We can see how MoM pricing started to slow at end of summer, only to have it pick up again in 4Q21:

San Diego Non-Seasonally-Adjusted CSI changes

Observation Month
SD CSI
M-o-M chg
Y-o-Y chg
Jan ’20
264.04
+0.2%
+5.1%
Feb
265.34
+0.5%
+4.6%
Mar
269.63
+1.6%
+5.2%
Apr
272.48
+1.1%
+5.8%
May
273.51
+0.4%
+5.2%
Jun
274.91
+0.5%
+5.0%
Jul
278.00
+1.1%
+5.4%
Aug
283.06
+1.8%
+7.6%
Sep
288.11
+1.8%
+9.4%
Oct
292.85
+1.6%
+11.5%
Nov
295.64
+1.0%
+12.3%
Dec
297.52
+0.6%
+13.0%
Jan ’21
301.72
+1.4%
+14.3%
Feb
310.62
+2.9%
+17.1%
Mar
320.81
+3.3%
+19.1%
Apr
331.47
+3.3%
+21.6%
May
341.05
+2.9%
+24.7%
Jun
349.78
+2.6%
+27.2%
Jul
355.33
+1.6%
+27.8%
Aug
357.11
+0.5%
+26.2%
Sep
359.88
+0.8%
+24.9%
Oct
363.80
+1.1%
+24.2%
Nov
367.62
+1.1%
+24.3%

Mortgage rates didn’t move much in October and November, holding between 3% and 3.25% for the average on the popular 30-year fixed. While that was slightly higher than the early summer levels, it was still historically low and considerably lower than where rates are now. Rates are now about 75 basis points above year-ago levels. Low rates over the last two years have given buyers more purchasing power and consequently fueled today’s sky-high prices.

“We should soon begin to see the impact of increasing mortgage rates on home prices,” added Lazzara.

A recent report from Realtor.com found that 14 out of the top 50 largest U.S. cities experienced listing price declines over the prior year in December.

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