Geneve Observatoire Weather Records (SZ000008390)
Record envelope, standing records and threshold days for Geneve Observatoire (SZ000008390), Switzerland, with 126 years of record.
Key Facts for Geneve Observatoire
- Geneve Observatoire (SZ000008390) is a weather station in Switzerland at 46.20 latitude and 6.15 longitude, 405 m (1,329 ft) above sea level.
- The station reports from 1901 to 2026, 126 years of record.
- 1,464 records set at Geneve Observatoire still stand.
- Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
- Geneve Observatoire set a daily record precipitation of 29.7 mm (1.2 in) on 2 June 2026.
About the Station
- Location: Switzerland, 46.20 latitude, 6.15 longitude.
- Elevation: 405 m (1,329 ft).
- Period of record: 1901 to 2026, 126 years.
- Eligible elements: tmax, tmin, prcp, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 17.3 C (63.1 F) | -14.9 C (5.2 F) | n/a | n/a |
| Feb | 20.6 C (69.1 F) | -18.3 C (-0.9 F) | n/a | n/a |
| Mar | 22.9 C (73.2 F) | -11.4 C (11.5 F) | n/a | n/a |
| Apr | 27.5 C (81.5 F) | -4.5 C (23.9 F) | n/a | n/a |
| May | 32.0 C (89.6 F) | -1.7 C (28.9 F) | n/a | n/a |
| Jun | 35.7 C (96.3 F) | 3.8 C (38.8 F) | n/a | n/a |
| Jul | 38.3 C (100.9 F) | 5.3 C (41.5 F) | n/a | n/a |
| Aug | 36.5 C (97.7 F) | 4.8 C (40.6 F) | n/a | n/a |
| Sep | 34.8 C (94.6 F) | 1.2 C (34.2 F) | n/a | n/a |
| Oct | 26.0 C (78.8 F) | -3.7 C (25.3 F) | n/a | n/a |
| Nov | 23.2 C (73.8 F) | -8.5 C (16.7 F) | n/a | n/a |
| Dec | 20.8 C (69.4 F) | -16.0 C (3.2 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1901 | 32 |
| 1902 | 23 |
| 1903 | 19 |
| 1904 | 16 |
| 1905 | 31 |
| 1906 | 31 |
| 1907 | 6 |
| 1908 | 20 |
| 1909 | 44 |
| 1910 | 15 |
| 1911 | 24 |
| 1912 | 36 |
| 1913 | 18 |
| 1914 | 26 |
| 1915 | 34 |
| 1916 | 17 |
| 1917 | 19 |
| 1918 | 19 |
| 1919 | 51 |
| 1920 | 18 |
| 1921 | 25 |
| 1922 | 26 |
| 1923 | 23 |
| 1924 | 21 |
| 1925 | 37 |
| 1926 | 21 |
| 1927 | 13 |
| 1928 | 27 |
| 1929 | 27 |
| 1930 | 10 |
| 1931 | 33 |
| 1932 | 8 |
| 1933 | 20 |
| 1934 | 12 |
| 1935 | 14 |
| 1936 | 32 |
| 1937 | 6 |
| 1938 | 16 |
| 1939 | 31 |
| 1940 | 23 |
| 1941 | 21 |
| 1942 | 20 |
| 1943 | 7 |
| 1944 | 18 |
| 1945 | 26 |
| 1946 | 13 |
| 1947 | 41 |
| 1948 | 25 |
| 1949 | 35 |
| 1950 | 17 |
| 1951 | 7 |
| 1952 | 29 |
| 1953 | 16 |
| 1954 | 11 |
| 1955 | 18 |
| 1956 | 22 |
| 1957 | 25 |
| 1958 | 28 |
| 1959 | 11 |
| 1960 | 11 |
| 1961 | 35 |
| 1962 | 32 |
| 1963 | 21 |
| 1964 | 9 |
| 1965 | 15 |
| 1966 | 27 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1940-11-14 | Record daily precipitation | Record daily precipitation 71.5 mm (2.8 in) |
