Record envelope, standing records and threshold days for Quantico 1 S (USC00446979), Virginia, United States, with 81 years of record.
Key Facts for Quantico 1 S
Quantico 1 S (USC00446979) is a weather station in Virginia, United States at 38.50 latitude and -77.32 longitude, 3 m (10 ft) above sea level.
The station reports from 1896 to 1976, 81 years of record.
1,464 records set at Quantico 1 S still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Quantico 1 S set a daily record precipitation of 23.9 mm (0.9 in) on 31 March 1976.
About the Station
Location: Virginia, United States, 38.50 latitude, -77.32 longitude.
Elevation: 3 m (10 ft).
Period of record: 1896 to 1976, 81 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Quantico 1 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 Quantico 1 S, 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)
-20.6 C (-5.1 F)
n/a
n/a
Feb
28.3 C (82.9 F)
-28.9 C (-20.0 F)
n/a
n/a
Mar
33.3 C (91.9 F)
-14.4 C (6.1 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-8.9 C (16.0 F)
n/a
n/a
May
36.7 C (98.1 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
40.0 C (104.0 F)
2.8 C (37.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
4.4 C (39.9 F)
n/a
n/a
Aug
42.8 C (109.0 F)
4.4 C (39.9 F)
n/a
n/a
Sep
40.6 C (105.1 F)
0.6 C (33.1 F)
n/a
n/a
Oct
36.1 C (97.0 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
30.6 C (87.1 F)
-13.9 C (7.0 F)
n/a
n/a
Dec
25.6 C (78.1 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 Quantico 1 S still stand. 1919 holds the most, with 44.
Standing records at Quantico 1 S by the year they were set
Year set
Standing records
1896
21
1897
24
1898
30
1899
33
1900
35
1901
20
1902
11
1903
16
1904
17
1905
19
1906
17
1907
41
1908
21
1909
20
1910
24
1911
23
1912
19
1913
22
1914
30
1915
19
1916
14
1917
6
1918
11
1919
44
1920
36
1921
30
1922
11
1923
18
1924
6
1925
19
1926
15
1927
21
1928
14
1929
17
1930
35
1931
9
1932
16
1933
18
1934
13
1935
18
1936
13
1937
11
1938
11
1939
18
1940
27
1941
23
1942
17
1943
21
1944
12
1945
19
1946
19
1947
20
1948
15
1949
9
1950
25
1951
19
1952
13
1953
16
1954
28
1955
14
1956
17
1957
10
1958
10
1959
15
1960
20
1961
24
1962
12
1963
13
1964
13
1965
18
1966
11
1967
14
1968
6
1969
5
1970
14
1971
15
1972
13
1973
11
1974
14
1975
14
1976
12
Wettest Day of Each Month
Aug: 195.6 mm (7.7 in)
The wettest day on record for each calendar month at Quantico 1 S. The most was 195.6 mm (7.7 in) on 11 August 1928.
