Record envelope, standing records and threshold days for Rosedale (USC00227582), Mississippi, United States, with 89 years of record.
Key Facts for Rosedale
Rosedale (USC00227582) is a weather station in Mississippi, United States at 33.85 latitude and -91.02 longitude, 46 m (151 ft) above sea level.
The station reports from 1894 to 1982, 89 years of record.
1,464 records set at Rosedale still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Rosedale set a daily record precipitation of 55.4 mm (2.2 in) on 29 June 1982.
About the Station
Location: Mississippi, United States, 33.85 latitude, -91.02 longitude.
Elevation: 46 m (151 ft).
Period of record: 1894 to 1982, 89 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 Rosedale. 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 Rosedale, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
28.3 C (82.9 F)
-20.0 C (-4.0 F)
n/a
n/a
Feb
30.6 C (87.1 F)
-20.6 C (-5.1 F)
n/a
n/a
Mar
33.3 C (91.9 F)
-10.0 C (14.0 F)
n/a
n/a
Apr
38.9 C (102.0 F)
-2.2 C (28.0 F)
n/a
n/a
May
38.3 C (100.9 F)
4.4 C (39.9 F)
n/a
n/a
Jun
40.0 C (104.0 F)
9.4 C (48.9 F)
n/a
n/a
Jul
43.3 C (109.9 F)
11.1 C (52.0 F)
n/a
n/a
Aug
41.7 C (107.1 F)
11.1 C (52.0 F)
n/a
n/a
Sep
41.1 C (106.0 F)
2.8 C (37.0 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-4.4 C (24.1 F)
n/a
n/a
Nov
32.8 C (91.0 F)
-10.0 C (14.0 F)
n/a
n/a
Dec
27.8 C (82.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rosedale still stand. 1895 holds the most, with 64.
Standing records at Rosedale by the year they were set
Year set
Standing records
1894
16
1895
64
1896
26
1897
23
1898
24
1899
22
1907
15
1908
16
1909
27
1910
20
1911
35
1912
17
1913
24
1914
23
1915
31
1916
16
1917
41
1918
37
1919
12
1920
25
1921
19
1922
16
1923
22
1924
40
1925
40
1926
19
1927
40
1928
25
1929
21
1930
47
1931
21
1932
25
1933
27
1934
15
1935
9
1936
27
1948
10
1949
17
1950
24
1951
29
1952
16
1953
11
1954
17
1955
21
1956
9
1957
8
1958
18
1959
19
1960
17
1961
24
1962
21
1963
25
1964
28
1965
18
1966
11
1967
23
1968
11
1969
9
1970
20
1971
9
1972
12
1973
5
1974
20
1975
13
1976
23
1977
11
1978
4
1979
9
1980
14
1981
7
1982
4
All-Time Record Progression
1 new records
1 all-time records were set at Rosedale between 25 April 1973 and 25 April 1973. Each dot is a new record.
When Rosedale set new all-time records
Date
Kind
Detail
1973-04-25
Record daily precipitation
Record daily precipitation 169.4 mm (6.7 in)
Wettest Day of Each Month
Apr: 169.4 mm (6.7 in)
The wettest day on record for each calendar month at Rosedale. The most was 169.4 mm (6.7 in) on 25 April 1973.
