Record envelope, standing records and threshold days for Rugby (USC00407979), Tennessee, United States, with 60 years of record.
Key Facts for Rugby
Rugby (USC00407979) is a weather station in Tennessee, United States at 36.37 latitude and -84.70 longitude, 436 m (1,430 ft) above sea level.
The station reports from 1890 to 1949, 60 years of record.
1,464 records set at Rugby still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Rugby set a daily record low minimum temperature of 1.1 C (34.0 F) on 27 May 1949.
About the Station
Location: Tennessee, United States, 36.37 latitude, -84.70 longitude.
Elevation: 436 m (1,430 ft).
Period of record: 1890 to 1949, 60 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 Rugby. 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 Rugby, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.9 C (75.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-28.3 C (-18.9 F)
n/a
n/a
Mar
31.7 C (89.1 F)
-20.0 C (-4.0 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-9.4 C (15.1 F)
n/a
n/a
May
36.7 C (98.1 F)
-3.3 C (26.1 F)
n/a
n/a
Jun
40.0 C (104.0 F)
0.0 C (32.0 F)
n/a
n/a
Jul
39.4 C (102.9 F)
5.0 C (41.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
2.2 C (36.0 F)
n/a
n/a
Sep
38.3 C (100.9 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
28.3 C (82.9 F)
-16.7 C (1.9 F)
n/a
n/a
Dec
23.9 C (75.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rugby still stand. 1925 holds the most, with 48.
Standing records at Rugby by the year they were set
Year set
Standing records
1891
13
1896
2
1897
25
1898
32
1899
46
1900
32
1901
43
1902
32
1903
37
1904
22
1905
25
1906
23
1907
45
1908
25
1909
28
1910
31
1911
35
1912
26
1913
31
1914
39
1915
33
1916
26
1917
36
1918
27
1919
31
1920
23
1921
18
1922
13
1923
23
1924
23
1925
48
1926
24
1927
33
1928
25
1929
21
1930
33
1931
26
1932
22
1933
20
1934
17
1935
26
1936
39
1937
27
1938
20
1939
12
1940
38
1941
29
1942
20
1943
31
1944
25
1945
17
1946
15
1947
18
1948
21
1949
12
All-Time Record Progression
6 new records
6 all-time records were set at Rugby between 29 June 1928 and 26 January 1940. Each dot is a new record.
When Rugby set new all-time records
Date
Kind
Detail
1928-06-29
Record daily precipitation
Record daily precipitation 171.5 mm (6.8 in)
1930-06-24
Record high minimum temperature
Record high minimum temperature 26.1 C (79.0 F)
1930-07-12
Record high maximum temperature
Record high maximum temperature 38.9 C (102.0 F)
1930-07-28
Record high maximum temperature
Record high maximum temperature 39.4 C (102.9 F)
1936-06-29
Record high maximum temperature
Record high maximum temperature 40.0 C (104.0 F)
1940-01-26
Record low minimum temperature
Record low minimum temperature -28.9 C (-20.0 F)
Wettest Day of Each Month
Jun: 171.5 mm (6.8 in)
The wettest day on record for each calendar month at Rugby. The most was 171.5 mm (6.8 in) on 29 June 1928.
