Climate averages 1991–2020
Appleton weather
in August.
A warm, moderately wet month: the 2nd warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Appleton: daytime highs average 25.3°C and nights cool to about 17.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 85 mm of rain on roughly 10 days, which makes August a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 02 min on an average August day.
The nearest other city in this atlas is Green Bay (42 km away). In August its highs average 25.6°C, about as warm as Appleton, with 87 mm of rain.
Among the 498 cities listed in the United States, Appleton ranks 468th of 498 for the warmest August highs and joint 291st of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Appleton is 4.6°C cooler than that mean.
From August to September, average highs fall by 4.1°C to 21.2°C, and monthly rainfall falls from 85 mm to 72 mm.
The annual picture
August in context
Monthly precipitation
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
Appleton climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -4.5°C-12.3°C | -12.3°C | 37 | 7.8 | 9.39 h |
| February | -2.6°C-11.1°C | -11.1°C | 34 | 6.3 | 10.410 h |
| March | 4.2°C-5.2°C | -5.2°C | 59 | 8.4 | 11.912 h |
| April | 11.4°C1.5°C | 1.5°C | 81 | 11.1 | 13.413 h |
| May | 18.5°C8.7°C | 8.7°C | 85 | 10.8 | 14.715 h |
| June | 24.0°C14.9°C | 14.9°C | 89 | 10.4 | 15.515 h |
| July | 26.4°C17.7°C | 17.7°C | 86 | 10.1 | 15.215 h |
| August, selected | 25.3°C17.1°C | 17.1°C | 85 | 9.9 | 14.014 h |
| September | 21.2°C13.0°C | 13.0°C | 72 | 9.0 | 12.613 h |
| October | 13.7°C6.3°C | 6.3°C | 72 | 9.5 | 11.011 h |
| November | 5.8°C-0.7°C | -0.7°C | 56 | 8.2 | 9.710 h |
| December | -1.1°C-7.7°C | -7.7°C | 45 | 7.2 | 8.99 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
August in nearby cities
- Green Bay in AugustUnited States · 42 kmHigh 25.6°C · Low 17.3°C · 87 mm rain
- Waukesha in AugustUnited States · 140 kmHigh 25.9°C · Low 18.1°C · 90 mm rain
- Milwaukee in AugustUnited States · 142 kmHigh 24.4°C · Low 20.0°C · 91 mm rain
- Madison in AugustUnited States · 154 kmHigh 26.1°C · Low 17.2°C · 95 mm rain
- Racine in AugustUnited States · 178 kmHigh 24.4°C · Low 20.8°C · 93 mm rain
- Kenosha in AugustUnited States · 193 kmHigh 24.5°C · Low 20.9°C · 94 mm rain
- Waukegan in AugustUnited States · 216 kmHigh 24.8°C · Low 21.0°C · 96 mm rain
- Rockford in AugustUnited States · 228 kmHigh 26.6°C · Low 17.7°C · 87 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 Appleton) is explained once on the Appleton year overview and on the Sources, method and limits page.