Colorado September Weather

Colorado weather averages and all-time records in the month of September from 1991–2020 based on data made available by the NOAA.

State:

Month:

Statewide September Averages
High temperature	73.6 °F
Low temperature	44.2 °F
Precipitation	1.5 inches

Colorado Cities

September weather averages for various places in Colorado, from 1991–2020.

City	Average (°F)		Record (°F)		Monthly (inches)
City	High	Low	High	Low	Precipitation	Snow
Alamosa	74.3	37.0	89	15	1.0	0.5
Aspen	70.5	39.1	89	15	1.5	n/a
Bailey	70.7	35.3	91	7	1.4	1.2
Boulder	78.7	48.6	100	15	2.1	1.0
Burlington	81.0	50.3	104	20	1.3	0.1
Canon City	80.5	50.1	100	25	1.1	0.2
Castle Rock	77.2	46.1	101	11	1.4	0.5
Climax	57.1	31.5	82	6	1.8	4.2
Colorado Springs	76.4	48.4	98	22	1.3	0.2
Cortez	80.1	46.9	99	23	1.5	0.0
Crested Butte	66.5	31.3	87	3	1.9	1.0
Denver	79.2	49.5	101	17	1.0	0.8
Durango	76.6	43.3	95	20	1.8	n/a
Fort Collins	77.4	48.0	99	18	1.4	0.7
Fort Morgan	80.8	48.5	103	11	1.2	0.0
Glenwood Springs	79.3	44.2	100	20	1.6	0.0
Grand Junction	81.4	52.8	102	28	1.2	0.0
Great Sand Dunes National Park	71.9	43.7	87	22	1.3	0.0
Greeley	82.0	49.0	105	17	1.2	0.4
Gunnison	70.6	34.0	92	9	1.2	0.2
La Junta	84.3	52.7	108	22	0.8	n/a
Lamar	83.7	51.5	106	23	1.2	0.0
Las Animas	84.9	52.1	106	22	0.9	0.0
Leadville	63.5	31.6	82	8	1.1	0.7
Mesa Verde National Park	76.1	48.9	94	26	1.8	0.0
Monte Vista	73.1	36.5	88	15	1.0	0.6
Montrose	78.6	47.7	97	21	1.3	0.0
Pueblo	83.2	48.8	103	21	0.6	0.2
Steamboat Springs	73.1	35.2	93	6	2.3	0.4
Telluride	68.2	34.5	88	9	2.4	0.7
Trinidad	80.5	49.9	99	23	1.3	0.2
Vail	66.8	34.2	86	14	2.0	1.1