Record envelope, standing records and threshold days for Riva (ITE00155370), Italy, with 96 years of record.
Key Facts for Riva
Riva (ITE00155370) is a weather station in Italy at 45.88 latitude and 10.84 longitude, 84 m (276 ft) above sea level.
The station reports from 1874 to 1969, 96 years of record.
1,464 records set at Riva still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Riva set a daily record low minimum temperature of 8.0 C (46.4 F) on 10 May 1969.
About the Station
Location: Italy, 45.88 latitude, 10.84 longitude.
Elevation: 84 m (276 ft).
Period of record: 1874 to 1969, 96 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 Riva. 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 Riva, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-10.0 C (14.0 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-10.0 C (14.0 F)
n/a
n/a
Mar
22.0 C (71.6 F)
-5.0 C (23.0 F)
n/a
n/a
Apr
27.0 C (80.6 F)
0.0 C (32.0 F)
n/a
n/a
May
30.0 C (86.0 F)
3.0 C (37.4 F)
n/a
n/a
Jun
34.0 C (93.2 F)
8.0 C (46.4 F)
n/a
n/a
Jul
35.0 C (95.0 F)
9.0 C (48.2 F)
n/a
n/a
Aug
32.2 C (90.0 F)
9.0 C (48.2 F)
n/a
n/a
Sep
31.0 C (87.8 F)
6.1 C (43.0 F)
n/a
n/a
Oct
25.1 C (77.2 F)
2.0 C (35.6 F)
n/a
n/a
Nov
20.0 C (68.0 F)
-4.0 C (24.8 F)
n/a
n/a
Dec
17.0 C (62.6 F)
-8.3 C (17.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Riva still stand. 1963 holds the most, with 67.
Standing records at Riva by the year they were set
Year set
Standing records
1876
18
1877
35
1878
33
1879
47
1880
18
1881
27
1882
39
1883
33
1884
32
1885
20
1886
16
1887
39
1888
27
1889
5
1890
17
1891
23
1892
26
1893
15
1894
14
1895
21
1896
25
1897
18
1898
13
1899
26
1900
23
1901
26
1902
14
1903
8
1904
20
1905
14
1906
11
1907
11
1908
10
1909
20
1910
20
1911
18
1912
33
1913
13
1914
11
1915
4
1949
20
1950
39
1951
17
1952
36
1953
15
1954
35
1955
15
1956
56
1957
25
1958
30
1959
17
1960
16
1961
35
1962
30
1963
67
1964
22
1965
44
1966
25
1967
32
1968
40
1969
5
All-Time Record Progression
8 new records
8 all-time records were set at Riva between 5 July 1950 and 23 January 1963. Each dot is a new record.
When Riva set new all-time records
Date
Kind
Detail
1950-07-05
Record high maximum temperature
Record high maximum temperature 34.0 C (93.2 F)
1952-07-03
Record high minimum temperature
Record high minimum temperature 26.0 C (78.8 F)
1952-07-04
Record high minimum temperature
Record high minimum temperature 27.0 C (80.6 F)
1956-02-15
Record low minimum temperature
Record low minimum temperature -9.0 C (15.8 F)
1956-02-16
Record low minimum temperature
Record low minimum temperature -10.0 C (14.0 F)
1957-07-08
Record high maximum temperature
Record high maximum temperature 35.0 C (95.0 F)
1957-07-08
Record high minimum temperature
Record high minimum temperature 28.0 C (82.4 F)
1963-01-23
Record low maximum temperature
Record low maximum temperature -3.0 C (26.6 F)
Wettest Day of Each Month
Apr: 118.0 mm (4.6 in)
The wettest day on record for each calendar month at Riva. The most was 118.0 mm (4.6 in) on 30 April 1882.