Record daily precipitation for each month at Quantico 1 S
Month
Record daily precipitation (mm)
Date
Jan
70.6 mm (2.8 in)
12 January 1908
Feb
48.3 mm (1.9 in)
2 February 1939
Mar
106.7 mm (4.2 in)
11 March 1924
Apr
88.9 mm (3.5 in)
20 April 1927
May
126.2 mm (5.0 in)
24 May 1913
Jun
127.3 mm (5.0 in)
21 June 1972
Jul
99.1 mm (3.9 in)
14 July 1912
Aug
195.6 mm (7.7 in)
11 August 1928
Sep
118.4 mm (4.7 in)
5 September 1935
Oct
87.4 mm (3.4 in)
29 October 1953
Nov
62.0 mm (2.4 in)
6 November 1963
Dec
63.2 mm (2.5 in)
21 December 1905
Period of Record Coverage
1896 to 1976
Complete yearUnder 90 percent of days
81 years of record at Quantico 1 S, 1896 to 1976. 33 years have data for under 90 percent of days and are left out of rankings: 1896, 1897, 1898, 1900, 1901, 1902, 1903, 1904 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 42 complete years at Quantico 1 S, 1906 to 1975. Blue stripes are years cooler than the station's own mean of 13.4 C (56.1 F); red stripes are warmer. The coolest year was 1907, at 11.8 C (53.2 F), and the warmest was 1949, at 14.5 C (58.2 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Quantico 1 S as warming stripes, 1906 to 1975
Year
Annual mean temperature
Difference from the station mean
1906
13.4 C
+0.04 C
1907
11.8 C
-1.64 C
1908
12.6 C
-0.83 C
1909
13.0 C
-0.41 C
1910
12.5 C
-0.94 C
1911
13.8 C
+0.44 C
1912
12.3 C
-1.07 C
1913
13.4 C
-0.01 C
1915
12.7 C
-0.65 C
1916
13.4 C
-0.04 C
1922
13.4 C
+0.05 C
1923
13.9 C
+0.52 C
1935
12.6 C
-0.77 C
1940
12.2 C
-1.21 C
1941
13.9 C
+0.48 C
1942
13.6 C
+0.18 C
1943
13.3 C
-0.07 C
1946
14.1 C
+0.67 C
1947
13.1 C
-0.26 C
1948
13.3 C
-0.09 C
1949
14.5 C
+1.15 C
1950
13.5 C
+0.14 C
1951
13.6 C
+0.25 C
1952
13.7 C
+0.32 C
1953
14.4 C
+1.02 C
1954
14.0 C
+0.64 C
1955
13.8 C
+0.39 C
1956
13.7 C
+0.30 C
1957
13.8 C
+0.45 C
1958
12.9 C
-0.53 C
1959
14.3 C
+0.88 C
1960
12.9 C
-0.51 C
1961
13.3 C
-0.09 C
1962
13.0 C
-0.40 C
1963
12.8 C
-0.59 C
1965
13.3 C
-0.10 C
1966
13.3 C
-0.06 C
1967
13.0 C
-0.36 C
1968
13.7 C
+0.33 C
1971
13.8 C
+0.42 C
1974
14.2 C
+0.78 C
1975
14.5 C
+1.08 C
The annual mean temperature here has risen by 0.13 C (0.05 to 0.22) per decade over 1906 to 1975. In Fahrenheit: 0.2 F (0.1 to 0.4) 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 Quantico 1 S
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.13 C (0.05 to 0.22) per decade
0.2 F (0.1 to 0.4) per decade
1906 to 1975
42
Rise
Mean daily maximum
-0.04 C (-0.14 to 0.05) per decade
-0.1 F (-0.3 to 0.1) per decade
1906 to 1975
42
Not clearly different from zero
Mean daily minimum
0.3 C (0.2 to 0.4) per decade
