Omaha #1 Threshold Days by Year (USW00094918)

18 fixed thresholds counted per year at Omaha #1 (USW00094918): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Omaha #1 Thresholds

Omaha #1: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1965 with 36.
Omaha #1: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1977 with 15.
Omaha #1: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1983 with 73.
Omaha #1: days with a maximum temperature at or above 90 F (32.2 C) in 44 years, most in 1955 with 51.
18 fixed thresholds have at least one qualifying day at Omaha #1.

Days at or above 30 C (86 F)

44 years with a qualifying day

Days per year at Omaha #1 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 73 in 1983.

Days at or above 30 C (86 F) per year at Omaha #1
Year	Days	Decade average
1955	70	48.8
1956	61	48.8
1957	41	48.8
1958	29	48.8
1959	43	48.8
1960	35	40.2
1961	43	40.2
1962	39	40.2
1963	54	40.2
1964	45	40.2
1965	26	40.2
1966	38	40.2
1967	36	40.2
1968	46	40.2
1969	40	40.2
1970	61	51
1971	52	51
1972	44	51
1973	44	51
1974	44	51
1975	62	51
1976	59	51
1977	42	51
1978	54	51
1979	48	51
1980	67	51.9
1981	42	51.9
1982	33	51.9
1983	73	51.9
1984	46	51.9
1985	40	51.9
1986	41	51.9
1987	61	51.9
1988	67	51.9
1989	49	51.9
1990	50	35.5
1991	62	35.5
1992	17	35.5
1993	26	35.5
1996	19	35.5
1997	33	35.5
1998	42	35.5
1999	35	35.5
2000	50	50

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

First to last qualifying date each year at Omaha #1
Year	First date	Last date
1955	1955-04-18	1955-09-18
1956	1956-04-01	1956-10-12
1957	1957-06-04	1957-09-01
1958	1958-05-11	1958-10-04
1959	1959-05-01	1959-09-08
1960	1960-04-22	1960-09-07
1961	1961-04-20	1961-09-10
1962	1962-05-04	1962-09-12
1963	1963-05-08	1963-10-14
1964	1964-04-16	1964-09-09
1965	1965-04-30	1965-08-26
1966	1966-05-04	1966-10-07
1967	1967-05-18	1967-09-25
1968	1968-03-30	1968-09-02
1969	1969-05-26	1969-10-04
1970	1970-04-28	1970-09-20
1971	1971-06-03	1971-10-01
1972	1972-04-06	1972-09-19
1973	1973-05-18	1973-08-30
1974	1974-06-15	1974-09-27
1975	1975-05-18	1975-10-13
1976	1976-06-08	1976-10-01
1977	1977-05-16	1977-09-06
1978	1978-05-19	1978-09-18
1979	1979-05-17	1979-09-10
1980	1980-04-20	1980-09-30
1981	1981-04-25	1981-09-29
1982	1982-06-06	1982-10-05
1983	1983-05-27	1983-10-02
1984	1984-06-07	1984-09-19
1985	1985-04-18	1985-09-19
1986	1986-03-28	1986-09-21
1987	1987-04-19	1987-09-26
1988	1988-05-12	1988-09-21
1989	1989-04-21	1989-09-06
1990	1990-06-11	1990-10-05
1991	1991-04-06	1991-09-29
1992	1992-04-30	1992-09-15
1993	1993-05-27	1993-09-12
1996	1996-04-11	1996-08-06
1997	1997-05-15	1997-10-06
1998	1998-05-18	1998-09-29
1999	1999-06-05	1999-09-08
2000	2000-04-05	2000-09-19

Every Fixed Threshold

Fixed thresholds at Omaha #1
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	44	73	1983	50
35 C (95 F): Days	37	23	1955	3
40 C (104 F): Days	5	3	1974	1
90 F (32.2 C): Days	44	51	1955	17
100 F (37.8 C): Days	18	9	1955	3
0 C (32 F): Ice days (max	44	78	1978	39
0 C (32 F): Frost days (min	43	154	1959	118
-10 C (14 F): Days with min	43	77	1955	38
-20 C (-4 F): Days with min	43	27	1978	8
-30 C (-22 F): Days with min	5	2	1989	2
20 C (68 F): Tropical nights (min	43	60	1983	34
25 C (77 F): Days with min	20	8	1983	2
10 mm (0.39 in): Days with 10 mm or more rain	46	36	1965	21
25 mm (0.98 in): Days with 25 mm or more rain	46	15	1977	7
50 mm (1.97 in): Days with 50 mm or more rain	34	5	1973	3
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1960	1
10 cm (3.9 in): Days with 10 cm or more snowfall	36	6	1975	3
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1957	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

Data for Omaha #1 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).

Omaha #1 Threshold Days by Year (USW00094918)

Key Facts for Omaha #1 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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