Ilulissat Threshold Days by Year (GLE00146961)

8 fixed thresholds counted per year at Ilulissat (GLE00146961): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ilulissat Thresholds

Ilulissat: days with a maximum temperature at or below 0 C (32 F) in 24 years, most in 1975 with 193.
Ilulissat: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1967 with 9.
Ilulissat: nights with a minimum temperature at or below 0 C (32 F) in 22 years, most in 1963 with 267.
Ilulissat: nights with a minimum temperature at or below -10 C (14 F) in 22 years, most in 1975 with 169.
8 fixed thresholds have at least one qualifying day at Ilulissat.

Nights at or below 0 C (32 F)

22 years with a qualifying day

Days per year at Ilulissat with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 267 in 1963.

Nights at or below 0 C (32 F) per year at Ilulissat
Year	Days	Decade average
1961	250	247.7
1962	255	247.7
1963	267	247.7
1964	253	247.7
1965	236	247.7
1966	248	247.7
1967	237	247.7
1968	236	247.7
1969	247	247.7
1970	256	253.4
1971	262	253.4
1972	259	253.4
1973	252	253.4
1974	260	253.4
1975	247	253.4
1977	245	253.4
1978	258	253.4
1979	242	253.4
1980	234	238.7
1981	245	238.7
1989	237	238.7
1990	223	223

For each year, a bar from the first to the last day at Ilulissat meeting 0 C (32 F).

First to last qualifying date each year at Ilulissat
Year	First date	Last date
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	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	1971-01-03	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1977	1977-01-02	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1989	1989-01-03	1989-12-31
1990	1990-01-01	1990-12-31

Every Fixed Threshold

Fixed thresholds at Ilulissat
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Ice days (max	24	193	1975	176
0 C (32 F): Frost days (min	22	267	1963	223
-10 C (14 F): Days with min	22	169	1975	142
-20 C (-4 F): Days with min	22	94	1971	69
-30 C (-22 F): Days with min	15	21	1989	10
10 mm (0.39 in): Days with 10 mm or more rain	24	9	1967	6
25 mm (0.98 in): Days with 25 mm or more rain	9	3	1967	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1966	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

Data for Ilulissat 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Ilulissat Threshold Days by Year (GLE00146961)

Key Facts for Ilulissat Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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