Ellicott City (MD) monthly weather averages

Average daytime temperature

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

Ellicott City average temperature chart (Celsius) Ellicott City average temperature chart (Fahrenheit)
Average monthly temperatures in Ellicott City (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4.4 6.1 12 17.7 23.3 28.1 30.4 29.4 25.5 19.4 13.2 7
°F 39.9 43 53.7 63.9 74 82.6 86.7 85 78 67 55.7 44.6

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.

Ellicott City monthly rainfall chart (mm) Ellicott City monthly rainfall chart (inches)
Average monthly rainfall in Ellicott City (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 79 77 95 85 104 95 96 99 92 80 89 89
inches 3.1 3 3.7 3.3 4.1 3.7 3.8 3.9 3.6 3.1 3.5 3.5
Rainy days 10 10 10 11 11 10 10 10 8 8 9 9

Average annual rainfall in Ellicott City: 1042.7mm (410.5 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Ellicott City

Ellicott City average daily sunshine chart
Average daily sunshine Ellicott City
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.5 6.2 7.3 8.2 8.8 9.9 10 9.2 7.9 7.1 5.7 5

Day / night temperatures

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

Ellicott City average minimum / maximum temperatures (Celsius) Ellicott City average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Ellicott City (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -4.8 -3.6 1.1 5.8 11.4 16.4 19.2 18.5 14.6 7.9 3 -2
Max °C 4.6 6.4 12.3 18 23.6 28.4 30.7 29.7 25.8 19.7 13.4 7.2
Min °F 23.4 25.6 34 42.4 52.5 61.5 66.5 65.3 58.3 46.2 37.4 28.4
Max °F 31.8 34.5 44.1 53.4 63.5 72.3 76.8 75.4 68.4 56.8 46.8 36.7

Sea temperature

The graph below shows the average sea temperature.

Ellicott City average sea temperature chart (Celsius) Ellicott City average sea temperature chart (Fahrenheit)
Average sea temperature around Ellicott City in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1 -0.8 -0.1 3.7 9.4 16.4 21.9 23.4 21.1 16.1 10.6 5.2
°F 33.9 30.5 31.9 38.7 48.8 61.4 71.5 74.1 70 61.1 51 41.4

Wind speed

The graph below shows the average wind speed.

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

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.

Ellicott City relative humidity averages
Average relative humidity in Ellicott City
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
64% 62% 60% 59% 66% 68% 69% 71% 72% 70% 67% 66%

Other monthly averages

UV index Best time to go?

Ellicott City weather stats

Ellicott City weather statistics
Hottest month: July 30.4°C 86.7°F
Driest month: February 77mm 3ins
Sunniest month: July 10hrs
Coldest month: January 4.4°C 39.9°F
Wettest month: May 104mm 4.1ins
Warmest sea: August 23.4°C 74.1°F
Map showing location of Ellicott City (39.26733, -76.79831) Ellicott City map pin © Google

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