Climateby Month

Conroe, TX weather in December

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

December in Conroe: cool, with some rain. Highs 64°F, lows 44°F, about 9 days with rain. It is one of the coolest months in Conroe.

Normal high
64°F
Normal low
44°F
Wet days
9
4.1 in total
Muggy days
2
dew point 65°F+

How December changes from start to finish

Normal values at the start and end of December
December 1December 31
Normal high67°F62°F
Normal low47°F42°F
Chance of a wet day26%29%
Sunrise / sunset7:00 am / 5:20 pm7:18 am / 5:31 pm
Daylight10.3 h10.2 h

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

A typical December day

  1. 6 am49°Fdew point 45°F
  2. 9 am53°Fdew point 47°F
  3. Noon61°Fdew point 46°F
  4. 3 pm63°Fdew point 46°F
  5. 6 pm57°Fdew point 47°F
  6. 9 pm54°Fdew point 47°F

NOAA hourly normals (local standard time) from Houston Intercont Airport (24 mi away); average wind 8 mph; clear or few clouds in 28% of daytime hours, mostly cloudy or overcast in 59%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F9 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more2 of 31
  • Wet daysat least 0.01 in of rain or melted snow9 of 31
  • Notable rainat least 0.10 in6 of 31
  • Freezing nightslow 32°F or below5 of 31

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

Rain and snow in December

Normal precipitation is 4.1 in; a dry December brings about 2.7 in and a wet one about 4.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 0.1 in.

How December varies from year to year

  • Warmest December, 1991-20202015: average high 67°F
  • Coolest December2009: average high 54°F
  • Wettest December2018: 9.3 in
  • Driest December2012: 1.0 in
  • Highest reading83°F (December 26, 2015)
  • Lowest reading17°F (December 18, 1996)

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

December compared with November and January

NovemberDecemberJanuary
Normal high72°F64°F63°F
Normal low51°F44°F42°F
Wet days798
Comfortable days12910
Daylight10.6 h10.2 h10.4 h

Highs change by -8°F from November and -1°F into January.

Nearby alternatives in December

How Conroe ranks in December

  • Normal high86th warmest of 378 cities; 15th of 38 in Texas
  • Wet days157th driest of 378
  • Comfortable days101st most of 340

What to pack for Conroe in December

  • A rain jacket or umbrella – rain on about 9 days

Frost in December

The first fall frost typically comes around Dec 2; in 1 year in 10 it comes before Nov 11. All frost dates for Conroe.

Heating and cooling

December has 365 heating degree days and 21 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.

Questions

How cold is Conroe in December?

The normal high is 64°F and the normal low is 44°F. From 1991 to 2020 the coldest December reading was 17°F (December 18, 1996).

Does it rain a lot in Conroe in December?

About 9 days in December have at least 0.01 in of precipitation, and the normal total is 4.1 in. The wettest December in 1991-2020 was in 2018 (9.3 in); the driest was in 2012 (1.0 in).

Does it snow in Conroe in December?

Yes. Normal snowfall in December is 0.1 in.

Is December a good time to visit Conroe?

December ranks 6th of 12 months on our comfort score for Conroe (55 out of 100). It has about 9 comfortable days. The best months are March and April.

Where the numbers come from

  • Temperature, rain and frost dates: Conroe (USC00411956), 2.0 mi NW of the city center, 245 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall, snow depth, humidity and wind by hour and cloud cover: Houston Intercont Airport (USW00012960), 24 mi SSE of the city center, 95 ft (122 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: G Bush Intercontinental Airport/Houston Airport (722430-12960), 23 mi SSE of the city center, 90 ft (127 ft lower than the city). Hourly observations, 1991-2020.