Roma Ciampino Weather Records (IT000016239)
Record envelope, standing records and threshold days for Roma Ciampino (IT000016239), Italy, with 75 years of record.
Key Facts for Roma Ciampino
- Roma Ciampino (IT000016239) is a weather station in Italy at 41.78 latitude and 12.58 longitude, 105 m (344 ft) above sea level.
- The station reports from 1951 to 2025, 75 years of record.
- 1,464 records set at Roma Ciampino still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Roma Ciampino set a daily record high minimum temperature of 23.0 C (73.4 F) on 5 July 2025.
About the Station
- Location: Italy, 41.78 latitude, 12.58 longitude.
- Elevation: 105 m (344 ft).
- Period of record: 1951 to 2025, 75 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
10 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 20.8 C (69.4 F) | -11.0 C (12.2 F) | 17.4 C (63.3 F) | -0.2 C (31.6 F) |
| Feb | 22.4 C (72.3 F) | -6.9 C (19.6 F) | 17.4 C (63.3 F) | 1.7 C (35.1 F) |
| Mar | 26.6 C (79.9 F) | -6.5 C (20.3 F) | 21.3 C (70.3 F) | 3.2 C (37.8 F) |
| Apr | 30.0 C (86.0 F) | -2.4 C (27.7 F) | 24.6 C (76.3 F) | 7.3 C (45.1 F) |
| May | 34.2 C (93.6 F) | 1.8 C (35.2 F) | 30.1 C (86.2 F) | 8.1 C (46.6 F) |
| Jun | 39.3 C (102.7 F) | 5.6 C (42.1 F) | 37.1 C (98.8 F) | 15.9 C (60.6 F) |
| Jul | 39.4 C (102.9 F) | 9.1 C (48.4 F) | 37.1 C (98.8 F) | 17.4 C (63.3 F) |
| Aug | 40.6 C (105.1 F) | 9.3 C (48.7 F) | 38.0 C (100.4 F) | 16.7 C (62.1 F) |
| Sep | 38.4 C (101.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| Oct | 31.9 C (89.4 F) | 0.8 C (33.4 F) | n/a | n/a |
| Nov | 26.1 C (79.0 F) | -5.2 C (22.6 F) | n/a | n/a |
| Dec | 20.8 C (69.4 F) | -5.6 C (21.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1951 | 18 |
| 1952 | 29 |
| 1953 | 18 |
| 1954 | 17 |
| 1955 | 16 |
| 1956 | 42 |
| 1957 | 18 |
| 1958 | 24 |
| 1959 | 13 |
| 1960 | 23 |
| 1961 | 31 |
| 1962 | 36 |
| 1963 | 34 |
| 1964 | 19 |
| 1965 | 21 |
| 1966 | 13 |
| 1967 | 23 |
| 1968 | 26 |
| 1969 | 20 |
| 1970 | 23 |
| 1971 | 22 |
| 1972 | 23 |
| 1973 | 19 |
| 1974 | 14 |
| 1975 | 13 |
| 1976 | 5 |
| 1977 | 34 |
| 1978 | 30 |
| 1979 | 31 |
| 1980 | 34 |
| 1981 | 36 |
| 1982 | 16 |
| 1983 | 11 |
| 1984 | 13 |
| 1985 | 24 |
| 1986 | 16 |
| 1987 | 31 |
| 1988 | 15 |
| 1989 | 13 |
| 1990 | 14 |
| 1991 | 31 |
| 1992 | 9 |
| 1993 | 20 |
| 1994 | 16 |
| 1995 | 17 |
| 1996 | 30 |
| 1997 | 15 |
| 1998 | 12 |
| 1999 | 2 |
| 2000 | 10 |
| 2001 | 12 |
| 2002 | 22 |
| 2003 | 27 |
| 2004 | 16 |
| 2005 | 8 |
| 2006 | 15 |
| 2007 | 21 |
| 2008 | 14 |
| 2009 | 29 |
| 2010 | 12 |
| 2011 | 12 |
| 2012 | 30 |
| 2013 | 12 |
