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Nashua September Weather

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

Typical Nashua September Weather 1991–2020
Average daily high	74.8 °F
Average daily low	50.7 °F
Average monthly precipitation	4.0 inches
Average monthly snow	none
Daily chance of precipitation	30.6%
Daily chance of snow	0%

Nashua September Weather Records 1885–2024
Highest temperature	99 °F	September 2, 1953
Lowest temperature	23 °F	September 28, 1947
Highest daily low	72 °F	September 16, 1915
Lowest daily high	46 °F	September 29, 1907
Hottest average high temperature	81.9 °F	2015
Coldest average high temperature	67.6 °F	1888
Most daily precipitation	5.8 inches	September 16, 1932
Most monthly precipitation	11.5 inches	1954
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	79.3	55.1	96	36
September 2	79.0	54.7	99	36
September 3	78.7	54.4	95	35
September 4	78.4	54.2	95	38
September 5	78.1	53.9	91	36
September 6	77.8	53.5	91	36
September 7	77.5	53.2	95	31
September 8	77.3	52.9	95	33
September 9	77.1	52.7	95	33
September 10	76.7	52.4	95	33
September 11	76.4	52.0	95	32
September 12	76.0	51.6	89	31
September 13	75.6	51.3	90	32
September 14	75.3	51.1	95	31
September 15	75.0	50.8	96	30
September 16	74.6	50.5	96	27
September 17	74.1	50.1	94	32
September 18	73.8	49.8	93	30
September 19	73.4	49.3	91	29
September 20	72.9	49.0	93	27
September 21	72.5	48.6	93	28
September 22	72.1	48.2	97	27
September 23	71.6	47.7	97	26
September 24	71.2	47.2	90	25
September 25	70.9	46.7	92	25
September 26	70.6	46.4	90	25
September 27	70.3	46.2	90	24
September 28	69.8	45.9	89	23
September 29	69.4	45.3	86	25
September 30	68.9	44.9	85	24

Weather Station Details

Years	Station	Coordinates
1885–2024	Nashua 2 NNW	location