2021 Long Range Weather Forecast for Desert 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

March 2021 Long Range Weather Forecast for Desert Southwest
DatesWeather Conditions
Mar 1-2Sunny, cool
Mar 3-9Snow showers, then sunny, cool
Mar 10-18Sunny, turning warm
Mar 19-23Snow showers east, sunny west; cold
Mar 24-31Sunny, cool
Marchtemperature 56° (2° below avg.)
precipitation 0.3" (avg. east, 0.4" below west)

April 2021 Long Range Weather Forecast for Desert Southwest
DatesWeather Conditions
Apr 1-4Sunny, warm
Apr 5-12Rain, then sunny, cool
Apr 13-20Sunny; warm east, turning cool west
Apr 21-24Sunny; cool east, warm west
Apr 25-30Rainy periods, cool
Apriltemperature 55° (2° below avg.)
precipitation 1.5" (1" above avg.)

Annual Weather Summary
November 2020 to October 2021

Winter will be colder and drier than normal, with the coldest periods in mid- and late December and mid- and late February. Snowfall will be below normal in most areas that normally receive snow, with the snowiest periods in late December and late February. April and May will be cooler than normal in the east and warmer in the west, with above-normal rainfall. Summer will be cooler than normal, with near-normal rainfall. The hottest periods will occur in mid-June and late August. September and October will be cooler than normal, with near- to slightly above-normal precipitation.

Map showing Old Farmer's Almanac long range weather region number 14

About the Desert Southwest Region

The Desert Southwest long range weather region includes all or part of the following states: ARIZONA (Glendale, Mesa, Phoenix, Scottsdale, Tucson), CALIFORNIA (Brawley, Calexico, Coachella, El Centro, Indio), COLORADO (Durango), NEVADA (Henderson, Las Vegas, Paradise, Spring Valley, Sunrise Manor), NEW MEXICO (Albuquerque, Las Cruces, Rio Rancho, Roswell, Santa Fe), TEXAS (El Paso, San Elizario, Socorro).

Desert Southwest Neighboring Regions

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

Temperature and Precipitation November 2020 to October 2021

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

Reader Comments

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To Patricia in Las Vegas, NV

Hi, Patricia. Congratulations on finding your inner gardener. You don't say if you have any land to work with, but everyone can begin with container gardening. Use one to five gallon pots for greens, tomatoes, bell peppers, cucumbers, etc. The best tip anyone can give you is just begin, you will learn so much by doing. This web site and Mother Earth have tons of good advice on growing food plants. Best of luck to you.

Monsoon 2020

Any idea as to this years Arizona monsoon rain and how much we'll get?

Summer in the Winter

@Jake. I grew up in San Diego and spent many winters working on my tan on the sands of La Jolla Cove. The beaches would be buzzing end of January beginning of February. This was late 70's early 80's so it's not a recent phenomenon.

first timer

Who here is starting a garden due to the panic.. that is me.. I am a first time gardener.. got out of depression by smoking pot.. but now I am an incessant learner and now I want to start gardening- it really helped me out of my depression.. Anyways.. Everybody who knows, knows that there is definitely weather changes coming.. but as long as they keep negating the facts.. the conversion is nipped in the bud.. We can only count on ourselves for survival in ALL CASES... this government is inept.. anyhoo.. I am here for the facts and would appreciate help, especially since I live in LAS VEGAS, NV.. WISH ME LUCK PLEASE.. and send me tips..

Southwest heatwave in January

Every year for the last (omg!)15 years now!, I’ve been observing a week long, (sometimes 2; 2016) heat wave during the last 10-14 days of January. Here in Los Angeles we will see 84*F for a period of at least 4 days. I’m wondering if the F.A. Has kept track of this?, and if so, do they have a prediction for 2020? Today seems to be getting warm. I believe it’s in the high 60’s low 70’s this morning.
Anyway, i seem to be the only person I’m aware of that keeps a record of this micro-summer, which seems to happen RIGHT BEFORE it resumes into flat out WINTER for Feb, March.

I return to your page every

I return to your page every year and come back with the same question, where did winter go in western Texas?

almost 5 consecutive years without snow fall, all due to the weather change

When years ago snow fall up to 4 times a year.

So where did winter go specifically in the area of el paso tx (west texas)?

Nobody questions these weird weather anomalies?

So how is it that the temps in high desert are 10 degrees warmer during the HOTTEST months..then dump 10 degrees COLDER during the winter? And nobody questions it? I mean come on if we are experiencing global warming I should of been able to drive the high elevations through Thanksgiving right? Grow strawberries into December?
Immediately after Halloween the temps do a reversal & nosedive, killing our garden WAYYYY before it should of in our area. Buried the only route north besides California in 6 ft of snow, which forces all travel NORTH to take I- 5 adding 6 hrs to the route.
So basically the weather "tweekers" are making it now impossible to grow anything without a greenhouse because it's too hot by May & too cold by October.
The west side of the US is becoming unlivable, both financially & environmentally.
And NOBODY questions it....unreal.

Indian summer

It has been an Indian Summer here in Beatty Nv. ,lows in the 50`s highs in the upper70`s no wind,no rain for almost 2 wk`s

Rain over this winter?

I'd like to know about rainfall predicted for Albuquerque/Rio Rancho area. What month is the best time for roof replacement? The expected rainfall specified by the week expected would be enormously helpful. Thanks.

Winter Predictions for Show Low

I love how I search for winter predictions for Show Low, AZ and it shows me the winter predictions for all of the SW of the United States. For those who are not familiar with Show Low, we are located in a Pine Forest in the White Mountains of Eastern AZ. Our climate is vastly different from the desert areas of the SW that this is focused on. Overall it is just very inaccurate, and if I wanted to see predictions for the SW as a whole, then I would have searched that. Seeing how it is going to be down in the desert areas of Phoenix and Tucson is practically irrelevant to me. I have read other people's comments, and from the looks of it, it seems that this website is just overall not very accurate.