Record envelope, standing records and threshold days for Frederick (USC00343353), Oklahoma, United States, with 108 years of record.
Key Facts for Frederick
Frederick (USC00343353) is a weather station in Oklahoma, United States at 34.39 latitude and -99.02 longitude, 392 m (1,285 ft) above sea level.
The station reports from 1904 to 2011, 108 years of record.
1,464 records set at Frederick still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Frederick set a daily record precipitation of 51.1 mm (2.0 in) on 1 February 2011.
About the Station
Location: Oklahoma, United States, 34.39 latitude, -99.02 longitude.
Elevation: 392 m (1,285 ft).
Period of record: 1904 to 2011, 108 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 Frederick. 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 Frederick, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
32.2 C (90.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Feb
33.9 C (93.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Mar
40.0 C (104.0 F)
-16.1 C (3.0 F)
n/a
n/a
Apr
39.4 C (102.9 F)
-5.0 C (23.0 F)
n/a
n/a
May
43.9 C (111.0 F)
1.7 C (35.1 F)
n/a
n/a
Jun
46.1 C (115.0 F)
4.4 C (39.9 F)
n/a
n/a
Jul
45.6 C (114.1 F)
11.1 C (52.0 F)
n/a
n/a
Aug
47.2 C (117.0 F)
8.9 C (48.0 F)
n/a
n/a
Sep
43.9 C (111.0 F)
1.1 C (34.0 F)
n/a
n/a
Oct
40.0 C (104.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
33.9 C (93.0 F)
-12.8 C (9.0 F)
n/a
n/a
Dec
30.0 C (86.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Frederick still stand. 1911 holds the most, with 38.
Standing records at Frederick by the year they were set
Year set
Standing records
1904
9
1905
7
1907
9
1908
6
1909
10
1910
19
1911
38
1912
16
1913
14
1914
18
1915
18
1916
12
1917
22
1918
19
1919
18
1920
18
1921
14
1922
11
1923
15
1924
17
1925
16
1926
10
1927
13
1928
15
1929
22
1930
12
1931
14
1932
20
1933
8
1934
11
1935
16
1936
16
1937
13
1938
14
1939
21
1940
12
1941
5
1942
4
1943
25
1944
11
1945
11
1946
14
1947
22
1948
17
1949
11
1950
14
1951
28
1952
23
1953
26
1954
30
1955
19
1956
24
1957
11
1958
12
1959
16
1960
11
1961
6
1962
16
1963
17
1964
11
1965
19
1966
25
1967
14
1968
11
1969
11
1970
17
1971
15
1972
15
1973
7
1974
19
1975
7
1976
17
1977
6
1978
12
1979
15
1980
21
1981
9
1982
9
1983
24
1984
6
1985
17
1986
15
1987
8
1988
6
1989
24
1990
18
1991
13
1992
14
1993
12
1994
4
1995
16
1996
7
1997
13
1998
7
1999
5
2000
14
2001
9
2002
5
2003
10
2004
7
2005
9
2006
10
2007
6
2008
6
2009
3
All-Time Record Progression
8 new records
8 all-time records were set at Frederick between 8 April 1938 and 25 December 1983. Each dot is a new record.
When Frederick set new all-time records
Date
Kind
Detail
1938-04-08
Record snow depth
Record snow depth 20.3 cm (8.0 in)
1942-03-01
Record daily snowfall
Record daily snowfall 25.9 cm (10.2 in)
1942-03-01
Record snow depth
Record snow depth 25.4 cm (10.0 in)
1943-08-03
Record high maximum temperature
Record high maximum temperature 47.2 C (117.0 F)
1954-12-29
Record snow depth
Record snow depth 27.9 cm (11.0 in)
1969-09-22
Record daily precipitation
Record daily precipitation 149.9 mm (5.9 in)
1975-06-22
Record daily precipitation
Record daily precipitation 162.3 mm (6.4 in)
1983-12-25
Record low maximum temperature
Record low maximum temperature -13.9 C (7.0 F)
Wettest Day of Each Month
Jun: 162.3 mm (6.4 in)
The wettest day on record for each calendar month at Frederick. The most was 162.3 mm (6.4 in) on 22 June 1975.
