Nampa (ID) monthly weather averages

Contents

Average daytime temperature

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

Nampa average temperature chart (Celsius) Nampa average temperature chart (Fahrenheit)
Average monthly temperatures in Nampa (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.3 7.2 12.5 17.4 22.7 27.9 32.9 31.6 25.6 18.3 9.3 3.2
°F 36.1 45 54.6 63.3 72.8 82.2 91.2 88.9 78 64.9 48.8 37.7

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.

Nampa monthly rainfall chart (mm) Nampa monthly rainfall chart (inches)
Average monthly rainfall in Nampa (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 34 25 28 26 25 20 6 9 15 18 32 33
inches 1.3 1 1.1 1 1 0.8 0.2 0.4 0.6 0.7 1.2 1.3
Rainy days 11 10 10 8 7 6 3 3 4 6 10 11

Average annual rainfall in Nampa: 196.5mm (77.4 inches)

Average daily sunshine

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

Nampa average daily sunshine chart
Average daily sunshine Nampa
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.9 5.7 8.1 9.8 11.4 12.5 14 12.6 10.9 8.3 4.3 3.7

Day / night temperatures

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

Nampa average minimum / maximum temperatures (Celsius) Nampa average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Nampa (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -6.3 -3.1 -0.5 2.5 6.8 11.1 14.1 13 7.6 2.4 -1.4 -5.6
Max °C 2.5 7.5 12.9 17.8 23.1 28.3 33.4 32.1 26 18.7 9.6 3.4
Min °F 20.7 26.5 31.2 36.4 44.2 52 57.3 55.3 45.7 36.2 29.5 21.9
Max °F 28.6 36 43.2 50.2 58.8 67.5 74.7 72.5 62.2 50.9 39.4 30

Sea temperature

The graph below shows the average sea temperature.

Nampa average sea temperature chart (Celsius) Nampa average sea temperature chart (Fahrenheit)
Average sea temperature around Nampa in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.6 9.5 9.5 9.8 10.6 12.1 13.9 15 14.5 13.1 11.5 10.1
°F 49.2 49 49.2 49.6 51.1 53.8 56.9 58.9 58.2 55.6 52.6 50.3

Wind speed

The graph below shows the average wind speed.

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

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.

Nampa relative humidity averages
Average relative humidity in Nampa
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
75% 70% 60% 53% 49% 45% 35% 36% 44% 54% 70% 75%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Nampa weather stats

Nampa weather statistics
Hottest month: July 32.9°C 91.2°F
Driest month: July 6mm 0.2ins
Sunniest month: July 14hrs
Coldest month: January 2.3°C 36.1°F
Wettest month: January 34mm 1.3ins
Warmest sea: August 15°C 59°F
Map showing location of Nampa (43.54072, -116.56346) Nampa map pin © Google

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