| 2014 | 18 |
| 2015 | 2 |
| 2017 | 9 |
| 2018 | 16 |
| 2019 | 13 |
| 2020 | 11 |
| 2021 | 14 |
| 2022 | 25 |
| 2023 | 32 |
| 2024 | 34 |
| 2025 | 20 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1981-08-04 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
| 1985-01-06 | Record low maximum temperature | Record low maximum temperature 0.0 C (32.0 F) |
| 1985-01-07 | Record low maximum temperature | Record low maximum temperature -2.6 C (27.3 F) |
| 1985-01-08 | Record low minimum temperature | Record low minimum temperature -8.6 C (16.5 F) |
| 1985-01-11 | Record low minimum temperature | Record low minimum temperature -11.0 C (12.2 F) |
Wettest Day of Each Month
Sep: 131.6 mm (5.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 63.4 mm (2.5 in) | 13 January 1978 |
| Feb | 66.0 mm (2.6 in) | 26 February 1984 |
| Mar | 56.9 mm (2.2 in) | 16 March 2011 |
| Apr | 48.0 mm (1.9 in) | 24 April 1999 |
| May | 77.0 mm (3.0 in) | 6 May 2013 |
| Jun | 94.0 mm (3.7 in) | 15 June 2014 |
| Jul | 65.6 mm (2.6 in) | 15 July 2002 |
| Aug | 54.2 mm (2.1 in) | 28 August 2002 |
| Sep | 131.6 mm (5.2 in) | 25 September 1951 |
| Oct | 120.0 mm (4.7 in) | 2 October 1978 |
| Nov | 109.4 mm (4.3 in) | 7 November 1997 |
| Dec | 71.2 mm (2.8 in) | 11 December 2008 |
Period of Record Coverage
1951 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 354 | 97% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 2000 | 180 | 49% | No |
| 2001 | 278 | 76% | No |
| 2002 | 286 | 78% | No |
| 2003 | 302 | 83% | No |
| 2004 | 263 | 72% | No |
| 2005 | 275 | 75% | No |
| 2006 | 289 | 79% | No |
| 2007 | 298 | 82% | No |
| 2008 | 311 | 85% | No |
| 2009 | 297 | 81% | No |
| 2010 | 301 | 82% | No |
| 2011 | 324 | 89% | No |
| 2012 | 310 | 85% | No |
| 2013 | 313 | 86% | No |
| 2014 | 302 | 83% | No |
| 2015 | 133 | 36% | No |
| 2017 | 248 | 68% | No |
| 2018 | 260 | 71% | No |
| 2019 | 284 | 78% | No |
| 2020 | 286 | 78% | No |
| 2021 | 289 | 79% | No |
| 2022 | 304 | 83% | No |
| 2023 | 283 | 78% | No |
| 2024 | 270 | 74% | No |
| 2025 | 189 | 52% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 5 July 2025 | Roma Ciampino, IT | daily high min | 23.0 C (73.4 F) | 0.6 C (1.1 F) | 31 years | 18 of 100 (Routine) |
| 3 July 2025 | Roma Ciampino, IT | daily high max | 37.0 C (98.6 F) | 0.4 C (0.7 F) | 3 years | 8 of 100 (Routine) |
| 2 July 2025 | Roma Ciampino, IT | daily high min | 23.9 C (75.0 F) | 0.3 C (0.5 F) | 31 years | 17 of 100 (Routine) |
| 29 June 2025 | Roma Ciampino, IT | daily high max | 36.8 C (98.2 F) | 0.5 C (0.9 F) | 0 years | 8 of 100 (Routine) |
