Record envelope, standing records and threshold days for Fredericktown 4 S (USC00332956), Ohio, United States, with 74 years of record.
Key Facts for Fredericktown 4 S
Fredericktown 4 S (USC00332956) is a weather station in Ohio, United States at 40.42 latitude and -82.53 longitude, 320 m (1,050 ft) above sea level.
The station reports from 1939 to 2012, 74 years of record.
1,464 records set at Fredericktown 4 S still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Fredericktown 4 S set a daily record precipitation of 40.6 mm (1.6 in) on 30 March 2012.
About the Station
Location: Ohio, United States, 40.42 latitude, -82.53 longitude.
Elevation: 320 m (1,050 ft).
Period of record: 1939 to 2012, 74 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 Fredericktown 4 S. 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 Fredericktown 4 S, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.2 C (72.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Feb
22.2 C (72.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-29.4 C (-20.9 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-11.7 C (10.9 F)
n/a
n/a
May
33.9 C (93.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
37.8 C (100.0 F)
0.0 C (32.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
3.3 C (37.9 F)
n/a
n/a
Aug
37.8 C (100.0 F)
0.0 C (32.0 F)
n/a
n/a
Sep
37.2 C (99.0 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
26.7 C (80.1 F)
-21.7 C (-7.1 F)
n/a
n/a
Dec
23.9 C (75.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Fredericktown 4 S still stand. 1944 holds the most, with 43.
Standing records at Fredericktown 4 S by the year they were set
Year set
Standing records
1941
3
1942
30
1943
37
1944
43
1945
32
1946
27
1947
10
1948
14
1949
34
1950
43
1951
26
1952
33
1953
27
1954
6
1955
18
1956
13
1957
12
1958
22
1959
34
1960
12
1961
14
1962
18
1963
38
1964
21
1965
21
1966
20
1967
23
1968
14
1969
14
1970
16
1971
15
1972
25
1973
8
1974
31
1975
19
1976
39
1977
41
1978
37
1979
38
1980
13
1981
19
1982
19
1983
21
1984
33
1985
24
1986
27
1987
10
1988
31
1989
12
1990
23
1991
9
1992
10
1993
13
1994
17
1995
14
1996
17
1997
11
1998
14
1999
16
2000
21
2001
16
2002
19
2003
12
2004
13
2005
14
2006
11
2007
16
2008
11
2009
18
2010
8
2011
14
2012
10
All-Time Record Progression
8 new records
8 all-time records were set at Fredericktown 4 S between 17 January 1977 and 5 February 2010. Each dot is a new record.
When Fredericktown 4 S set new all-time records
Date
Kind
Detail
1977-01-17
Record low maximum temperature
Record low maximum temperature -20.6 C (-5.1 F)
1977-02-08
Record low minimum temperature
Record low minimum temperature -31.7 C (-25.1 F)
1979-09-14
Record daily precipitation
Record daily precipitation 122.4 mm (4.8 in)
1983-12-25
Record low maximum temperature
Record low maximum temperature -22.2 C (-8.0 F)
1985-01-21
Record low maximum temperature
Record low maximum temperature -23.3 C (-9.9 F)
1985-02-03
Record low minimum temperature
Record low minimum temperature -32.2 C (-26.0 F)
1994-01-18
Record low minimum temperature
Record low minimum temperature -34.4 C (-29.9 F)
2010-02-05
Record daily snowfall
Record daily snowfall 33.0 cm (13.0 in)
Wettest Day of Each Month
Sep: 122.4 mm (4.8 in)
The wettest day on record for each calendar month at Fredericktown 4 S. The most was 122.4 mm (4.8 in) on 14 September 1979.