Record daily precipitation for each month at Frederick
Month
Record daily precipitation (mm)
Date
Jan
51.6 mm (2.0 in)
8 January 1939
Feb
64.8 mm (2.6 in)
18 February 1911
Mar
72.4 mm (2.9 in)
30 March 1953
Apr
105.4 mm (4.1 in)
8 April 2008
May
125.7 mm (4.9 in)
8 May 1922
Jun
162.3 mm (6.4 in)
22 June 1975
Jul
87.6 mm (3.4 in)
20 July 1915
Aug
91.2 mm (3.6 in)
28 August 1977
Sep
149.9 mm (5.9 in)
22 September 1969
Oct
110.5 mm (4.4 in)
22 October 2000
Nov
58.4 mm (2.3 in)
27 November 1919
Dec
77.7 mm (3.1 in)
23 December 1932
Period of Record Coverage
1904 to 2010
Complete yearUnder 90 percent of days
107 years of record at Frederick, 1904 to 2010. 24 years have data for under 90 percent of days and are left out of rankings: 1904, 1905, 1906, 1907, 1908, 1909, 1916, 1924 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 80 complete years at Frederick, 1910 to 2006. Blue stripes are years cooler than the station's own mean of 17.3 C (63.1 F); red stripes are warmer. The coolest year was 1993, at 15.2 C (59.3 F), and the warmest was 1954, at 19.5 C (67.0 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Frederick as warming stripes, 1910 to 2006
Year
Annual mean temperature
Difference from the station mean
1910
17.7 C
+0.39 C
1911
18.1 C
+0.82 C
1912
16.0 C
-1.26 C
1913
16.8 C
-0.53 C
1914
17.3 C
0.00 C
1915
16.7 C
-0.58 C
1917
16.8 C
-0.46 C
1918
17.4 C
+0.13 C
1919
16.1 C
-1.18 C
1921
18.8 C
+1.47 C
1922
17.8 C
+0.45 C
1923
17.3 C
-0.01 C
1927
17.2 C
-0.09 C
1928
17.4 C
+0.06 C
1929
16.8 C
-0.52 C
1930
17.6 C
+0.29 C
1931
17.5 C
+0.23 C
1932
16.6 C
-0.74 C
1934
18.1 C
+0.81 C
1935
16.7 C
-0.64 C
1936
17.4 C
+0.11 C
1937
17.2 C
-0.08 C
1938
18.7 C
+1.36 C
1939
18.8 C
+1.51 C
1940
17.2 C
-0.14 C
1941
17.4 C
+0.05 C
1942
17.3 C
-0.04 C
1943
18.1 C
+0.82 C
1944
18.0 C
+0.66 C
1945
17.3 C
+0.03 C
1946
17.1 C
-0.19 C
1949
16.6 C
-0.68 C
1951
18.3 C
+1.01 C
1952
18.9 C
+1.60 C
1953
18.8 C
+1.52 C
1954
19.5 C
+2.17 C
1955
18.3 C
+0.99 C
1956
19.4 C
+2.14 C
1957
17.4 C
+0.12 C
1958
17.5 C
+0.21 C
1959
18.1 C
+0.79 C
1960
17.5 C
+0.22 C
1961
17.3 C
-0.04 C
1962
18.2 C
+0.89 C
1963
18.6 C
+1.31 C
1964
17.9 C
+0.64 C
1965
17.9 C
+0.59 C
1966
17.1 C
-0.17 C
1967
17.7 C
+0.38 C
1968
16.5 C
-0.83 C
1969
17.3 C
+0.04 C
1970
17.7 C
+0.36 C
1971
17.6 C
+0.31 C
1972
