Lancaster (PA) monthly weather averages

Contents

Average daytime temperature

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

Lancaster average temperature chart (Celsius) Lancaster average temperature chart (Fahrenheit)
Average monthly temperatures in Lancaster (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.8 4.5 10.5 16.7 22.7 27.3 29.6 28.8 25 18.7 12.1 5.3
°F 37 40.2 50.9 62.1 72.9 81.2 85.3 83.8 77 65.6 53.8 41.5

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.

Lancaster monthly rainfall chart (mm) Lancaster monthly rainfall chart (inches)
Average monthly rainfall in Lancaster (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 78 72 92 93 101 99 101 95 97 75 93 89
inches 3.1 2.8 3.6 3.7 4 3.9 4 3.7 3.8 3 3.7 3.5
Rainy days 10 10 11 11 12 11 10 10 9 8 10 11

Average annual rainfall in Lancaster: 1048.533mm (412.8 inches)

Average daily sunshine

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

Lancaster average daily sunshine chart
Average daily sunshine Lancaster
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.5 6.3 7.2 8.1 8.8 10 10.2 9.4 7.9 7 5.3 4.7

Day / night temperatures

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

Lancaster average minimum / maximum temperatures (Celsius) Lancaster average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Lancaster (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -7 -5.8 -1 4 9.6 14.8 17.5 16.7 12.5 5.8 1.5 -3.9
Max °C 3 4.8 10.8 17.1 23.1 27.7 29.9 29.1 25.3 19 12.4 5.5
Min °F 19.4 21.6 30.2 39.1 49.2 58.6 63.5 62.1 54.5 42.4 34.6 25
Max °F 28.4 31.1 40.8 50.9 61.3 70.2 74.7 73.2 66 54.3 44.4 33.4

Sea temperature

The graph below shows the average sea temperature.

Lancaster average sea temperature chart (Celsius) Lancaster average sea temperature chart (Fahrenheit)
Average sea temperature around Lancaster in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2 0.2 0.8 4.1 9.4 16.2 21.8 23.2 21 16.1 10.7 5.7
°F 35.5 32.4 33.5 39.4 48.9 61.2 71.2 73.8 69.8 60.9 51.2 42.2

Wind speed

The graph below shows the average wind speed.

Lancaster average winspeed by month (km/h) Lancaster average winspeed by month (mph)
Average wind speed in Lancaster (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 17 18 17 15 14 13 12 13 14 16 16
mph 10 10 11 11 9 9 8 7 8 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.

Lancaster relative humidity averages
Average relative humidity in Lancaster
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
66% 64% 61% 60% 66% 68% 69% 72% 73% 71% 69% 68%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Lancaster weather stats

Lancaster weather statistics
Hottest month: July 29.6°C 85.3°F
Driest month: February 72mm 2.8ins
Sunniest month: July 10.2hrs
Coldest month: January 2.8°C 37°F
Wettest month: May 101mm 4ins
Warmest sea: August 23.2°C 73.8°F
Map showing location of Lancaster (40.03788, -76.30551) Lancaster map pin © Google

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