Record envelope, standing records and threshold days for Mt Mansfield (USC00435416), Vermont, United States, with 73 years of record.
Key Facts for Mt Mansfield
Mt Mansfield (USC00435416) is a weather station in Vermont, United States at 44.52 latitude and -72.82 longitude, 1,204 m (3,950 ft) above sea level.
The station reports from 1954 to 2026, 73 years of record.
1,464 records set at Mt Mansfield still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mt Mansfield tied a daily record high minimum temperature of 15.6 C (60.1 F) on 8 August 2026.
About the Station
Location: Vermont, United States, 44.52 latitude, -72.82 longitude.
Elevation: 1,204 m (3,950 ft).
Period of record: 1954 to 2026, 73 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
4 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Mt Mansfield. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Mt Mansfield, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.7 C (53.1 F)
-39.4 C (-38.9 F)
2.2 C (36.0 F)
-30.0 C (-22.0 F)
Feb
13.3 C (55.9 F)
-37.8 C (-36.0 F)
-0.6 C (30.9 F)
-28.3 C (-18.9 F)
Mar
18.3 C (64.9 F)
-35.0 C (-31.0 F)
11.1 C (52.0 F)
-22.8 C (-9.0 F)
Apr
23.3 C (73.9 F)
-25.0 C (-13.0 F)
15.0 C (59.0 F)
-13.3 C (8.1 F)
May
29.4 C (84.9 F)
-15.0 C (5.0 F)
22.2 C (72.0 F)
-3.9 C (25.0 F)
Jun
28.9 C (84.0 F)
-6.7 C (19.9 F)
23.9 C (75.0 F)
2.8 C (37.0 F)
Jul
28.9 C (84.0 F)
-1.1 C (30.0 F)
26.1 C (79.0 F)
3.9 C (39.0 F)
Aug
31.1 C (88.0 F)
-3.9 C (25.0 F)
24.4 C (75.9 F)
6.1 C (43.0 F)
Sep
26.1 C (79.0 F)
-8.9 C (16.0 F)
17.8 C (64.0 F)
1.7 C (35.1 F)
Oct
24.4 C (75.9 F)
-15.0 C (5.0 F)
14.4 C (57.9 F)
-3.3 C (26.1 F)
Nov
17.2 C (63.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-38.9 C (-38.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mt Mansfield still stand. 1979 holds the most, with 46.
Standing records at Mt Mansfield by the year they were set
Year set
Standing records
1954
1
1955
24
1956
29
1957
27
1958
20
1959
25
1960
13
1961
18
1962
26
1963
36
1964
34
1965
29
1966
21
1967
23
1968
33
1969
18
1970
16
1971
17
1972
9
1973
23
1974
18
1975
8
1976
27
1977
20
1978
15
1979
46
1980
16
1981
23
1982
27
1983
12
1984
26
1985
8
1986
20
1987
24
1988
22
1989
27
1990
29
1991
20
1992
20
1993
23
1994
22
1995
24
1996
20
1997
10
1998
17
1999
16
2000
15
2001
14
2002
27
2003
12
2004
13
2005
23
2006
8
2007
20
2008
17
2009
12
2010
17
2011
7
2012
18
2013
12
2014
8
2015
19
2016
12
2017
24
2018
39
2019
15
2020
41
2021
43
2022
29
2023
20
2024
2
2025
11
2026
4
All-Time Record Progression
11 new records
11 all-time records were set at Mt Mansfield between 8 July 1988 and 12 August 2025. Each dot is a new record.