| 1943-09-22 | Record daily precipitation | Record daily precipitation 79.8 mm (3.1 in) |
| 1944-08-24 | Record high minimum temperature | Record high minimum temperature 22.1 C (71.8 F) |
| 1952-07-05 | Record high minimum temperature | Record high minimum temperature 22.6 C (72.7 F) |
| 1956-02-10 | Record low maximum temperature | Record low maximum temperature -13.8 C (7.2 F) |
| 1956-02-11 | Record low maximum temperature | Record low maximum temperature -14.6 C (5.7 F) |
Wettest Day of Each Month
Sep: 79.8 mm (3.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 60.0 mm (2.4 in) | 2 January 1949 |
| Feb | 42.0 mm (1.7 in) | 14 February 1925 |
| Mar | 49.3 mm (1.9 in) | 7 March 1920 |
| Apr | 44.9 mm (1.8 in) | 16 April 1902 |
| May | 44.5 mm (1.8 in) | 6 May 1932 |
| Jun | 57.6 mm (2.3 in) | 12 June 1938 |
| Jul | 63.0 mm (2.5 in) | 22 July 1914 |
| Aug | 71.2 mm (2.8 in) | 15 August 1928 |
| Sep | 79.8 mm (3.1 in) | 22 September 1943 |
| Oct | 61.0 mm (2.4 in) | 2 October 1912 |
| Nov | 76.0 mm (3.0 in) | 11 November 1950 |
| Dec | 53.8 mm (2.1 in) | 9 December 1954 |
Period of Record Coverage
1901 to 1966| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1901 | 365 | 100% | Yes |
| 1902 | 365 | 100% | Yes |
| 1903 | 365 | 100% | Yes |
| 1904 | 366 | 100% | Yes |
| 1905 | 365 | 100% | Yes |
| 1906 | 365 | 100% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 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 | 364 | 100% | Yes |
| 1963 | 362 | 99% | Yes |
| 1964 | 364 | 99% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 334 | 92% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 2 June 2026 | Geneve Observatoire, CH | daily rain | 29.7 mm (1.2 in) | 17.5 mm (0.7 in) | 124 years | 61 of 100 (Major) |
| 4 November 1966 | Geneve Observatoire, CH | daily low max | 4.2 C (39.6 F) | 0.1 C (0.2 F) | 24 years | 13 of 100 (Routine) |
| 26 October 1966 | Geneve Observatoire, CH | daily rain | 36.7 mm (1.4 in) | 19.1 mm (0.8 in) | 33 years | 39 of 100 (Notable) |
| 23 October 1966 | Geneve Observatoire, CH | daily high max | 21.0 C (69.8 F) | 0.6 C (1.1 F) | 23 years | 13 of 100 (Routine) |
| 15 October 1966 | Geneve Observatoire, CH | daily high min | 13.0 C (55.4 F) | 0.2 C (0.4 F) | 27 years | 14 of 100 (Routine) |
| 11 October 1966 | Geneve Observatoire, CH | daily high min | 14.5 C (58.1 F) | 0.5 C (0.9 F) | 19 years | 12 of 100 (Routine) |
| 17 August 1966 | Geneve Observatoire, CH | daily low max | 14.6 C (58.3 F) | 3.6 C (6.5 F) | 3 years | 15 of 100 (Routine) |
