Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Roma Post Office. 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 Roma Post Office, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
44.5 C (112.1 F)
12.5 C (54.5 F)
n/a
n/a
Feb
42.9 C (109.2 F)
9.7 C (49.5 F)
n/a
n/a
Mar
41.1 C (106.0 F)
6.1 C (43.0 F)
n/a
n/a
Apr
36.1 C (97.0 F)
1.3 C (34.3 F)
n/a
n/a
May
32.2 C (90.0 F)
-2.8 C (27.0 F)
n/a
n/a
Jun
32.8 C (91.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
29.4 C (84.9 F)
-5.0 C (23.0 F)
n/a
n/a
Aug
34.3 C (93.7 F)
-4.5 C (23.9 F)
n/a
n/a
Sep
39.4 C (102.9 F)
-0.6 C (30.9 F)
n/a
n/a
Oct
42.2 C (108.0 F)
2.0 C (35.6 F)
n/a
n/a
Nov
43.4 C (110.1 F)
5.6 C (42.1 F)
n/a
n/a
Dec
44.0 C (111.2 F)
9.1 C (48.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Roma Post Office still stand. 1958 holds the most, with 70.
Standing records at Roma Post Office by the year they were set
Year set
Standing records
1957
68
1958
70
1959
26
1960
45
1961
40
1962
39
1963
26
1964
53
1965
51
1966
39
1967
34
1968
38
1969
40
1970
37
1971
41
1972
44
1973
49
1974
43
1975
44
1976
34
1977
29
1978
53
1979
39
1980
42
1981
42
1982
43
1983
50
1984
36
1985
34
1986
44
1987
29
1988
34
1989
43
1990
39
1991
34
1992
12
All-Time Record Progression
2 new records
2 all-time records were set at Roma Post Office between 27 December 1971 and 16 January 1977. Each dot is a new record.
When Roma Post Office set new all-time records
Date
Kind
Detail
1971-12-27
Record daily precipitation
Record daily precipitation 144.8 mm (5.7 in)
1977-01-16
Record daily precipitation
Record daily precipitation 174.0 mm (6.9 in)
Wettest Day of Each Month
Jan: 174.0 mm (6.9 in)
The wettest day on record for each calendar month at Roma Post Office. The most was 174.0 mm (6.9 in) on 16 January 1977.
Record daily precipitation for each month at Roma Post Office
Month
Record daily precipitation (mm)
Date
Jan
174.0 mm (6.9 in)
16 January 1977
Feb
118.1 mm (4.6 in)
15 February 1890
Mar
138.6 mm (5.5 in)
5 March 1979
Apr
82.6 mm (3.3 in)
16 April 1990
May
111.8 mm (4.4 in)
25 May 1938
Jun
71.3 mm (2.8 in)
1 June 1981
Jul
83.3 mm (3.3 in)
1 July 1921
Aug
47.2 mm (1.9 in)
10 August 1891
Sep
105.9 mm (4.2 in)
16 September 1903
Oct
113.8 mm (4.5 in)
25 October 1989
Nov
110.0 mm (4.3 in)
4 November 1916
Dec
144.8 mm (5.7 in)
27 December 1971
Period of Record Coverage
1957 to 1992
Complete yearUnder 90 percent of days
36 years of record at Roma Post Office, 1957 to 1992. 2 years have data for under 90 percent of days and are left out of rankings: 1968, 1992.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Roma Post Office, 1957 to 1991. Blue stripes are years cooler than the station's own mean of 20.6 C (69.1 F); red stripes are warmer. The coolest year was 1978, at 19.4 C (66.9 F), and the warmest was 1958, at 21.7 C (71.1 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Roma Post Office as warming stripes, 1957 to 1991
Year
Annual mean temperature
Difference from the station mean
1957
21.4 C
+0.81 C
1958
21.7 C
+1.09 C
1959
20.4 C
-0.27 C
1960
20.3 C
-0.34 C
1961
20.3 C
-0.30 C
1962
20.2 C
-0.41 C
1963
20.4 C
-0.23 C
