Rochester (NY) monthly weather averages

Average daytime temperature

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

Rochester average temperature chart (Celsius) Rochester average temperature chart (Fahrenheit)
Average monthly temperatures in Rochester (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -0.8 -0 5.6 12.9 19.4 24.1 26.9 25.5 21.8 15.5 8.7 1.9
°F 30.6 32 42 55.2 66.9 75.3 80.4 77.9 71.2 59.9 47.6 35.5

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.

Rochester monthly rainfall chart (mm) Rochester monthly rainfall chart (inches)
Average monthly rainfall in Rochester (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 51 51 59 69 70 77 70 83 76 67 74 65
inches 2 2 2.3 2.7 2.8 3 2.7 3.3 3 2.6 2.9 2.5
Rainy days 17 15 14 13 12 11 10 11 11 13 15 18

Average annual rainfall in Rochester: 776.3mm (305.6 inches)

Average daily sunshine

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

Rochester average daily sunshine chart
Average daily sunshine Rochester
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.9 4.6 6.1 7.7 9.1 10.5 10.8 9.4 7.5 5.4 3.1 2.8

Day / night temperatures

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

Rochester average minimum / maximum temperatures (Celsius) Rochester average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Rochester (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -9.1 -9 -3.8 2.1 7.7 12.5 15.5 14.5 11 5.3 0.6 -5.5
Max °C -0.6 0.2 5.8 13.2 19.7 24.4 27.2 25.8 22.1 15.8 8.9 2.1
Min °F 15.7 15.8 25.2 35.7 45.9 54.4 59.8 58 51.7 41.5 33 22.1
Max °F 23.4 24.1 33.8 45.7 56.7 65.1 70.3 68.2 61.7 50.9 40.5 28.9

Sea temperature

The graph below shows the average sea temperature.

Rochester average sea temperature chart (Celsius) Rochester average sea temperature chart (Fahrenheit)
Average sea temperature around Rochester in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.3 2.4 2.4 3.5 6.6 13.5 19.8 21.7 19.3 14 9 5.2
°F 38 36.4 36.3 38.2 43.8 56.2 67.7 71 66.7 57.2 48.3 41.3

Wind speed

The graph below shows the average wind speed.

Rochester average winspeed by month (km/h) Rochester average winspeed by month (mph)
Average wind speed in Rochester (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 20 19 19 18 16 14 14 13 14 15 18 18
mph 12 12 12 11 10 9 9 8 9 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.

Rochester relative humidity averages
Average relative humidity in Rochester
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 74% 71% 67% 67% 70% 70% 74% 77% 75% 76% 78%