Record daily precipitation for each month at Fredericktown 4 S
Month
Record daily precipitation (mm)
Date
Jan
75.4 mm (3.0 in)
21 January 1959
Feb
101.6 mm (4.0 in)
27 February 2011
Mar
70.9 mm (2.8 in)
10 March 1964
Apr
76.2 mm (3.0 in)
19 April 2002
May
68.6 mm (2.7 in)
2 May 1985
Jun
101.6 mm (4.0 in)
9 June 1951
Jul
87.6 mm (3.4 in)
14 July 1945
Aug
77.5 mm (3.1 in)
4 August 1943
Sep
122.4 mm (4.8 in)
14 September 1979
Oct
67.3 mm (2.6 in)
2 October 1973
Nov
48.3 mm (1.9 in)
7 November 1951
Dec
48.5 mm (1.9 in)
23 December 2003
Period of Record Coverage
1940 to 2012
Complete yearUnder 90 percent of days
73 years of record at Fredericktown 4 S, 1940 to 2012. 18 years have data for under 90 percent of days and are left out of rankings: 1940, 1941, 1947, 1948, 1953, 1954, 1988, 1989 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 49 complete years at Fredericktown 4 S, 1942 to 2011. Blue stripes are years cooler than the station's own mean of 9.2 C (48.6 F); red stripes are warmer. The coolest year was 1978, at 6.7 C (44.1 F), and the warmest was 1946, at 10.7 C (51.3 F). The strongest colour marks a difference of 2.6 C (4.7 F).
Annual mean temperature at Fredericktown 4 S as warming stripes, 1942 to 2011
Year
Annual mean temperature
Difference from the station mean
1942
10.3 C
+1.07 C
1943
9.6 C
+0.36 C
1944
10.2 C
+0.98 C
1946
10.7 C
+1.46 C
1950
9.9 C
+0.62 C
1951
9.6 C
+0.36 C
1955
9.4 C
+0.18 C
1956
9.6 C
+0.31 C
1957
10.0 C
+0.71 C
1958
8.8 C
-0.50 C
1959
10.4 C
+1.10 C
1960
9.3 C
+0.05 C
1961
9.6 C
+0.33 C
1962
8.9 C
-0.34 C
1963
8.9 C
-0.34 C
1964
10.0 C
+0.79 C
1965
9.9 C
+0.66 C
1966
9.2 C
-0.01 C
1967
9.0 C
-0.23 C
1968
8.9 C
-0.35 C
1969
8.8 C
-0.46 C
1970
9.8 C
+0.53 C
1971
10.0 C
+0.79 C
1972
9.0 C
-0.23 C
1973
10.6 C
+1.32 C
1975
9.2 C
-0.09 C
1976
7.9 C
-1.40 C
1977
8.0 C
-1.30 C
1978
6.7 C
-2.54 C
1979
8.2 C
-1.07 C
1980
8.7 C
-0.57 C
1981
8.7 C
-0.52 C
1982
9.2 C
-0.09 C
1983
9.1 C
-0.12 C
1984
8.7 C
-0.51 C
1985
8.6 C
-0.68 C
1986
9.2 C
-0.06 C
1987
9.7 C
+0.46 C
1992
9.0 C
-0.23 C
1993
9.2 C
-0.09 C
1994
8.4 C
-0.85 C
1996
8.4 C
-0.87 C
1999
9.5 C
+0.26 C
2001
9.6 C
+0.32 C
2002
9.7 C
+0.46 C
2004
8.8 C
-0.47 C
2005
9.1 C
-0.20 C
2006
9.8 C
+0.50 C
2011
9.6 C
+0.33 C
The annual mean temperature here has fallen by 0.14 C (0.03 to 0.25) per decade over 1942 to 2011. In Fahrenheit: 0.25 F (0.05 to 0.45) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Fredericktown 4 S
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.14 C (-0.25 to -0.03) per decade
-0.25 F (-0.45 to -0.05) per decade
1942 to 2011
49
Fall
