Allen, TX
Climate overview — based on NOAA 1991-2020 normals from MCKINNEY MUNI AP, TX US.
Year-round temperatures (°F)
Climate summary
Allen has an annual average temperature of 65°F with about 38.3 inches of precipitation per year. The warmest month is August (average high 95.5°F), and the coldest is January (average low 33.9°F). May is typically the wettest month (4.77 in) and August the driest (1.73 in).
Best time to visit Allen
Full guide →Climate change signal
All-time records →138 of 366 (37.7%) of Allen's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1990s | 49 | |
| 2000s | 103 | |
| 2010s | 115 | |
| 2020s | 99 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 55.5°F | 33.9°F | 44.7°F | 2.70 in | — | 6 |
| February | 59.7°F | 38.1°F | 48.9°F | 2.57 in | — | 7 |
| March | 67.5°F | 45.5°F | 56.5°F | 3.51 in | — | 9 |
| April | 74.7°F | 53.0°F | 63.9°F | 3.58 in | — | 9 |
| May | 82.8°F | 62.4°F | 72.6°F | 4.77 in | — | 11 |
| June | 90.7°F | 70.2°F | 80.5°F | 3.58 in | — | 8 |
| July | 95.0°F | 73.8°F | 84.4°F | 1.96 in | — | 5 |
| August | 95.5°F | 73.1°F | 84.3°F | 1.73 in | — | 5 |
| September | 88.3°F | 65.5°F | 76.9°F | 2.81 in | — | 7 |
| October | 77.9°F | 54.2°F | 66.0°F | 4.41 in | — | 8 |
| November | 66.2°F | 43.7°F | 54.9°F | 3.19 in | — | 8 |
| December | 57.1°F | 35.8°F | 46.5°F | 3.49 in | — | 7 |
Climate twins of Allen
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).