Record daily precipitation for each month at Rosedale
Month
Record daily precipitation (mm)
Date
Jan
114.8 mm (4.5 in)
12 January 1932
Feb
139.7 mm (5.5 in)
21 February 1961
Mar
120.7 mm (4.8 in)
12 March 1927
Apr
169.4 mm (6.7 in)
25 April 1973
May
125.0 mm (4.9 in)
15 May 1923
Jun
120.7 mm (4.8 in)
2 June 1947
Jul
118.1 mm (4.6 in)
10 July 1940
Aug
111.8 mm (4.4 in)
10 August 1948
Sep
115.1 mm (4.5 in)
16 September 1968
Oct
157.5 mm (6.2 in)
31 October 1929
Nov
140.5 mm (5.5 in)
21 November 1934
Dec
88.9 mm (3.5 in)
11 December 1963
Period of Record Coverage
1894 to 1982
Complete yearUnder 90 percent of days
71 years of record at Rosedale, 1894 to 1982. 11 years have data for under 90 percent of days and are left out of rankings: 1894, 1895, 1898, 1899, 1907, 1924, 1933, 1936 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 58 complete years at Rosedale, 1896 to 1981. Blue stripes are years cooler than the station's own mean of 17.2 C (63.0 F); red stripes are warmer. The coolest year was 1912, at 15.7 C (60.3 F), and the warmest was 1927, at 19.1 C (66.4 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Rosedale as warming stripes, 1896 to 1981
Year
Annual mean temperature
Difference from the station mean
1896
17.5 C
+0.26 C
1897
17.1 C
-0.07 C
1908
18.4 C
+1.18 C
1909
17.7 C
+0.46 C
1910
16.8 C
-0.39 C
1911
17.8 C
+0.58 C
1912
15.7 C
-1.47 C
1913
17.1 C
-0.09 C
1914
16.8 C
-0.40 C
1916
17.3 C
+0.11 C
1917
16.0 C
-1.17 C
1918
17.1 C
-0.12 C
1919
18.2 C
+0.99 C
1920
17.2 C
-0.02 C
1921
18.9 C
+1.72 C
1922
17.9 C
+0.66 C
1923
17.2 C
+0.01 C
1925
18.8 C
+1.59 C
1926
18.1 C
+0.86 C
1927
19.1 C
+1.92 C
1928
17.8 C
+0.64 C
1929
17.7 C
+0.53 C
1930
18.2 C
+1.00 C
1931
18.6 C
+1.40 C
1932
18.2 C
+0.99 C
1935
18.3 C
+1.10 C
1949
18.1 C
+0.91 C
1950
17.2 C
+0.02 C
1951
17.7 C
+0.45 C
1953
17.9 C
+0.69 C
1954
18.6 C
+1.42 C
1955
17.6 C
+0.40 C
1956
17.9 C
+0.73 C
1957
17.5 C
+0.28 C
1958
16.0 C
-1.16 C
1959
16.6 C
-0.56 C
1960
16.0 C
-1.23 C
1961
16.1 C
-1.12 C
1962
16.9 C
-0.27 C
1963
16.3 C
-0.87 C
1964
17.0 C
-0.19 C
1965
17.2 C
+0.04 C
1966
16.3 C
-0.91 C
1967
16.5 C
-0.67 C
1968
16.0 C
-1.18 C
1969
16.4 C
-0.85 C
1970
16.5 C
-0.73 C
1971
16.9 C
-0.29 C
1972
16.7 C
-0.47 C
1973
17.1 C
-0.12 C
1974
16.7 C
-0.49 C
1975
16.5 C
-0.74 C
1976
15.8 C
-1.38 C
1977
17.1 C
-0.12 C
1978
16.0 C
-1.16 C
1979
15.7 C
-1.46 C
1980
16.7 C
-0.55 C
1981
16.7 C
-0.55 C
The annual mean temperature here has fallen by 0.2 C (0.1 to 0.2) per decade over 1896 to 1981. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Rosedale
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.2 to -0.1) per decade
