Luna Rs Threshold Days by Year

14 fixed thresholds counted per year at Luna Rs (USC00295273): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Luna Rs Thresholds

Luna Rs: days with 10 mm (0.39 in) or more of precipitation in 97 years, most in 1983 with 24.
Luna Rs: days with 25 mm (0.98 in) or more of precipitation in 78 years, most in 1906 with 5.
Luna Rs: nights with a minimum temperature at or below 0 C (32 F) in 70 years, most in 1989 with 264.
Luna Rs: nights with a minimum temperature at or below -10 C (14 F) in 70 years, most in 1964 with 114.
14 fixed thresholds have at least one qualifying day at Luna Rs.

Days at or above 30 C (86 F)

64 years with a qualifying day

Days per year at Luna Rs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 52 in 1994.

Days at or above 30 C (86 F) per year at Luna Rs
Year	Days	Decade average
1904	43	34
1905	48	34
1906	26	34
1909	19	34
1914	16	16.5
1915	17	16.5
1921	5	10.5
1925	16	10.5
1944	25	26
1945	32	26
1946	26	26
1947	25	26
1948	36	26
1949	12	26
1950	23	25.4
1951	31	25.4
1952	10	25.4
1953	22	25.4
1955	20	25.4
1956	40	25.4
1957	17	25.4
1958	32	25.4
1959	34	25.4
1960	37	20.2
1961	34	20.2
1962	21	20.2
1963	26	20.2
1964	9	20.2
1965	7	20.2
1966	19	20.2
1967	8	20.2
1968	21	20.2
1969	20	20.2
1971	34	28.6
1972	21	28.6
1973	18	28.6
1974	31	28.6
1979	39	28.6
1980	37	20.2
1981	30	20.2
1982	14	20.2
1983	9	20.2
1984	5	20.2
1985	35	20.2
1986	24	20.2
1987	14	20.2
1988	9	20.2
1989	25	20.2
1990	25	26.5
1991	11	26.5
1992	9	26.5
1993	28	26.5
1994	52	26.5
1995	35	26.5
1996	40	26.5
1997	26	26.5
1998	27	26.5
1999	12	26.5
2009	34	34
2010	41	38
2011	38	38
2012	44	38
2013	37	38
2014	30	38

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

First to last qualifying date each year at Luna Rs
Year	First date	Last date
1904	1904-05-29	1904-09-11
1905	1905-05-31	1905-09-01
1906	1906-06-08	1906-08-01
1909	1909-06-04	1909-07-19
1914	1914-06-12	1914-08-16
1915	1915-05-16	1915-08-21
1921	1921-06-24	1921-08-05
1925	1925-05-19	1925-07-25
1944	1944-06-18	1944-09-22
1945	1945-06-13	1945-09-12
1946	1946-06-04	1946-07-26
1947	1947-06-12	1947-09-24
1948	1948-06-10	1948-09-06
1949	1949-05-25	1949-08-31
1950	1950-05-31	1950-10-12
1951	1951-05-26	1951-08-18
1952	1952-06-14	1952-09-05
1953	1953-06-16	1953-09-06
1955	1955-06-07	1955-09-11
1956	1956-05-30	1956-09-19
1957	1957-06-23	1957-07-31
1958	1958-06-04	1958-09-01
1959	1959-05-13	1959-09-09
1960	1960-06-15	1960-08-29
1961	1961-06-08	1961-08-27
1962	1962-06-19	1962-08-29
1963	1963-06-18	1963-07-30
1964	1964-05-24	1964-07-20
1965	1965-06-21	1965-08-27
1966	1966-06-13	1966-08-08
1967	1967-06-27	1967-07-06
1968	1968-06-15	1968-07-21
1969	1969-06-20	1969-08-20
1971	1971-06-18	1971-09-12
1972	1972-06-27	1972-08-11
1973	1973-06-08	1973-09-04
1974	1974-05-27	1974-09-09
1979	1979-06-22	1979-09-07
1980	1980-06-13	1980-09-19
1981	1981-06-06	1981-08-27
1982	1982-06-25	1982-09-02
1983	1983-06-18	1983-07-09
1984	1984-07-04	1984-07-15
1985	1985-06-07	1985-08-31
1986	1986-06-13	1986-09-06
1987	1987-06-14	1987-08-19
1988	1988-06-21	1988-07-26
1989	1989-05-07	1989-07-19
1990	1990-06-03	1990-09-10
1991	1991-06-18	1991-08-21
1992	1992-06-28	1992-08-18
1993	1993-06-13	1993-08-11
1994	1994-06-09	1994-08-18
1995	1995-06-12	1995-09-06
1996	1996-05-11	1996-08-15
1997	1997-05-30	1997-08-28
1998	1998-06-01	1998-08-30
1999	1999-06-20	1999-08-22
2009	2009-05-07	2009-08-22
2010	2010-06-04	2010-09-30
2011	2011-05-28	2011-08-30
2012	2012-06-01	2012-09-03
2013	2013-06-01	2013-07-11
2014	2014-05-29	2014-07-27

Every Fixed Threshold

Fixed thresholds at Luna Rs
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	64	52	1994	30
35 C (95 F): Days	19	5	1990	1
90 F (32.2 C): Days	58	23	1994	6
0 C (32 F): Ice days (max	51	10	1905	5
0 C (32 F): Frost days (min	70	264	1989	221
-10 C (14 F): Days with min	70	114	1964	61
-20 C (-4 F): Days with min	66	18	1949	8
-30 C (-22 F): Days with min	15	3	1948	1
10 mm (0.39 in): Days with 10 mm or more rain	97	24	1983	19
25 mm (0.98 in): Days with 25 mm or more rain	78	5	1906	3
50 mm (1.97 in): Days with 50 mm or more rain	9	1	1921	2
10 cm (3.9 in): Days with 10 cm or more snowfall	55	10	1948	2
25 cm (9.8 in): Days with 25 cm or more snowfall	19	2	1949	2
50 cm (19.7 in): Days with 50 cm or more snowfall	1	0	n/a	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

Download the Data

Data for Luna 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Luna Rs Threshold Days by Year

Key Facts for Luna Rs Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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