| 16 August 1966 | Geneve Observatoire, CH | daily low max | 16.1 C (61.0 F) | 0.5 C (0.9 F) | 41 years | 19 of 100 (Routine) |
| 14 August 1966 | Geneve Observatoire, CH | daily high min | 19.5 C (67.1 F) | 0.5 C (0.9 F) | 12 years | 10 of 100 (Routine) |
| 19 July 1966 | Geneve Observatoire, CH | daily low max | 16.5 C (61.7 F) | 0.1 C (0.2 F) | 57 years | 23 of 100 (Routine) |
| 18 July 1966 | Geneve Observatoire, CH | daily low max | 14.5 C (58.1 F) | 5.1 C (9.2 F) | 17 years | 23 of 100 (Routine) |
| 17 July 1966 | Geneve Observatoire, CH | daily low max | 17.0 C (62.6 F) | 1.5 C (2.7 F) | 4 years | 10 of 100 (Routine) |
| 17 June 1966 | Geneve Observatoire, CH | daily high min | 18.6 C (65.5 F) | 0.6 C (1.1 F) | 39 years | 19 of 100 (Routine) |
| 16 June 1966 | Geneve Observatoire, CH | daily high max | 31.1 C (88.0 F) | 1.1 C (2.0 F) | 57 years | 25 of 100 (Routine) |
| 11 June 1966 | Geneve Observatoire, CH | daily high min | 18.0 C (64.4 F) | 0.8 C (1.4 F) | 16 years | 12 of 100 (Routine) |
| 8 June 1966 | Geneve Observatoire, CH | daily high min | 16.4 C (61.5 F) | 0.4 C (0.7 F) | 40 years | 19 of 100 (Routine) |
| 5 May 1966 | Geneve Observatoire, CH | daily rain | 22.5 mm (0.9 in) | 4.1 mm (0.16 in) | 57 years | 20 of 100 (Routine) |
| 4 May 1966 | Geneve Observatoire, CH | daily high min | 14.0 C (57.2 F) | 1.7 C (3.1 F) | 1 year | 11 of 100 (Routine) |
| 20 April 1966 | Geneve Observatoire, CH | daily rain | 21.5 mm (0.8 in) | 5.3 mm (0.21 in) | 48 years | 20 of 100 (Routine) |
| 14 April 1966 | Geneve Observatoire, CH | daily high min | 10.8 C (51.4 F) | 0.5 C (0.9 F) | 27 years | 15 of 100 (Routine) |
Climate Trend
65 complete years, 1901 to 1965| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1901 | 9.3 C | -0.92 C |
| 1902 | 9.7 C | -0.49 C |
| 1903 | 9.8 C | -0.40 C |
| 1904 | 10.5 C | +0.30 C |
| 1905 | 9.9 C | -0.35 C |
| 1906 | 10.1 C | -0.11 C |
| 1907 | 9.9 C | -0.30 C |
| 1908 | 9.5 C | -0.74 C |
| 1909 | 9.1 C | -1.12 C |
| 1910 | 9.9 C | -0.34 C |
| 1911 | 10.7 C | +0.48 C |
| 1912 | 9.6 C | -0.58 C |
| 1913 | 10.0 C | -0.18 C |
| 1914 | 9.5 C | -0.71 C |
| 1915 | 9.6 C | -0.62 C |
| 1916 | 9.8 C | -0.46 C |
| 1917 | 8.9 C | -1.30 C |
| 1918 | 9.9 C | -0.33 C |
| 1919 | 9.5 C | -0.71 C |
| 1920 | 10.5 C | +0.32 C |
| 1921 | 10.7 C | +0.51 C |
| 1922 | 9.6 C | -0.64 C |
| 1923 | 10.4 C | +0.14 C |
| 1924 | 9.7 C | -0.48 C |
| 1925 | 10.0 C | -0.18 C |
| 1926 | 10.5 C | +0.25 C |
| 1927 | 10.3 C | +0.13 C |
| 1928 | 11.0 C | +0.78 C |
