipitation for each month at Winchendon
Month	Record daily precipitation (mm)	Date
Jan	49.5 mm (1.9 in)	9 January 1956
Feb	52.1 mm (2.1 in)	13 February 1900
Mar	65.8 mm (2.6 in)	18 March 1936
Apr	66.5 mm (2.6 in)	12 April 1933
May	64.0 mm (2.5 in)	31 May 1940
Jun	94.0 mm (3.7 in)	22 June 1953
Jul	101.1 mm (4.0 in)	22 July 1925
Aug	88.9 mm (3.5 in)	13 August 1952
Sep	199.4 mm (7.9 in)	20 September 1938
Oct	88.1 mm (3.5 in)	24 October 1923
Nov	90.9 mm (3.6 in)	4 November 1927
Dec	60.2 mm (2.4 in)	5 December 1920

Latest Records

Latest records at Winchendon
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 February 1963	Winchendon, US	daily rain	36.3 mm (1.4 in)	12.4 mm (0.5 in)	39 years	33 of 100 (Routine)
20 February 1963	Winchendon, US	daily snowfall	33.0 cm (13.0 in)	2.5 cm (1.0 in)	41 years	22 of 100 (Routine)
3 February 1963	Winchendon, US	daily rain	22.9 mm (0.9 in)	9.4 mm (0.37 in)	49 years	20 of 100 (Routine)
27 January 1963	Winchendon, US	daily snowfall	21.6 cm (8.5 in)	8.9 cm (3.5 in)	13 years	26 of 100 (Routine)
30 December 1962	Winchendon, US	daily snowfall	12.7 cm (5.0 in)	0.5 cm (0.2 in)	5 years	8 of 100 (Routine)
27 October 1962	Winchendon, US	daily snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	62 years	20 of 100 (Routine)
26 October 1962	Winchendon, US	daily snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	62 years	20 of 100 (Routine)
7 October 1962	Winchendon, US	daily rain	50.3 mm (2.0 in)	26.2 mm (1.0 in)	8 years	32 of 100 (Routine)
6 October 1962	Winchendon, US	daily rain	39.4 mm (1.6 in)	15.8 mm (0.6 in)	29 years	28 of 100 (Routine)
20 May 1962	Winchendon, US	daily rain	22.9 mm (0.9 in)	6.9 mm (0.27 in)	12 years	18 of 100 (Routine)
13 April 1962	Winchendon, US	daily snowfall	11.4 cm (4.5 in)	3.8 cm (1.5 in)	36 years	23 of 100 (Routine)
13 March 1962	Winchendon, US	daily rain	30.5 mm (1.2 in)	1.3 mm (0.05 in)	3 years	8 of 100 (Routine)
15 February 1962	Winchendon, US	daily rain	24.1 mm (0.9 in)	0.5 mm (0.02 in)	42 years	19 of 100 (Routine)
15 February 1962	Winchendon, US	monthly snowfall (Tie)	35.6 cm (14.0 in)	tie	1 year	4 of 100 (Routine)
16 January 1962	Winchendon, US	daily rain (Tie)	17.3 mm (0.7 in)	tie	0 years	1 of 100 (Routine)
7 January 1962	Winchendon, US	daily rain	40.6 mm (1.6 in)	2.8 mm (0.11 in)	12 years	13 of 100 (Routine)
25 December 1961	Winchendon, US	daily snowfall	31.8 cm (12.5 in)	26.7 cm (10.5 in)	59 years	63 of 100 (Major)
25 December 1961	Winchendon, US	daily rain	33.0 mm (1.3 in)	17.8 mm (0.7 in)	16 years	28 of 100 (Routine)
20 December 1961	Winchendon, US	daily snowfall	12.7 cm (5.0 in)	1.3 cm (0.5 in)	15 years	12 of 100 (Routine)
21 November 1961	Winchendon, US	daily snowfall	21.1 cm (8.3 in)	13.5 cm (5.3 in)	18 years	34 of 100 (Routine)

Extremes by Year

1893 to 1963

Yearly extremes at Winchendon: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	199.4 mm (7.9 in)	1938	61.2 mm (2.4 in)	71
Wettest five days (Rx5day)	330.3 mm (13.0 in)	1938	85.8 mm (3.4 in)	71
Longest dry spell (CDD)	42 days	1924	17 days	71

Wettest day (Rx1day)

The wettest day of the year at Winchendon, 1893 to 1963. The record is 199.4 mm (7.9 in) in 1938, marked on the chart; the median year is 61.2 mm (2.4 in).