| 28 June 2025 | Roma Ciampino, IT | daily high max | 37.1 C (98.8 F) | 0.6 C (1.1 F) | 60 years | 26 of 100 (Routine) |
| 28 June 2025 | Roma Ciampino, IT | daily high min | 23.1 C (73.6 F) | 0.3 C (0.5 F) | 20 years | 14 of 100 (Routine) |
| 22 June 2025 | Roma Ciampino, IT | daily rain | 39.1 mm (1.5 in) | 10.1 mm (0.4 in) | 44 years | 31 of 100 (Routine) |
| 16 June 2025 | Roma Ciampino, IT | daily high max | 36.5 C (97.7 F) | 3.1 C (5.6 F) | 22 years | 21 of 100 (Routine) |
| 16 June 2025 | Roma Ciampino, IT | daily high min | 21.4 C (70.5 F) | 0.2 C (0.4 F) | 3 years | 7 of 100 (Routine) |
| 15 June 2025 | Roma Ciampino, IT | daily high max | 36.0 C (96.8 F) | 0.6 C (1.1 F) | 22 years | 14 of 100 (Routine) |
| 15 June 2025 | Roma Ciampino, IT | daily high min | 22.2 C (72.0 F) | 0.2 C (0.4 F) | 22 years | 13 of 100 (Routine) |
| 13 June 2025 | Roma Ciampino, IT | daily high max | 35.6 C (96.1 F) | 2.0 C (3.6 F) | 59 years | 29 of 100 (Routine) |
| 12 June 2025 | Roma Ciampino, IT | daily high max | 34.6 C (94.3 F) | 0.2 C (0.4 F) | 22 years | 13 of 100 (Routine) |
| 8 June 2025 | Roma Ciampino, IT | daily high min | 19.8 C (67.6 F) | 0.4 C (0.7 F) | 40 years | 20 of 100 (Routine) |
| 1 May 2025 | Roma Ciampino, IT | daily high max (Tie) | 27.0 C (80.6 F) | tie | 12 years | 2 of 100 (Routine) |
| 14 April 2025 | Roma Ciampino, IT | daily high min | 15.0 C (59.0 F) | 1.3 C (2.3 F) | 0 years | 11 of 100 (Routine) |
| 14 March 2025 | Roma Ciampino, IT | daily high min | 13.0 C (55.4 F) | 1.2 C (2.2 F) | 74 years | 32 of 100 (Routine) |
| 14 March 2025 | Roma Ciampino, IT | daily high max (Tie) | 20.0 C (68.0 F) | tie | 68 years | 6 of 100 (Routine) |
| 13 March 2025 | Roma Ciampino, IT | daily high min | 11.6 C (52.9 F) | 0.2 C (0.4 F) | 71 years | 28 of 100 (Routine) |
| 12 March 2025 | Roma Ciampino, IT | daily rain | 16.0 mm (0.6 in) | 3.0 mm (0.12 in) | 12 years | 14 of 100 (Routine) |
Climate Trend
49 complete years, 1951 to 2009| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1951 | 15.8 C | +0.46 C |
| 1952 | 16.0 C | +0.62 C |
| 1953 | 15.6 C | +0.26 C |
| 1954 | 15.4 C | +0.01 C |
| 1955 | 16.1 C | +0.77 C |
| 1956 | 14.9 C | -0.41 C |
| 1957 | 16.0 C | +0.64 C |
| 1958 | 16.0 C | +0.66 C |
| 1959 | 16.0 C | +0.67 C |
| 1960 | 15.9 C | +0.60 C |
| 1961 | 15.6 C | +0.25 C |
| 1962 | 14.9 C | -0.47 C |
| 1963 | 15.0 C | -0.35 C |
| 1964 | 15.3 C | -0.04 C |
| 1965 | 14.9 C | -0.43 C |
| 1966 | 15.5 C | +0.16 C |
| 1967 | 15.6 C | +0.24 C |
| 1968 | 15.2 C | -0.18 C |
| 1969 | 15.0 C | -0.35 C |
| 1970 | 15.3 C | -0.04 C |
