Mays Mill Weather Records (USC00435029)

Record envelope, standing records and threshold days for Mays Mill (USC00435029), Vermont, United States, with 46 years of record.

Key Facts for Mays Mill

Mays Mill (USC00435029) is a weather station in Vermont, United States at 42.75 latitude and -72.73 longitude, 253 m (830 ft) above sea level.
The station reports from 1930 to 1975, 46 years of record.
490 records set at Mays Mill still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Mays Mill set a daily record precipitation of 35.6 mm (1.4 in) on 25 February 1975.

About the Station

Location: Vermont, United States, 42.75 latitude, -72.73 longitude.
Elevation: 253 m (830 ft).
Period of record: 1930 to 1975, 46 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 Mays Mill. 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 Mays Mill, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	-2.2 C (28.0 F)	n/a	n/a	n/a
Feb	4.4 C (39.9 F)	n/a	n/a	n/a
Mar	5.6 C (42.1 F)	n/a	n/a	n/a
Apr	15.0 C (59.0 F)	n/a	n/a	n/a
May	15.0 C (59.0 F)	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	21.1 C (70.0 F)	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	15.6 C (60.1 F)	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	1.7 C (35.1 F)	n/a	n/a	n/a

Which Years Hold Standing Records

490 standing records

490 records at Mays Mill still stand. 1948 holds the most, with 210.

Wettest Day of Each Month

Jul: 115.8 mm (4.6 in)

The wettest day on record for each calendar month at Mays Mill. The most was 115.8 mm (4.6 in) on 7 July 1935.

Record daily precipitation for each month at Mays Mill
Month	Record daily precipitation (mm)	Date
Jan	54.6 mm (2.1 in)	6 January 1949
Feb	94.7 mm (3.7 in)	8 February 1941
Mar	76.7 mm (3.0 in)	9 March 1931
Apr	77.5 mm (3.1 in)	25 April 1968
May	77.0 mm (3.0 in)	15 May 1937
Jun	71.1 mm (2.8 in)	1 June 1972
Jul	115.8 mm (4.6 in)	7 July 1935
Aug	84.1 mm (3.3 in)	19 August 1955
Sep	88.4 mm (3.5 in)	22 September 1938
Oct	115.8 mm (4.6 in)	15 October 1955
Nov	92.7 mm (3.6 in)	14 November 1937
Dec	84.6 mm (3.3 in)	31 December 1948

Period of Record Coverage

1948 to 1973

8 years of record at Mays Mill, 1948 to 1973. 8 years have data for under 90 percent of days and are left out of rankings: 1948, 1965, 1966, 1968, 1970, 1971, 1972, 1973.

Latest Records

Latest records at Mays Mill
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 February 1975	Mays Mill, US	daily rain	35.6 mm (1.4 in)	22.9 mm (0.9 in)	12 years	27 of 100 (Routine)
6 February 1975	Mays Mill, US	daily rain	25.4 mm (1.0 in)	4.8 mm (0.19 in)	32 years	17 of 100 (Routine)
6 February 1975	Mays Mill, US	daily snowfall (Tie)	20.3 cm (8.0 in)	tie	32 years	3 of 100 (Routine)
30 January 1975	Mays Mill, US	daily rain	19.1 mm (0.8 in)	1.3 mm (0.05 in)	43 years	17 of 100 (Routine)
26 January 1975	Mays Mill, US	daily rain	31.8 mm (1.3 in)	7.7 mm (0.30 in)	16 years	17 of 100 (Routine)
17 December 1974	Mays Mill, US	daily rain	41.7 mm (1.6 in)	11.5 mm (0.5 in)	33 years	23 of 100 (Routine)
30 August 1974	Mays Mill, US	daily rain	20.3 mm (0.8 in)	3.5 mm (0.14 in)	43 years	18 of 100 (Routine)
6 July 1974	Mays Mill, US	daily rain	26.7 mm (1.1 in)	4.3 mm (0.17 in)	25 years	14 of 100 (Routine)
17 June 1974	Mays Mill, US	daily rain	46.2 mm (1.8 in)	13.2 mm (0.5 in)	35 years	26 of 100 (Routine)
25 May 1974	Mays Mill, US	daily rain	18.3 mm (0.7 in)	1.5 mm (0.06 in)	7 years	7 of 100 (Routine)
13 May 1974	Mays Mill, US	daily rain	34.5 mm (1.4 in)	18.5 mm (0.7 in)	28 years	29 of 100 (Routine)
10 April 1974	Mays Mill, US	daily snowfall	20.3 cm (8.0 in)	17.8 cm (7.0 in)	12 years	30 of 100 (Routine)
10 April 1974	Mays Mill, US	daily rain	16.3 mm (0.6 in)	6.1 mm (0.24 in)	0 years	9 of 100 (Routine)
9 April 1974	Mays Mill, US	daily snowfall (Tie)	15.2 cm (6.0 in)	tie	16 years	2 of 100 (Routine)
31 March 1974	Mays Mill, US	daily snowfall	2.5 cm (1.0 in)	0.5 cm (0.2 in)	31 years	13 of 100 (Routine)
22 March 1974	Mays Mill, US	daily rain	40.4 mm (1.6 in)	4.3 mm (0.17 in)	32 years	16 of 100 (Routine)
17 March 1974	Mays Mill, US	daily rain	55.4 mm (2.2 in)	15.8 mm (0.6 in)	32 years	27 of 100 (Routine)
23 February 1974	Mays Mill, US	daily rain	27.2 mm (1.1 in)	4.1 mm (0.16 in)	24 years	14 of 100 (Routine)
10 January 1974	Mays Mill, US	daily snowfall	27.9 cm (11.0 in)	10.1 cm (4.0 in)	40 years	31 of 100 (Routine)
22 December 1973	Mays Mill, US	daily rain	46.2 mm (1.8 in)	28.4 mm (1.1 in)	12 years	31 of 100 (Routine)