Mean daily maximum
-0.3 C (-0.4 to -0.1) per decade
-0.5 F (-0.7 to -0.3) per decade
1942 to 2011
49
Fall
Mean daily minimum
-0.02 C (-0.17 to 0.14) per decade
-0.03 F (-0.31 to 0.24) per decade
1942 to 2011
49
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
1939 to 2012
Yearly extremes at Fredericktown 4 S: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1944
33.9 C (93.0 F)
73
Coldest night (TNn)
-34.4 C (-29.9 F)
1994
-23.9 C (-11.0 F)
73
Wettest day (Rx1day)
122.4 mm (4.8 in)
1979
51.9 mm (2.0 in)
74
Wettest five days (Rx5day)
165.4 mm (6.5 in)
1998
78.0 mm (3.1 in)
73
Longest dry spell (CDD)
48 days
1963
15 days
74
Hottest day (TXx)
The hottest day of the year at Fredericktown 4 S, 1939 to 2012. The record is 38.9 C (102.0 F) in 1944, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Fredericktown 4 S by year
Year
Hottest day (TXx)
1939
n/a
1940
16.1 C (61.0 F)
1941
33.3 C (91.9 F)
1942
35.6 C (96.1 F)
1943
36.7 C (98.1 F)
1944
38.9 C (102.0 F)
1945
36.7 C (98.1 F)
1946
36.7 C (98.1 F)
1947
35.6 C (96.1 F)
1948
37.2 C (99.0 F)
1949
35.6 C (96.1 F)
1950
33.3 C (91.9 F)
1951
35.0 C (95.0 F)
1952
37.2 C (99.0 F)
1953
37.2 C (99.0 F)
1954
35.6 C (96.1 F)
1955
35.0 C (95.0 F)
1956
34.4 C (93.9 F)
1957
34.4 C (93.9 F)
1958
32.2 C (90.0 F)
1959
35.6 C (96.1 F)
1960
33.3 C (91.9 F)
1961
33.3 C (91.9 F)
1962
35.6 C (96.1 F)
1963
33.9 C (93.0 F)
1964
35.6 C (96.1 F)
1965
37.2 C (99.0 F)
1966
36.1 C (97.0 F)
1967
33.9 C (93.0 F)
1968
33.9 C (93.0 F)
1969
32.8 C (91.0 F)
1970
35.0 C (95.0 F)
1971
37.2 C (99.0 F)
1972
33.3 C (91.9 F)
1973
34.4 C (93.9 F)
1974
32.8 C (91.0 F)
1975
35.0 C (95.0 F)
1976
32.8 C (91.0 F)
1977
33.9 C (93.0 F)
1978
35.0 C (95.0 F)
1979
32.8 C (91.0 F)
1980
35.0 C (95.0 F)
1981
33.9 C (93.0 F)
1982
34.4 C (93.9 F)
1983
35.6 C (96.1 F)
1984
33.9 C (93.0 F)
1985
33.3 C (91.9 F)
1986
33.3 C (91.9 F)
1987
33.9 C (93.0 F)
1988
37.8 C (100.0 F)
1989
32.8 C (91.0 F)
1990
33.3 C (91.9 F)
1991
31.7 C (89.1 F)
1992
31.1 C (88.0 F)
1993
33.3 C (91.9 F)
1994
35.6 C (96.1 F)
1995
36.7 C (98.1 F)
1996
33.3 C (91.9 F)
1997
32.2 C (90.0 F)
1998
33.3 C (91.9 F)
1999
35.0 C (95.0 F)
2000
31.1 C (88.0 F)
2001
32.8 C (91.0 F)
2002
34.4 C (93.9 F)
2003
32.2 C (90.0 F)
2004
31.1 C (88.0 F)
2005
32.8 C (91.0 F)
2006
32.8 C (91.0 F)
2007
33.3 C (91.9 F)
2008
33.3 C (91.9 F)
2009
31.7 C (89.1 F)
2010
32.2 C (90.0 F)
2011
37.2 C (99.0 F)
2012
27.8 C (82.0 F)
Coldest night (TNn)
The coldest night of the year at Fredericktown 4 S, 1939 to 2012. The record is -34.4 C (-29.9 F) in 1994, marked on the chart; the median year is -23.9 C (-11.0 F).