| 1971 | 14.9 C | -0.45 C |
| 1972 | 15.0 C | -0.32 C |
| 1973 | 15.3 C | -0.06 C |
| 1974 | 15.1 C | -0.29 C |
| 1975 | 15.3 C | -0.06 C |
| 1976 | 15.1 C | -0.28 C |
| 1977 | 15.4 C | +0.09 C |
| 1978 | 14.4 C | -0.93 C |
| 1979 | 14.9 C | -0.42 C |
| 1980 | 14.2 C | -1.13 C |
| 1981 | 14.6 C | -0.73 C |
| 1982 | 15.5 C | +0.19 C |
| 1983 | 14.8 C | -0.52 C |
| 1984 | 14.3 C | -1.06 C |
| 1985 | 15.4 C | +0.03 C |
| 1986 | 15.1 C | -0.27 C |
| 1987 | 15.3 C | -0.02 C |
| 1989 | 15.1 C | -0.20 C |
| 1990 | 15.6 C | +0.26 C |
| 1991 | 14.8 C | -0.59 C |
| 1992 | 15.7 C | +0.35 C |
| 1993 | 15.4 C | +0.04 C |
| 1994 | 16.5 C | +1.13 C |
| 1995 | 15.2 C | -0.19 C |
| 1996 | 15.2 C | -0.14 C |
| 1997 | 15.7 C | +0.38 C |
| 1998 | 15.6 C | +0.21 C |
| 2008 | 16.2 C | +0.83 C |
| 2009 | 16.5 C | +1.11 C |
The fitted trend in annual mean temperature here over 1951 to 2009 is 0.00 C (-0.10 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.01 F (-0.19 to 0.17) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.00 C (-0.10 to 0.09) per decade | -0.01 F (-0.19 to 0.17) per decade | 1951 to 2009 | 49 | Not clearly different from zero |
| Mean daily maximum | -0.10 C (-0.20 to 0.00) per decade | -0.18 F (-0.37 to 0.01) per decade | 1951 to 2009 | 49 | Not clearly different from zero |
| Mean daily minimum | 0.09 C (-0.04 to 0.22) per decade | 0.2 F (-0.1 to 0.4) per decade | 1951 to 2009 | 49 | 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
1951 to 2025| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.6 C (105.1 F) | 1981 | 36.8 C (98.2 F) | 73 |
| Coldest night (TNn) | -11.0 C (12.2 F) | 1985 | -3.3 C (26.1 F) | 74 |
| Wettest day (Rx1day) | 131.6 mm (5.2 in) | 1951 | 49.2 mm (1.9 in) | 71 |
| Wettest five days (Rx5day) | 262.3 mm (10.3 in) | 1978 | 90.2 mm (3.6 in) | 71 |
| Longest dry spell (CDD) | 91 days | 2008 | 35 days | 71 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1951 | 36.2 C (97.2 F) |
| 1952 | 37.7 C (99.9 F) |
| 1953 | 35.8 C (96.4 F) |
| 1954 | 34.6 C (94.3 F) |
| 1955 | 35.8 C (96.4 F) |
| 1956 | 39.0 C (102.2 F) |
| 1957 | 38.3 C (100.9 F) |
| 1958 | 37.4 C (99.3 F) |
| 1959 | 36.0 C (96.8 F) |
| 1960 | 37.5 C (99.5 F) |
| 1961 | 37.3 C (99.1 F) |
| 1962 | 36.4 C (97.5 F) |
| 1963 | 34.5 C (94.1 F) |
| 1964 | 36.1 C (97.0 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 36.8 C (98.2 F) |
| 1967 | 38.2 C (100.8 F) |
| 1968 | 37.0 C (98.6 F) |
| 1969 | 34.4 C (93.9 F) |
| 1970 | 36.0 C (96.8 F) |
| 1971 | 38.0 C (100.4 F) |
| 1972 | 36.8 C (98.2 F) |
| 1973 | 35.0 C (95.0 F) |
| 1974 | 36.6 C (97.9 F) |
| 1975 | 37.0 C (98.6 F) |
