El Cajon and Rancho San Diego have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| El Cajon | Metric | Rancho San Diego |
|---|---|---|
| 283 days | Sunny daysclear or partly cloudy skies | 283 days |
| 12 in | Precipitationper year | 12 in |
| 38 days | Wet daysrain or snow per year | 38 days |
| 0 in | Snowfallper year | 0 in |
| 58 days | Hot daysabove 90 °F | 60 days |
| 2 days | Freezing nightsat or below 32 °F | 3 days |
| 70% | Humidityaverage relative | 66% |
| 65 °F | Average temperatureyear round | 65 °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.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| El Cajon high | 69 | 69 | 71 | 74 | 76 | 81 | 86 | 89 | 87 | 81 | 75 | 69 |
| Rancho San Diego high | 69 | 69 | 71 | 74 | 76 | 81 | 87 | 89 | 88 | 81 | 75 | 68 |
| El Cajon low | 43 | 44 | 48 | 51 | 56 | 59 | 63 | 65 | 62 | 56 | 47 | 42 |
| Rancho San Diego low | 42 | 44 | 47 | 50 | 55 | 59 | 63 | 64 | 62 | 55 | 47 | 42 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| El Cajon | 2.3 | 2.9 | 1.9 | 0.9 | 0.4 | 0.1 | 0.1 | 0.1 | 0.2 | 0.6 | 0.9 | 1.9 |
| Rancho San Diego | 2.3 | 2.9 | 1.9 | 0.9 | 0.4 | 0.1 | 0.1 | 0.1 | 0.2 | 0.6 | 0.9 | 1.9 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| El Cajon | 20 | 17 | 20 | 22 | 22 | 26 | 28 | 30 | 28 | 26 | 24 | 21 |
| Rancho San Diego | 20 | 17 | 20 | 22 | 22 | 26 | 28 | 30 | 28 | 26 | 24 | 21 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
El Cajon vs another city
- El Cajon vs Bostonia, CA
- El Cajon vs Casa de Oro-Mount Helix, CA
- El Cajon vs Winter Gardens, CA
- El Cajon vs Santee, CA
- El Cajon vs La Mesa, CA
- El Cajon vs New York, NY
- El Cajon vs Los Angeles, CA
- El Cajon vs Chicago, IL
- El Cajon vs Houston, TX
- El Cajon vs Phoenix, AZ
- El Cajon vs Philadelphia, PA
Rancho San Diego vs another city
- Rancho San Diego vs Casa de Oro-Mount Helix, CA
- Rancho San Diego vs Spring Valley, CA
- Rancho San Diego vs Bostonia, CA
- Rancho San Diego vs Jamul, CA
- Rancho San Diego vs Winter Gardens, CA
- Rancho San Diego vs New York, NY
- Rancho San Diego vs Los Angeles, CA
- Rancho San Diego vs Chicago, IL
- Rancho San Diego vs Houston, TX
- Rancho San Diego vs Phoenix, AZ
- Rancho San Diego vs Philadelphia, PA
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).