Midvale Threshold Days by Year (USC00425610)

18 fixed thresholds counted per year at Midvale (USC00425610): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Midvale Thresholds

Midvale: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1944 with 17.
Midvale: nights with a minimum temperature at or below 0 C (32 F) in 46 years, most in 1912 with 174.
Midvale: nights with a minimum temperature at or below -10 C (14 F) in 46 years, most in 1931 with 48.
Midvale: nights with a minimum temperature at or above 20 C (68 F) in 42 years, most in 1942 with 12.
18 fixed thresholds have at least one qualifying day at Midvale.

Days at or above 30 C (86 F)

24 years with a qualifying day

Days per year at Midvale with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 110 in 1934.

Days at or above 30 C (86 F) per year at Midvale
Year	Days	Decade average
1912	65	81.3
1913	93	81.3
1914	86	81.3
1929	75	75
1930	84	95.2
1931	106	95.2
1932	80	95.2
1933	96	95.2
1934	110	95.2
1942	87	77.9
1943	88	77.9
1944	81	77.9
1945	75	77.9
1946	77	77.9
1948	70	77.9
1949	67	77.9
1950	60	81
1951	62	81
1952	90	81
1953	92	81
1954	83	81
1955	81	81
1956	97	81
1957	83	81

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

First to last qualifying date each year at Midvale
Year	First date	Last date
1912	1912-05-17	1912-09-02
1913	1913-05-10	1913-09-21
1914	1914-05-07	1914-09-26
1929	1929-05-24	1929-09-19
1930	1930-05-26	1930-09-21
1931	1931-05-12	1931-09-28
1932	1932-05-11	1932-09-28
1933	1933-05-29	1933-09-29
1934	1934-04-12	1934-09-19
1942	1942-05-21	1942-10-09
1943	1943-05-27	1943-10-07
1944	1944-05-13	1944-10-08
1945	1945-05-03	1945-09-15
1946	1946-04-25	1946-09-30
1948	1948-05-16	1948-09-15
1949	1949-06-10	1949-09-27
1950	1950-06-05	1950-09-07
1951	1951-05-27	1951-09-27
1952	1952-05-02	1952-10-03
1953	1953-06-09	1953-10-09
1954	1954-05-08	1954-10-07
1955	1955-05-21	1955-09-14
1956	1956-05-18	1956-10-07
1957	1957-06-02	1957-10-01

Every Fixed Threshold

Fixed thresholds at Midvale
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	24	110	1934	83
35 C (95 F): Days	24	42	1933	36
40 C (104 F): Days	9	7	1913	1
90 F (32.2 C): Days	24	88	1934	68
100 F (37.8 C): Days	19	20	1913	4
110 F (43.3 C): Days	1	1	1913	1
0 C (32 F): Ice days (max	24	47	1949	6
0 C (32 F): Frost days (min	46	174	1912	126
-10 C (14 F): Days with min	46	48	1931	20
-20 C (-4 F): Days with min	30	16	1949	2
-30 C (-22 F): Days with min	2	1	1932	1
20 C (68 F): Tropical nights (min	42	12	1942	5
25 C (77 F): Days with min	1	1	1931	1
10 mm (0.39 in): Days with 10 mm or more rain	55	17	1944	11
25 mm (0.98 in): Days with 25 mm or more rain	30	3	1944	2
50 mm (1.97 in): Days with 50 mm or more rain	1	0	n/a	1
10 cm (3.9 in): Days with 10 cm or more snowfall	30	7	1952	4
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1944	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

Data for Midvale 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).

Midvale Threshold Days by Year (USC00425610)

Key Facts for Midvale Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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