| 1929 | 9.9 C | -0.34 C |
| 1930 | 10.8 C | +0.60 C |
| 1931 | 9.7 C | -0.48 C |
| 1932 | 9.9 C | -0.36 C |
| 1933 | 9.7 C | -0.56 C |
| 1934 | 10.7 C | +0.50 C |
| 1935 | 10.3 C | +0.11 C |
| 1936 | 10.5 C | +0.28 C |
| 1937 | 10.7 C | +0.47 C |
| 1938 | 10.2 C | -0.06 C |
| 1939 | 10.0 C | -0.22 C |
| 1940 | 9.3 C | -0.87 C |
| 1941 | 9.5 C | -0.70 C |
| 1942 | 10.1 C | -0.10 C |
| 1943 | 11.0 C | +0.76 C |
| 1944 | 10.0 C | -0.17 C |
| 1945 | 10.8 C | +0.62 C |
| 1946 | 10.7 C | +0.47 C |
| 1947 | 11.5 C | +1.25 C |
| 1948 | 10.9 C | +0.64 C |
| 1949 | 11.3 C | +1.09 C |
| 1950 | 11.2 C | +0.94 C |
| 1951 | 10.7 C | +0.52 C |
| 1952 | 10.8 C | +0.63 C |
| 1953 | 10.6 C | +0.39 C |
| 1954 | 10.3 C | +0.10 C |
| 1955 | 10.6 C | +0.39 C |
| 1956 | 9.4 C | -0.83 C |
| 1957 | 10.5 C | +0.27 C |
| 1958 | 10.6 C | +0.37 C |
| 1959 | 11.2 C | +0.97 C |
| 1960 | 10.8 C | +0.57 C |
| 1961 | 11.6 C | +1.38 C |
| 1962 | 10.2 C | 0.00 C |
| 1963 | 9.6 C | -0.61 C |
| 1964 | 10.7 C | +0.47 C |
| 1965 | 10.0 C | -0.19 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1901 to 1965. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 65 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1901 to 1965 | 65 | Rise |
| Mean daily maximum | 0.04 C (-0.05 to 0.13) per decade | 0.1 F (-0.1 to 0.2) per decade | 1901 to 1965 | 65 | Not clearly different from zero |
| Mean daily minimum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.4 to 0.6) per decade | 1901 to 1965 | 65 | Rise |
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
1901 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.3 C (100.9 F) | 1921 | 32.7 C (90.8 F) | 66 |
| Coldest night (TNn) | -18.3 C (-0.9 F) | 1929 | -9.8 C (14.4 F) | 66 |
| Wettest day (Rx1day) | 79.8 mm (3.1 in) | 1943 | 47.1 mm (1.9 in) | 68 |
| Wettest five days (Rx5day) | 146.8 mm (5.8 in) | 1924 | 80.3 mm (3.2 in) | 68 |
| Longest dry spell (CDD) | 47 days | 1953 | 23 days | 68 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1901 | 31.2 C (88.2 F) |
| 1902 | 33.9 C (93.0 F) |
| 1903 | 31.9 C (89.4 F) |
| 1904 | 35.3 C (95.5 F) |
| 1905 | 35.2 C (95.4 F) |
| 1906 | 35.3 C (95.5 F) |
| 1907 | 33.7 C (92.7 F) |
| 1908 | 32.2 C (90.0 F) |
| 1909 | 30.5 C (86.9 F) |
| 1910 | 32.2 C (90.0 F) |
| 1911 | 36.1 C (97.0 F) |
| 1912 | 31.3 C (88.3 F) |
| 1913 | 30.2 C (86.4 F) |
| 1914 | 30.2 C (86.4 F) |
| 1915 | 29.4 C (84.9 F) |
| 1916 | 30.0 C (86.0 F) |
| 1917 | 32.3 C (90.1 F) |
| 1918 | 33.1 C (91.6 F) |
| 1919 | 33.8 C (92.8 F) |
| 1920 | 32.7 C (90.9 F) |
