Record envelope, standing records and threshold days for Rock House (USC00317363), North Carolina, United States, with 59 years of record.
Key Facts for Rock House
Rock House (USC00317363) is a weather station in North Carolina, United States at 35.00 latitude and -83.10 longitude, 946 m (3,104 ft) above sea level.
The station reports from 1900 to 1958, 59 years of record.
1,464 records set at Rock House still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Rock House set a daily record low minimum temperature of 10.0 C (50.0 F) on 28 June 1958.
About the Station
Location: North Carolina, United States, 35.00 latitude, -83.10 longitude.
Elevation: 946 m (3,104 ft).
Period of record: 1900 to 1958, 59 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 Rock House. 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 Rock House, 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)
-21.1 C (-6.0 F)
n/a
n/a
Feb
25.0 C (77.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-15.6 C (3.9 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-8.3 C (17.1 F)
n/a
n/a
May
31.1 C (88.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
33.3 C (91.9 F)
4.4 C (39.9 F)
n/a
n/a
Jul
35.6 C (96.1 F)
8.9 C (48.0 F)
n/a
n/a
Aug
35.0 C (95.0 F)
7.2 C (45.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
1.1 C (34.0 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
25.6 C (78.1 F)
-17.8 C (0.0 F)
n/a
n/a
Dec
24.4 C (75.9 F)
-18.3 C (-0.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rock House still stand. 1925 holds the most, with 68.
Standing records at Rock House by the year they were set
Year set
Standing records
1900
36
1901
36
1902
33
1903
23
1904
12
1905
19
1906
21
1907
36
1908
19
1909
24
1910
39
1911
22
1912
17
1913
25
1914
31
1915
27
1916
19
1917
40
1918
34
1919
21
1920
22
1921
18
1922
11
1923
15
1924
35
1925
68
1926
23
1927
41
1928
26
1929
32
1930
38
1931
34
1932
23
1933
36
1934
21
1935
21
1936
25
1937
24
1938
25
1939
11
1940
32
1941
14
1942
15
1943
32
1944
23
1945
14
1946
13
1947
20
1948
17
1949
20
1950
26
1951
15
1952
29
1953
12
1954
37
1955
22
1956
16
1957
15
1958
9
All-Time Record Progression
4 new records
4 all-time records were set at Rock House between 30 June 1936 and 17 February 1958. Each dot is a new record.
When Rock House set new all-time records
Date
Kind
Detail
1936-06-30
Record high minimum temperature
Record high minimum temperature 23.3 C (73.9 F)
1940-08-29
Record daily precipitation
Record daily precipitation 333.5 mm (13.1 in)
1947-09-09
Record high maximum temperature
Record high maximum temperature 36.7 C (98.1 F)
1958-02-17
Record low maximum temperature
Record low maximum temperature -10.6 C (12.9 F)
Wettest Day of Each Month
Aug: 333.5 mm (13.1 in)
The wettest day on record for each calendar month at Rock House. The most was 333.5 mm (13.1 in) on 29 August 1940.
Record daily precipitation for each month at Rock House
Month
Record daily precipitation (mm)
Date
Jan
121.4 mm (4.8 in)
3 January 1906
Feb
134.6 mm (5.3 in)
27 February 1902
Mar
116.8 mm (4.6 in)
24 March 1917
Apr
144.8 mm (5.7 in)
19 April 1901
May
125.7 mm (4.9 in)
21 May 1901
Jun
255.3 mm (10.1 in)
29 June 1915
Jul
186.4 mm (7.3 in)
9 July 1916
Aug
333.5 mm (13.1 in)
29 August 1940
Sep
256.5 mm (10.1 in)
5 September 1948
Oct
223.5 mm (8.8 in)
15 October 1914
Nov
167.6 mm (6.6 in)
29 November 1914
Dec
148.6 mm (5.9 in)
17 December 1915
Period of Record Coverage
1900 to 1958
Complete yearUnder 90 percent of days
59 years of record at Rock House, 1900 to 1958. 3 years have data for under 90 percent of days and are left out of rankings: 1945, 1946, 1958.