-0.3 F (-0.4 to -0.1) per decade
1896 to 1981
58
Fall
Mean daily maximum
-0.3 C (-0.4 to -0.2) per decade
-0.5 F (-0.7 to -0.3) per decade
1896 to 1981
58
Fall
Mean daily minimum
-0.06 C (-0.14 to 0.02) per decade
-0.11 F (-0.25 to 0.03) per decade
1896 to 1981
58
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 1982
Yearly extremes at Rosedale: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.3 C (109.9 F)
1930
37.2 C (99.0 F)
71
Coldest night (TNn)
-20.6 C (-5.1 F)
1899
-10.6 C (12.9 F)
71
Wettest day (Rx1day)
169.4 mm (6.7 in)
1973
82.6 mm (3.3 in)
79
Wettest five days (Rx5day)
254.5 mm (10.0 in)
1958
141.0 mm (5.6 in)
79
Longest dry spell (CDD)
47 days
1897
24 days
79
Hottest day (TXx)
The hottest day of the year at Rosedale, 1894 to 1982. The record is 43.3 C (109.9 F) in 1930, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Rosedale by year
Year
Hottest day (TXx)
1894
36.7 C (98.1 F)
1895
38.9 C (102.0 F)
1896
38.3 C (100.9 F)
1897
37.2 C (99.0 F)
1898
36.7 C (98.1 F)
1899
37.2 C (99.0 F)
1907
35.6 C (96.1 F)
1908
36.1 C (97.0 F)
1909
39.4 C (102.9 F)
1910
36.1 C (97.0 F)
1911
38.9 C (102.0 F)
1912
38.9 C (102.0 F)
1913
37.8 C (100.0 F)
1914
38.3 C (100.9 F)
1915
38.3 C (100.9 F)
1916
37.2 C (99.0 F)
1917
37.2 C (99.0 F)
1918
38.9 C (102.0 F)
1919
38.9 C (102.0 F)
1920
36.7 C (98.1 F)
1921
37.8 C (100.0 F)
1922
36.7 C (98.1 F)
1923
36.7 C (98.1 F)
1924
40.6 C (105.1 F)
1925
41.1 C (106.0 F)
1926
39.4 C (102.9 F)
1927
40.0 C (104.0 F)
1928
37.8 C (100.0 F)
1929
38.9 C (102.0 F)
1930
43.3 C (109.9 F)
1931
39.4 C (102.9 F)
1932
38.3 C (100.9 F)
1933
38.9 C (102.0 F)
1934
40.0 C (104.0 F)
1935
38.9 C (102.0 F)
1936
40.6 C (105.1 F)
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
36.1 C (97.0 F)
1949
35.6 C (96.1 F)
1950
35.6 C (96.1 F)
1951
40.0 C (104.0 F)
1952
38.9 C (102.0 F)
1953
37.8 C (100.0 F)
1954
39.4 C (102.9 F)
1955
36.1 C (97.0 F)
1956
38.3 C (100.9 F)
1957
35.6 C (96.1 F)
1958
35.0 C (95.0 F)
1959
36.1 C (97.0 F)
1960
37.2 C (99.0 F)
1961
35.0 C (95.0 F)
1962
37.8 C (100.0 F)
1963
37.2 C (99.0 F)
1964
39.4 C (102.9 F)
1965
36.7 C (98.1 F)
1966
36.7 C (98.1 F)
1967
35.6 C (96.1 F)
1968
35.6 C (96.1 F)
1969
37.8 C (100.0 F)
1970
38.9 C (102.0 F)
1971
37.2 C (99.0 F)
1972
37.2 C (99.0 F)
1973
35.6 C (96.1 F)
1974
36.7 C (98.1 F)
1975
35.0 C (95.0 F)
1976
36.1 C (97.0 F)
1977
38.3 C (100.9 F)
1978
36.7 C (98.1 F)
1979
35.6 C (96.1 F)
1980
39.4 C (102.9 F)
1981
37.2 C (99.0 F)
1982
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Rosedale, 1894 to 1982. The record is -20.6 C (-5.1 F) in 1899, marked on the chart; the median year is -10.6 C (12.9 F).
