Record envelope, standing records and threshold days for Culpeper (USC00442155), Virginia, United States, with 84 years of record.
Key Facts for Culpeper
Culpeper (USC00442155) is a weather station in Virginia, United States at 38.48 latitude and -77.98 longitude, 145 m (475 ft) above sea level.
The station reports from 1907 to 1990, 84 years of record.
1,464 records set at Culpeper still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Culpeper set a daily record high minimum temperature of 25.6 C (78.1 F) on 30 June 1990.
About the Station
Location: Virginia, United States, 38.48 latitude, -77.98 longitude.
Elevation: 145 m (475 ft).
Period of record: 1907 to 1990, 84 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 Culpeper. 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 Culpeper, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.7 C (80.1 F)
-28.9 C (-20.0 F)
n/a
n/a
Feb
28.9 C (84.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Mar
32.8 C (91.0 F)
-15.0 C (5.0 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-10.0 C (14.0 F)
n/a
n/a
May
37.8 C (100.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
39.4 C (102.9 F)
2.8 C (37.0 F)
n/a
n/a
Jul
41.7 C (107.1 F)
8.9 C (48.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-0.6 C (30.9 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
26.1 C (79.0 F)
-21.7 C (-7.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Culpeper still stand. 1914 holds the most, with 37.
Standing records at Culpeper by the year they were set
Year set
Standing records
1907
5
1908
19
1909
20
1910
22
1911
26
1912
27
1913
16
1914
37
1917
25
1918
31
1919
14
1920
10
1921
16
1922
11
1923
28
1924
16
1925
25
1926
20
1927
24
1928
15
1929
27
1930
35
1931
16
1932
21
1933
19
1934
23
1935
25
1936
20
1937
20
1938
19
1939
29
1940
22
1941
31
1942
20
1943
30
1944
16
1945
23
1946
13
1947
18
1948
14
1949
15
1950
27
1951
23
1952
19
1953
21
1954
28
1955
9
1956
22
1957
19
1958
10
1959
12
1960
15
1961
24
1962
20
1963
16
1964
20
1965
16
1966
15
1967
15
1968
12
1969
10
1970
15
1971
16
1972
18
1973
7
1974
12
1975
12
1976
10
1977
15
1978
8
1979
19
1980
13
1981
9
1982
15
1983
18
1984
16
1985
12
1989
19
1990
14
All-Time Record Progression
5 new records
5 all-time records were set at Culpeper between 23 July 1952 and 14 September 1966. Each dot is a new record.
When Culpeper set new all-time records
Date
Kind
Detail
1952-07-23
Record high maximum temperature
Record high maximum temperature 41.7 C (107.1 F)
1957-08-04
Record high minimum temperature
Record high minimum temperature 27.2 C (81.0 F)
1961-02-08
Record snow depth
Record snow depth 63.5 cm (25.0 in)
1966-01-29
Record low maximum temperature
Record low maximum temperature -11.1 C (12.0 F)
1966-09-14
Record daily precipitation
Record daily precipitation 149.9 mm (5.9 in)
Wettest Day of Each Month
Sep: 149.9 mm (5.9 in)
The wettest day on record for each calendar month at Culpeper. The most was 149.9 mm (5.9 in) on 14 September 1966.
