Record envelope, standing records and threshold days for Middlesex (USC00435132), Vermont, United States, with 33 years of record.
Key Facts for Middlesex
Middlesex (USC00435132) is a weather station in Vermont, United States at 44.30 latitude and -72.68 longitude, 140 m (459 ft) above sea level.
The station reports from 1936 to 1968, 33 years of record.
1,464 records set at Middlesex still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Middlesex tied a daily record low maximum temperature of -14.4 C (6.1 F) on 28 December 1968.
About the Station
Location: Vermont, United States, 44.30 latitude, -72.68 longitude.
Elevation: 140 m (459 ft).
Period of record: 1936 to 1968, 33 years.
Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
0 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 Middlesex. 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 Middlesex, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-37.8 C (-36.0 F)
n/a
n/a
Feb
17.8 C (64.0 F)
-42.2 C (-44.0 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-33.3 C (-27.9 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-17.2 C (1.0 F)
n/a
n/a
May
35.0 C (95.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
35.6 C (96.1 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
37.2 C (99.0 F)
3.3 C (37.9 F)
n/a
n/a
Aug
35.6 C (96.1 F)
-3.3 C (26.1 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
25.0 C (77.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Middlesex still stand. 1943 holds the most, with 73.
Standing records at Middlesex by the year they were set
Year set
Standing records
1936
10
1937
46
1938
53
1939
62
1940
55
1941
41
1942
45
1943
73
1944
48
1945
50
1946
62
1947
7
1948
47
1949
65
1950
48
1951
37
1952
29
1953
56
1954
46
1955
43
1956
51
1957
46
1958
34
1959
54
1960
29
1961
36
1962
35
1963
42
1964
43
1965
40
1966
36
1967
47
1968
48
Wettest Day of Each Month
Sep: 72.9 mm (2.9 in)
The wettest day on record for each calendar month at Middlesex. The most was 72.9 mm (2.9 in) on 19 September 1945.
Record daily precipitation for each month at Middlesex
Month
Record daily precipitation (mm)
Date
Jan
26.7 mm (1.1 in)
21 January 1964
Feb
43.9 mm (1.7 in)
17 February 1954
Mar
30.2 mm (1.2 in)
13 March 1962
Apr
50.8 mm (2.0 in)
25 April 1968
May
55.1 mm (2.2 in)
15 May 1937
Jun
71.9 mm (2.8 in)
2 June 1952
Jul
70.4 mm (2.8 in)
28 July 1949
Aug
60.5 mm (2.4 in)
3 August 1946
Sep
72.9 mm (2.9 in)
19 September 1945
Oct
49.5 mm (1.9 in)
7 October 1962
Nov
55.9 mm (2.2 in)
14 November 1937
Dec
57.7 mm (2.3 in)
5 December 1950
Period of Record Coverage
1936 to 1968
Complete yearUnder 90 percent of days
33 years of record at Middlesex, 1936 to 1968. 4 years have data for under 90 percent of days and are left out of rankings: 1936, 1941, 1947, 1951.