When Mt Mansfield set new all-time records
Date
Kind
Detail
1988-07-08
Record high maximum temperature
Record high maximum temperature 27.8 C (82.0 F)
1995-02-06
Record low maximum temperature
Record low maximum temperature -30.0 C (-22.0 F)
1995-08-04
Record daily precipitation
Record daily precipitation 153.7 mm (6.1 in)
1999-06-07
Record high maximum temperature
Record high maximum temperature 28.9 C (84.0 F)
1999-09-17
Record daily precipitation
Record daily precipitation 252.0 mm (9.9 in)
2004-01-15
Record low maximum temperature
Record low maximum temperature -31.1 C (-24.0 F)
2017-03-15
Record daily snowfall
Record daily snowfall 71.1 cm (28.0 in)
2018-07-02
Record high minimum temperature
Record high minimum temperature 21.1 C (70.0 F)
2020-05-27
Record high maximum temperature
Record high maximum temperature 29.4 C (84.9 F)
2025-08-11
Record high maximum temperature
Record high maximum temperature 30.0 C (86.0 F)
2025-08-12
Record high maximum temperature
Record high maximum temperature 31.1 C (88.0 F)
Wettest Day of Each Month
Sep: 252.0 mm (9.9 in)
The wettest day on record for each calendar month at Mt Mansfield. The most was 252.0 mm (9.9 in) on 17 September 1999.
Record daily precipitation for each month at Mt Mansfield
Month
Record daily precipitation (mm)
Date
Jan
71.6 mm (2.8 in)
20 January 1973
Feb
60.2 mm (2.4 in)
24 February 2010
Mar
55.9 mm (2.2 in)
13 March 1985
Apr
81.8 mm (3.2 in)
25 April 1968
May
91.4 mm (3.6 in)
9 May 2000
Jun
103.6 mm (4.1 in)
27 June 2012
Jul
136.7 mm (5.4 in)
10 July 2023
Aug
153.7 mm (6.1 in)
4 August 1995
Sep
252.0 mm (9.9 in)
17 September 1999
Oct
128.3 mm (5.1 in)
1 October 2010
Nov
94.5 mm (3.7 in)
28 November 2009
Dec
93.5 mm (3.7 in)
29 December 1984
Period of Record Coverage
1954 to 2026
Complete yearUnder 90 percent of days
73 years of record at Mt Mansfield, 1954 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1954, 1955, 1959, 1964, 1974, 1975, 2023, 2024 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 59 complete years at Mt Mansfield, 1957 to 2022. Blue stripes are years cooler than the station's own mean of 1.7 C (35.1 F); red stripes are warmer. The coolest year was 1993, at 0.1 C (32.1 F), and the warmest was 2021, at 4.9 C (40.8 F). The strongest colour marks a difference of 3.2 C (5.8 F).
Annual mean temperature at Mt Mansfield as warming stripes, 1957 to 2022
Year
Annual mean temperature
Difference from the station mean
1957
1.2 C
-0.52 C
1958
0.5 C
-1.27 C
1960
1.2 C
-0.54 C
1962
0.8 C
-0.98 C
1963
0.6 C
-1.18 C
1966
1.1 C
-0.61 C
1967
0.8 C
-0.95 C
1968