Cooler than the station meanWarmer than the station mean
One stripe for each of 53 complete years at Rock House, 1900 to 1957. Blue stripes are years cooler than the station's own mean of 12.8 C (55.0 F); red stripes are warmer. The coolest year was 1917, at 11.4 C (52.5 F), and the warmest was 1949, at 13.7 C (56.7 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Rock House as warming stripes, 1900 to 1957
Year
Annual mean temperature
Difference from the station mean
1900
13.2 C
+0.40 C
1902
12.6 C
-0.15 C
1903
12.2 C
-0.59 C
1905
12.6 C
-0.17 C
1906
13.0 C
+0.19 C
1907
13.0 C
+0.24 C
1908
12.6 C
-0.22 C
1909
12.4 C
-0.40 C
1910
11.9 C
-0.92 C
1911
13.0 C
+0.25 C
1912
11.7 C
-1.08 C
1913
12.5 C
-0.25 C
1914
12.0 C
-0.81 C
1915
11.9 C
-0.89 C
1916
12.1 C
-0.68 C
1917
11.4 C
-1.42 C
1918
12.8 C
-0.03 C
1919
13.2 C
+0.42 C
1920
11.9 C
-0.92 C
1921
13.7 C
+0.91 C
1922
13.2 C
+0.36 C
1923
12.7 C
-0.14 C
1924
11.9 C
-0.85 C
1925
13.3 C
+0.55 C
1926
12.2 C
-0.60 C
1927
13.4 C
+0.63 C
1928
12.2 C
-0.64 C
1929
12.6 C
-0.24 C
1931
13.5 C
+0.71 C
1932
13.4 C
+0.61 C
1933
13.7 C
+0.89 C
1934
12.7 C
-0.05 C
1935
12.9 C
+0.07 C
1936
13.1 C
+0.34 C
1937
12.8 C
-0.04 C
1938
13.5 C
+0.68 C
1939
13.2 C
+0.42 C
1940
11.8 C
-1.02 C
1941
13.1 C
+0.27 C
1942
12.5 C
-0.27 C
1943
12.8 C
+0.03 C
1944
12.8 C
+0.01 C
1947
12.5 C
-0.25 C
1948
13.2 C
+0.36 C
1949
13.7 C
+0.94 C
1950
12.8 C
+0.03 C
1951
12.9 C
+0.13 C
1952
13.5 C
+0.73 C
1953
13.3 C
+0.48 C
1954
13.3 C
+0.52 C
1955
13.1 C
+0.32 C
1956
13.3 C
+0.47 C
1957
13.2 C
+0.44 C
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1900 to 1957. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 53 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Rock House
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (0.1 to 0.2) per decade
0.3 F (0.1 to 0.4) per decade
1900 to 1957
53
Rise
Mean daily maximum
0.3 C (0.2 to 0.3) per decade
0.5 F (0.3 to 0.6) per decade
1900 to 1957
53
Rise
Mean daily minimum
0.04 C (-0.05 to 0.13) per decade
0.1 F (-0.1 to 0.2) per decade
1900 to 1957
53
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
1900 to 1958
Yearly extremes at Rock House: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.7 C (98.1 F)
1947
31.7 C (89.1 F)
59
Coldest night (TNn)
-22.2 C (-8.0 F)
1917
-15.6 C (3.9 F)
59
Wettest day (Rx1day)
333.5 mm (13.1 in)
1940
101.6 mm (4.0 in)
59
Wettest five days (Rx5day)
471.3 mm (18.6 in)
1916
185.5 mm (7.3 in)
59
Longest dry spell (CDD)
30 days
1952
18 days
59
Hottest day (TXx)
The hottest day of the year at Rock House, 1900 to 1958. The record is 36.7 C (98.1 F) in 1947, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Rock House by year
Year
Hottest day (TXx)
1900
31.7 C (89.1 F)
1901
31.1 C (88.0 F)
1902
32.2 C (90.0 F)
1903
30.6 C (87.1 F)
1904
30.6 C (87.1 F)
1905