17.2 C
-0.09 C
1973
16.9 C
-0.38 C
1974
17.6 C
+0.32 C
1975
16.7 C
-0.56 C
1976
17.0 C
-0.32 C
1977
18.2 C
+0.94 C
1978
16.0 C
-1.33 C
1979
15.6 C
-1.73 C
1980
17.7 C
+0.44 C
1981
17.1 C
-0.21 C
1982
16.4 C
-0.95 C
1983
16.1 C
-1.23 C
1985
16.6 C
-0.66 C
1986
17.2 C
-0.06 C
1987
16.4 C
-0.86 C
1988
16.4 C
-0.93 C
1989
16.0 C
-1.26 C
1990
16.5 C
-0.79 C
1991
16.2 C
-1.07 C
1993
15.2 C
-2.11 C
1995
16.5 C
-0.79 C
1999
17.6 C
+0.26 C
2001
16.8 C
-0.48 C
2002
16.0 C
-1.31 C
2003
16.6 C
-0.70 C
2004
16.6 C
-0.69 C
2006
17.8 C
+0.52 C
The annual mean temperature here has fallen by 0.09 C (0.02 to 0.16) per decade over 1910 to 2006. In Fahrenheit: 0.17 F (0.04 to 0.29) per decade. The slope is a straight line fitted to 80 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Frederick
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.09 C (-0.16 to -0.02) per decade
-0.17 F (-0.29 to -0.04) per decade
1910 to 2006
80
Fall
Mean daily maximum
-0.14 C (-0.24 to -0.04) per decade
-0.3 F (-0.4 to -0.1) per decade
1910 to 2006
80
Fall
Mean daily minimum
-0.04 C (-0.10 to 0.01) per decade
-0.08 F (-0.18 to 0.02) per decade
1910 to 2006
80
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
1904 to 2011
Yearly extremes at Frederick: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
47.2 C (117.0 F)
1943
42.2 C (108.0 F)
107
Coldest night (TNn)
-22.2 C (-8.0 F)
1911
-13.3 C (8.1 F)
107
Wettest day (Rx1day)
162.3 mm (6.4 in)
1975
66.2 mm (2.6 in)
108
Wettest five days (Rx5day)
271.0 mm (10.7 in)
2000
101.0 mm (4.0 in)
107
Longest dry spell (CDD)
142 days
1905
38 days
108
Hottest day (TXx)
The hottest day of the year at Frederick, 1904 to 2011. The record is 47.2 C (117.0 F) in 1943, marked on the chart; the median year is 42.2 C (108.0 F).
Hottest day (TXx) at Frederick by year
Year
Hottest day (TXx)
1904
40.0 C (104.0 F)
1905
42.2 C (108.0 F)
1906
36.1 C (97.0 F)
1907
46.1 C (115.0 F)
1908
39.4 C (102.9 F)
1909
42.2 C (108.0 F)
1910
42.2 C (108.0 F)
1911
43.9 C (111.0 F)
1912
42.8 C (109.0 F)
1913
42.2 C (108.0 F)
1914
44.4 C (111.9 F)
1915
39.4 C (102.9 F)
1916
42.8 C (109.0 F)
1917
42.2 C (108.0 F)
1918
42.8 C (109.0 F)
1919
40.6 C (105.1 F)
1920
40.6 C (105.1 F)
1921
41.1 C (106.0 F)
1922
44.4 C (111.9 F)
1923
41.1 C (106.0 F)
1924
43.9 C (111.0 F)
1925
42.8 C (109.0 F)
