Record envelope, standing records and threshold days for Monticello 3 NE (USC00155524), Kentucky, United States, with 78 years of record.
Key Facts for Monticello 3 NE
Monticello 3 NE (USC00155524) is a weather station in Kentucky, United States at 36.87 latitude and -84.83 longitude, 298 m (979 ft) above sea level.
The station reports from 1936 to 2013, 78 years of record.
1,464 records set at Monticello 3 NE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Monticello 3 NE set a daily record precipitation of 38.6 mm (1.5 in) on 18 June 2013.
About the Station
Location: Kentucky, United States, 36.87 latitude, -84.83 longitude.
Elevation: 298 m (979 ft).
Period of record: 1936 to 2013, 78 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
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 Monticello 3 NE. 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 Monticello 3 NE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.9 C (75.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Feb
27.8 C (82.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-21.1 C (-6.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-7.8 C (18.0 F)
n/a
n/a
May
33.3 C (91.9 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
40.6 C (105.1 F)
1.7 C (35.1 F)
n/a
n/a
Jul
40.0 C (104.0 F)
7.8 C (46.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
6.7 C (44.1 F)
n/a
n/a
Sep
37.8 C (100.0 F)
0.6 C (33.1 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-15.0 C (5.0 F)
n/a
n/a
Dec
25.0 C (77.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Monticello 3 NE still stand. 1963 holds the most, with 49.
Standing records at Monticello 3 NE by the year they were set
Year set
Standing records
1956
15
1957
37
1958
20
1959
35
1960
33
1961
24
1962
41
1963
49
1964
32
1965
23
1966
29
1967
42
1968
19
1969
23
1970
31
1971
27
1972
22
1973
18
1974
40
1975
18
1976
28
1977
32
1978
13
1979
22
1980
37
1981
13
1982
27
1983
31
1984
20
1985
26
1986
31
1987
17
1988
41
1989
34
1990
18
1991
23
1992
23
1993
21
1994
14
1995
10
1996
31
1997
28
1998
23
1999
17
2000
31
2001
20
2002
27
2003
11
2004
14
2005
17
2006
26
2007
42
2008
20
2009
15
2010
28
2011
22
2012
27
2013
6
All-Time Record Progression
6 new records
6 all-time records were set at Monticello 3 NE between 9 July 1988 and 30 June 2012. Each dot is a new record.
When Monticello 3 NE set new all-time records
Date
Kind
Detail
1988-07-09
Record high maximum temperature
Record high maximum temperature 38.9 C (102.0 F)
1988-07-10
Record high maximum temperature
Record high maximum temperature 39.4 C (102.9 F)
1989-12-23
Record low maximum temperature
Record low maximum temperature -16.1 C (3.0 F)
1994-01-19
Record low minimum temperature
Record low minimum temperature -30.6 C (-23.1 F)
1998-02-05
Record snow depth
Record snow depth 35.6 cm (14.0 in)
2012-06-30
Record high maximum temperature
Record high maximum temperature 40.6 C (105.1 F)
Wettest Day of Each Month
Nov: 136.1 mm (5.4 in)
The wettest day on record for each calendar month at Monticello 3 NE. The most was 136.1 mm (5.4 in) on 4 November 1936.
Record daily precipitation for each month at Monticello 3 NE
Month
Record daily precipitation (mm)
Date
Jan
103.4 mm (4.1 in)
29 January 1957
Feb
101.1 mm (4.0 in)
6 February 2004
Mar
92.5 mm (3.6 in)
12 March 1963
Apr
91.4 mm (3.6 in)
12 April 1972
May
109.5 mm (4.3 in)
7 May 1984
Jun
98.0 mm (3.9 in)
1 June 1998
Jul
101.6 mm (4.0 in)
3 July 1941
Aug
89.9 mm (3.5 in)
10 August 1970
Sep
108.7 mm (4.3 in)
29 September 1964
Oct
106.7 mm (4.2 in)
17 October 1989
Nov
136.1 mm (5.4 in)
4 November 1936
Dec
101.1 mm (4.0 in)
4 December 1978
Period of Record Coverage
1956 to 2013
Complete yearUnder 90 percent of days
58 years of record at Monticello 3 NE, 1956 to 2013. 4 years have data for under 90 percent of days and are left out of rankings: 1956, 1984, 1985, 2013.
