Climate of Rockville

Rockville has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Rockville is 18° degrees and there is about 632 mm of rain in a year. It is dry for 185 days a year with an average humidity of 75% and an UV-index of 4.

Climate averages for the whole year

Day: the average daily temperature during the day is between 4°C and 30°C
Night:the average nighttime temperature is between -4°C and 20°C
Rain: it rains 148 days and there is a total of approximately 633 mm rainfall
Snow: it snows an average of 18 days per year
Sun hours: throughout the year there are 2847 sun hours

Maximum temperature:	between 4°C and 30°C
Warmest month:	30°C in July
Coldest month:	4°C in January
Night temperature:	between -4°C and 20°C
Dry days:	199 days
Days with rain:	148 days
Days with snow:	18 days
Total rain sum:	633 mm
Hours of sunshine:	2847 hours

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

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Temperature graph

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

Precipitation graph

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

Climate table of Rockville

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	4	6	11	18	23	28	30	29	25	19	12	7
Night temp. (°C)	-4	-2	2	7	13	17	20	19	16	10	4	0
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	46	47	53	43	58	47	55	57	58	54	59	56
Days with rain	10	9	12	13	16	15	15	14	13	12	9	10
Days with snow	5	6	3	-	-	-	-	-	-	-	1	3
Dry days	16	13	16	17	15	15	16	17	17	19	20	18
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	5	5	7	9	9	11	11	11	9	6	6	5
Wind force (Bft)	3	3	3	3	2	2	2	2	2	2	2	2
UV-index	2	3	3	4	6	6	6	6	5	4	3	2

Best time to visit Rockville

The best time to visit Rockville in the state of Maryland is from April through October. In this period you have a warm temperature and little precipitation. The highest average temperature in Rockville is 30°C in July and the lowest is 4°C in January.

Climate of Rockville by month

What is the average climate in a given month for Rockville? 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