| 1976 | 33.4 C (92.1 F) |
| 1977 | 34.2 C (93.6 F) |
| 1978 | 36.4 C (97.5 F) |
| 1979 | 36.8 C (98.2 F) |
| 1980 | 36.4 C (97.5 F) |
| 1981 | 40.6 C (105.1 F) |
| 1982 | 38.4 C (101.1 F) |
| 1983 | 39.4 C (102.9 F) |
| 1984 | 35.2 C (95.4 F) |
| 1985 | 36.8 C (98.2 F) |
| 1986 | 34.0 C (93.2 F) |
| 1987 | 37.4 C (99.3 F) |
| 1988 | 35.8 C (96.4 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 34.8 C (94.6 F) |
| 1991 | 34.8 C (94.6 F) |
| 1992 | 35.2 C (95.4 F) |
| 1993 | 37.0 C (98.6 F) |
| 1994 | 36.6 C (97.9 F) |
| 1995 | 35.6 C (96.1 F) |
| 1996 | 34.0 C (93.2 F) |
| 1997 | 34.2 C (93.6 F) |
| 1998 | 37.8 C (100.0 F) |
| 1999 | n/a |
| 2000 | 38.0 C (100.4 F) |
| 2001 | 35.0 C (95.0 F) |
| 2002 | 34.4 C (93.9 F) |
| 2003 | 37.4 C (99.3 F) |
| 2004 | 34.4 C (93.9 F) |
| 2005 | 38.0 C (100.4 F) |
| 2006 | 37.4 C (99.3 F) |
| 2007 | 40.0 C (104.0 F) |
| 2008 | 36.0 C (96.8 F) |
| 2009 | 37.4 C (99.3 F) |
| 2010 | 38.0 C (100.4 F) |
| 2011 | 40.0 C (104.0 F) |
| 2012 | 39.4 C (102.9 F) |
| 2013 | 37.0 C (98.6 F) |
| 2014 | 34.4 C (93.9 F) |
| 2015 | 32.6 C (90.7 F) |
| 2017 | 38.6 C (101.5 F) |
| 2018 | 35.3 C (95.5 F) |
| 2019 | 37.6 C (99.7 F) |
| 2020 | 37.8 C (100.0 F) |
| 2021 | 38.4 C (101.1 F) |
| 2022 | 39.3 C (102.7 F) |
| 2023 | 38.0 C (100.4 F) |
| 2024 | 38.3 C (100.9 F) |
| 2025 | 38.0 C (100.4 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1951 | -2.0 C (28.4 F) |
| 1952 | -3.7 C (25.3 F) |
| 1953 | -3.9 C (25.0 F) |
| 1954 | -5.0 C (23.0 F) |
| 1955 | -2.1 C (28.2 F) |
| 1956 | -6.9 C (19.6 F) |
| 1957 | -2.8 C (27.0 F) |
| 1958 | -2.3 C (27.9 F) |
| 1959 | -2.2 C (28.0 F) |
| 1960 | -2.8 C (27.0 F) |
| 1961 | -4.3 C (24.3 F) |
| 1962 | -4.8 C (23.4 F) |
| 1963 | -7.4 C (18.7 F) |
| 1964 | -5.6 C (21.9 F) |
| 1965 | -6.0 C (21.2 F) |
| 1966 | -5.2 C (22.6 F) |
| 1967 | -4.6 C (23.7 F) |
| 1968 | -8.4 C (16.9 F) |
| 1969 | -4.4 C (24.1 F) |
| 1970 | -3.6 C (25.5 F) |
| 1971 | -5.6 C (21.9 F) |
| 1972 | -3.0 C (26.6 F) |
| 1973 | -5.2 C (22.6 F) |
| 1974 | -1.4 C (29.5 F) |
| 1975 | -3.2 C (26.2 F) |
| 1976 | -4.4 C (24.1 F) |
| 1977 | -3.0 C (26.6 F) |
| 1978 | -3.8 C (25.2 F) |
| 1979 | -6.2 C (20.8 F) |
| 1980 | -5.0 C (23.0 F) |
| 1981 | -5.8 C (21.6 F) |
| 1982 | -3.2 C (26.2 F) |
| 1983 | -2.8 C (27.0 F) |
| 1984 | -3.0 C (26.6 F) |
| 1985 | -11.0 C (12.2 F) |
| 1986 | -4.4 C (24.1 F) |
| 1987 | -7.0 C (19.4 F) |
| 1988 | -2.6 C (27.3 F) |
| 1989 | -1.8 C (28.8 F) |
| 1990 | -2.4 C (27.7 F) |
| 1991 | -4.0 C (24.8 F) |
| 1992 | -3.0 C (26.6 F) |
| 1993 | -6.8 C (19.8 F) |
| 1994 | -1.6 C (29.1 F) |