Record daily precipitation for each month at Culpeper
Month
Record daily precipitation (mm)
Date
Jan
68.6 mm (2.7 in)
10 January 1921
Feb
109.2 mm (4.3 in)
14 February 1984
Mar
77.5 mm (3.1 in)
7 March 1967
Apr
108.0 mm (4.3 in)
26 April 1937
May
104.6 mm (4.1 in)
6 May 1989
Jun
134.6 mm (5.3 in)
21 June 1972
Jul
118.1 mm (4.6 in)
29 July 1969
Aug
127.0 mm (5.0 in)
9 August 1970
Sep
149.9 mm (5.9 in)
14 September 1966
Oct
129.3 mm (5.1 in)
15 October 1954
Nov
81.8 mm (3.2 in)
15 November 1952
Dec
85.1 mm (3.4 in)
4 December 1948
Period of Record Coverage
1907 to 1990
Complete yearUnder 90 percent of days
79 years of record at Culpeper, 1907 to 1990. 10 years have data for under 90 percent of days and are left out of rankings: 1907, 1917, 1918, 1953, 1956, 1970, 1971, 1985 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 67 complete years at Culpeper, 1908 to 1984. Blue stripes are years cooler than the station's own mean of 13.2 C (55.8 F); red stripes are warmer. The coolest year was 1924, at 11.6 C (52.8 F), and the warmest was 1949, at 14.6 C (58.3 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Culpeper as warming stripes, 1908 to 1984
Year
Annual mean temperature
Difference from the station mean
1908
12.6 C
-0.56 C
1909
12.6 C
-0.57 C
1910
12.2 C
-0.98 C
1911
13.2 C
+0.03 C
1912
11.8 C
-1.39 C
1913
13.1 C
-0.06 C
1914
12.0 C
-1.23 C
1919
13.4 C
+0.16 C
1920
12.2 C
-0.97 C
1921
14.2 C
+0.98 C
1922
13.2 C
+0.03 C
1923
12.8 C
-0.39 C
1924
11.6 C
-1.65 C
1925
12.7 C
-0.51 C
1926
12.1 C
-1.08 C
1927
12.6 C
-0.60 C
1928
12.8 C
-0.38 C
1929
13.1 C
-0.11 C
1930
13.5 C
+0.30 C
1931
14.0 C
+0.80 C
1932
13.5 C
+0.31 C
1933
13.6 C
+0.41 C
1934
13.0 C
-0.22 C
1935
12.8 C
-0.43 C
1936
13.3 C
+0.07 C
1937
13.6 C
+0.42 C
1938
14.2 C
+1.04 C
1939
14.4 C
+1.16 C
1940
12.6 C
-0.58 C
1941
13.9 C
+0.71 C
1942
14.0 C
+0.75 C
1943
13.9 C
+0.67 C
1944
13.8 C
+0.58 C
1945
13.8 C
+0.56 C
1946
14.1 C
+0.89 C
1947
13.2 C
+0.01 C
1948
13.3 C
+0.14 C
1949
14.6 C
+1.40 C
1950
13.4 C
+0.21 C
1951
13.3 C
+0.11 C
1952
13.9 C
+0.73 C
1955
13.5 C
+0.32 C
1957
14.1 C
+0.92 C
1958
12.5 C
-0.75 C
1959
14.3 C
+1.07 C
1960
12.6 C
-0.58 C
1961
12.7 C
-0.52 C
1962
12.2 C
-1.04 C
1963
12.3 C
-0.93 C
1964
13.0 C
-0.24 C
1965
12.9 C
-0.32 C
1966
12.4 C
-0.78 C
1967
12.9 C
-0.30 C
1968
13.0 C
-0.18 C
1969
12.6 C
-0.58 C
1972
13.3 C
+0.13 C
1973
14.2 C
+0.99 C
1974
13.9 C
+0.71 C
1975
13.8 C
+0.61 C
1976
13.2 C
+0.04 C
1977
13.7 C
+0.53 C
1978
12.7 C
-0.46 C
1980
13.4 C
+0.16 C
1981
13.1 C
-0.15 C
1982
13.4 C
+0.18 C
1983
13.5 C
+0.27 C
1984
13.5 C
+0.34 C
The annual mean temperature here has risen by 0.08 C (0.00 to 0.15) per decade over 1908 to 1984. In Fahrenheit: 0.14 F (0.00 to 0.27) per decade. The slope is a straight line fitted to 67 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Culpeper