Coldest night (TNn) at Rosedale by year
Year
Coldest night (TNn)
1894
-13.3 C (8.1 F)
1895
-13.9 C (7.0 F)
1896
-8.9 C (16.0 F)
1897
-9.4 C (15.1 F)
1898
-10.6 C (12.9 F)
1899
-20.6 C (-5.1 F)
1907
-6.7 C (19.9 F)
1908
-7.2 C (19.0 F)
1909
-11.1 C (12.0 F)
1910
-12.8 C (9.0 F)
1911
-15.6 C (3.9 F)
1912
-17.8 C (0.0 F)
1913
-7.2 C (19.0 F)
1914
-11.1 C (12.0 F)
1915
-7.8 C (18.0 F)
1916
-11.7 C (10.9 F)
1917
-13.9 C (7.0 F)
1918
-20.0 C (-4.0 F)
1919
-11.1 C (12.0 F)
1920
-6.7 C (19.9 F)
1921
-5.0 C (23.0 F)
1922
-5.6 C (21.9 F)
1923
-11.1 C (12.0 F)
1924
-12.8 C (9.0 F)
1925
-12.2 C (10.0 F)
1926
-8.9 C (16.0 F)
1927
-11.1 C (12.0 F)
1928
-12.8 C (9.0 F)
1929
-16.1 C (3.0 F)
1930
-17.8 C (0.0 F)
1931
-8.9 C (16.0 F)
1932
-10.6 C (12.9 F)
1933
-13.9 C (7.0 F)
1934
-10.0 C (14.0 F)
1935
-10.0 C (14.0 F)
1936
-16.7 C (1.9 F)
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
-4.4 C (24.1 F)
1949
-15.0 C (5.0 F)
1950
-10.6 C (12.9 F)
1951
-17.2 C (1.0 F)
1952
-6.1 C (21.0 F)
1953
-9.4 C (15.1 F)
1954
-6.7 C (19.9 F)
1955
-9.4 C (15.1 F)
1956
-7.2 C (19.0 F)
1957
-10.0 C (14.0 F)
1958
-13.3 C (8.1 F)
1959
-10.6 C (12.9 F)
1960
-9.4 C (15.1 F)
1961
-9.4 C (15.1 F)
1962
-19.4 C (-2.9 F)
1963
-20.0 C (-4.0 F)
1964
-10.0 C (14.0 F)
1965
-8.3 C (17.1 F)
1966
-17.2 C (1.0 F)
1967
-7.8 C (18.0 F)
1968
-9.4 C (15.1 F)
1969
-8.9 C (16.0 F)
1970
-12.2 C (10.0 F)
1971
-9.4 C (15.1 F)
1972
-12.2 C (10.0 F)
1973
-7.2 C (19.0 F)
1974
-7.8 C (18.0 F)
1975
-8.3 C (17.1 F)
1976
-11.7 C (10.9 F)
1977
-15.6 C (3.9 F)
1978
-9.4 C (15.1 F)
1979
-10.6 C (12.9 F)
1980
-8.3 C (17.1 F)
1981
-11.7 C (10.9 F)
1982
-15.6 C (3.9 F)
Wettest day (Rx1day)
The wettest day of the year at Rosedale, 1894 to 1982. The record is 169.4 mm (6.7 in) in 1973, marked on the chart; the median year is 82.6 mm (3.3 in).
Wettest day (Rx1day) at Rosedale by year
Year
Wettest day (Rx1day)
1894
37.3 mm (1.5 in)
1895
41.1 mm (1.6 in)
1896
133.4 mm (5.3 in)
1897
87.9 mm (3.5 in)
1898
51.8 mm (2.0 in)
1899
45.0 mm (1.8 in)
1907
33.0 mm (1.3 in)
1908
61.0 mm (2.4 in)
1909
66.0 mm (2.6 in)
1910
50.8 mm (2.0 in)
1911
59.7 mm (2.4 in)
1912
52.1 mm (2.1 in)
1913
53.3 mm (2.1 in)
1914
53.3 mm (2.1 in)
1915
55.9 mm (2.2 in)
1916
80.3 mm (3.2 in)
1917
56.4 mm (2.2 in)
1918
82.8 mm (3.3 in)
1919
90.4 mm (3.6 in)
1920
66.8 mm (2.6 in)
1921
87.6 mm (3.4 in)
1922
86.4 mm (3.4 in)
1923
125.0 mm (4.9 in)
1924
52.1 mm (2.1 in)
1925
108.0 mm (4.3 in)
1926
73.7 mm (2.9 in)
1927
142.7 mm (5.6 in)
1928
78.7 mm (3.1 in)
1929
157.5 mm (6.2 in)
1930
99.6 mm (3.9 in)
1931
80.8 mm (3.2 in)
1932
114.8 mm (4.5 in)
1933
110.2 mm (4.3 in)
1934
140.5 mm (5.5 in)
1935
82.6 mm (3.3 in)
1936
59.7 mm (2.4 in)
1940
118.1 mm (4.6 in)
1941
104.1 mm (4.1 in)
1942
88.9 mm (3.5 in)
1943
76.2 mm (3.0 in)
1944
77.0 mm (3.0 in)
1945
82.6 mm (3.3 in)
1946
99.1 mm (3.9 in)