| 1995 | -3.4 C (25.9 F) |
| 1996 | -4.8 C (23.4 F) |
| 1997 | 0.0 C (32.0 F) |
| 1998 | -3.6 C (25.5 F) |
| 1999 | -3.0 C (26.6 F) |
| 2000 | -1.2 C (29.8 F) |
| 2001 | -2.6 C (27.3 F) |
| 2002 | -4.0 C (24.8 F) |
| 2003 | -3.2 C (26.2 F) |
| 2004 | -4.0 C (24.8 F) |
| 2005 | -2.0 C (28.4 F) |
| 2006 | -3.0 C (26.6 F) |
| 2007 | -4.4 C (24.1 F) |
| 2008 | -4.0 C (24.8 F) |
| 2009 | -4.4 C (24.1 F) |
| 2010 | -3.2 C (26.2 F) |
| 2011 | -3.0 C (26.6 F) |
| 2012 | -4.0 C (24.8 F) |
| 2013 | -2.0 C (28.4 F) |
| 2014 | -1.4 C (29.5 F) |
| 2015 | -1.2 C (29.8 F) |
| 2017 | -2.7 C (27.1 F) |
| 2018 | -6.2 C (20.8 F) |
| 2019 | -3.6 C (25.5 F) |
| 2020 | -1.3 C (29.7 F) |
| 2021 | -2.8 C (27.0 F) |
| 2022 | -1.4 C (29.5 F) |
| 2023 | -1.2 C (29.8 F) |
| 2024 | -0.4 C (31.3 F) |
| 2025 | -0.2 C (31.6 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1951 | 131.6 mm (5.2 in) |
| 1952 | 32.6 mm (1.3 in) |
| 1953 | 36.8 mm (1.4 in) |
| 1954 | 41.0 mm (1.6 in) |
| 1955 | 47.4 mm (1.9 in) |
| 1956 | 51.4 mm (2.0 in) |
| 1957 | 34.6 mm (1.4 in) |
| 1958 | 48.4 mm (1.9 in) |
| 1959 | 23.6 mm (0.9 in) |
| 1960 | 45.8 mm (1.8 in) |
| 1961 | 70.6 mm (2.8 in) |
| 1962 | 57.6 mm (2.3 in) |
| 1963 | 55.6 mm (2.2 in) |
| 1964 | 54.4 mm (2.1 in) |
| 1965 | 52.0 mm (2.0 in) |
| 1966 | 42.2 mm (1.7 in) |
| 1967 | 49.4 mm (1.9 in) |
| 1968 | 38.3 mm (1.5 in) |
| 1969 | 33.0 mm (1.3 in) |
| 1970 | 37.2 mm (1.5 in) |
| 1971 | 34.4 mm (1.4 in) |
| 1972 | 33.8 mm (1.3 in) |
| 1973 | 52.0 mm (2.0 in) |
| 1974 | 40.8 mm (1.6 in) |
| 1975 | 64.8 mm (2.6 in) |
| 1976 | 57.8 mm (2.3 in) |
| 1977 | 47.6 mm (1.9 in) |
| 1978 | 120.0 mm (4.7 in) |
| 1979 | 50.0 mm (2.0 in) |
| 1980 | 44.0 mm (1.7 in) |
| 1981 | 57.2 mm (2.3 in) |
| 1982 | 59.0 mm (2.3 in) |
| 1983 | 53.0 mm (2.1 in) |
| 1984 | 66.0 mm (2.6 in) |
| 1985 | 45.2 mm (1.8 in) |
| 1986 | 42.8 mm (1.7 in) |
| 1987 | 46.2 mm (1.8 in) |
| 1988 | 36.0 mm (1.4 in) |
| 1989 | 46.4 mm (1.8 in) |
| 1990 | 66.6 mm (2.6 in) |
| 1991 | 47.4 mm (1.9 in) |
| 1992 | 53.4 mm (2.1 in) |
| 1993 | 48.0 mm (1.9 in) |
| 1994 | 37.6 mm (1.5 in) |
| 1995 | 49.2 mm (1.9 in) |
| 1996 | 65.0 mm (2.6 in) |
| 1997 | 109.4 mm (4.3 in) |
| 1998 | 65.0 mm (2.6 in) |
| 1999 | 55.0 mm (2.2 in) |
| 2000 | 48.4 mm (1.9 in) |
| 2001 | 53.0 mm (2.1 in) |
| 2002 | 65.6 mm (2.6 in) |
| 2003 | 65.2 mm (2.6 in) |
| 2004 | 61.2 mm (2.4 in) |
| 2005 | 64.0 mm (2.5 in) |
| 2006 | 40.6 mm (1.6 in) |
| 2007 | 31.6 mm (1.2 in) |
| 2008 | 71.2 mm (2.8 in) |
| 2009 | 16.0 mm (0.6 in) |
| 2010 | 44.5 mm (1.8 in) |
| 2011 | 60.5 mm (2.4 in) |
| 2012 | 42.9 mm (1.7 in) |
