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Alton, IL vs Los Angeles, CA weather comparison

Alton

IL

Alton picks up around 13 more inches of snow each winter.

Los Angeles has around 96 fewer freezing nights a year. Alton endures about 24 more days above 90 °F each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Alton, IL and Los Angeles, CA
AltonMetricLos Angeles
202 daysSunny daysclear or partly cloudy skies300 days
41 inPrecipitationper year13 in
117 daysWet daysrain or snow per year30 days
13 inSnowfallper year0 in
30 daysHot daysabove 90 °F7 days
96 daysFreezing nightsat or below 32 °F0 days
68%Humidityaverage relative65%
56 °FAverage temperatureyear round64 °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.

AltonLos Angeles

Daily highs

406080JanMarMayJulSepNovAlton, Jan: 39 °FAlton, Feb: 44 °FAlton, Mar: 54 °FAlton, Apr: 66 °FAlton, May: 75 °FAlton, Jun: 84 °FAlton, Jul: 87 °FAlton, Aug: 86 °FAlton, Sep: 80 °FAlton, Oct: 68 °FAlton, Nov: 54 °FAlton, Dec: 44 °FLos Angeles, Jan: 67 °FLos Angeles, Feb: 66 °FLos Angeles, Mar: 68 °FLos Angeles, Apr: 70 °FLos Angeles, May: 71 °FLos Angeles, Jun: 74 °FLos Angeles, Jul: 77 °FLos Angeles, Aug: 79 °FLos Angeles, Sep: 78 °FLos Angeles, Oct: 76 °FLos Angeles, Nov: 71 °FLos Angeles, Dec: 66 °F

Daily lows

204060JanMarMayJulSepNovAlton, Jan: 22 °FAlton, Feb: 25 °FAlton, Mar: 35 °FAlton, Apr: 45 °FAlton, May: 56 °FAlton, Jun: 66 °FAlton, Jul: 69 °FAlton, Aug: 67 °FAlton, Sep: 60 °FAlton, Oct: 48 °FAlton, Nov: 37 °FAlton, Dec: 27 °FLos Angeles, Jan: 48 °FLos Angeles, Feb: 49 °FLos Angeles, Mar: 51 °FLos Angeles, Apr: 53 °FLos Angeles, May: 57 °FLos Angeles, Jun: 60 °FLos Angeles, Jul: 63 °FLos Angeles, Aug: 64 °FLos Angeles, Sep: 62 °FLos Angeles, Oct: 58 °FLos Angeles, Nov: 52 °FLos Angeles, Dec: 47 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Alton high394454667584878680685444
Los Angeles high676668707174777978767166
Alton low222535455666696760483727
Los Angeles low484951535760636462585247

Monthly precipitation

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

AltonLos Angeles
0.02.04.0JanMarMayJulSepNovAlton, Jan: 2.6 inAlton, Feb: 2.4 inAlton, Mar: 3.6 inAlton, Apr: 4.6 inAlton, May: 5.0 inAlton, Jun: 4.0 inAlton, Jul: 3.2 inAlton, Aug: 2.9 inAlton, Sep: 3.3 inAlton, Oct: 3.3 inAlton, Nov: 3.6 inAlton, Dec: 2.4 inLos Angeles, Jan: 3.1 inLos Angeles, Feb: 3.3 inLos Angeles, Mar: 2.2 inLos Angeles, Apr: 0.7 inLos Angeles, May: 0.3 inLos Angeles, Jun: 0.1 inLos Angeles, Jul: 0.1 inLos Angeles, Aug: 0.0 inLos Angeles, Sep: 0.1 inLos Angeles, Oct: 0.6 inLos Angeles, Nov: 0.7 inLos Angeles, Dec: 2.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Alton2.62.43.64.65.04.03.22.93.33.33.62.4
Los Angeles3.13.32.20.70.30.10.10.00.10.60.72.0

Monthly sunny days

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

AltonLos Angeles
0102030JanMarMayJulSepNovAlton, Jan: 14 daysAlton, Feb: 13 daysAlton, Mar: 15 daysAlton, Apr: 15 daysAlton, May: 16 daysAlton, Jun: 17 daysAlton, Jul: 21 daysAlton, Aug: 22 daysAlton, Sep: 21 daysAlton, Oct: 19 daysAlton, Nov: 16 daysAlton, Dec: 14 daysLos Angeles, Jan: 20 daysLos Angeles, Feb: 18 daysLos Angeles, Mar: 22 daysLos Angeles, Apr: 25 daysLos Angeles, May: 26 daysLos Angeles, Jun: 28 daysLos Angeles, Jul: 30 daysLos Angeles, Aug: 30 daysLos Angeles, Sep: 29 daysLos Angeles, Oct: 27 daysLos Angeles, Nov: 24 daysLos Angeles, Dec: 22 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Alton141315151617212221191614
Los Angeles201822252628303029272422

Keep comparing

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

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).