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.08 C (0.00 to 0.15) per decade
0.14 F (0.00 to 0.27) per decade
1908 to 1984
67
Rise
Mean daily maximum
0.14 C (0.05 to 0.23) per decade
0.3 F (0.1 to 0.4) per decade
1908 to 1984
67
Rise
Mean daily minimum
0.01 C (-0.07 to 0.09) per decade
0.02 F (-0.12 to 0.16) per decade
1908 to 1984
67
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
1907 to 1990
Yearly extremes at Culpeper: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.7 C (107.1 F)
1952
36.7 C (98.1 F)
79
Coldest night (TNn)
-28.9 C (-20.0 F)
1912
-16.7 C (1.9 F)
79
Wettest day (Rx1day)
149.9 mm (5.9 in)
1966
69.9 mm (2.8 in)
79
Wettest five days (Rx5day)
231.1 mm (9.1 in)
1972
107.2 mm (4.2 in)
79
Longest dry spell (CDD)
52 days
1952
20 days
79
Hottest day (TXx)
The hottest day of the year at Culpeper, 1907 to 1990. The record is 41.7 C (107.1 F) in 1952, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Culpeper by year
Year
Hottest day (TXx)
1907
35.0 C (95.0 F)
1908
36.1 C (97.0 F)
1909
36.7 C (98.1 F)
1910
34.4 C (93.9 F)
1911
37.8 C (100.0 F)
1912
34.4 C (93.9 F)
1913
33.9 C (93.0 F)
1914
38.3 C (100.9 F)
1917
37.2 C (99.0 F)
1918
38.3 C (100.9 F)
1919
36.1 C (97.0 F)
1920
34.4 C (93.9 F)
1921
35.6 C (96.1 F)
1922
34.4 C (93.9 F)
1923
36.1 C (97.0 F)
1924
36.7 C (98.1 F)
1925
36.1 C (97.0 F)
1926
38.3 C (100.9 F)
1927
35.0 C (95.0 F)
1928
34.4 C (93.9 F)
1929
35.6 C (96.1 F)
1930
40.0 C (104.0 F)
1931
35.6 C (96.1 F)
1932
36.1 C (97.0 F)
1933
35.6 C (96.1 F)
1934
36.7 C (98.1 F)
1935
35.0 C (95.0 F)
1936
38.9 C (102.0 F)
1937
37.8 C (100.0 F)
1938
37.8 C (100.0 F)
1939
37.8 C (100.0 F)
1940
38.3 C (100.9 F)
1941
38.3 C (100.9 F)
1942
40.0 C (104.0 F)
1943
38.3 C (100.9 F)
1944
37.8 C (100.0 F)
1945
37.2 C (99.0 F)
1946
35.6 C (96.1 F)
1947
35.6 C (96.1 F)
1948
37.2 C (99.0 F)
1949
36.1 C (97.0 F)
1950
36.7 C (98.1 F)
1951
37.2 C (99.0 F)
1952
41.7 C (107.1 F)
1953
38.9 C (102.0 F)
1954
38.9 C (102.0 F)
1955
37.2 C (99.0 F)
1956
35.6 C (96.1 F)
1957
37.8 C (100.0 F)
1958
35.0 C (95.0 F)
1959
37.2 C (99.0 F)
1960
36.7 C (98.1 F)
1961
34.4 C (93.9 F)
1962
36.1 C (97.0 F)
1963
37.2 C (99.0 F)
1964
37.8 C (100.0 F)
1965
36.7 C (98.1 F)
1966
37.8 C (100.0 F)
1967
35.0 C (95.0 F)
1968
36.1 C (97.0 F)
1969
36.7 C (98.1 F)
1970
36.7 C (98.1 F)
1971
34.4 C (93.9 F)
1972
35.6 C (96.1 F)
1973
36.1 C (97.0 F)
1974
35.6 C (96.1 F)
1975
36.1 C (97.0 F)
1976
36.7 C (98.1 F)
1977
40.0 C (104.0 F)
1978
36.7 C (98.1 F)
1979
35.6 C (96.1 F)
1980
39.4 C (102.9 F)
1981
36.1 C (97.0 F)
1982
35.0 C (95.0 F)
1983
38.9 C (102.0 F)
1984
36.1 C (97.0 F)
1985
36.7 C (98.1 F)
1989
37.2 C (99.0 F)
1990
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Culpeper, 1907 to 1990. The record is -28.9 C (-20.0 F) in 1912, marked on the chart; the median year is -16.7 C (1.9 F).
