Record envelope, standing records and threshold days for Circleville (USC00421432), Utah, United States, with 70 years of record.
Key Facts for Circleville
Circleville (USC00421432) is a weather station in Utah, United States at 38.17 latitude and -112.28 longitude, 1,844 m (6,050 ft) above sea level.
The station reports from 1941 to 2010, 70 years of record.
1,464 records set at Circleville still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Circleville tied a daily record high maximum temperature of 34.4 C (93.9 F) on 24 August 2010.
About the Station
Location: Utah, United States, 38.17 latitude, -112.28 longitude.
Elevation: 1,844 m (6,050 ft).
Period of record: 1941 to 2010, 70 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 Circleville. 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 Circleville, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.9 C (66.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Feb
22.2 C (72.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Mar
26.1 C (79.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Apr
30.6 C (87.1 F)
-15.6 C (3.9 F)
n/a
n/a
May
34.4 C (93.9 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
37.8 C (100.0 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
41.1 C (106.0 F)
0.0 C (32.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-3.9 C (25.0 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-24.4 C (-11.9 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-35.0 C (-31.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Circleville still stand. 1960 holds the most, with 60.
Standing records at Circleville by the year they were set
Year set
Standing records
1955
26
1956
12
1959
41
1960
60
1961
23
1962
41
1963
39
1964
39
1965
39
1966
34
1967
30
1968
37
1969
30
1970
34
1971
48
1972
47
1973
24
1974
28
1975
38
1976
24
1977
27
1978
28
1979
18
1980
20
1981
22
1982
27
1983
9
1984
26
1985
35
1986
32
1987
17
1988
23
1989
28
1990
31
1991
14
1992
25
1993
17
1994
24
1995
31
1996
43
1997
19
1998
24
1999
15
2000
37
2001
18
2002
43
2003
14
2004
17
2005
15
2006
19
2007
12
2008
22
2009
17
2010
1
All-Time Record Progression
9 new records
9 all-time records were set at Circleville between 30 March 1984 and 13 July 2002. Each dot is a new record.
When Circleville set new all-time records
Date
Kind
Detail
1984-03-30
Record daily snowfall
Record daily snowfall 35.8 cm (14.1 in)
1985-03-28
Record daily snowfall
Record daily snowfall 45.7 cm (18.0 in)
1989-02-06
Record low minimum temperature
Record low minimum temperature -32.2 C (-26.0 F)
1990-12-22
Record low maximum temperature
Record low maximum temperature -14.4 C (6.1 F)
1990-12-23
Record low maximum temperature
Record low maximum temperature -15.6 C (3.9 F)
1990-12-23
Record low minimum temperature
Record low minimum temperature -35.0 C (-31.0 F)
1997-01-13
Record snow depth
Record snow depth 43.2 cm (17.0 in)
2002-07-12
Record high maximum temperature
Record high maximum temperature 40.0 C (104.0 F)
2002-07-13
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
Wettest Day of Each Month
Sep: 66.3 mm (2.6 in)
The wettest day on record for each calendar month at Circleville. The most was 66.3 mm (2.6 in) on 23 September 1967.