28.9 C (84.0 F)
1906
29.4 C (84.9 F)
1907
31.7 C (89.1 F)
1908
29.4 C (84.9 F)
1909
30.0 C (86.0 F)
1910
28.3 C (82.9 F)
1911
30.6 C (87.1 F)
1912
30.0 C (86.0 F)
1913
32.2 C (90.0 F)
1914
32.2 C (90.0 F)
1915
31.7 C (89.1 F)
1916
30.0 C (86.0 F)
1917
29.4 C (84.9 F)
1918
31.1 C (88.0 F)
1919
30.0 C (86.0 F)
1920
29.4 C (84.9 F)
1921
30.0 C (86.0 F)
1922
29.4 C (84.9 F)
1923
28.9 C (84.0 F)
1924
31.7 C (89.1 F)
1925
35.0 C (95.0 F)
1926
32.8 C (91.0 F)
1927
30.6 C (87.1 F)
1928
29.4 C (84.9 F)
1929
29.4 C (84.9 F)
1930
35.0 C (95.0 F)
1931
32.8 C (91.0 F)
1932
31.7 C (89.1 F)
1933
32.8 C (91.0 F)
1934
32.2 C (90.0 F)
1935
31.7 C (89.1 F)
1936
32.8 C (91.0 F)
1937
31.7 C (89.1 F)
1938
31.7 C (89.1 F)
1939
31.7 C (89.1 F)
1940
30.0 C (86.0 F)
1941
31.1 C (88.0 F)
1942
30.0 C (86.0 F)
1943
31.7 C (89.1 F)
1944
31.1 C (88.0 F)
1945
35.0 C (95.0 F)
1946
29.4 C (84.9 F)
1947
36.7 C (98.1 F)
1948
31.7 C (89.1 F)
1949
31.1 C (88.0 F)
1950
31.7 C (89.1 F)
1951
31.7 C (89.1 F)
1952
35.6 C (96.1 F)
1953
31.7 C (89.1 F)
1954
33.9 C (93.0 F)
1955
30.6 C (87.1 F)
1956
32.8 C (91.0 F)
1957
32.8 C (91.0 F)
1958
31.1 C (88.0 F)
Coldest night (TNn)
The coldest night of the year at Rock House, 1900 to 1958. The record is -22.2 C (-8.0 F) in 1917, marked on the chart; the median year is -15.6 C (3.9 F).
Coldest night (TNn) at Rock House by year
Year
Coldest night (TNn)
1900
-18.9 C (-2.0 F)
1901
-16.1 C (3.0 F)
1902
-13.3 C (8.1 F)
1903
-15.6 C (3.9 F)
1904
-11.7 C (10.9 F)
1905
-19.4 C (-2.9 F)
1906
-11.7 C (10.9 F)
1907
-12.2 C (10.0 F)
1908
-17.2 C (1.0 F)
1909
-18.3 C (-0.9 F)
1910
-15.0 C (5.0 F)
1911
-12.2 C (10.0 F)
1912
-15.6 C (3.9 F)
1913
-11.1 C (12.0 F)
1914
-15.6 C (3.9 F)
1915
-10.6 C (12.9 F)
1916
-12.2 C (10.0 F)
1917
-22.2 C (-8.0 F)
1918
-20.6 C (-5.1 F)
1919
-16.7 C (1.9 F)
1920
-15.6 C (3.9 F)
1921
-8.3 C (17.1 F)
1922
-10.0 C (14.0 F)
1923
-16.1 C (3.0 F)
1924
-21.1 C (-6.0 F)
1925
-18.3 C (-0.9 F)
1926
-13.9 C (7.0 F)
1927
-15.0 C (5.0 F)
1928
-20.0 C (-4.0 F)
1929
-16.1 C (3.0 F)
1930
-12.8 C (9.0 F)
1931
-10.0 C (14.0 F)
1932
-15.0 C (5.0 F)
1933
-17.8 C (0.0 F)
1934
-18.9 C (-2.0 F)
1935
-16.7 C (1.9 F)
1936
-17.8 C (0.0 F)
1937
-15.6 C (3.9 F)
1938
-14.4 C (6.1 F)
1939
-14.4 C (6.1 F)
1940
-20.0 C (-4.0 F)
1941
-12.2 C (10.0 F)
1942
-13.9 C (7.0 F)
1943
-16.7 C (1.9 F)
1944
-12.8 C (9.0 F)
1945
-12.2 C (10.0 F)
1946
-7.8 C (18.0 F)
1947
-16.7 C (1.9 F)
1948
-17.2 C (1.0 F)
1949
-10.6 C (12.9 F)
1950
-17.8 C (0.0 F)
1951
-15.6 C (3.9 F)
1952
-13.3 C (8.1 F)
1953
-14.4 C (6.1 F)
1954
-13.3 C (8.1 F)
1955
-16.7 C (1.9 F)
1956
-10.0 C (14.0 F)
1957
-18.3 C (-0.9 F)
1958
-21.1 C (-6.0 F)
Wettest day (Rx1day)
The wettest day of the year at Rock House, 1900 to 1958. The record is 333.5 mm (13.1 in) in 1940, marked on the chart; the median year is 101.6 mm (4.0 in).