Coldest night (TNn) at Fredericktown 4 S by year
Year
Coldest night (TNn)
1939
n/a
1940
-13.9 C (7.0 F)
1941
-15.6 C (3.9 F)
1942
-27.2 C (-17.0 F)
1943
-22.2 C (-8.0 F)
1944
-25.6 C (-14.1 F)
1945
-25.0 C (-13.0 F)
1946
-24.4 C (-11.9 F)
1947
-21.1 C (-6.0 F)
1948
-27.8 C (-18.0 F)
1949
-17.8 C (0.0 F)
1950
-30.6 C (-23.1 F)
1951
-28.9 C (-20.0 F)
1952
-18.9 C (-2.0 F)
1953
-19.4 C (-2.9 F)
1954
-20.0 C (-4.0 F)
1955
-24.4 C (-11.9 F)
1956
-19.4 C (-2.9 F)
1957
-22.2 C (-8.0 F)
1958
-25.6 C (-14.1 F)
1959
-22.8 C (-9.0 F)
1960
-22.8 C (-9.0 F)
1961
-26.1 C (-15.0 F)
1962
-25.0 C (-13.0 F)
1963
-28.9 C (-20.0 F)
1964
-21.7 C (-7.1 F)
1965
-23.9 C (-11.0 F)
1966
-22.2 C (-8.0 F)
1967
-22.2 C (-8.0 F)
1968
-24.4 C (-11.9 F)
1969
-19.4 C (-2.9 F)
1970
-23.9 C (-11.0 F)
1971
-21.7 C (-7.1 F)
1972
-25.6 C (-14.1 F)
1973
-20.0 C (-4.0 F)
1974
-23.9 C (-11.0 F)
1975
-29.4 C (-20.9 F)
1976
-25.6 C (-14.1 F)
1977
-31.7 C (-25.1 F)
1978
-30.0 C (-22.0 F)
1979
-30.0 C (-22.0 F)
1980
-22.2 C (-8.0 F)
1981
-27.2 C (-17.0 F)
1982
-28.9 C (-20.0 F)
1983
-26.7 C (-16.1 F)
1984
-31.7 C (-25.1 F)
1985
-32.2 C (-26.0 F)
1986
-22.8 C (-9.0 F)
1987
-21.7 C (-7.1 F)
1988
-20.6 C (-5.1 F)
1989
-16.7 C (1.9 F)
1990
-20.6 C (-5.1 F)
1991
-19.4 C (-2.9 F)
1992
-19.4 C (-2.9 F)
1993
-26.1 C (-15.0 F)
1994
-34.4 C (-29.9 F)
1995
-21.7 C (-7.1 F)
1996
-23.3 C (-9.9 F)
1997
-22.2 C (-8.0 F)
1998
-15.6 C (3.9 F)
1999
-23.9 C (-11.0 F)
2000
-26.7 C (-16.1 F)
2001
-19.4 C (-2.9 F)
2002
-16.7 C (1.9 F)
2003
-30.6 C (-23.1 F)
2004
-28.9 C (-20.0 F)
2005
-25.6 C (-14.1 F)
2006
-16.1 C (3.0 F)
2007
-24.4 C (-11.9 F)
2008
-20.0 C (-4.0 F)
2009
-33.3 C (-27.9 F)
2010
-22.8 C (-9.0 F)
2011
-26.1 C (-15.0 F)
2012
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Fredericktown 4 S, 1939 to 2012. The record is 122.4 mm (4.8 in) in 1979, marked on the chart; the median year is 51.9 mm (2.0 in).