| 2013 | 77.0 mm (3.0 in) |
| 2014 | 95.0 mm (3.7 in) |
| 2015 | 41.9 mm (1.6 in) |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | 39.9 mm (1.6 in) |
| 2021 | 54.1 mm (2.1 in) |
| 2022 | 54.1 mm (2.1 in) |
| 2023 | 36.1 mm (1.4 in) |
| 2024 | 58.9 mm (2.3 in) |
| 2025 | 39.1 mm (1.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1951 | 156.8 mm (6.2 in) |
| 1952 | 35.8 mm (1.4 in) |
| 1953 | 43.6 mm (1.7 in) |
| 1954 | 55.3 mm (2.2 in) |
| 1955 | 83.6 mm (3.3 in) |
| 1956 | 142.5 mm (5.6 in) |
| 1957 | 79.3 mm (3.1 in) |
| 1958 | 124.4 mm (4.9 in) |
| 1959 | 69.6 mm (2.7 in) |
| 1960 | 72.4 mm (2.9 in) |
| 1961 | 79.7 mm (3.1 in) |
| 1962 | 86.8 mm (3.4 in) |
| 1963 | 73.8 mm (2.9 in) |
| 1964 | 117.4 mm (4.6 in) |
| 1965 | 118.0 mm (4.6 in) |
| 1966 | 91.2 mm (3.6 in) |
| 1967 | 75.2 mm (3.0 in) |
| 1968 | 49.7 mm (2.0 in) |
| 1969 | 73.2 mm (2.9 in) |
| 1970 | 90.9 mm (3.6 in) |
| 1971 | 86.3 mm (3.4 in) |
| 1972 | 70.0 mm (2.8 in) |
| 1973 | 96.1 mm (3.8 in) |
| 1974 | 103.4 mm (4.1 in) |
| 1975 | 136.8 mm (5.4 in) |
| 1976 | 100.0 mm (3.9 in) |
| 1977 | 105.3 mm (4.1 in) |
| 1978 | 262.3 mm (10.3 in) |
| 1979 | 132.0 mm (5.2 in) |
| 1980 | 85.4 mm (3.4 in) |
| 1981 | 90.2 mm (3.6 in) |
| 1982 | 122.6 mm (4.8 in) |
| 1983 | 93.6 mm (3.7 in) |
| 1984 | 130.2 mm (5.1 in) |
| 1985 | 157.4 mm (6.2 in) |
| 1986 | 99.2 mm (3.9 in) |
| 1987 | 90.6 mm (3.6 in) |
| 1988 | 55.7 mm (2.2 in) |
| 1989 | 87.5 mm (3.4 in) |
| 1990 | 151.6 mm (6.0 in) |
| 1991 | 106.0 mm (4.2 in) |
| 1992 | 93.6 mm (3.7 in) |
| 1993 | 65.0 mm (2.6 in) |
| 1994 | 64.0 mm (2.5 in) |
| 1995 | 66.6 mm (2.6 in) |
| 1996 | 82.6 mm (3.3 in) |
| 1997 | 139.4 mm (5.5 in) |
| 1998 | 121.6 mm (4.8 in) |
| 1999 | 87.0 mm (3.4 in) |
| 2000 | 83.8 mm (3.3 in) |
| 2001 | 71.4 mm (2.8 in) |
| 2002 | 98.0 mm (3.9 in) |
| 2003 | 115.6 mm (4.6 in) |
| 2004 | 127.6 mm (5.0 in) |
| 2005 | 109.6 mm (4.3 in) |
| 2006 | 73.8 mm (2.9 in) |
| 2007 | 66.6 mm (2.6 in) |
| 2008 | 133.6 mm (5.3 in) |
| 2009 | 36.6 mm (1.4 in) |
| 2010 | 50.9 mm (2.0 in) |
| 2011 | 73.9 mm (2.9 in) |
| 2012 | 94.9 mm (3.7 in) |
| 2013 | 112.3 mm (4.4 in) |
| 2014 | 204.0 mm (8.0 in) |
| 2015 | 57.9 mm (2.3 in) |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | 124.5 mm (4.9 in) |
| 2021 | 109.5 mm (4.3 in) |
| 2022 | 72.6 mm (2.9 in) |
| 2023 | 80.1 mm (3.2 in) |
| 2024 | 63.0 mm (2.5 in) |
| 2025 | 43.7 mm (1.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1951 | 78 days |
| 1952 | 48 days |
| 1953 | 52 days |
| 1954 | 41 days |
| 1955 | 35 days |
| 1956 | 72 days |
| 1957 | 25 days |
| 1958 | 33 days |
| 1959 | 33 days |
