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Farmington September Weather

Averages and records for weather in Farmington, Maine in the month of September.

Typical Farmington September Weather 1991–2020
Average daily high	69.9 °F
Average daily low	45.2 °F
Average monthly precipitation	3.5 inches
Average monthly snow	none
Daily chance of precipitation	33.4%
Daily chance of snow	0%

Farmington September Weather Records 1893–2024
Highest temperature	100 °F	September 22, 1895
Lowest temperature	20 °F	September 30, 1980
Highest daily low	70 °F	September 8, 1999
Lowest daily high	45 °F	September 23, 1981
Hottest average high temperature	78.2 °F	1895
Coldest average high temperature	63.9 °F	1977
Most daily precipitation	4.4 inches	September 17, 1999
Most monthly precipitation	9.7 inches	1999
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	74.5	49.6	93	32
September 2	74.1	49.3	95	33
September 3	73.9	49.0	96	32
September 4	73.7	48.8	92	31
September 5	73.4	48.4	90	30
September 6	73.1	48.0	92	31
September 7	72.9	47.7	93	30
September 8	72.7	47.5	92	30
September 9	72.4	47.3	95	31
September 10	71.9	47.0	96	31
September 11	71.5	46.6	95	28
September 12	71.1	46.2	97	28
September 13	70.8	45.9	91	24
September 14	70.5	45.7	90	25
September 15	70.2	45.4	90	27
September 16	69.7	45.1	95	27
September 17	69.4	44.8	88	28
September 18	68.9	44.4	89	29
September 19	68.5	44.0	87	27
September 20	68.1	43.7	89	25
September 21	67.7	43.3	94	25
September 22	67.1	42.9	100	24
September 23	66.7	42.4	99	21
September 24	66.3	42.0	90	25
September 25	65.9	41.7	88	25
September 26	65.6	41.4	88	24
September 27	65.3	41.2	85	21
September 28	64.9	40.9	85	21
September 29	64.5	40.5	88	20
September 30	64.1	40.1	86	20

Weather Station Details

Years	Station	Coordinates
1893–2024	Farmington	location