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Mountlake Terrace, WA vs Philadelphia, PA weather comparison

Mountlake Terrace

WA

Philadelphia endures about 35 more days above 90 °F each year.

Philadelphia picks up around 12 more inches of snow each winter. Mountlake Terrace has around 45 fewer freezing nights a year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Mountlake Terrace, WA and Philadelphia, PA
Mountlake TerraceMetricPhiladelphia
149 daysSunny daysclear or partly cloudy skies203 days
54 inPrecipitationper year43 in
161 daysWet daysrain or snow per year120 days
6 inSnowfallper year18 in
1 daysHot daysabove 90 °F36 days
30 daysFreezing nightsat or below 32 °F76 days
78%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.

Mountlake TerracePhiladelphia

Daily highs

406080JanMarMayJulSepNovMountlake Terrace, Jan: 47 °FMountlake Terrace, Feb: 49 °FMountlake Terrace, Mar: 53 °FMountlake Terrace, Apr: 58 °FMountlake Terrace, May: 64 °FMountlake Terrace, Jun: 69 °FMountlake Terrace, Jul: 75 °FMountlake Terrace, Aug: 75 °FMountlake Terrace, Sep: 70 °FMountlake Terrace, Oct: 60 °FMountlake Terrace, Nov: 51 °FMountlake Terrace, Dec: 46 °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

4060JanMarMayJulSepNovMountlake Terrace, Jan: 37 °FMountlake Terrace, Feb: 37 °FMountlake Terrace, Mar: 39 °FMountlake Terrace, Apr: 42 °FMountlake Terrace, May: 48 °FMountlake Terrace, Jun: 52 °FMountlake Terrace, Jul: 56 °FMountlake Terrace, Aug: 56 °FMountlake Terrace, Sep: 52 °FMountlake Terrace, Oct: 46 °FMountlake Terrace, Nov: 40 °FMountlake Terrace, Dec: 36 °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
Mountlake Terrace high474953586469757570605146
Philadelphia high414453657584898680675646
Mountlake Terrace low373739424852565652464036
Philadelphia low272935455565706861504032

Monthly precipitation

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

Mountlake TerracePhiladelphia
0.02.55.07.5JanMarMayJulSepNovMountlake Terrace, Jan: 7.1 inMountlake Terrace, Feb: 4.7 inMountlake Terrace, Mar: 5.5 inMountlake Terrace, Apr: 4.4 inMountlake Terrace, May: 3.1 inMountlake Terrace, Jun: 2.8 inMountlake Terrace, Jul: 1.3 inMountlake Terrace, Aug: 1.5 inMountlake Terrace, Sep: 2.8 inMountlake Terrace, Oct: 5.6 inMountlake Terrace, Nov: 7.8 inMountlake Terrace, Dec: 7.1 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
Mountlake Terrace7.14.75.54.43.12.81.31.52.85.67.87.1
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.

Mountlake TerracePhiladelphia
01020JanMarMayJulSepNovMountlake Terrace, Jan: 7 daysMountlake Terrace, Feb: 9 daysMountlake Terrace, Mar: 9 daysMountlake Terrace, Apr: 10 daysMountlake Terrace, May: 13 daysMountlake Terrace, Jun: 13 daysMountlake Terrace, Jul: 21 daysMountlake Terrace, Aug: 21 daysMountlake Terrace, Sep: 19 daysMountlake Terrace, Oct: 13 daysMountlake Terrace, Nov: 8 daysMountlake Terrace, Dec: 7 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
Mountlake Terrace7991013132121191387
Philadelphia161616151616181918191716

Keep comparing

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

Mountlake Terrace vs another city

See the full Mountlake Terrace, WA climate profile

More Washington 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).