Catonsville (MD) monthly weather averages

Average daytime temperature

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

Catonsville average temperature chart (Celsius) Catonsville average temperature chart (Fahrenheit)
Average monthly temperatures in Catonsville (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.

Catonsville monthly rainfall chart (mm) Catonsville monthly rainfall chart (inches)
Average monthly rainfall in Catonsville (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 Catonsville: 1042.7mm (410.5 inches)

Average daily sunshine

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

Catonsville average daily sunshine chart
Average daily sunshine Catonsville
  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.

Catonsville average minimum / maximum temperatures (Celsius) Catonsville average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Catonsville (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.

Catonsville average sea temperature chart (Celsius) Catonsville average sea temperature chart (Fahrenheit)
Average sea temperature around Catonsville 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.

Catonsville average winspeed by month (km/h) Catonsville average winspeed by month (mph)
Average wind speed in Catonsville (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.

Catonsville relative humidity averages
Average relative humidity in Catonsville
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?

Catonsville weather stats

Catonsville 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 Catonsville (39.27205, -76.73192) Catonsville map pin © Google

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