Cooler than the station meanWarmer than the station mean
One stripe for each of 51 complete years at Monticello 3 NE, 1957 to 2012. Blue stripes are years cooler than the station's own mean of 13.5 C (56.4 F); red stripes are warmer. The coolest year was 1996, at 12.3 C (54.1 F), and the warmest was 2012, at 14.6 C (58.3 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Monticello 3 NE as warming stripes, 1957 to 2012
Year
Annual mean temperature
Difference from the station mean
1957
14.6 C
+1.03 C
1958
12.7 C
-0.84 C
1959
14.3 C
+0.78 C
1960
12.8 C
-0.69 C
1961
13.4 C
-0.09 C
1962
13.7 C
+0.21 C
1963
13.1 C
-0.47 C
1964
14.2 C
+0.64 C
1965
14.2 C
+0.66 C
1966
13.1 C
-0.39 C
1967
13.7 C
+0.13 C
1968
13.3 C
-0.21 C
1969
13.2 C
-0.35 C
1970
14.0 C
+0.44 C
1971
14.1 C
+0.59 C
1972
13.9 C
+0.39 C
1973
14.4 C
+0.85 C
1974
14.2 C
+0.66 C
1975
14.5 C
+0.96 C
1976
13.0 C
-0.58 C
1977
13.8 C
+0.22 C
1978
13.2 C
-0.35 C
1979
13.2 C
-0.32 C
1980
13.8 C
+0.26 C
1981
13.2 C
-0.29 C
1983
13.7 C
+0.18 C
1986
13.9 C
+0.33 C
1987
13.6 C
+0.10 C
1988
12.6 C
-0.89 C
1989
12.5 C
-1.00 C
1990
14.1 C
+0.59 C
1991
14.2 C
+0.65 C
1992
12.8 C
-0.77 C
1993
12.8 C
-0.74 C
1994
12.9 C
-0.59 C
1995
12.8 C
-0.71 C
1996
12.3 C
-1.26 C
1997
12.4 C
-1.18 C
1998
14.5 C
+0.97 C
1999
13.8 C
+0.25 C
2000
13.1 C
-0.42 C
2001
13.6 C
+0.04 C
2002
13.6 C
+0.04 C
2003
13.0 C
-0.57 C
2004
13.6 C
+0.07 C
2005
14.0 C
+0.42 C
2006
13.8 C
+0.29 C
2007
14.4 C
+0.83 C
2008
13.1 C
-0.48 C
2010
13.1 C
-0.45 C
2012
14.6 C
+1.06 C
The fitted trend in annual mean temperature here over 1957 to 2012 is -0.05 C (-0.16 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.1) per decade. The slope is a straight line fitted to 51 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Monticello 3 NE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.05 C (-0.16 to 0.06) per decade
-0.1 F (-0.3 to 0.1) per decade
1957 to 2012
51
Not clearly different from zero
Mean daily maximum
-0.11 C (-0.23 to 0.02) per decade
-0.19 F (-0.41 to 0.03) per decade
1957 to 2012
51
Not clearly different from zero
Mean daily minimum
0.01 C (-0.11 to 0.13) per decade
0.02 F (-0.20 to 0.24) per decade
1957 to 2012
51