1926
40.0 C (104.0 F)
1927
40.0 C (104.0 F)
1928
41.7 C (107.1 F)
1929
41.7 C (107.1 F)
1930
42.8 C (109.0 F)
1931
41.1 C (106.0 F)
1932
38.9 C (102.0 F)
1933
41.1 C (106.0 F)
1934
42.8 C (109.0 F)
1935
42.2 C (108.0 F)
1936
45.6 C (114.1 F)
1937
42.8 C (109.0 F)
1938
40.6 C (105.1 F)
1939
43.9 C (111.0 F)
1940
43.3 C (109.9 F)
1941
40.6 C (105.1 F)
1942
40.6 C (105.1 F)
1943
47.2 C (117.0 F)
1944
44.4 C (111.9 F)
1945
43.3 C (109.9 F)
1946
41.1 C (106.0 F)
1947
43.9 C (111.0 F)
1948
41.7 C (107.1 F)
1949
41.1 C (106.0 F)
1950
37.8 C (100.0 F)
1951
45.6 C (114.1 F)
1952
43.9 C (111.0 F)
1953
45.6 C (114.1 F)
1954
45.0 C (113.0 F)
1955
41.1 C (106.0 F)
1956
43.9 C (111.0 F)
1957
42.8 C (109.0 F)
1958
44.4 C (111.9 F)
1959
42.2 C (108.0 F)
1960
42.8 C (109.0 F)
1961
41.1 C (106.0 F)
1962
44.4 C (111.9 F)
1963
43.3 C (109.9 F)
1964
46.1 C (115.0 F)
1965
41.7 C (107.1 F)
1966
43.9 C (111.0 F)
1967
41.7 C (107.1 F)
1968
40.6 C (105.1 F)
1969
45.6 C (114.1 F)
1970
45.6 C (114.1 F)
1971
42.2 C (108.0 F)
1972
43.9 C (111.0 F)
1973
40.6 C (105.1 F)
1974
43.9 C (111.0 F)
1975
37.8 C (100.0 F)
1976
41.7 C (107.1 F)
1977
41.1 C (106.0 F)
1978
42.8 C (109.0 F)
1979
40.0 C (104.0 F)
1980
45.0 C (113.0 F)
1981
43.3 C (109.9 F)
1982
41.7 C (107.1 F)
1983
42.2 C (108.0 F)
1984
42.8 C (109.0 F)
1985
42.2 C (108.0 F)
1986
42.8 C (109.0 F)
1987
38.3 C (100.9 F)
1988
43.3 C (109.9 F)
1989
42.2 C (108.0 F)
1990
40.0 C (104.0 F)
1991
38.9 C (102.0 F)
1992
38.3 C (100.9 F)
1993
39.4 C (102.9 F)
1994
46.1 C (115.0 F)
1995
41.7 C (107.1 F)
1996
45.6 C (114.1 F)
1997
38.9 C (102.0 F)
1998
43.3 C (109.9 F)
1999
42.2 C (108.0 F)
2000
43.9 C (111.0 F)
2001
42.2 C (108.0 F)
2002
39.4 C (102.9 F)
2003
42.2 C (108.0 F)
2004
39.4 C (102.9 F)
2005
40.0 C (104.0 F)
2006
42.2 C (108.0 F)
2007
38.3 C (100.9 F)
2008
41.1 C (106.0 F)
2009
41.1 C (106.0 F)
2010
36.1 C (97.0 F)
2011
n/a
Coldest night (TNn)
The coldest night of the year at Frederick, 1904 to 2011. The record is -22.2 C (-8.0 F) in 1911, marked on the chart; the median year is -13.3 C (8.1 F).
Coldest night (TNn) at Frederick by year
Year
Coldest night (TNn)
1904
-11.1 C (12.0 F)
1905
-17.2 C (1.0 F)
1906
-6.1 C (21.0 F)
1907
-10.0 C (14.0 F)
1908
-6.7 C (19.9 F)
1909
-17.8 C (0.0 F)
1910
-12.8 C (9.0 F)
1911
-22.2 C (-8.0 F)
1912