Wettest day (Rx1day) at Fredericktown 4 S by year
Year
Wettest day (Rx1day)
1939
52.1 mm (2.1 in)
1940
39.1 mm (1.5 in)
1941
54.4 mm (2.1 in)
1942
47.0 mm (1.9 in)
1943
77.5 mm (3.1 in)
1944
39.4 mm (1.6 in)
1945
87.6 mm (3.4 in)
1946
57.2 mm (2.3 in)
1947
45.7 mm (1.8 in)
1948
49.8 mm (2.0 in)
1949
27.9 mm (1.1 in)
1950
44.5 mm (1.8 in)
1951
101.6 mm (4.0 in)
1952
62.2 mm (2.4 in)
1953
33.0 mm (1.3 in)
1954
27.9 mm (1.1 in)
1955
45.2 mm (1.8 in)
1956
47.8 mm (1.9 in)
1957
46.5 mm (1.8 in)
1958
35.6 mm (1.4 in)
1959
75.4 mm (3.0 in)
1960
57.9 mm (2.3 in)
1961
50.8 mm (2.0 in)
1962
55.4 mm (2.2 in)
1963
50.8 mm (2.0 in)
1964
70.9 mm (2.8 in)
1965
29.5 mm (1.2 in)
1966
54.9 mm (2.2 in)
1967
45.2 mm (1.8 in)
1968
40.4 mm (1.6 in)
1969
66.8 mm (2.6 in)
1970
52.8 mm (2.1 in)
1971
57.2 mm (2.3 in)
1972
68.6 mm (2.7 in)
1973
67.3 mm (2.6 in)
1974
43.2 mm (1.7 in)
1975
48.5 mm (1.9 in)
1976
46.7 mm (1.8 in)
1977
39.1 mm (1.5 in)
1978
47.0 mm (1.9 in)
1979
122.4 mm (4.8 in)
1980
61.7 mm (2.4 in)
1981
48.5 mm (1.9 in)
1982
46.0 mm (1.8 in)
1983
46.5 mm (1.8 in)
1984
51.1 mm (2.0 in)
1985
68.6 mm (2.7 in)
1986
54.6 mm (2.1 in)
1987
63.0 mm (2.5 in)
1988
68.8 mm (2.7 in)
1989
49.5 mm (1.9 in)
1990
51.6 mm (2.0 in)
1991
63.0 mm (2.5 in)
1992
63.5 mm (2.5 in)
1993
53.3 mm (2.1 in)
1994
50.8 mm (2.0 in)
1995
52.1 mm (2.1 in)
1996
38.6 mm (1.5 in)
1997
53.3 mm (2.1 in)
1998
53.3 mm (2.1 in)
1999
58.4 mm (2.3 in)
2000
53.3 mm (2.1 in)
2001
50.8 mm (2.0 in)
2002
76.2 mm (3.0 in)
2003
48.5 mm (1.9 in)
2004
53.3 mm (2.1 in)
2005
61.0 mm (2.4 in)
2006
51.1 mm (2.0 in)
2007
59.7 mm (2.4 in)
2008
53.3 mm (2.1 in)
2009
48.5 mm (1.9 in)
2010
48.3 mm (1.9 in)
2011
101.6 mm (4.0 in)
2012
40.6 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Fredericktown 4 S, 1939 to 2012. The record is 165.4 mm (6.5 in) in 1998, marked on the chart; the median year is 78.0 mm (3.1 in).
Wettest five days (Rx5day) at Fredericktown 4 S by year
Year
Wettest five days (Rx5day)
1939
81.4 mm (3.2 in)
1940
72.1 mm (2.8 in)
1941
70.1 mm (2.8 in)
1942
71.7 mm (2.8 in)
1943
80.0 mm (3.1 in)
1944
69.9 mm (2.8 in)
1945
91.4 mm (3.6 in)
1946
92.8 mm (3.7 in)
1947
76.4 mm (3.0 in)
1948
90.5 mm (3.6 in)
1949
49.7 mm (2.0 in)
1950
82.2 mm (3.2 in)
1951
116.6 mm (4.6 in)
1952
62.2 mm (2.4 in)
1953
48.7 mm (1.9 in)
1954
60.4 mm (2.4 in)
1955
52.7 mm (2.1 in)
1956
87.6 mm (3.4 in)
1957
83.1 mm (3.3 in)
1958
76.5 mm (3.0 in)
1959
126.2 mm (5.0 in)
1960
62.7 mm (2.5 in)
1961
73.2 mm (2.9 in)
1962
67.9 mm (2.7 in)
1963
80.8 mm (3.2 in)
1964
124.0 mm (4.9 in)
1965
46.8 mm (1.8 in)
1966
119.9 mm (4.7 in)
1967
57.2 mm (2.3 in)
1968
87.0 mm (3.4 in)
1969
80.0 mm (3.1 in)
1970
78.0 mm (3.1 in)
1971
76.8 mm (3.0 in)
1972
89.9 mm (3.5 in)
1973
88.6 mm (3.5 in)
1974
58.3 mm (2.3 in)
1975
89.1 mm (3.5 in)
1976
82.5 mm (3.2 in)
1977
84.9 mm (3.3 in)
1978
49.5 mm (1.9 in)
1979
125.7 mm (4.9 in)
1980
93.4 mm (3.7 in)
1981
103.6 mm (4.1 in)
1982
61.0 mm (2.4 in)
1983
99.6 mm (3.9 in)
1984
58.9 mm (2.3 in)
1985
80.5 mm (3.2 in)
1986
108.8 mm (4.3 in)
1987
77.5 mm (3.1 in)
1988
117.0 mm (4.6 in)
1989
68.6 mm (2.7 in)
1990
155.7 mm (6.1 in)
1991
63.0 mm (2.5 in)
1992
93.7 mm (3.7 in)
1993
70.4 mm (2.8 in)
