Skip to content
VSWeather

Lake Ronkonkoma, NY vs Philadelphia, PA weather comparison

Lake Ronkonkoma

NY

Philadelphia endures about 28 more days above 90 °F each year.

Lake Ronkonkoma picks up around 13 more inches of snow each winter.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Lake Ronkonkoma, NY and Philadelphia, PA
Lake RonkonkomaMetricPhiladelphia
205 daysSunny daysclear or partly cloudy skies203 days
47 inPrecipitationper year43 in
121 daysWet daysrain or snow per year120 days
32 inSnowfallper year18 in
8 daysHot daysabove 90 °F36 days
92 daysFreezing nightsat or below 32 °F76 days
73%Humidityaverage relative68%
53 °FAverage temperatureyear round57 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

Lake RonkonkomaPhiladelphia

Daily highs

406080JanMarMayJulSepNovLake Ronkonkoma, Jan: 39 °FLake Ronkonkoma, Feb: 41 °FLake Ronkonkoma, Mar: 48 °FLake Ronkonkoma, Apr: 58 °FLake Ronkonkoma, May: 68 °FLake Ronkonkoma, Jun: 77 °FLake Ronkonkoma, Jul: 83 °FLake Ronkonkoma, Aug: 81 °FLake Ronkonkoma, Sep: 75 °FLake Ronkonkoma, Oct: 64 °FLake Ronkonkoma, Nov: 54 °FLake Ronkonkoma, Dec: 44 °FPhiladelphia, Jan: 41 °FPhiladelphia, Feb: 44 °FPhiladelphia, Mar: 53 °FPhiladelphia, Apr: 65 °FPhiladelphia, May: 75 °FPhiladelphia, Jun: 84 °FPhiladelphia, Jul: 89 °FPhiladelphia, Aug: 86 °FPhiladelphia, Sep: 80 °FPhiladelphia, Oct: 67 °FPhiladelphia, Nov: 56 °FPhiladelphia, Dec: 46 °F

Daily lows

4060JanMarMayJulSepNovLake Ronkonkoma, Jan: 25 °FLake Ronkonkoma, Feb: 26 °FLake Ronkonkoma, Mar: 32 °FLake Ronkonkoma, Apr: 42 °FLake Ronkonkoma, May: 51 °FLake Ronkonkoma, Jun: 61 °FLake Ronkonkoma, Jul: 68 °FLake Ronkonkoma, Aug: 66 °FLake Ronkonkoma, Sep: 59 °FLake Ronkonkoma, Oct: 48 °FLake Ronkonkoma, Nov: 38 °FLake Ronkonkoma, Dec: 30 °FPhiladelphia, Jan: 27 °FPhiladelphia, Feb: 29 °FPhiladelphia, Mar: 35 °FPhiladelphia, Apr: 45 °FPhiladelphia, May: 55 °FPhiladelphia, Jun: 65 °FPhiladelphia, Jul: 70 °FPhiladelphia, Aug: 68 °FPhiladelphia, Sep: 61 °FPhiladelphia, Oct: 50 °FPhiladelphia, Nov: 40 °FPhiladelphia, Dec: 32 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Lake Ronkonkoma high394148586877838175645444
Philadelphia high414453657584898680675646
Lake Ronkonkoma low252632425161686659483830
Philadelphia low272935455565706861504032

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

Lake RonkonkomaPhiladelphia
0.02.04.0JanMarMayJulSepNovLake Ronkonkoma, Jan: 3.8 inLake Ronkonkoma, Feb: 3.5 inLake Ronkonkoma, Mar: 4.6 inLake Ronkonkoma, Apr: 3.8 inLake Ronkonkoma, May: 3.5 inLake Ronkonkoma, Jun: 3.6 inLake Ronkonkoma, Jul: 3.3 inLake Ronkonkoma, Aug: 3.9 inLake Ronkonkoma, Sep: 3.8 inLake Ronkonkoma, Oct: 4.4 inLake Ronkonkoma, Nov: 3.7 inLake Ronkonkoma, Dec: 4.8 inPhiladelphia, Jan: 3.2 inPhiladelphia, Feb: 3.0 inPhiladelphia, Mar: 4.1 inPhiladelphia, Apr: 3.6 inPhiladelphia, May: 3.5 inPhiladelphia, Jun: 3.8 inPhiladelphia, Jul: 3.9 inPhiladelphia, Aug: 3.7 inPhiladelphia, Sep: 4.1 inPhiladelphia, Oct: 3.6 inPhiladelphia, Nov: 2.9 inPhiladelphia, Dec: 4.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Lake Ronkonkoma3.83.54.63.83.53.63.33.93.84.43.74.8
Philadelphia3.23.04.13.63.53.83.93.74.13.62.94.0

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

Lake RonkonkomaPhiladelphia
01020JanMarMayJulSepNovLake Ronkonkoma, Jan: 17 daysLake Ronkonkoma, Feb: 16 daysLake Ronkonkoma, Mar: 17 daysLake Ronkonkoma, Apr: 16 daysLake Ronkonkoma, May: 15 daysLake Ronkonkoma, Jun: 16 daysLake Ronkonkoma, Jul: 19 daysLake Ronkonkoma, Aug: 19 daysLake Ronkonkoma, Sep: 18 daysLake Ronkonkoma, Oct: 19 daysLake Ronkonkoma, Nov: 17 daysLake Ronkonkoma, Dec: 17 daysPhiladelphia, Jan: 16 daysPhiladelphia, Feb: 16 daysPhiladelphia, Mar: 16 daysPhiladelphia, Apr: 15 daysPhiladelphia, May: 16 daysPhiladelphia, Jun: 16 daysPhiladelphia, Jul: 18 daysPhiladelphia, Aug: 19 daysPhiladelphia, Sep: 18 daysPhiladelphia, Oct: 19 daysPhiladelphia, Nov: 17 daysPhiladelphia, Dec: 16 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Lake Ronkonkoma171617161516191918191717
Philadelphia161616151616181918191716

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Lake Ronkonkoma vs another city

See the full Lake Ronkonkoma, NY climate profile

More New York cities

Philadelphia vs another city

See the full Philadelphia, PA climate profile

More Pennsylvania cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. 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).