Record envelope, standing records and threshold days for Callaville (USC00441200), Virginia, United States, with 52 years of record.
Key Facts for Callaville
Callaville (USC00441200) is a weather station in Virginia, United States at 36.83 latitude and -77.68 longitude, 79 m (260 ft) above sea level.
The station reports from 1894 to 1945, 52 years of record.
1,464 records set at Callaville still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Callaville set a daily record high minimum temperature of 17.2 C (63.0 F) on 30 March 1945.
About the Station
Location: Virginia, United States, 36.83 latitude, -77.68 longitude.
Elevation: 79 m (260 ft).
Period of record: 1894 to 1945, 52 years.
Eligible elements: tmax, tmin, prcp.
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 Callaville. 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 Callaville, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.2 C (81.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Feb
27.2 C (81.0 F)
-21.7 C (-7.1 F)
n/a
n/a
Mar
33.9 C (93.0 F)
-16.7 C (1.9 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-8.9 C (16.0 F)
n/a
n/a
May
37.8 C (100.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
38.3 C (100.9 F)
2.8 C (37.0 F)
n/a
n/a
Jul
40.0 C (104.0 F)
7.8 C (46.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
7.2 C (45.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
1.1 C (34.0 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-6.1 C (21.0 F)
n/a
n/a
Nov
28.3 C (82.9 F)
-12.8 C (9.0 F)
n/a
n/a
Dec
26.7 C (80.1 F)
-21.1 C (-6.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Callaville still stand. 1930 holds the most, with 52.
Standing records at Callaville by the year they were set
Year set
Standing records
1894
4
1895
36
1896
46
1897
11
1898
21
1899
30
1900
35
1901
28
1902
14
1903
20
1904
19
1905
15
1906
28
1907
26
1908
9
1909
14
1910
16
1911
16
1912
42
1913
29
1914
49
1915
26
1916
25
1917
39
1918
46
1919
26
1920
27
1921
31
1922
17
1923
33
1924
30
1925
33
1926
34
1927
36
1928
22
1929
37
1930
52
1931
34
1932
34
1933
34
1934
42
1935
31
1936
38
1937
23
1938
13
1939
26
1940
39
1941
38
1942
28
1943
33
1944
18
1945
11
All-Time Record Progression
2 new records
2 all-time records were set at Callaville between 22 June 1931 and 15 August 1940. Each dot is a new record.
When Callaville set new all-time records
Date
Kind
Detail
1931-06-22
Record high minimum temperature
Record high minimum temperature 27.8 C (82.0 F)
1940-08-15
Record daily precipitation
Record daily precipitation 176.0 mm (6.9 in)
Wettest Day of Each Month
Aug: 176.0 mm (6.9 in)
The wettest day on record for each calendar month at Callaville. The most was 176.0 mm (6.9 in) on 15 August 1940.
Record daily precipitation for each month at Callaville
Month
Record daily precipitation (mm)
Date
Jan
54.6 mm (2.1 in)
12 January 1908
Feb
83.8 mm (3.3 in)
5 February 1896
Mar
129.5 mm (5.1 in)
22 March 1903
Apr
94.0 mm (3.7 in)
8 April 1895
May
98.6 mm (3.9 in)
15 May 1934
Jun
86.4 mm (3.4 in)
26 June 1918
Jul
122.9 mm (4.8 in)
17 July 1919
Aug
176.0 mm (6.9 in)
15 August 1940
Sep
120.1 mm (4.7 in)
6 September 1935
Oct
94.0 mm (3.7 in)
22 October 1929
Nov
67.3 mm (2.6 in)
3 November 1900
Dec
56.9 mm (2.2 in)
2 December 1925
Period of Record Coverage
1894 to 1945
Complete yearUnder 90 percent of days
52 years of record at Callaville, 1894 to 1945. 7 years have data for under 90 percent of days and are left out of rankings: 1894, 1902, 1907, 1908, 1910, 1911, 1945.