Not clearly different from zero
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 2013
Yearly extremes at Monticello 3 NE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
2012
35.0 C (95.0 F)
58
Coldest night (TNn)
-30.6 C (-23.1 F)
1994
-18.3 C (-0.9 F)
58
Wettest day (Rx1day)
136.1 mm (5.4 in)
1936
65.7 mm (2.6 in)
78
Wettest five days (Rx5day)
190.7 mm (7.5 in)
1941
109.2 mm (4.3 in)
78
Longest dry spell (CDD)
31 days
1963
17 days
78
Hottest day (TXx)
The hottest day of the year at Monticello 3 NE, 1936 to 2013. The record is 40.6 C (105.1 F) in 2012, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Monticello 3 NE by year
Year
Hottest day (TXx)
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
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
35.0 C (95.0 F)
1957
37.8 C (100.0 F)
1958
32.8 C (91.0 F)
1959
36.1 C (97.0 F)
1960
34.4 C (93.9 F)
1961
33.3 C (91.9 F)
1962
37.2 C (99.0 F)
1963
35.6 C (96.1 F)
1964
36.1 C (97.0 F)
1965
35.0 C (95.0 F)
1966
36.7 C (98.1 F)
1967
33.3 C (91.9 F)
1968
36.1 C (97.0 F)
1969
34.4 C (93.9 F)
1970
36.1 C (97.0 F)
1971
35.0 C (95.0 F)
1972
34.4 C (93.9 F)
1973
33.9 C (93.0 F)
1974
32.8 C (91.0 F)
1975
35.6 C (96.1 F)
1976
32.8 C (91.0 F)
1977
33.9 C (93.0 F)
1978
33.9 C (93.0 F)
1979
32.8 C (91.0 F)
1980
38.3 C (100.9 F)
1981
33.9 C (93.0 F)
1982
32.2 C (90.0 F)
1983
38.3 C (100.9 F)
1984
33.9 C (93.0 F)
1985
33.9 C (93.0 F)
1986
36.1 C (97.0 F)
1987
35.6 C (96.1 F)
1988
39.4 C (102.9 F)
1989
33.3 C (91.9 F)
1990
36.1 C (97.0 F)
1991
35.6 C (96.1 F)
1992
32.8 C (91.0 F)
1993
35.6 C (96.1 F)
1994
33.3 C (91.9 F)
1995
35.0 C (95.0 F)
1996
33.9 C (93.0 F)
1997
34.4 C (93.9 F)
1998
35.6 C (96.1 F)
1999
36.7 C (98.1 F)
2000
33.9 C (93.0 F)
2001
33.9 C (93.0 F)
2002
35.0 C (95.0 F)
2003
32.2 C (90.0 F)
2004
32.2 C (90.0 F)
2005
35.0 C (95.0 F)
2006
35.0 C (95.0 F)
2007
38.3 C (100.9 F)
2008
34.4 C (93.9 F)
2009
32.8 C (91.0 F)
2010
36.1 C (97.0 F)
2011
36.7 C (98.1 F)
2012
40.6 C (105.1 F)
2013
32.8 C (91.0 F)
Coldest night (TNn)
The coldest night of the year at Monticello 3 NE, 1936 to 2013. The record is -30.6 C (-23.1 F) in 1994, marked on the chart; the median year is -18.3 C (-0.9 F).
