Fort Collins Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Fort Collins Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-12.293750000000003	1.1		-2.0624999999999996	6.5
	-10.712499999999999	3.4		0.69375	9.7
	-8.83125	0.7		2.0562500000000004	11.6
	-9.243749999999999	0.8		1.65625	12
	-9.36875	-1		1.4125000000000003	8.8
	-9.481250000000001	-1		1.4250000000000003	10.4
	-8.29375	-1.6		0.7375000000000003	6.5
	-8.51875	-2.2		2.4812499999999997	5.1
	-7.4625	-8.5		2.2375000000000003	-1.1
	-8.174999999999999	-7.5		2.78125	5.6
	-8.6625	-1.1		1.0374999999999999	10.5
	-9.518749999999999	-0.9		0.9124999999999998	11.8
	-8.762500000000001	1.8		1.3999999999999997	13.8
	-8.2875	1.4		1.6562500000000002	13
Jan.	-9.031250000000002	0.8		1.8687499999999997	14.3
	-6.906249999999999	-5.9		3.24375	2.3
	-5.906249999999999	-8.5		4.393750000000001	0.8
	-6.5125	-2.1		4.293749999999999	9.7
	-6.300000000000001	-5.9		2.993749999999999	5.4
	-7.462499999999999	-5		2.1750000000000003	11.1
	-6.78125	-5.8		3.40625	6
	-6.731250000000001	-8.9		2.6374999999999997	-0.8
	-6.95	-12.7		3.1374999999999997	-7
	-6.862500000000001	-14.6		2.6125	-8.7
	-6.7749999999999995	-15.1		2.8625	-7.4
	-7.056250000000001	-14.9		3.0625	6.6
	-7.362499999999999	-4.2		3.7312499999999993	7.2
	-7.312499999999999	-5.1		4.425000000000001	5.2
	-6.168750000000001	-3.6		4.406250000000001	6.7
	-5.6187499999999995	-5		5.3500000000000005	6.1
	-6.6000000000000005	-3.5		4.29375	8
	-7.025	-0.8		2.03125	10.2
	-8.025	1.1		3.2812500000000004	12
	-8.1625	-1.6		3.3249999999999997	8.2
	-9.075	-1.7		1.3687500000000001	8.1
	-8.424999999999999	1.2		2.7937499999999997	16.6
	-8.250000000000002	3.4		2.2687500000000003	14.3
	-8.16875	2.1		3.6000000000000005	14.2
	-7.875	2.5		3.2750000000000004	16.4
	-8.05	2.3		1.9249999999999998	10.9
	-8.68125	-0.9		2.03125	6.7
	-9.28125	0.1		1.3375	14.6
	-8.8375	0.8		1.3812500000000003	9.4
	-7.06875	0.3		4.8	10.2
	-6.95	-0.4		4.15625	11.1
Feb.	-7.468749999999999	-1.1		3.2875000000000005	13.6
	-7.7625	1		3.9062500000000004	15.6
	-7.1312500000000005	1.1		3.6437499999999994	10.1
	-8.1375	-0.6		3.5437499999999993	8.8
	-8.25	-6.1		3.3937500000000007	1
	-7.725	-8.3		2.7	-4.1
	-7.65625	-7.1		2.53125	6.6
	-8.53125	-6		2.21875	9.5
	-9.812500000000002	-1.9		1.1124999999999998	13.4
	-9.337499999999999	2		2.3937500000000003	17.5
	-10.131250000000001	2.5		2.35	16.5
	-9.5375	2.2		3.5875	13.4
	-8.462499999999999	-0.1		5.06875	15.9
	-7.112500000000001	1		5.325	13.1
	-6.175000000000001	1		6.125	13.7
	-6.08125	4.4		7.03125	17.1
	-4.906250000000002	2		7.762499999999999	7.9
	-6.29375	-1.9		5.86875	14.9
	-5.64375	0.8		6.44375	16
	-4.5375	-2.6		7.125000000000001	5.2
	-4.5625	-4.4		7.249999999999999	7.8
	-4.018750000000001	-0.4		7.50625	16.3
	-4.3062499999999995	4.4		8.16875	19.2
	-4.5125	2.6		8.981250000000001	19.4
	-3.8937500000000003	-0.3		9.368749999999999	8.6
	-2.8312500000000003	1.3		10.39375	17
	-2.6312499999999996	5.3		10.306250000000002	17.3
	-1.5125	5.5		10.174999999999999	20.8
Mar.	-1.88125	-5.4		10.76875	5.9
	-1.40625	-5.3		10.225000000000001	10
	-1.9375000000000004	4.9		10.593750000000002	20.1
	-3.04375	5.6		9.262500000000001	23.3
	-3.724999999999999	7.6		8.881250000000001	25.1
	-4.3	8.9		10.056249999999999	26.8
	-3.175	7.7		9.39375	29.1
	-2.0312500000000004	7.4		10.35625	16.5
	-1.75625	5.7		9.95625	19.9
	-3.3187499999999996	6		9.918750000000001	22.5