0.6 F (0.4 to 0.7) per decade
1906 to 1975
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
1896 to 1976
Yearly extremes at Quantico 1 S: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1919
36.1 C (97.0 F)
81
Coldest night (TNn)
-28.9 C (-20.0 F)
1899
-15.0 C (5.0 F)
81
Wettest day (Rx1day)
195.6 mm (7.7 in)
1928
61.7 mm (2.4 in)
77
Wettest five days (Rx5day)
217.3 mm (8.6 in)
1972
88.7 mm (3.5 in)
73
Longest dry spell (CDD)
42 days
1909
20 days
75
Hottest day (TXx)
The hottest day of the year at Quantico 1 S, 1896 to 1976. The record is 42.8 C (109.0 F) in 1919, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Quantico 1 S by year
Year
Hottest day (TXx)
1896
37.8 C (100.0 F)
1897
35.0 C (95.0 F)
1898
35.6 C (96.1 F)
1899
35.6 C (96.1 F)
1900
38.3 C (100.9 F)
1901
40.0 C (104.0 F)
1902
37.8 C (100.0 F)
1903
37.2 C (99.0 F)
1904
36.1 C (97.0 F)
1905
35.0 C (95.0 F)
1906
35.0 C (95.0 F)
1907
34.4 C (93.9 F)
1908
37.2 C (99.0 F)
1909
35.0 C (95.0 F)
1910
35.0 C (95.0 F)
1911
38.3 C (100.9 F)
1912
35.6 C (96.1 F)
1913
35.0 C (95.0 F)
1914
36.7 C (98.1 F)
1915
35.6 C (96.1 F)
1916
33.9 C (93.0 F)
1917
33.3 C (91.9 F)
1918
30.0 C (86.0 F)
1919
42.8 C (109.0 F)
1920
38.9 C (102.0 F)
1921
38.9 C (102.0 F)
1922
35.0 C (95.0 F)
1923
36.1 C (97.0 F)
1924
37.2 C (99.0 F)
1925
37.8 C (100.0 F)
1926
35.6 C (96.1 F)
1927
34.4 C (93.9 F)
1928
35.6 C (96.1 F)
1929
35.6 C (96.1 F)
1930
40.6 C (105.1 F)
1931
37.2 C (99.0 F)
1932
36.7 C (98.1 F)
1933
36.1 C (97.0 F)
1934
37.2 C (99.0 F)
1935
36.7 C (98.1 F)
1936
38.3 C (100.9 F)
1937
36.1 C (97.0 F)
1938
35.0 C (95.0 F)
1939
38.3 C (100.9 F)
1940
37.8 C (100.0 F)
1941
37.8 C (100.0 F)
1942
37.2 C (99.0 F)
1943
36.7 C (98.1 F)
1944
40.0 C (104.0 F)
1945
37.8 C (100.0 F)
1946
34.4 C (93.9 F)
1947
35.6 C (96.1 F)
1948
37.2 C (99.0 F)
1949
37.2 C (99.0 F)
1950
36.1 C (97.0 F)
1951
37.2 C (99.0 F)
1952
37.8 C (100.0 F)
1953
38.3 C (100.9 F)
1954
40.6 C (105.1 F)
1955
36.7 C (98.1 F)
1956
35.0 C (95.0 F)
1957
36.7 C (98.1 F)
1958
36.1 C (97.0 F)
1959
37.2 C (99.0 F)
1960
35.0 C (95.0 F)
1961
35.0 C (95.0 F)
1962
35.0 C (95.0 F)
1963
36.1 C (97.0 F)
1964
38.9 C (102.0 F)
1965
35.0 C (95.0 F)
1966
37.2 C (99.0 F)
1967
35.0 C (95.0 F)
1968
36.7 C (98.1 F)
1969
35.6 C (96.1 F)
1970
34.4 C (93.9 F)
1971
33.3 C (91.9 F)
1972
36.1 C (97.0 F)
1973
35.0 C (95.0 F)
1974
35.0 C (95.0 F)
1975
37.8 C (100.0 F)
1976
27.8 C (82.0 F)
Coldest night (TNn)
The coldest night of the year at Quantico 1 S, 1896 to 1976. The record is -28.9 C (-20.0 F) in 1899, marked on the chart; the median year is -15.0 C (5.0 F).