Record daily precipitation for each month at Circleville
Month
Record daily precipitation (mm)
Date
Jan
17.5 mm (0.7 in)
24 January 1944
Feb
16.5 mm (0.6 in)
21 February 1996
Mar
29.2 mm (1.1 in)
30 March 1984
Apr
27.7 mm (1.1 in)
29 April 1962
May
53.3 mm (2.1 in)
18 May 1987
Jun
48.0 mm (1.9 in)
3 June 2005
Jul
57.4 mm (2.3 in)
26 July 2008
Aug
40.6 mm (1.6 in)
8 August 2000
Sep
66.3 mm (2.6 in)
23 September 1967
Oct
31.8 mm (1.3 in)
12 October 1980
Nov
27.4 mm (1.1 in)
26 November 1970
Dec
38.1 mm (1.5 in)
7 December 1966
Period of Record Coverage
1955 to 2010
Complete yearUnder 90 percent of days
54 years of record at Circleville, 1955 to 2010. 11 years have data for under 90 percent of days and are left out of rankings: 1955, 1956, 1959, 1961, 1962, 2003, 2006, 2007 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 42 complete years at Circleville, 1960 to 2008. Blue stripes are years cooler than the station's own mean of 8.7 C (47.7 F); red stripes are warmer. The coolest year was 1982, at 7.4 C (45.3 F), and the warmest was 2000, at 10.0 C (50.1 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Circleville as warming stripes, 1960 to 2008
Year
Annual mean temperature
Difference from the station mean
1960
8.5 C
-0.25 C
1963
8.8 C
+0.12 C
1964
7.6 C
-1.11 C
1965
8.2 C
-0.49 C
1966
8.9 C
+0.21 C
1967
8.5 C
-0.20 C
1968
7.9 C
-0.78 C
1969
8.7 C
-0.04 C
1970
8.3 C
-0.42 C
1971
8.1 C
-0.64 C
1972
8.9 C
+0.20 C
1973
8.4 C
-0.36 C
1974
8.8 C
+0.03 C
1975
7.8 C
-0.95 C
1976
8.5 C
-0.23 C
1978
9.0 C
+0.25 C
1979
8.3 C
-0.38 C
1980
9.1 C
+0.41 C
1981
9.7 C
+0.96 C
1982
7.4 C
-1.35 C
1983
8.7 C
-0.04 C
1984
7.8 C
-0.94 C
1985
8.1 C
-0.62 C
1986
9.1 C
+0.39 C
1987
8.4 C
-0.30 C
1988
8.5 C
-0.28 C
1989
8.3 C
-0.39 C
1990
8.7 C
-0.01 C
1991
8.2 C
-0.49 C
1992
8.9 C
+0.17 C
1993
8.5 C
-0.26 C
1994
9.5 C
+0.80 C
1995
9.5 C
+0.75 C
1996
10.0 C
+1.26 C
1998
8.4 C
-0.37 C
1999
9.3 C
+0.58 C
2000
10.0 C
+1.30 C
2001
9.9 C
+1.14 C
2002
9.2 C
+0.47 C
2004
9.1 C
+0.39 C
2005
9.9 C
+1.16 C
2008
9.1 C
+0.41 C
The annual mean temperature here has risen by 0.3 C (0.1 to 0.4) per decade over 1960 to 2008. In Fahrenheit: 0.5 F (0.2 to 0.7) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Circleville
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.1 to 0.4) per decade
0.5 F (0.2 to 0.7) per decade
1960 to 2008
42
Rise
Mean daily maximum
0.24 C (0.04 to 0.43) per decade
0.4 F (0.1 to 0.8) per decade
1960 to 2008
42
Rise
Mean daily minimum
0.3 C (0.1 to 0.5) per decade
0.5 F (0.2 to 0.9) per decade
1960 to 2008
42
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 2010
Yearly extremes at Circleville: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
2002
36.4 C (97.5 F)
54
Coldest night (TNn)
-35.0 C (-31.0 F)
1990
-23.0 C (-9.5 F)
54
Wettest day (Rx1day)
66.3 mm (2.6 in)
1967
19.6 mm (0.8 in)
69
Wettest five days (Rx5day)
91.4 mm (3.6 in)
1967
30.5 mm (1.2 in)
69
Longest dry spell (CDD)
95 days
1950
38 days
69
Hottest day (TXx)
The hottest day of the year at Circleville, 1941 to 2010. The record is 41.1 C (106.0 F) in 2002, marked on the chart; the median year is 36.4 C (97.5 F).
