Record envelope, standing records and threshold days for Oak Hill (USC00466591), West Virginia, United States, with 72 years of record.
Key Facts for Oak Hill
Oak Hill (USC00466591) is a weather station in West Virginia, United States at 37.97 latitude and -81.15 longitude, 622 m (2,040 ft) above sea level.
The station reports from 1941 to 2012, 72 years of record.
1,464 records set at Oak Hill still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Oak Hill set a daily record high minimum temperature of 11.1 C (52.0 F) on 12 November 2012.
About the Station
Location: West Virginia, United States, 37.97 latitude, -81.15 longitude.
Elevation: 622 m (2,040 ft).
Period of record: 1941 to 2012, 72 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 Oak Hill. 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 Oak Hill, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.3 C (73.9 F)
-28.9 C (-20.0 F)
n/a
n/a
Feb
24.4 C (75.9 F)
-23.9 C (-11.0 F)
n/a
n/a
Mar
30.0 C (86.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-10.6 C (12.9 F)
n/a
n/a
May
33.3 C (91.9 F)
-4.4 C (24.1 F)
n/a
n/a
Jun
35.0 C (95.0 F)
0.6 C (33.1 F)
n/a
n/a
Jul
37.2 C (99.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
36.7 C (98.1 F)
3.9 C (39.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-10.6 C (12.9 F)
n/a
n/a
Nov
29.4 C (84.9 F)
-17.8 C (0.0 F)
n/a
n/a
Dec
26.1 C (79.0 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 Oak Hill still stand. 1949 holds the most, with 39.
Standing records at Oak Hill by the year they were set
Year set
Standing records
1941
1
1942
21
1943
33
1944
19
1945
28
1946
15
1947
29
1948
17
1949
39
1950
16
1951
27
1952
28
1953
38
1954
34
1955
37
1956
24
1957
22
1958
21
1959
30
1960
22
1961
17
1962
34
1963
37
1964
29
1965
12
1966
15
1967
23
1968
21
1969
10
1970
25
1971
17
1972
32
1973
17
1974
17
1975
10
1976
24
1977
27
1978
7
1979
20
1980
13
1981
6
1982
27
1983
24
1984
29
1985
24
1986
29
1987
11
1988
18
1989
24
1990
19
1991
27
1992
14
1993
17
1994
10
1995
12
1996
18
1997
13
1998
13
1999
14
2000
15
2001
21
2002
27
2003
8
2004
14
2005
17
2006
14
2007
20
2008
12
2009
13
2010
13
2011
11
2012
22
All-Time Record Progression
5 new records
5 all-time records were set at Oak Hill between 17 January 1977 and 14 March 1993. Each dot is a new record.
When Oak Hill set new all-time records
Date
Kind
Detail
1977-01-17
Record low minimum temperature
Record low minimum temperature -27.2 C (-17.0 F)
1982-01-11
Record low maximum temperature
Record low maximum temperature -17.8 C (0.0 F)
1985-01-21
Record low maximum temperature
Record low maximum temperature -20.0 C (-4.0 F)
1985-01-21
Record low minimum temperature
Record low minimum temperature -28.9 C (-20.0 F)
1993-03-14
Record snow depth
Record snow depth 61.0 cm (24.0 in)
Wettest Day of Each Month
Sep: 101.6 mm (4.0 in)
The wettest day on record for each calendar month at Oak Hill. The most was 101.6 mm (4.0 in) on 2 September 1950.
Record daily precipitation for each month at Oak Hill
Month
Record daily precipitation (mm)
Date
Jan
68.1 mm (2.7 in)
28 January 1998
Feb
38.6 mm (1.5 in)
27 February 1962
Mar
74.9 mm (2.9 in)
13 March 2010
Apr
52.1 mm (2.1 in)
5 April 1977
May
51.6 mm (2.0 in)
7 May 1989
Jun
73.7 mm (2.9 in)
17 June 1949
Jul
93.2 mm (3.7 in)
9 July 2001
Aug
69.9 mm (2.8 in)
5 August 1942
Sep
101.6 mm (4.0 in)
2 September 1950
Oct
99.1 mm (3.9 in)
16 October 1954
Nov
53.3 mm (2.1 in)
5 November 1985
Dec
78.2 mm (3.1 in)
21 December 2009
Period of Record Coverage
1941 to 2012
Complete yearUnder 90 percent of days
72 years of record at Oak Hill, 1941 to 2012. 6 years have data for under 90 percent of days and are left out of rankings: 1941, 1946, 1950, 2007, 2011, 2012.