1994
93.2 mm (3.7 in)
1995
116.1 mm (4.6 in)
1996
28.2 mm (1.1 in)
1997
101.6 mm (4.0 in)
1998
165.4 mm (6.5 in)
1999
76.9 mm (3.0 in)
2000
78.8 mm (3.1 in)
2001
41.1 mm (1.6 in)
2002
99.0 mm (3.9 in)
2003
53.1 mm (2.1 in)
2004
72.6 mm (2.9 in)
2005
75.4 mm (3.0 in)
2006
67.2 mm (2.6 in)
2007
77.5 mm (3.1 in)
2008
71.4 mm (2.8 in)
2009
62.7 mm (2.5 in)
2010
83.4 mm (3.3 in)
2011
70.1 mm (2.8 in)
2012
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Fredericktown 4 S, 1939 to 2012. The record is 48 days in 1963, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Fredericktown 4 S by year
Year
Longest dry spell (CDD)
1939
15 days
1940
13 days
1941
15 days
1942
13 days
1943
26 days
1944
18 days
1945
24 days
1946
19 days
1947
10 days
1948
18 days
1949
16 days
1950
12 days
1951
16 days
1952
27 days
1953
21 days
1954
13 days
1955
18 days
1956
19 days
1957
23 days
1958
15 days
1959
24 days
1960
21 days
1961
12 days
1962
17 days
1963
48 days
1964
25 days
1965
14 days
1966
16 days
1967
25 days
1968
14 days
1969
13 days
1970
15 days
1971
11 days
1972
13 days
1973
14 days
1974
15 days
1975
15 days
1976
22 days
1977
12 days
1978
20 days
1979
11 days
1980
12 days
1981
25 days
1982
12 days
1983
21 days
1984
15 days
1985
20 days
1986
13 days
1987
24 days
1988
19 days
1989
10 days
1990
14 days
1991
21 days
1992
15 days
1993
20 days
1994
17 days
1995
6 days
1996
7 days
1997
11 days
1998
11 days
1999
21 days
2000
17 days
2001
17 days
2002
14 days
2003
13 days
2004
13 days
2005
12 days
2006
1 day
2007
16 days
2008
18 days
2009
18 days
2010
15 days
2011
1 day
2012
1 day
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
49 years with a frost
Across 49 years with a frost, the median last spring frost at Fredericktown 4 S falls on 7 May and the median first autumn frost on 2 October, which leaves a median of 147 days between them.
Fitted over all years, the growing season changes by +2.0 days per decade at this station.
Frost dates and growing season at Fredericktown 4 S
Measure
Median, all years
Earliest period
Recent period (1968 to 2011)
Recent against earliest
Fitted trend
Last spring frost
7 May
n/a
7 May
n/a
-0.5 days per decade
First autumn frost
2 October
n/a
5 October
n/a
+1.5 days per decade
Growing days
147 days
n/a
149 days
n/a
+2.0 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
47 years, 1940 to 1998
A day with at least 52.3 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 115.7 mm (4.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Fredericktown 4 S: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
52.3 mm (2.1 in)
5 years
66.9 mm (2.6 in)
10 years
77.5 mm (3.1 in)
25 years
91.9 mm (3.6 in)
50 years
103.5 mm (4.1 in)
Longer than the 47 years of record
100 years
115.7 mm (4.6 in)
Longer than the 47 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, 47 years of values from 1940 to 1998.
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: 122.4 mm (4.8 in) in 1979; 101.6 mm (4.0 in) in 1951; 87.6 mm (3.4 in) in 1945.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Fredericktown 4 S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fredericktown 4 S 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.