| 1921 | 38.3 C (100.9 F) |
| 1922 | 32.4 C (90.3 F) |
| 1923 | 35.0 C (95.0 F) |
| 1924 | 33.2 C (91.8 F) |
| 1925 | 33.0 C (91.4 F) |
| 1926 | 31.4 C (88.5 F) |
| 1927 | 30.0 C (86.0 F) |
| 1928 | 35.6 C (96.1 F) |
| 1929 | 33.0 C (91.4 F) |
| 1930 | 30.1 C (86.2 F) |
| 1931 | 34.4 C (93.9 F) |
| 1932 | 31.2 C (88.2 F) |
| 1933 | 33.8 C (92.8 F) |
| 1934 | 33.7 C (92.7 F) |
| 1935 | 33.8 C (92.8 F) |
| 1936 | 30.4 C (86.7 F) |
| 1937 | 31.3 C (88.3 F) |
| 1938 | 32.3 C (90.1 F) |
| 1939 | 30.1 C (86.2 F) |
| 1940 | 29.9 C (85.8 F) |
| 1941 | 32.6 C (90.7 F) |
| 1942 | 32.4 C (90.3 F) |
| 1943 | 35.0 C (95.0 F) |
| 1944 | 34.3 C (93.7 F) |
| 1945 | 35.6 C (96.1 F) |
| 1946 | 35.5 C (95.9 F) |
| 1947 | 36.4 C (97.5 F) |
| 1948 | 30.4 C (86.7 F) |
| 1949 | 35.5 C (95.9 F) |
| 1950 | 35.7 C (96.3 F) |
| 1951 | 31.5 C (88.7 F) |
| 1952 | 35.8 C (96.4 F) |
| 1953 | 30.8 C (87.4 F) |
| 1954 | 31.8 C (89.2 F) |
| 1955 | 33.7 C (92.7 F) |
| 1956 | 30.0 C (86.0 F) |
| 1957 | 33.0 C (91.4 F) |
| 1958 | 33.8 C (92.8 F) |
| 1959 | 31.9 C (89.4 F) |
| 1960 | 31.4 C (88.5 F) |
| 1961 | 31.6 C (88.9 F) |
| 1962 | 34.0 C (93.2 F) |
| 1963 | 31.8 C (89.2 F) |
| 1964 | 33.6 C (92.5 F) |
| 1965 | 33.0 C (91.4 F) |
| 1966 | 32.5 C (90.5 F) |
| 2025 | n/a |
| 2026 | n/a |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1901 | -14.0 C (6.8 F) |
| 1902 | -7.7 C (18.1 F) |
| 1903 | -6.9 C (19.6 F) |
| 1904 | -8.1 C (17.4 F) |
| 1905 | -14.5 C (5.9 F) |
| 1906 | -16.0 C (3.2 F) |
| 1907 | -14.9 C (5.2 F) |
| 1908 | -8.2 C (17.2 F) |
| 1909 | -11.6 C (11.1 F) |
| 1910 | -6.8 C (19.8 F) |
| 1911 | -8.5 C (16.7 F) |
| 1912 | -8.5 C (16.7 F) |
| 1913 | -8.0 C (17.6 F) |
| 1914 | -9.8 C (14.4 F) |
| 1915 | -11.3 C (11.7 F) |
| 1916 | -7.2 C (19.0 F) |
| 1917 | -14.2 C (6.4 F) |
| 1918 | -14.0 C (6.8 F) |
| 1919 | -11.5 C (11.3 F) |
| 1920 | -9.2 C (15.4 F) |
| 1921 | -7.8 C (18.0 F) |
| 1922 | -9.2 C (15.4 F) |
| 1923 | -8.0 C (17.6 F) |
| 1924 | -9.8 C (14.4 F) |
| 1925 | -12.0 C (10.4 F) |
| 1926 | -12.0 C (10.4 F) |
| 1927 | -11.0 C (12.2 F) |
| 1928 | -6.7 C (19.9 F) |
| 1929 | -18.3 C (-0.9 F) |
| 1930 | -5.6 C (21.9 F) |
| 1931 | -9.8 C (14.4 F) |
| 1932 | -12.7 C (9.1 F) |
| 1933 | -10.0 C (14.0 F) |
| 1934 | -8.0 C (17.6 F) |
| 1935 | -9.0 C (15.8 F) |
| 1936 | -7.3 C (18.9 F) |
| 1937 | -6.5 C (20.3 F) |
| 1938 | -13.3 C (8.1 F) |
| 1939 | -12.0 C (10.4 F) |
| 1940 | -12.5 C (9.5 F) |
| 1941 | -11.6 C (11.1 F) |
| 1942 | -11.3 C (11.7 F) |
| 1943 | -6.0 C (21.2 F) |
| 1944 | -8.8 C (16.2 F) |
| 1945 | -11.2 C (11.8 F) |