Cooler than the station meanWarmer than the station mean
One stripe for each of 59 complete years at Oak Hill, 1942 to 2010. Blue stripes are years cooler than the station's own mean of 10.9 C (51.6 F); red stripes are warmer. The coolest year was 1958, at 9.5 C (49.1 F), and the warmest was 1990, at 12.2 C (54.0 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Oak Hill as warming stripes, 1942 to 2010
Year
Annual mean temperature
Difference from the station mean
1942
11.1 C
+0.16 C
1943
10.4 C
-0.49 C
1944
10.7 C
-0.24 C
1945
11.0 C
+0.12 C
1947
10.8 C
-0.10 C
1948
11.4 C
+0.49 C
1951
10.3 C
-0.55 C
1952
10.9 C
-0.02 C
1953
11.6 C
+0.66 C
1954
11.3 C
+0.38 C
1955
10.3 C
-0.57 C
1956
10.5 C
-0.36 C
1957
11.4 C
+0.50 C
1958
9.5 C
-1.39 C
1959
11.1 C
+0.24 C
1961
11.0 C
+0.09 C
1962
10.9 C
0.00 C
1963
9.9 C
-1.00 C
1964
11.2 C
+0.28 C
1965
11.4 C
+0.51 C
1966
10.2 C
-0.67 C
1967
10.0 C
-0.92 C
1968
10.3 C
-0.58 C
1969
10.1 C
-0.76 C
1970
11.1 C
+0.25 C
1971
11.1 C
+0.18 C
1972
10.6 C
-0.34 C
1975
11.3 C
+0.44 C
1977
11.0 C
+0.10 C
1978
10.6 C
-0.30 C
1979
10.5 C
-0.43 C
1980
10.7 C
-0.18 C
1981
10.8 C
-0.06 C
1982
11.0 C
+0.09 C
1983
10.6 C
-0.27 C
1985
10.8 C
-0.05 C
1986
11.3 C
+0.44 C
1987
11.2 C
+0.35 C
1988
10.5 C
-0.36 C
1989
10.5 C
-0.35 C
1990
12.2 C
+1.35 C
1991
12.1 C
+1.21 C
1992
10.6 C
-0.31 C
1993
10.9 C
-0.03 C
1994
11.0 C
+0.10 C
1995
10.7 C
-0.18 C
1996
10.0 C
-0.90 C
1997
10.4 C
-0.54 C
1999
11.7 C
+0.82 C
2000
10.9 C
+0.05 C
2001
11.6 C
+0.66 C
2002
11.8 C
+0.91 C
2003
10.9 C
+0.04 C
2004
11.5 C
+0.65 C
2005
11.5 C
+0.57 C
2006
11.5 C
+0.60 C
2008
10.9 C
-0.03 C
2009
10.7 C
-0.19 C
2010
11.0 C
+0.10 C
The fitted trend in annual mean temperature here over 1942 to 2010 is 0.07 C (0.00 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.12 F (0.00 to 0.24) 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 Oak Hill
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.07 C (0.00 to 0.14) per decade
0.12 F (0.00 to 0.24) per decade
1942 to 2010
59
Not clearly different from zero
Mean daily maximum
-0.12 C (-0.21 to -0.03) per decade
-0.2 F (-0.4 to -0.1) per decade
1942 to 2010
59
Fall
Mean daily minimum
0.3 C (0.2 to 0.3) per decade
0.5 F (0.3 to 0.6) per decade
1942 to 2010
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
