Roslyn (NY) monthly weather averages

Contents

Average daytime temperature

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

Roslyn average temperature chart (Celsius) Roslyn average temperature chart (Fahrenheit)
Average monthly temperatures in Roslyn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3 4.2 8.8 14.7 20.1 25.1 28.1 27.5 23.6 17.9 11.8 5.8
°F 37.4 39.6 47.9 58.4 68.1 77.1 82.6 81.5 74.5 64.2 53.2 42.5

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.

Roslyn monthly rainfall chart (mm) Roslyn monthly rainfall chart (inches)
Average monthly rainfall in Roslyn (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 88 81 101 105 103 91 96 97 89 83 101 99
inches 3.5 3.2 4 4.1 4.1 3.6 3.8 3.8 3.5 3.3 4 3.9
Rainy days 10 10 11 10 11 10 9 9 8 7 10 11

Average annual rainfall in Roslyn: 1100.667mm (433.3 inches)

Average daily sunshine

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

Roslyn average daily sunshine chart
Average daily sunshine Roslyn
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.9 6.6 7.7 8.4 8.9 9.4 9.3 9.2 7.9 7.4 5.6 5.1

Day / night temperatures

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

Roslyn average minimum / maximum temperatures (Celsius) Roslyn average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Roslyn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -5 -4.2 -0 4.7 9.9 15.1 18.7 18.3 14.4 8.3 3.6 -1.8
Max °C 3.2 4.4 9.1 14.9 20.3 25.3 28.4 27.7 23.9 18.1 12 6
Min °F 23 24.4 31.9 40.5 49.8 59.2 65.6 64.9 57.8 46.9 38.5 28.8
Max °F 30.4 32.2 40.1 49.6 59.2 68.4 74.3 73.4 66.4 55.8 46 35.8

Sea temperature

The graph below shows the average sea temperature.

Roslyn average sea temperature chart (Celsius) Roslyn average sea temperature chart (Fahrenheit)
Average sea temperature around Roslyn in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.8 4.9 4.8 6.9 11.2 17 21.8 22.8 20.6 16.8 12.9 9.6
°F 44.2 40.8 40.6 44.4 52.2 62.5 71.3 73 69.1 62.3 55.2 49.2

Wind speed

The graph below shows the average wind speed.

Roslyn average winspeed by month (km/h) Roslyn average winspeed by month (mph)
Average wind speed in Roslyn (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 21 22 22 21 19 18 17 17 17 18 20 21
mph 13 14 14 13 12 11 10 10 11 11 13 13

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.

Roslyn relative humidity averages
Average relative humidity in Roslyn
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
65% 64% 63% 62% 68% 70% 70% 72% 72% 69% 68% 67%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Roslyn weather stats

Roslyn weather statistics
Hottest month: July 28.1°C 82.6°F
Driest month: February 81mm 3.2ins
Sunniest month: August 9.2hrs
Coldest month: January 3°C 37.4°F
Wettest month: April 105mm 4.1ins
Warmest sea: August 22.8°C 73°F
Map showing location of Roslyn (40.79982, -73.65096) Roslyn map pin © Google

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