-20.0 C (-4.0 F)
1913
-18.3 C (-0.9 F)
1914
-15.6 C (3.9 F)
1915
-8.3 C (17.1 F)
1916
-16.7 C (1.9 F)
1917
-14.4 C (6.1 F)
1918
-18.9 C (-2.0 F)
1919
-15.0 C (5.0 F)
1920
-11.7 C (10.9 F)
1921
-11.7 C (10.9 F)
1922
-13.3 C (8.1 F)
1923
-12.2 C (10.0 F)
1924
-17.8 C (0.0 F)
1925
-12.2 C (10.0 F)
1926
-12.2 C (10.0 F)
1927
-13.9 C (7.0 F)
1928
-15.6 C (3.9 F)
1929
-16.7 C (1.9 F)
1930
-21.7 C (-7.1 F)
1931
-9.4 C (15.1 F)
1932
-13.3 C (8.1 F)
1933
-20.6 C (-5.1 F)
1934
-11.7 C (10.9 F)
1935
-17.8 C (0.0 F)
1936
-16.1 C (3.0 F)
1937
-12.2 C (10.0 F)
1938
-12.2 C (10.0 F)
1939
-11.7 C (10.9 F)
1940
-15.6 C (3.9 F)
1941
-5.0 C (23.0 F)
1942
-19.4 C (-2.9 F)
1943
-17.8 C (0.0 F)
1944
-13.9 C (7.0 F)
1945
-11.7 C (10.9 F)
1946
-11.1 C (12.0 F)
1947
-21.7 C (-7.1 F)
1948
-16.1 C (3.0 F)
1949
-12.2 C (10.0 F)
1950
-13.9 C (7.0 F)
1951
-20.0 C (-4.0 F)
1952
-6.7 C (19.9 F)
1953
-11.7 C (10.9 F)
1954
-13.9 C (7.0 F)
1955
-8.9 C (16.0 F)
1956
-8.3 C (17.1 F)
1957
-9.4 C (15.1 F)
1958
-11.7 C (10.9 F)
1959
-16.7 C (1.9 F)
1960
-13.3 C (8.1 F)
1961
-12.2 C (10.0 F)
1962
-17.8 C (0.0 F)
1963
-16.7 C (1.9 F)
1964
-13.3 C (8.1 F)
1965
-12.2 C (10.0 F)
1966
-20.0 C (-4.0 F)
1967
-12.2 C (10.0 F)
1968
-15.6 C (3.9 F)
1969
-10.6 C (12.9 F)
1970
-11.7 C (10.9 F)
1971
-15.6 C (3.9 F)
1972
-15.0 C (5.0 F)
1973
-16.7 C (1.9 F)
1974
-13.3 C (8.1 F)
1975
-12.2 C (10.0 F)
1976
-14.4 C (6.1 F)
1977
-16.7 C (1.9 F)
1978
-15.6 C (3.9 F)
1979
-15.6 C (3.9 F)
1980
-13.9 C (7.0 F)
1981
-15.6 C (3.9 F)
1982
-17.2 C (1.0 F)
1983
-18.3 C (-0.9 F)
1984
-6.7 C (19.9 F)
1985
-15.0 C (5.0 F)
1986
-17.8 C (0.0 F)
1987
-12.2 C (10.0 F)
1988
-17.2 C (1.0 F)
1989
-18.9 C (-2.0 F)
1990
-16.1 C (3.0 F)
1991
-8.3 C (17.1 F)
1992
-7.8 C (18.0 F)
1993
-10.6 C (12.9 F)
1994
-13.3 C (8.1 F)
1995
-10.0 C (14.0 F)
1996
-12.8 C (9.0 F)
1997
-11.1 C (12.0 F)
1998
-12.2 C (10.0 F)
1999
-8.9 C (16.0 F)
2000
-8.9 C (16.0 F)
2001
-8.3 C (17.1 F)
2002
-11.7 C (10.9 F)
2003
-11.1 C (12.0 F)
2004
-13.9 C (7.0 F)
2005
-14.4 C (6.1 F)
2006
-12.2 C (10.0 F)
2007
-11.7 C (10.9 F)
2008
-12.2 C (10.0 F)
2009
-12.2 C (10.0 F)
2010
-12.8 C (9.0 F)
2011
n/a
Wettest day (Rx1day)
The wettest day of the year at Frederick, 1904 to 2011. The record is 162.3 mm (6.4 in) in 1975, marked on the chart; the median year is 66.2 mm (2.6 in).