1.0 C
-0.71 C
1969
1.1 C
-0.59 C
1970
1.1 C
-0.61 C
1971
1.3 C
-0.41 C
1972
0.4 C
-1.32 C
1973
2.3 C
+0.57 C
1977
1.2 C
-0.55 C
1978
0.3 C
-1.40 C
1979
1.9 C
+0.15 C
1980
0.6 C
-1.12 C
1981
1.5 C
-0.25 C
1982
1.4 C
-0.35 C
1983
1.8 C
+0.07 C
1984
2.1 C
+0.39 C
1985
1.3 C
-0.44 C
1986
1.7 C
0.00 C
1987
2.1 C
+0.37 C
1988
1.5 C
-0.21 C
1989
0.7 C
-1.02 C
1990
2.3 C
+0.56 C
1991
2.1 C
+0.34 C
1992
0.6 C
-1.17 C
1993
0.1 C
-1.65 C
1994
0.6 C
-1.10 C
1995
1.3 C
-0.44 C
1996
0.5 C
-1.24 C
1997
0.4 C
-1.32 C
1998
3.2 C
+1.47 C
1999
2.7 C
+0.93 C
2000
1.2 C
-0.50 C
2001
2.5 C
+0.73 C
2002
1.9 C
+0.12 C
2003
1.4 C
-0.36 C
2004
1.2 C
-0.49 C
2005
2.2 C
+0.46 C
2006
2.7 C
+0.97 C
2007
1.5 C
-0.19 C
2008
1.9 C
+0.17 C
2009
1.4 C
-0.30 C
2010
2.7 C
+0.96 C
2011
2.8 C
+1.04 C
2012
3.6 C
+1.89 C
2013
1.6 C
-0.10 C
2014
1.3 C
-0.48 C
2015
1.9 C
+0.13 C
2016
2.9 C
+1.20 C
2017
2.3 C
+0.56 C
2018
3.4 C
+1.70 C
2019
3.2 C
+1.49 C
2020
4.6 C
+2.87 C
2021
4.9 C
+3.18 C
2022
4.1 C
+2.33 C
The annual mean temperature here has risen by 0.4 C (0.3 to 0.5) per decade over 1957 to 2022. In Fahrenheit: 0.7 F (0.5 to 0.9) per decade. The slope is a straight line fitted to 59 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Mt Mansfield
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.4 C (0.3 to 0.5) per decade
0.7 F (0.5 to 0.9) per decade
1957 to 2022
59
Rise
Mean daily maximum
0.3 C (0.2 to 0.4) per decade
0.5 F (0.3 to 0.8) per decade
1957 to 2022
59
Rise
Mean daily minimum
0.4 C (0.3 to 0.6) per decade
0.8 F (0.6 to 1.0) per decade
1957 to 2022
59
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
1954 to 2026
Yearly extremes at Mt Mansfield: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
31.1 C (88.0 F)
2025
25.6 C (78.1 F)
73
Coldest night (TNn)
-39.4 C (-38.9 F)
1957
-32.2 C (-26.0 F)
73
Wettest day (Rx1day)
252.0 mm (9.9 in)
1999
66.5 mm (2.6 in)
73
Wettest five days (Rx5day)
312.2 mm (12.3 in)
1999
118.6 mm (4.7 in)
73
Longest dry spell (CDD)
25 days
1977
11 days
73
Hottest day (TXx)
The hottest day of the year at Mt Mansfield, 1954 to 2026. The record is 31.1 C (88.0 F) in 2025, marked on the chart; the median year is 25.6 C (78.1 F).
Hottest day (TXx) at Mt Mansfield by year
Year
Hottest day (TXx)
1954
12.2 C (54.0 F)
1955
26.7 C (80.1 F)
1956
26.1 C (79.0 F)
1957
25.6 C (78.1 F)
1958
25.6 C (78.1 F)
1959
26.7 C (80.1 F)
1960
25.6 C (78.1 F)
1961
26.1 C (79.0 F)
1962
24.4 C (75.9 F)
1963
26.1 C (79.0 F)
1964
25.0 C (77.0 F)
1965
26.1 C (79.0 F)
1966
26.1 C (79.0 F)
1967
23.9 C (75.0 F)
1968
25.6 C (78.1 F)
1969
24.4 C (75.9 F)
1970