Record daily precipitation for each month at Rugby
Month
Record daily precipitation (mm)
Date
Jan
92.2 mm (3.6 in)
5 January 1949
Feb
111.8 mm (4.4 in)
3 February 1939
Mar
139.7 mm (5.5 in)
28 March 1902
Apr
94.0 mm (3.7 in)
4 April 1911
May
63.5 mm (2.5 in)
5 May 1895
Jun
171.5 mm (6.8 in)
29 June 1928
Jul
114.3 mm (4.5 in)
17 July 1906
Aug
92.7 mm (3.6 in)
1 August 1916
Sep
125.7 mm (4.9 in)
29 September 1944
Oct
96.5 mm (3.8 in)
16 October 1932
Nov
101.6 mm (4.0 in)
16 November 1927
Dec
89.9 mm (3.5 in)
6 December 1936
Period of Record Coverage
1890 to 1949
Complete yearUnder 90 percent of days
56 years of record at Rugby, 1890 to 1949. 11 years have data for under 90 percent of days and are left out of rankings: 1890, 1891, 1896, 1911, 1912, 1915, 1933, 1935 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 35 complete years at Rugby, 1898 to 1948. Blue stripes are years cooler than the station's own mean of 13.1 C (55.5 F); red stripes are warmer. The coolest year was 1940, at 11.7 C (53.1 F), and the warmest was 1931, at 14.0 C (57.2 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Rugby as warming stripes, 1898 to 1948
Year
Annual mean temperature
Difference from the station mean
1898
12.9 C
-0.17 C
1899
12.7 C
-0.40 C
1900
13.4 C
+0.34 C
1903
12.3 C
-0.82 C
1904
12.1 C
-0.98 C
1905
12.7 C
-0.35 C
1906
13.1 C
-0.01 C
1907
12.8 C
-0.28 C
1909
13.0 C
-0.07 C
1910
12.3 C
-0.78 C
1913
13.9 C
+0.79 C
1914
13.1 C
+0.01 C
1916
13.3 C
+0.18 C
1918
13.3 C
+0.22 C
1919
13.8 C
+0.71 C
1920
12.8 C
-0.29 C
1922
13.7 C
+0.58 C
1923
13.2 C
+0.15 C
1924
12.2 C
-0.91 C
1927
13.6 C
+0.54 C
1928
12.2 C
-0.92 C
1929
12.6 C
-0.48 C
1931
14.0 C
+0.91 C
1932
13.3 C
+0.21 C
1934
12.9 C
-0.20 C
1937
13.0 C
-0.11 C
1938
13.7 C
+0.64 C
1939
13.3 C
+0.23 C
1940
11.7 C
-1.36 C
1941
13.6 C
+0.54 C
1942
13.4 C
+0.33 C
1943
13.1 C
+0.02 C
1945
13.4 C
+0.36 C
1946
13.9 C
+0.80 C
1948
13.7 C
+0.67 C
The fitted trend in annual mean temperature here over 1898 to 1948 is 0.12 C (0.00 to 0.25) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.22 F (-0.01 to 0.45) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Rugby
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.12 C (0.00 to 0.25) per decade
0.22 F (-0.01 to 0.45) per decade
1898 to 1948
35
Not clearly different from zero
Mean daily maximum
0.15 C (-0.02 to 0.32) per decade
0.27 F (-0.03 to 0.58) per decade
1898 to 1948
35
Not clearly different from zero
Mean daily minimum
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.1 to 0.5) per decade
1898 to 1948
35
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
1890 to 1949
Yearly extremes at Rugby: 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)
1936
35.9 C (96.5 F)
56
Coldest night (TNn)
-28.9 C (-20.0 F)
1940
-20.0 C (-4.0 F)
55
Wettest day (Rx1day)
171.5 mm (6.8 in)
1928
72.6 mm (2.9 in)
59
Wettest five days (Rx5day)
186.3 mm (7.3 in)
1901
118.1 mm (4.6 in)
59
Longest dry spell (CDD)
44 days
1935
19 days
59
Hottest day (TXx)
The hottest day of the year at Rugby, 1890 to 1949. The record is 40.0 C (104.0 F) in 1936, marked on the chart; the median year is 35.9 C (96.5 F).