	-3.5437499999999993	10.7		9.53125	27.6
	-3.2812500000000004	5.2		10.281249999999998	17.6
	-2.275	2.9		10.69375	6.6
	-2.1125	2.2		11.45625	23.7
	-0.9125000000000001	10		12.168749999999998	24
	-0.8812499999999998	10.7		12.049999999999999	23.2
	-0.4125	4.2		11.843749999999998	13.1
	-0.38125	3.5		11.681250000000002	13.2
	-0.9312499999999999	2.6		12.537500000000003	23
	-1.8375	2.3		10.631250000000001	14.6
	-2.35625	0.5		10.575000000000001	19.8
	-1.375	-0.4		13.593749999999998	20.4
	-0.6062500000000001	1.4		12.518749999999999	20.2
	0.006250000000000089	-0.4		14.043750000000001	22.7
	0.80625	5.8		15.931249999999999	25.3
	0.38749999999999996	3.7		14.043749999999998	23.4
	-1.1500000000000001	3.4		12.918750000000001	17.7
	0.50625	4.8		16.037499999999998	24.7
	1.20625	3.5		15.399999999999999	25.3
	-0.10000000000000009	4.5		11.712499999999999	23.1
	-1.1749999999999998	7		11.81875	14.7
Apr.	-1.1	5.3		12.2375	22.2
	-0.47499999999999987	3.8		11.806249999999999	25.2
	-0.1187500000000001	0.6		11.5875	4.9
	-0.7874999999999999	-2		12.356249999999998	15.6
	-0.5437500000000001	-2.4		11.881250000000001	21.8
	-0.8125000000000002	5.7		11.60625	25.6
	0.21875000000000006	10.5		12.4375	27.4
	0.6937500000000001	10.6		13.38125	26.5
	1.08125	5.8		14.1625	16
	1.3624999999999998	1.8		14.0375	21.3
	1.1875000000000002	-2.1		14.662500000000003	12.2
	2.3124999999999996	1.6		15.48125	10.7
	3.0250000000000004	2.1		15.3375	13
	2.5187500000000003	3.9		15.400000000000002	15.5
	1.5687499999999999	1		13.4875	14.4
	1.5062499999999999	4.1		13.624999999999998	11.8
	1.7874999999999999	0.8		13.95625	17.2
	1.6624999999999999	1.7		13.656249999999998	21.6
	1.26875	7.8		15.806250000000004	23.5
	3.3937500000000003	8.8		16.781249999999996	21.2
	3.6062499999999997	0.7		17.98125	3.1
	4.6	-2.4		18.843749999999996	5.4
	5.075	-1		17.3375	20.5
	4.143749999999999	5.7		15.468749999999998	21.7
	2.9125	10		15.475	24.8
	2.9499999999999997	6.7		15.3375	23.8
	3.05625	6.3		14.51875	29.1
	2.4125	11.4		14.718750000000002	28.8
	3.46875	8.4		17.39375	30.2
	4.60625	15.3		17.93125	28.5
May	5.53125	11.9		17.656250000000004	28.2
	5.40625	12.3		18.84375	25.5
	5.9	8.1		18.91875	17.8
	5.9125	0.2		16.775	5.7
	5.15	3.1		16.2	10.3
	4.4437500000000005	5.8		15.9125	17.2
	4.56875	7.1		17.450000000000003	19.9
	5.0375	4.3		18.33125	19.2
	5.918750000000001	5.1		18.993750000000002	23.6
	5.7125	10.4		18.39375	26.5
	5.793749999999999	11.8		18.65	28.2
	6.637499999999999	11.5		19.7875	26.4
	7.4125	10.8		21.44375	21.4
	7.968750000000001	10.4		20.625	24.8
	7.75	12.5		20.1875	25.7
	7.31875	10.2		20.4	23.6
	7.881249999999999	8.4		22.5625	25.8
	8.331249999999999	10.3		22.2125	26.5
	8.525	12.1		23.599999999999998	28.9
	9.718750000000002	11.9		23.043750000000006	27.8
	10.387500000000001	12		24.862499999999997	31.4
	10.9125	13.7		23.99375	31
	10.8375	13.8		24.775000000000002	33.2
	10.599999999999998	15.3		24.968749999999996	33.4
	10.731250000000001	12.5		24.268750000000008	26.8
	10.44375	11		24.7	32.1
	11.125	12.4		26.581249999999997	29.3
	11.28125	10.9		24.468749999999996	28.1
	10.75625	8.5		24.162499999999998	32.4
	10.74375	12.2		26.3375	25.4
	11.524999999999999	12.2		26.237499999999997	23.3
Jun.	11.237500000000002	8.9		25.856250000000006	28.4
	11.749999999999998	9.9		27.087500000000002	33.6
	12.0875	13.8		25.29375	34.9
	11.531249999999998	8.1		26.031249999999996	30.2
	11.818750000000001	12.9		26.824999999999996	28.1