| 1946 | -9.7 C (14.5 F) |
| 1947 | -10.0 C (14.0 F) |
| 1948 | -10.8 C (12.6 F) |
| 1949 | -10.3 C (13.5 F) |
| 1950 | -8.7 C (16.3 F) |
| 1951 | -6.0 C (21.2 F) |
| 1952 | -10.5 C (13.1 F) |
| 1953 | -8.0 C (17.6 F) |
| 1954 | -10.8 C (12.6 F) |
| 1955 | -7.0 C (19.4 F) |
| 1956 | -18.3 C (-0.9 F) |
| 1957 | -7.7 C (18.1 F) |
| 1958 | -7.4 C (18.7 F) |
| 1959 | -6.6 C (20.1 F) |
| 1960 | -10.5 C (13.1 F) |
| 1961 | -5.6 C (21.9 F) |
| 1962 | -11.0 C (12.2 F) |
| 1963 | -13.7 C (7.3 F) |
| 1964 | -10.0 C (14.0 F) |
| 1965 | -9.0 C (15.8 F) |
| 1966 | -10.2 C (13.6 F) |
| 2025 | n/a |
| 2026 | n/a |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1901 | 37.3 mm (1.5 in) |
| 1902 | 44.9 mm (1.8 in) |
| 1903 | 45.5 mm (1.8 in) |
| 1904 | 51.9 mm (2.0 in) |
| 1905 | 41.4 mm (1.6 in) |
| 1906 | 28.2 mm (1.1 in) |
| 1907 | 37.8 mm (1.5 in) |
| 1908 | 58.8 mm (2.3 in) |
| 1909 | 32.3 mm (1.3 in) |
| 1910 | 46.2 mm (1.8 in) |
| 1911 | 67.0 mm (2.6 in) |
| 1912 | 61.0 mm (2.4 in) |
| 1913 | 56.7 mm (2.2 in) |
| 1914 | 63.0 mm (2.5 in) |
| 1915 | 41.8 mm (1.6 in) |
| 1916 | 41.5 mm (1.6 in) |
| 1917 | 65.9 mm (2.6 in) |
| 1918 | 57.4 mm (2.3 in) |
| 1919 | 45.8 mm (1.8 in) |
| 1920 | 49.3 mm (1.9 in) |
| 1921 | 38.8 mm (1.5 in) |
| 1922 | 36.2 mm (1.4 in) |
| 1923 | 49.0 mm (1.9 in) |
| 1924 | 63.0 mm (2.5 in) |
| 1925 | 42.0 mm (1.7 in) |
| 1926 | 42.5 mm (1.7 in) |
| 1927 | 67.3 mm (2.6 in) |
| 1928 | 71.2 mm (2.8 in) |
| 1929 | 42.3 mm (1.7 in) |
| 1930 | 48.8 mm (1.9 in) |
| 1931 | 52.4 mm (2.1 in) |
| 1932 | 44.5 mm (1.8 in) |
| 1933 | 45.0 mm (1.8 in) |
| 1934 | 34.8 mm (1.4 in) |
| 1935 | 47.5 mm (1.9 in) |
| 1936 | 30.9 mm (1.2 in) |
| 1937 | 60.6 mm (2.4 in) |
| 1938 | 57.6 mm (2.3 in) |
| 1939 | 42.1 mm (1.7 in) |
| 1940 | 71.5 mm (2.8 in) |
| 1941 | 30.6 mm (1.2 in) |
| 1942 | 58.8 mm (2.3 in) |
| 1943 | 79.8 mm (3.1 in) |
| 1944 | 38.3 mm (1.5 in) |
| 1945 | 63.0 mm (2.5 in) |
| 1946 | 71.0 mm (2.8 in) |
| 1947 | 50.1 mm (2.0 in) |
| 1948 | 45.0 mm (1.8 in) |
| 1949 | 60.0 mm (2.4 in) |
| 1950 | 76.0 mm (3.0 in) |
| 1951 | 40.1 mm (1.6 in) |
| 1952 | 38.0 mm (1.5 in) |
| 1953 | 49.0 mm (1.9 in) |
| 1954 | 61.7 mm (2.4 in) |
| 1955 | 54.1 mm (2.1 in) |
| 1956 | 51.9 mm (2.0 in) |
| 1957 | 29.2 mm (1.1 in) |
| 1958 | 47.5 mm (1.9 in) |
| 1959 | 47.1 mm (1.9 in) |
| 1960 | 58.3 mm (2.3 in) |
| 1961 | 27.0 mm (1.1 in) |
| 1962 | 29.6 mm (1.2 in) |
| 1963 | 53.3 mm (2.1 in) |
| 1964 | 47.0 mm (1.9 in) |
| 1965 | 38.8 mm (1.5 in) |
| 1966 | 36.7 mm (1.4 in) |
| 2025 | 23.6 mm (0.9 in) |