Coldest night (TNn) at Monticello 3 NE by year
Year
Coldest night (TNn)
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
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
-8.3 C (17.1 F)
1957
-16.7 C (1.9 F)
1958
-20.0 C (-4.0 F)
1959
-20.0 C (-4.0 F)
1960
-22.8 C (-9.0 F)
1961
-22.2 C (-8.0 F)
1962
-26.1 C (-15.0 F)
1963
-29.4 C (-20.9 F)
1964
-18.3 C (-0.9 F)
1965
-23.3 C (-9.9 F)
1966
-25.6 C (-14.1 F)
1967
-18.3 C (-0.9 F)
1968
-17.2 C (1.0 F)
1969
-21.7 C (-7.1 F)
1970
-23.9 C (-11.0 F)
1971
-23.9 C (-11.0 F)
1972
-20.6 C (-5.1 F)
1973
-18.3 C (-0.9 F)
1974
-12.8 C (9.0 F)
1975
-13.9 C (7.0 F)
1976
-20.0 C (-4.0 F)
1977
-24.4 C (-11.9 F)
1978
-20.0 C (-4.0 F)
1979
-21.7 C (-7.1 F)
1980
-21.1 C (-6.0 F)
1981
-20.6 C (-5.1 F)
1982
-24.4 C (-11.9 F)
1983
-22.8 C (-9.0 F)
1984
-26.1 C (-15.0 F)
1985
-15.6 C (3.9 F)
1986
-20.6 C (-5.1 F)
1987
-18.9 C (-2.0 F)
1988
-16.7 C (1.9 F)
1989
-23.9 C (-11.0 F)
1990
-11.1 C (12.0 F)
1991
-15.6 C (3.9 F)
1992
-15.6 C (3.9 F)
1993
-15.6 C (3.9 F)
1994
-30.6 C (-23.1 F)
1995
-17.8 C (0.0 F)
1996
-25.6 C (-14.1 F)
1997
-17.2 C (1.0 F)
1998
-15.6 C (3.9 F)
1999
-16.7 C (1.9 F)
2000
-15.6 C (3.9 F)
2001
-16.7 C (1.9 F)
2002
-12.2 C (10.0 F)
2003
-19.4 C (-2.9 F)
2004
-15.0 C (5.0 F)
2005
-14.4 C (6.1 F)
2006
-12.8 C (9.0 F)
2007
-13.9 C (7.0 F)
2008
-14.4 C (6.1 F)
2009
-18.3 C (-0.9 F)
2010
-16.1 C (3.0 F)
2011
-17.8 C (0.0 F)
2012
-10.0 C (14.0 F)
2013
-10.6 C (12.9 F)
Wettest day (Rx1day)
The wettest day of the year at Monticello 3 NE, 1936 to 2013. The record is 136.1 mm (5.4 in) in 1936, marked on the chart; the median year is 65.7 mm (2.6 in).
Wettest day (Rx1day) at Monticello 3 NE by year
Year
Wettest day (Rx1day)
1936
136.1 mm (5.4 in)
1937
66.3 mm (2.6 in)
1938
66.8 mm (2.6 in)
1939
76.2 mm (3.0 in)
1940
48.3 mm (1.9 in)
1941
101.6 mm (4.0 in)
1942
54.6 mm (2.1 in)
1943
40.6 mm (1.6 in)
1944
50.8 mm (2.0 in)
1945
93.2 mm (3.7 in)
1946
95.3 mm (3.8 in)
1947
46.5 mm (1.8 in)
1948
58.9 mm (2.3 in)
1949
59.7 mm (2.4 in)
1950
50.8 mm (2.0 in)
1951
76.2 mm (3.0 in)
1952
78.2 mm (3.1 in)
1953
40.4 mm (1.6 in)
1954
85.6 mm (3.4 in)
1955
72.4 mm (2.9 in)
1956
81.3 mm (3.2 in)
1957
103.4 mm (4.1 in)
1958
45.7 mm (1.8 in)
1959
33.0 mm (1.3 in)
1960
64.8 mm (2.6 in)
1961
56.4 mm (2.2 in)
1962
81.3 mm (3.2 in)
1963
92.5 mm (3.6 in)
1964
108.7 mm (4.3 in)
1965
45.5 mm (1.8 in)
1966
56.9 mm (2.2 in)
1967
71.1 mm (2.8 in)
1968
58.7 mm (2.3 in)
1969
54.1 mm (2.1 in)
1970
89.9 mm (3.5 in)
1971
67.1 mm (2.6 in)
1972
91.4 mm (3.6 in)
1973
88.9 mm (3.5 in)
1974
69.6 mm (2.7 in)
1975
85.3 mm (3.4 in)
1976
74.7 mm (2.9 in)
1977
47.0 mm (1.9 in)
1978
101.1 mm (4.0 in)
1979
59.7 mm (2.4 in)
1980
35.6 mm (1.4 in)
1981
88.1 mm (3.5 in)
1982
103.1 mm (4.1 in)
1983
56.1 mm (2.2 in)
