Besttimetovisit.co.nzClimate of Naperville
Naperville has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Naperville is 14° degrees and there is about 300 mm of rain in a year. It is dry for 187 days a year with an average humidity of 79% and an UV-index of 4.
Climate averages for the whole year
- Day: the average daily temperature during the day is between -2°C and 27°C
- Night:the average nighttime temperature is between -9°C and 18°C
- Rain: it rains 121 days and there is a total of approximately 301 mm rainfall
- Snow: it snows an average of 37 days per year
- Sun hours: throughout the year there are 2597 sun hours
| Maximum temperature: | between -2°C and 27°C |
| Warmest month: | 27°C in July |
| Coldest month: | -2°C in January |
| Night temperature: | between -9°C and 18°C |
| Dry days: | 207 days |
| Days with rain: | 121 days |
| Days with snow: | 37 days |
| Total rain sum: | 301 mm |
| Hours of sunshine: | 2597 hours |
Do you want to go to Naperville?
These are the travel companies where you can book a trip to Naperville:
Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Naperville.
Precipitation graph
This graph shows the average amount of rainfall per month for Naperville.
Climate table of Naperville
In this climate table you can see at a glance what the average weather per month is for Naperville. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Naperville might be like in a given month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day temp. (°C) | -2 | 0 | 7 | 14 | 21 | 26 | 27 | 27 | 23 | 16 | 8 | 1 |
| Night temp. (°C) | -9 | -7 | -1 | 5 | 11 | 16 | 18 | 17 | 14 | 8 | 1 | -5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Precipitation (mm) | 14 | 17 | 20 | 26 | 28 | 38 | 36 | 40 | 21 | 28 | 16 | 17 |
| Days with rain | 4 | 4 | 9 | 12 | 13 | 14 | 16 | 15 | 11 | 10 | 7 | 6 |
| Days with snow | 11 | 9 | 5 | 2 | - | - | - | - | - | - | 2 | 8 |
| Dry days | 16 | 15 | 17 | 16 | 18 | 16 | 15 | 16 | 19 | 21 | 21 | 17 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Sun hours per day | 4 | 4 | 6 | 8 | 9 | 10 | 10 | 10 | 9 | 6 | 5 | 4 |
| Wind force (Bft) | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
| UV-index | 1 | 2 | 3 | 3 | 5 | 6 | 6 | 6 | 4 | 3 | 2 | 2 |
Best time to visit Naperville
The best time to visit Naperville in the state of Illinois is from May through September. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Naperville is 27°C in July and the lowest is -2°C in January.
Climate of Naperville by month
What is the average climate in a given month for Naperville? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Naperville weather experiences
Have you been to in Naperville?
Leave your Naperville weather experience for a chance to win $150!