Cooler than the station meanWarmer than the station mean
One stripe for each of 22 complete years at Middlesex, 1937 to 1968. Blue stripes are years cooler than the station's own mean of 5.8 C (42.5 F); red stripes are warmer. The coolest year was 1940, at 4.4 C (39.8 F), and the warmest was 1953, at 7.7 C (45.9 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Middlesex as warming stripes, 1937 to 1968
Year
Annual mean temperature
Difference from the station mean
1937
6.3 C
+0.47 C
1939
5.2 C
-0.61 C
1940
4.4 C
-1.48 C
1942
6.0 C
+0.12 C
1944
5.2 C
-0.62 C
1945
5.7 C
-0.11 C
1946
6.3 C
+0.49 C
1949
7.5 C
+1.62 C
1950
6.0 C
+0.17 C
1953
7.7 C
+1.91 C
1954
5.9 C
+0.10 C
1956
5.3 C
-0.55 C
1959
6.3 C
+0.45 C
1960
6.1 C
+0.29 C
1961
6.1 C
+0.23 C
1962
5.0 C
-0.81 C
1963
5.2 C
-0.66 C
1964
5.9 C
+0.03 C
1965
5.4 C
-0.43 C
1966
5.8 C
-0.05 C
1967
5.6 C
-0.25 C
1968
5.5 C
-0.33 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
1936 to 1968
Yearly extremes at Middlesex: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.2 C (99.0 F)
1953
33.9 C (93.0 F)
33
Coldest night (TNn)
-42.2 C (-44.0 F)
1943
-31.7 C (-25.1 F)
33
Wettest day (Rx1day)
72.9 mm (2.9 in)
1945
47.8 mm (1.9 in)
33
Wettest five days (Rx5day)
109.6 mm (4.3 in)
1938
67.9 mm (2.7 in)
32
Longest dry spell (CDD)
24 days
1938
15 days
33
Hottest day (TXx)
The hottest day of the year at Middlesex, 1936 to 1968. The record is 37.2 C (99.0 F) in 1953, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Middlesex by year
Year
Hottest day (TXx)
1936
14.4 C (57.9 F)
1937
33.3 C (91.9 F)
1938
35.6 C (96.1 F)
1939
34.4 C (93.9 F)
1940
32.8 C (91.0 F)
1941
35.6 C (96.1 F)
1942
33.3 C (91.9 F)
1943
32.8 C (91.0 F)
1944
35.6 C (96.1 F)
1945
32.8 C (91.0 F)
1946
34.4 C (93.9 F)
1947
21.1 C (70.0 F)
1948
33.9 C (93.0 F)
1949
35.0 C (95.0 F)
1950
32.8 C (91.0 F)
1951
31.1 C (88.0 F)
1952
36.1 C (97.0 F)
1953
37.2 C (99.0 F)
1954
34.4 C (93.9 F)
1955
35.6 C (96.1 F)
1956
34.4 C (93.9 F)
1957
33.9 C (93.0 F)
1958
32.2 C (90.0 F)
1959
35.0 C (95.0 F)
1960
32.8 C (91.0 F)
1961
33.9 C (93.0 F)
1962
32.8 C (91.0 F)
1963
33.9 C (93.0 F)
1964
33.3 C (91.9 F)
1965
33.9 C (93.0 F)
1966
34.4 C (93.9 F)
1967
32.2 C (90.0 F)
1968
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Middlesex, 1936 to 1968. The record is -42.2 C (-44.0 F) in 1943, marked on the chart; the median year is -31.7 C (-25.1 F).
Coldest night (TNn) at Middlesex by year
Year
Coldest night (TNn)
1936
-26.1 C (-15.0 F)
1937
-22.8 C (-9.0 F)
1938
-33.3 C (-27.9 F)
1939
-33.9 C (-29.0 F)
1940
-34.4 C (-29.9 F)
1941
-30.6 C (-23.1 F)
1942
-34.4 C (-29.9 F)
1943
-42.2 C (-44.0 F)
1944
-28.9 C (-20.0 F)
1945
-28.9 C (-20.0 F)
1946
-31.7 C (-25.1 F)
1947
-28.3 C (-18.9 F)
1948
-33.3 C (-27.9 F)
1949
-29.4 C (-20.9 F)
1950
-31.7 C (-25.1 F)
1951
-32.8 C (-27.0 F)
1952
-30.6 C (-23.1 F)
1953
-26.1 C (-15.0 F)
1954
-33.9 C (-29.0 F)
1955
-35.0 C (-31.0 F)
1956
-29.4 C (-20.9 F)
1957
-37.8 C (-36.0 F)
1958
-32.8 C (-27.0 F)
1959
-33.3 C (-27.9 F)
1960
-31.1 C (-24.0 F)
1961
-31.1 C (-24.0 F)
1962
-33.3 C (-27.9 F)
1963
-31.7 C (-25.1 F)
1964
-28.9 C (-20.0 F)
1965
-32.8 C (-27.0 F)
1966
-30.0 C (-22.0 F)
1967
-34.4 C (-29.9 F)
1968
-33.9 C (-29.0 F)
Wettest day (Rx1day)
The wettest day of the year at Middlesex, 1936 to 1968. The record is 72.9 mm (2.9 in) in 1945, marked on the chart; the median year is 47.8 mm (1.9 in).
