Climate of Charleston

Charleston has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Charleston is 16° degrees and there is about 606 mm of rain in a year. It is dry for 183 days a year with an average humidity of 77% and an UV-index of 4.

Climate averages for the whole year

Day: the average daily temperature during the day is between -1°C and 28°C
Night:the average nighttime temperature is between -8°C and 19°C
Rain: it rains 140 days and there is a total of approximately 606 mm rainfall
Snow: it snows an average of 28 days per year
Sun hours: throughout the year there are 2744 sun hours

Maximum temperature:	between -1°C and 28°C
Warmest month:	28°C in July
Coldest month:	-1°C in January
Night temperature:	between -8°C and 19°C
Dry days:	197 days
Days with rain:	140 days
Days with snow:	28 days
Total rain sum:	606 mm
Hours of sunshine:	2744 hours

Climate of Charleston
Temperature graph
Precipitation graph
Climate chart of Charleston
The best travel time for Charleston
Climate of Charleston by month
Experiences with the weather of Charleston

Do you want to go to Charleston?

These are the travel companies where you can book a trip to Charleston:

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Temperature graph

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

Precipitation graph

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

Climate table of Charleston

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	-1	2	9	16	22	27	28	28	25	17	10	2
Night temp. (°C)	-8	-6	1	7	13	18	19	18	14	8	2	-4
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	27	36	50	73	77	78	50	49	40	51	43	32
Days with rain	6	5	13	15	18	17	15	12	11	12	9	7
Days with snow	9	7	4	1	-	-	-	-	-	-	1	6
Dry days	16	16	14	14	13	13	16	19	19	19	20	18
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	4	4	7	8	10	11	11	10	10	6	5	5
Wind force (Bft)	3	3	3	3	3	3	2	2	3	3	3	3
UV-index	2	2	3	4	5	6	6	6	4	3	2	2

Best time to visit Charleston

The best time to visit Charleston in the state of Iowa is from May through September. In this period you have a warm temperature and little precipitation. The highest average temperature in Charleston is 28°C in July and the lowest is -1°C in January.

Climate of Charleston by month

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

January