Urania Threshold Days by Year (USC00169235)

16 fixed thresholds counted per year at Urania (USC00169235): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Urania Thresholds

Urania: days with a maximum temperature at or above 30 C (86 F) in 40 years, most in 1963 with 173.
Urania: days with a maximum temperature at or above 35 C (95 F) in 40 years, most in 1954 with 102.
Urania: days with a maximum temperature at or above 90 F (32.2 C) in 40 years, most in 1953 with 132.
Urania: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1957 with 60.
16 fixed thresholds have at least one qualifying day at Urania.

Days at or above 30 C (86 F)

40 years with a qualifying day

Days per year at Urania with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 173 in 1963.

Days at or above 30 C (86 F) per year at Urania
Year	Days	Decade average
1930	138	141.2
1931	132	141.2
1932	125	141.2
1933	137	141.2
1934	146	141.2
1935	144	141.2
1936	157	141.2
1937	144	141.2
1938	140	141.2
1939	149	141.2
1940	118	136.9
1941	150	136.9
1942	138	136.9
1943	149	136.9
1944	141	136.9
1945	132	136.9
1946	114	136.9
1947	143	136.9
1948	151	136.9
1949	133	136.9
1950	126	143.2
1951	131	143.2
1952	150	143.2
1953	152	143.2
1954	154	143.2
1955	170	143.2
1956	164	143.2
1957	120	143.2
1958	134	143.2
1959	131	143.2
1960	140	140
1961	121	140
1962	155	140
1963	173	140
1964	135	140
1965	143	140
1966	133	140
1967	138	140
1968	130	140
1969	132	140

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

First to last qualifying date each year at Urania
Year	First date	Last date
1930	1930-04-03	1930-10-16
1931	1931-04-16	1931-11-14
1932	1932-02-28	1932-10-25
1933	1933-04-09	1933-10-16
1934	1934-04-03	1934-10-30
1935	1935-03-06	1935-11-10
1936	1936-03-10	1936-11-02
1937	1937-04-16	1937-10-31
1938	1938-03-03	1938-10-29
1939	1939-04-01	1939-10-27
1940	1940-03-31	1940-10-27
1941	1941-04-11	1941-10-24
1942	1942-04-25	1942-11-09
1943	1943-01-23	1943-10-22
1944	1944-04-15	1944-10-26
1945	1945-03-15	1945-11-02
1946	1946-03-29	1946-10-09
1947	1947-04-06	1947-10-25
1948	1948-04-06	1948-11-04
1949	1949-04-07	1949-10-21
1950	1950-03-25	1950-10-16
1951	1951-03-07	1951-10-31
1952	1952-04-29	1952-10-27
1953	1953-03-18	1953-10-25
1954	1954-04-05	1954-10-26
1955	1955-03-11	1955-11-15
1956	1956-03-06	1956-10-25
1957	1957-04-18	1957-09-21
1958	1958-04-04	1958-10-25
1959	1959-05-07	1959-10-12
1960	1960-04-06	1960-10-13
1961	1961-04-28	1961-10-13
1962	1962-04-23	1962-10-20
1963	1963-03-12	1963-10-27
1964	1964-04-07	1964-11-12
1965	1965-04-08	1965-10-18
1966	1966-03-31	1966-10-09
1967	1967-03-11	1967-10-24
1968	1968-04-14	1968-10-31
1969	1969-05-12	1969-10-20

Every Fixed Threshold

Fixed thresholds at Urania
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	40	173	1963	132
35 C (95 F): Days	40	102	1954	43
40 C (104 F): Days	15	13	1954	1
90 F (32.2 C): Days	40	132	1953	112
100 F (37.8 C): Days	28	55	1954	13
0 C (32 F): Ice days (max	12	4	1951	1
0 C (32 F): Frost days (min	38	68	1963	34
-10 C (14 F): Days with min	14	7	1940	1
20 C (68 F): Tropical nights (min	38	113	1941	83
25 C (77 F): Days with min	19	9	1969	9
10 mm (0.39 in): Days with 10 mm or more rain	40	60	1957	31
25 mm (0.98 in): Days with 25 mm or more rain	40	34	1940	11
50 mm (1.97 in): Days with 50 mm or more rain	40	11	1933	3
100 mm (3.94 in): Days with 100 mm or more rain	23	4	1951	2
200 mm (7.87 in): Days with 200 mm or more rain	2	1	1939	1
10 cm (3.9 in): Days with 10 cm or more snowfall	8	3	1935	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

Data for Urania 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Urania Threshold Days by Year (USC00169235)

Key Facts for Urania Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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