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Ontario, CA vs Upland, CA weather comparison

Ontario

CA

Ontario and Upland have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Ontario, CA and Upland, CA
OntarioMetricUpland
284 daysSunny daysclear or partly cloudy skies290 days
11 inPrecipitationper year16 in
35 daysWet daysrain or snow per year38 days
0 inSnowfallper year0 in
93 daysHot daysabove 90 °F85 days
3 daysFreezing nightsat or below 32 °F3 days
62%Humidityaverage relative60%
67 °FAverage temperatureyear round66 °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.

OntarioUpland

Daily highs

708090JanMarMayJulSepNovOntario, Jan: 68 °FOntario, Feb: 68 °FOntario, Mar: 72 °FOntario, Apr: 76 °FOntario, May: 80 °FOntario, Jun: 87 °FOntario, Jul: 94 °FOntario, Aug: 95 °FOntario, Sep: 91 °FOntario, Oct: 83 °FOntario, Nov: 75 °FOntario, Dec: 67 °FUpland, Jan: 68 °FUpland, Feb: 68 °FUpland, Mar: 72 °FUpland, Apr: 76 °FUpland, May: 80 °FUpland, Jun: 86 °FUpland, Jul: 92 °FUpland, Aug: 94 °FUpland, Sep: 91 °FUpland, Oct: 82 °FUpland, Nov: 74 °FUpland, Dec: 67 °F

Daily lows

5060JanMarMayJulSepNovOntario, Jan: 44 °FOntario, Feb: 46 °FOntario, Mar: 48 °FOntario, Apr: 51 °FOntario, May: 55 °FOntario, Jun: 60 °FOntario, Jul: 64 °FOntario, Aug: 65 °FOntario, Sep: 63 °FOntario, Oct: 56 °FOntario, Nov: 48 °FOntario, Dec: 43 °FUpland, Jan: 44 °FUpland, Feb: 45 °FUpland, Mar: 47 °FUpland, Apr: 50 °FUpland, May: 55 °FUpland, Jun: 59 °FUpland, Jul: 63 °FUpland, Aug: 64 °FUpland, Sep: 62 °FUpland, Oct: 55 °FUpland, Nov: 47 °FUpland, Dec: 42 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Ontario high686872768087949591837567
Upland high686872768086929491827467
Ontario low444648515560646563564843
Upland low444547505559636462554742

Monthly precipitation

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

OntarioUpland
0.02.04.0JanMarMayJulSepNovOntario, Jan: 2.4 inOntario, Feb: 2.8 inOntario, Mar: 1.7 inOntario, Apr: 0.8 inOntario, May: 0.4 inOntario, Jun: 0.1 inOntario, Jul: 0.1 inOntario, Aug: 0.0 inOntario, Sep: 0.1 inOntario, Oct: 0.6 inOntario, Nov: 0.8 inOntario, Dec: 1.7 inUpland, Jan: 3.6 inUpland, Feb: 4.0 inUpland, Mar: 2.4 inUpland, Apr: 1.0 inUpland, May: 0.4 inUpland, Jun: 0.1 inUpland, Jul: 0.1 inUpland, Aug: 0.0 inUpland, Sep: 0.2 inUpland, Oct: 0.7 inUpland, Nov: 1.0 inUpland, Dec: 2.4 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Ontario2.42.81.70.80.40.10.10.00.10.60.81.7
Upland3.64.02.41.00.40.10.10.00.20.71.02.4

Monthly sunny days

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

OntarioUpland
0102030JanMarMayJulSepNovOntario, Jan: 19 daysOntario, Feb: 16 daysOntario, Mar: 18 daysOntario, Apr: 21 daysOntario, May: 24 daysOntario, Jun: 27 daysOntario, Jul: 29 daysOntario, Aug: 30 daysOntario, Sep: 28 daysOntario, Oct: 26 daysOntario, Nov: 24 daysOntario, Dec: 21 daysUpland, Jan: 19 daysUpland, Feb: 17 daysUpland, Mar: 20 daysUpland, Apr: 23 daysUpland, May: 25 daysUpland, Jun: 28 daysUpland, Jul: 29 daysUpland, Aug: 30 daysUpland, Sep: 29 daysUpland, Oct: 27 daysUpland, Nov: 24 daysUpland, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Ontario191618212427293028262421
Upland191720232528293029272421

Keep comparing

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

Ontario vs another city

See the full Ontario, CA climate profile

More California cities

Upland vs another city

See the full Upland, CA climate profile

More California 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).