Climate averages 1991–2020
McKinney 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 McKinney: daytime highs average 23.1°C and nights cool to about 13.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 118 mm of rain on roughly 9 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 Allen (12 km away). In April its highs average 23.3°C, about as warm as McKinney, with 110 mm of rain.
Among the 498 cities listed in the United States, McKinney ranks joint 124th of 498 for the warmest April highs and joint 455th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; McKinney is 3.8°C warmer than that mean.
From April to May, average highs rise by 3.9°C to 27.1°C, and monthly rainfall rises from 118 mm to 144 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
McKinney climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.2°C3.0°C | 3.0°C | 70 | 6.8 | 10.210 h |
| February | 14.7°C5.0°C | 5.0°C | 74 | 7.6 | 11.011 h |
| March | 18.8°C8.9°C | 8.9°C | 105 | 9.4 | 12.012 h |
| April, selected | 23.1°C13.1°C | 13.1°C | 118 | 9.1 | 13.013 h |
| May | 27.1°C18.1°C | 18.1°C | 144 | 11.5 | 13.914 h |
| June | 31.2°C22.4°C | 22.4°C | 91 | 9.1 | 14.314 h |
| July | 33.8°C24.8°C | 24.8°C | 50 | 6.2 | 14.114 h |
| August | 33.9°C24.8°C | 24.8°C | 50 | 5.8 | 13.413 h |
| September | 30.0°C20.9°C | 20.9°C | 78 | 6.8 | 12.412 h |
| October | 24.4°C14.9°C | 14.9°C | 104 | 7.9 | 11.411 h |
| November | 17.9°C8.9°C | 8.9°C | 94 | 7.2 | 10.510 h |
| December | 13.1°C4.3°C | 4.3°C | 94 | 7.2 | 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
- Allen in AprilUnited States · 12 kmHigh 23.3°C · Low 13.3°C · 110 mm rain
- Frisco in AprilUnited States · 20 kmHigh 23.2°C · Low 13.1°C · 110 mm rain
- Plano in AprilUnited States · 21 kmHigh 23.3°C · Low 13.4°C · 110 mm rain
- Richardson in AprilUnited States · 30 kmHigh 23.5°C · Low 13.4°C · 110 mm rain
- Garland in AprilUnited States · 32 kmHigh 23.5°C · Low 13.4°C · 110 mm rain
- Carrollton in AprilUnited States · 37 kmHigh 23.7°C · Low 13.7°C · 103 mm rain
- Lewisville in AprilUnited States · 39 kmHigh 23.8°C · Low 13.7°C · 103 mm rain
- Mesquite in AprilUnited States · 48 kmHigh 23.7°C · Low 13.6°C · 110 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 McKinney) is explained once on the McKinney year overview and on the Sources, method and limits page.