Hottest day (TXx) at Circleville by year
Year
Hottest day (TXx)
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
33.9 C (93.0 F)
1956
22.8 C (73.0 F)
1957
n/a
1959
38.3 C (100.9 F)
1960
39.4 C (102.9 F)
1961
37.8 C (100.0 F)
1962
36.7 C (98.1 F)
1963
37.2 C (99.0 F)
1964
36.1 C (97.0 F)
1965
33.9 C (93.0 F)
1966
35.0 C (95.0 F)
1967
35.6 C (96.1 F)
1968
35.6 C (96.1 F)
1969
35.6 C (96.1 F)
1970
36.7 C (98.1 F)
1971
37.2 C (99.0 F)
1972
37.2 C (99.0 F)
1973
37.8 C (100.0 F)
1974
36.7 C (98.1 F)
1975
36.1 C (97.0 F)
1976
37.2 C (99.0 F)
1977
35.0 C (95.0 F)
1978
37.8 C (100.0 F)
1979
37.2 C (99.0 F)
1980
35.6 C (96.1 F)
1981
37.8 C (100.0 F)
1982
34.4 C (93.9 F)
1983
34.4 C (93.9 F)
1984
35.6 C (96.1 F)
1985
37.2 C (99.0 F)
1986
36.1 C (97.0 F)
1987
34.4 C (93.9 F)
1988
35.6 C (96.1 F)
1989
37.2 C (99.0 F)
1990
35.0 C (95.0 F)
1991
35.0 C (95.0 F)
1992
35.6 C (96.1 F)
1993
33.3 C (91.9 F)
1994
36.1 C (97.0 F)
1995
35.6 C (96.1 F)
1996
37.2 C (99.0 F)
1997
36.1 C (97.0 F)
1998
39.4 C (102.9 F)
1999
35.6 C (96.1 F)
2000
38.9 C (102.0 F)
2001
37.8 C (100.0 F)
2002
41.1 C (106.0 F)
2003
37.8 C (100.0 F)
2004
34.4 C (93.9 F)
2005
38.3 C (100.9 F)
2006
37.8 C (100.0 F)
2007
37.8 C (100.0 F)
2008
36.7 C (98.1 F)
2009
37.2 C (99.0 F)
2010
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Circleville, 1941 to 2010. The record is -35.0 C (-31.0 F) in 1990, marked on the chart; the median year is -23.0 C (-9.5 F).
Coldest night (TNn) at Circleville by year
Year
Coldest night (TNn)
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
-25.6 C (-14.1 F)
1956
-20.6 C (-5.1 F)
1957
n/a
1959
-19.4 C (-2.9 F)
1960
-24.4 C (-11.9 F)
1961
-17.8 C (0.0 F)
1962
-28.9 C (-20.0 F)
1963
-30.6 C (-23.1 F)
1964
-23.9 C (-11.0 F)
1965
-21.1 C (-6.0 F)
1966
-22.2 C (-8.0 F)
1967
-22.8 C (-9.0 F)
1968
-27.8 C (-18.0 F)
1969
-18.9 C (-2.0 F)
1970
-23.9 C (-11.0 F)
1971
-29.4 C (-20.9 F)
1972
-27.2 C (-17.0 F)
1973
-22.8 C (-9.0 F)
1974
-26.1 C (-15.0 F)
1975
-23.3 C (-9.9 F)
1976
-23.9 C (-11.0 F)
1977
-22.2 C (-8.0 F)
1978
-22.2 C (-8.0 F)
1979
-27.2 C (-17.0 F)
1980
-15.6 C (3.9 F)
1981
-17.2 C (1.0 F)
1982
-30.6 C (-23.1 F)
1983
-21.1 C (-6.0 F)
1984
-23.3 C (-9.9 F)
1985
-25.0 C (-13.0 F)
1986
-21.1 C (-6.0 F)
1987
-26.7 C (-16.1 F)
1988
-28.3 C (-18.9 F)
1989
-32.2 C (-26.0 F)
1990
-35.0 C (-31.0 F)
1991
-22.2 C (-8.0 F)
1992
-26.7 C (-16.1 F)
1993
-21.1 C (-6.0 F)
1994
-21.1 C (-6.0 F)
1995
-18.9 C (-2.0 F)
1996
-21.7 C (-7.1 F)
1997
-28.3 C (-18.9 F)
1998
-28.9 C (-20.0 F)
1999
-18.9 C (-2.0 F)
2000
-18.9 C (-2.0 F)
2001
-20.0 C (-4.0 F)
2002
-23.3 C (-9.9 F)
2003
-21.1 C (-6.0 F)
2004
-29.4 C (-20.9 F)
2005
-18.3 C (-0.9 F)
2006
-17.8 C (0.0 F)
2007
-17.8 C (0.0 F)
2008
-23.9 C (-11.0 F)
2009
-23.9 C (-11.0 F)
2010
4.4 C (39.9 F)
Wettest day (Rx1day)
The wettest day of the year at Circleville, 1941 to 2010. The record is 66.3 mm (2.6 in) in 1967, marked on the chart; the median year is 19.6 mm (0.8 in).