1941 to 2012
Yearly extremes at Oak Hill: 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)
1954
32.8 C (91.0 F)
72
Coldest night (TNn)
-28.9 C (-20.0 F)
1985
-18.9 C (-2.0 F)
72
Wettest day (Rx1day)
101.6 mm (4.0 in)
1950
52.6 mm (2.1 in)
72
Wettest five days (Rx5day)
183.9 mm (7.2 in)
1964
87.1 mm (3.4 in)
72
Longest dry spell (CDD)
27 days
1963
14 days
72
Hottest day (TXx)
The hottest day of the year at Oak Hill, 1941 to 2012. The record is 37.2 C (99.0 F) in 1954, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Oak Hill by year
Year
Hottest day (TXx)
1941
24.4 C (75.9 F)
1942
33.3 C (91.9 F)
1943
32.2 C (90.0 F)
1944
33.3 C (91.9 F)
1945
33.9 C (93.0 F)
1946
35.0 C (95.0 F)
1947
32.2 C (90.0 F)
1948
33.9 C (93.0 F)
1949
32.8 C (91.0 F)
1950
31.1 C (88.0 F)
1951
33.3 C (91.9 F)
1952
35.0 C (95.0 F)
1953
36.7 C (98.1 F)
1954
37.2 C (99.0 F)
1955
34.4 C (93.9 F)
1956
33.3 C (91.9 F)
1957
34.4 C (93.9 F)
1958
32.2 C (90.0 F)
1959
35.0 C (95.0 F)
1960
32.2 C (90.0 F)
1961
32.2 C (90.0 F)
1962
33.9 C (93.0 F)
1963
33.3 C (91.9 F)
1964
34.4 C (93.9 F)
1965
33.9 C (93.0 F)
1966
33.9 C (93.0 F)
1967
30.6 C (87.1 F)
1968
33.9 C (93.0 F)
1969
35.0 C (95.0 F)
1970
33.9 C (93.0 F)
1971
32.8 C (91.0 F)
1972
33.3 C (91.9 F)
1973
33.3 C (91.9 F)
1974
32.2 C (90.0 F)
1975
31.7 C (89.1 F)
1976
32.2 C (90.0 F)
1977
33.9 C (93.0 F)
1978
33.9 C (93.0 F)
1979
32.2 C (90.0 F)
1980
35.0 C (95.0 F)
1981
31.7 C (89.1 F)
1982
31.1 C (88.0 F)
1983
34.4 C (93.9 F)
1984
32.2 C (90.0 F)
1985
32.8 C (91.0 F)
1986
31.1 C (88.0 F)
1987
33.9 C (93.0 F)
1988
34.4 C (93.9 F)
1989
31.1 C (88.0 F)
1990
31.7 C (89.1 F)
1991
32.2 C (90.0 F)
1992
30.6 C (87.1 F)
1993
32.8 C (91.0 F)
1994
32.2 C (90.0 F)
1995
32.2 C (90.0 F)
1996
31.1 C (88.0 F)
1997
31.1 C (88.0 F)
1998
33.3 C (91.9 F)
1999
33.9 C (93.0 F)
2000
30.6 C (87.1 F)
2001
31.1 C (88.0 F)
2002
32.8 C (91.0 F)
2003
30.6 C (87.1 F)
2004
30.6 C (87.1 F)
2005
32.2 C (90.0 F)
2006
32.8 C (91.0 F)
2007
36.7 C (98.1 F)
2008
31.7 C (89.1 F)
2009
30.6 C (87.1 F)
2010
32.8 C (91.0 F)
2011
33.9 C (93.0 F)
2012
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Oak Hill, 1941 to 2012. The record is -28.9 C (-20.0 F) in 1985, marked on the chart; the median year is -18.9 C (-2.0 F).