1947
120.7 mm (4.8 in)
1948
111.8 mm (4.4 in)
1949
68.6 mm (2.7 in)
1950
110.5 mm (4.4 in)
1951
81.3 mm (3.2 in)
1952
91.4 mm (3.6 in)
1953
104.1 mm (4.1 in)
1954
47.5 mm (1.9 in)
1955
76.2 mm (3.0 in)
1956
71.1 mm (2.8 in)
1957
76.2 mm (3.0 in)
1958
110.0 mm (4.3 in)
1959
49.3 mm (1.9 in)
1960
66.0 mm (2.6 in)
1961
139.7 mm (5.5 in)
1962
78.7 mm (3.1 in)
1963
108.0 mm (4.3 in)
1964
59.2 mm (2.3 in)
1965
109.7 mm (4.3 in)
1966
137.7 mm (5.4 in)
1967
44.2 mm (1.7 in)
1968
115.1 mm (4.5 in)
1969
77.2 mm (3.0 in)
1970
89.7 mm (3.5 in)
1971
102.9 mm (4.1 in)
1972
101.6 mm (4.0 in)
1973
169.4 mm (6.7 in)
1974
91.4 mm (3.6 in)
1975
84.1 mm (3.3 in)
1976
55.9 mm (2.2 in)
1977
93.5 mm (3.7 in)
1978
87.6 mm (3.4 in)
1979
119.9 mm (4.7 in)
1980
116.8 mm (4.6 in)
1981
68.1 mm (2.7 in)
1982
55.9 mm (2.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rosedale, 1894 to 1982. The record is 254.5 mm (10.0 in) in 1958, marked on the chart; the median year is 141.0 mm (5.6 in).
Wettest five days (Rx5day) at Rosedale by year
Year
Wettest five days (Rx5day)
1894
60.1 mm (2.4 in)
1895
63.8 mm (2.5 in)
1896
149.7 mm (5.9 in)
1897
141.4 mm (5.6 in)
1898
141.0 mm (5.6 in)
1899
69.9 mm (2.8 in)
1907
71.4 mm (2.8 in)
1908
165.2 mm (6.5 in)
1909
97.8 mm (3.9 in)
1910
142.3 mm (5.6 in)
1911
171.8 mm (6.8 in)
1912
148.7 mm (5.9 in)
1913
157.5 mm (6.2 in)
1914
110.5 mm (4.4 in)
1915
94.0 mm (3.7 in)
1916
94.8 mm (3.7 in)
1917
110.3 mm (4.3 in)
1918
97.9 mm (3.9 in)
1919
188.2 mm (7.4 in)
1920
117.6 mm (4.6 in)
1921
158.7 mm (6.2 in)
1922
136.5 mm (5.4 in)
1923
206.5 mm (8.1 in)
1924
90.9 mm (3.6 in)
1925
240.8 mm (9.5 in)
1926
175.2 mm (6.9 in)
1927
171.1 mm (6.7 in)
1928
90.6 mm (3.6 in)
1929
171.7 mm (6.8 in)
1930
150.5 mm (5.9 in)
1931
196.3 mm (7.7 in)
1932
145.5 mm (5.7 in)
1933
142.8 mm (5.6 in)
1934
155.2 mm (6.1 in)
1935
187.3 mm (7.4 in)
1936
70.9 mm (2.8 in)
1940
189.9 mm (7.5 in)
1941
144.2 mm (5.7 in)
1942
106.7 mm (4.2 in)
1943
20.6 mm (0.8 in)
1944
186.7 mm (7.4 in)
1945
113.8 mm (4.5 in)
1946
167.8 mm (6.6 in)
1947
120.7 mm (4.8 in)
1948
151.5 mm (6.0 in)
1949
91.7 mm (3.6 in)
1950
171.5 mm (6.8 in)
1951
163.6 mm (6.4 in)
1952
100.3 mm (3.9 in)
1953
111.3 mm (4.4 in)
1954
82.6 mm (3.3 in)
1955
127.0 mm (5.0 in)
1956
177.0 mm (7.0 in)
1957
110.9 mm (4.4 in)
1958
254.5 mm (10.0 in)
1959
82.8 mm (3.3 in)
1960
133.9 mm (5.3 in)
1961
238.8 mm (9.4 in)
1962
122.5 mm (4.8 in)
1963
177.3 mm (7.0 in)
1964
128.9 mm (5.1 in)
1965
114.7 mm (4.5 in)
1966
185.0 mm (7.3 in)
1967
75.6 mm (3.0 in)
1968
144.0 mm (5.7 in)
1969
130.1 mm (5.1 in)
1970
128.3 mm (5.1 in)
1971
143.3 mm (5.6 in)
1972
138.2 mm (5.4 in)
1973
207.0 mm (8.1 in)
1974
181.7 mm (7.2 in)
1975
129.9 mm (5.1 in)
1976
122.5 mm (4.8 in)
1977
99.1 mm (3.9 in)
1978
106.1 mm (4.2 in)
1979
158.5 mm (6.2 in)
1980
176.3 mm (6.9 in)
