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New Castle, PA weather and climate

Lawrence County, PA · population 21,727 · about 801 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at New Castle's own coordinates.

The year at a glance

Sunny days
157
clear or partly cloudy, per year
Precipitation
47 in
per year
Wet days
161
rain or snow per year
Snowfall
28 in
per year
Hot days
21
above 90 °F
Freezing nights
134
at or below 32 °F
Humidity
74%
average relative
Average temperature
51 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 37 °FDaily high, Feb: 40 °FDaily high, Mar: 49 °FDaily high, Apr: 63 °FDaily high, May: 73 °FDaily high, Jun: 82 °FDaily high, Jul: 86 °FDaily high, Aug: 85 °FDaily high, Sep: 78 °FDaily high, Oct: 66 °FDaily high, Nov: 53 °FDaily high, Dec: 42 °FDaily low, Jan: 19 °FDaily low, Feb: 19 °FDaily low, Mar: 26 °FDaily low, Apr: 36 °FDaily low, May: 47 °FDaily low, Jun: 56 °FDaily low, Jul: 60 °FDaily low, Aug: 59 °FDaily low, Sep: 52 °FDaily low, Oct: 41 °FDaily low, Nov: 32 °FDaily low, Dec: 25 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high374049637382868578665342
Daily low191926364756605952413225

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovNew Castle, Jan: 3.6 inNew Castle, Feb: 2.9 inNew Castle, Mar: 4.0 inNew Castle, Apr: 4.6 inNew Castle, May: 4.4 inNew Castle, Jun: 4.8 inNew Castle, Jul: 4.1 inNew Castle, Aug: 3.7 inNew Castle, Sep: 4.0 inNew Castle, Oct: 3.6 inNew Castle, Nov: 3.5 inNew Castle, Dec: 3.5 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
New Castle3.62.94.04.64.44.84.13.74.03.63.53.5

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovNew Castle, Jan: 7 daysNew Castle, Feb: 8 daysNew Castle, Mar: 12 daysNew Castle, Apr: 12 daysNew Castle, May: 14 daysNew Castle, Jun: 16 daysNew Castle, Jul: 18 daysNew Castle, Aug: 19 daysNew Castle, Sep: 18 daysNew Castle, Oct: 16 daysNew Castle, Nov: 11 daysNew Castle, Dec: 7 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
New Castle781212141618191816117

Compare New Castle with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Pennsylvania city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).