Hottest day (TXx) at Rugby by year
Year
Hottest day (TXx)
1890
28.9 C (84.0 F)
1891
17.2 C (63.0 F)
1893
n/a
1894
n/a
1895
n/a
1896
35.6 C (96.1 F)
1897
34.4 C (93.9 F)
1898
35.0 C (95.0 F)
1899
35.6 C (96.1 F)
1900
35.6 C (96.1 F)
1901
37.2 C (99.0 F)
1902
36.1 C (97.0 F)
1903
35.6 C (96.1 F)
1904
37.2 C (99.0 F)
1905
36.1 C (97.0 F)
1906
34.4 C (93.9 F)
1907
36.7 C (98.1 F)
1908
34.4 C (93.9 F)
1909
34.4 C (93.9 F)
1910
33.3 C (91.9 F)
1911
37.2 C (99.0 F)
1912
35.6 C (96.1 F)
1913
37.8 C (100.0 F)
1914
37.2 C (99.0 F)
1915
35.6 C (96.1 F)
1916
34.4 C (93.9 F)
1917
33.3 C (91.9 F)
1918
36.1 C (97.0 F)
1919
36.7 C (98.1 F)
1920
32.2 C (90.0 F)
1921
35.0 C (95.0 F)
1922
32.8 C (91.0 F)
1923
33.9 C (93.0 F)
1924
36.7 C (98.1 F)
1925
38.3 C (100.9 F)
1926
37.8 C (100.0 F)
1927
36.7 C (98.1 F)
1928
33.3 C (91.9 F)
1929
33.9 C (93.0 F)
1930
39.4 C (102.9 F)
1931
37.2 C (99.0 F)
1932
36.7 C (98.1 F)
1933
36.7 C (98.1 F)
1934
36.7 C (98.1 F)
1935
36.1 C (97.0 F)
1936
40.0 C (104.0 F)
1937
34.4 C (93.9 F)
1938
35.0 C (95.0 F)
1939
36.1 C (97.0 F)
1940
34.4 C (93.9 F)
1941
36.7 C (98.1 F)
1942
37.2 C (99.0 F)
1943
39.4 C (102.9 F)
1944
36.7 C (98.1 F)
1945
34.4 C (93.9 F)
1946
36.1 C (97.0 F)
1947
36.1 C (97.0 F)
1948
35.6 C (96.1 F)
1949
31.7 C (89.1 F)
Coldest night (TNn)
The coldest night of the year at Rugby, 1890 to 1949. The record is -28.9 C (-20.0 F) in 1940, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Rugby by year
Year
Coldest night (TNn)
1890
3.3 C (37.9 F)
1891
n/a
1893
n/a
1894
n/a
1895
n/a
1896
-14.4 C (6.1 F)
1897
-27.2 C (-17.0 F)
1898
-21.1 C (-6.0 F)
1899
-28.3 C (-18.9 F)
1900
-22.8 C (-9.0 F)
1901
-27.8 C (-18.0 F)
1902
-17.2 C (1.0 F)
1903
-23.9 C (-11.0 F)
1904
-16.1 C (3.0 F)
1905
-27.2 C (-17.0 F)
1906
-20.0 C (-4.0 F)
1907
-15.6 C (3.9 F)
1908
-16.7 C (1.9 F)
1909
-20.6 C (-5.1 F)
1910
-17.2 C (1.0 F)
1911
-11.1 C (12.0 F)
1912
-22.2 C (-8.0 F)
1913
-14.4 C (6.1 F)
1914
-25.0 C (-13.0 F)
1915
-11.1 C (12.0 F)
1916
-24.4 C (-11.9 F)
1917
-22.2 C (-8.0 F)
1918
-23.3 C (-9.9 F)
1919
-17.8 C (0.0 F)
1920
-18.9 C (-2.0 F)
1921
-8.9 C (16.0 F)
1922
-15.0 C (5.0 F)
1923
-16.7 C (1.9 F)
1924
-25.0 C (-13.0 F)
1925
-20.6 C (-5.1 F)
1926
-16.1 C (3.0 F)
1927
-18.3 C (-0.9 F)
1928
-23.3 C (-9.9 F)
1929
-20.6 C (-5.1 F)
1930
-17.2 C (1.0 F)
1931
-14.4 C (6.1 F)
1932
-19.4 C (-2.9 F)
1933
-24.4 C (-11.9 F)
1934
-20.0 C (-4.0 F)
1935
-23.9 C (-11.0 F)
1936
-24.4 C (-11.9 F)
1937
-20.6 C (-5.1 F)
1938
-20.0 C (-4.0 F)
1939
-15.0 C (5.0 F)
1940
-28.9 C (-20.0 F)
1941
-13.3 C (8.1 F)
1942
-21.7 C (-7.1 F)
1943
-20.0 C (-4.0 F)
1944
-16.7 C (1.9 F)
1945
-17.8 C (0.0 F)
1946
-17.2 C (1.0 F)
1947
-18.3 C (-0.9 F)
1948
-23.3 C (-9.9 F)
1949
-11.7 C (10.9 F)
Wettest day (Rx1day)
The wettest day of the year at Rugby, 1890 to 1949. The record is 171.5 mm (6.8 in) in 1928, marked on the chart; the median year is 72.6 mm (2.9 in).