1981
80.3 mm (3.2 in)
1982
149.4 mm (5.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rosedale, 1894 to 1982. The record is 47 days in 1897, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Rosedale by year
Year
Longest dry spell (CDD)
1894
28 days
1895
18 days
1896
39 days
1897
47 days
1898
22 days
1899
16 days
1907
23 days
1908
26 days
1909
26 days
1910
27 days
1911
28 days
1912
24 days
1913
18 days
1914
36 days
1915
24 days
1916
20 days
1917
23 days
1918
26 days
1919
13 days
1920
21 days
1921
25 days
1922
23 days
1923
25 days
1924
34 days
1925
34 days
1926
22 days
1927
20 days
1928
29 days
1929
30 days
1930
46 days
1931
35 days
1932
38 days
1933
21 days
1934
23 days
1935
26 days
1936
32 days
1940
12 days
1941
20 days
1942
14 days
1943
11 days
1944
42 days
1945
16 days
1946
41 days
1947
29 days
1948
25 days
1949
23 days
1950
23 days
1951
33 days
1952
33 days
1953
36 days
1954
32 days
1955
24 days
1956
38 days
1957
19 days
1958
21 days
1959
20 days
1960
15 days
1961
16 days
1962
18 days
1963
46 days
1964
22 days
1965
28 days
1966
21 days
1967
18 days
1968
22 days
1969
31 days
1970
33 days
1971
19 days
1972
24 days
1973
26 days
1974
17 days
1975
25 days
1976
17 days
1977
20 days
1978
17 days
1979
21 days
1980
31 days
1981
22 days
1982
11 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
58 years with a frost
Across 58 years with a frost, the median last spring frost at Rosedale falls on 20 March and the median first autumn frost on 4 November, which leaves a median of 229 days between them.
Fitted over all years, the growing season changes by +1.2 days per decade at this station.
Frost dates and growing season at Rosedale
Measure
Median, all years
Earliest period
Recent period (1951 to 1981)
Recent against earliest
Fitted trend
Last spring frost
20 March
n/a
21 March
n/a
-0.5 days per decade
First autumn frost
4 November
n/a
6 November
n/a
+0.7 days per decade
Growing days
229 days
n/a
231 days
n/a
+1.2 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
61 years, 1908 to 1981
A day with at least 83.9 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 177.5 mm (7.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Rosedale: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
83.9 mm (3.3 in)
5 years
110.7 mm (4.4 in)
10 years
127.7 mm (5.0 in)
25 years
148.5 mm (5.8 in)
50 years
163.3 mm (6.4 in)
100 years
177.5 mm (7.0 in)
Longer than the 61 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, 61 years of values from 1908 to 1981.
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: 169.4 mm (6.7 in) in 1973; 157.5 mm (6.2 in) in 1929; 142.7 mm (5.6 in) in 1927.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Rosedale standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rosedale 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.