Grimeton Threshold Days by Year (SWE00137966)

9 fixed thresholds counted per year at Grimeton (SWE00137966): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grimeton Thresholds

Grimeton: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1980 with 38.
Grimeton: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1967 with 4.
Grimeton: days with a maximum temperature at or below 0 C (32 F) in 23 years, most in 1963 with 61.
Grimeton: nights with a minimum temperature at or below 0 C (32 F) in 23 years, most in 1956 with 155.
9 fixed thresholds have at least one qualifying day at Grimeton.

Nights at or below 0 C (32 F)

23 years with a qualifying day

Days per year at Grimeton with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 155 in 1956.

Nights at or below 0 C (32 F) per year at Grimeton
Year	Days	Decade average
1951	119	130
1952	146	130
1953	114	130
1954	139	130
1955	152	130
1956	155	130
1957	118	130
1958	126	130
1959	101	130
1960	137	125.9
1963	132	125.9
1964	131	125.9
1965	140	125.9
1966	130	125.9
1967	93	125.9
1968	111	125.9
1969	133	125.9
1970	141	104.3
1971	95	104.3
1972	103	104.3
1973	114	104.3
1974	83	104.3
1975	90	104.3

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

First to last qualifying date each year at Grimeton
Year	First date	Last date
1951	1951-01-01	1951-12-21
1952	1952-01-02	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-29
1959	1959-01-04	1959-12-31
1960	1960-01-07	1960-12-31
1963	1963-01-01	1963-12-26
1964	1964-01-02	1964-12-30
1965	1965-01-02	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-02	1967-12-31
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	1973-12-26
1974	1974-01-01	1974-12-31
1975	1975-01-07	1975-12-26

Every Fixed Threshold

Fixed thresholds at Grimeton
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	2	6	1969	4
90 F (32.2 C): Days	1	1	1975	1
0 C (32 F): Ice days (max	23	61	1963	3
0 C (32 F): Frost days (min	23	155	1956	90
-10 C (14 F): Days with min	22	44	1963	3
-20 C (-4 F): Days with min	6	4	1956	1
10 mm (0.39 in): Days with 10 mm or more rain	31	38	1980	19
25 mm (0.98 in): Days with 25 mm or more rain	29	4	1967	2
50 mm (1.97 in): Days with 50 mm or more rain	2	2	1971	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

Data for Grimeton 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).

Grimeton Threshold Days by Year (SWE00137966)

Key Facts for Grimeton Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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