Extremes by Year

1930 to 1975

Yearly extremes at Mays Mill: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	21.1 C (70.0 F)	1968	11.7 C (53.0 F)	8
Wettest day (Rx1day)	115.8 mm (4.6 in)	1935	67.4 mm (2.7 in)	46
Wettest five days (Rx5day)	294.9 mm (11.6 in)	1955	94.3 mm (3.7 in)	46
Longest dry spell (CDD)	28 days	1947	16 days	46

Hottest day (TXx)

The hottest day of the year at Mays Mill, 1930 to 1975. The record is 21.1 C (70.0 F) in 1968, marked on the chart; the median year is 11.7 C (53.0 F).

Hottest day (TXx) at Mays Mill by year
Year	Hottest day (TXx)
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
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	15.0 C (59.0 F)
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	2.2 C (36.0 F)
1966	8.3 C (46.9 F)
1967	n/a
1968	21.1 C (70.0 F)
1969	n/a
1970	1.7 C (35.1 F)
1971	15.6 C (60.1 F)
1972	4.4 C (39.9 F)
1973	21.1 C (70.0 F)
1974	n/a
1975	n/a

Wettest day (Rx1day)

The wettest day of the year at Mays Mill, 1930 to 1975. The record is 115.8 mm (4.6 in) in 1935, marked on the chart; the median year is 67.4 mm (2.7 in).

Wettest day (Rx1day) at Mays Mill by year
Year	Wettest day (Rx1day)
1930	45.7 mm (1.8 in)
1931	76.7 mm (3.0 in)
1932	63.0 mm (2.5 in)
1933	52.3 mm (2.1 in)
1934	80.3 mm (3.2 in)
1935	115.8 mm (4.6 in)
1936	66.5 mm (2.6 in)
1937	92.7 mm (3.6 in)
1938	88.4 mm (3.5 in)
1939	51.6 mm (2.0 in)
1940	48.5 mm (1.9 in)
1941	94.7 mm (3.7 in)
1942	46.0 mm (1.8 in)
1943	80.5 mm (3.2 in)
1944	72.4 mm (2.9 in)
1945	68.6 mm (2.7 in)
1946	55.4 mm (2.2 in)
1947	66.0 mm (2.6 in)
1948	84.6 mm (3.3 in)
1949	56.1 mm (2.2 in)
1950	64.8 mm (2.6 in)
1951	73.7 mm (2.9 in)
1952	74.9 mm (2.9 in)
1953	45.2 mm (1.8 in)
1954	79.5 mm (3.1 in)
1955	115.8 mm (4.6 in)
1956	46.7 mm (1.8 in)
1957	42.7 mm (1.7 in)
1958	57.2 mm (2.3 in)
1959	74.9 mm (2.9 in)
1960	88.4 mm (3.5 in)
1961	46.2 mm (1.8 in)
1962	81.0 mm (3.2 in)
1963	47.5 mm (1.9 in)
1964	45.7 mm (1.8 in)
1965	48.3 mm (1.9 in)
1966	68.3 mm (2.7 in)
1967	52.6 mm (2.1 in)
1968	77.5 mm (3.1 in)
1969	101.1 mm (4.0 in)
1970	64.3 mm (2.5 in)
1971	73.7 mm (2.9 in)
1972	71.1 mm (2.8 in)
1973	83.8 mm (3.3 in)
1974	55.4 mm (2.2 in)
1975	35.6 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mays Mill, 1930 to 1975. The record is 294.9 mm (11.6 in) in 1955, marked on the chart; the median year is 94.3 mm (3.7 in).