Wettest day (Rx1day) at Frederick by year
Year
Wettest day (Rx1day)
1904
58.4 mm (2.3 in)
1905
66.0 mm (2.6 in)
1906
57.2 mm (2.3 in)
1907
101.6 mm (4.0 in)
1908
106.7 mm (4.2 in)
1909
49.5 mm (1.9 in)
1910
39.1 mm (1.5 in)
1911
76.2 mm (3.0 in)
1912
58.2 mm (2.3 in)
1913
66.5 mm (2.6 in)
1914
47.0 mm (1.9 in)
1915
87.6 mm (3.4 in)
1916
37.1 mm (1.5 in)
1917
32.8 mm (1.3 in)
1918
93.0 mm (3.7 in)
1919
90.4 mm (3.6 in)
1920
96.5 mm (3.8 in)
1921
53.3 mm (2.1 in)
1922
125.7 mm (4.9 in)
1923
58.4 mm (2.3 in)
1924
69.9 mm (2.8 in)
1925
59.9 mm (2.4 in)
1926
59.2 mm (2.3 in)
1927
66.0 mm (2.6 in)
1928
36.8 mm (1.4 in)
1929
92.7 mm (3.6 in)
1930
65.0 mm (2.6 in)
1931
48.3 mm (1.9 in)
1932
77.7 mm (3.1 in)
1933
45.5 mm (1.8 in)
1934
50.8 mm (2.0 in)
1935
76.2 mm (3.0 in)
1936
49.5 mm (1.9 in)
1937
48.3 mm (1.9 in)
1938
64.3 mm (2.5 in)
1939
68.6 mm (2.7 in)
1940
37.6 mm (1.5 in)
1941
70.6 mm (2.8 in)
1942
66.0 mm (2.6 in)
1943
31.2 mm (1.2 in)
1944
45.7 mm (1.8 in)
1945
68.6 mm (2.7 in)
1946
58.4 mm (2.3 in)
1947
76.2 mm (3.0 in)
1948
66.0 mm (2.6 in)
1949
48.3 mm (1.9 in)
1950
63.5 mm (2.5 in)
1951
94.2 mm (3.7 in)
1952
73.9 mm (2.9 in)
1953
72.4 mm (2.9 in)
1954
52.6 mm (2.1 in)
1955
103.1 mm (4.1 in)
1956
72.6 mm (2.9 in)
1957
81.8 mm (3.2 in)
1958
45.7 mm (1.8 in)
1959
57.2 mm (2.3 in)
1960
65.3 mm (2.6 in)
1961
70.1 mm (2.8 in)
1962
67.8 mm (2.7 in)
1963
81.5 mm (3.2 in)
1964
49.3 mm (1.9 in)
1965
83.3 mm (3.3 in)
1966
73.7 mm (2.9 in)
1967
47.0 mm (1.9 in)
1968
50.8 mm (2.0 in)
1969
149.9 mm (5.9 in)
1970
66.3 mm (2.6 in)
1971
66.3 mm (2.6 in)
1972
50.5 mm (2.0 in)
1973
68.6 mm (2.7 in)
1974
93.5 mm (3.7 in)
1975
162.3 mm (6.4 in)
1976
75.4 mm (3.0 in)
1977
91.2 mm (3.6 in)
1978
88.6 mm (3.5 in)
1979
61.5 mm (2.4 in)
1980
59.4 mm (2.3 in)
1981
82.6 mm (3.3 in)
1982
66.8 mm (2.6 in)
1983
104.1 mm (4.1 in)
1984
50.8 mm (2.0 in)
1985
101.6 mm (4.0 in)
1986
86.4 mm (3.4 in)
1987
76.2 mm (3.0 in)
1988
96.5 mm (3.8 in)
1989
58.4 mm (2.3 in)
1990
58.4 mm (2.3 in)
1991
73.2 mm (2.9 in)
1992
63.5 mm (2.5 in)
1993
59.7 mm (2.4 in)
1994
55.9 mm (2.2 in)
1995
75.4 mm (3.0 in)
1996
50.0 mm (2.0 in)
1997
68.6 mm (2.7 in)
1998
70.4 mm (2.8 in)
1999
53.8 mm (2.1 in)
2000
110.5 mm (4.4 in)
2001
72.4 mm (2.9 in)
2002
51.8 mm (2.0 in)
2003
44.5 mm (1.8 in)
2004
68.8 mm (2.7 in)
2005
65.0 mm (2.6 in)
2006
73.7 mm (2.9 in)
2007
56.9 mm (2.2 in)
2008
105.4 mm (4.1 in)
2009
88.1 mm (3.5 in)
2010
66.0 mm (2.6 in)
2011
51.1 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Frederick, 1904 to 2011. The record is 271.0 mm (10.7 in) in 2000, marked on the chart; the median year is 101.0 mm (4.0 in).