Wettest day (Rx1day) at Rugby by year
Year
Wettest day (Rx1day)
1890
42.4 mm (1.7 in)
1891
48.3 mm (1.9 in)
1893
65.3 mm (2.6 in)
1894
75.7 mm (3.0 in)
1895
63.5 mm (2.5 in)
1896
67.3 mm (2.6 in)
1897
84.6 mm (3.3 in)
1898
58.4 mm (2.3 in)
1899
61.0 mm (2.4 in)
1900
75.4 mm (3.0 in)
1901
90.2 mm (3.6 in)
1902
139.7 mm (5.5 in)
1903
54.6 mm (2.1 in)
1904
45.7 mm (1.8 in)
1905
68.3 mm (2.7 in)
1906
114.3 mm (4.5 in)
1907
75.9 mm (3.0 in)
1908
50.8 mm (2.0 in)
1909
54.6 mm (2.1 in)
1910
68.6 mm (2.7 in)
1911
94.0 mm (3.7 in)
1912
62.7 mm (2.5 in)
1913
54.6 mm (2.1 in)
1914
86.4 mm (3.4 in)
1915
90.2 mm (3.6 in)
1916
92.7 mm (3.6 in)
1917
57.2 mm (2.3 in)
1918
66.0 mm (2.6 in)
1919
63.5 mm (2.5 in)
1920
73.7 mm (2.9 in)
1921
77.5 mm (3.1 in)
1922
76.2 mm (3.0 in)
1923
61.0 mm (2.4 in)
1924
78.7 mm (3.1 in)
1925
57.2 mm (2.3 in)
1926
85.1 mm (3.4 in)
1927
101.6 mm (4.0 in)
1928
171.5 mm (6.8 in)
1929
101.6 mm (4.0 in)
1930
45.7 mm (1.8 in)
1931
47.0 mm (1.9 in)
1932
96.5 mm (3.8 in)
1933
50.8 mm (2.0 in)
1934
74.9 mm (2.9 in)
1935
55.9 mm (2.2 in)
1936
89.9 mm (3.5 in)
1937
83.8 mm (3.3 in)
1938
72.6 mm (2.9 in)
1939
111.8 mm (4.4 in)
1940
52.1 mm (2.1 in)
1941
104.1 mm (4.1 in)
1942
59.7 mm (2.4 in)
1943
45.7 mm (1.8 in)
1944
125.7 mm (4.9 in)
1945
63.5 mm (2.5 in)
1946
91.4 mm (3.6 in)
1947
35.8 mm (1.4 in)
1948
97.3 mm (3.8 in)
1949
92.2 mm (3.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rugby, 1890 to 1949. The record is 186.3 mm (7.3 in) in 1901, marked on the chart; the median year is 118.1 mm (4.6 in).
