Jefferson (WI) monthly weather averages

Contents

Average daytime temperature

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

Jefferson average temperature chart (Celsius) Jefferson average temperature chart (Fahrenheit)
Average monthly temperatures in Jefferson (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -4 -1.4 5.4 13.5 20.5 26 28.4 26.8 22.4 15.7 7 -1.1
°F 24.7 29.4 41.6 56.3 68.9 78.9 83.1 80.2 72.2 60.3 44.6 30.1

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.

Jefferson monthly rainfall chart (mm) Jefferson monthly rainfall chart (inches)
Average monthly rainfall in Jefferson (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 31 28 57 78 74 99 104 103 98 63 57 45
inches 1.2 1.1 2.2 3.1 2.9 3.9 4.1 4 3.8 2.5 2.2 1.8
Rainy days 11 8 11 12 11 10 10 10 10 9 10 11

Average annual rainfall in Jefferson: 791.233mm (311.5 inches)

Average daily sunshine

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

Jefferson average daily sunshine chart
Average daily sunshine Jefferson
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.2 6 6.6 7.5 9.3 10.7 10.8 9.6 7.7 6.2 4.2 4

Day / night temperatures

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

Jefferson average minimum / maximum temperatures (Celsius) Jefferson average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Jefferson (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -13.8 -11.6 -4.6 2 7.8 13.3 16.1 14.6 10.2 4.2 -2.2 -10
Max °C -3.8 -1.2 5.6 13.8 20.8 26.4 28.7 27.1 22.7 16 7.2 -0.9
Min °F 7.2 11.1 23.7 35.6 46 55.9 61 58.2 50.3 39.6 28 14.1
Max °F 16.2 20.5 32.9 46.2 57.7 67.6 72.3 69.4 61.5 50.2 36.5 22.3

Sea temperature

The graph below shows the average sea temperature.

Jefferson average sea temperature chart (Celsius) Jefferson average sea temperature chart (Fahrenheit)
Average sea temperature around Jefferson in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4 3.3 3.1 3.7 5.6 10.7 17.4 20.8 18.8 13.3 8.6 5.5
°F 39.1 37.9 37.5 38.7 42.1 51.2 63.3 69.4 65.8 55.9 47.6 41.9

Wind speed

The graph below shows the average wind speed.

Jefferson average winspeed by month (km/h) Jefferson average winspeed by month (mph)
Average wind speed in Jefferson (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 18 19 20 17 16 14 14 15 17 18 18
mph 12 11 12 12 11 10 9 9 9 11 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.

Jefferson relative humidity averages
Average relative humidity in Jefferson
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 73% 71% 67% 67% 68% 71% 74% 76% 73% 76% 78%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Jefferson weather stats

Jefferson weather statistics
Hottest month: July 28.4°C 83.1°F
Driest month: February 28mm 1.1ins
Sunniest month: July 10.8hrs
Coldest month: January -4°C 24.8°F
Wettest month: July 104mm 4.1ins
Warmest sea: August 20.8°C 69.4°F
Map showing location of Jefferson (43.00556, -88.80733) Jefferson map pin © Google

Locations nearby

Top United States locations