Wettest day (Rx1day) at Rock House by year
Year
Wettest day (Rx1day)
1900
114.6 mm (4.5 in)
1901
152.4 mm (6.0 in)
1902
134.6 mm (5.3 in)
1903
135.1 mm (5.3 in)
1904
97.8 mm (3.9 in)
1905
96.0 mm (3.8 in)
1906
201.9 mm (7.9 in)
1907
111.8 mm (4.4 in)
1908
83.6 mm (3.3 in)
1909
120.4 mm (4.7 in)
1910
101.6 mm (4.0 in)
1911
117.9 mm (4.6 in)
1912
118.6 mm (4.7 in)
1913
93.2 mm (3.7 in)
1914
223.5 mm (8.8 in)
1915
255.3 mm (10.1 in)
1916
186.4 mm (7.3 in)
1917
116.8 mm (4.6 in)
1918
159.8 mm (6.3 in)
1919
119.4 mm (4.7 in)
1920
99.1 mm (3.9 in)
1921
61.0 mm (2.4 in)
1922
92.5 mm (3.6 in)
1923
73.2 mm (2.9 in)
1924
96.8 mm (3.8 in)
1925
73.7 mm (2.9 in)
1926
90.7 mm (3.6 in)
1927
95.8 mm (3.8 in)
1928
214.6 mm (8.4 in)
1929
158.8 mm (6.3 in)
1930
69.6 mm (2.7 in)
1931
86.4 mm (3.4 in)
1932
174.0 mm (6.9 in)
1933
76.7 mm (3.0 in)
1934
93.0 mm (3.7 in)
1935
91.4 mm (3.6 in)
1936
174.8 mm (6.9 in)
1937
127.0 mm (5.0 in)
1938
101.6 mm (4.0 in)
1939
62.2 mm (2.4 in)
1940
333.5 mm (13.1 in)
1941
104.9 mm (4.1 in)
1942
105.4 mm (4.1 in)
1943
101.6 mm (4.0 in)
1944
89.2 mm (3.5 in)
1945
67.1 mm (2.6 in)
1946
114.3 mm (4.5 in)
1947
124.0 mm (4.9 in)
1948
256.5 mm (10.1 in)
1949
197.4 mm (7.8 in)
1950
110.5 mm (4.4 in)
1951
74.9 mm (2.9 in)
1952
131.6 mm (5.2 in)
1953
74.2 mm (2.9 in)
1954
93.0 mm (3.7 in)
1955
80.3 mm (3.2 in)
1956
101.6 mm (4.0 in)
1957
101.6 mm (4.0 in)
1958
81.5 mm (3.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rock House, 1900 to 1958. The record is 471.3 mm (18.6 in) in 1916, marked on the chart; the median year is 185.5 mm (7.3 in).