Wettest day (Rx1day) at Winchendon by year
Year	Wettest day (Rx1day)
1893	53.8 mm (2.1 in)
1894	99.3 mm (3.9 in)
1895	56.1 mm (2.2 in)
1896	61.2 mm (2.4 in)
1897	89.4 mm (3.5 in)
1898	62.2 mm (2.4 in)
1899	70.4 mm (2.8 in)
1900	52.1 mm (2.1 in)
1901	59.4 mm (2.3 in)
1902	78.7 mm (3.1 in)
1903	93.5 mm (3.7 in)
1904	86.6 mm (3.4 in)
1905	75.7 mm (3.0 in)
1906	52.8 mm (2.1 in)
1907	49.5 mm (1.9 in)
1908	42.2 mm (1.7 in)
1909	52.1 mm (2.1 in)
1910	32.3 mm (1.3 in)
1911	42.2 mm (1.7 in)
1912	38.6 mm (1.5 in)
1913	36.1 mm (1.4 in)
1914	50.8 mm (2.0 in)
1915	97.8 mm (3.9 in)
1916	85.1 mm (3.4 in)
1917	71.1 mm (2.8 in)
1918	65.8 mm (2.6 in)
1919	51.8 mm (2.0 in)
1920	89.4 mm (3.5 in)
1921	52.1 mm (2.1 in)
1922	67.1 mm (2.6 in)
1923	88.1 mm (3.5 in)
1924	40.9 mm (1.6 in)
1925	101.1 mm (4.0 in)
1926	45.5 mm (1.8 in)
1927	90.9 mm (3.6 in)
1928	75.7 mm (3.0 in)
1929	31.2 mm (1.2 in)
1930	38.4 mm (1.5 in)
1931	55.6 mm (2.2 in)
1932	98.6 mm (3.9 in)
1933	66.5 mm (2.6 in)
1934	61.0 mm (2.4 in)
1935	57.2 mm (2.3 in)
1936	65.8 mm (2.6 in)
1937	59.7 mm (2.4 in)
1938	199.4 mm (7.9 in)
1939	62.7 mm (2.5 in)
1940	64.0 mm (2.5 in)
1941	70.9 mm (2.8 in)
1942	76.2 mm (3.0 in)
1943	54.4 mm (2.1 in)
1944	97.5 mm (3.8 in)
1945	53.8 mm (2.1 in)
1946	58.7 mm (2.3 in)
1947	52.1 mm (2.1 in)
1948	55.9 mm (2.2 in)
1949	48.3 mm (1.9 in)
1950	87.6 mm (3.4 in)
1951	75.7 mm (3.0 in)
1952	88.9 mm (3.5 in)
1953	94.0 mm (3.7 in)
1954	71.9 mm (2.8 in)
1955	72.9 mm (2.9 in)
1956	49.5 mm (1.9 in)
1957	50.8 mm (2.0 in)
1958	46.2 mm (1.8 in)
1959	73.2 mm (2.9 in)
1960	93.7 mm (3.7 in)
1961	37.8 mm (1.5 in)
1962	50.3 mm (2.0 in)
1963	36.3 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Winchendon, 1893 to 1963. The record is 330.3 mm (13.0 in) in 1938, marked on the chart; the median year is 85.8 mm (3.4 in).

