Letchworth monthly weather averages

Contents

Average daytime temperature

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

Letchworth average temperature chart (Celsius) Letchworth average temperature chart (Fahrenheit)
Average monthly temperatures in Letchworth (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.1 6.4 9.3 12.1 15.8 19.1 21.1 21 18.2 14.4 9.4 7.1
°F 43 43.5 48.7 53.8 60.4 66.3 70 69.7 64.8 57.9 48.8 44.7

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.

Letchworth monthly rainfall chart (mm) Letchworth monthly rainfall chart (inches)
Average monthly rainfall in Letchworth (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 55 40 49 48 49 53 47 54 52 57 57 60
inches 2.2 1.6 1.9 1.9 1.9 2.1 1.9 2.1 2 2.2 2.2 2.4
Rainy days 18 14 16 15 14 12 11 12 12 14 17 16

Average annual rainfall in Letchworth: 669.667mm (263.6 inches)

Average daily sunshine

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

Letchworth average daily sunshine chart
Average daily sunshine Letchworth
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 2.6 3.8 5 6.5 7.2 6.5 6.3 5.2 3.8 2.5 1.8

Day / night temperatures

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

Letchworth average minimum / maximum temperatures (Celsius) Letchworth average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Letchworth (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.8 0.7 2 3.7 6.4 9.5 11.5 11.4 9.6 7.1 3.3 1.6
Max °C 6.3 6.6 9.5 12.3 16 19.3 21.4 21.2 18.5 14.6 9.5 7.2
Min °F 33.4 33.2 35.5 38.7 43.5 49.1 52.6 52.5 49.2 44.7 37.9 34.9
Max °F 38.3 38.5 42.3 46.4 52.2 57.9 61.5 61.3 57.2 51.4 43.5 39.9

Sea temperature

The graph below shows the average sea temperature.

Letchworth average sea temperature chart (Celsius) Letchworth average sea temperature chart (Fahrenheit)
Average sea temperature around Letchworth in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.9 7.9 7.9 9.1 11 13.3 15.5 17 17 15.6 13.2 10.7
°F 48 46.2 46.2 48.4 51.8 55.9 59.9 62.6 62.6 60 55.7 51.3

Wind speed

The graph below shows the average wind speed.

Letchworth average winspeed by month (km/h) Letchworth average winspeed by month (mph)
Average wind speed in Letchworth (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 16 17 16 15 13 13 13 14 14 16 16
mph 10 10 10 10 9 8 8 8 9 9 10 10

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.

Letchworth relative humidity averages
Average relative humidity in Letchworth
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
91% 88% 83% 80% 78% 77% 77% 78% 82% 87% 90% 92%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Letchworth weather stats

Letchworth weather statistics
Hottest month: July 21.1°C 70°F
Driest month: February 40mm 1.6ins
Sunniest month: June 7.2hrs
Coldest month: January 6.1°C 43°F
Wettest month: December 60mm 2.4ins
Warmest sea: August 17°C 62.6°F
Map showing location of Letchworth (51.97944, -0.2284) Letchworth map pin © Google

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