Mica Dam Threshold Days by Year (CA001175122)

15 fixed thresholds counted per year at Mica Dam (CA001175122): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mica Dam Thresholds

Mica Dam: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1972 with 63.
Mica Dam: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 1967 with 18.
Mica Dam: days with 10 cm (3.9 in) or more of snowfall in 22 years, most in 1972 with 41.
Mica Dam: days with 25 cm (9.8 in) or more of snowfall in 22 years, most in 1966 with 14.
15 fixed thresholds have at least one qualifying day at Mica Dam.

Days at or above 30 C (86 F)

20 years with a qualifying day

Days per year at Mica Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 30 in 1971.

Days at or above 30 C (86 F) per year at Mica Dam
Year	Days	Decade average
1963	6	11.9
1964	6	11.9
1965	14	11.9
1966	5	11.9
1967	27	11.9
1968	12	11.9
1969	13	11.9
1970	24	13.6
1971	30	13.6
1972	8	13.6
1973	10	13.6
1974	10	13.6
1975	9	13.6
1976	2	13.6
1977	10	13.6
1978	15	13.6
1979	18	13.6
1981	2	4
1982	7	4
1983	3	4

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

First to last qualifying date each year at Mica Dam
Year	First date	Last date
1963	1963-06-16	1963-08-11
1964	1964-07-02	1964-07-28
1965	1965-06-10	1965-08-23
1966	1966-07-14	1966-08-26
1967	1967-06-20	1967-08-31
1968	1968-07-02	1968-08-02
1969	1969-06-04	1969-08-24
1970	1970-06-02	1970-08-23
1971	1971-07-15	1971-08-30
1972	1972-07-24	1972-08-28
1973	1973-06-22	1973-08-13
1974	1974-06-15	1974-08-04
1975	1975-07-02	1975-07-27
1976	1976-06-17	1976-07-16
1977	1977-06-07	1977-08-20
1978	1978-06-03	1978-08-09
1979	1979-06-28	1979-08-29
1981	1981-07-18	1981-08-25
1982	1982-06-14	1982-07-30
1983	1983-05-28	1983-05-30

Every Fixed Threshold

Fixed thresholds at Mica Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	20	30	1971	3
35 C (95 F): Days	5	5	1971	1
90 F (32.2 C): Days	17	20	1971	1
100 F (37.8 C): Days	1	1	1971	1
0 C (32 F): Ice days (max	21	106	1964	61
0 C (32 F): Frost days (min	21	215	1964	153
-10 C (14 F): Days with min	21	65	1975	23
-20 C (-4 F): Days with min	21	26	1972	5
-30 C (-22 F): Days with min	7	4	1969	1
10 mm (0.39 in): Days with 10 mm or more rain	22	63	1972	36
25 mm (0.98 in): Days with 25 mm or more rain	22	18	1967	4
50 mm (1.97 in): Days with 50 mm or more rain	8	1	1964	1
10 cm (3.9 in): Days with 10 cm or more snowfall	22	41	1972	12
25 cm (9.8 in): Days with 25 cm or more snowfall	22	14	1966	1
50 cm (19.7 in): Days with 50 cm or more snowfall	6	1	1964	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 Mica Dam 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Mica Dam Threshold Days by Year (CA001175122)

Key Facts for Mica Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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