Record daily precipitation for each month at Riva
Month
Record daily precipitation (mm)
Date
Jan
79.6 mm (3.1 in)
3 January 1900
Feb
72.3 mm (2.8 in)
15 February 1888
Mar
71.3 mm (2.8 in)
25 March 1904
Apr
118.0 mm (4.6 in)
30 April 1882
May
56.7 mm (2.2 in)
25 May 1876
Jun
78.7 mm (3.1 in)
13 June 1903
Jul
74.6 mm (2.9 in)
7 July 1888
Aug
76.1 mm (3.0 in)
22 August 1891
Sep
106.3 mm (4.2 in)
15 September 1882
Oct
102.3 mm (4.0 in)
6 October 1892
Nov
109.3 mm (4.3 in)
7 November 1906
Dec
81.3 mm (3.2 in)
4 December 1876
Period of Record Coverage
1876 to 1969
Complete yearUnder 90 percent of days
58 years of record at Riva, 1876 to 1969. 7 years have data for under 90 percent of days and are left out of rankings: 1876, 1912, 1949, 1952, 1953, 1965, 1969.
Cooler than the station meanWarmer than the station mean
One stripe for each of 42 complete years at Riva, 1877 to 1968. Blue stripes are years cooler than the station's own mean of 13.2 C (55.8 F); red stripes are warmer. The coolest year was 1956, at 12.0 C (53.5 F), and the warmest was 1898, at 14.3 C (57.8 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Riva as warming stripes, 1877 to 1968
Year
Annual mean temperature
Difference from the station mean
1877
13.4 C
+0.13 C
1878
12.9 C
-0.35 C
1879
12.8 C
-0.50 C
1880
13.5 C
+0.27 C
1881
13.4 C
+0.11 C
1882
13.8 C
+0.52 C
1883
13.0 C
-0.27 C
1884
13.4 C
+0.15 C
1885
13.6 C
+0.36 C
1886
13.5 C
+0.29 C
1887
12.9 C
-0.37 C
1888
12.9 C
-0.34 C
1889
12.8 C
-0.50 C
1890
12.9 C
-0.32 C
1891
12.9 C
-0.35 C
1892
13.1 C
-0.12 C
1893
13.6 C
+0.39 C
1894
13.6 C
+0.37 C
1895
13.4 C
+0.19 C
1896
13.2 C
-0.07 C
1897
13.9 C
+0.66 C
1898
14.3 C
+1.08 C
1899
13.8 C
+0.51 C
1901
13.0 C
-0.24 C
1902
13.4 C
+0.16 C
1903
13.4 C
+0.19 C
1904
14.0 C
+0.76 C
1906
13.6 C
+0.31 C
1907
13.7 C
+0.44 C
1950
13.5 C
+0.29 C
1951
13.1 C
-0.14 C
1954
12.3 C
-1.00 C
1956
12.0 C
-1.28 C
1957
13.2 C
-0.09 C
1958
13.5 C
+0.20 C
1960
13.0 C
-0.27 C
1962
12.9 C
-0.38 C
1963
13.4 C
+0.12 C
1964
13.0 C
-0.24 C
1966
12.9 C
-0.35 C
1967
13.4 C
+0.12 C
1968
12.8 C
-0.50 C
The annual mean temperature here has fallen by 0.04 C (0.00 to 0.09) per decade over 1877 to 1968. In Fahrenheit: 0.08 F (0.00 to 0.15) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Riva
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.04 C (-0.09 to 0.00) per decade
