Climate averages 1991–2020
Johns Creek weather
in April.
A mild, wet month: the 7th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Johns Creek: daytime highs average 21.5°C and nights cool to about 10.7°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 102 mm of rain on roughly 10 days, which makes April a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 01 min on an average April day.
The nearest other city in this atlas is Roswell (15 km away). In April its highs average 21.2°C, about as warm as Johns Creek, with 102 mm of rain.
Among the 498 cities listed in the United States, Johns Creek ranks joint 181st of 498 for the warmest April highs and joint 376th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Johns Creek is 2.1°C warmer than that mean.
From April to May, average highs rise by 4.3°C to 25.8°C, and monthly rainfall falls from 102 mm to 85 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
Johns Creek climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.6°C1.7°C | 1.7°C | 116 | 10.4 | 10.210 h |
| February | 12.8°C3.2°C | 3.2°C | 117 | 10.1 | 10.911 h |
| March | 16.8°C6.5°C | 6.5°C | 120 | 10.3 | 12.012 h |
| April, selected | 21.5°C10.7°C | 10.7°C | 102 | 9.6 | 13.013 h |
| May | 25.8°C15.5°C | 15.5°C | 85 | 9.8 | 13.914 h |
| June | 29.2°C19.8°C | 19.8°C | 104 | 13.6 | 14.414 h |
| July | 30.8°C21.8°C | 21.8°C | 104 | 14.6 | 14.214 h |
| August | 30.2°C21.4°C | 21.4°C | 104 | 12.6 | 13.413 h |
| September | 27.4°C18.5°C | 18.5°C | 91 | 8.6 | 12.412 h |
| October | 22.1°C12.6°C | 12.6°C | 86 | 7.2 | 11.411 h |
| November | 16.3°C6.8°C | 6.8°C | 99 | 8.5 | 10.410 h |
| December | 11.8°C3.3°C | 3.3°C | 117 | 10.3 | 9.910 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
- Roswell in AprilUnited States · 15 kmHigh 21.2°C · Low 10.4°C · 102 mm rain
- Sandy Springs in AprilUnited States · 20 kmHigh 21.3°C · Low 10.5°C · 102 mm rain
- Atlanta in AprilUnited States · 36 kmHigh 21.5°C · Low 10.3°C · 89 mm rain
- South Fulton in AprilUnited States · 65 kmHigh 21.9°C · Low 11.4°C · 85 mm rain
- Athens, United States in AprilUnited States · 76 kmHigh 22.3°C · Low 11.0°C · 93 mm rain
- Macon in AprilUnited States · 142 kmHigh 24.0°C · Low 12.3°C · 79 mm rain
- East Chattanooga in AprilUnited States · 150 kmHigh 21.0°C · Low 9.8°C · 120 mm rain
- Chattanooga in AprilUnited States · 152 kmHigh 21.2°C · Low 10.0°C · 120 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 Johns Creek) is explained once on the Johns Creek year overview and on the Sources, method and limits page.
Roswell lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.