Will - for some reason, your question reminds me of the famous Zig Ziglar quote:

"People often say motivation doesn't last.  Well, neither does bathing - well never does bathing - that's why we recommend it daily".  

That may be considered somewhat excessive for some but I hear that's what the national car wash lobby says.  

Will, today we are expecting about 1 inch of rain in the Phoenix metro, and it's washing my car, too. :) That will be it, for the month of February, I think.

Honestly, clean cars are rare here. Anytime I see one, I wonder what the story is because obviously that person doesn't ever drive around. Haha

I had mine perfectly done inside and out yesterday, and today it rains. LOL

Because we are all about manifestation.

HOWEVER I also got new wiper blades yesterday as well. LOL

Truly, it depends on 'where I been and where I'm going'.

If I've been driving dirt roads all week on my industrial, and going to show pretty medical buildings today . . . needed done.

Never, when spring comes they will get washed in the rain, other than that I dont fight nature by trying to keep a clean car when I know it will just get splashed with mud and salt on the way home from the car wash.

A lot.  I have a membership at the local car wash and can drive through for a wash every day if I want.  We had a lot of rain so I went often the last 6 weeks, I'd say at least 10 times

February: Interior weekly, exterior twice per month typically due to rain.

Weekly most of the year and it's done for free about every 8th wash.

I did a few weeks ago and it needs another.

We have been having spring weather and we are overdue to clean all our cars.

With four kids, I'm doing well to get a shower. Therefore, the vehicle gets little to no attention.

A couple of times and especially the day of meeting people.

I have a unlimited monthly washes subsciption so I go whenever it needs it.  Now I need to do the interior!! 

Nothing different for me in Febaruary when it comes to washing my car than in any other month.

I would say every 3 days slightly more if it snows.

I hate to admit this, but I was my car two or three times a year, maybe.

Feb and March is the middle of the DRY season AND the season for Oak, Pine and Palm pollen.

A few hours and the ride is coated, completely covered in green, yellow or white pollen. So, the need requires  a wash every 3 days or never take the ride out of the garage.

Depends upon the weather, this year. NONE

Same here, Will! I keep mine clean but, every day that I would normally have it done, it rained here. It's definitely in need of a good wash!

I washed mine (an I mean I washed mine) for the second time this month out in our driveway today Will Hamm . It was a beautiful 43 degree day in Minot ND.

Never, but my wife will about once on average.

As necessary. When needed. 

Weekly, unless I didn't drive much or get it dirty/dusty.  It's free from the place where I bought my car, which is close to home, so why not.  Now that you mention it, it's raining today and my car did get wet.  I think I'll schedule a wash for next week.

I buy a wash pass. $49.99 and all the car washes i want a month, 2 1/2 washes a month is break even. so i try to go Monday and Fridays. 

The weather bullies me too. My garages and back of my house get a lot of sun causing me to do things early or postpone them. I work best with it best I can

once a week....every week....

That is funny you ask!  I just went to the car wash yesterday, which was waaaay overdue.  The last time it was washed was October.  I try to at least vacuum out my car once a week but the outside tends to get neglected in the winter.

Will,

We had it washed last week, and it rained in Santa Barbara today, and when we got back it rained again...Now, it is sunny unless another shower comes our way.  A

Mine is way overdue but been postponing it for weeks. Mine is parked in a carport and my outside cats keeps jumping on my hood, nothing I can do about that. I wish I had a carwash that was affordable but at $20+ each time it gets expensive. Last time I did it by myself, took over 2 hours to do the exterior. But, mine is due for a tuneup next week, perfect time to do it!

I get my car washed when I can no longer stand the dust and dirt build-up.

Snow? Not in the S. F. Bay Area.

The road salt quickly overtakes the car was

I wait until the worst of Winter is over otherwise it would be covered in dirt & salt after driving 3 kms post wash.