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Casa de Oro-Mount Helix, CA vs Rancho San Diego, CA weather comparison

Casa de Oro-Mount Helix

CA

Casa de Oro-Mount Helix and Rancho San Diego have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Casa de Oro-Mount Helix, CA and Rancho San Diego, CA
Casa de Oro-Mount HelixMetricRancho San Diego
283 daysSunny daysclear or partly cloudy skies283 days
12 inPrecipitationper year12 in
38 daysWet daysrain or snow per year38 days
0 inSnowfallper year0 in
48 daysHot daysabove 90 °F60 days
2 daysFreezing nightsat or below 32 °F3 days
69%Humidityaverage relative66%
65 °FAverage temperatureyear round65 °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.

Casa de Oro-Mount HelixRancho San Diego

Daily highs

708090JanMarMayJulSepNovCasa de Oro-Mount Helix, Jan: 69 °FCasa de Oro-Mount Helix, Feb: 69 °FCasa de Oro-Mount Helix, Mar: 71 °FCasa de Oro-Mount Helix, Apr: 74 °FCasa de Oro-Mount Helix, May: 75 °FCasa de Oro-Mount Helix, Jun: 79 °FCasa de Oro-Mount Helix, Jul: 85 °FCasa de Oro-Mount Helix, Aug: 87 °FCasa de Oro-Mount Helix, Sep: 86 °FCasa de Oro-Mount Helix, Oct: 80 °FCasa de Oro-Mount Helix, Nov: 75 °FCasa de Oro-Mount Helix, Dec: 68 °FRancho San Diego, Jan: 69 °FRancho San Diego, Feb: 69 °FRancho San Diego, Mar: 71 °FRancho San Diego, Apr: 74 °FRancho San Diego, May: 76 °FRancho San Diego, Jun: 81 °FRancho San Diego, Jul: 87 °FRancho San Diego, Aug: 89 °FRancho San Diego, Sep: 88 °FRancho San Diego, Oct: 81 °FRancho San Diego, Nov: 75 °FRancho San Diego, Dec: 68 °F

Daily lows

405060JanMarMayJulSepNovCasa de Oro-Mount Helix, Jan: 43 °FCasa de Oro-Mount Helix, Feb: 45 °FCasa de Oro-Mount Helix, Mar: 48 °FCasa de Oro-Mount Helix, Apr: 51 °FCasa de Oro-Mount Helix, May: 56 °FCasa de Oro-Mount Helix, Jun: 60 °FCasa de Oro-Mount Helix, Jul: 64 °FCasa de Oro-Mount Helix, Aug: 65 °FCasa de Oro-Mount Helix, Sep: 62 °FCasa de Oro-Mount Helix, Oct: 56 °FCasa de Oro-Mount Helix, Nov: 48 °FCasa de Oro-Mount Helix, Dec: 42 °FRancho San Diego, Jan: 42 °FRancho San Diego, Feb: 44 °FRancho San Diego, Mar: 47 °FRancho San Diego, Apr: 50 °FRancho San Diego, May: 55 °FRancho San Diego, Jun: 59 °FRancho San Diego, Jul: 63 °FRancho San Diego, Aug: 64 °FRancho San Diego, Sep: 62 °FRancho San Diego, Oct: 55 °FRancho San Diego, Nov: 47 °FRancho San Diego, Dec: 42 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Casa de Oro-Mount Helix high696971747579858786807568
Rancho San Diego high696971747681878988817568
Casa de Oro-Mount Helix low434548515660646562564842
Rancho San Diego low424447505559636462554742

Monthly precipitation

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

Casa de Oro-Mount HelixRancho San Diego
0.01.02.03.0JanMarMayJulSepNovCasa de Oro-Mount Helix, Jan: 2.3 inCasa de Oro-Mount Helix, Feb: 2.9 inCasa de Oro-Mount Helix, Mar: 1.9 inCasa de Oro-Mount Helix, Apr: 0.9 inCasa de Oro-Mount Helix, May: 0.4 inCasa de Oro-Mount Helix, Jun: 0.1 inCasa de Oro-Mount Helix, Jul: 0.1 inCasa de Oro-Mount Helix, Aug: 0.1 inCasa de Oro-Mount Helix, Sep: 0.2 inCasa de Oro-Mount Helix, Oct: 0.6 inCasa de Oro-Mount Helix, Nov: 0.9 inCasa de Oro-Mount Helix, Dec: 1.9 inRancho San Diego, Jan: 2.3 inRancho San Diego, Feb: 2.9 inRancho San Diego, Mar: 1.9 inRancho San Diego, Apr: 0.9 inRancho San Diego, May: 0.4 inRancho San Diego, Jun: 0.1 inRancho San Diego, Jul: 0.1 inRancho San Diego, Aug: 0.1 inRancho San Diego, Sep: 0.2 inRancho San Diego, Oct: 0.6 inRancho San Diego, Nov: 0.9 inRancho San Diego, Dec: 1.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Casa de Oro-Mount Helix2.32.91.90.90.40.10.10.10.20.60.91.9
Rancho San Diego2.32.91.90.90.40.10.10.10.20.60.91.9

Monthly sunny days

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

Casa de Oro-Mount HelixRancho San Diego
0102030JanMarMayJulSepNovCasa de Oro-Mount Helix, Jan: 20 daysCasa de Oro-Mount Helix, Feb: 17 daysCasa de Oro-Mount Helix, Mar: 20 daysCasa de Oro-Mount Helix, Apr: 22 daysCasa de Oro-Mount Helix, May: 22 daysCasa de Oro-Mount Helix, Jun: 26 daysCasa de Oro-Mount Helix, Jul: 28 daysCasa de Oro-Mount Helix, Aug: 30 daysCasa de Oro-Mount Helix, Sep: 28 daysCasa de Oro-Mount Helix, Oct: 26 daysCasa de Oro-Mount Helix, Nov: 24 daysCasa de Oro-Mount Helix, Dec: 21 daysRancho San Diego, Jan: 20 daysRancho San Diego, Feb: 17 daysRancho San Diego, Mar: 20 daysRancho San Diego, Apr: 22 daysRancho San Diego, May: 22 daysRancho San Diego, Jun: 26 daysRancho San Diego, Jul: 28 daysRancho San Diego, Aug: 30 daysRancho San Diego, Sep: 28 daysRancho San Diego, Oct: 26 daysRancho San Diego, Nov: 24 daysRancho San Diego, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Casa de Oro-Mount Helix201720222226283028262421
Rancho San Diego201720222226283028262421

Keep comparing

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

Casa de Oro-Mount Helix vs another city

See the full Casa de Oro-Mount Helix, CA climate profile

More California cities

Rancho San Diego vs another city

See the full Rancho San Diego, 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).