Longmont weather in February

In February, Longmont sees average daytime highs of 44°F and overnight lows near 20°F, with 0.8 in of precipitation across 5.3 wet days and about 10.4 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 42°F in the first days to 47°F by the end. The sky is clear or mostly clear about 41% of the time in February, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of February to 11 hours by month's end. Set against the rest of the year, February is Longmont's 8th-clearest and 6th-windiest month. For the whole year in context, see Longmont's year-round climate.

Daytime high
44°
10th warmest
Overnight low
20°
3rd coldest
Precipitation
0.8 in
5.3 wet days
Daylight
10 h 24 min
7:02 AM – 5:28 PM
Cloud cover
50%
8th clearest
Wind
4 mph
6th windiest
Solar energy
3.81 kWh/m²
Travel score
1.0
out of 10

Longmont is city in Boulder County, Colorado, United States.

Density
1,228/km²
people per km²
Founded
1871

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 42°F in the first days to 47°F by the end.

A typical February day in Longmont reaches about 44°F in the afternoon and slips back to 20°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 28°F and 59°F. Set against its neighbours, February runs about 3°F warmer than January and about 10°F cooler than March.

20°40°60°151015202528
Avg high (°F)Avg low (°F)
14219
24219
34219
44219
54219
64219
74319
84319
94320
104320
114420
124420
134420
144420
154420
164520
174521
184521
194521
204621
214621
224621
234622
244722
254722
264722
274822
284823

How February really feels in Longmont

Once humidity and wind are folded in, February averages 0 days that feel above 90°F and 28 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
28
14 feel bitter (≤ 14°F)

The story in February is cold — wind chill drags the overnight "feels like" below the raw low.

Longmont weather by month

How February compares with the rest of the year at a glance. February is the 10th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 18°0.84.74.59.50.1
Feb44° / 20°0.85.3510.41.0
Mar54° / 27°1.67.34.411.73.6
Apr61° / 35°2.69.54135.0
May69° / 44°3.411.70.614.26.2
Jun80° / 53°2.18.5014.86.6
Jul86° / 59°1.77.4014.65.3
Aug84° / 57°1.66.8013.66.1
Sep76° / 49°1.55.90.412.37.6
Oct63° / 37°1.66.51.910.96.2
Nov50° / 27°1.15.84.49.82.7
Dec41° / 19°0.74.54.49.20.2

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in February.

Beyond those clear spells, partly cloudy skies cover about 17% of February, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
15842
25743
35743
45743
55743
65842
75842
85743
95842
105842
115842
125842
135842
145842
155842
165842
175842
185842
195842
205842
215842
225842
235842
245842
255941
265941
275941
285941

Chance of precipitation in February

Any precipitationSnow

Longmont gets around 0.8 in of rain and snow over 5.3 wet days in February. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 19% and peaks near 21% on the wettest days, and about 5 days bring snow.

0%10%20%30%151015202528
Rain chance (%)Snow chance (%)
11818
21919
31919
41919
51919
61919
71819
81818
91818
101818
111818
121818
131817
141817
151917
161917
171917
181917
192017
202017
212017
222017
232017
242117
252117
262117
272117
282117

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

Most of February feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, February lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202528
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100

Wind in February

Winds average 4 mph in February.

Across February, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202528
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm

Sunrise & sunset in February

DaylightNight

Daylight runs from about 9 h 54 min at the start of February to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over February. Sunrise moves from 7:17 AM to 6:45 AM, and sunset from 5:11 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:175:11
29.97:165:12
310.07:155:13
410.07:145:14
510.07:135:16
610.17:125:17
710.17:115:18
810.17:105:19
910.27:095:20
1010.27:085:22
1110.37:075:23
1210.37:065:24
1310.37:055:25
1410.47:045:26
1510.47:025:28
1610.57:015:29
1710.57:005:30
1810.56:595:31
1910.66:575:32
2010.66:565:33
2110.76:555:35
2210.76:535:36
2310.76:525:37
2410.86:515:38
2510.86:495:39
2610.96:485:40
2710.96:465:41
2811.06:455:43

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 3.81 kWh/m².

For context, solar energy here swings from a low near 2.42 kWh/m² to a high of 7.36 kWh/m² in June across the year — February's 3.81 kWh/m² falls in the middle.

012345151015202528
Solar energy (kWh/m²)Level
13.2Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.4Moderate
63.4Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.6Moderate
113.6Moderate
123.7Moderate
133.7Moderate
143.8Moderate
153.8Moderate
163.9Moderate
173.9Moderate
184.0Moderate
194.0Bright
204.1Bright
214.1Bright
224.2Bright
234.2Bright
244.3Bright
254.3Bright
264.4Bright
274.4Bright
284.5Bright
Planning a trip in February

Is February a good time to visit Longmont?

Our two travel scores rate February for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

1.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

February is a weaker month for outdoor sightseeing in Longmont.

What to pack for Longmont in February

From February's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In February, Longmont sees daytime highs around 44°F and nights near 20°F. Pack a warm layer and a heavy coat. About 5 days see rain.

a warm layera heavy coat

UV index in Longmont in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Longmont peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 13UV 11Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar7High
Apr6High
May7Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Longmont in February

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where February falls, not just the annual average.

Air quality in Longmont is worst in October — around 30 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (November, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodOct 1528 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar14Moderate
Apr11Good
May11Good
Jun12Good
Jul14Moderate
Aug19Moderate
Sep17Moderate
Oct30Moderate
Nov10Good
Dec11Good
Location & terrain

Where is Longmont?

Longmont sits at 40.2°N, 105.1°W, 4,984 ft above sea level, in United States. The nearest listed city is Erie, 8.7 mi away.

Topography around Longmont

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Longmont.

Within 2 miles, the terrain around Longmont has only modest variations in elevation — a maximum elevation change of 197 ft around an average of 4,993 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,765 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,721 ft.

The land around Longmont is covered by artificial surfaces (50%) and trees (22%) within 2 miles, grassland (54%) and cropland (25%) within 10 miles, and grassland (42%) and trees (31%) within 50 miles.

2 miles
197 ft
10 miles
1,765 ft
50 miles
9,721 ft
treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen
February weather nearby: Erie 8.7 mi · Lafayette 12 mi · Louisville 13 mi · Boulder 14 mi · Loveland 16 mi · Broomfield 17 mi · Brighton 19 mi · Northglenn 21 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Longmont (40.1672°, -105.1019°, elevation 4,984 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).