Rochester 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 4.1 4.2 6.5 9.2 12.7 15.7 17.2 16.9 14.4 11.3 6.9 5
°F 39.3 39.6 43.7 48.6 54.8 60.2 63 62.5 58 52.4 44.4 41

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 103 73 86 63 69 65 72 91 84 91 103 100
inches 4.1 2.9 3.4 2.5 2.7 2.6 2.9 3.6 3.3 3.6 4 3.9
Rainy days 21 17 20 17 17 16 15 17 18 19 20 19

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 1.7 2.5 3.5 4.9 6 6.3 5.7 5.5 4.2 3.2 2.4 1.6

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 -1 -1.2 -0.1 1.4 3.9 6.9 8.8 8.7 7 4.7 1.2 -0.2
Max °C 4.2 4.4 6.7 9.4 12.9 15.9 17.5 17.2 14.6 11.5 7 5.2
Min °F 30.2 29.9 31.9 34.5 39 44.4 47.8 47.6 44.6 40.5 34.2 31.7
Max °F 34.9 34.9 37.9 41.7 47.1 52.5 55.6 55.2 51.4 46.6 39.4 36.5

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 7.7 6.7 6.6 7.2 9 11.6 13.8 14.6 13.6 12.1 10.6 9.1
°F 45.8 44.1 43.8 44.9 48.3 52.8 56.8 58.3 56.4 53.7 51 48.3

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 19 18 20 18 17 16 15 14 16 17 18 19
mph 12 11 13 11 10 10 9 9 10 10 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.

Rochester relative humidity averages
Average relative humidity in Rochester
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
93% 91% 87% 84% 83% 84% 84% 86% 89% 91% 92% 93%

Other monthly averages

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Rochester weather stats

Rochester weather statistics
Hottest month: July 17.2°C 63°F
Driest month: April 63mm 2.5ins
Sunniest month: May 6hrs
Coldest month: January 4.1°C 39.4°F
Wettest month: January 103mm 4.1ins
Warmest sea: August 14.6°C 58.3°F
Map showing location of Rochester (55.3, -2.25)

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