Coldest night (TNn) at Oak Hill by year
Year
Coldest night (TNn)
1941
-10.0 C (14.0 F)
1942
-20.6 C (-5.1 F)
1943
-20.6 C (-5.1 F)
1944
-17.2 C (1.0 F)
1945
-18.3 C (-0.9 F)
1946
-15.6 C (3.9 F)
1947
-15.6 C (3.9 F)
1948
-17.2 C (1.0 F)
1949
-14.4 C (6.1 F)
1950
-17.8 C (0.0 F)
1951
-20.6 C (-5.1 F)
1952
-16.1 C (3.0 F)
1953
-18.3 C (-0.9 F)
1954
-16.1 C (3.0 F)
1955
-21.1 C (-6.0 F)
1956
-15.6 C (3.9 F)
1957
-23.3 C (-9.9 F)
1958
-21.1 C (-6.0 F)
1959
-20.6 C (-5.1 F)
1960
-21.7 C (-7.1 F)
1961
-23.3 C (-9.9 F)
1962
-23.3 C (-9.9 F)
1963
-26.1 C (-15.0 F)
1964
-18.9 C (-2.0 F)
1965
-20.0 C (-4.0 F)
1966
-21.7 C (-7.1 F)
1967
-21.1 C (-6.0 F)
1968
-20.6 C (-5.1 F)
1969
-18.3 C (-0.9 F)
1970
-23.3 C (-9.9 F)
1971
-20.6 C (-5.1 F)
1972
-25.0 C (-13.0 F)
1973
-18.3 C (-0.9 F)
1974
-12.8 C (9.0 F)
1975
-16.1 C (3.0 F)
1976
-21.1 C (-6.0 F)
1977
-27.2 C (-17.0 F)
1978
-22.2 C (-8.0 F)
1979
-18.3 C (-0.9 F)
1980
-18.3 C (-0.9 F)
1981
-21.1 C (-6.0 F)
1982
-26.1 C (-15.0 F)
1983
-26.1 C (-15.0 F)
1984
-23.3 C (-9.9 F)
1985
-28.9 C (-20.0 F)
1986
-21.1 C (-6.0 F)
1987
-18.9 C (-2.0 F)
1988
-18.3 C (-0.9 F)
1989
-25.0 C (-13.0 F)
1990
-16.1 C (3.0 F)
1991
-16.7 C (1.9 F)
1992
-16.7 C (1.9 F)
1993
-16.7 C (1.9 F)
1994
-27.8 C (-18.0 F)
1995
-17.8 C (0.0 F)
1996
-23.9 C (-11.0 F)
1997
-18.3 C (-0.9 F)
1998
-12.2 C (10.0 F)
1999
-13.3 C (8.1 F)
2000
-19.4 C (-2.9 F)
2001
-11.7 C (10.9 F)
2002
-13.9 C (7.0 F)
2003
-17.8 C (0.0 F)
2004
-20.0 C (-4.0 F)
2005
-18.9 C (-2.0 F)
2006
-17.2 C (1.0 F)
2007
-19.4 C (-2.9 F)
2008
-15.6 C (3.9 F)
2009
-20.0 C (-4.0 F)
2010
-15.6 C (3.9 F)
2011
-13.9 C (7.0 F)
2012
-12.2 C (10.0 F)
Wettest day (Rx1day)
The wettest day of the year at Oak Hill, 1941 to 2012. The record is 101.6 mm (4.0 in) in 1950, marked on the chart; the median year is 52.6 mm (2.1 in).