24.4 C (75.9 F)
1971
24.4 C (75.9 F)
1972
24.4 C (75.9 F)
1973
25.6 C (78.1 F)
1974
26.1 C (79.0 F)
1975
24.4 C (75.9 F)
1976
23.9 C (75.0 F)
1977
27.2 C (81.0 F)
1978
25.0 C (77.0 F)
1979
25.6 C (78.1 F)
1980
23.9 C (75.0 F)
1981
23.3 C (73.9 F)
1982
25.0 C (77.0 F)
1983
26.7 C (80.1 F)
1984
24.4 C (75.9 F)
1985
23.3 C (73.9 F)
1986
23.3 C (73.9 F)
1987
26.1 C (79.0 F)
1988
27.8 C (82.0 F)
1989
26.1 C (79.0 F)
1990
23.9 C (75.0 F)
1991
24.4 C (75.9 F)
1992
22.2 C (72.0 F)
1993
23.3 C (73.9 F)
1994
25.6 C (78.1 F)
1995
26.1 C (79.0 F)
1996
21.1 C (70.0 F)
1997
25.6 C (78.1 F)
1998
25.6 C (78.1 F)
1999
28.9 C (84.0 F)
2000
22.8 C (73.0 F)
2001
26.1 C (79.0 F)
2002
26.1 C (79.0 F)
2003
26.1 C (79.0 F)
2004
23.3 C (73.9 F)
2005
26.7 C (80.1 F)
2006
25.6 C (78.1 F)
2007
25.0 C (77.0 F)
2008
26.1 C (79.0 F)
2009
23.3 C (73.9 F)
2010
27.2 C (81.0 F)
2011
25.0 C (77.0 F)
2012
26.1 C (79.0 F)
2013
24.4 C (75.9 F)
2014
25.0 C (77.0 F)
2015
24.4 C (75.9 F)
2016
24.4 C (75.9 F)
2017
24.4 C (75.9 F)
2018
28.9 C (84.0 F)
2019
27.2 C (81.0 F)
2020
29.4 C (84.9 F)
2021
27.8 C (82.0 F)
2022
28.3 C (82.9 F)
2023
25.0 C (77.0 F)
2024
15.0 C (59.0 F)
2025
31.1 C (88.0 F)
2026
26.1 C (79.0 F)
Coldest night (TNn)
The coldest night of the year at Mt Mansfield, 1954 to 2026. The record is -39.4 C (-38.9 F) in 1957, marked on the chart; the median year is -32.2 C (-26.0 F).
Coldest night (TNn) at Mt Mansfield by year
Year
Coldest night (TNn)
1954
-23.9 C (-11.0 F)
1955
-33.3 C (-27.9 F)
1956
-30.0 C (-22.0 F)
1957
-39.4 C (-38.9 F)
1958
-31.7 C (-25.1 F)
1959
-33.3 C (-27.9 F)
1960
-33.3 C (-27.9 F)
1961
-36.1 C (-33.0 F)
1962
-34.4 C (-29.9 F)
1963
-34.4 C (-29.9 F)
1964
-25.0 C (-13.0 F)
1965
-39.4 C (-38.9 F)
1966
-30.6 C (-23.1 F)
1967
-37.8 C (-36.0 F)
1968
-39.4 C (-38.9 F)
1969
-30.0 C (-22.0 F)
1970
-31.7 C (-25.1 F)
1971
-32.2 C (-26.0 F)
1972
-32.8 C (-27.0 F)
1973
-35.6 C (-32.1 F)
1974
-30.6 C (-23.1 F)
1975
-32.2 C (-26.0 F)
1976
-31.7 C (-25.1 F)
1977
-37.2 C (-35.0 F)
1978
-28.9 C (-20.0 F)
1979
-34.4 C (-29.9 F)
1980
-38.9 C (-38.0 F)
1981
-38.3 C (-36.9 F)
1982
-33.3 C (-27.9 F)
1983
-31.7 C (-25.1 F)
1984
-31.7 C (-25.1 F)
1985
-31.1 C (-24.0 F)
1986
-32.8 C (-27.0 F)
1987
-32.8 C (-27.0 F)
1988
-36.7 C (-34.1 F)
1989
-31.7 C (-25.1 F)
1990
-30.6 C (-23.1 F)
1991
-31.1 C (-24.0 F)
1992
-33.3 C (-27.9 F)
1993
-35.0 C (-31.0 F)
1994
-38.9 C (-38.0 F)
1995
-36.1 C (-33.0 F)
1996
-31.7 C (-25.1 F)
1997
-33.3 C (-27.9 F)
1998
-33.9 C (-29.0 F)
1999
-31.7 C (-25.1 F)
2000
-35.0 C (-31.0 F)
2001
-26.7 C (-16.1 F)
2002
-27.8 C (-18.0 F)
2003