1964
20.5 C
-0.14 C
1965
21.4 C
+0.74 C
1966
20.5 C
-0.15 C
1967
21.1 C
+0.42 C
1969
21.2 C
+0.54 C
1970
20.3 C
-0.38 C
1971
20.3 C
-0.32 C
1972
20.6 C
-0.01 C
1973
21.2 C
+0.59 C
1974
19.9 C
-0.74 C
1975
20.6 C
+0.00 C
1976
19.7 C
-0.89 C
1977
20.4 C
-0.24 C
1978
19.4 C
-1.25 C
1979
20.9 C
+0.24 C
1980
21.2 C
+0.61 C
1981
20.6 C
-0.02 C
1982
20.5 C
-0.16 C
1983
20.6 C
-0.05 C
1984
19.8 C
-0.85 C
1985
20.5 C
-0.15 C
1986
21.0 C
+0.39 C
1987
21.2 C
+0.56 C
1988
20.9 C
+0.27 C
1989
20.1 C
-0.58 C
1990
20.9 C
+0.23 C
1991
21.5 C
+0.86 C
The fitted trend in annual mean temperature here over 1957 to 1991 is -0.02 C (-0.21 to 0.17) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.38 to 0.30) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Roma Post Office
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.02 C (-0.21 to 0.17) per decade
-0.04 F (-0.38 to 0.30) per decade
1957 to 1991
34
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.4 to 0.1) per decade
-0.3 F (-0.7 to 0.2) per decade
1957 to 1991
34
Not clearly different from zero
Mean daily minimum
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.2 to 0.5) per decade
1957 to 1991
34
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
1872 to 1993
Yearly extremes at Roma Post Office: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.5 C (112.1 F)
1980
41.5 C (106.7 F)
36
Coldest night (TNn)
-5.0 C (23.0 F)
1978
-2.4 C (27.6 F)
36
Wettest day (Rx1day)
174.0 mm (6.9 in)
1977
56.4 mm (2.2 in)
116
Wettest five days (Rx5day)
345.4 mm (13.6 in)
1890
92.1 mm (3.6 in)
116
Longest dry spell (CDD)
127 days
1935
44 days
116
Hottest day (TXx)
The hottest day of the year at Roma Post Office, 1872 to 1993. The record is 44.5 C (112.1 F) in 1980, marked on the chart; the median year is 41.5 C (106.7 F).
Hottest day (TXx) at Roma Post Office by year
Year
Hottest day (TXx)
1872
n/a
1873
n/a
1874
n/a
1875
n/a
1876
n/a
1878
n/a
1880
n/a
1881
n/a
1883
n/a
1887
n/a
1888
n/a
1889
n/a
1890
n/a
1891
n/a
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
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
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
42.2 C (108.0 F)
1958
43.3 C (109.9 F)
1959
40.6 C (105.1 F)
1960
42.2 C (108.0 F)
1961
40.6 C (105.1 F)
1962
41.4 C (106.5 F)
1963
40.0 C (104.0 F)
1964
42.7 C (108.9 F)
1965
43.4 C (110.1 F)
1966
41.1 C (106.0 F)
1967
43.5 C (110.3 F)
1968
42.4 C (108.3 F)
1969
42.9 C (109.2 F)
1970
40.6 C (105.1 F)
1971
40.0 C (104.0 F)
1972
43.7 C (110.7 F)
1973
42.5 C (108.5 F)
1974
41.5 C (106.7 F)
1975
40.3 C (104.5 F)
1976
40.5 C (104.9 F)
1977
41.5 C (106.7 F)
1978
40.5 C (104.9 F)
1979
42.5 C (108.5 F)
1980
44.5 C (112.1 F)
1981
44.0 C (111.2 F)
1982
43.0 C (109.4 F)
1983
42.0 C (107.6 F)
1984
40.0 C (104.0 F)
1985
41.5 C (106.7 F)
1986
43.1 C (109.6 F)
1987
41.2 C (106.2 F)
1988
40.6 C (105.1 F)
1989
40.0 C (104.0 F)
1990
43.0 C (109.4 F)
1991
40.6 C (105.1 F)
1992
40.7 C (105.3 F)
1993
n/a
Coldest night (TNn)
The coldest night of the year at Roma Post Office, 1872 to 1993. The record is -5.0 C (23.0 F) in 1978, marked on the chart; the median year is -2.4 C (27.6 F).