| 2026 | 29.7 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1901 | 74.2 mm (2.9 in) |
| 1902 | 73.3 mm (2.9 in) |
| 1903 | 71.0 mm (2.8 in) |
| 1904 | 78.8 mm (3.1 in) |
| 1905 | 71.9 mm (2.8 in) |
| 1906 | 49.4 mm (1.9 in) |
| 1907 | 63.9 mm (2.5 in) |
| 1908 | 81.7 mm (3.2 in) |
| 1909 | 68.8 mm (2.7 in) |
| 1910 | 109.1 mm (4.3 in) |
| 1911 | 101.7 mm (4.0 in) |
| 1912 | 74.0 mm (2.9 in) |
| 1913 | 100.9 mm (4.0 in) |
| 1914 | 100.0 mm (3.9 in) |
| 1915 | 59.5 mm (2.3 in) |
| 1916 | 75.8 mm (3.0 in) |
| 1917 | 76.1 mm (3.0 in) |
| 1918 | 96.1 mm (3.8 in) |
| 1919 | 91.8 mm (3.6 in) |
| 1920 | 109.3 mm (4.3 in) |
| 1921 | 51.6 mm (2.0 in) |
| 1922 | 97.4 mm (3.8 in) |
| 1923 | 115.5 mm (4.5 in) |
| 1924 | 146.8 mm (5.8 in) |
| 1925 | 70.9 mm (2.8 in) |
| 1926 | 89.0 mm (3.5 in) |
| 1927 | 96.7 mm (3.8 in) |
| 1928 | 96.8 mm (3.8 in) |
| 1929 | 71.4 mm (2.8 in) |
| 1930 | 76.7 mm (3.0 in) |
| 1931 | 87.7 mm (3.5 in) |
| 1932 | 80.7 mm (3.2 in) |
| 1933 | 67.8 mm (2.7 in) |
| 1934 | 68.7 mm (2.7 in) |
| 1935 | 90.6 mm (3.6 in) |
| 1936 | 68.6 mm (2.7 in) |
| 1937 | 129.2 mm (5.1 in) |
| 1938 | 85.3 mm (3.4 in) |
| 1939 | 68.0 mm (2.7 in) |
| 1940 | 96.8 mm (3.8 in) |
| 1941 | 48.2 mm (1.9 in) |
| 1942 | 87.9 mm (3.5 in) |
| 1943 | 131.7 mm (5.2 in) |
| 1944 | 77.6 mm (3.1 in) |
| 1945 | 81.7 mm (3.2 in) |
| 1946 | 128.5 mm (5.1 in) |
| 1947 | 73.2 mm (2.9 in) |
| 1948 | 101.0 mm (4.0 in) |
| 1949 | 71.5 mm (2.8 in) |
| 1950 | 104.4 mm (4.1 in) |
| 1951 | 59.3 mm (2.3 in) |
| 1952 | 80.2 mm (3.2 in) |
| 1953 | 104.2 mm (4.1 in) |
| 1954 | 106.8 mm (4.2 in) |
| 1955 | 80.6 mm (3.2 in) |
| 1956 | 90.5 mm (3.6 in) |
| 1957 | 64.0 mm (2.5 in) |
| 1958 | 83.3 mm (3.3 in) |
| 1959 | 91.5 mm (3.6 in) |
| 1960 | 86.9 mm (3.4 in) |
| 1961 | 50.2 mm (2.0 in) |
| 1962 | 50.9 mm (2.0 in) |
| 1963 | 79.1 mm (3.1 in) |
| 1964 | 61.6 mm (2.4 in) |
| 1965 | 80.4 mm (3.2 in) |
| 1966 | 56.5 mm (2.2 in) |
| 2025 | 49.3 mm (1.9 in) |
| 2026 | 60.1 mm (2.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1901 | 22 days |
| 1902 | 21 days |
| 1903 | 24 days |
| 1904 | 18 days |
| 1905 | 24 days |
| 1906 | 25 days |
| 1907 | 16 days |
| 1908 | 29 days |
| 1909 | 15 days |
| 1910 | 14 days |
| 1911 | 41 days |
| 1912 | 16 days |
| 1913 | 17 days |
| 1914 | 30 days |
| 1915 | 12 days |
| 1916 | 18 days |
| 1917 | 21 days |
| 1918 | 35 days |
| 1919 | 32 days |
| 1920 | 28 days |
| 1921 | 43 days |
| 1922 | 17 days |
| 1923 | 20 days |
| 1924 | 25 days |
| 1925 | 28 days |
| 1926 | 21 days |
| 1927 | 21 days |
| 1928 | 27 days |
| 1929 | 37 days |
