Climateby Month

Thornton, CO weather in February

NOAA 1991-2020 normals and daily records · Thornton all year

Expect chilly, mostly dry weather with some snow in Thornton in February, with highs near 48°F and lows near 19°F. Rain or snow falls on about 4 days. Snowfall averages about 7.6 in.

Normal high
48°F
Normal low
19°F
Wet days
4
0.5 in total
Snowfall
7.6 in
snow on the ground 9 days

How February changes from start to finish

Normal values at the start and end of February
February 1February 28
Normal high46°F51°F
Normal low18°F22°F
Chance of a wet day15%15%
Sunrise / sunset7:08 am / 5:18 pm6:34 am / 5:50 pm
Daylight10.2 h11.3 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).

A typical February day

  1. 6 am26°Fdew point 15°F
  2. 9 am33°Fdew point 17°F
  3. Noon42°Fdew point 16°F
  4. 3 pm43°Fdew point 17°F
  5. 6 pm36°Fdew point 18°F
  6. 9 pm31°Fdew point 18°F

NOAA hourly normals (local standard time) from Aurora Buckley Fld ANGB (16 mi away); average wind 9 mph; clear or few clouds in 33% of daytime hours, mostly cloudy or overcast in 52%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F3 of 28
  • Hot dayshigh 90°F or more0 of 28
  • Muggy daysdaily mean dew point 65°F or more0 of 28
  • Wet daysat least 0.01 in of rain or melted snow4 of 28
  • Notable rainat least 0.10 in2 of 28
  • Freezing nightslow 32°F or below26 of 28
  • Snow on the groundsnow depth 1 in or more9 of 28

Average days per February, counted from daily records for each year 1991-2020.

Rain and snow in February

Normal precipitation is 0.5 in; a dry February brings about 0.2 in and a wet one about 0.7 in (25th and 75th percentiles). Days with half an inch or more are rare. Normal snowfall is 7.6 in, with about 3 days of an inch or more.

How February varies from year to year

  • Warmest February, 1991-20201999: average high 56°F
  • Coolest February2010: average high 39°F
  • Wettest February2015: 2.2 in
  • Driest February1992: no measurable precipitation
  • Highest reading83°F (February 11, 2017)
  • Lowest reading-17°F (February 3, 2011)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

February compared with January and March

JanuaryFebruaryMarch
Normal high47°F48°F56°F
Normal low18°F19°F27°F
Wet days446
Comfortable days239
Daylight9.7 h10.7 h12.0 h

Highs change by +1°F from January and +8°F into March.

Nearby alternatives in February

How Thornton ranks in February

  • Normal high223rd warmest of 378 cities; 6th of 17 in Colorado
  • Wet days23rd driest of 378
  • Comfortable days191st most of 340

What to pack for Thornton in February

  • A warm jacket – lows near 19°F, highs near 48°F
  • Layers – afternoons near 48°F but nights near 19°F
  • Waterproof boots – about 7.6 in of snow in a typical year
  • A hat and gloves – about 26 freezing nights

Heating and cooling

February has 885 heating degree days and 0 cooling degree days (base 65°F), 13% of the year's total heating and cooling demand.

Questions

How cold is Thornton in February?

The normal high is 48°F and the normal low is 19°F. From 1991 to 2020 the coldest February reading was -17°F (most recently on February 3, 2011).

Does it rain a lot in Thornton in February?

About 4 days in February have at least 0.01 in of precipitation, and the normal total is 0.5 in. The wettest February in 1991-2020 was in 2015 (2.2 in); the driest was in 1992, with no measurable precipitation.

Does it snow in Thornton in February?

Yes. Normal snowfall in February is 7.6 in, and snow covers the ground on about 9 days.

Is February a good time to visit Thornton?

February ranks 10th of 12 months on our comfort score for Thornton (45 out of 100). It has about 3 comfortable days. The best month is May.

Where the numbers come from

  • Temperature, snowfall and snow depth: Denver-Stapleton (USW00023062), 9.1 mi SE of the city center, 5,286 ft (61 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Rain and frost dates: Northglenn (USC00055984), 3.1 mi NW of the city center, 5,407 ft (60 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Aurora Buckley Fld ANGB (USW00023036), 16 mi SE of the city center, 5,663 ft (316 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Denver International Airport (725650-03017), 17 mi E of the city center, 5,404 ft (57 ft higher than the city). Hourly observations, 1991-2020.