Coldest night (TNn) at Roma Post Office by year
Year
Coldest night (TNn)
1872
n/a
1873
n/a
1874
n/a
1875
n/a
1876
n/a
1878
n/a
1880
n/a
1881
n/a
1883
n/a
1887
n/a
1888
n/a
1889
n/a
1890
n/a
1891
n/a
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
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
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
-2.8 C (27.0 F)
1958
-2.8 C (27.0 F)
1959
-3.9 C (25.0 F)
1960
-2.2 C (28.0 F)
1961
-2.8 C (27.0 F)
1962
-2.2 C (28.0 F)
1963
-4.5 C (23.9 F)
1964
-2.0 C (28.4 F)
1965
-2.7 C (27.1 F)
1966
-1.2 C (29.8 F)
1967
-1.0 C (30.2 F)
1968
-2.4 C (27.7 F)
1969
0.0 C (32.0 F)
1970
-2.6 C (27.3 F)
1971
-3.4 C (25.9 F)
1972
-3.3 C (26.1 F)
1973
0.5 C (32.9 F)
1974
-2.2 C (28.0 F)
1975
-1.5 C (29.3 F)
1976
-4.5 C (23.9 F)
1977
-4.5 C (23.9 F)
1978
-5.0 C (23.0 F)
1979
-3.0 C (26.6 F)
1980
-2.5 C (27.5 F)
1981
-2.0 C (28.4 F)
1982
-4.0 C (24.8 F)
1983
-1.5 C (29.3 F)
1984
-2.0 C (28.4 F)
1985
-2.5 C (27.5 F)
1986
-3.0 C (26.6 F)
1987
-2.2 C (28.0 F)
1988
-2.4 C (27.7 F)
1989
-2.2 C (28.0 F)
1990
-2.0 C (28.4 F)
1991
-2.5 C (27.5 F)
1992
-2.0 C (28.4 F)
1993
n/a
Wettest day (Rx1day)
The wettest day of the year at Roma Post Office, 1872 to 1993. The record is 174.0 mm (6.9 in) in 1977, marked on the chart; the median year is 56.4 mm (2.2 in).
Wettest day (Rx1day) at Roma Post Office by year
Year
Wettest day (Rx1day)
1872
0.0 mm (0.00 in)
1873
0.0 mm (0.00 in)
1874
0.0 mm (0.00 in)
1875
0.0 mm (0.00 in)
1876
0.0 mm (0.00 in)
1878
0.0 mm (0.00 in)
1880
0.0 mm (0.00 in)
1881
0.0 mm (0.00 in)
1883
0.0 mm (0.00 in)
1887
37.1 mm (1.5 in)
1888
51.1 mm (2.0 in)
1889
51.1 mm (2.0 in)
1890
132.1 mm (5.2 in)
1891
109.7 mm (4.3 in)
1892
36.6 mm (1.4 in)
1893
52.1 mm (2.1 in)
1894
65.0 mm (2.6 in)
1895
73.7 mm (2.9 in)
1896
52.8 mm (2.1 in)
1897
57.9 mm (2.3 in)
1898
51.1 mm (2.0 in)
1899
72.9 mm (2.9 in)
1900
51.8 mm (2.0 in)
1901
48.8 mm (1.9 in)
1902
45.5 mm (1.8 in)
1903
105.9 mm (4.2 in)
1904
46.5 mm (1.8 in)
1905
45.5 mm (1.8 in)
1906
115.1 mm (4.5 in)
1907
69.9 mm (2.8 in)
1908
76.2 mm (3.0 in)
1909