| 1930 | 22 days |
| 1931 | 25 days |
| 1932 | 26 days |
| 1933 | 23 days |
| 1934 | 29 days |
| 1935 | 18 days |
| 1936 | 20 days |
| 1937 | 25 days |
| 1938 | 36 days |
| 1939 | 22 days |
| 1940 | 18 days |
| 1941 | 19 days |
| 1942 | 34 days |
| 1943 | 25 days |
| 1944 | 31 days |
| 1945 | 33 days |
| 1946 | 20 days |
| 1947 | 18 days |
| 1948 | 30 days |
| 1949 | 27 days |
| 1950 | 22 days |
| 1951 | 15 days |
| 1952 | 24 days |
| 1953 | 47 days |
| 1954 | 21 days |
| 1955 | 24 days |
| 1956 | 36 days |
| 1957 | 19 days |
| 1958 | 27 days |
| 1959 | 37 days |
| 1960 | 13 days |
| 1961 | 18 days |
| 1962 | 17 days |
| 1963 | 28 days |
| 1964 | 18 days |
| 1965 | 14 days |
| 1966 | 13 days |
| 2025 | 24 days |
| 2026 | 17 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
65 years with a frostAcross 65 years with a frost, the median last spring frost at Geneve Observatoire falls on 8 April and the median first autumn frost on 6 November, which leaves a median of 214 days between them.
In 1936 to 1965 the median growing season was 223 days. That is 24 days more than in 1901 to 1930.
Fitted over all years, the growing season changes by +8.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1901 to 1930) | Recent period (1936 to 1965) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 8 April | 16 April | 1 April | 15 days earlier | -4.5 days per decade |
| First autumn frost | 6 November | 31 October | 11 November | 11 days later | +3.5 days per decade |
| Growing days | 214 days | 199 days | 223 days | 24 days more | +8.0 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
66 years, 1901 to 1966A day with at least 48.0 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 83.1 mm (3.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 48.0 mm (1.9 in) | |
| 5 years | 59.6 mm (2.3 in) | |
| 10 years | 66.2 mm (2.6 in) | |
| 25 years | 73.7 mm (2.9 in) | |
| 50 years | 78.6 mm (3.1 in) | |
| 100 years | 83.1 mm (3.3 in) | Longer than the 66 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, 66 years of values from 1901 to 1966.
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: 79.8 mm (3.1 in) in 1943; 76.0 mm (3.0 in) in 1950; 71.5 mm (2.8 in) in 1940.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Geneve Observatoire, at 1950. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1950 ran 0.3 C (0.5 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1950 | +0.3 | +0.5 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
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 (2026-10-12).