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United States weather

Weather in Harris County, Texas for January 2026

Your guide to Harris County weather in January - trends and predictions

    Official Weather Alert ⚠️

  • Cold Weather Advisory - See hour by hour.

    • Snow Forecast ❄️

  • With an average of 2 snowy days, Harris County usually enjoys a light touch of snow in January.
    According to Harris County snow forecast for January 2026, no snow is expected until the end of the month.

    • Temperatures

  • So far, January 2026 in Harris County is slightly warmer than the historical average by 0.7 °F.

  • The forecast for the next days in Harris County predicts the temperature to be 18.8 °F, significantly warmer than the historical average.

  • In general, the average temperature in Harris County at the beginning of January is 19.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.3 °F by the end of January.

    • Rain 🌧️

  • Harris County in January brings notable rainfall, with an average of 19 rainy days and a total precipitation of 138.7 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
10
Dry days
Average rainy days
19
Rainy days
Average snowy days
2
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
64 %
Avg humidity

Harris County Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
21°
2
Overcast
19°
3
Overcast
18°
4
Overcast
18°
5
Sunny
21°
6
Sunny
20°
7
Sunny
17°
8
Sunny
18°
9
Cloudy
16°
10
Overcast
16°
11
Overcast
16°
12
Cloudy
15°
13
Sunny
16°
14
Sunny
17°
15
Sunny
14°
16
Sunny
16°
17
Overcast
18°
18
Overcast
21°
19
Sunny
18°
20
Overcast
13°
21
Moderate rain at times
12°
22
Sunny
16°
23
Overcast
17°
24
Moderate or heavy rain shower
17°
25
Overcast
15°
26
Overcast
15°
27
Partly cloudy
15°
28
Partly cloudy
15°
29
Sunny
18°
30
Weather Alert Sunny
15°
31
Sunny
7°

Temperatures trend during January in Harris County

See the weather trend as well as the moving average line

January weather in Harris County day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Sunny
Sunny
 21° /12° 0.4 mm 0 cm
Jan. 2 Overcast
Overcast
 19° /10° 4.5 mm 0 cm
Jan. 3 Overcast
Overcast
 18° /10° 1.9 mm 0 cm
Jan. 4 Overcast
Overcast
 18° /10° 0 mm 0 cm
Jan. 5 Sunny
Sunny
 21° /11° 6.7 mm 0 cm
Jan. 6 Sunny
Sunny
 20° /10° 3 mm 0 cm
Jan. 7 Sunny
Sunny
 17° /10° 1.1 mm 0 cm
Jan. 8 Sunny
Sunny
 18° /11° 4.2 mm 0 cm
Jan. 9 Cloudy
Cloudy
 16° /10° 10.5 mm 0 cm
Jan. 10 Overcast
Overcast
 16° /7° 17.2 mm 0.1 cm
Jan. 11 Overcast
Overcast
 16° /7° 0.2 mm 0 cm
Jan. 12 Cloudy
Cloudy
 15° /7° 0.9 mm 0 cm
Jan. 13 Sunny
Sunny
 16° /7° 0 mm 0 cm
Jan. 14 Sunny
Sunny
 17° /6° 0 mm 0 cm
Jan. 15 Sunny
Sunny
 14° /6° 1.3 mm 0 cm
Jan. 16 Sunny
Sunny
 16° /6° 0.3 mm 0 cm
Jan. 17 Overcast
Overcast
 18° /7° 0.1 mm 0 cm
Jan. 18 Overcast
Overcast
 21° /10° 1.2 mm 0 cm
Jan. 19 Sunny
Sunny
 18° /8° 4.2 mm 0 cm
Jan. 20 Overcast
Overcast
 13° /6° 0.4 mm 0 cm
Jan. 21 Moderate rain at times
Moderate rain at times
 12° /7° 10.1 mm 1.7 cm
Jan. 22 Sunny
Sunny
 16° /8° 14.6 mm 0 cm
Jan. 23 Overcast
Overcast
 17° /9° 1.2 mm 0 cm
Jan. 24 Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /10° 22.5 mm 0 cm
Jan. 25 Overcast
Overcast
 15° /8° 4.9 mm 0 cm
Jan. 26 Overcast
Overcast
 15° /8° 4 mm 0 cm
Jan. 27 Partly cloudy
Partly cloudy
 15° /7° 0.2 mm 0 cm
Jan. 28 Partly cloudy
Partly cloudy
 15° /7° 1 mm 0 cm
Jan. 29 Sunny
Sunny
 18° /8° 7.3 mm 0 cm
Jan. 30 Sunny
Sunny
 15° /4° 0 mm 0 cm
Jan. 31 Sunny
Sunny
 7° /1° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Harris County in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Harris County forecast closer to your planned date for the most up-to-date weather information.
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Harris County in January - FAQ

What are the expected maximum and minimum temperatures in Harris County during January?

Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Harris County during January?

Significant rainfall exceeding 138.7 mm is expected in Harris County during January, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Harris County in January 2026?

Harris County experiences an average snowfall of 2.256 cm during January, occurring over 2 days.

What are the typical wind conditions in Harris County during January?

The average wind speed in Harris County during January is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Harris County snow forecast January 2026

Track daily snowfall levels and discover Harris County’s snowy potential this January ❄️
On average, Harris County sees 2 snowy days during January, with approximately 2.3 cm of total snowfall.

January rainfall patterns in Harris County

Explore the daily rainfall trends and prepare for Harris Countys January weather 💧
Typically, Harris County has 19 rainy days in January with a total of 138.7 mm of rainfall.

UV exposure in Harris County during January

Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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Location coordinates Where is Harris County?

Get accurate weather forecasts for Harris County, located at latitude 29.763 and longitude -95.363. Stay updated with localized weather information tailored for Harris County.

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