Rowlett, United States experiences average highs of 25°C (77°F) and lows of 15°C (59°F) throughout the year. Rainfall is moderate, averaging about 8 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
Rowlett, United States Weather & Climate 2026
Monthly climate averages for Rowlett, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Feb–Jun At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.3/10
Best: April, May, October
UV Index
6
High
Temperature 25°C / 15°C
Feels Like 25°C / 15°C
Rainy Days 8
Rainfall 92 mm
Sunshine 9 h
Humidity 67%
Wind Speed 20 km/h
Dew Point 14°C
Snow Days 1 days
Frost Days 3 days
Hottest Month
35°C
July
Avg Low26°C
Rain7days
Coldest Month
4°C
January
Avg High14°C
Rain7days
Driest Month
6days
September
Avg High32°C
Avg Low22°C
Windiest Month
24 km/h
April (Gusts 46)
Worst Time to Visit
Consider avoiding July, August due to extreme heat, oppressive humidity.
Sun Position
Sunrise 06:19
Daylight 14.3h
Sunset 20:37
Live conditions—
Rowlett on the map · live conditions
Rowlett, United States
- Continent
- Americas
- Country
- United States
- City
- Rowlett
- Population
- 60.2K
- Elevation
- 154 m
- Coordinates
- 32.90°, -96.56°
Seasonal Breakdown
Spring
Mar–May
Avg High 25°C
Avg Low 15°C
Rain 11 days/mo
2/3 best months
Summer
Jun–Aug
Avg High 34°C
Avg Low 25°C
Rain 8 days/mo
Autumn
Sep–Nov
Avg High 26°C
Avg Low 16°C
Rain 7 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 15°C
Avg Low 6°C
Rain 8 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 14°C / 4°C . Feb: 16°C / 6°C . Mar: 21°C / 11°C . Apr: 24°C / 14°C . May: 28°C / 19°C . Jun: 32°C / 23°C . Jul: 35°C / 26°C . Aug: 35°C / 26°C . Sep: 32°C / 22°C . Oct: 27°C / 17°C . Nov: 20°C / 11°C . Dec: 16°C / 7°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 67 mm. Feb: 92 mm. Mar: 110 mm. Apr: 150 mm. May: 150 mm. Jun: 86 mm. Jul: 45 mm. Aug: 85 mm. Sep: 60 mm. Oct: 110 mm. Nov: 77 mm. Dec: 68 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 67%. Feb: 70%. Mar: 67%. Apr: 68%. May: 73%. Jun: 70%. Jul: 62%. Aug: 61%. Sep: 63%. Oct: 61%. Nov: 69%. Dec: 70%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 23 km/h . Mar: 24 km/h . Apr: 24 km/h . May: 21 km/h . Jun: 19 km/h . Jul: 18 km/h . Aug: 17 km/h . Sep: 16 km/h . Oct: 20 km/h . Nov: 20 km/h . Dec: 21 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 7h. Mar: 8h. Apr: 9h. May: 10h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 10h. Oct: 9h. Nov: 8h. Dec: 7h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 4. Mar: UV 6. Apr: UV 6. May: UV 7. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 4. Dec: UV 3.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 1 days. Feb: 1 days. Mar: 0 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 0 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 35°C | Jul · 35°C |
| Coldest month | Jan 2025 · 1°C | Jan · 4°C |
| Wettest month | Apr 2025 · 148 mm | Apr · 150 mm |
| Windiest month | Mar 2025 · 27 km/h | Apr · 24 km/h |
Month-by-Month Weather Table
January
Fair 
February
Fair March
Good April best
Excellent May best
Excellent June
Fair July
Poor August
Poor September
Good October best
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 14°C / 4°C | 11°C / 0°C | 7days (67 mm) Good | 7h Good | 67% Muggy | 3.6 Moderate | Fair | View Details |
| February | 16°C / 6°C | 14°C / 2°C | 9days (92 mm) Wet | 6.7h Fair | 70% Muggy | 4.4 Moderate | Fair | View Details |
| March | 21°C / 11°C | 20°C / 8°C | 10days (110 mm) Wet | 8.2h Good | 67% Muggy | 6 High | Good | View Details |
| April best | 24°C / 14°C | 24°C / 12°C | 11days (150 mm) Wet | 8.9h Good | 68% Muggy | 6.4 High | Excellent | View Details |
| May best | 28°C / 19°C | 30°C / 20°C | 12days (150 mm) Wet | 9.9h Good | 73% Muggy | 7.4 Very High | Excellent | View Details |
| June | 32°C / 23°C | 36°C / 26°C | 10days (86 mm) Wet | 11.8h Excellent | 70% Muggy | 8.1 Very High | Fair | View Details |
| July | 35°C / 26°C | 39°C / 29°C | 7days (45 mm) Good | 12.4h Excellent | 62% Muggy | 8 Very High | Poor | View Details |
| August | 35°C / 26°C | 38°C / 29°C | 7days (85 mm) Good | 11.4h Excellent | 61% Muggy | 7.9 Very High | Poor | View Details |
| September | 32°C / 22°C | 34°C / 24°C | 6days (60 mm) Good | 10.1h Excellent | 63% Muggy | 6.7 High | Good | View Details |
| October best | 27°C / 17°C | 27°C / 16°C | 7days (110 mm) Good | 8.9h Good | 61% Muggy | 5.5 High | Excellent | View Details |
| November | 20°C / 11°C | 19°C / 8°C | 7days (77 mm) Good | 7.6h Good | 69% Muggy | 4 Moderate | Good | View Details |
| December | 16°C / 7°C | 14°C / 4°C | 7days (68 mm) Good | 6.5h Fair | 70% Muggy | 3.4 Moderate | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Rowlett are April, May, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Rowlett, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Rowlett is July, with average daytime highs of 35°C (94°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Rowlett is January, with average overnight lows of 4°C (39°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Rowlett is April, averaging 150mm of precipitation across 11 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Rowlett runs through May, April, March, June, with the heaviest rainfall in May. Based on 10-year averages for Rowlett.
Rowlett receives approximately 109 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Rowlett.
The least favorable months to visit Rowlett are July, August, primarily due to extreme heat, oppressive humidity. For the best conditions, consider April, May, October instead.
The annual average UV index in Rowlett is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Rowlett is 67%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Rowlett receives snow. Months with snowfall average 1 snow days and 2 cm (1 in) of accumulation, with about 3 frost days during winter.
Average wind speeds in Rowlett are 20 km/h (12 mph). The windiest month is April with peak winds reaching 24 km/h (15 mph) (gusts up to 46 km/h / 28 mph).
Rowlett averages 8 clear-sky days per month with overall cloud cover around 49%. The clearest skies occur in October.
The annual average dew point in Rowlett is 14°C (57°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Rowlett has a Humid Subtropical climate, classified as Cfa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Rowlett ranges from 15°C (59°F) to 25°C (77°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Rowlett, with a climate score of 5.2/10. Consider visiting during April, May, October instead for better conditions.
For June in Rowlett, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 32°C (90°F) and 10 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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