Wettest five days (Rx5day) at Mays Mill by year
Year	Wettest five days (Rx5day)
1930	83.3 mm (3.3 in)
1931	103.7 mm (4.1 in)
1932	87.6 mm (3.4 in)
1933	119.1 mm (4.7 in)
1934	93.0 mm (3.7 in)
1935	145.7 mm (5.7 in)
1936	126.8 mm (5.0 in)
1937	132.2 mm (5.2 in)
1938	217.7 mm (8.6 in)
1939	99.1 mm (3.9 in)
1940	73.7 mm (2.9 in)
1941	95.5 mm (3.8 in)
1942	87.4 mm (3.4 in)
1943	90.7 mm (3.6 in)
1944	127.8 mm (5.0 in)
1945	88.5 mm (3.5 in)
1946	82.8 mm (3.3 in)
1947	127.2 mm (5.0 in)
1948	124.5 mm (4.9 in)
1949	164.4 mm (6.5 in)
1950	80.8 mm (3.2 in)
1951	102.1 mm (4.0 in)
1952	110.7 mm (4.4 in)
1953	120.1 mm (4.7 in)
1954	108.0 mm (4.3 in)
1955	294.9 mm (11.6 in)
1956	84.9 mm (3.3 in)
1957	62.8 mm (2.5 in)
1958	71.4 mm (2.8 in)
1959	142.0 mm (5.6 in)
1960	149.4 mm (5.9 in)
1961	65.0 mm (2.6 in)
1962	105.4 mm (4.1 in)
1963	73.7 mm (2.9 in)
1964	67.1 mm (2.6 in)
1965	68.9 mm (2.7 in)
1966	80.2 mm (3.2 in)
1967	74.3 mm (2.9 in)
1968	84.1 mm (3.3 in)
1969	144.3 mm (5.7 in)
1970	85.7 mm (3.4 in)
1971	146.1 mm (5.8 in)
1972	91.0 mm (3.6 in)
1973	146.8 mm (5.8 in)
1974	63.3 mm (2.5 in)
1975	51.3 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mays Mill, 1930 to 1975. The record is 28 days in 1947, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Mays Mill by year
Year	Longest dry spell (CDD)
1930	18 days
1931	15 days
1932	17 days
1933	9 days
1934	15 days
1935	22 days
1936	22 days
1937	9 days
1938	16 days
1939	20 days
1940	22 days
1941	20 days
1942	20 days
1943	15 days
1944	16 days
1945	8 days
1946	13 days
1947	28 days
1948	15 days
1949	19 days
1950	16 days
1951	16 days
1952	15 days
1953	25 days
1954	13 days
1955	14 days
1956	17 days
1957	16 days
1958	14 days
1959	10 days
1960	17 days
1961	15 days
1962	11 days
1963	23 days
1964	21 days
1965	18 days
1966	17 days
1967	12 days
1968	16 days
1969	15 days
1970	14 days
1971	13 days
1972	16 days
1973	15 days
1974	12 days
1975	6 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

43 years, 1931 to 1974

A day with at least 66.9 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 123.9 mm (4.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Mays Mill: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	66.9 mm (2.6 in)
5 years	84.2 mm (3.3 in)
10 years	94.8 mm (3.7 in)
25 years	107.3 mm (4.2 in)
50 years	115.9 mm (4.6 in)	Longer than the 43 years of record
100 years	123.9 mm (4.9 in)	Longer than the 43 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, 43 years of values from 1931 to 1974.

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: 115.8 mm (4.6 in) in 1935; 115.8 mm (4.6 in) in 1955; 101.1 mm (4.0 in) in 1969.

Download the Data

Data for Mays Mill standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mays Mill 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 2026-10-15 (15 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).