-35.0 C (-31.0 F)
2004
-37.8 C (-36.0 F)
2005
-33.9 C (-29.0 F)
2006
-27.2 C (-17.0 F)
2007
-33.3 C (-27.9 F)
2008
-28.9 C (-20.0 F)
2009
-28.3 C (-18.9 F)
2010
-30.6 C (-23.1 F)
2011
-34.4 C (-29.9 F)
2012
-27.8 C (-18.0 F)
2013
-32.8 C (-27.0 F)
2014
-28.3 C (-18.9 F)
2015
-34.4 C (-29.9 F)
2016
-35.6 C (-32.1 F)
2017
-30.0 C (-22.0 F)
2018
-31.7 C (-25.1 F)
2019
-30.6 C (-23.1 F)
2020
-25.6 C (-14.1 F)
2021
-25.6 C (-14.1 F)
2022
-31.1 C (-24.0 F)
2023
-37.2 C (-35.0 F)
2024
-15.6 C (3.9 F)
2025
-23.3 C (-9.9 F)
2026
-30.0 C (-22.0 F)
Wettest day (Rx1day)
The wettest day of the year at Mt Mansfield, 1954 to 2026. The record is 252.0 mm (9.9 in) in 1999, marked on the chart; the median year is 66.5 mm (2.6 in).
Wettest day (Rx1day) at Mt Mansfield by year
Year
Wettest day (Rx1day)
1954
25.4 mm (1.0 in)
1955
51.3 mm (2.0 in)
1956
51.8 mm (2.0 in)
1957
57.9 mm (2.3 in)
1958
42.7 mm (1.7 in)
1959
66.5 mm (2.6 in)
1960
86.4 mm (3.4 in)
1961
61.2 mm (2.4 in)
1962
125.2 mm (4.9 in)
1963
39.4 mm (1.6 in)
1964
41.9 mm (1.6 in)
1965
50.8 mm (2.0 in)
1966
72.9 mm (2.9 in)
1967
48.8 mm (1.9 in)
1968
81.8 mm (3.2 in)
1969
81.3 mm (3.2 in)
1970
56.1 mm (2.2 in)
1971
114.3 mm (4.5 in)
1972
50.5 mm (2.0 in)
1973
74.4 mm (2.9 in)
1974
55.9 mm (2.2 in)
1975
55.1 mm (2.2 in)
1976
109.2 mm (4.3 in)
1977
101.6 mm (4.0 in)
1978
62.2 mm (2.4 in)
1979
50.8 mm (2.0 in)
1980
42.7 mm (1.7 in)
1981
102.9 mm (4.1 in)
1982
57.2 mm (2.3 in)
1983
77.0 mm (3.0 in)
1984
93.5 mm (3.7 in)
1985
71.1 mm (2.8 in)
1986
61.5 mm (2.4 in)
1987
71.4 mm (2.8 in)
1988
68.6 mm (2.7 in)
1989
90.4 mm (3.6 in)
1990
82.6 mm (3.3 in)
1991
66.3 mm (2.6 in)
1992
61.0 mm (2.4 in)
1993
54.4 mm (2.1 in)
1994
80.0 mm (3.1 in)
1995
153.7 mm (6.1 in)
1996
82.3 mm (3.2 in)
1997
88.9 mm (3.5 in)
1998
78.7 mm (3.1 in)
1999
252.0 mm (9.9 in)
2000
91.4 mm (3.6 in)
2001
134.4 mm (5.3 in)
2002
80.0 mm (3.1 in)
2003
83.8 mm (3.3 in)
2004
58.4 mm (2.3 in)
2005
56.1 mm (2.2 in)
2006
72.4 mm (2.9 in)
2007
63.5 mm (2.5 in)
2008
58.4 mm (2.3 in)
2009
94.5 mm (3.7 in)
2010
128.3 mm (5.1 in)
2011
91.9 mm (3.6 in)
2012
103.6 mm (4.1 in)
2013
83.8 mm (3.3 in)
2014
65.5 mm (2.6 in)
2015
66.3 mm (2.6 in)
2016
70.4 mm (2.8 in)
2017
64.3 mm (2.5 in)
2018
52.8 mm (2.1 in)
2019
55.6 mm (2.2 in)
2020
50.0 mm (2.0 in)
2021
44.2 mm (1.7 in)
2022
75.4 mm (3.0 in)
2023
136.7 mm (5.4 in)
2024
41.9 mm (1.6 in)
2025
46.2 mm (1.8 in)
2026
65.0 mm (2.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mt Mansfield, 1954 to 2026. The record is 312.2 mm (12.3 in) in 1999, marked on the chart; the median year is 118.6 mm (4.7 in).