88.1 mm (3.5 in)
1910
106.7 mm (4.2 in)
1911
59.7 mm (2.4 in)
1912
71.1 mm (2.8 in)
1913
51.1 mm (2.0 in)
1914
96.5 mm (3.8 in)
1915
36.8 mm (1.4 in)
1916
110.0 mm (4.3 in)
1917
59.7 mm (2.4 in)
1918
62.2 mm (2.4 in)
1919
38.9 mm (1.5 in)
1920
53.8 mm (2.1 in)
1921
83.3 mm (3.3 in)
1922
62.2 mm (2.4 in)
1923
47.5 mm (1.9 in)
1924
82.3 mm (3.2 in)
1925
65.0 mm (2.6 in)
1926
51.3 mm (2.0 in)
1927
35.8 mm (1.4 in)
1928
57.7 mm (2.3 in)
1929
64.0 mm (2.5 in)
1930
54.6 mm (2.1 in)
1931
71.1 mm (2.8 in)
1932
43.4 mm (1.7 in)
1933
49.5 mm (1.9 in)
1934
70.4 mm (2.8 in)
1935
31.0 mm (1.2 in)
1936
50.8 mm (2.0 in)
1937
113.0 mm (4.4 in)
1938
111.8 mm (4.4 in)
1939
93.5 mm (3.7 in)
1940
59.7 mm (2.4 in)
1941
60.5 mm (2.4 in)
1942
79.5 mm (3.1 in)
1943
46.2 mm (1.8 in)
1944
37.8 mm (1.5 in)
1945
52.6 mm (2.1 in)
1946
27.7 mm (1.1 in)
1947
43.4 mm (1.7 in)
1948
49.0 mm (1.9 in)
1949
73.7 mm (2.9 in)
1950
51.3 mm (2.0 in)
1951
31.0 mm (1.2 in)
1952
52.1 mm (2.1 in)
1953
81.0 mm (3.2 in)
1954
83.3 mm (3.3 in)
1955
61.7 mm (2.4 in)
1956
117.1 mm (4.6 in)
1957
51.8 mm (2.0 in)
1958
55.4 mm (2.2 in)
1959
86.4 mm (3.4 in)
1960
36.1 mm (1.4 in)
1961
91.4 mm (3.6 in)
1962
78.7 mm (3.1 in)
1963
68.6 mm (2.7 in)
1964
62.2 mm (2.4 in)
1965
36.3 mm (1.4 in)
1966
37.3 mm (1.5 in)
1967
70.4 mm (2.8 in)
1968
44.2 mm (1.7 in)
1969
57.4 mm (2.3 in)
1970
51.8 mm (2.0 in)
1971
144.8 mm (5.7 in)
1972
59.4 mm (2.3 in)
1973
61.2 mm (2.4 in)
1974
54.0 mm (2.1 in)
1975
43.4 mm (1.7 in)
1976
52.4 mm (2.1 in)
1977
174.0 mm (6.9 in)
1978
44.4 mm (1.7 in)
1979
138.6 mm (5.5 in)
1980
79.1 mm (3.1 in)
1981
71.3 mm (2.8 in)
1982
47.4 mm (1.9 in)
1983
53.2 mm (2.1 in)
1984
57.4 mm (2.3 in)
1985
90.0 mm (3.5 in)
1986
65.0 mm (2.6 in)
1987
67.0 mm (2.6 in)
1988
51.4 mm (2.0 in)
1989
113.8 mm (4.5 in)
1990
82.6 mm (3.3 in)
1991
64.4 mm (2.5 in)
1992
35.2 mm (1.4 in)
1993
7.0 mm (0.28 in)
Wettest five days (Rx5day)
The wettest five days of the year at Roma Post Office, 1872 to 1993. The record is 345.4 mm (13.6 in) in 1890, marked on the chart; the median year is 92.1 mm (3.6 in).