Cooler than the station meanWarmer than the station mean
One stripe for each of 43 complete years at Callaville, 1895 to 1944. Blue stripes are years cooler than the station's own mean of 14.3 C (57.7 F); red stripes are warmer. The coolest year was 1924, at 13.1 C (55.6 F), and the warmest was 1913, at 15.4 C (59.7 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Callaville as warming stripes, 1895 to 1944
Year
Annual mean temperature
Difference from the station mean
1895
13.5 C
-0.79 C
1896
14.6 C
+0.29 C
1897
14.4 C
+0.07 C
1898
14.3 C
+0.03 C
1899
13.7 C
-0.58 C
1900
14.7 C
+0.40 C
1901
13.7 C
-0.64 C
1903
13.6 C
-0.66 C
1904
13.6 C
-0.73 C
1906
15.0 C
+0.72 C
1909
14.5 C
+0.15 C
1912
14.5 C
+0.18 C
1913
15.4 C
+1.07 C
1914
14.3 C
-0.02 C
1915
14.4 C
+0.14 C
1916
14.5 C
+0.19 C
1917
13.2 C
-1.08 C
1918
13.8 C
-0.46 C
1919
14.5 C
+0.16 C
1920
13.3 C
-1.00 C
1921
15.1 C
+0.84 C
1923
14.0 C
-0.31 C
1924
13.1 C
-1.19 C
1925
14.7 C
+0.40 C
1926
14.0 C
-0.32 C
1927
14.2 C
-0.12 C
1928
14.1 C
-0.19 C
1929
14.2 C
-0.09 C
1930
14.0 C
-0.26 C
1931
14.8 C
+0.47 C
1932
14.7 C
+0.40 C
1933
15.0 C
+0.70 C
1934
14.1 C
-0.21 C
1935
13.5 C
-0.79 C
1936
14.1 C
-0.20 C
1937
14.4 C
+0.14 C
1938
15.2 C
+0.93 C
1939
15.2 C
+0.88 C
1940
13.5 C
-0.77 C
1941
15.0 C
+0.68 C
1942
15.0 C
+0.72 C
1943
14.9 C
+0.61 C
1944
14.6 C
+0.34 C
The fitted trend in annual mean temperature here over 1895 to 1944 is 0.10 C (-0.02 to 0.22) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.18 F (-0.03 to 0.40) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Callaville
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.10 C (-0.02 to 0.22) per decade
0.18 F (-0.03 to 0.40) per decade
1895 to 1944
43
Not clearly different from zero
Mean daily maximum
0.3 C (0.1 to 0.5) per decade
0.5 F (0.2 to 0.8) per decade
1895 to 1944
43
Rise
Mean daily minimum
-0.09 C (-0.23 to 0.04) per decade
-0.2 F (-0.4 to 0.1) per decade
1895 to 1944
43
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
1894 to 1945
Yearly extremes at Callaville: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1900
36.7 C (98.1 F)
52
Coldest night (TNn)
-24.4 C (-11.9 F)
1918
-14.4 C (6.1 F)
52
Wettest day (Rx1day)
176.0 mm (6.9 in)
1940
66.0 mm (2.6 in)
52
Wettest five days (Rx5day)
349.0 mm (13.7 in)
1940
112.5 mm (4.4 in)
51
Longest dry spell (CDD)
42 days
1936
22 days
52
Hottest day (TXx)
The hottest day of the year at Callaville, 1894 to 1945. The record is 40.0 C (104.0 F) in 1900, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Callaville by year
Year
Hottest day (TXx)
1894
26.1 C (79.0 F)
1895
35.6 C (96.1 F)