-0.08 F (-0.15 to 0.00) per decade
1877 to 1968
42
Fall
Mean daily maximum
0.00 C (-0.05 to 0.04) per decade
-0.01 F (-0.10 to 0.08) per decade
1877 to 1968
42
Not clearly different from zero
Mean daily minimum
-0.08 C (-0.14 to -0.03) per decade
-0.1 F (-0.2 to -0.1) per decade
1877 to 1968
42
Fall
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
1874 to 1969
Yearly extremes at Riva: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.0 C (95.0 F)
1957
31.1 C (88.0 F)
58
Coldest night (TNn)
-10.0 C (14.0 F)
1956
-4.4 C (24.1 F)
61
Wettest day (Rx1day)
118.0 mm (4.6 in)
1882
61.9 mm (2.4 in)
42
Wettest five days (Rx5day)
223.2 mm (8.8 in)
1882
119.7 mm (4.7 in)
42
Longest dry spell (CDD)
54 days
1896
30 days
42
Hottest day (TXx)
The hottest day of the year at Riva, 1874 to 1969. The record is 35.0 C (95.0 F) in 1957, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at Riva by year
Year
Hottest day (TXx)
1874
n/a
1875
n/a
1876
29.7 C (85.5 F)
1877
31.8 C (89.2 F)
1878
29.6 C (85.3 F)
1879
32.0 C (89.6 F)
1880
32.3 C (90.1 F)
1881
33.0 C (91.4 F)
1882
31.7 C (89.1 F)
1883
31.3 C (88.3 F)
1884
32.5 C (90.5 F)
1885
31.4 C (88.5 F)
1886
32.0 C (89.6 F)
1887
32.2 C (90.0 F)
1888
31.8 C (89.2 F)
1889
30.2 C (86.4 F)
1890
29.8 C (85.6 F)
1891
30.5 C (86.9 F)
1892
31.3 C (88.3 F)
1893
31.2 C (88.2 F)
1894
31.3 C (88.3 F)
1895
31.0 C (87.8 F)
1896
30.8 C (87.4 F)
1897
31.6 C (88.9 F)
1898
30.4 C (86.7 F)
1899
31.4 C (88.5 F)
1900
33.0 C (91.4 F)
1901
30.6 C (87.1 F)
1902
31.6 C (88.9 F)
1903
29.4 C (84.9 F)
1904
32.4 C (90.3 F)
1905
31.9 C (89.4 F)
1906
30.9 C (87.6 F)
1907
30.1 C (86.2 F)
1908
29.7 C (85.5 F)
1909
31.4 C (88.5 F)
1910
28.7 C (83.7 F)
1911
31.7 C (89.1 F)
1912
28.3 C (82.9 F)
1913
n/a
1914
n/a
1915
n/a
1949
30.0 C (86.0 F)
1950
34.0 C (93.2 F)
1951
29.0 C (84.2 F)
1952
33.0 C (91.4 F)
1953
31.0 C (87.8 F)
1954
30.0 C (86.0 F)
1955
31.0 C (87.8 F)
1956
30.0 C (86.0 F)
1957
35.0 C (95.0 F)
1958
31.0 C (87.8 F)
1959
31.0 C (87.8 F)
1960
28.0 C (82.4 F)
1961
30.0 C (86.0 F)
1962
31.0 C (87.8 F)
1963
33.0 C (91.4 F)
1964
33.0 C (91.4 F)
1965
34.0 C (93.2 F)
1966
31.0 C (87.8 F)
1967
32.0 C (89.6 F)
1968
31.0 C (87.8 F)
1969
26.0 C (78.8 F)
Coldest night (TNn)
The coldest night of the year at Riva, 1874 to 1969. The record is -10.0 C (14.0 F) in 1956, marked on the chart; the median year is -4.4 C (24.1 F).