Wettest day (Rx1day) at Circleville by year
Year
Wettest day (Rx1day)
1941
17.3 mm (0.7 in)
1942
22.4 mm (0.9 in)
1943
24.9 mm (1.0 in)
1944
25.4 mm (1.0 in)
1945
16.3 mm (0.6 in)
1946
22.9 mm (0.9 in)
1947
18.5 mm (0.7 in)
1948
12.2 mm (0.5 in)
1949
25.9 mm (1.0 in)
1950
12.7 mm (0.5 in)
1951
15.7 mm (0.6 in)
1952
16.5 mm (0.6 in)
1953
12.4 mm (0.5 in)
1954
19.1 mm (0.8 in)
1955
18.5 mm (0.7 in)
1956
6.4 mm (0.25 in)
1957
6.4 mm (0.25 in)
1959
18.3 mm (0.7 in)
1960
16.8 mm (0.7 in)
1961
24.6 mm (1.0 in)
1962
27.7 mm (1.1 in)
1963
35.1 mm (1.4 in)
1964
14.0 mm (0.6 in)
1965
27.4 mm (1.1 in)
1966
38.1 mm (1.5 in)
1967
66.3 mm (2.6 in)
1968
14.0 mm (0.6 in)
1969
21.3 mm (0.8 in)
1970
27.4 mm (1.1 in)
1971
20.3 mm (0.8 in)
1972
20.6 mm (0.8 in)
1973
10.9 mm (0.4 in)
1974
21.3 mm (0.8 in)
1975
19.8 mm (0.8 in)
1976
14.2 mm (0.6 in)
1977
24.6 mm (1.0 in)
1978
26.4 mm (1.0 in)
1979
19.3 mm (0.8 in)
1980
31.8 mm (1.3 in)
1981
13.2 mm (0.5 in)
1982
25.1 mm (1.0 in)
1983
17.8 mm (0.7 in)
1984
29.2 mm (1.1 in)
1985
21.6 mm (0.9 in)
1986
19.6 mm (0.8 in)
1987
53.3 mm (2.1 in)
1988
21.1 mm (0.8 in)
1989
18.3 mm (0.7 in)
1990
24.6 mm (1.0 in)
1991
15.7 mm (0.6 in)
1992
16.0 mm (0.6 in)
1993
17.3 mm (0.7 in)
1994
18.3 mm (0.7 in)
1995
18.3 mm (0.7 in)
1996
18.0 mm (0.7 in)
1997
39.6 mm (1.6 in)
1998
27.4 mm (1.1 in)
1999
24.9 mm (1.0 in)
2000
40.6 mm (1.6 in)
2001
13.2 mm (0.5 in)
2002
25.1 mm (1.0 in)
2003
11.4 mm (0.4 in)
2004
29.2 mm (1.1 in)
2005
48.0 mm (1.9 in)
2006
15.7 mm (0.6 in)
2007
18.5 mm (0.7 in)
2008
57.4 mm (2.3 in)
2009
14.0 mm (0.6 in)
2010
11.4 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Circleville, 1941 to 2010. The record is 91.4 mm (3.6 in) in 1967, marked on the chart; the median year is 30.5 mm (1.2 in).
Wettest five days (Rx5day) at Circleville by year
Year
Wettest five days (Rx5day)
1941
28.7 mm (1.1 in)
1942
37.4 mm (1.5 in)
1943
24.9 mm (1.0 in)
1944
33.5 mm (1.3 in)
1945
23.9 mm (0.9 in)
1946
22.9 mm (0.9 in)
1947
33.7 mm (1.3 in)
1948
28.7 mm (1.1 in)
1949
37.1 mm (1.5 in)
1950
16.5 mm (0.6 in)
1951
25.4 mm (1.0 in)
1952
25.4 mm (1.0 in)
1953
21.6 mm (0.9 in)
1954
30.7 mm (1.2 in)
1955
30.4 mm (1.2 in)
1956
11.2 mm (0.4 in)
1957
6.4 mm (0.25 in)
1959
23.8 mm (0.9 in)
1960
28.0 mm (1.1 in)
1961
38.1 mm (1.5 in)
1962
27.7 mm (1.1 in)
1963
51.6 mm (2.0 in)
1964
27.5 mm (1.1 in)
1965
32.0 mm (1.3 in)
1966
58.9 mm (2.3 in)
1967
91.4 mm (3.6 in)
1968
22.9 mm (0.9 in)
1969
26.4 mm (1.0 in)
1970
32.5 mm (1.3 in)
1971
34.1 mm (1.3 in)
1972
35.2 mm (1.4 in)
1973
20.8 mm (0.8 in)
1974
34.6 mm (1.4 in)
1975
41.2 mm (1.6 in)
1976
23.0 mm (0.9 in)
1977
27.9 mm (1.1 in)
1978
30.5 mm (1.2 in)
1979
24.3 mm (1.0 in)
1980
50.0 mm (2.0 in)
1981
21.3 mm (0.8 in)
1982
35.8 mm (1.4 in)
1983
25.9 mm (1.0 in)
1984
38.1 mm (1.5 in)
1985
37.4 mm (1.5 in)
1986
30.9 mm (1.2 in)
1987
63.7 mm (2.5 in)
1988
36.3 mm (1.4 in)
1989
33.6 mm (1.3 in)
1990
27.6 mm (1.1 in)
1991
21.6 mm (0.9 in)
1992
23.1 mm (0.9 in)
1993
28.0 mm (1.1 in)
1994
31.5 mm (1.2 in)
1995
25.9 mm (1.0 in)
1996
22.6 mm (0.9 in)
1997
49.3 mm (1.9 in)
1998
50.2 mm (2.0 in)
1999
32.3 mm (1.3 in)
2000
45.7 mm (1.8 in)
2001