Wettest five days (Rx5day) at Frederick by year
Year
Wettest five days (Rx5day)
1904
94.0 mm (3.7 in)
1905
76.2 mm (3.0 in)
1906
57.2 mm (2.3 in)
1907
108.0 mm (4.3 in)
1908
160.0 mm (6.3 in)
1909
141.2 mm (5.6 in)
1910
41.6 mm (1.6 in)
1911
104.5 mm (4.1 in)
1912
90.2 mm (3.6 in)
1913
122.4 mm (4.8 in)
1914
106.2 mm (4.2 in)
1915
104.1 mm (4.1 in)
1916
74.4 mm (2.9 in)
1917
40.9 mm (1.6 in)
1918
152.2 mm (6.0 in)
1919
210.8 mm (8.3 in)
1920
141.2 mm (5.6 in)
1921
97.8 mm (3.9 in)
1922
158.7 mm (6.2 in)
1923
128.6 mm (5.1 in)
1924
87.6 mm (3.4 in)
1925
155.9 mm (6.1 in)
1926
102.9 mm (4.1 in)
1927
124.2 mm (4.9 in)
1928
93.0 mm (3.7 in)
1929
100.3 mm (3.9 in)
1930
106.2 mm (4.2 in)
1931
127.5 mm (5.0 in)
1932
96.2 mm (3.8 in)
1933
45.5 mm (1.8 in)
1934
76.9 mm (3.0 in)
1935
84.3 mm (3.3 in)
1936
106.6 mm (4.2 in)
1937
96.1 mm (3.8 in)
1938
93.8 mm (3.7 in)
1939
104.2 mm (4.1 in)
1940
52.1 mm (2.1 in)
1941
105.8 mm (4.2 in)
1942
88.9 mm (3.5 in)
1943
70.1 mm (2.8 in)
1944
79.2 mm (3.1 in)
1945
122.0 mm (4.8 in)
1946
99.3 mm (3.9 in)
1947
133.6 mm (5.3 in)
1948
109.3 mm (4.3 in)
1949
85.5 mm (3.4 in)
1950
101.0 mm (4.0 in)
1951
151.1 mm (5.9 in)
1952
120.9 mm (4.8 in)
1953
72.4 mm (2.9 in)
1954
105.0 mm (4.1 in)
1955
168.1 mm (6.6 in)
1956
99.1 mm (3.9 in)
1957
106.4 mm (4.2 in)
1958
95.5 mm (3.8 in)
1959
84.3 mm (3.3 in)
1960
139.2 mm (5.5 in)
1961
70.9 mm (2.8 in)
1962
88.6 mm (3.5 in)
1963
125.7 mm (4.9 in)
1964
74.9 mm (2.9 in)
1965
83.3 mm (3.3 in)
1966
115.9 mm (4.6 in)
1967
93.9 mm (3.7 in)
1968
76.8 mm (3.0 in)
1969
161.3 mm (6.4 in)
1970
67.1 mm (2.6 in)
1971
80.7 mm (3.2 in)
1972
86.7 mm (3.4 in)
1973
84.3 mm (3.3 in)
1974
126.1 mm (5.0 in)
1975
162.6 mm (6.4 in)
1976
124.1 mm (4.9 in)
1977
97.0 mm (3.8 in)
1978
96.0 mm (3.8 in)
1979
75.3 mm (3.0 in)
1980
85.6 mm (3.4 in)
1981
152.9 mm (6.0 in)
1982
92.7 mm (3.6 in)
1983
252.5 mm (9.9 in)
1984
60.6 mm (2.4 in)
1985
130.3 mm (5.1 in)
1986
179.6 mm (7.1 in)
1987
160.5 mm (6.3 in)
1988
104.4 mm (4.1 in)
1989
107.2 mm (4.2 in)
1990
112.2 mm (4.4 in)
1991
138.7 mm (5.5 in)
1992
105.0 mm (4.1 in)
1993
99.0 mm (3.9 in)
1994
61.7 mm (2.4 in)
1995
111.8 mm (4.4 in)
1996
77.6 mm (3.1 in)
1997
75.7 mm (3.0 in)
1998
96.6 mm (3.8 in)
1999
130.6 mm (5.1 in)
2000
271.0 mm (10.7 in)
2001
55.2 mm (2.2 in)
2002
80.0 mm (3.1 in)
2003
74.2 mm (2.9 in)
2004
107.9 mm (4.2 in)
2005
84.8 mm (3.3 in)
2006
136.7 mm (5.4 in)
2007
188.6 mm (7.4 in)
2008
105.4 mm (4.1 in)
2009
175.2 mm (6.9 in)
2010
66.0 mm (2.6 in)
2011
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Frederick, 1904 to 2011. The record is 142 days in 1905, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Frederick by year
Year
Longest dry spell (CDD)
1904
68 days
1905
142 days
1906
141 days
1907
104 days
1908
44 days
1909
24 days
1910
53 days
1911
38 days
1912
42 days
1913
38 days
1914
48 days
1915
35 days
1916
52 days
1917
38 days
1918
24 days
1919
27 days
1920
40 days
1921
72 days
1922
43 days
1923
28 days
1924
27 days
1925
38 days
1926
37 days
1927
41 days
1928
23 days
1929
52 days
1930
52 days
