2018 Long Range Weather Forecast for Calexico, CA

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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 annual Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific. If your city is located inside a region, the region's forecast will apply to you.

Free 2-Month Weather Forecast

May 2018 Long Range Weather Forecast for Desert Southwest
DatesWeather Conditions
May 1-9Scattered showers, cool east; sunny, hot west
May 10-21Sunny; cool east, warm west
May 22-27T-storms, then sunny, cool
May 28-31Sunny, hot
Maytemperature 74.5° (2° below avg. east, 3° above west)
precipitation 0.5" (avg.)

June 2018 Long Range Weather Forecast for Desert Southwest
DatesWeather Conditions
Jun 1-3Sunny, hot
Jun 4-14T-storms, then sunny, cool
Jun 15-23Sunny, hot
Jun 24-30Scattered t-storms east, sunny west; hot
Junetemperature 85° (2° above avg.)
precipitation 0.4" (0.1" below avg.)

Annual Weather Summary: November 2017 to October 2018

Winter will be colder than normal, with above-normal precipitation. The coldest periods will be from late November into early December and in late December and mid-January. Snowfall will be above normal in the east and near to below normal in the west, with the snowiest periods in late December, early and mid-January, and early February. April and May will be slightly rainier than normal, with temperatures below normal in the east and near normal in the west. Summer will be slightly hotter than normal, with the hottest periods in mid- and late June and early August. Rainfall will be below normal in the northwest and above normal in the southeast. September and October will be cooler and drier than normal.

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 (Cortez, Dolores, Durango, Mancos, Towaoc), NEVADA (Henderson, Las Vegas, North Las Vegas, Pahrump, Winchester), NEW MEXICO (Albuquerque, Farmington, Las Cruces, Roswell, Santa Fe), TEXAS (El Paso, Fabens, Pecos, San Elizario, Socorro), UTAH (Aneth, Blanding, Bluff, Montezuma Creek, White Mesa).

Desert Southwest Neighboring Regions

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

Temperature and Precipitation November 2017 to October 2018

Temperature and Precipitation Graph

Reader Comments

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2018 Arizona Monsoon

According to the almanac the precipitation forecast for Arizona (Southern part of the state) for our annual monsoon season, is to be below average. Yet we are reading in the news that they say there is a good chance for above average rainfall for us. What's it going to be?? No one really knows, do they? Except God. I will keep my trust in Him for our weather.

Northern Arizona - dry, dry, dry

We live in Prescott Valley where there were wildfire evacuations this past week - it's a mile high desert climate -- and was a welcome relief from Phoenix where we used to live. Two Summers ago we had record rains in August and now I don't even need one hand to count the number of times it's rained in the past year (and that's being generous because you need to include sprinkles!). Let's do a group rain dance for some good monsoons for all of the Southwest!!!

Ruidoso, NM - Hot & Dry

Just read Paula's comment about weather in Roswell, NM, about 75 miles east of Ruidoso. While Roswell is typically warmer than Ruidoso most of the year (Ruidoso's at 7,200 ft, Roswell at 3,500) the rain situation is just as critical. Can't even remember the last time it rained, seems like well over a year ago. On top of that, no snow fall this past winter. No snow cap at all. Hunters here say the tall trees here haven't changed to that dry dull color they get from lack of moisture (hopefully trees are getting moisture from underground because risk of fire here is severe every day), but for human folk, we desperately need some rain. Also, it's only early May and today was record high of 85. With mid to high 80's expected to remain for a few weeks. I've lived here for 15 years and definitely see a warming trend. I love New Mexico, but moved up in the mountains for the cooler weather and four seasons. Now it feels like the White Sands Desert weather is slowly creeping up the mountain for good. It's scary to think that this may become the norm for us at higher elevations. Next move might have to be to Belize. At least I can jump in crystal blue water and cool off!

moisture and heat

we have not had any moisture in Roswell NM for about 175 days and here it is early April and today we are at 94 degrees. You don't even include any of this in your info for the desert.

Heat and Dust in NM

I am currently out of state but friends are telling me of terrible dust and how there is now a red-flag alert for AZ and NM for fires...it is surprising not highlighted here somehow...

Temperature

Phoenix will be getting hotter and not cooler as too much buildings being built and not being protected from holding in heat as only one in a thousand do to keep heat away and try to keep it cooler.
Eventual the heat here will keep breaking records as it has the past few years since 2000

temperature in Phoenix

Hi, Edward, I completely agree with your analysis. I am currently reading about how to reduce my carbon footprint and trying to paint my house shingles with a paint that is suppose to reduce surface temperature from 174degrees to just 10degrees above outside temperature. Why doesn't anyone or any agency do anything to combat this affect. Why do people not have any common sense? I am just in sales and not a particularly smart person but at least i am trying to better myself and not leave a mess for my children.

Forecast correct for Phoenix

My first time here but had been wondering if the oldtime Almanac forecasts were available, as I care for outdoors animals and have been so concerned about them with the winter so cold, that is, cold for us Phoenicians. Sure, our temps are warm for the rest of the country but if living here for a while, one's temp adjusts and so this is indeed cold for us here. In fact, I don't recall temperatures this cold in my 20 years here.
Also, I have observed a '20 degree cooler feeling factor' with our very low humidity. Namely, no matter what the temperature, with the dryness here, it always feels 20 degrees cooler - based on my growing up experience in Wisconsin - than the actual temperature. So, 40 degrees here, as the temp here is right now, feels like 20 degrees. If it were 80 degrees, feels like 60. If 110 degrees, yeah, it's hot, feels like 90 degrees.
Thanks for the forecast so I can best help the outdoor animals I care for! Will look around your great site! Many thanks!

Forecast incorrect

Southern NV - Las Vegas area during December, January, & February have been unusually warm. Daytime temps averaging mid 60's to low 70's. My apple trees are blooming - in the first week of February! My summer tomatoes are still producing and never died back. My blueberry bushes only went dormant for 3 weeks because I had to force dormancy by removing the leaves. Global warming & climate changes are happening.

Vegas in winter

Thanks for the update!

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