2021 Long Range Weather Forecast for Pacific Southwest

Get the Long Range Weather for Your Location

See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.

To see long term forecasts for the entire year, pick up a copy of The 2021 Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific.

Free 2-Month Weather Forecast

January 2021 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Jan 1-6Rain, then sunny, cool
Jan 7-15Sunny, turning warm
Jan 16-20Sunny, cool
Jan 21-26Sunny, warm
Jan 27-31Rainy, cold
Januarytemperature 55.5° (avg. north, 3° above south)
precipitation 2" (1" below avg.)

February 2021 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Feb 1-12Rainy periods, cool
Feb 13-21Sunny, cool
Feb 22-25Rain, some heavy; cold
Feb 26-28Sunny, cool
Februarytemperature 53° (2° below avg.)
precipitation 2.5" (1" below avg. north, 2" above south)

Annual Weather Summary
November 2020 to October 2021

Winter will be cooler and drier than normal, with below-normal mountain snows. The coldest temperatures will occur in late December, late January, and mid- to late February. The stormiest periods will be from late January into early February, mid- to late February, and late March into early April. April and May will be cooler than normal, with rainfall below normal in the north and above normal in the south. Summer temperatures will be cooler than normal inland and warmer near the coast, with slightly above-normal rainfall. The hottest periods will be in mid-June and mid- to late August. September and October will be warmer and rainier than normal.

Map showing Old Farmer's Almanac long range weather region number 16

About the Pacific Southwest Region

The Pacific Southwest long range weather region includes all or part of the following states: CALIFORNIA (Long Beach, Los Angeles, San Diego, San Francisco, San Jose).

Pacific Southwest Neighboring Regions

Here are the regions that neighbor the Pacific Southwest long range weather region:

Temperature and Precipitation November 2020 to October 2021

Temperature and Precipitation Chart, November 2020 to October 2021 for Pacific Southwest Region

Reader Comments

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It doesn't seem like it. It's like an inferno today. I'm here in Ventura county 5 min away from the beach with 90+ degree weather, it's terrible.

Completely off - again

Wrong, again...and as usual. It's mid-October and temperatures are SCORCHING (high 90s...for a WEEK). And no rain. At all.

I don't know why anybody uses the Farmer's Almanac which is presumptive and sounds apparently uses 1820s technology. It has been wrong every. Year. For. The. Last. Five. Years. EVERY YEAR. Do NOT rely on the Farmer's Almanac. The statisticians are using models that no longer work.

Now We know

Been stocking up on blankets headgear boots etc. Gonna be a bad winter.

Too bad it's wrong

Temps in the 100s here in the coast valley forge straight days. Its October for Petes Sake! Add the thick layer of smoke and you've got Dantes inferno. What is going on??

Heat came early.So what!

The heat came early. Better hope rain comes early as well. The entire west coast needs rain asap.

Inaccuracies are OK

People leaving angry comments obviously don’t understand an almanac is for “predictions.” If the weathers different, change your clothes don’t cry on the internet about it.


No longer so easy to forecast, is it? This prediction is way off. Last week the SF bay area and northern CA had record breaking heat.

If you’re in Temecula here’s the reason it may not snow

So if it’s not snowing in your area the reasoning is 1. It is a hot place 2. It’s not cold enough 3. It needs to rain but if it’s at 100° it will not rain. That’s the reasoning don’t be mad because of that if the weather lies it doesn’t mean you can say Ugh Here’s what you should do if you really want it to snow 1. Go to a cold city or The mountains 2. Wait until December The weather can change 3. Fix your issues and just have fun with your day. That’s how If you say I’m lying I’m just giving you an example Bye.

In my city it might snow, But

In my city it might snow, But if it’s true I’m going to freak outs And play in the snow but if you are all in a different country like Los Angeles or New Mexico That’s all right I hope you all get snow to And if you get snow I wish you the best of luck And don’t be mad if it doesn’t snow I want to make your day happy an unique and flexible so yeah. Farmers Is a great Website And it tells the truth on whether it will be snowing Or diff kinds but I hope you enjoy the snow when it comes byee.

yay its gonna snow

yay its gonna snow