Wettest five days (Rx5day) at Roma Post Office by year
Year
Wettest five days (Rx5day)
1872
0.0 mm (0.00 in)
1873
0.0 mm (0.00 in)
1874
0.0 mm (0.00 in)
1875
0.0 mm (0.00 in)
1876
0.0 mm (0.00 in)
1878
0.0 mm (0.00 in)
1880
0.0 mm (0.00 in)
1881
0.0 mm (0.00 in)
1883
0.0 mm (0.00 in)
1887
67.9 mm (2.7 in)
1888
92.0 mm (3.6 in)
1889
70.6 mm (2.8 in)
1890
345.4 mm (13.6 in)
1891
166.6 mm (6.6 in)
1892
52.3 mm (2.1 in)
1893
76.7 mm (3.0 in)
1894
109.9 mm (4.3 in)
1895
117.7 mm (4.6 in)
1896
75.9 mm (3.0 in)
1897
74.7 mm (2.9 in)
1898
98.4 mm (3.9 in)
1899
80.3 mm (3.2 in)
1900
71.1 mm (2.8 in)
1901
56.2 mm (2.2 in)
1902
45.5 mm (1.8 in)
1903
149.5 mm (5.9 in)
1904
92.2 mm (3.6 in)
1905
57.9 mm (2.3 in)
1906
261.7 mm (10.3 in)
1907
114.8 mm (4.5 in)
1908
146.1 mm (5.8 in)
1909
121.4 mm (4.8 in)
1910
154.5 mm (6.1 in)
1911
146.2 mm (5.8 in)
1912
141.7 mm (5.6 in)
1913
80.3 mm (3.2 in)
1914
166.8 mm (6.6 in)
1915
36.8 mm (1.4 in)
1916
118.7 mm (4.7 in)
1917
100.6 mm (4.0 in)
1918
85.1 mm (3.4 in)
1919
48.8 mm (1.9 in)
1920
102.3 mm (4.0 in)
1921
105.2 mm (4.1 in)
1922
67.6 mm (2.7 in)
1923
57.4 mm (2.3 in)
1924
120.9 mm (4.8 in)
1925
73.6 mm (2.9 in)
1926
104.6 mm (4.1 in)
1927
56.4 mm (2.2 in)
1928
78.0 mm (3.1 in)
1929
145.2 mm (5.7 in)
1930
64.6 mm (2.5 in)
1931
131.1 mm (5.2 in)
1932
63.5 mm (2.5 in)
1933
74.0 mm (2.9 in)
1934
95.3 mm (3.8 in)
1935
70.8 mm (2.8 in)
1936
130.6 mm (5.1 in)
1937
176.7 mm (7.0 in)
1938
180.5 mm (7.1 in)
1939
129.3 mm (5.1 in)
1940
122.7 mm (4.8 in)
1941
94.1 mm (3.7 in)
1942
99.9 mm (3.9 in)
1943
124.2 mm (4.9 in)
1944
53.8 mm (2.1 in)
1945
63.1 mm (2.5 in)
1946
50.6 mm (2.0 in)
1947
93.7 mm (3.7 in)
1948
65.1 mm (2.6 in)
1949
171.8 mm (6.8 in)
1950
142.7 mm (5.6 in)
1951
31.0 mm (1.2 in)
1952
108.7 mm (4.3 in)
1953
148.9 mm (5.9 in)
1954
139.4 mm (5.5 in)
1955
110.2 mm (4.3 in)
1956
159.8 mm (6.3 in)
1957
62.7 mm (2.5 in)
1958
115.4 mm (4.5 in)
1959
100.7 mm (4.0 in)
1960
39.4 mm (1.6 in)
1961
150.0 mm (5.9 in)
1962
121.2 mm (4.8 in)
1963
129.6 mm (5.1 in)
1964
82.8 mm (3.3 in)
1965
86.9 mm (3.4 in)
1966
59.4 mm (2.3 in)
1967
72.7 mm (2.9 in)
1968
67.3 mm (2.6 in)
1969
69.8 mm (2.7 in)
1970
109.4 mm (4.3 in)
1971
169.7 mm (6.7 in)
1972
71.4 mm (2.8 in)
1973
108.4 mm (4.3 in)
1974
83.2 mm (3.3 in)
1975
122.5 mm (4.8 in)
1976
99.6 mm (3.9 in)
1977
184.8 mm (7.3 in)
1978
71.8 mm (2.8 in)
1979
169.8 mm (6.7 in)
1980
105.3 mm (4.1 in)
1981
83.7 mm (3.3 in)
1982
77.8 mm (3.1 in)
1983
116.5 mm (4.6 in)
1984
114.9 mm (4.5 in)
1985
90.8 mm (3.6 in)
1986
74.5 mm (2.9 in)
1987
77.7 mm (3.1 in)
1988
83.4 mm (3.3 in)
1989
197.2 mm (7.8 in)
1990
148.8 mm (5.9 in)
1991
108.4 mm (4.3 in)
1992
72.2 mm (2.8 in)
1993
7.0 mm (0.28 in)
Longest dry spell (CDD)
The longest dry spell of the year at Roma Post Office, 1872 to 1993. The record is 127 days in 1935, marked on the chart; the median year is 44 days.
