Longmont Weather History Colorado, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Mon 28 Apr, 2025 Weather in Longmont

Sunrise: 06:03 AM Sunset: 07:53 PM	Moonrise: 06:17 AM Moonset: 09:39 PM	Max: 20.1 °c	Min: 5.3 °c	Avg: 11.7 °c	Precip: 1.78 mm	Max Wind: 34.2 kph

	Mon 28 0:00 am	Mon 28 3:00 am	Mon 28 6:00 am	Mon 28 9:00 am	Mon 28 12:00 pm	Mon 28 3:00 pm	Mon 28 6:00 pm	Mon 28 9:00 pm
Icon
Temp	11.6°c	9.1°c	6.7°c	8.5°c	15.4°c	20.1°c	15.6°c	8.9°c
Wind	8.3 kmph	11.2 kmph	11.2 kmph	10.4 kmph	20.5 kmph	33.1 kmph	23.4 kmph	24.1 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	1.78 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	62%	57%	100%	100%	40%	0%	33%	16%
Humidity	41%	54%	73%	73%	29%	19%	20%	36%
Pressure	1003 mb	1005 mb	1011 mb	1010 mb	1007 mb	1007 mb	1009 mb	1014 mb

Longmont Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	4°C / 39°F	-7°C / 19°F	-2°C / 28°F	262 hours	18.95 mm / 0.75 In	5 days	1021 mb / 31 In
February	5°C / 40°F	-6°C / 20°F	-2°C / 29°F	233 hours	26.20 mm / 1.03 In	6 days	1018 mb / 31 In
March	11°C / 51°F	-2°C / 29°F	4°C / 39°F	253 hours	47.73 mm / 1.88 In	5 days	1015 mb / 30 In
April	15°C / 58°F	2°C / 35°F	8°C / 46°F	238 hours	70.41 mm / 2.77 In	7 days	1012 mb / 30 In
May	19°C / 66°F	7°C / 44°F	13°C / 55°F	236 hours	110.06 mm / 4.33 In	11 days	1012 mb / 30 In
June	27°C / 81°F	13°C / 56°F	20°C / 68°F	277 hours	53.95 mm / 2.12 In	8 days	1012 mb / 30 In
July	30°C / 86°F	16°C / 61°F	23°C / 73°F	287 hours	54.90 mm / 2.16 In	9 days	1015 mb / 30 In
August	30°C / 85°F	16°C / 60°F	22°C / 72°F	305 hours	30.86 mm / 1.22 In	7 days	1015 mb / 30 In
September	26°C / 79°F	12°C / 53°F	19°C / 65°F	299 hours	40.10 mm / 1.58 In	4 days	1015 mb / 30 In
October	17°C / 63°F	4°C / 39°F	10°C / 50°F	289 hours	37.40 mm / 1.47 In	4 days	1016 mb / 30 In
November	10°C / 51°F	-2°C / 28°F	3°C / 38°F	286 hours	25.42 mm / 1.00 In	4 days	1018 mb / 31 In
December	5°C / 40°F	-6°C / 21°F	-2°C / 29°F	272 hours	19.61 mm / 0.77 In	5 days	1019 mb / 31 In

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