1896
36.1 C (97.0 F)
1897
35.6 C (96.1 F)
1898
35.0 C (95.0 F)
1899
37.2 C (99.0 F)
1900
40.0 C (104.0 F)
1901
35.6 C (96.1 F)
1902
37.2 C (99.0 F)
1903
35.0 C (95.0 F)
1904
35.6 C (96.1 F)
1905
36.1 C (97.0 F)
1906
35.0 C (95.0 F)
1907
35.0 C (95.0 F)
1908
31.7 C (89.1 F)
1909
34.4 C (93.9 F)
1910
33.9 C (93.0 F)
1911
38.9 C (102.0 F)
1912
37.8 C (100.0 F)
1913
37.2 C (99.0 F)
1914
38.3 C (100.9 F)
1915
37.2 C (99.0 F)
1916
35.6 C (96.1 F)
1917
36.7 C (98.1 F)
1918
40.0 C (104.0 F)
1919
35.6 C (96.1 F)
1920
36.1 C (97.0 F)
1921
38.3 C (100.9 F)
1922
34.4 C (93.9 F)
1923
37.2 C (99.0 F)
1924
37.2 C (99.0 F)
1925
37.2 C (99.0 F)
1926
39.4 C (102.9 F)
1927
35.6 C (96.1 F)
1928
36.1 C (97.0 F)
1929
36.1 C (97.0 F)
1930
38.9 C (102.0 F)
1931
37.2 C (99.0 F)
1932
40.0 C (104.0 F)
1933
37.8 C (100.0 F)
1934
37.2 C (99.0 F)
1935
36.1 C (97.0 F)
1936
37.8 C (100.0 F)
1937
36.7 C (98.1 F)
1938
36.7 C (98.1 F)
1939
35.6 C (96.1 F)
1940
40.0 C (104.0 F)
1941
37.8 C (100.0 F)
1942
38.3 C (100.9 F)
1943
38.3 C (100.9 F)
1944
38.3 C (100.9 F)
1945
33.9 C (93.0 F)
Coldest night (TNn)
The coldest night of the year at Callaville, 1894 to 1945. The record is -24.4 C (-11.9 F) in 1918, marked on the chart; the median year is -14.4 C (6.1 F).
Coldest night (TNn) at Callaville by year
Year
Coldest night (TNn)
1894
-12.8 C (9.0 F)
1895
-17.2 C (1.0 F)
1896
-14.4 C (6.1 F)
1897
-15.6 C (3.9 F)
1898
-13.9 C (7.0 F)
1899
-18.9 C (-2.0 F)
1900
-13.9 C (7.0 F)
1901
-15.6 C (3.9 F)
1902
-12.2 C (10.0 F)
1903
-11.1 C (12.0 F)
1904
-15.6 C (3.9 F)
1905
-14.4 C (6.1 F)
1906
-12.8 C (9.0 F)
1907
-14.4 C (6.1 F)
1908
-10.0 C (14.0 F)
1909
-11.1 C (12.0 F)
1910
-13.3 C (8.1 F)
1911
-8.3 C (17.1 F)
1912
-17.2 C (1.0 F)
1913
-10.0 C (14.0 F)
1914
-15.6 C (3.9 F)
1915
-11.1 C (12.0 F)
1916
-15.6 C (3.9 F)
1917
-19.4 C (-2.9 F)
1918
-24.4 C (-11.9 F)
1919
-12.2 C (10.0 F)
1920
-16.7 C (1.9 F)
1921
-11.1 C (12.0 F)
1922
-18.3 C (-0.9 F)
1923
-13.3 C (8.1 F)
1924
-16.1 C (3.0 F)
1925
-13.9 C (7.0 F)
1926
-14.4 C (6.1 F)
1927
-17.2 C (1.0 F)
1928
-15.6 C (3.9 F)
1929
-11.7 C (10.9 F)
1930
-13.9 C (7.0 F)
1931
-12.8 C (9.0 F)
1932
-13.9 C (7.0 F)
1933
-12.8 C (9.0 F)
1934
-18.3 C (-0.9 F)
1935
-19.4 C (-2.9 F)
1936
-21.7 C (-7.1 F)
1937
-16.7 C (1.9 F)
1938
-11.1 C (12.0 F)
1939
-11.7 C (10.9 F)
1940
-23.9 C (-11.0 F)
1941
-11.1 C (12.0 F)
1942
-21.1 C (-6.0 F)
1943
-15.0 C (5.0 F)
1944
-16.7 C (1.9 F)
1945
-12.2 C (10.0 F)
Wettest day (Rx1day)
The wettest day of the year at Callaville, 1894 to 1945. The record is 176.0 mm (6.9 in) in 1940, marked on the chart; the median year is 66.0 mm (2.6 in).
