Grayson (KY) monthly weather averages

Average daytime temperature

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

Grayson average temperature chart (Celsius) Grayson average temperature chart (Fahrenheit)
Average monthly temperatures in Grayson (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4.7 7 13.4 19.3 24.1 28.1 29.8 29.2 25.9 19.9 13.6 7.3
°F 40.4 44.6 56.2 66.7 75.4 82.6 85.7 84.5 78.7 67.8 56.4 45.1

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.

Grayson monthly rainfall chart (mm) Grayson monthly rainfall chart (inches)
Average monthly rainfall in Grayson (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 83 80 102 94 111 101 125 100 83 68 83 89
inches 3.3 3.2 4 3.7 4.4 4 4.9 3.9 3.3 2.7 3.3 3.5
Rainy days 13 12 13 12 12 11 12 10 9 9 11 13

Average daily sunshine

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

Grayson average daily sunshine chart
Average daily sunshine Grayson
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.4 5.2 6.2 7.6 8.5 9.2 8.9 8.5 7.7 6.8 4.6 3.8

Day / night temperatures

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

Grayson average minimum / maximum temperatures (Celsius) Grayson average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Grayson (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -6 -4.5 0.9 5.4 10 14.6 17.1 16.5 12.8 6 1.4 -3.4
Max °C 5 7.3 13.8 19.6 24.5 28.5 30.2 29.5 26.3 20.3 13.9 7.6
Min °F 21.3 23.9 33.5 41.7 49.9 58.2 62.7 61.7 55 42.7 34.4 26
Max °F 31.1 34.5 45.1 54.5 63 70.7 74.5 73.4 67.1 55.6 45.7 35.8

Sea temperature

The graph below shows the average sea temperature.

Grayson average sea temperature chart (Celsius) Grayson average sea temperature chart (Fahrenheit)
Average sea temperature around Grayson in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.6 6.7 6.8 9 13.7 19.6 24 24.9 22.9 18.4 13.7 9.8
°F 45.7 44.1 44.3 48.2 56.7 67.3 75.2 76.8 73.3 65.1 56.6 49.7

Wind speed

The graph below shows the average wind speed.

Grayson average winspeed by month (km/h) Grayson average winspeed by month (mph)
Average wind speed in Grayson (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 14 14 15 14 12 11 10 9 10 11 13 14
mph 9 9 9 9 7 7 6 6 6 7 8 9

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.

Grayson relative humidity averages
Average relative humidity in Grayson
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
70% 68% 63% 60% 68% 72% 75% 76% 77% 71% 70% 72%

Other monthly averages

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Grayson weather stats

Grayson weather statistics
Hottest month: July 29.8°C 85.6°F
Driest month: October 68mm 2.7ins
Sunniest month: June 9.2hrs
Coldest month: January 4.7°C 40.5°F
Wettest month: July 125mm 4.9ins
Warmest sea: August 24.9°C 76.8°F
Map showing location of Grayson (38.33258, -82.9485)

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