Wettest five days (Rx5day) at Winchendon by year
Year	Wettest five days (Rx5day)
1893	66.3 mm (2.6 in)
1894	109.5 mm (4.3 in)
1895	85.8 mm (3.4 in)
1896	85.8 mm (3.4 in)
1897	135.6 mm (5.3 in)
1898	77.2 mm (3.0 in)
1899	75.9 mm (3.0 in)
1900	80.3 mm (3.2 in)
1901	73.9 mm (2.9 in)
1902	84.0 mm (3.3 in)
1903	112.1 mm (4.4 in)
1904	90.6 mm (3.6 in)
1905	153.1 mm (6.0 in)
1906	100.0 mm (3.9 in)
1907	81.0 mm (3.2 in)
1908	89.0 mm (3.5 in)
1909	71.1 mm (2.8 in)
1910	52.3 mm (2.1 in)
1911	108.2 mm (4.3 in)
1912	60.6 mm (2.4 in)
1913	69.1 mm (2.7 in)
1914	69.3 mm (2.7 in)
1915	104.1 mm (4.1 in)
1916	93.3 mm (3.7 in)
1917	91.9 mm (3.6 in)
1918	86.4 mm (3.4 in)
1919	83.1 mm (3.3 in)
1920	140.7 mm (5.5 in)
1921	104.9 mm (4.1 in)
1922	136.5 mm (5.4 in)
1923	118.1 mm (4.6 in)
1924	59.7 mm (2.4 in)
1925	149.9 mm (5.9 in)
1926	65.8 mm (2.6 in)
1927	128.0 mm (5.0 in)
1928	71.5 mm (2.8 in)
1929	54.1 mm (2.1 in)
1930	64.3 mm (2.5 in)
1931	78.3 mm (3.1 in)
1932	98.6 mm (3.9 in)
1933	89.4 mm (3.5 in)
1934	66.3 mm (2.6 in)
1935	73.9 mm (2.9 in)
1936	105.3 mm (4.1 in)
1937	76.8 mm (3.0 in)
1938	330.3 mm (13.0 in)
1939	82.7 mm (3.3 in)
1940	78.0 mm (3.1 in)
1941	72.4 mm (2.9 in)
1942	78.8 mm (3.1 in)
1943	82.1 mm (3.2 in)
1944	160.8 mm (6.3 in)
1945	69.5 mm (2.7 in)
1946	85.1 mm (3.4 in)
1947	106.7 mm (4.2 in)
1948	74.0 mm (2.9 in)
1949	52.1 mm (2.1 in)
1950	94.4 mm (3.7 in)
1951	78.2 mm (3.1 in)
1952	106.2 mm (4.2 in)
1953	102.1 mm (4.0 in)
1954	89.8 mm (3.5 in)
1955	118.9 mm (4.7 in)
1956	102.8 mm (4.0 in)
1957	89.3 mm (3.5 in)
1958	71.7 mm (2.8 in)
1959	102.4 mm (4.0 in)
1960	172.3 mm (6.8 in)
1961	65.5 mm (2.6 in)
1962	91.0 mm (3.6 in)
1963	39.1 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Winchendon, 1893 to 1963. The record is 42 days in 1924, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Winchendon by year
Year	Longest dry spell (CDD)
1893	12 days
1894	17 days
1895	21 days
1896	22 days
1897	15 days
1898	10 days
1899	11 days
1900	12 days
1901	14 days
1902	14 days
1903	17 days
1904	17 days
1905	12 days
1906	14 days
1907	13 days
1908	33 days
1909	14 days
1910	22 days
1911	15 days
1912	24 days
1913	14 days
1914	20 days
1915	19 days
1916	12 days
1917	22 days
1918	19 days
1919	20 days
1920	24 days
1921	19 days
1922	20 days
1923	13 days
1924	42 days
1925	12 days
1926	13 days
1927	17 days
1928	12 days
1929	13 days
1930	17 days
1931	14 days
1932	19 days
1933	8 days
1934	15 days
1935	20 days
1936	15 days
1937	13 days
1938	15 days
1939	25 days
1940	17 days
1941	19 days
1942	18 days
1943	19 days
1944	18 days
1945	14 days
1946	18 days
1947	18 days
1948	15 days
1949	23 days
1950	17 days
1951	13 days
1952	25 days
1953	32 days
1954	12 days
1955	25 days
1956	15 days
1957	19 days
1958	21 days
1959	11 days
1960	17 days
1961	17 days
1962	12 days
1963	30 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

65 years, 1894 to 1962

A day with at least 62.9 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 144.7 mm (5.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Winchendon: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	62.9 mm (2.5 in)
5 years	83.3 mm (3.3 in)
10 years	97.4 mm (3.8 in)
25 years	115.9 mm (4.6 in)
50 years	130.1 mm (5.1 in)
100 years	144.7 mm (5.7 in)	Longer than the 65 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, 65 years of values from 1894 to 1962.

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: 199.4 mm (7.9 in) in 1938; 101.1 mm (4.0 in) in 1925; 99.3 mm (3.9 in) in 1894.

Download the Data

Data for Winchendon standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Winchendon 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 2026-10-14 (14 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).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a