-5 to 27°C
temperature
2670 hours
sunshine per day
295 mm
rain
218 days
dry
103 days
rain
44 days
snow

Climate of Royal

Royal has a continental climate. In the summer it is warm and wet, and in the winter it is cold and dry. The average annual temperature for Royal is 13° degrees and there is about 295 mm of rain in a year. It is dry for 206 days a year with an average humidity of 76% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between -5°C and 27°C
  • Night:the average nighttime temperature is between -12°C and 17°C
  • Rain: it rains 103 days and there is a total of approximately 295 mm rainfall
  • Snow: it snows an average of 44 days per year
  • Sun hours: throughout the year there are 2670 sun hours
Maximum temperature: between -5°C and 27°C
Warmest month: 27°C in July
Coldest month: -5°C in January
Night temperature: between -12°C and 17°C
Dry days: 218 days
Days with rain: 103 days
Days with snow: 44 days
Total rain sum: 295 mm
Hours of sunshine: 2670 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Royal.

Precipitation graph

This graph shows the average amount of rainfall per month for Royal.

Climate table of Royal

In this climate table you can see at a glance what the average weather per month is for Royal. 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 Royal might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) -5 -3 6 13 20 25 27 26 23 14 6 -2
Night temp. (°C) -12 -10 -2 4 11 16 17 16 12 6 -1 -8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 10 13 21 26 38 47 31 29 23 27 11 19
Days with rain 3 3 8 12 14 14 12 11 9 9 4 4
Days with snow 10 10 7 2 - - - - - 1 4 10
Dry days 18 15 16 16 17 16 19 20 21 21 22 17
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 5 6 8 9 10 11 10 9 6 5 4
Wind force (Bft) 3 3 3 3 3 3 3 3 3 3 3 3
UV-index 1 1 3 3 5 6 6 5 4 3 2 2

Best time to visit Royal

The best time to visit Royal in the state of Iowa is from May through September. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Royal is 27°C in July and the lowest is -5°C in January.

Climate of Royal by month

What is the average climate in a given month for Royal? 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.

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