Climate averages 1991–2020
Appleton weather
in May.
A mild, moderately wet month: the 5th warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Appleton: daytime highs average 18.5°C and nights cool to about 8.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 85 mm of rain on roughly 11 days, which makes May a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 45 min on an average May day.
The nearest other city in this atlas is Green Bay (42 km away). In May its highs average 18.5°C, about as warm as Appleton, with 86 mm of rain.
Among the 498 cities listed in the United States, Appleton ranks joint 461st of 498 for the warmest May highs and joint 248th of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Appleton is 5.3°C cooler than that mean.
From May to June, average highs rise by 5.5°C to 24.0°C, and monthly rainfall rises from 85 mm to 89 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Green Bay in MayUnited States · 42 kmHigh 18.5°C · Low 8.7°C · 86 mm rain
- Waukesha in MayUnited States · 140 kmHigh 18.9°C · Low 9.5°C · 95 mm rain
- Milwaukee in MayUnited States · 142 kmHigh 14.4°C · Low 9.4°C · 91 mm rain
- Madison in MayUnited States · 154 kmHigh 19.8°C · Low 9.6°C · 101 mm rain
- Racine in MayUnited States · 178 kmHigh 13.8°C · Low 9.6°C · 90 mm rain
- Kenosha in MayUnited States · 193 kmHigh 13.9°C · Low 9.7°C · 96 mm rain
- Waukegan in MayUnited States · 216 kmHigh 14.5°C · Low 10.1°C · 105 mm rain
- Rockford in MayUnited States · 228 kmHigh 20.4°C · Low 10.3°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 Appleton) is explained once on the Appleton year overview and on the Sources, method and limits page.