Wettest five days (Rx5day) at Rock House by year
Year
Wettest five days (Rx5day)
1900
227.3 mm (8.9 in)
1901
214.3 mm (8.4 in)
1902
158.0 mm (6.2 in)
1903
203.2 mm (8.0 in)
1904
116.8 mm (4.6 in)
1905
233.9 mm (9.2 in)
1906
268.0 mm (10.6 in)
1907
122.4 mm (4.8 in)
1908
138.4 mm (5.4 in)
1909
192.1 mm (7.6 in)
1910
144.0 mm (5.7 in)
1911
163.3 mm (6.4 in)
1912
141.9 mm (5.6 in)
1913
205.0 mm (8.1 in)
1914
290.1 mm (11.4 in)
1915
335.8 mm (13.2 in)
1916
471.3 mm (18.6 in)
1917
196.1 mm (7.7 in)
1918
327.2 mm (12.9 in)
1919
196.4 mm (7.7 in)
1920
201.2 mm (7.9 in)
1921
152.6 mm (6.0 in)
1922
142.8 mm (5.6 in)
1923
129.2 mm (5.1 in)
1924
233.2 mm (9.2 in)
1925
118.4 mm (4.7 in)
1926
180.4 mm (7.1 in)
1927
132.4 mm (5.2 in)
1928
311.8 mm (12.3 in)
1929
196.7 mm (7.7 in)
1930
141.2 mm (5.6 in)
1931
159.0 mm (6.3 in)
1932
236.2 mm (9.3 in)
1933
114.1 mm (4.5 in)
1934
208.3 mm (8.2 in)
1935
185.0 mm (7.3 in)
1936
185.5 mm (7.3 in)
1937
193.8 mm (7.6 in)
1938
267.8 mm (10.5 in)
1939
147.3 mm (5.8 in)
1940
346.1 mm (13.6 in)
1941
236.7 mm (9.3 in)
1942
275.1 mm (10.8 in)
1943
204.5 mm (8.1 in)
1944
119.7 mm (4.7 in)
1945
121.7 mm (4.8 in)
1946
153.9 mm (6.1 in)
1947
156.1 mm (6.1 in)
1948
289.5 mm (11.4 in)
1949
259.7 mm (10.2 in)
1950
192.1 mm (7.6 in)
1951
142.3 mm (5.6 in)
1952
166.0 mm (6.5 in)
1953
150.4 mm (5.9 in)
1954
172.2 mm (6.8 in)
1955
156.7 mm (6.2 in)
1956
161.6 mm (6.4 in)
1957
194.1 mm (7.6 in)
1958
163.8 mm (6.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rock House, 1900 to 1958. The record is 30 days in 1952, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Rock House by year
Year
Longest dry spell (CDD)
1900
15 days
1901
22 days
1902
14 days
1903
21 days
1904
26 days
1905
13 days
1906
23 days
1907
19 days
1908
19 days
1909
14 days
1910
19 days
1911
11 days
1912
13 days
1913
20 days
1914
20 days
1915
21 days
1916
13 days
1917
14 days
1918
16 days
1919
12 days
1920
26 days
1921
23 days
1922
14 days
1923
20 days
1924
24 days
1925
20 days
1926
13 days
1927
20 days
1928
14 days
1929
15 days
1930
11 days
1931
21 days
1932
14 days
1933
15 days
1934
15 days
1935
25 days
1936
21 days
1937
9 days
1938
20 days
1939
13 days
1940
24 days
1941
23 days
1942
19 days
1943
25 days
1944
12 days
1945
11 days
1946
15 days
1947
14 days
1948
17 days
1949
22 days
1950
21 days
1951
23 days
1952
30 days
1953
17 days
1954
15 days
1955
17 days
1956
18 days
1957
18 days
1958
10 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
53 years with a frost
Across 53 years with a frost, the median last spring frost at Rock House falls on 15 April and the median first autumn frost on 26 October, which leaves a median of 193 days between them.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
Frost dates and growing season at Rock House
Measure
Median, all years
Earliest period
Recent period (1925 to 1957)
Recent against earliest
Fitted trend
Last spring frost
15 April
n/a
15 April
n/a
-0.9 days per decade
First autumn frost
26 October
n/a
28 October
n/a
+1.2 days per decade
Growing days
193 days
n/a
198 days
n/a
+2.1 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
56 years, 1900 to 1957
A day with at least 107.9 mm (4.2 in) of rain is expected about once in 2 years. A day with at least 359.6 mm (14.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Rock House: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
107.9 mm (4.2 in)
5 years
150.1 mm (5.9 in)
10 years
186.0 mm (7.3 in)
25 years
243.2 mm (9.6 in)
50 years
296.1 mm (11.7 in)
100 years
359.6 mm (14.2 in)
Longer than the 56 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, 56 years of values from 1900 to 1957.
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: 333.5 mm (13.1 in) in 1940; 256.5 mm (10.1 in) in 1948; 255.3 mm (10.1 in) in 1915.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Rock House standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rock House 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.