Wettest day (Rx1day) at Callaville by year
Year
Wettest day (Rx1day)
1894
20.8 mm (0.8 in)
1895
94.5 mm (3.7 in)
1896
91.2 mm (3.6 in)
1897
58.4 mm (2.3 in)
1898
50.8 mm (2.0 in)
1899
67.6 mm (2.7 in)
1900
67.3 mm (2.6 in)
1901
92.7 mm (3.6 in)
1902
56.1 mm (2.2 in)
1903
129.5 mm (5.1 in)
1904
108.7 mm (4.3 in)
1905
50.3 mm (2.0 in)
1906
74.9 mm (2.9 in)
1907
61.0 mm (2.4 in)
1908
54.6 mm (2.1 in)
1909
68.8 mm (2.7 in)
1910
80.0 mm (3.1 in)
1911
41.9 mm (1.6 in)
1912
45.7 mm (1.8 in)
1913
60.7 mm (2.4 in)
1914
52.6 mm (2.1 in)
1915
49.5 mm (1.9 in)
1916
60.2 mm (2.4 in)
1917
69.1 mm (2.7 in)
1918
88.1 mm (3.5 in)
1919
122.9 mm (4.8 in)
1920
58.9 mm (2.3 in)
1921
43.7 mm (1.7 in)
1922
73.2 mm (2.9 in)
1923
65.5 mm (2.6 in)
1924
71.4 mm (2.8 in)
1925
56.9 mm (2.2 in)
1926
52.8 mm (2.1 in)
1927
68.1 mm (2.7 in)
1928
71.1 mm (2.8 in)
1929
94.0 mm (3.7 in)
1930
57.9 mm (2.3 in)
1931
86.4 mm (3.4 in)
1932
58.9 mm (2.3 in)
1933
40.6 mm (1.6 in)
1934
98.6 mm (3.9 in)
1935
120.1 mm (4.7 in)
1936
47.0 mm (1.9 in)
1937
80.0 mm (3.1 in)
1938
59.7 mm (2.4 in)
1939
55.4 mm (2.2 in)
1940
176.0 mm (6.9 in)
1941
66.5 mm (2.6 in)
1942
79.2 mm (3.1 in)
1943
52.8 mm (2.1 in)
1944
74.2 mm (2.9 in)
1945
50.0 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Callaville, 1894 to 1945. The record is 349.0 mm (13.7 in) in 1940, marked on the chart; the median year is 112.5 mm (4.4 in).
