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O'Neill September Weather

Averages and records for weather in O'Neill, Nebraska in the month of September.

Typical O'Neill September Weather 1991–2020
Average daily high	76.7 °F
Average daily low	49.3 °F
Average monthly precipitation	2.1 inches
Average monthly snow	none
Daily chance of precipitation	20.8%
Daily chance of snow	0%

O'Neill September Weather Records 1893–2024
Highest temperature	107 °F	September 6, 1931
Lowest temperature	19 °F	September 28, 1899
Highest daily low	79 °F	September 1, 1922
Lowest daily high	42 °F	September 9, 2020
Hottest average high temperature	88.1 °F	1939
Coldest average high temperature	63.4 °F	1965
Most daily precipitation	5.8 inches	September 16, 1986
Most monthly precipitation	8.1 inches	1986
Most daily snow	1.5 inches	September 20, 1934
Most monthly snow	1.5 inches	1934

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
September 1	82.4	55.9	102	39
September 2	82.2	55.7	102	39
September 3	82.1	55.4	102	30
September 4	81.7	55.1	102	38
September 5	81.3	54.7	104	35
September 6	80.9	54.2	107	31
September 7	80.4	53.7	103	37
September 8	79.9	53.2	102	37
September 9	79.3	52.7	106	36
September 10	78.9	52.2	104	33
September 11	78.4	51.6	99	26
September 12	77.9	51.1	102	29
September 13	77.6	50.6	100	32
September 14	77.2	50.2	99	32
September 15	76.8	49.7	99	26
September 16	76.5	49.2	95	28
September 17	76.0	48.8	97	23
September 18	75.5	48.3	100	23
September 19	75.0	47.8	98	24
September 20	74.4	47.3	95	31
September 21	73.7	46.8	97	24
September 22	73.3	46.4	95	24
September 23	72.8	46.0	95	30
September 24	72.4	45.6	92	25
September 25	72.1	45.2	95	20
September 26	71.6	44.6	97	27
September 27	71.2	44.2	96	27
September 28	70.8	43.8	91	19
September 29	70.3	43.3	93	20
September 30	69.8	42.8	91	24

Weather Station Details

Years	Station	Coordinates
1893–2024	O'Neill	location