1931
40 days
1932
35 days
1933
31 days
1934
51 days
1935
27 days
1936
76 days
1937
31 days
1938
42 days
1939
42 days
1940
46 days
1941
19 days
1942
40 days
1943
65 days
1944
25 days
1945
33 days
1946
37 days
1947
32 days
1948
62 days
1949
37 days
1950
71 days
1951
38 days
1952
71 days
1953
30 days
1954
44 days
1955
56 days
1956
46 days
1957
33 days
1958
32 days
1959
54 days
1960
41 days
1961
27 days
1962
31 days
1963
33 days
1964
31 days
1965
44 days
1966
27 days
1967
42 days
1968
29 days
1969
33 days
1970
45 days
1971
46 days
1972
40 days
1973
27 days
1974
31 days
1975
31 days
1976
35 days
1977
52 days
1978
34 days
1979
47 days
1980
81 days
1981
19 days
1982
29 days
1983
38 days
1984
23 days
1985
25 days
1986
33 days
1987
56 days
1988
22 days
1989
59 days
1990
36 days
1991
56 days
1992
50 days
1993
22 days
1994
28 days
1995
37 days
1996
31 days
1997
36 days
1998
42 days
1999
33 days
2000
56 days
2001
56 days
2002
26 days
2003
27 days
2004
25 days
2005
45 days
2006
31 days
2007
39 days
2008
35 days
2009
27 days
2010
31 days
2011
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
80 years with a frost
Across 80 years with a frost, the median last spring frost at Frederick falls on 30 March and the median first autumn frost on 7 November, which leaves a median of 223 days between them.
In 1969 to 2006 the median growing season was 224 days. That is 1 day more than in 1910 to 1945.
Fitted over all years, the growing season changes by +1.6 days per decade at this station.
Frost dates and growing season at Frederick
Measure
Median, all years
Earliest period (1910 to 1945)
Recent period (1969 to 2006)
Recent against earliest
Fitted trend
Last spring frost
30 March
31 March
28 March
3 days earlier
-0.9 days per decade
First autumn frost
7 November
6 November
9 November
3 days later
+0.6 days per decade
Growing days
223 days
223 days
224 days
1 day more
+1.6 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
94 years, 1905 to 2006
A day with at least 65.3 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 137.6 mm (5.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Frederick: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
65.3 mm (2.6 in)
5 years
84.5 mm (3.3 in)
10 years
97.2 mm (3.8 in)
25 years
113.5 mm (4.5 in)
50 years
125.6 mm (4.9 in)
100 years
137.6 mm (5.4 in)
Longer than the 94 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, 94 years of values from 1905 to 2006.
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: 162.3 mm (6.4 in) in 1975; 149.9 mm (5.9 in) in 1969; 125.7 mm (4.9 in) in 1922.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Frederick, at 1967. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1967 ran 0.4 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Frederick, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1967
-0.4
-0.6
likely
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.
Download the Data
Data for Frederick standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Frederick 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.