Coldest night (TNn) at Culpeper by year
Year
Coldest night (TNn)
1907
-10.0 C (14.0 F)
1908
-16.7 C (1.9 F)
1909
-17.8 C (0.0 F)
1910
-20.6 C (-5.1 F)
1911
-11.7 C (10.9 F)
1912
-28.9 C (-20.0 F)
1913
-12.8 C (9.0 F)
1914
-21.7 C (-7.1 F)
1917
-20.6 C (-5.1 F)
1918
-22.2 C (-8.0 F)
1919
-17.8 C (0.0 F)
1920
-14.4 C (6.1 F)
1921
-14.4 C (6.1 F)
1922
-16.7 C (1.9 F)
1923
-13.9 C (7.0 F)
1924
-15.6 C (3.9 F)
1925
-16.7 C (1.9 F)
1926
-17.8 C (0.0 F)
1927
-13.9 C (7.0 F)
1928
-16.7 C (1.9 F)
1929
-13.9 C (7.0 F)
1930
-21.1 C (-6.0 F)
1931
-11.7 C (10.9 F)
1932
-15.6 C (3.9 F)
1933
-13.3 C (8.1 F)
1934
-22.8 C (-9.0 F)
1935
-24.4 C (-11.9 F)
1936
-21.7 C (-7.1 F)
1937
-12.8 C (9.0 F)
1938
-14.4 C (6.1 F)
1939
-11.1 C (12.0 F)
1940
-21.7 C (-7.1 F)
1941
-12.2 C (10.0 F)
1942
-17.8 C (0.0 F)
1943
-17.8 C (0.0 F)
1944
-12.2 C (10.0 F)
1945
-16.7 C (1.9 F)
1946
-16.7 C (1.9 F)
1947
-14.4 C (6.1 F)
1948
-20.0 C (-4.0 F)
1949
-10.6 C (12.9 F)
1950
-14.4 C (6.1 F)
1951
-20.0 C (-4.0 F)
1952
-12.8 C (9.0 F)
1953
-15.0 C (5.0 F)
1954
-15.0 C (5.0 F)
1955
-16.1 C (3.0 F)
1956
-12.2 C (10.0 F)
1957
-22.8 C (-9.0 F)
1958
-16.7 C (1.9 F)
1959
-20.0 C (-4.0 F)
1960
-17.2 C (1.0 F)
1961
-25.6 C (-14.1 F)
1962
-20.0 C (-4.0 F)
1963
-16.7 C (1.9 F)
1964
-20.6 C (-5.1 F)
1965
-23.9 C (-11.0 F)
1966
-20.6 C (-5.1 F)
1967
-20.6 C (-5.1 F)
1968
-19.4 C (-2.9 F)
1969
-17.8 C (0.0 F)
1970
-22.8 C (-9.0 F)
1971
-8.9 C (16.0 F)
1972
-18.9 C (-2.0 F)
1973
-15.0 C (5.0 F)
1974
-13.3 C (8.1 F)
1975
-13.9 C (7.0 F)
1976
-15.0 C (5.0 F)
1977
-18.3 C (-0.9 F)
1978
-14.4 C (6.1 F)
1979
-22.2 C (-8.0 F)
1980
-15.6 C (3.9 F)
1981
-17.8 C (0.0 F)
1982
-22.2 C (-8.0 F)
1983
-18.3 C (-0.9 F)
1984
-22.8 C (-9.0 F)
1985
-20.6 C (-5.1 F)
1989
-21.1 C (-6.0 F)
1990
-9.4 C (15.1 F)
Wettest day (Rx1day)
The wettest day of the year at Culpeper, 1907 to 1990. The record is 149.9 mm (5.9 in) in 1966, marked on the chart; the median year is 69.9 mm (2.8 in).
Wettest day (Rx1day) at Culpeper by year
Year
Wettest day (Rx1day)
1907
72.4 mm (2.9 in)
1908
99.8 mm (3.9 in)
1909
66.0 mm (2.6 in)
1910
103.6 mm (4.1 in)
1911
95.3 mm (3.8 in)
1912
140.5 mm (5.5 in)
1913
101.6 mm (4.0 in)
1914
62.2 mm (2.4 in)
1917
38.1 mm (1.5 in)
1918
63.5 mm (2.5 in)
1919
50.8 mm (2.0 in)
1920
76.2 mm (3.0 in)
1921
68.6 mm (2.7 in)
1922
69.9 mm (2.8 in)
1923
50.8 mm (2.0 in)
1924
116.8 mm (4.6 in)
1925
86.4 mm (3.4 in)
1926
63.0 mm (2.5 in)
1927
63.5 mm (2.5 in)
1928
83.8 mm (3.3 in)
1929
108.0 mm (4.3 in)
1930
54.6 mm (2.1 in)
1931
45.7 mm (1.8 in)
1932
76.2 mm (3.0 in)
1933
66.3 mm (2.6 in)
1934
85.1 mm (3.4 in)
1935
94.0 mm (3.7 in)
1936
54.6 mm (2.1 in)
1937
108.0 mm (4.3 in)
1938
36.8 mm (1.4 in)
1939
79.5 mm (3.1 in)
1940
62.2 mm (2.4 in)
1941
53.3 mm (2.1 in)
1942
85.3 mm (3.4 in)
1943
77.0 mm (3.0 in)
1944
88.9 mm (3.5 in)
1945
59.7 mm (2.4 in)
1946
67.3 mm (2.6 in)
1947
68.6 mm (2.7 in)
1948
85.1 mm (3.4 in)
1949
72.4 mm (2.9 in)