Coldest night (TNn) at Quantico 1 S by year
Year
Coldest night (TNn)
1896
-12.2 C (10.0 F)
1897
-20.0 C (-4.0 F)
1898
-16.7 C (1.9 F)
1899
-28.9 C (-20.0 F)
1900
-16.7 C (1.9 F)
1901
-12.8 C (9.0 F)
1902
-14.4 C (6.1 F)
1903
-12.2 C (10.0 F)
1904
-19.4 C (-2.9 F)
1905
-17.2 C (1.0 F)
1906
-13.3 C (8.1 F)
1907
-15.6 C (3.9 F)
1908
-15.6 C (3.9 F)
1909
-15.6 C (3.9 F)
1910
-16.1 C (3.0 F)
1911
-11.7 C (10.9 F)
1912
-17.8 C (0.0 F)
1913
-13.3 C (8.1 F)
1914
-18.9 C (-2.0 F)
1915
-12.8 C (9.0 F)
1916
-17.2 C (1.0 F)
1917
-16.7 C (1.9 F)
1918
-11.1 C (12.0 F)
1919
-15.6 C (3.9 F)
1920
-15.0 C (5.0 F)
1921
-12.8 C (9.0 F)
1922
-11.1 C (12.0 F)
1923
-12.2 C (10.0 F)
1924
-16.7 C (1.9 F)
1925
-15.6 C (3.9 F)
1926
-15.6 C (3.9 F)
1927
-13.3 C (8.1 F)
1928
-16.1 C (3.0 F)
1929
-15.0 C (5.0 F)
1930
-15.0 C (5.0 F)
1931
-12.8 C (9.0 F)
1932
-10.0 C (14.0 F)
1933
-13.3 C (8.1 F)
1934
-20.6 C (-5.1 F)
1935
-18.9 C (-2.0 F)
1936
-21.1 C (-6.0 F)
1937
-10.0 C (14.0 F)
1938
-10.6 C (12.9 F)
1939
-8.9 C (16.0 F)
1940
-19.4 C (-2.9 F)
1941
-11.7 C (10.9 F)
1942
-18.9 C (-2.0 F)
1943
-14.4 C (6.1 F)
1944
-11.1 C (12.0 F)
1945
-12.2 C (10.0 F)
1946
-14.4 C (6.1 F)
1947
-14.4 C (6.1 F)
1948
-17.8 C (0.0 F)
1949
-10.6 C (12.9 F)
1950
-12.2 C (10.0 F)
1951
-15.6 C (3.9 F)
1952
-12.2 C (10.0 F)
1953
-12.2 C (10.0 F)
1954
-11.7 C (10.9 F)
1955
-15.6 C (3.9 F)
1956
-8.9 C (16.0 F)
1957
-18.3 C (-0.9 F)
1958
-15.0 C (5.0 F)
1959
-16.7 C (1.9 F)
1960
-15.0 C (5.0 F)
1961
-20.6 C (-5.1 F)
1962
-15.0 C (5.0 F)
1963
-14.4 C (6.1 F)
1964
-16.1 C (3.0 F)
1965
-17.8 C (0.0 F)
1966
-16.7 C (1.9 F)
1967
-12.8 C (9.0 F)
1968
-16.7 C (1.9 F)
1969
-10.6 C (12.9 F)
1970
-16.7 C (1.9 F)
1971
-15.6 C (3.9 F)
1972
-16.1 C (3.0 F)
1973
-11.7 C (10.9 F)
1974
-9.4 C (15.1 F)
1975
-8.3 C (17.1 F)
1976
-13.9 C (7.0 F)
Wettest day (Rx1day)
The wettest day of the year at Quantico 1 S, 1896 to 1976. The record is 195.6 mm (7.7 in) in 1928, marked on the chart; the median year is 61.7 mm (2.4 in).
Wettest day (Rx1day) at Quantico 1 S by year
Year
Wettest day (Rx1day)
1896
12.7 mm (0.5 in)
1897
13.2 mm (0.5 in)
1898
n/a
1899
8.9 mm (0.35 in)
1900
0.0 mm (0.00 in)
1901
n/a
1902
2.5 mm (0.10 in)
1903
n/a
1904
n/a
1905
79.5 mm (3.1 in)
1906
90.2 mm (3.6 in)
1907
91.4 mm (3.6 in)
1908
82.8 mm (3.3 in)
1909
75.9 mm (3.0 in)
1910
75.4 mm (3.0 in)
1911
86.9 mm (3.4 in)
1912
99.1 mm (3.9 in)
1913
126.2 mm (5.0 in)
1914
47.5 mm (1.9 in)
1915
98.6 mm (3.9 in)
1916
39.4 mm (1.6 in)
1917
37.6 mm (1.5 in)
1918
24.1 mm (0.9 in)
1919
50.8 mm (2.0 in)
1920
35.6 mm (1.4 in)
1921
60.2 mm (2.4 in)
1922
41.9 mm (1.6 in)
1923
65.5 mm (2.6 in)
1924
106.7 mm (4.2 in)
1925
39.1 mm (1.5 in)
1926
50.3 mm (2.0 in)
1927
88.9 mm (3.5 in)
1928
195.6 mm (7.7 in)
1929
40.9 mm (1.6 in)
1930
40.6 mm (1.6 in)
1931
57.2 mm (2.3 in)
1932
64.8 mm (2.6 in)
1933
79.2 mm (3.1 in)
1934
102.1 mm (4.0 in)
