Rockville (IN) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Rockville

Rockville average temperature chart (Celsius) Rockville average temperature chart (Fahrenheit)
Average monthly temperatures in Rockville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1.4 4.2 11.2 18.3 24 28.8 30.3 29.2 25.9 19.5 11.7 4.1
°F 34.5 39.6 52.2 64.9 75.2 83.8 86.6 84.6 78.7 67.2 53.1 39.3

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Rockville monthly rainfall chart (mm) Rockville monthly rainfall chart (inches)
Average monthly rainfall in Rockville (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 64 56 92 107 113 103 121 95 81 71 96 88
inches 2.5 2.2 3.6 4.2 4.4 4 4.8 3.7 3.2 2.8 3.8 3.5
Rainy days 11 10 13 12 11 9 9 9 8 8 10 12

Average annual rainfall in Rockville: 1038.1mm (408.7 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Rockville

Rockville average daily sunshine chart
Average daily sunshine Rockville
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5 5.7 6.5 7.9 9.5 10.8 10.7 9.9 8.6 7.2 4.6 4

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Rockville average minimum / maximum temperatures (Celsius) Rockville average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Rockville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -8.5 -6.3 -0.1 5.4 10.7 15.7 18 16.7 13 6.6 1.5 -4.9
Max °C 1.7 4.5 11.5 18.6 24.3 29.1 30.7 29.5 26.3 19.9 12 4.3
Min °F 16.8 20.7 31.8 41.7 51.3 60.3 64.3 62.1 55.3 43.8 34.6 23.2
Max °F 25.9 30.4 42.3 53.6 63.5 72.3 75.7 73.6 67.3 55.8 44.1 31.5

Sea temperature

The graph below shows the average sea temperature.

Rockville average sea temperature chart (Celsius) Rockville average sea temperature chart (Fahrenheit)
Average sea temperature around Rockville in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.9 7.2 7.3 8.6 11.2 15.8 20.8 23.1 21.3 16.6 12.4 9.5
°F 46.2 44.9 45.2 47.5 52.1 60.4 69.5 73.6 70.4 61.8 54.3 49.1

Wind speed

The graph below shows the average wind speed.

Rockville average winspeed by month (km/h) Rockville average winspeed by month (mph)
Average wind speed in Rockville (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 18 18 19 19 16 14 13 12 13 15 17 18
mph 11 11 12 12 10 9 8 8 8 9 11 11

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Rockville relative humidity averages
Average relative humidity in Rockville
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 73% 70% 66% 67% 67% 71% 74% 73% 70% 74% 77%

Other monthly averages

UV index Best time to go?

Rockville weather stats

Rockville weather statistics
Hottest month: July 30.3°C 86.5°F
Driest month: February 56mm 2.2ins
Sunniest month: July 10.7hrs
Coldest month: January 1.4°C 34.5°F
Wettest month: July 121mm 4.8ins
Warmest sea: August 23.1°C 73.6°F
Map showing location of Rockville (39.76254, -87.22918) Rockville map pin © Google

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