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Littleton, CO vs Philadelphia, PA weather comparison

Littleton

CO

Littleton picks up around 30 more inches of snow each winter.

Philadelphia has around 73 fewer freezing nights a year. Littleton enjoys about 71 more sunny days a year than Philadelphia.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Littleton, CO and Philadelphia, PA
LittletonMetricPhiladelphia
274 daysSunny daysclear or partly cloudy skies203 days
22 inPrecipitationper year43 in
105 daysWet daysrain or snow per year120 days
48 inSnowfallper year18 in
33 daysHot daysabove 90 °F36 days
149 daysFreezing nightsat or below 32 °F76 days
57%Humidityaverage relative68%
51 °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.

LittletonPhiladelphia

Daily highs

406080JanMarMayJulSepNovLittleton, Jan: 46 °FLittleton, Feb: 47 °FLittleton, Mar: 55 °FLittleton, Apr: 60 °FLittleton, May: 69 °FLittleton, Jun: 81 °FLittleton, Jul: 87 °FLittleton, Aug: 85 °FLittleton, Sep: 77 °FLittleton, Oct: 64 °FLittleton, Nov: 53 °FLittleton, Dec: 45 °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

204060JanMarMayJulSepNovLittleton, Jan: 19 °FLittleton, Feb: 20 °FLittleton, Mar: 28 °FLittleton, Apr: 34 °FLittleton, May: 44 °FLittleton, Jun: 53 °FLittleton, Jul: 59 °FLittleton, Aug: 57 °FLittleton, Sep: 49 °FLittleton, Oct: 37 °FLittleton, Nov: 27 °FLittleton, Dec: 19 °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
Littleton high464755606981878577645345
Philadelphia high414453657584898680675646
Littleton low192028344453595749372719
Philadelphia low272935455565706861504032

Monthly precipitation

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

LittletonPhiladelphia
0.02.04.0JanMarMayJulSepNovLittleton, Jan: 0.9 inLittleton, Feb: 0.9 inLittleton, Mar: 2.0 inLittleton, Apr: 3.0 inLittleton, May: 3.5 inLittleton, Jun: 2.3 inLittleton, Jul: 2.2 inLittleton, Aug: 1.9 inLittleton, Sep: 1.5 inLittleton, Oct: 1.7 inLittleton, Nov: 1.2 inLittleton, Dec: 0.9 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
Littleton0.90.92.03.03.52.32.21.91.51.71.20.9
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.

LittletonPhiladelphia
01020JanMarMayJulSepNovLittleton, Jan: 23 daysLittleton, Feb: 20 daysLittleton, Mar: 22 daysLittleton, Apr: 19 daysLittleton, May: 20 daysLittleton, Jun: 24 daysLittleton, Jul: 25 daysLittleton, Aug: 24 daysLittleton, Sep: 24 daysLittleton, Oct: 24 daysLittleton, Nov: 24 daysLittleton, Dec: 24 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
Littleton232022192024252424242424
Philadelphia161616151616181918191716

Keep comparing

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

Littleton vs another city

See the full Littleton, CO climate profile

More Colorado 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).