1935
118.4 mm (4.7 in)
1936
45.5 mm (1.8 in)
1937
56.4 mm (2.2 in)
1938
62.2 mm (2.4 in)
1939
48.3 mm (1.9 in)
1940
56.6 mm (2.2 in)
1941
43.2 mm (1.7 in)
1942
101.3 mm (4.0 in)
1943
34.0 mm (1.3 in)
1944
65.5 mm (2.6 in)
1945
90.4 mm (3.6 in)
1946
45.7 mm (1.8 in)
1947
105.2 mm (4.1 in)
1948
73.4 mm (2.9 in)
1949
49.0 mm (1.9 in)
1950
80.0 mm (3.1 in)
1951
67.3 mm (2.6 in)
1952
52.8 mm (2.1 in)
1953
87.4 mm (3.4 in)
1954
61.0 mm (2.4 in)
1955
111.5 mm (4.4 in)
1956
50.3 mm (2.0 in)
1957
89.4 mm (3.5 in)
1958
119.4 mm (4.7 in)
1959
72.4 mm (2.9 in)
1960
61.7 mm (2.4 in)
1961
47.8 mm (1.9 in)
1962
35.1 mm (1.4 in)
1963
62.0 mm (2.4 in)
1964
35.8 mm (1.4 in)
1965
45.5 mm (1.8 in)
1966
80.3 mm (3.2 in)
1967
32.8 mm (1.3 in)
1968
70.1 mm (2.8 in)
1969
56.9 mm (2.2 in)
1970
61.2 mm (2.4 in)
1971
111.0 mm (4.4 in)
1972
127.3 mm (5.0 in)
1973
74.4 mm (2.9 in)
1974
61.0 mm (2.4 in)
1975
116.3 mm (4.6 in)
1976
36.3 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Quantico 1 S, 1896 to 1976. The record is 217.3 mm (8.6 in) in 1972, marked on the chart; the median year is 88.7 mm (3.5 in).
Wettest five days (Rx5day) at Quantico 1 S by year
Year
Wettest five days (Rx5day)
1896
n/a
1897
13.2 mm (0.5 in)
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
119.9 mm (4.7 in)
1906
181.6 mm (7.1 in)
1907
123.0 mm (4.8 in)
1908
122.5 mm (4.8 in)
1909
98.5 mm (3.9 in)
1910
110.8 mm (4.4 in)
1911
96.3 mm (3.8 in)
1912
138.5 mm (5.5 in)
1913
199.9 mm (7.9 in)
1914
47.5 mm (1.9 in)
1915
120.1 mm (4.7 in)
1916
58.2 mm (2.3 in)
1917
97.8 mm (3.9 in)
1918
53.3 mm (2.1 in)
1919
137.2 mm (5.4 in)
1920
48.3 mm (1.9 in)
1921
61.7 mm (2.4 in)
1922
38.1 mm (1.5 in)
1923
76.4 mm (3.0 in)
1924
108.0 mm (4.3 in)
1925
49.1 mm (1.9 in)
1926
84.8 mm (3.3 in)
1927
58.4 mm (2.3 in)
1928
70.1 mm (2.8 in)
1929
88.3 mm (3.5 in)
1930
53.5 mm (2.1 in)
1931
90.4 mm (3.6 in)
1932
96.3 mm (3.8 in)
1933
83.6 mm (3.3 in)
1934
122.7 mm (4.8 in)
1935
179.2 mm (7.1 in)
1936
87.6 mm (3.4 in)
1937
76.5 mm (3.0 in)
1938
72.6 mm (2.9 in)
1939
92.7 mm (3.6 in)
1940
79.5 mm (3.1 in)
1941
77.2 mm (3.0 in)
1942
175.0 mm (6.9 in)
1943
54.3 mm (2.1 in)
1944
87.4 mm (3.4 in)
1945
150.3 mm (5.9 in)
1946
71.9 mm (2.8 in)
1947
112.8 mm (4.4 in)
1948
118.7 mm (4.7 in)
1949
58.6 mm (2.3 in)
1950
156.8 mm (6.2 in)
1951
95.2 mm (3.7 in)
1952
83.8 mm (3.3 in)
1953
120.9 mm (4.8 in)
1954
76.2 mm (3.0 in)
1955
166.8 mm (6.6 in)
1956
86.4 mm (3.4 in)
1957
89.4 mm (3.5 in)
1958
179.9 mm (7.1 in)
1959
109.4 mm (4.3 in)
1960
112.4 mm (4.4 in)
1961
77.6 mm (3.1 in)
1962
52.7 mm (2.1 in)
1963
88.7 mm (3.5 in)
1964
71.6 mm (2.8 in)
1965
54.1 mm (2.1 in)
1966
88.7 mm (3.5 in)
1967
50.3 mm (2.0 in)
1968
75.7 mm (3.0 in)
1969
57.7 mm (2.3 in)
1970
100.6 mm (4.0 in)
1971
111.0 mm (4.4 in)
1972
217.3 mm (8.6 in)
1973
124.0 mm (4.9 in)
1974
111.6 mm (4.4 in)
1975
203.7 mm (8.0 in)
