New Chelsea Threshold Days by Year (CA008402840)

12 fixed thresholds counted per year at New Chelsea (CA008402840): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for New Chelsea Thresholds

New Chelsea: days with a maximum temperature at or below 0 C (32 F) in 21 years, most in 1972 with 82.
New Chelsea: nights with a minimum temperature at or below 0 C (32 F) in 21 years, most in 1972 with 180.
New Chelsea: nights with a minimum temperature at or below -10 C (14 F) in 21 years, most in 1972 with 61.
New Chelsea: days with 10 mm (0.39 in) or more of precipitation in 21 years, most in 1970 with 56.
12 fixed thresholds have at least one qualifying day at New Chelsea.

Nights at or below 0 C (32 F)

21 years with a qualifying day

Days per year at New Chelsea with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 180 in 1972.

Nights at or below 0 C (32 F) per year at New Chelsea
Year	Days	Decade average
1963	151	149.9
1964	163	149.9
1965	167	149.9
1966	132	149.9
1967	155	149.9
1968	156	149.9
1969	125	149.9
1970	149	157.4
1971	140	157.4
1972	180	157.4
1973	152	157.4
1974	175	157.4
1975	156	157.4
1976	149	157.4
1977	158	157.4
1978	167	157.4
1979	148	157.4
1980	173	145
1981	126	145
1982	154	145
1983	127	145

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

First to last qualifying date each year at New Chelsea
Year	First date	Last date
1963	1963-01-03	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-02	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-28
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	1973-12-30
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-30
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-03	1981-12-31
1982	1982-01-02	1982-12-31
1983	1983-01-02	1983-12-31

Every Fixed Threshold

Fixed thresholds at New Chelsea
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	2	2	1967	2
0 C (32 F): Ice days (max	21	82	1972	52
0 C (32 F): Frost days (min	21	180	1972	127
-10 C (14 F): Days with min	21	61	1972	16
-20 C (-4 F): Days with min	4	5	1975	1
20 C (68 F): Tropical nights (min	2	1	1972	1
10 mm (0.39 in): Days with 10 mm or more rain	21	56	1970	38
25 mm (0.98 in): Days with 25 mm or more rain	21	16	1970	6
50 mm (1.97 in): Days with 50 mm or more rain	10	4	1973	2
10 cm (3.9 in): Days with 10 cm or more snowfall	21	12	1970	5
25 cm (9.8 in): Days with 25 cm or more snowfall	14	3	1964	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1982	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

Data for New Chelsea 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).

New Chelsea Threshold Days by Year (CA008402840)

Key Facts for New Chelsea Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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