Longest dry spell (CDD) at Roma Post Office by year
Year
Longest dry spell (CDD)
1872
30 days
1873
31 days
1874
30 days
1875
31 days
1876
61 days
1878
31 days
1880
31 days
1881
61 days
1883
30 days
1887
35 days
1888
60 days
1889
23 days
1890
36 days
1891
32 days
1892
23 days
1893
28 days
1894
35 days
1895
57 days
1896
40 days
1897
86 days
1898
44 days
1899
32 days
1900
35 days
1901
35 days
1902
65 days
1903
36 days
1904
57 days
1905
37 days
1906
55 days
1907
53 days
1908
51 days
1909
42 days
1910
42 days
1911
40 days
1912
77 days
1913
53 days
1914
45 days
1915
33 days
1916
48 days
1917
40 days
1918
65 days
1919
71 days
1920
31 days
1921
59 days
1922
89 days
1923
44 days
1924
27 days
1925
50 days
1926
45 days
1927
40 days
1928
100 days
1929
58 days
1930
47 days
1931
48 days
1932
40 days
1933
39 days
1934
37 days
1935
127 days
1936
73 days
1937
43 days
1938
56 days
1939
54 days
1940
46 days
1941
61 days
1942
37 days
1943
24 days
1944
61 days
1945
29 days
1946
84 days
1947
63 days
1948
54 days
1949
83 days
1950
36 days
1951
64 days
1952
28 days
1953
51 days
1954
26 days
1955
23 days
1956
50 days
1957
60 days
1958
31 days
1959
50 days
1960
53 days
1961
35 days
1962
44 days
1963
65 days
1964
43 days
1965
62 days
1966
33 days
1967
48 days
1968
36 days
1969
42 days
1970
47 days
1971
37 days
1972
40 days
1973
33 days
1974
37 days
1975
79 days
1976
46 days
1977
44 days
1978
38 days
1979
32 days
1980
46 days
1981
46 days
1982
48 days
1983
39 days
1984
30 days
1985
37 days
1986
55 days
1987
36 days
1988
35 days
1989
47 days
1990
44 days
1991
69 days
1992
38 days
1993
19 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
32 years with a frost
Across 32 years with a frost, the median last spring frost at Roma Post Office falls on 11 August and the median first autumn frost on 21 June, which leaves a median of 316 days between them.
Fitted over all years, the growing season changes by +4.8 days per decade at this station.
Frost dates and growing season at Roma Post Office
Measure
Median, all years
Earliest period
Recent period (1959 to 1991)
Recent against earliest
Fitted trend
Last spring frost
11 August
n/a
9 August
n/a
-3.2 days per decade
First autumn frost
21 June
n/a
21 June
n/a
+1.5 days per decade
Growing days
316 days
n/a
319 days
n/a
+4.8 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
100 years, 1890 to 1991
A day with at least 61.1 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 168.3 mm (6.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Roma Post Office: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
61.1 mm (2.4 in)
5 years
83.9 mm (3.3 in)
10 years
101.2 mm (4.0 in)
25 years
125.7 mm (4.9 in)
50 years
146.0 mm (5.7 in)
100 years
168.3 mm (6.6 in)
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 100 years of values from 1890 to 1991.
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: 174.0 mm (6.9 in) in 1977; 144.8 mm (5.7 in) in 1971; 138.6 mm (5.5 in) in 1979.
Download the Data
Data for Roma Post Office standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Roma Post Office 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.