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Durham September Weather

Averages and records for weather in Durham, New Hampshire in the month of September.

Typical Durham September Weather 1991–2020
Average daily high	74.4 °F
Average daily low	50.7 °F
Average monthly precipitation	3.8 inches
Average monthly snow	none
Daily chance of precipitation	31.7%
Daily chance of snow	0%

Durham September Weather Records 1893–2024
Highest temperature	99 °F	September 2, 1953
Lowest temperature	21 °F	September 30, 1941
Highest daily low	71 °F	September 1, 2013
Lowest daily high	48 °F	September 27, 1939
Hottest average high temperature	82.5 °F	1941
Coldest average high temperature	64.8 °F	1912
Most daily precipitation	6.5 inches	September 11, 1954
Most monthly precipitation	11.1 inches	2008
Most daily snow	none	-
Most monthly snow	none	-

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	79.2	54.6	94	35
September 2	78.9	54.3	99	35
September 3	78.7	54.0	96	34
September 4	78.5	53.9	94	35
September 5	78.2	53.5	92	36
September 6	77.9	53.2	92	34
September 7	77.6	52.8	95	30
September 8	77.4	52.7	97	35
September 9	77.1	52.5	96	32
September 10	76.7	52.3	95	33
September 11	76.2	51.9	95	31
September 12	75.8	51.6	93	29
September 13	75.5	51.3	93	32
September 14	75.2	51.2	91	30
September 15	74.8	51.0	94	28
September 16	74.3	50.6	97	29
September 17	73.9	50.2	93	30
September 18	73.4	49.9	92	30
September 19	73.0	49.5	92	28
September 20	72.6	49.1	93	24
September 21	72.1	48.8	95	26
September 22	71.6	48.3	95	25
September 23	71.2	47.8	96	21
September 24	70.9	47.4	88	25
September 25	70.5	47.0	89	25
September 26	70.2	46.7	92	25
September 27	69.9	46.4	89	24
September 28	69.4	46.0	87	25
September 29	69.0	45.6	86	27
September 30	68.6	45.2	87	21

Weather Station Details

Years	Station	Coordinates
1893–2024	Durham	location