Ellis Threshold Days by Year (USC00142452)

18 fixed thresholds counted per year at Ellis (USC00142452): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ellis Thresholds

Ellis: days with 10 mm (0.39 in) or more of precipitation in 86 years, most in 1973 with 31.
Ellis: days with 25 mm (0.98 in) or more of precipitation in 85 years, most in 1996 with 13.
Ellis: days with 50 mm (1.97 in) or more of precipitation in 55 years, most in 1987 with 5.
Ellis: days with 10 cm (3.9 in) or more of snowfall in 48 years, most in 1955 with 4.
18 fixed thresholds have at least one qualifying day at Ellis.

Days at or above 30 C (86 F)

13 years with a qualifying day

Days per year at Ellis with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 120 in 1939.

Days at or above 30 C (86 F) per year at Ellis
Year	Days	Decade average
1937	98	108.3
1938	107	108.3
1939	120	108.3
1940	86	85.6
1941	81	85.6
1942	80	85.6
1943	97	85.6
1944	80	85.6
1945	82	85.6
1946	84	85.6
1947	95	85.6
1950	50	50
1951	50	50

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

First to last qualifying date each year at Ellis
Year	First date	Last date
1937	1937-04-22	1937-10-29
1938	1938-06-04	1938-10-31
1939	1939-04-22	1939-10-26
1940	1940-04-01	1940-10-25
1941	1941-05-13	1941-09-27
1942	1942-04-04	1942-10-07
1943	1943-03-29	1943-10-28
1944	1944-05-12	1944-09-22
1945	1945-04-09	1945-11-05
1946	1946-03-31	1946-09-26
1947	1947-04-30	1947-10-21
1950	1950-03-25	1950-10-30
1951	1951-04-28	1951-10-03

Every Fixed Threshold

Fixed thresholds at Ellis
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	13	120	1939	50
35 C (95 F): Days	13	61	1937	10
40 C (104 F): Days	11	16	1943	3
90 F (32.2 C): Days	13	90	1939	29
100 F (37.8 C): Days	13	30	1937	2
110 F (43.3 C): Days	4	1	1937	1
0 C (32 F): Ice days (max	13	41	1940	20
0 C (32 F): Frost days (min	13	155	1943	149
-10 C (14 F): Days with min	13	49	1951	49
-20 C (-4 F): Days with min	11	7	1940	3
20 C (68 F): Tropical nights (min	13	53	1938	23
25 C (77 F): Days with min	7	8	1937	4
10 mm (0.39 in): Days with 10 mm or more rain	86	31	1973	13
25 mm (0.98 in): Days with 25 mm or more rain	85	13	1996	4
50 mm (1.97 in): Days with 50 mm or more rain	55	5	1987	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1965	1
10 cm (3.9 in): Days with 10 cm or more snowfall	48	4	1955	1
25 cm (9.8 in): Days with 25 cm or more snowfall	8	1	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1937.

Download the Data

Data for Ellis 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Ellis Threshold Days by Year (USC00142452)

Key Facts for Ellis Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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