1984
109.5 mm (4.3 in)
1985
56.6 mm (2.2 in)
1986
101.1 mm (4.0 in)
1987
71.1 mm (2.8 in)
1988
78.5 mm (3.1 in)
1989
106.7 mm (4.2 in)
1990
60.7 mm (2.4 in)
1991
74.4 mm (2.9 in)
1992
64.5 mm (2.5 in)
1993
64.5 mm (2.5 in)
1994
63.8 mm (2.5 in)
1995
64.0 mm (2.5 in)
1996
66.3 mm (2.6 in)
1997
64.0 mm (2.5 in)
1998
98.0 mm (3.9 in)
1999
52.8 mm (2.1 in)
2000
56.6 mm (2.2 in)
2001
65.0 mm (2.6 in)
2002
52.1 mm (2.1 in)
2003
61.2 mm (2.4 in)
2004
101.1 mm (4.0 in)
2005
56.4 mm (2.2 in)
2006
64.3 mm (2.5 in)
2007
51.8 mm (2.0 in)
2008
53.8 mm (2.1 in)
2009
79.5 mm (3.1 in)
2010
98.0 mm (3.9 in)
2011
64.0 mm (2.5 in)
2012
106.7 mm (4.2 in)
2013
42.9 mm (1.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Monticello 3 NE, 1936 to 2013. The record is 190.7 mm (7.5 in) in 1941, marked on the chart; the median year is 109.2 mm (4.3 in).
Wettest five days (Rx5day) at Monticello 3 NE by year
Year
Wettest five days (Rx5day)
1936
159.3 mm (6.3 in)
1937
111.5 mm (4.4 in)
1938
87.3 mm (3.4 in)
1939
114.0 mm (4.5 in)
1940
78.8 mm (3.1 in)
1941
190.7 mm (7.5 in)
1942
77.4 mm (3.0 in)
1943
78.0 mm (3.1 in)
1944
85.1 mm (3.4 in)
1945
129.0 mm (5.1 in)
1946
176.1 mm (6.9 in)
1947
75.9 mm (3.0 in)
1948
79.7 mm (3.1 in)
1949
94.0 mm (3.7 in)
1950
114.3 mm (4.5 in)
1951
126.7 mm (5.0 in)
1952
132.9 mm (5.2 in)
1953
71.2 mm (2.8 in)
1954
85.6 mm (3.4 in)
1955
160.7 mm (6.3 in)
1956
150.1 mm (5.9 in)
1957
158.1 mm (6.2 in)
1958
86.9 mm (3.4 in)
1959
66.8 mm (2.6 in)
1960
80.8 mm (3.2 in)
1961
86.6 mm (3.4 in)
1962
166.9 mm (6.6 in)
1963
104.4 mm (4.1 in)
1964
148.8 mm (5.9 in)
1965
114.8 mm (4.5 in)
1966
82.1 mm (3.2 in)
1967
100.1 mm (3.9 in)
1968
104.4 mm (4.1 in)
1969
95.0 mm (3.7 in)
1970
170.4 mm (6.7 in)
1971
101.4 mm (4.0 in)
1972
129.5 mm (5.1 in)
1973
116.1 mm (4.6 in)
1974
105.7 mm (4.2 in)
1975
174.2 mm (6.9 in)
1976
128.4 mm (5.1 in)
1977
100.4 mm (4.0 in)
1978
146.4 mm (5.8 in)
1979
91.4 mm (3.6 in)
1980
74.8 mm (2.9 in)
1981
106.1 mm (4.2 in)
1982
137.4 mm (5.4 in)
1983
71.6 mm (2.8 in)
1984
178.6 mm (7.0 in)
1985
86.9 mm (3.4 in)
1986
165.4 mm (6.5 in)
1987
116.7 mm (4.6 in)
1988
108.2 mm (4.3 in)
1989
116.6 mm (4.6 in)
1990
149.3 mm (5.9 in)
1991
128.0 mm (5.0 in)
1992
85.1 mm (3.4 in)
1993
87.4 mm (3.4 in)
1994
113.6 mm (4.5 in)
1995
110.2 mm (4.3 in)
1996
77.9 mm (3.1 in)
1997
157.7 mm (6.2 in)
1998
126.7 mm (5.0 in)
1999
74.9 mm (2.9 in)
2000
98.3 mm (3.9 in)
2001
130.3 mm (5.1 in)
2002
120.1 mm (4.7 in)
2003
125.2 mm (4.9 in)
2004
120.2 mm (4.7 in)
2005
74.5 mm (2.9 in)
2006
102.4 mm (4.0 in)
2007
61.2 mm (2.4 in)
2008
91.1 mm (3.6 in)
2009
89.6 mm (3.5 in)
2010
167.6 mm (6.6 in)
2011
121.2 mm (4.8 in)
2012
115.8 mm (4.6 in)
2013