	11.768749999999997	12.3		26.16875	35.8
	11.693750000000001	11.8		25.625000000000007	32.3
	11.931249999999999	10.3		26.206250000000004	32.5
	11.475	13.3		25.4	29.7
	11.8625	14.6		26.506249999999998	30.9
	12.2	14		27.000000000000004	24.4
	13.049999999999999	11.4		27.718749999999996	29.7
	13.2	14.2		28.281250000000004	33.6
	13.3125	13.4		29.412499999999998	31.3
	13.549999999999999	12.9		28.7375	29.9
	13.125	12.5		26.574999999999996	31
	12.499999999999998	12.9		26.71875	32.1
	13.337499999999999	12.3		27.83125	32.3
	13.643749999999999	15.7		29.168750000000003	33.2
	13.95625	14.6		28.568749999999998	34.5
	14.037500000000001	14		27.856250000000003	35.7
	13.9125	16.9		27.518750000000004	35.6
	13.306249999999999	17.2		27.150000000000006	35.5
	13.825000000000001	17.5		26.693750000000005	33.1
	14.0875	13.9		29.237499999999997	31.5
	14.34375	12.7		29.2875	33.2
	14.1	14.3		29.46875	36.5
	14.475	16.7		28.55	39.3
	14.84375	17.5		29.949999999999996	37.7
	15.4375	17.4		29.33125	37.8
Jul.	14.437500000000002	16.8		27.975	35.3
	13.725000000000001	15.8		28.337500000000006	34.3
	14.268749999999997	16.3		29.999999999999996	35.5
	15.437500000000002	18.1		30.137500000000003	36.1
	15.9375	16.8		30.500000000000004	35.9
	15.625000000000004	19.8		29.337500000000002	39.1
	15.31875	20.3		29.84375	35.5
	15.16875	17.4		29.931250000000002	33.7
	16.025	19.6		29.9125	30.4
	15.63125	18.2		29.168750000000003	37.7
	15.893749999999997	19.6		29.506249999999994	39.5
	15.181250000000002	21.6		28.837500000000002	38
	14.8125	21.3		28.637499999999996	31.2
	15.0375	17.5		28.01875	33
	14.91875	16.9		27.43125	33
	14.40625	17.1		28	34.3
	14.03125	16.6		28.193749999999998	36.4
	14.325000000000001	15.7		28.800000000000004	37.3
	14.368749999999999	17.5		29.056250000000002	38.6
	14.956249999999997	20		27.2625	37.5
	14.524999999999997	13		29.5	25.3
	14.837499999999999	8.5		28.356250000000003	31.1
	14.287500000000001	13.3		28.143750000000008	37.2
	14.349999999999998	17.4		27.675	37.9
	14.149999999999999	17		27.956249999999997	37.7
	13.518750000000002	19.6		27.574999999999996	35.5
	13.406250000000002	18.6		27.424999999999997	35.3
	13.337500000000002	19.8		28.1	35.4
	14.4625	18.1		28.6375	35.1
	13.7	14.4		27.55	27.4
	14.025	13.2		27.93125	30.7
Aug.	13.91875	15.1		28.80625	29.4
	14.181249999999999	13		28.337500000000002	30.7
	13.768749999999999	14.2		28.581250000000004	34.1
	13.781250000000002		18.9	29.325		31.7
	14.075		17.9	27.943749999999998		33.1
	13.325000000000001		17.9	27.54375		33.7
	12.887499999999998		20.7	28.16875		36.8
	13.487499999999999		20.7	28.118750000000002		36.6
	13.88125		20.7	27.706249999999997		33.9
	13.799999999999999		18.8	27.875		33.2
	13.46875		16.8	27.356249999999996		32
	13.64375		13.5	26.693750000000005		27.2
	14.075		13.7	27.474999999999998		27.7
	13.512500000000001		13.7	27.331249999999997		27.2
	13.162500000000001		13	27.9625		27.5
	13.225000000000001		12.7	28.49375		28
	13.674999999999997		13.3	28.2875		27.8
	12.775		12.8	28.012500000000003		28.4
	13.2375		13.5	27.981250000000003		27.9
	13.381249999999996		13.3	27.468750000000007		27.6
	12.29375		12.2	27.6375		27.4
	12.49375		12.2	26.306250000000006		26.5
	11.931249999999999		12.1	25.856250000000003		26.1
	12.387500000000001		12	26.85625		26.3
	11.6125		10.5	26.806250000000002		25.9
	10.31875		10.4	24.925		24.4
	10.01875		10.2	22.575		23.6
	9.94375		10.5	23.037499999999998		23.3