Wettest five days (Rx5day) at Callaville by year
Year
Wettest five days (Rx5day)
1894
n/a
1895
120.2 mm (4.7 in)
1896
176.4 mm (6.9 in)
1897
61.5 mm (2.4 in)
1898
57.9 mm (2.3 in)
1899
52.4 mm (2.1 in)
1900
103.2 mm (4.1 in)
1901
120.7 mm (4.8 in)
1902
96.7 mm (3.8 in)
1903
160.0 mm (6.3 in)
1904
137.1 mm (5.4 in)
1905
101.1 mm (4.0 in)
1906
191.5 mm (7.5 in)
1907
82.8 mm (3.3 in)
1908
94.0 mm (3.7 in)
1909
119.4 mm (4.7 in)
1910
154.9 mm (6.1 in)
1911
86.6 mm (3.4 in)
1912
81.3 mm (3.2 in)
1913
94.0 mm (3.7 in)
1914
69.1 mm (2.7 in)
1915
92.7 mm (3.6 in)
1916
115.5 mm (4.5 in)
1917
126.7 mm (5.0 in)
1918
110.1 mm (4.3 in)
1919
282.6 mm (11.1 in)
1920
116.3 mm (4.6 in)
1921
75.5 mm (3.0 in)
1922
140.8 mm (5.5 in)
1923
116.3 mm (4.6 in)
1924
152.7 mm (6.0 in)
1925
105.9 mm (4.2 in)
1926
113.9 mm (4.5 in)
1927
101.6 mm (4.0 in)
1928
105.7 mm (4.2 in)
1929
148.6 mm (5.9 in)
1930
62.5 mm (2.5 in)
1931
121.4 mm (4.8 in)
1932
89.7 mm (3.5 in)
1933
66.6 mm (2.6 in)
1934
114.3 mm (4.5 in)
1935
159.4 mm (6.3 in)
1936
91.2 mm (3.6 in)
1937
129.5 mm (5.1 in)
1938
146.6 mm (5.8 in)
1939
121.7 mm (4.8 in)
1940
349.0 mm (13.7 in)
1941
112.5 mm (4.4 in)
1942
121.3 mm (4.8 in)
1943
80.0 mm (3.1 in)
1944
107.2 mm (4.2 in)
1945
62.7 mm (2.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Callaville, 1894 to 1945. The record is 42 days in 1936, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Callaville by year
Year
Longest dry spell (CDD)
1894
1 day
1895
8 days
1896
2 days
1897
1 day
1898
17 days
1899
3 days
1900
24 days
1901
16 days
1902
20 days
1903
29 days
1904
35 days
1905
13 days
1906
20 days
1907
19 days
1908
25 days
1909
19 days
1910
21 days
1911
22 days
1912
20 days
1913
23 days
1914
20 days
1915
36 days
1916
20 days
1917
28 days
1918
26 days
1919
23 days
1920
26 days
1921
26 days
1922
25 days
1923
25 days
1924
26 days
1925
24 days
1926
20 days
1927
15 days
1928
22 days
1929
19 days
1930
30 days
1931
29 days
1932
21 days
1933
27 days
1934
28 days
1935
21 days
1936
42 days
1937
24 days
1938
16 days
1939
19 days
1940
13 days
1941
30 days
1942
26 days
1943
23 days
1944
24 days
1945
16 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
43 years with a frost
Across 43 years with a frost, the median last spring frost at Callaville falls on 18 April and the median first autumn frost on 19 October, which leaves a median of 183 days between them.
Fitted over all years, the growing season changes by -2.3 days per decade at this station.
Frost dates and growing season at Callaville
Measure
Median, all years
Earliest period
Recent period (1914 to 1944)
Recent against earliest
Fitted trend
Last spring frost
18 April
n/a
23 April
n/a
+2.1 days per decade
First autumn frost
19 October
n/a
19 October
n/a
-0.2 days per decade
Growing days
183 days
n/a
183 days
n/a
-2.3 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
39 years, 1900 to 1944
A day with at least 65.6 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 187.7 mm (7.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Callaville: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
65.6 mm (2.6 in)
5 years
87.6 mm (3.4 in)
10 years
105.6 mm (4.2 in)
25 years
133.4 mm (5.3 in)
50 years
158.4 mm (6.2 in)
Longer than the 39 years of record
100 years
187.7 mm (7.4 in)
Longer than the 39 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, 39 years of values from 1900 to 1944.
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: 176.0 mm (6.9 in) in 1940; 129.5 mm (5.1 in) in 1903; 122.9 mm (4.8 in) in 1919.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Callaville, at 1918 and 1937. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1918 ran 0.5 C (0.8 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1937 ran 0.4 C (0.7 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Callaville, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1918
-0.4
-0.8
likely
5
1937
+0.4
+0.7
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 Callaville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Callaville 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.