Wettest five days (Rx5day) at Rugby by year
Year
Wettest five days (Rx5day)
1890
56.4 mm (2.2 in)
1891
51.8 mm (2.0 in)
1893
103.4 mm (4.1 in)
1894
141.5 mm (5.6 in)
1895
144.6 mm (5.7 in)
1896
109.5 mm (4.3 in)
1897
118.1 mm (4.6 in)
1898
101.3 mm (4.0 in)
1899
134.4 mm (5.3 in)
1900
143.6 mm (5.7 in)
1901
186.3 mm (7.3 in)
1902
149.9 mm (5.9 in)
1903
102.7 mm (4.0 in)
1904
93.0 mm (3.7 in)
1905
110.8 mm (4.4 in)
1906
179.8 mm (7.1 in)
1907
102.0 mm (4.0 in)
1908
82.7 mm (3.3 in)
1909
87.9 mm (3.5 in)
1910
111.8 mm (4.4 in)
1911
145.3 mm (5.7 in)
1912
108.5 mm (4.3 in)
1913
102.8 mm (4.0 in)
1914
138.8 mm (5.5 in)
1915
126.7 mm (5.0 in)
1916
156.4 mm (6.2 in)
1917
134.7 mm (5.3 in)
1918
144.8 mm (5.7 in)
1919
172.8 mm (6.8 in)
1920
117.9 mm (4.6 in)
1921
91.5 mm (3.6 in)
1922
155.0 mm (6.1 in)
1923
88.8 mm (3.5 in)
1924
103.8 mm (4.1 in)
1925
120.7 mm (4.8 in)
1926
96.5 mm (3.8 in)
1927
177.8 mm (7.0 in)
1928
179.1 mm (7.1 in)
1929
182.9 mm (7.2 in)
1930
64.8 mm (2.6 in)
1931
77.7 mm (3.1 in)
1932
115.0 mm (4.5 in)
1933
88.6 mm (3.5 in)
1934
81.3 mm (3.2 in)
1935
105.2 mm (4.1 in)
1936
99.0 mm (3.9 in)
1937
121.7 mm (4.8 in)
1938
82.3 mm (3.2 in)
1939
156.2 mm (6.1 in)
1940
96.8 mm (3.8 in)
1941
173.4 mm (6.8 in)
1942
132.7 mm (5.2 in)
1943
129.9 mm (5.1 in)
1944
146.3 mm (5.8 in)
1945
133.0 mm (5.2 in)
1946
148.6 mm (5.9 in)
1947
84.7 mm (3.3 in)
1948
162.5 mm (6.4 in)
1949
121.9 mm (4.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rugby, 1890 to 1949. The record is 44 days in 1935, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Rugby by year
Year
Longest dry spell (CDD)
1890
5 days
1891
30 days
1893
16 days
1894
26 days
1895
20 days
1896
28 days
1897
22 days
1898
21 days
1899
37 days
1900
17 days
1901
22 days
1902
17 days
1903
18 days
1904
14 days
1905
15 days
1906
20 days
1907
19 days
1908
22 days
1909
21 days
1910
17 days
1911
13 days
1912
19 days
1913
14 days
1914
20 days
1915
13 days
1916
18 days
1917
18 days
1918
17 days
1919
20 days
1920
26 days
1921
18 days
1922
15 days
1923
20 days
1924
27 days
1925
17 days
1926
19 days
1927
26 days
1928
24 days
1929
23 days
1930
24 days
1931
20 days
1932
13 days
1933
14 days
1934
12 days
1935
44 days
1936
20 days
1937
16 days
1938
20 days
1939
18 days
1940
14 days
1941
21 days
1942
18 days
1943
22 days
1944
19 days
1945
19 days
1946
14 days
1947
20 days
1948
26 days
1949
12 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
35 years with a frost
Across 35 years with a frost, the median last spring frost at Rugby falls on 3 May and the median first autumn frost on 10 October, which leaves a median of 158 days between them.
Fitted over all years, the growing season changes by -1.4 days per decade at this station.
Frost dates and growing season at Rugby
Measure
Median, all years
Earliest period
Recent period (1905 to 1948)
Recent against earliest
Fitted trend
Last spring frost
3 May
n/a
3 May
n/a
0.0 days per decade
First autumn frost
10 October
n/a
10 October
n/a
-1.4 days per decade
Growing days
158 days
n/a
158 days
n/a
-1.4 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
48 years, 1893 to 1948
A day with at least 72.0 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 153.5 mm (6.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Rugby: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
72.0 mm (2.8 in)
5 years
93.2 mm (3.7 in)
10 years
107.5 mm (4.2 in)
25 years
125.8 mm (5.0 in)
50 years
139.6 mm (5.5 in)
Longer than the 48 years of record
100 years
153.5 mm (6.0 in)
Longer than the 48 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, 48 years of values from 1893 to 1948.
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: 171.5 mm (6.8 in) in 1928; 125.7 mm (4.9 in) in 1944; 114.3 mm (4.5 in) in 1906.
Download the Data
Data for Rugby standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rugby 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.