Climate averages 1991–2020
Plano weather
in April.
A warm, wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a warm month in Plano: daytime highs average 23.3°C and nights cool to about 13.4°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 110 mm of rain on roughly 8 days, which makes April a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 59 min on an average April day.
The nearest other city in this atlas is Richardson (8 km away). In April its highs average 23.5°C, about as warm as Plano, with 110 mm of rain.
Among the 498 cities listed in the United States, Plano ranks joint 118th of 498 for the warmest April highs and joint 409th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Plano is 4.0°C warmer than that mean.
From April to May, average highs rise by 3.9°C to 27.2°C, and monthly rainfall rises from 110 mm to 138 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Plano climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.5°C3.3°C | 3.3°C | 70 | 6.8 | 10.210 h |
| February | 14.9°C5.2°C | 5.2°C | 73 | 7.5 | 11.011 h |
| March | 19.0°C9.1°C | 9.1°C | 100 | 9.2 | 12.012 h |
| April, selected | 23.3°C13.4°C | 13.4°C | 110 | 8.4 | 13.013 h |
| May | 27.2°C18.2°C | 18.2°C | 138 | 11.1 | 13.814 h |
| June | 31.3°C22.6°C | 22.6°C | 86 | 8.4 | 14.314 h |
| July | 33.8°C24.9°C | 24.9°C | 46 | 5.9 | 14.114 h |
| August | 33.9°C24.9°C | 24.9°C | 53 | 5.3 | 13.413 h |
| September | 30.1°C21.0°C | 21.0°C | 71 | 6.2 | 12.412 h |
| October | 24.6°C15.1°C | 15.1°C | 99 | 7.8 | 11.411 h |
| November | 18.1°C9.1°C | 9.1°C | 93 | 7.0 | 10.510 h |
| December | 13.4°C4.6°C | 4.6°C | 91 | 7.1 | 10.010 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Richardson in AprilUnited States · 8 kmHigh 23.5°C · Low 13.4°C · 110 mm rain
- Allen in AprilUnited States · 10 kmHigh 23.3°C · Low 13.3°C · 110 mm rain
- Garland in AprilUnited States · 13 kmHigh 23.5°C · Low 13.4°C · 110 mm rain
- Frisco in AprilUnited States · 19 kmHigh 23.2°C · Low 13.1°C · 110 mm rain
- Carrollton in AprilUnited States · 19 kmHigh 23.7°C · Low 13.7°C · 103 mm rain
- McKinney in AprilUnited States · 21 kmHigh 23.1°C · Low 13.1°C · 118 mm rain
- Lewisville in AprilUnited States · 28 kmHigh 23.8°C · Low 13.7°C · 103 mm rain
- Dallas in AprilUnited States · 28 kmHigh 24.0°C · Low 13.9°C · 107 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Plano) is explained once on the Plano year overview and on the Sources, method and limits page.
Garland, Richardson and Allen lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.