Built 2026-10-19 (19 October 2026)

Geneva Threshold Days by Year (USC00013255)

15 fixed thresholds counted per year at Geneva (USC00013255): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Geneva Thresholds

  • Geneva: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1975 with 67.
  • Geneva: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1964 with 28.
  • Geneva: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 1964 with 12.
  • Geneva: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 1968 with 71.
  • 15 fixed thresholds have at least one qualifying day at Geneva.
28 years with a qualifying day
Days at or above 30 C (86 F) per year at Geneva Days per year at Geneva with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 178 in 1955. 0501001502001938: 1401939: 1421940: 1471941: 1641942: 1501943: 1581944: 1451949: 1511950: 1321951: 1511952: 1421953: 1551955: 1781956: 1381957: 1401958: 1441959: 1421960: 1381961: 1201962: 1431963: 1401964: 1281965: 1341966: 1071967: 1221968: 1281970: 1441971: 1251938194119441951195519581961196419671971
Days per year at Geneva with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 178 in 1955.
Days at or above 30 C (86 F) per year at Geneva
YearDaysDecade average
1938140141
1939142141
1940147152.5
1941164152.5
1942150152.5
1943158152.5
1944145152.5
1949151152.5
1950132146.9
1951151146.9
1952142146.9
1953155146.9
1955178146.9
1956138146.9
1957140146.9
1958144146.9
1959142146.9
1960138128.9
1961120128.9
1962143128.9
1963140128.9
1964128128.9
1965134128.9
1966107128.9
1967122128.9
1968128128.9
1970144134.5
1971125134.5
First to last qualifying date each year at Geneva For each year, a bar from the first to the last day at Geneva meeting 30 C (86 F). 1938: 21 March 1938 to 13 November 19381939: 23 March 1939 to 27 October 19391940: 29 March 1940 to 31 October 19401941: 11 April 1941 to 31 October 19411942: 8 April 1942 to 24 October 19421943: 3 April 1943 to 24 October 19431944: 27 February 1944 to 30 October 19441949: 25 March 1949 to 26 October 19491950: 26 March 1950 to 1 November 19501951: 4 March 1951 to 1 November 19511952: 10 April 1952 to 16 October 19521953: 14 March 1953 to 25 October 19531955: 5 March 1955 to 13 October 19551956: 5 April 1956 to 8 October 19561957: 15 March 1957 to 24 September 19571958: 5 April 1958 to 11 October 19581959: 8 April 1959 to 14 October 19591960: 2 April 1960 to 15 October 19601961: 24 April 1961 to 2 November 19611962: 22 March 1962 to 16 October 19621963: 18 March 1963 to 10 October 19631964: 23 April 1964 to 3 October 19641965: 7 April 1965 to 24 September 19651966: 2 April 1966 to 6 October 19661967: 12 March 1967 to 8 October 19671968: 9 April 1968 to 18 October 19681970: 14 April 1970 to 13 October 19701971: 9 May 1971 to 3 November 19711938194219501955195919631967JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Geneva meeting 30 C (86 F).
First to last qualifying date each year at Geneva
YearFirst dateLast date
19381938-03-211938-11-13
19391939-03-231939-10-27
19401940-03-291940-10-31
19411941-04-111941-10-31
19421942-04-081942-10-24
19431943-04-031943-10-24
19441944-02-271944-10-30
19491949-03-251949-10-26
19501950-03-261950-11-01
19511951-03-041951-11-01
19521952-04-101952-10-16
19531953-03-141953-10-25
19551955-03-051955-10-13
19561956-04-051956-10-08
19571957-03-151957-09-24
19581958-04-051958-10-11
19591959-04-081959-10-14
19601960-04-021960-10-15
19611961-04-241961-11-02
19621962-03-221962-10-16
19631963-03-181963-10-10
19641964-04-231964-10-03
19651965-04-071965-09-24
19661966-04-021966-10-06
19671967-03-121967-10-08
19681968-04-091968-10-18
19701970-04-141970-10-13
19711971-05-091971-11-03

Every Fixed Threshold

Fixed thresholds at Geneva
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days281781955125
35 C (95 F): Days2766195122
40 C (104 F): Days3219381
90 F (32.2 C): Days28129195598
100 F (37.8 C): Days211919521
0 C (32 F): Ice days (max4219621
0 C (32 F): Frost days (min2971196857
-10 C (14 F): Days with min7619706
20 C (68 F): Tropical nights (min29113194146
25 C (77 F): Days with min4319441
10 mm (0.39 in): Days with 10 mm or more rain4467197567
25 mm (0.98 in): Days with 25 mm or more rain4428196421
50 mm (1.97 in): Days with 50 mm or more rain411219646
100 mm (3.94 in): Days with 100 mm or more rain20319362
200 mm (7.87 in): Days with 200 mm or more rain3119391

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.

Download the Data

  • Data for Geneva 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).