Los Angeles : Westside vs. North Valley Weather

Westside: Santa Monica and Lower Benedict Canyon
Valley: Sherman Oaks and CBS Studio City

Summary Statistics

Overall Statistics of Temperature Differences, Westside — Valley

Daytime

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mean, Daytime Diffs	−0.7	−1.2	−2.7	−4.0	−4.3	−6.8	−11.4	−12.4	−10.6	−3.3	−0.8	−0.9	Valley is warmer in the day, esp in Summer
Mean, Nighttime Diffs	5.4	4.7	2.8	1.4	2.4	1.9	0.6	−0.4	1.1	1.9	7.2	4.1	Valley is colder at night, esp in Winter

The daily daytime SD's vary between 3 degrees (winter) and 5 degrees (summer). The daily nighttime SD's vary between 2 degrees (summer) and 3.5 degrees (winter).

The main difference "boils" down to about 10 degrees warmer weather from Jul through Sep (85 instead of 75). The rest is modest—difference that can be felt in benchmark direct comparisons, but that you would not notice day-to-day.

Visual Statistics

Define Summer as approximately June through October; winter as approximately Nov through April. Visually:

In the summer, the (daytime) highs are about 10 degrees warmer in the valley.
In the winter, the (daytime) highs are about 2 degrees warmer in the valley.
In the summer, the (nighttime) lows are about 2 degrees cooler in the valley.
In the winter, the (nighttime) lows are about 5 degrees cooler in the valley.

Los Angeles : Westside vs. North Valley Weather

Summary Statistics

Overall Statistics of Temperature Differences, Westside — Valley

Daytime

Visual Statistics

Graphics

3-day Smoothed

Highs and Lows

Deltas

Day to Day

Highs and Lows

Deltas