Mikkalo 6 W Threshold Days by Year (USC00355545)

14 fixed thresholds counted per year at Mikkalo 6 W (USC00355545): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mikkalo 6 W Thresholds

Mikkalo 6 W: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1958 with 13.
Mikkalo 6 W: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 1955 with 139.
Mikkalo 6 W: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 1958 with 84.
Mikkalo 6 W: days with a maximum temperature at or above 90 F (32.2 C) in 33 years, most in 1958 with 64.
14 fixed thresholds have at least one qualifying day at Mikkalo 6 W.

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Mikkalo 6 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 84 in 1958.

Days at or above 30 C (86 F) per year at Mikkalo 6 W
Year	Days	Decade average
1952	43	43.9
1953	34	43.9
1954	22	43.9
1955	42	43.9
1956	44	43.9
1957	44	43.9
1958	84	43.9
1959	38	43.9
1960	46	51.2
1961	67	51.2
1963	41	51.2
1965	38	51.2
1967	64	51.2
1972	56	43.3
1973	52	43.3
1974	52	43.3
1975	33	43.3
1976	28	43.3
1977	47	43.3
1978	34	43.3
1979	44	43.3
1980	31	41.8
1981	52	41.8
1982	45	41.8
1983	34	41.8
1984	43	41.8
1985	43	41.8
1986	58	41.8
1987	61	41.8
1988	36	41.8
1989	15	41.8
1990	52	51.5
1991	51	51.5

For each year, a bar from the first to the last day at Mikkalo 6 W meeting 30 C (86 F).

First to last qualifying date each year at Mikkalo 6 W
Year	First date	Last date
1952	1952-05-25	1952-09-26
1953	1953-07-02	1953-09-15
1954	1954-05-17	1954-08-29
1955	1955-06-06	1955-09-08
1956	1956-05-17	1956-09-18
1957	1957-04-30	1957-09-17
1958	1958-05-15	1958-10-03
1959	1959-05-31	1959-09-11
1960	1960-06-02	1960-09-18
1961	1961-06-01	1961-09-05
1963	1963-05-21	1963-09-28
1965	1965-06-02	1965-08-31
1967	1967-05-21	1967-09-27
1972	1972-05-13	1972-09-15
1973	1973-05-13	1973-09-11
1974	1974-06-10	1974-09-25
1975	1975-05-31	1975-09-15
1976	1976-06-18	1976-09-04
1977	1977-04-24	1977-08-21
1978	1978-06-03	1978-08-10
1979	1979-05-24	1979-09-20
1980	1980-07-01	1980-10-08
1981	1981-06-24	1981-09-18
1982	1982-06-10	1982-09-06
1983	1983-05-23	1983-08-26
1984	1984-05-29	1984-09-19
1985	1985-05-22	1985-08-27
1986	1986-05-25	1986-09-05
1987	1987-05-06	1987-10-07
1988	1988-06-15	1988-09-06
1989	1989-06-07	1989-09-15
1990	1990-06-20	1990-09-30
1991	1991-06-12	1991-10-02

Every Fixed Threshold

Fixed thresholds at Mikkalo 6 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	84	1958	51
35 C (95 F): Days	32	26	1961	1
40 C (104 F): Days	5	3	1967	1
90 F (32.2 C): Days	33	64	1958	27
100 F (37.8 C): Days	22	9	1990	9
0 C (32 F): Ice days (max	32	60	1985	7
0 C (32 F): Frost days (min	34	139	1955	86
-10 C (14 F): Days with min	31	45	1985	7
-20 C (-4 F): Days with min	13	6	1957	6
20 C (68 F): Tropical nights (min	27	13	1990	26
25 C (77 F): Days with min	2	1	1982	11
10 mm (0.39 in): Days with 10 mm or more rain	36	13	1958	6
25 mm (0.98 in): Days with 25 mm or more rain	15	2	1953	1
10 cm (3.9 in): Days with 10 cm or more snowfall	20	2	1960	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

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Data for Mikkalo 6 W 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).

Mikkalo 6 W Threshold Days by Year (USC00355545)

Key Facts for Mikkalo 6 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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