Wettest five days (Rx5day) at Mt Mansfield by year
Year
Wettest five days (Rx5day)
1954
61.4 mm (2.4 in)
1955
135.7 mm (5.3 in)
1956
77.9 mm (3.1 in)
1957
126.2 mm (5.0 in)
1958
68.2 mm (2.7 in)
1959
78.1 mm (3.1 in)
1960
118.7 mm (4.7 in)
1961
79.2 mm (3.1 in)
1962
150.1 mm (5.9 in)
1963
85.6 mm (3.4 in)
1964
87.3 mm (3.4 in)
1965
90.5 mm (3.6 in)
1966
83.1 mm (3.3 in)
1967
75.1 mm (3.0 in)
1968
115.3 mm (4.5 in)
1969
125.2 mm (4.9 in)
1970
96.8 mm (3.8 in)
1971
157.8 mm (6.2 in)
1972
121.4 mm (4.8 in)
1973
133.6 mm (5.3 in)
1974
85.4 mm (3.4 in)
1975
119.2 mm (4.7 in)
1976
145.5 mm (5.7 in)
1977
167.2 mm (6.6 in)
1978
103.3 mm (4.1 in)
1979
105.9 mm (4.2 in)
1980
97.0 mm (3.8 in)
1981
190.0 mm (7.5 in)
1982
94.7 mm (3.7 in)
1983
117.7 mm (4.6 in)
1984
115.2 mm (4.5 in)
1985
122.8 mm (4.8 in)
1986
137.2 mm (5.4 in)
1987
114.6 mm (4.5 in)
1988
114.5 mm (4.5 in)
1989
124.7 mm (4.9 in)
1990
124.4 mm (4.9 in)
1991
118.6 mm (4.7 in)
1992
105.2 mm (4.1 in)
1993
104.6 mm (4.1 in)
1994
113.5 mm (4.5 in)
1995
279.4 mm (11.0 in)
1996
151.1 mm (5.9 in)
1997
112.2 mm (4.4 in)
1998
132.0 mm (5.2 in)
1999
312.2 mm (12.3 in)
2000
156.4 mm (6.2 in)
2001
173.3 mm (6.8 in)
2002
158.6 mm (6.2 in)
2003
128.0 mm (5.0 in)
2004
112.3 mm (4.4 in)
2005
172.8 mm (6.8 in)
2006
177.6 mm (7.0 in)
2007
141.0 mm (5.6 in)
2008
130.8 mm (5.1 in)
2009
129.3 mm (5.1 in)
2010
183.9 mm (7.2 in)
2011
177.7 mm (7.0 in)
2012
155.1 mm (6.1 in)
2013
221.9 mm (8.7 in)
2014
85.1 mm (3.4 in)
2015
156.0 mm (6.1 in)
2016
96.8 mm (3.8 in)
2017
125.6 mm (4.9 in)
2018
71.1 mm (2.8 in)
2019
66.1 mm (2.6 in)
2020
81.5 mm (3.2 in)
2021
81.7 mm (3.2 in)
2022
81.3 mm (3.2 in)
2023
185.1 mm (7.3 in)
2024
45.7 mm (1.8 in)
2025
93.4 mm (3.7 in)
2026
73.9 mm (2.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Mt Mansfield, 1954 to 2026. The record is 25 days in 1977, marked on the chart; the median year is 11 days.
