Climate of Rock Island

Rock Island has a continental climate. In the summer it is warm and dry, and in the winter it is cold and wet. The average annual temperature for Rock Island is 13° degrees and there is about 250 mm of rain in a year. It is dry for 218 days a year with an average humidity of 67% and an UV-index of 4.

Climate averages for the whole year

Day: the average daily temperature during the day is between 0°C and 29°C
Night:the average nighttime temperature is between -6°C and 14°C
Rain: it rains 110 days and there is a total of approximately 251 mm rainfall
Snow: it snows an average of 32 days per year
Sun hours: throughout the year there are 3178 sun hours

Maximum temperature:	between 0°C and 29°C
Warmest month:	29°C in July
Coldest month:	0°C in January
Night temperature:	between -6°C and 14°C
Dry days:	223 days
Days with rain:	110 days
Days with snow:	32 days
Total rain sum:	251 mm
Hours of sunshine:	3178 hours

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

Do you want to go to Rock Island?

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

Booking.com

Temperature graph

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

Precipitation graph

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

Climate table of Rock Island

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	0	2	7	13	19	23	29	28	22	14	5	0
Night temp. (°C)	-6	-5	-1	2	6	9	13	14	10	5	-1	-6
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	34	27	29	18	18	13	7	5	9	26	26	39
Days with rain	11	11	14	12	10	6	4	4	5	11	12	10
Days with snow	7	8	4	-	-	-	-	-	-	-	3	10
Dry days	13	9	13	18	21	24	27	27	25	20	15	11
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	5	5	8	11	11	12	12	12	11	6	6	5
Wind force (Bft)	2	2	2	2	2	2	2	2	2	2	2	2
UV-index	2	2	3	3	5	5	6	5	4	3	2	2

Best time to visit Rock Island

The best time to visit Rock Island in the state of Washington is from May through September. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Rock Island is 29°C in July and the lowest is 0°C in January.

Climate of Rock Island by month

What is the average climate in a given month for Rock Island? 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