Portagees + Irish for the dairying. And yeah, in that part of California it’s ammnds.
OK I turned to Google for clips of Californian farmers saying “almond”. Most say “oll-mond”, but one guy standing amidst the trees says “Al-mond” (as in, “You Can Call Me Al”).
The voiceover on this vidclip says “Oll-mond” and so does “Paul Wenger from Modesto” of the California Farm Bureau:
So does this guy from “north of Fresno”:
This guy in the intro says “Oll-mond” too, but the guy in the red sweater who’s the actual farmer (who has a distinctly different accent) says “Al-mond”.
So far, I’m still looking for a clip of someone - anyone, anywhere - saying “almond to rhyme with salmon” the way I described in the OP… Maybe I should try looking for Woody Allen saying “almond”?!
I found one! This guy from Bella Viva Orchards from Hughson, CA which Google Maps shows me is near Modesto.
ETA: in that clip he even discusses the proper pronunciation being “Oll-monds”, at around the 1:20 mark. In the same sentence where he pronounces “Wikipedia” with a long I in the first syllable (“Wy-kipedia”). Man, I can’t be associated with this! I have to shake this habit, but after 25 or 30 years it’s gonna be tough!
Hmm, more data. My wife and her parents, multi-generational New Yorkers, all say almond as rhyming with salmon. They talk rather like Woody Allen, who is about 12 years older than they are. I feel somewhat vindicated, in a weird way. The search continues…!
I also pronounce the ‘l’ in walk/talk, and have all my life (I’m 51 now).
I also pronounce the ‘h’ in “Wil Wheaton.”
Wait wait wait - besides for the ‘l’ sound, those two words have completely different vowel sounds in the first syllable.
So now I’m trying to figure out whether you say “ammond” with an ‘a’ from “cat,” or whether you say “sahhhlmon” with the broad-a sound from “walk.” Just saying you pronounce those two the same doesn’t help me.
It’s the “a” from cat.
::nods::
I pronounce the x (as an x not as a z) in xylophone.
I do not claim, however, to pronounce the k and the gh in knight.
Actually, in this Wikipedia article, it says that some Southerners do pronounce the “l”
It even gives a link to a sound file that doesn’t seem to work for me, but might for others.
Hereis a map of the variation.
Probably I have heard it, but it never registered somehow…
I’m from Michigan, and I also pronounce the ‘L’ in all of those words except walk and talk.
Incidentally, I recently figured out why I think it sounds weird to leave out the L in wolf, even though I know I’ve heard people do it on TV all my life. It’s because, when I think about making it silent, I think of making it sound like woof, which for me is a more fronted sound, like a smaller dog would say. But wolf uses a back sound, due to the L being made in the back of the throat, so, even when the vowel is silent, the vowel stays towards the back.
Oh, and about the only word I can think of with a silent L in my dialect is half.
Because it is weird. Is the “l”-less pronunciation of “wolf” that common? Neither dictionary.com, Marriam-Webster, nor Wiktionary list the “l”-less variant.
Calf?
OK, this idiosyncrasy of mine (as it seems to be, along with my wife and parents-in-law, who I did not pick it up from, I don’t think) came up as an object of contention yet again recently. Thanks to the tradition of holiday nuts.
This time, a resort to Google/YouTube on “how to pronounce almond” got this as one of the top hits, where the guy (to my ear) says it pretty much the way I do, at least the first time or two he says it (he also seems to say it two different ways):
It’s also the second of the given pronunciations in the Merriam Webster online dictionary at Almond Definition & Meaning - Merriam-Webster, almost exactly.
While the nut is on the tree, you would pronounce the “L” … awl-mund.
During harvest, a machine grabs the tree and shakes the “L” out of them, then it’s pronounced without that sound … awe-mund.
Where y’all from, hun? My DH is from PA and drives me nuts when he says “SOL-mun” instead of “SAMM-un” 
Did you mean: where “you-uns” from?
lol no, i believe “y’uns/you’uns” is the PA pronunciation. Im not from PA, he is.
I grew up with all-mund, so that’s how I pronounce it. Of course, my mother also said ‘rag-out’ instead of ‘ragoo’, so there’s that. The French word is amande, and since the English world stuck an ‘L’ in there, I pronounce it. I draw the line at off-ten, however.
:Slight hijack:
Since we’re on the subject of word pronunciation…
How do y’all say pecan? I’ve always pronounced it as pi-con, with the pi sound as in pick.
In junior high I had a teacher that insisted that it should be pronounced pee-can.
I refused to say it that way back then, and I ain’t about to change, now. 
I say something like awl-mund, but the l is very reduced; the tongue does not touch the alveolar ridge or upper teeth as with the l in “lake”. The l in words like “calm” and is even more reduced, but not entirely absent. The words “walk” and “wok” are not perfectly homophonous to me. “Wok” is clipped, and “walk” is a bit drawn out; this drawing out can be said to be because of the l, but its sound is only a teensy bit l-like.