Longest dry spell (CDD) at Mt Mansfield by year
Year
Longest dry spell (CDD)
1954
4 days
1955
9 days
1956
14 days
1957
14 days
1958
8 days
1959
19 days
1960
8 days
1961
10 days
1962
13 days
1963
11 days
1964
13 days
1965
10 days
1966
15 days
1967
12 days
1968
13 days
1969
12 days
1970
10 days
1971
12 days
1972
14 days
1973
8 days
1974
11 days
1975
10 days
1976
9 days
1977
25 days
1978
10 days
1979
12 days
1980
12 days
1981
8 days
1982
15 days
1983
9 days
1984
10 days
1985
12 days
1986
7 days
1987
12 days
1988
10 days
1989
14 days
1990
11 days
1991
11 days
1992
10 days
1993
8 days
1994
10 days
1995
17 days
1996
10 days
1997
11 days
1998
11 days
1999
16 days
2000
9 days
2001
16 days
2002
8 days
2003
11 days
2004
12 days
2005
12 days
2006
10 days
2007
15 days
2008
9 days
2009
12 days
2010
15 days
2011
7 days
2012
11 days
2013
13 days
2014
11 days
2015
12 days
2016
8 days
2017
18 days
2018
12 days
2019
7 days
2020
14 days
2021
12 days
2022
8 days
2023
16 days
2024
6 days
2025
6 days
2026
3 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
59 years with a frost
Across 59 years with a frost, the median last spring frost at Mt Mansfield falls on 1 June and the median first autumn frost on 16 September, which leaves a median of 104 days between them.
Fitted over all years, the growing season changes by +10.9 days per decade at this station.
Frost dates and growing season at Mt Mansfield
Measure
Median, all years
Earliest period
Recent period (1993 to 2022)
Recent against earliest
Fitted trend
Last spring frost
1 June
n/a
28 May
n/a
-3.2 days per decade
First autumn frost
16 September
n/a
20 September
n/a
+7.7 days per decade
Growing days
104 days
n/a
113 days
n/a
+10.9 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
62 years, 1955 to 2021
A day with at least 70.2 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 198.4 mm (7.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Mt Mansfield: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
70.2 mm (2.8 in)
5 years
94.7 mm (3.7 in)
10 years
114.3 mm (4.5 in)
25 years
143.6 mm (5.7 in)
50 years
169.2 mm (6.7 in)
100 years
198.4 mm (7.8 in)
Longer than the 62 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, 62 years of values from 1955 to 2021.
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: 252.0 mm (9.9 in) in 1999; 153.7 mm (6.1 in) in 1995; 134.4 mm (5.3 in) in 2001.
Station Changes
3 suspected
3 changes were suspected in the annual mean temperature of Mt Mansfield, at 1984, 1989 and 1998. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1984 ran 0.4 C (0.6 F) higher than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1989 ran 0.9 C (1.6 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1998 ran 0.4 C (0.7 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Mt Mansfield, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1984
+0.4
+0.6
possible
5
1989
-0.9
-1.6
likely
5
1998
+0.4
+0.7
possible
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.
Climate Twins
2008 to 2022 against 1961 to 1990
Over 2008 to 2022, Mt Mansfield had a mean temperature of 2.8 C (37.1 F) and 1,843.6 mm (72.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Pinkham Notch (United States, 128 km away), Bon Accord (Canada, 471 km away) and Riviere Verte Ouest (Canada, 284 km away).
Climate twins of Mt Mansfield: stations whose 1961 to 1990 climate is closest to its 2008 to 2022 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Mt Mansfield standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mt Mansfield 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.