Allen (TX) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Allen.
Climate overview of Allen
Allen, Texas, United States of America, sees big temperature differences between seasons, with August peaking at 36°C (97°F) and January dropping to 13°C (55°F).
Rain/snowfall is high, totalling around 1060 mm (42 in) per year. May is the wettest month and February the driest. The most sunshine falls in July, with an average of 11.1 hours of daily sunshine.
Allen Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Allen — and find the best time to visit.
Monthly Temperature in Allen
Visitors to Allen can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very hot 36°C (97°F) in August, the warmest time of the year, to a moderate 13°C (55°F) during cooler months like January.
At night, you can expect temperatures ranging from 24°C (75°F) in August to around 1°C (34°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Allen
Allen is known for its substantial rain/snowfall, with annual precipitation reaching 1060 mm (42 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, May it receives high rainfall, averaging 150 mm (5.9 in) of precipitation, recorded across 11 rainy days. In contrast, the driest month February brings less rainfall, with 52 mm (2 in) over 7 rainy days. For more details, please visit our Allen Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Allen
Seasonal changes in sunshine hours are quite dramatic in Allen. While July receives considerable daily sunshine with up to 11.1 hours, December marks the darkest time of the year, where sunshine is scarce with only 5.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Allen by Month
The relative humidity is high throughout the year in Allen.
The city experiences its highest humidity in May, reaching 70%. In July, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Allen
The weather does bring rainfall during this period, between 82 mm (3.2 in) and 123 mm (4.8 in). Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Allen
What is the best time to visit Allen?
March, April, May, October and November typically offer the most optimal weather in Allen. In contrast, July and August tend to have less optimal conditions.
What temperatures can I expect in Allen?
Daytime highs range from 13°C (55°F) in January to 36°C (97°F) in August. Nighttime lows range from 1°C (34°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Allen get?
Annual rainfall is around 1060 mm (42 in). May is the wettest month with 150 mm (5.9 in), while February is the driest with 52 mm (2 in).
How sunny is Allen?
Allen receives around 2,871 hours of sunshine per year. July is the sunniest month with 333 hours, while December is the cloudiest with just 175 hours. Overall, Allen enjoys abundant sunshine.
Allen 3-Day Forecast
Allen (TX) 3-Day Forecast
Allen on the map
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