1950
50.8 mm (2.0 in)
1951
97.3 mm (3.8 in)
1952
81.8 mm (3.2 in)
1953
52.6 mm (2.1 in)
1954
129.3 mm (5.1 in)
1955
101.6 mm (4.0 in)
1956
81.3 mm (3.2 in)
1957
69.6 mm (2.7 in)
1958
49.8 mm (2.0 in)
1959
51.3 mm (2.0 in)
1960
45.7 mm (1.8 in)
1961
49.0 mm (1.9 in)
1962
39.9 mm (1.6 in)
1963
63.5 mm (2.5 in)
1964
47.0 mm (1.9 in)
1965
79.5 mm (3.1 in)
1966
149.9 mm (5.9 in)
1967
77.5 mm (3.1 in)
1968
57.2 mm (2.3 in)
1969
118.1 mm (4.6 in)
1970
127.0 mm (5.0 in)
1971
50.8 mm (2.0 in)
1972
134.6 mm (5.3 in)
1973
61.0 mm (2.4 in)
1974
62.7 mm (2.5 in)
1975
59.7 mm (2.4 in)
1976
90.2 mm (3.6 in)
1977
67.3 mm (2.6 in)
1978
44.5 mm (1.8 in)
1979
87.6 mm (3.4 in)
1980
52.1 mm (2.1 in)
1981
96.5 mm (3.8 in)
1982
73.7 mm (2.9 in)
1983
68.1 mm (2.7 in)
1984
109.2 mm (4.3 in)
1985
117.3 mm (4.6 in)
1989
104.6 mm (4.1 in)
1990
63.5 mm (2.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Culpeper, 1907 to 1990. The record is 231.1 mm (9.1 in) in 1972, marked on the chart; the median year is 107.2 mm (4.2 in).
Wettest five days (Rx5day) at Culpeper by year
Year
Wettest five days (Rx5day)
1907
103.6 mm (4.1 in)
1908
101.3 mm (4.0 in)
1909
96.3 mm (3.8 in)
1910
109.4 mm (4.3 in)
1911
105.0 mm (4.1 in)
1912
147.9 mm (5.8 in)
1913
133.3 mm (5.2 in)
1914
70.4 mm (2.8 in)
1917
55.9 mm (2.2 in)
1918
110.5 mm (4.4 in)
1919
101.6 mm (4.0 in)
1920
177.9 mm (7.0 in)
1921
111.8 mm (4.4 in)
1922
62.2 mm (2.4 in)
1923
70.9 mm (2.8 in)
1924
171.5 mm (6.8 in)
1925
112.3 mm (4.4 in)
1926
124.6 mm (4.9 in)
1927
72.1 mm (2.8 in)
1928
120.6 mm (4.7 in)
1929
108.0 mm (4.3 in)
1930
59.2 mm (2.3 in)
1931
98.1 mm (3.9 in)
1932
107.2 mm (4.2 in)
1933
92.3 mm (3.6 in)
1934
167.1 mm (6.6 in)
1935
150.7 mm (5.9 in)
1936
75.7 mm (3.0 in)
1937
195.7 mm (7.7 in)
1938
77.6 mm (3.1 in)
1939
116.4 mm (4.6 in)
1940
75.7 mm (3.0 in)
1941
141.2 mm (5.6 in)
1942
176.8 mm (7.0 in)
1943
98.3 mm (3.9 in)
1944
110.5 mm (4.4 in)
1945
135.3 mm (5.3 in)
1946
117.6 mm (4.6 in)
1947
91.7 mm (3.6 in)
1948
109.3 mm (4.3 in)
1949
105.4 mm (4.1 in)
1950
84.2 mm (3.3 in)
1951
133.6 mm (5.3 in)
1952
152.4 mm (6.0 in)
1953
66.0 mm (2.6 in)
1954
135.9 mm (5.4 in)
1955
175.2 mm (6.9 in)
1956
102.2 mm (4.0 in)
1957
87.7 mm (3.5 in)
1958
81.8 mm (3.2 in)
1959
78.8 mm (3.1 in)
1960
102.9 mm (4.1 in)
1961
90.0 mm (3.5 in)
1962
75.1 mm (3.0 in)
1963
103.6 mm (4.1 in)
1964
73.4 mm (2.9 in)
1965
84.3 mm (3.3 in)
1966
159.0 mm (6.3 in)
1967
134.4 mm (5.3 in)
1968
79.0 mm (3.1 in)
1969
172.7 mm (6.8 in)
1970
130.1 mm (5.1 in)
1971
98.3 mm (3.9 in)
1972
231.1 mm (9.1 in)
1973
94.4 mm (3.7 in)
1974
120.4 mm (4.7 in)
1975
188.0 mm (7.4 in)
1976
116.7 mm (4.6 in)
1977
79.5 mm (3.1 in)
1978
80.5 mm (3.2 in)
1979
133.8 mm (5.3 in)
1980
62.8 mm (2.5 in)
1981
119.4 mm (4.7 in)
1982
118.1 mm (4.6 in)
1983
96.3 mm (3.8 in)
1984
213.6 mm (8.4 in)
1985
129.3 mm (5.1 in)
1989
134.6 mm (5.3 in)
1990
