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Jamestown September Weather

Averages and records for weather in Jamestown, North Dakota in the month of September.

Typical Jamestown September Weather 1991–2020
Average daily high	70.9 °F
Average daily low	46.3 °F
Average monthly precipitation	2.1 inches
Daily chance of precipitation	25.1%

Jamestown September Weather Records 1948–2024
Highest temperature	105 °F	September 2, 1983
Lowest temperature	18 °F	September 26, 1965
Highest daily low	72 °F	September 3, 2015
Lowest daily high	37 °F	September 30, 1961
Hottest average high temperature	79.4 °F	1948
Coldest average high temperature	56.1 °F	1965
Most daily precipitation	2.9 inches	September 1, 1992
Most monthly precipitation	5.5 inches	2019

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	76.6	52.0	101	35
September 2	76.4	51.8	105	35
September 3	76.1	51.5	98	32
September 4	75.7	51.1	97	35
September 5	75.4	50.8	105	32
September 6	74.9	50.5	101	32
September 7	74.4	50.1	96	36
September 8	73.8	49.6	102	32
September 9	73.4	49.1	91	29
September 10	73.0	48.7	99	28
September 11	72.7	48.3	95	27
September 12	72.3	47.9	94	32
September 13	71.8	47.5	88	27
September 14	71.4	47.0	88	27
September 15	71.0	46.5	99	28
September 16	70.6	46.1	94	23
September 17	70.2	45.6	92	26
September 18	69.7	45.2	88	31
September 19	69.1	44.7	94	29
September 20	68.5	44.2	89	28
September 21	67.9	43.8	90	27
September 22	67.4	43.4	86	24
September 23	67.0	43.0	92	24
September 24	66.6	42.6	85	23
September 25	66.1	42.0	92	24
September 26	65.7	41.6	92	18
September 27	65.3	41.2	97	25
September 28	64.8	40.8	91	23
September 29	64.3	40.4	86	26
September 30	63.7	40.0	91	21

Weather Station Details

Years	Station	Coordinates
1948–2024	Jamestown Municipal Airport	location