Coldest night (TNn) at Riva by year
Year
Coldest night (TNn)
1874
n/a
1875
n/a
1876
-2.2 C (28.0 F)
1877
-3.8 C (25.2 F)
1878
-5.9 C (21.4 F)
1879
-8.3 C (17.1 F)
1880
-7.9 C (17.8 F)
1881
-6.3 C (20.7 F)
1882
-0.9 C (30.4 F)
1883
-4.1 C (24.6 F)
1884
-2.3 C (27.9 F)
1885
-4.3 C (24.3 F)
1886
-2.7 C (27.1 F)
1887
-5.3 C (22.5 F)
1888
-6.2 C (20.8 F)
1889
-2.1 C (28.2 F)
1890
-4.3 C (24.3 F)
1891
-7.7 C (18.1 F)
1892
-3.6 C (25.5 F)
1893
-7.1 C (19.2 F)
1894
-3.6 C (25.5 F)
1895
-4.1 C (24.6 F)
1896
-1.3 C (29.7 F)
1897
-3.6 C (25.5 F)
1898
-0.7 C (30.7 F)
1899
-3.2 C (26.2 F)
1900
-1.7 C (28.9 F)
1901
-8.8 C (16.2 F)
1902
-1.0 C (30.2 F)
1903
-4.2 C (24.4 F)
1904
-2.0 C (28.4 F)
1905
-5.4 C (22.3 F)
1906
-5.1 C (22.8 F)
1907
-4.4 C (24.1 F)
1908
-2.2 C (28.0 F)
1909
-3.4 C (25.9 F)
1910
-0.9 C (30.4 F)
1911
-2.5 C (27.5 F)
1912
-1.7 C (28.9 F)
1913
-3.4 C (25.9 F)
1914
-1.2 C (29.8 F)
1915
-3.8 C (25.2 F)
1949
-5.0 C (23.0 F)
1950
-7.0 C (19.4 F)
1951
-2.0 C (28.4 F)
1952
-5.0 C (23.0 F)
1953
-5.0 C (23.0 F)
1954
-5.0 C (23.0 F)
1955
-3.0 C (26.6 F)
1956
-10.0 C (14.0 F)
1957
-5.0 C (23.0 F)
1958
-5.0 C (23.0 F)
1959
-6.0 C (21.2 F)
1960
-5.0 C (23.0 F)
1961
-5.0 C (23.0 F)
1962
-6.0 C (21.2 F)
1963
-10.0 C (14.0 F)
1964
-5.0 C (23.0 F)
1965
-5.0 C (23.0 F)
1966
-7.0 C (19.4 F)
1967
-6.5 C (20.3 F)
1968
-8.0 C (17.6 F)
1969
-7.0 C (19.4 F)
Wettest day (Rx1day)
The wettest day of the year at Riva, 1874 to 1969. The record is 118.0 mm (4.6 in) in 1882, marked on the chart; the median year is 61.9 mm (2.4 in).
Wettest day (Rx1day) at Riva by year
Year
Wettest day (Rx1day)
1874
63.4 mm (2.5 in)
1875
61.7 mm (2.4 in)
1876
81.3 mm (3.2 in)
1877
48.2 mm (1.9 in)
1878
86.0 mm (3.4 in)
1879
79.3 mm (3.1 in)
1880
88.4 mm (3.5 in)
1881
54.5 mm (2.1 in)
1882
118.0 mm (4.6 in)
1883
63.6 mm (2.5 in)
1884
35.9 mm (1.4 in)
1885
51.9 mm (2.0 in)
1886
75.2 mm (3.0 in)
1887
50.7 mm (2.0 in)
1888
74.6 mm (2.9 in)
1889
61.5 mm (2.4 in)
1890
64.5 mm (2.5 in)
1891
76.1 mm (3.0 in)
1892
102.3 mm (4.0 in)
1893
51.1 mm (2.0 in)
1894
45.9 mm (1.8 in)
1895
44.7 mm (1.8 in)
1896
64.9 mm (2.6 in)
1897
49.1 mm (1.9 in)
1898
55.1 mm (2.2 in)
1899
52.5 mm (2.1 in)
1900
79.6 mm (3.1 in)
1901
59.9 mm (2.4 in)
1902
66.3 mm (2.6 in)
1903
78.7 mm (3.1 in)
1904
71.3 mm (2.8 in)
1905
49.4 mm (1.9 in)
1906
109.3 mm (4.3 in)
1907
52.2 mm (2.1 in)
1908
73.7 mm (2.9 in)
1909
58.6 mm (2.3 in)
1910
51.3 mm (2.0 in)
1911
52.9 mm (2.1 in)
1912
62.1 mm (2.4 in)
1913
41.7 mm (1.6 in)
1914
74.5 mm (2.9 in)
1915
44.4 mm (1.7 in)
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
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
Wettest five days (Rx5day)
The wettest five days of the year at Riva, 1874 to 1969. The record is 223.2 mm (8.8 in) in 1882, marked on the chart; the median year is 119.7 mm (4.7 in).
