Jefferson (TX) monthly weather averages

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 12.1 14.8 19.5 24.2 27.6 31.3 33.7 33.6 30.2 25.1 19.1 13.8
°F 53.7 58.6 67.2 75.5 81.6 88.4 92.6 92.6 86.4 77.1 66.4 56.9

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 93 95 100 118 129 105 79 64 93 97 106 108
inches 3.6 3.7 3.9 4.6 5.1 4.1 3.1 2.5 3.7 3.8 4.2 4.2
Rainy days 9 8 9 8 9 8 7 7 7 7 8 9

Average annual rainfall in Jefferson: 1124.233mm (442.6 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 5.7 6.6 7.4 8.2 9.1 10.6 11 10.3 8.8 8.1 6.4 5.7

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 0 2.1 6.6 11.3 15.4 19.4 21.5 21.1 17.7 11 6.2 1.5
Max °C 12.4 15.1 19.9 24.5 27.9 31.6 34 34 30.5 25.4 19.5 14.2
Min °F 32.1 35.8 43.8 52.3 59.6 66.9 70.6 69.9 63.9 51.8 43.1 34.6
Max °F 43.2 47.5 55.8 64.2 70.9 77.9 81.9 81.5 75.4 64.8 55 46

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 15.4 15.1 16 18 20.8 23.6 25.6 26.9 25.7 22.5 19.4 17.1
°F 59.7 59.1 60.8 64.4 69.4 74.5 78.2 80.4 78.3 72.6 67 62.7

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 16 17 17 17 14 13 12 12 12 13 14 15
mph 10 10 11 10 9 8 7 7 8 8 9 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.

Jefferson relative humidity averages
Average relative humidity in Jefferson
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 70% 68% 69% 73% 72% 70% 70% 73% 71% 73% 73%

Other monthly averages

UV index Best time to go?

Jefferson weather stats

Jefferson weather statistics
Hottest month: July 33.7°C 92.7°F
Driest month: August 64mm 2.5ins
Sunniest month: July 11hrs
Coldest month: January 12.1°C 53.8°F
Wettest month: May 129mm 5.1ins
Warmest sea: August 26.9°C 80.4°F
Map showing location of Jefferson (32.75736, -94.34519) Jefferson map pin © Google

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