23.1 mm (0.9 in)
2002
40.4 mm (1.6 in)
2003
14.0 mm (0.6 in)
2004
48.7 mm (1.9 in)
2005
48.0 mm (1.9 in)
2006
34.3 mm (1.4 in)
2007
34.3 mm (1.4 in)
2008
71.7 mm (2.8 in)
2009
16.5 mm (0.6 in)
2010
11.4 mm (0.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Circleville, 1941 to 2010. The record is 95 days in 1950, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Circleville by year
Year
Longest dry spell (CDD)
1941
15 days
1942
75 days
1943
40 days
1944
47 days
1945
37 days
1946
44 days
1947
29 days
1948
43 days
1949
36 days
1950
95 days
1951
35 days
1952
40 days
1953
39 days
1954
34 days
1955
42 days
1956
36 days
1957
21 days
1959
42 days
1960
86 days
1961
34 days
1962
31 days
1963
31 days
1964
42 days
1965
58 days
1966
39 days
1967
33 days
1968
47 days
1969
31 days
1970
36 days
1971
63 days
1972
75 days
1973
40 days
1974
60 days
1975
41 days
1976
52 days
1977
42 days
1978
72 days
1979
70 days
1980
43 days
1981
29 days
1982
38 days
1983
27 days
1984
27 days
1985
35 days
1986
26 days
1987
29 days
1988
34 days
1989
34 days
1990
33 days
1991
33 days
1992
39 days
1993
36 days
1994
29 days
1995
36 days
1996
44 days
1997
33 days
1998
38 days
1999
62 days
2000
42 days
2001
35 days
2002
60 days
2003
64 days
2004
30 days
2005
29 days
2006
42 days
2007
37 days
2008
45 days
2009
48 days
2010
31 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
42 years with a frost
Across 42 years with a frost, the median last spring frost at Circleville falls on 9 June and the median first autumn frost on 15 September, which leaves a median of 101 days between them.
Fitted over all years, the growing season changes by +4.3 days per decade at this station.
Frost dates and growing season at Circleville
Measure
Median, all years
Earliest period
Recent period (1974 to 2008)
Recent against earliest
Fitted trend
Last spring frost
9 June
n/a
9 June
n/a
-2.7 days per decade
First autumn frost
15 September
n/a
16 September
n/a
+1.6 days per decade
Growing days
101 days
n/a
103 days
n/a
+4.3 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
55 years, 1942 to 2009
A day with at least 21.1 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 71.8 mm (2.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Circleville: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
21.1 mm (0.8 in)
5 years
30.0 mm (1.2 in)
10 years
37.4 mm (1.5 in)
25 years
48.9 mm (1.9 in)
50 years
59.4 mm (2.3 in)
100 years
71.8 mm (2.8 in)
Longer than the 55 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, 55 years of values from 1942 to 2009.
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: 66.3 mm (2.6 in) in 1967; 57.4 mm (2.3 in) in 2008; 53.3 mm (2.1 in) in 1987.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Circleville, at 1981. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1981 ran 0.3 C (0.5 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Circleville, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1981
-0.3
-0.5
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 Circleville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Circleville 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.