Wettest five days (Rx5day) at Riva by year
Year
Wettest five days (Rx5day)
1874
156.1 mm (6.1 in)
1875
90.0 mm (3.5 in)
1876
141.3 mm (5.6 in)
1877
147.1 mm (5.8 in)
1878
109.2 mm (4.3 in)
1879
93.8 mm (3.7 in)
1880
165.3 mm (6.5 in)
1881
86.2 mm (3.4 in)
1882
223.2 mm (8.8 in)
1883
77.4 mm (3.0 in)
1884
79.9 mm (3.1 in)
1885
104.9 mm (4.1 in)
1886
169.5 mm (6.7 in)
1887
127.6 mm (5.0 in)
1888
181.0 mm (7.1 in)
1889
132.4 mm (5.2 in)
1890
111.5 mm (4.4 in)
1891
140.6 mm (5.5 in)
1892
116.7 mm (4.6 in)
1893
78.0 mm (3.1 in)
1894
69.4 mm (2.7 in)
1895
135.7 mm (5.3 in)
1896
147.8 mm (5.8 in)
1897
84.0 mm (3.3 in)
1898
148.3 mm (5.8 in)
1899
75.4 mm (3.0 in)
1900
130.2 mm (5.1 in)
1901
128.8 mm (5.1 in)
1902
82.7 mm (3.3 in)
1903
145.0 mm (5.7 in)
1904
119.1 mm (4.7 in)
1905
108.1 mm (4.3 in)
1906
166.9 mm (6.6 in)
1907
83.1 mm (3.3 in)
1908
79.4 mm (3.1 in)
1909
129.5 mm (5.1 in)
1910
113.6 mm (4.5 in)
1911
120.3 mm (4.7 in)
1912
93.5 mm (3.7 in)
1913
78.3 mm (3.1 in)
1914
121.2 mm (4.8 in)
1915
120.2 mm (4.7 in)
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
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Riva, 1874 to 1969. The record is 54 days in 1896, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Riva by year
Year
Longest dry spell (CDD)
1874
29 days
1875
27 days
1876
19 days
1877
30 days
1878
46 days
1879
27 days
1880
40 days
1881
27 days
1882
49 days
1883
24 days
1884
36 days
1885
22 days
1886
17 days
1887
31 days
1888
42 days
1889
18 days
1890
37 days
1891
30 days
1892
27 days
1893
42 days
1894
28 days
1895
32 days
1896
54 days
1897
38 days
1898
42 days
1899
52 days
1900
22 days
1901
30 days
1902
32 days
1903
29 days
1904
23 days
1905
29 days
1906
23 days
1907
42 days
1908
39 days
1909
24 days
1910
14 days
1911
36 days
1912
19 days
1913
25 days
1914
35 days
1915
23 days
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
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
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
37 years with a frost
Across 37 years with a frost, the median last spring frost at Riva falls on 25 February and the median first autumn frost on 6 December, which leaves a median of 283 days between them.
Fitted over all years, the growing season changes by -3.7 days per decade at this station.
Frost dates and growing season at Riva
Measure
Median, all years
Earliest period
Recent period (1885 to 1968)
Recent against earliest
Fitted trend
Last spring frost
25 February
n/a
25 February
n/a
+2.1 days per decade
First autumn frost
6 December
n/a
6 December
n/a
-1.6 days per decade
Growing days
283 days
n/a
283 days
n/a
-3.7 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
41 years, 1874 to 1914
A day with at least 62.0 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 126.4 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Riva: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
62.0 mm (2.4 in)
5 years
78.2 mm (3.1 in)
10 years
89.3 mm (3.5 in)
25 years
103.9 mm (4.1 in)
50 years
115.0 mm (4.5 in)
Longer than the 41 years of record
100 years
126.4 mm (5.0 in)
Longer than the 41 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, 41 years of values from 1874 to 1914.
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: 118.0 mm (4.6 in) in 1882; 109.3 mm (4.3 in) in 1906; 102.3 mm (4.0 in) in 1892.
Download the Data
Data for Riva standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Riva 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.