Wettest day (Rx1day) at Oak Hill by year
Year
Wettest day (Rx1day)
1941
21.6 mm (0.9 in)
1942
69.9 mm (2.8 in)
1943
32.0 mm (1.3 in)
1944
50.8 mm (2.0 in)
1945
65.8 mm (2.6 in)
1946
26.7 mm (1.1 in)
1947
59.7 mm (2.4 in)
1948
58.7 mm (2.3 in)
1949
73.7 mm (2.9 in)
1950
101.6 mm (4.0 in)
1951
59.7 mm (2.4 in)
1952
41.7 mm (1.6 in)
1953
74.9 mm (2.9 in)
1954
99.1 mm (3.9 in)
1955
65.0 mm (2.6 in)
1956
48.8 mm (1.9 in)
1957
63.5 mm (2.5 in)
1958
43.7 mm (1.7 in)
1959
48.3 mm (1.9 in)
1960
36.8 mm (1.4 in)
1961
38.6 mm (1.5 in)
1962
49.5 mm (1.9 in)
1963
52.6 mm (2.1 in)
1964
100.3 mm (3.9 in)
1965
36.1 mm (1.4 in)
1966
80.0 mm (3.1 in)
1967
60.2 mm (2.4 in)
1968
47.5 mm (1.9 in)
1969
65.0 mm (2.6 in)
1970
46.0 mm (1.8 in)
1971
52.6 mm (2.1 in)
1972
38.1 mm (1.5 in)
1973
40.4 mm (1.6 in)
1974
45.7 mm (1.8 in)
1975
46.7 mm (1.8 in)
1976
74.9 mm (2.9 in)
1977
52.1 mm (2.1 in)
1978
54.6 mm (2.1 in)
1979
69.9 mm (2.8 in)
1980
68.8 mm (2.7 in)
1981
48.3 mm (1.9 in)
1982
51.1 mm (2.0 in)
1983
65.8 mm (2.6 in)
1984
58.4 mm (2.3 in)
1985
53.3 mm (2.1 in)
1986
67.8 mm (2.7 in)
1987
49.0 mm (1.9 in)
1988
36.1 mm (1.4 in)
1989
51.6 mm (2.0 in)
1990
43.2 mm (1.7 in)
1991
68.1 mm (2.7 in)
1992
52.8 mm (2.1 in)
1993
52.1 mm (2.1 in)
1994
41.7 mm (1.6 in)
1995
49.0 mm (1.9 in)
1996
48.0 mm (1.9 in)
1997
27.7 mm (1.1 in)
1998
68.1 mm (2.7 in)
1999
56.4 mm (2.2 in)
2000
50.8 mm (2.0 in)
2001
93.2 mm (3.7 in)
2002
58.9 mm (2.3 in)
2003
62.5 mm (2.5 in)
2004
48.8 mm (1.9 in)
2005
67.1 mm (2.6 in)
2006
60.5 mm (2.4 in)
2007
46.5 mm (1.8 in)
2008
50.3 mm (2.0 in)
2009
78.2 mm (3.1 in)
2010
74.9 mm (2.9 in)
2011
60.7 mm (2.4 in)
2012
50.8 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Oak Hill, 1941 to 2012. The record is 183.9 mm (7.2 in) in 1964, marked on the chart; the median year is 87.1 mm (3.4 in).
Wettest five days (Rx5day) at Oak Hill by year
Year
Wettest five days (Rx5day)
1941
22.8 mm (0.9 in)
1942
110.3 mm (4.3 in)
1943
67.1 mm (2.6 in)
1944
66.5 mm (2.6 in)
1945
106.7 mm (4.2 in)
1946
57.1 mm (2.2 in)
1947
67.8 mm (2.7 in)
1948
124.7 mm (4.9 in)
1949
78.5 mm (3.1 in)
1950
123.5 mm (4.9 in)
1951
68.6 mm (2.7 in)
1952
74.2 mm (2.9 in)
1953
91.1 mm (3.6 in)
1954
134.6 mm (5.3 in)
1955
87.0 mm (3.4 in)
1956
130.3 mm (5.1 in)
1957
85.4 mm (3.4 in)
1958
114.3 mm (4.5 in)
1959
85.0 mm (3.3 in)
1960
57.9 mm (2.3 in)
1961
54.6 mm (2.1 in)
1962
81.5 mm (3.2 in)
1963
69.5 mm (2.7 in)
1964
183.9 mm (7.2 in)
1965
55.7 mm (2.2 in)
1966
105.0 mm (4.1 in)
1967
92.9 mm (3.7 in)
1968
66.1 mm (2.6 in)
1969
96.3 mm (3.8 in)
1970
75.7 mm (3.0 in)
1971
88.3 mm (3.5 in)
1972
89.9 mm (3.5 in)
1973
84.6 mm (3.3 in)
1974
85.4 mm (3.4 in)
1975
83.1 mm (3.3 in)
1976
123.5 mm (4.9 in)
1977
105.1 mm (4.1 in)
1978
84.3 mm (3.3 in)
1979
98.3 mm (3.9 in)
1980
149.6 mm (5.9 in)
1981
54.9 mm (2.2 in)
1982
115.3 mm (4.5 in)
1983
128.1 mm (5.0 in)
1984
73.5 mm (2.9 in)
1985
94.5 mm (3.7 in)
1986
120.0 mm (4.7 in)
1987
96.5 mm (3.8 in)
1988
54.1 mm (2.1 in)
1989
108.4 mm (4.3 in)
1990
112.5 mm (4.4 in)
1991
107.3 mm (4.2 in)
1992
56.4 mm (2.2 in)
1993
76.0 mm (3.0 in)
1994
87.1 mm (3.4 in)
1995
93.1 mm (3.7 in)
1996
76.0 mm (3.0 in)
1997
85.4 mm (3.4 in)
1998
82.8 mm (3.3 in)
1999
74.1 mm (2.9 in)
