Coralville (IA) monthly weather averages

Average daytime temperature

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

Coralville average temperature chart (Celsius) Coralville average temperature chart (Fahrenheit)
Average monthly temperatures in Coralville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -2.7 0.4 7.5 16 22.5 27.5 29.6 28 23.9 17.5 8.4 -0.1
°F 27.1 32.7 45.5 60.7 72.4 81.4 85.3 82.4 75 63.4 47.1 31.9

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.

Coralville monthly rainfall chart (mm) Coralville monthly rainfall chart (inches)
Average monthly rainfall in Coralville (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 27 24 58 86 94 111 101 106 94 60 50 41
inches 1.1 0.9 2.3 3.4 3.7 4.4 4 4.2 3.7 2.4 2 1.6
Rainy days 8 8 10 11 12 10 10 9 9 8 9 9

Average annual rainfall in Coralville: 802.567mm (316 inches)

Average daily sunshine

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

Coralville average daily sunshine chart
Average daily sunshine Coralville
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.6 6.9 7.2 8.2 9.8 10.8 11 10.1 8.3 7.3 5 4.6

Day / night temperatures

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

Coralville average minimum / maximum temperatures (Celsius) Coralville average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Coralville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -12.3 -9.5 -2.8 4 10.3 15.5 18.1 16.5 12 5.5 -1.4 -9
Max °C -2.5 0.7 7.8 16.3 22.8 27.8 29.9 28.3 24.2 17.8 8.6 0.1
Min °F 9.9 15 27.1 39.1 50.5 59.8 64.6 61.7 53.6 41.8 29.5 15.9
Max °F 18.7 24.1 36.5 50.2 61.7 70.9 75.2 72.3 64.6 52.9 38.5 24.1

Sea temperature

The graph below shows the average sea temperature.

Coralville average sea temperature chart (Celsius) Coralville average sea temperature chart (Fahrenheit)
Average sea temperature around Coralville in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.4 8.1 8.5 9.7 11.5 13.8 16.9 20.1 18.9 14.9 11.8 9.7
°F 47.2 46.6 47.3 49.4 52.7 56.9 62.4 68.2 66 58.9 53.2 49.4

Wind speed

The graph below shows the average wind speed.

Coralville average winspeed by month (km/h) Coralville average winspeed by month (mph)
Average wind speed in Coralville (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 19 21 21 18 16 14 14 15 17 18 19
mph 12 12 13 13 11 10 9 9 9 11 11 12

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.

Coralville relative humidity averages
Average relative humidity in Coralville
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 72% 70% 65% 66% 67% 71% 73% 74% 69% 73% 76%

Other monthly averages

UV index Best time to go?

Coralville weather stats

Coralville weather statistics
Hottest month: July 29.6°C 85.3°F
Driest month: February 24mm 0.9ins
Sunniest month: July 11hrs
Coldest month: January -2.7°C 27.1°F
Wettest month: June 111mm 4.4ins
Warmest sea: August 20.1°C 68.2°F
Map showing location of Coralville (41.6764, -91.58045) Coralville map pin © Google

Locations nearby

Top United States locations