| 1960 | 48 days |
| 1961 | 49 days |
| 1962 | 77 days |
| 1963 | 26 days |
| 1964 | 31 days |
| 1965 | 56 days |
| 1966 | 32 days |
| 1967 | 36 days |
| 1968 | 35 days |
| 1969 | 33 days |
| 1970 | 36 days |
| 1971 | 41 days |
| 1972 | 27 days |
| 1973 | 41 days |
| 1974 | 49 days |
| 1975 | 56 days |
| 1976 | 19 days |
| 1977 | 40 days |
| 1978 | 44 days |
| 1979 | 30 days |
| 1980 | 66 days |
| 1981 | 29 days |
| 1982 | 31 days |
| 1983 | 27 days |
| 1984 | 57 days |
| 1985 | 45 days |
| 1986 | 23 days |
| 1987 | 33 days |
| 1988 | 47 days |
| 1989 | 36 days |
| 1990 | 26 days |
| 1991 | 52 days |
| 1992 | 49 days |
| 1993 | 85 days |
| 1994 | 40 days |
| 1995 | 34 days |
| 1996 | 24 days |
| 1997 | 28 days |
| 1998 | 51 days |
| 1999 | 30 days |
| 2000 | 29 days |
| 2001 | 22 days |
| 2002 | 35 days |
| 2003 | 86 days |
| 2004 | 40 days |
| 2005 | 22 days |
| 2006 | 31 days |
| 2007 | 67 days |
| 2008 | 91 days |
| 2009 | 8 days |
| 2010 | 12 days |
| 2011 | 52 days |
| 2012 | 36 days |
| 2013 | 22 days |
| 2014 | 21 days |
| 2015 | 21 days |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | 31 days |
| 2021 | 34 days |
| 2022 | 32 days |
| 2023 | 28 days |
| 2024 | 22 days |
| 2025 | 23 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
41 years with a frostAcross 41 years with a frost, the median last spring frost at Roma Ciampino falls on 7 March and the median first autumn frost on 5 December, which leaves a median of 268 days between them.
Fitted over all years, the growing season changes by +2.7 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1965 to 2009) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 7 March | n/a | 7 March | n/a | -1.4 days per decade |
| First autumn frost | 5 December | n/a | 5 December | n/a | +1.3 days per decade |
| Growing days | 268 days | n/a | 270 days | n/a | +2.7 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
62 years, 1951 to 2023A day with at least 49.4 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 112.1 mm (4.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 49.4 mm (1.9 in) | |
| 5 years | 64.1 mm (2.5 in) | |
| 10 years | 74.7 mm (2.9 in) | |
| 25 years | 88.9 mm (3.5 in) | |
| 50 years | 100.2 mm (3.9 in) | |
| 100 years | 112.1 mm (4.4 in) | Longer than the 62 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, 62 years of values from 1951 to 2023.
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: 131.6 mm (5.2 in) in 1951; 109.4 mm (4.3 in) in 1997; 95.0 mm (3.7 in) in 2014.
Download the Data
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).