2000
82.8 mm (3.3 in)
2001
143.3 mm (5.6 in)
2002
94.9 mm (3.7 in)
2003
101.6 mm (4.0 in)
2004
105.9 mm (4.2 in)
2005
84.4 mm (3.3 in)
2006
91.5 mm (3.6 in)
2007
80.2 mm (3.2 in)
2008
82.7 mm (3.3 in)
2009
90.9 mm (3.6 in)
2010
94.6 mm (3.7 in)
2011
91.0 mm (3.6 in)
2012
79.2 mm (3.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Oak Hill, 1941 to 2012. The record is 27 days in 1963, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Oak Hill by year
Year
Longest dry spell (CDD)
1941
16 days
1942
18 days
1943
17 days
1944
14 days
1945
12 days
1946
13 days
1947
9 days
1948
11 days
1949
15 days
1950
10 days
1951
16 days
1952
24 days
1953
21 days
1954
14 days
1955
21 days
1956
13 days
1957
20 days
1958
17 days
1959
20 days
1960
12 days
1961
10 days
1962
11 days
1963
27 days
1964
20 days
1965
17 days
1966
20 days
1967
16 days
1968
17 days
1969
13 days
1970
18 days
1971
9 days
1972
9 days
1973
17 days
1974
17 days
1975
10 days
1976
11 days
1977
16 days
1978
11 days
1979
9 days
1980
18 days
1981
17 days
1982
13 days
1983
14 days
1984
17 days
1985
14 days
1986
12 days
1987
12 days
1988
20 days
1989
10 days
1990
15 days
1991
24 days
1992
13 days
1993
17 days
1994
13 days
1995
13 days
1996
9 days
1997
12 days
1998
19 days
1999
14 days
2000
12 days
2001
25 days
2002
17 days
2003
13 days
2004
12 days
2005
18 days
2006
17 days
2007
18 days
2008
10 days
2009
11 days
2010
14 days
2011
9 days
2012
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
59 years with a frost
Across 59 years with a frost, the median last spring frost at Oak Hill falls on 1 May and the median first autumn frost on 10 October, which leaves a median of 167 days between them.
Fitted over all years, the growing season changes by +3.3 days per decade at this station.
Frost dates and growing season at Oak Hill
Measure
Median, all years
Earliest period
Recent period (1978 to 2010)
Recent against earliest
Fitted trend
Last spring frost
1 May
n/a
28 April
n/a
-1.1 days per decade
First autumn frost
10 October
n/a
11 October
n/a
+2.2 days per decade
Growing days
167 days
n/a
171 days
n/a
+3.3 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
67 years, 1942 to 2010
A day with at least 54.5 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 100.9 mm (4.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Oak Hill: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
54.5 mm (2.1 in)
5 years
67.9 mm (2.7 in)
10 years
76.3 mm (3.0 in)
25 years
86.5 mm (3.4 in)
50 years
93.9 mm (3.7 in)
100 years
100.9 mm (4.0 in)
Longer than the 67 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, 67 years of values from 1942 to 2010.
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: 100.3 mm (3.9 in) in 1964; 99.1 mm (3.9 in) in 1954; 93.2 mm (3.7 in) in 2001.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Oak Hill, at 1967. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1967 ran 0.3 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Oak Hill, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1967
-0.3
-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 Oak Hill standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Oak Hill 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.