69.3 mm (2.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Culpeper, 1907 to 1990. The record is 52 days in 1952, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Culpeper by year
Year
Longest dry spell (CDD)
1907
28 days
1908
22 days
1909
16 days
1910
23 days
1911
22 days
1912
16 days
1913
27 days
1914
20 days
1917
27 days
1918
22 days
1919
13 days
1920
26 days
1921
21 days
1922
35 days
1923
18 days
1924
26 days
1925
16 days
1926
21 days
1927
14 days
1928
22 days
1929
17 days
1930
35 days
1931
20 days
1932
25 days
1933
16 days
1934
18 days
1935
20 days
1936
23 days
1937
20 days
1938
19 days
1939
21 days
1940
14 days
1941
24 days
1942
15 days
1943
17 days
1944
21 days
1945
17 days
1946
24 days
1947
12 days
1948
16 days
1949
18 days
1950
15 days
1951
21 days
1952
52 days
1953
21 days
1954
25 days
1955
22 days
1956
19 days
1957
23 days
1958
23 days
1959
18 days
1960
15 days
1961
15 days
1962
14 days
1963
32 days
1964
30 days
1965
20 days
1966
28 days
1967
18 days
1968
26 days
1969
20 days
1970
22 days
1971
24 days
1972
15 days
1973
22 days
1974
19 days
1975
16 days
1976
21 days
1977
18 days
1978
24 days
1979
16 days
1980
15 days
1981
20 days
1982
24 days
1983
16 days
1984
14 days
1985
26 days
1989
19 days
1990
15 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
67 years with a frost
Across 67 years with a frost, the median last spring frost at Culpeper falls on 17 April and the median first autumn frost on 20 October, which leaves a median of 185 days between them.
In 1949 to 1984 the median growing season was 187 days. That is 3 days more than in 1908 to 1941.
Fitted over all years, the growing season changes by +0.3 days per decade at this station.
Frost dates and growing season at Culpeper
Measure
Median, all years
Earliest period (1908 to 1941)
Recent period (1949 to 1984)
Recent against earliest
Fitted trend
Last spring frost
17 April
20 April
16 April
4 days earlier
-0.7 days per decade
First autumn frost
20 October
21 October
19 October
2 days earlier
-0.4 days per decade
Growing days
185 days
184 days
187 days
3 days more
+0.3 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
68 years, 1908 to 1984
A day with at least 72.6 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 160.7 mm (6.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Culpeper: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
72.6 mm (2.9 in)
5 years
95.9 mm (3.8 in)
10 years
111.4 mm (4.4 in)
25 years
131.1 mm (5.2 in)
50 years
145.9 mm (5.7 in)
100 years
160.7 mm (6.3 in)
Longer than the 68 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, 68 years of values from 1908 to 1984.
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: 149.9 mm (5.9 in) in 1966; 140.5 mm (5.5 in) in 1912; 134.6 mm (5.3 in) in 1972.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Culpeper standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Culpeper 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.