Wettest day (Rx1day) at Middlesex by year
Year
Wettest day (Rx1day)
1936
33.3 mm (1.3 in)
1937
55.9 mm (2.2 in)
1938
55.9 mm (2.2 in)
1939
34.3 mm (1.4 in)
1940
50.0 mm (2.0 in)
1941
35.6 mm (1.4 in)
1942
47.0 mm (1.9 in)
1943
48.0 mm (1.9 in)
1944
31.8 mm (1.3 in)
1945
72.9 mm (2.9 in)
1946
60.5 mm (2.4 in)
1947
59.4 mm (2.3 in)
1948
48.8 mm (1.9 in)
1949
70.4 mm (2.8 in)
1950
57.7 mm (2.3 in)
1951
41.7 mm (1.6 in)
1952
71.9 mm (2.8 in)
1953
60.2 mm (2.4 in)
1954
43.9 mm (1.7 in)
1955
50.8 mm (2.0 in)
1956
41.9 mm (1.6 in)
1957
33.8 mm (1.3 in)
1958
37.1 mm (1.5 in)
1959
44.5 mm (1.8 in)
1960
56.9 mm (2.2 in)
1961
47.8 mm (1.9 in)
1962
49.5 mm (1.9 in)
1963
42.4 mm (1.7 in)
1964
47.0 mm (1.9 in)
1965
35.1 mm (1.4 in)
1966
38.4 mm (1.5 in)
1967
46.2 mm (1.8 in)
1968
50.8 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Middlesex, 1936 to 1968. The record is 109.6 mm (4.3 in) in 1938, marked on the chart; the median year is 67.9 mm (2.7 in).
Wettest five days (Rx5day) at Middlesex by year
Year
Wettest five days (Rx5day)
1936
n/a
1937
83.3 mm (3.3 in)
1938
109.6 mm (4.3 in)
1939
44.0 mm (1.7 in)
1940
58.5 mm (2.3 in)
1941
46.2 mm (1.8 in)
1942
64.6 mm (2.5 in)
1943
74.7 mm (2.9 in)
1944
57.6 mm (2.3 in)
1945
103.6 mm (4.1 in)
1946
70.1 mm (2.8 in)
1947
75.6 mm (3.0 in)
1948
67.8 mm (2.7 in)
1949
90.0 mm (3.5 in)
1950
67.9 mm (2.7 in)
1951
54.9 mm (2.2 in)
1952
82.1 mm (3.2 in)
1953
60.5 mm (2.4 in)
1954
67.2 mm (2.6 in)
1955
99.3 mm (3.9 in)
1956
93.3 mm (3.7 in)
1957
60.3 mm (2.4 in)
1958
68.8 mm (2.7 in)
1959
72.9 mm (2.9 in)
1960
84.6 mm (3.3 in)
1961
48.8 mm (1.9 in)
1962
86.6 mm (3.4 in)
1963
47.8 mm (1.9 in)
1964
81.7 mm (3.2 in)
1965
55.7 mm (2.2 in)
1966
45.7 mm (1.8 in)
1967
63.7 mm (2.5 in)
1968
59.0 mm (2.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Middlesex, 1936 to 1968. The record is 24 days in 1938, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Middlesex by year
Year
Longest dry spell (CDD)
1936
1 day
1937
11 days
1938
24 days
1939
10 days
1940
10 days
1941
19 days
1942
12 days
1943
15 days
1944
13 days
1945
15 days
1946
10 days
1947
16 days
1948
13 days
1949
20 days
1950
14 days
1951
16 days
1952
15 days
1953
15 days
1954
13 days
1955
15 days
1956
23 days
1957
16 days
1958
11 days
1959
13 days
1960
13 days
1961
16 days
1962
16 days
1963
19 days
1964
15 days
1965
21 days
1966
13 days
1967
11 days
1968
11 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
22 years with a frost
Across 22 years with a frost, the median last spring frost at Middlesex falls on 21 May and the median first autumn frost on 25 September, which leaves a median of 124 days between them.
Frost dates and growing season at Middlesex
Measure
Median, all years
Earliest period
Recent period (1937 to 1968)
Recent against earliest
Fitted trend
Last spring frost
21 May
n/a
21 May
n/a
n/a
First autumn frost
25 September
n/a
25 September
n/a
n/a
Growing days
124 days
n/a
124 days
n/a
n/a
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 Middlesex standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Middlesex 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.