Aetna 2 S Threshold Days by Year (USC00140069)

19 fixed thresholds counted per year at Aetna 2 S (USC00140069): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Aetna 2 S Thresholds

Aetna 2 S: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1957 with 33.
Aetna 2 S: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1941 with 14.
Aetna 2 S: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1941 with 5.
Aetna 2 S: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 1963 with 150.
19 fixed thresholds have at least one qualifying day at Aetna 2 S.

Days at or above 30 C (86 F)

23 years with a qualifying day

Days per year at Aetna 2 S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 150 in 1963.

Days at or above 30 C (86 F) per year at Aetna 2 S
Year	Days	Decade average
1960	104	109.9
1961	93	109.9
1963	150	109.9
1964	120	109.9
1965	94	109.9
1966	115	109.9
1968	112	109.9
1969	91	109.9
1970	127	111.4
1971	117	111.4
1972	113	111.4
1973	98	111.4
1974	93	111.4
1975	111	111.4
1976	102	111.4
1977	122	111.4
1978	114	111.4
1979	117	111.4
1980	124	111.2
1981	115	111.2
1982	95	111.2
1983	103	111.2
1984	119	111.2

For each year, a bar from the first to the last day at Aetna 2 S meeting 30 C (86 F).

First to last qualifying date each year at Aetna 2 S
Year	First date	Last date
1960	1960-03-31	1960-10-10
1961	1961-04-19	1961-10-22
1963	1963-03-24	1963-10-26
1964	1964-03-13	1964-10-07
1965	1965-04-20	1965-10-10
1966	1966-03-31	1966-10-27
1968	1968-03-29	1968-10-30
1969	1969-05-13	1969-10-03
1970	1970-02-17	1970-10-07
1971	1971-03-13	1971-10-12
1972	1972-03-10	1972-10-11
1973	1973-05-17	1973-10-23
1974	1974-03-27	1974-09-12
1975	1975-03-20	1975-10-20
1976	1976-03-25	1976-10-11
1977	1977-04-07	1977-10-26
1978	1978-03-18	1978-10-21
1979	1979-05-06	1979-10-26
1980	1980-04-20	1980-11-08
1981	1981-02-20	1981-10-05
1982	1982-02-22	1982-10-31
1983	1983-05-05	1983-10-02
1984	1984-04-25	1984-10-03

Every Fixed Threshold

Fixed thresholds at Aetna 2 S
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	23	150	1963	119
35 C (95 F): Days	23	79	1980	68
40 C (104 F): Days	20	28	1980	10
45 C (113 F): Days	1	1	1964	1
90 F (32.2 C): Days	23	108	1963	99
100 F (37.8 C): Days	23	59	1980	32
110 F (43.3 C): Days	6	2	1964	1
0 C (32 F): Ice days (max	23	37	1978	11
0 C (32 F): Frost days (min	22	134	1964	128
-10 C (14 F): Days with min	22	47	1978	16
-20 C (-4 F): Days with min	15	7	1983	1
20 C (68 F): Tropical nights (min	22	68	1980	21
25 C (77 F): Days with min	19	14	1980	2
10 mm (0.39 in): Days with 10 mm or more rain	43	33	1957	18
25 mm (0.98 in): Days with 25 mm or more rain	43	14	1941	4
50 mm (1.97 in): Days with 50 mm or more rain	30	5	1941	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1941	1
10 cm (3.9 in): Days with 10 cm or more snowfall	16	4	1971	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1970	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

Data for Aetna 2 S 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).

Aetna 2 S Threshold Days by Year (USC00140069)

Key Facts for Aetna 2 S Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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