Mtn City Rs Threshold Days by Year (USC00265392)

14 fixed thresholds counted per year at Mtn City Rs (USC00265392): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mtn City Rs Thresholds

Mtn City Rs: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1970 with 14.
Mtn City Rs: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 1966 with 268.
Mtn City Rs: nights with a minimum temperature at or below -10 C (14 F) in 29 years, most in 1964 with 109.
Mtn City Rs: nights with a minimum temperature at or below -20 C (-4 F) in 29 years, most in 1964 with 42.
14 fixed thresholds have at least one qualifying day at Mtn City Rs.

Days at or above 30 C (86 F)

20 years with a qualifying day

Days per year at Mtn City Rs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 58 in 1967.

Days at or above 30 C (86 F) per year at Mtn City Rs
Year	Days	Decade average
1958	31	36.5
1959	42	36.5
1960	45	41.7
1964	38	41.7
1965	15	41.7
1966	49	41.7
1967	58	41.7
1969	45	41.7
1970	44	42.3
1971	45	42.3
1972	33	42.3
1974	57	42.3
1975	28	42.3
1977	45	42.3
1979	44	42.3
1980	27	25.8
1981	40	25.8
1983	15	25.8
1987	21	25.8
1994	51	51

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

First to last qualifying date each year at Mtn City Rs
Year	First date	Last date
1958	1958-06-20	1958-09-07
1959	1959-06-17	1959-09-12
1960	1960-06-16	1960-08-30
1964	1964-06-25	1964-08-23
1965	1965-07-06	1965-08-11
1966	1966-06-27	1966-09-22
1967	1967-05-22	1967-09-29
1969	1969-06-04	1969-09-08
1970	1970-06-21	1970-08-31
1971	1971-06-21	1971-09-13
1972	1972-06-29	1972-08-30
1974	1974-06-11	1974-09-21
1975	1975-07-03	1975-08-27
1977	1977-06-04	1977-09-08
1979	1979-06-11	1979-09-19
1980	1980-07-11	1980-09-06
1981	1981-06-24	1981-09-17
1983	1983-05-28	1983-08-09
1987	1987-06-13	1987-09-24
1994	1994-06-20	1994-09-27

Every Fixed Threshold

Fixed thresholds at Mtn City Rs
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	20	58	1967	51
35 C (95 F): Days	11	9	1960	4
40 C (104 F): Days	1	1	1994	1
90 F (32.2 C): Days	20	26	1959	20
100 F (37.8 C): Days	1	1	1994	1
0 C (32 F): Ice days (max	20	39	1971	17
0 C (32 F): Frost days (min	29	268	1966	227
-10 C (14 F): Days with min	29	109	1964	55
-20 C (-4 F): Days with min	29	42	1964	6
-30 C (-22 F): Days with min	21	5	1972	4
-40 C (-40 F): Days with min	2	1	1974	1
10 mm (0.39 in): Days with 10 mm or more rain	36	14	1970	15
25 mm (0.98 in): Days with 25 mm or more rain	13	2	1970	3
10 cm (3.9 in): Days with 10 cm or more snowfall	8	5	1958	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

Data for Mtn City Rs 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).

Mtn City Rs Threshold Days by Year (USC00265392)

Key Facts for Mtn City Rs Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related