Delta monthly weather averages

Contents

Average daytime temperature

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

Delta average temperature chart (Celsius) Delta average temperature chart (Fahrenheit)
Average monthly temperatures in Delta (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.6 8.3 10.3 13.1 16.6 19.4 21.9 22 19.1 14.1 9.1 6.1
°F 42 46.9 50.5 55.6 61.8 67 71.4 71.6 66.4 57.3 48.3 42.9

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.

Delta monthly rainfall chart (mm) Delta monthly rainfall chart (inches)
Average monthly rainfall in Delta (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 154 117 104 76 60 47 38 42 64 117 166 176
inches 6.1 4.6 4.1 3 2.4 1.8 1.5 1.6 2.5 4.6 6.5 6.9
Rainy days 19 16 16 14 11 9 7 7 9 15 19 20

Average annual rainfall in Delta: 1087.066mm (428 inches)

Average daily sunshine

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

Delta average daily sunshine chart
Average daily sunshine Delta
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 3.2 4.4 5.9 7.6 8.1 9.7 8.8 6.6 4.3 2.4 1.9

Day / night temperatures

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

Delta average minimum / maximum temperatures (Celsius) Delta average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Delta (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.1 1.4 2.4 4.5 7.2 10.2 11.7 11.8 9.5 6.2 3 0.8
Max °C 5.7 8.5 10.5 13.3 16.8 19.7 22.2 22.3 19.4 14.3 9.2 6.2
Min °F 32.2 34.4 36.2 40.1 45 50.3 53 53.2 49 43.1 37.4 33.4
Max °F 37.2 40.8 43.5 48 53.6 58.8 62.4 62.6 57.9 50.4 43 38.3

Sea temperature

The graph below shows the average sea temperature.

Delta average sea temperature chart (Celsius) Delta average sea temperature chart (Fahrenheit)
Average sea temperature around Delta in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.5 7.4 7.9 9.1 10.9 12.5 13.5 13.6 12.6 10.6 9.1 8
°F 45.4 45.3 46.2 48.3 51.6 54.5 56.3 56.5 54.7 51.1 48.4 46.4

Wind speed

The graph below shows the average wind speed.

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

Delta relative humidity averages
Average relative humidity in Delta
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
84% 82% 78% 75% 74% 74% 73% 75% 79% 84% 84% 85%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Delta weather stats

Delta weather statistics
Hottest month: August 22°C 71.6°F
Driest month: July 38mm 1.5ins
Sunniest month: August 8.8hrs
Coldest month: January 5.6°C 42.1°F
Wettest month: December 176mm 6.9ins
Warmest sea: August 13.6°C 56.5°F
Map showing location of Delta (49.14399, -122.9068) Delta map pin © Google

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