Rifton 1 N Threshold Days by Year (USC00307115)

17 fixed thresholds counted per year at Rifton 1 N (USC00307115): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rifton 1 N Thresholds

Rifton 1 N: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1945 with 54.
Rifton 1 N: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1945 with 21.
Rifton 1 N: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1938 with 7.
Rifton 1 N: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 1955 with 71.
17 fixed thresholds have at least one qualifying day at Rifton 1 N.

Days at or above 30 C (86 F)

28 years with a qualifying day

Days per year at Rifton 1 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 1955.

Days at or above 30 C (86 F) per year at Rifton 1 N
Year	Days	Decade average
1926	23	25.5
1927	7	25.5
1928	29	25.5
1929	43	25.5
1930	40	26.4
1931	38	26.4
1932	24	26.4
1933	23	26.4
1935	9	26.4
1936	15	26.4
1937	26	26.4
1938	16	26.4
1939	47	26.4
1940	35	40.2
1941	52	40.2
1942	37	40.2
1943	44	40.2
1944	55	40.2
1945	27	40.2
1947	31	40.2
1948	35	40.2
1949	46	40.2
1950	17	42.7
1951	30	42.7
1952	41	42.7
1953	45	42.7
1954	52	42.7
1955	71	42.7

For each year, a bar from the first to the last day at Rifton 1 N meeting 30 C (86 F).

First to last qualifying date each year at Rifton 1 N
Year	First date	Last date
1926	1926-05-30	1926-09-25
1927	1927-04-20	1927-09-04
1928	1928-06-30	1928-10-18
1929	1929-04-07	1929-09-04
1930	1930-05-02	1930-09-02
1931	1931-05-28	1931-09-14
1932	1932-05-16	1932-09-02
1933	1933-05-26	1933-08-26
1935	1935-07-05	1935-08-13
1936	1936-06-03	1936-08-17
1937	1937-06-01	1937-09-04
1938	1938-06-24	1938-08-16
1939	1939-04-25	1939-10-10
1940	1940-06-03	1940-09-21
1941	1941-04-15	1941-10-06
1942	1942-04-25	1942-09-16
1943	1943-05-07	1943-09-07
1944	1944-05-04	1944-09-05
1945	1945-03-29	1945-09-08
1947	1947-05-13	1947-10-23
1948	1948-06-24	1948-09-13
1949	1949-05-05	1949-10-11
1950	1950-06-07	1950-08-29
1951	1951-05-15	1951-09-12
1952	1952-06-14	1952-09-13
1953	1953-05-10	1953-09-05
1954	1954-04-20	1954-10-12
1955	1955-05-04	1955-09-19

Every Fixed Threshold

Fixed thresholds at Rifton 1 N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	28	71	1955	71
35 C (95 F): Days	19	27	1955	27
40 C (104 F): Days	3	1	1926	1
90 F (32.2 C): Days	27	51	1955	51
100 F (37.8 C): Days	8	10	1955	10
0 C (32 F): Ice days (max	28	56	1926	31
0 C (32 F): Frost days (min	28	159	1943	126
-10 C (14 F): Days with min	28	54	1940	32
-20 C (-4 F): Days with min	25	18	1948	3
-30 C (-22 F): Days with min	4	2	1943	1
20 C (68 F): Tropical nights (min	27	35	1955	35
10 mm (0.39 in): Days with 10 mm or more rain	42	54	1945	34
25 mm (0.98 in): Days with 25 mm or more rain	42	21	1945	12
50 mm (1.97 in): Days with 50 mm or more rain	33	7	1938	1
100 mm (3.94 in): Days with 100 mm or more rain	4	3	1955	3
10 cm (3.9 in): Days with 10 cm or more snowfall	12	5	1948	4
25 cm (9.8 in): Days with 25 cm or more snowfall	5	4	1964	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

Data for Rifton 1 N 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).

Rifton 1 N Threshold Days by Year (USC00307115)

Key Facts for Rifton 1 N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related