Johnson Summit



Low point or opening between hills or mountains or in a ridge or mountain range.
land Icon Land
Map Marker

GPS Coordinates

Latitude, Longitude:
34.658597°, -118.3548015°
Elevation Icon


3547 ft. (1081 m.)

Topographic Map

US Topo Map

The USGS (U.S. Geological Survey) publishes a set of the most commonly used topographic maps of the U.S. called US Topo that are separated into rectangular quadrants that are printed at 22.75"x29" or larger. Johnson Summit is covered by the Del Sur, CA US Topo Map quadrant

Free US Topo Map PDF Order Waterproof Printed Topo Map
Water Icon Water
Land Icon Land
Man-made Icon Man-made

Nearby Cities

Nearby Points of Interest

Portal Ridge Land 0.2 mi
Governor Edmund G Brown East Branch California Aqueduct Water 1.1 mi
Pitchfork Ranch Man-made 1.5 mi
Johnson Siphon Water 1.5 mi
Foothill Ranch Man-made 1.5 mi

Nearby Photos

Photos provided by Panoramio and Flickr are under the copyright of their owners.

Historical Weather

Below are weather averages from 1971 to 2000 according to data gathered from the nearest official weather station. The nearest weather station for both precipitation and temperature measurements is FAIRM which is approximately 5 miles away and has an elevation of 3,060 feet (487 feet lower than Johnson Summit). Because the nearest station and this geographic feature may have differences in elevation and topography, the historic weather at the two separate locations may be different as well.

Average Daily Temperatures by Month (°F)

Average Monthly Precipitation (in inches)

Month Precip AVG High Temp AVG Low Temp
January 3.41" 54.4° 36.3°
February 3.99" 57.5° 38.6°
March 2.96" 61.1° 41.0°
April .89" 67.3° 44.7°
May .43" 74.7° 51.4°
June .08" 84.1° 59.6°
July .07" 90.6° 65.8°
August .15" 90.9° 65.6°
September .33" 85.8° 60.8°
October .49" 75.5° 51.6°
November 1.19" 62.8° 42.3°
December 2.32" 55.1° 36.5°

Summer High Temps

This location's average summer high temps are higher than 74% of other locations on record.

Winter Low Temps

This location's average winter low temps are higher than 89% of other locations on record.

Precipitation Levels

This location's average precipitation levels are lower than 82% of other locations on record.