1976
67.8 mm (2.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Quantico 1 S, 1896 to 1976. The record is 42 days in 1909, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Quantico 1 S by year
Year
Longest dry spell (CDD)
1896
n/a
1897
29 days
1898
n/a
1899
1 day
1900
1 day
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
32 days
1906
26 days
1907
20 days
1908
19 days
1909
42 days
1910
35 days
1911
30 days
1912
20 days
1913
23 days
1914
22 days
1915
30 days
1916
12 days
1917
13 days
1918
27 days
1919
16 days
1920
31 days
1921
30 days
1922
18 days
1923
25 days
1924
28 days
1925
15 days
1926
20 days
1927
14 days
1928
16 days
1929
13 days
1930
22 days
1931
20 days
1932
15 days
1933
11 days
1934
25 days
1935
15 days
1936
23 days
1937
20 days
1938
20 days
1939
21 days
1940
13 days
1941
15 days
1942
21 days
1943
21 days
1944
12 days
1945
14 days
1946
17 days
1947
13 days
1948
12 days
1949
17 days
1950
15 days
1951
13 days
1952
22 days
1953
20 days
1954
20 days
1955
19 days
1956
16 days
1957
23 days
1958
17 days
1959
21 days
1960
12 days
1961
14 days
1962
14 days
1963
28 days
1964
21 days
1965
32 days
1966
27 days
1967
31 days
1968
26 days
1969
18 days
1970
16 days
1971
17 days
1972
15 days
1973
22 days
1974
27 days
1975
15 days
1976
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
42 years with a frost
Across 42 years with a frost, the median last spring frost at Quantico 1 S falls on 15 April and the median first autumn frost on 31 October, which leaves a median of 198 days between them.
Fitted over all years, the growing season changes by +4.4 days per decade at this station.
Frost dates and growing season at Quantico 1 S
Measure
Median, all years
Earliest period
Recent period (1935 to 1975)
Recent against earliest
Fitted trend
Last spring frost
15 April
n/a
11 April
n/a
-2.9 days per decade
First autumn frost
31 October
n/a
3 November
n/a
+1.5 days per decade
Growing days
198 days
n/a
203 days
n/a
+4.4 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
42 years, 1906 to 1975
A day with at least 68.6 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 142.8 mm (5.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Quantico 1 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
68.6 mm (2.7 in)
5 years
91.1 mm (3.6 in)
10 years
104.9 mm (4.1 in)
25 years
121.1 mm (4.8 in)
50 years
132.3 mm (5.2 in)
Longer than the 42 years of record
100 years
142.8 mm (5.6 in)
Longer than the 42 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, 42 years of values from 1906 to 1975.
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: 126.2 mm (5.0 in) in 1913; 119.4 mm (4.7 in) in 1958; 116.3 mm (4.6 in) in 1975.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Quantico 1 S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Quantico 1 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.