	9.96875		9.9	24.39375		23.1
	10.2875		9.5	25.081249999999997		24.8
	10.137500000000001		10.4	23.474999999999998		24.4
Sep.	9.968750000000002		10.3	23.75625		23.8
	10.250000000000002		10.4	25.024999999999995		24.5
	10.7125		10.1	24.106249999999996		23.8
	9.7375			24.087500000000002
	10.25625			25.7
	9.91875			24.481250000000003
	9.1625			23.15
	9.05625			23.193750000000005
	8.937500000000002			21.568749999999998
	8.64375			22.9875
	8.75			23.331250000000004
	8.618749999999999			24.225
	9.9125			22.856250000000003
	9.024999999999999			21.718749999999996
	8.53125			21.656249999999996
	7.76875			21.725
	8.368749999999999			20.356250000000003
	7.075			19.96875
	6.46875			21.137499999999996
	6.2625			19.587500000000002
	5.618750000000001			17.993750000000002
	5.325000000000001			17.05625
	4.99375			17.61875
	4.95			17.9625
	4.5625			17.256249999999998
	4.3125			15.81875
	4.4375			18.0125
	4.55			15.674999999999999
	3.0562500000000004			15.85625
	2.5625000000000004			15.993749999999999
Oct.	2.8437500000000004			17.04375
	3.6812500000000004			17.1625
	3.65625			18.31875
	4.0375			16.543750000000003
	2.94375			16.325
	3.0375000000000005			16.66875
	3.6437500000000003			16.4625
	4.075			17.131249999999998
	3.9624999999999995			15.600000000000001
	3.1624999999999996			15.112499999999999
	2.2937499999999997			16.412499999999998
	1.1			12.037500000000001
	-1.5562499999999995			8.58125
	-2.30625			10.29375
	-0.9062499999999998			12.218749999999998
	-0.7500000000000001			10.25
	-1.35625			10.456249999999999
	0.7625000000000001			12.6625
	-0.4125000000000001			12.668749999999998
	0.6000000000000001			11.918750000000001
	-0.35625			11.4
	0.2874999999999999			12.23125
	-0.36875000000000013			11.40625
	-0.4125000000000001			11.225000000000001
	-0.8812500000000001			11.31875
	-1.26875			10.125000000000002
	-1.88125			9.9625
	-3.51875			6.018750000000001
	-4.956250000000001			6.425000000000001
	-3.3562499999999993			9.068750000000001
	-1.9999999999999996			10.125
Nov.	-1.8			9.66875
	-1.9562500000000007			9.7
	-3.1625000000000005			7.862500000000001
	-3.8562500000000006			8.4625
	-2.63125			8.999999999999998
	-2.9562500000000003			7.543749999999999
	-3.7499999999999996			7.15
	-2.04375			9.549999999999999
	-2.2812499999999996			8.25625
	-3.6187499999999995			6.643749999999999
	-4.35625			5.731250000000001
	-4.69375			6.11875
	-4.1812499999999995			6.762499999999999
	-4.39375			5.88125
	-4.937499999999999			4.875
	-5.425000000000001			3.6062499999999997
	-5.1499999999999995			5.2375
	-4.518750000000001			6.34375
	-4.81875			4.6
	-5.95625			4.699999999999999
	-6.525			4.5
	-6.762499999999999			3.725
	-5.3			4.606249999999999
	-5.2			4.99375
	-5.574999999999999			4.60625
	-5.825000000000001			5.40625
	-5.53125			4.999999999999999
	-5.01875			4.95625
	-4.381249999999999			4.793750000000001
	-4.574999999999999			3.8
Dec.	-5.812499999999999			3.24375
	-6.4625			3.5375
	-7.33125			2.90625
	-6.825000000000001			4.3625
	-5.787499999999999			4.09375
	-6.0125			4.7437499999999995
	-5.987499999999999			5.23125
	-6.168749999999999			3.3875
	-6.693750000000001			3.73125
	-6.637499999999999			3.506249999999999
	-6.925000000000001			2.925
	-7.34375			1.4312499999999997
	-8.662500000000001			1.6624999999999999
	-8.606250000000001			1.4312499999999997
	-8.631250000000001			0.7374999999999998
	-10.212499999999999			0.60625
	-10.84			-0.5866666666666666