73.4 mm (2.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Monticello 3 NE, 1936 to 2013. The record is 31 days in 1963, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Monticello 3 NE by year
Year
Longest dry spell (CDD)
1936
19 days
1937
13 days
1938
19 days
1939
22 days
1940
13 days
1941
13 days
1942
14 days
1943
17 days
1944
21 days
1945
18 days
1946
14 days
1947
18 days
1948
20 days
1949
17 days
1950
19 days
1951
14 days
1952
24 days
1953
22 days
1954
13 days
1955
15 days
1956
16 days
1957
18 days
1958
22 days
1959
27 days
1960
13 days
1961
15 days
1962
13 days
1963
31 days
1964
22 days
1965
17 days
1966
14 days
1967
17 days
1968
19 days
1969
16 days
1970
12 days
1971
11 days
1972
12 days
1973
22 days
1974
19 days
1975
12 days
1976
14 days
1977
17 days
1978
15 days
1979
14 days
1980
16 days
1981
13 days
1982
12 days
1983
13 days
1984
20 days
1985
17 days
1986
19 days
1987
20 days
1988
14 days
1989
13 days
1990
17 days
1991
22 days
1992
19 days
1993
17 days
1994
14 days
1995
23 days
1996
16 days
1997
17 days
1998
20 days
1999
21 days
2000
19 days
2001
16 days
2002
21 days
2003
13 days
2004
13 days
2005
16 days
2006
11 days
2007
18 days
2008
24 days
2009
19 days
2010
19 days
2011
19 days
2012
18 days
2013
8 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
51 years with a frost
Across 51 years with a frost, the median last spring frost at Monticello 3 NE falls on 21 April and the median first autumn frost on 19 October, which leaves a median of 181 days between them.
Fitted over all years, the growing season changes by +4.1 days per decade at this station.
Frost dates and growing season at Monticello 3 NE
Measure
Median, all years
Earliest period
Recent period (1978 to 2012)
Recent against earliest
Fitted trend
Last spring frost
21 April
n/a
17 April
n/a
-2.6 days per decade
First autumn frost
19 October
n/a
20 October
n/a
+1.5 days per decade
Growing days
181 days
n/a
184 days
n/a
+4.1 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
74 years, 1937 to 2012
A day with at least 68.5 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 124.7 mm (4.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Monticello 3 NE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
68.5 mm (2.7 in)
5 years
86.4 mm (3.4 in)
10 years
97.1 mm (3.8 in)
25 years
109.1 mm (4.3 in)
50 years
117.3 mm (4.6 in)
100 years
124.7 mm (4.9 in)
Longer than the 74 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, 74 years of values from 1937 to 2012.
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: 108.7 mm (4.3 in) in 1964; 106.7 mm (4.2 in) in 1989; 106.7 mm (4.2 in) in 2012.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Monticello 3 NE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Monticello 3 NE 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.