Impfondo Threshold Days by Year

8 fixed thresholds counted per year at Impfondo (CF000004459): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Impfondo Thresholds

Impfondo: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 1973 with 283.
Impfondo: days with a maximum temperature at or above 90 F (32.2 C) in 28 years, most in 1952 with 129.
Impfondo: nights with a minimum temperature at or above 20 C (68 F) in 28 years, most in 1958 with 306.
Impfondo: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1977 with 69.
8 fixed thresholds have at least one qualifying day at Impfondo.

Days at or above 30 C (86 F)

28 years with a qualifying day

Days per year at Impfondo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 283 in 1973.

Days at or above 30 C (86 F) per year at Impfondo
Year	Days	Decade average
1950	273	233.1
1951	274	233.1
1952	263	233.1
1953	254	233.1
1954	192	233.1
1955	198	233.1
1956	184	233.1
1957	226	233.1
1958	234	233.1
1960	196	209.4
1961	173	209.4
1962	201	209.4
1963	208	209.4
1964	199	209.4
1967	228	209.4
1968	233	209.4
1969	237	209.4
1970	255	242.5
1971	237	242.5
1972	267	242.5
1973	283	242.5
1974	202	242.5
1975	223	242.5
1976	235	242.5
1977	237	242.5
1978	229	242.5
1979	257	242.5
1980	235	235

For each year, a bar from the first to the last day at Impfondo meeting 30 C (86 F).

First to last qualifying date each year at Impfondo
Year	First date	Last date
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-03	1954-12-27
1955	1955-01-02	1955-12-25
1956	1956-01-02	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1960	1960-01-02	1960-12-31
1961	1961-01-01	1961-12-30
1962	1962-01-02	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-02	1964-12-29
1967	1967-01-02	1967-12-30
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-30
1975	1975-01-03	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-30
1980	1980-01-01	1980-12-31

Every Fixed Threshold

Fixed thresholds at Impfondo
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	28	283	1973	235
35 C (95 F): Days	25	22	1973	10
90 F (32.2 C): Days	28	129	1952	70
20 C (68 F): Tropical nights (min	28	306	1958	276
10 mm (0.39 in): Days with 10 mm or more rain	28	69	1977	68
25 mm (0.98 in): Days with 25 mm or more rain	28	36	1971	36
50 mm (1.97 in): Days with 50 mm or more rain	28	10	1969	8
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1950	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

Data for Impfondo 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). Threshold counts are computed by this site.

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

Impfondo Threshold Days by Year

Key Facts for Impfondo Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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