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

40°C

Highest Temp

25 Jul. 26

-15°C

Lowest Temp

25 Jan. 26

Seasonal Breakdown

Hottest MonthJuly35.06°C

Coldest MonthJanuary-4.34°C

Wettest MonthMay3.59mm

Windiest MonthJune28.26km/h

Fort Collins Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in Fort Collins historically?

July is historically Fort Collins's hottest month, with average maximum temperatures around 29°C. During peak heatwave events, the highest recorded temperatures have reached 40°C on 2026-07-25.

2. What is the coldest month in Fort Collins historically?

February is Fort Collins's coldest month, with average minimum temperatures around -8°C. The all-time record low of -29°C was recorded on 2014-12-31.

3. What is the average annual rainfall in Fort Collins over the past 17 years?

Fort Collins's average annual rainfall is approximately 470.1mm, based on records spanning 17 years.

4. How many rainy days does Fort Collins experience on average per year?

Fort Collins historically records approximately 141.1 rainy days per year. May has the highest number of rain days at an average of 19.7 days.

5. What is the all-time highest temperature ever recorded in Fort Collins?

The all-time highest temperature recorded in Fort Collins is 40°C on 2026-07-25.

6. What is the all-time lowest temperature ever recorded in Fort Collins?

The all-time lowest temperature recorded in Fort Collins is -29°C on 2014-12-31.

7. What is the windiest time of year in Fort Collins historically?

Fort Collins experiences its strongest winds during April. The historic gust record of 61.6 kph was recorded on 2026-03-13.

8. What is the highest and lowest humidity in Fort Collins during a year?

Usually, Fort Collins's humidity peaks in February at around 64.3% and drops to its lowest in September at approximately 42.2%.

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Yearly Summary 2026

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Fort Collins Historic Weather Records
Analyse hottest, coldest, windiest & wettest days