Most comfortable places in the US in December

Ranked by the most days with highs of 65-80°F and a dew point under 60°F in December (cities with humidity data only). First: Anaheim, CA (22 days), of 340 cities.

Most comfortable places in the US in December
Rank	City	Comfortable days	High	Wet days
1	Anaheim, CA	22 days	68°F	6
2	Huntington Beach, CA	22 days	68°F	5
3	Costa Mesa, CA	22 days	68°F	6
4	Irvine, CA	22 days	68°F	6
5	Palm Springs, CA	21 days	69°F	2
6	San Tan Valley, AZ	20 days	67°F	4
7	Los Angeles, CA	20 days	67°F	6
8	El Cajon, CA	19 days	69°F	6
9	West Covina, CA	19 days	67°F	6
10	Escondido, CA	19 days	68°F	6
11	Gilbert, AZ	19 days	66°F	4
12	Mesa, AZ	19 days	66°F	4
13	Phoenix, AZ	19 days	66°F	4
14	Glendale, AZ	19 days	64°F	4
15	Peoria, AZ	19 days	64°F	4
16	Burbank, CA	18 days	68°F	5
17	Goodyear, AZ	18 days	64°F	3
18	Santa Clarita, CA	18 days	69°F	6
19	Tucson, AZ	18 days	66°F	4
20	Pasadena, CA	17 days	67°F	6
21	Solvang, CA	17 days	67°F	7
22	Long Beach, CA	17 days	67°F	5
23	Riverside, CA	17 days	67°F	4
24	Temecula, CA	16 days	65°F	5
25	St. Augustine, FL	16 days	69°F	8

Which states lead

California (16 of the top 25), Arizona (8 of the top 25), Florida (1 of the top 25). The top 25 range from 22 days to 16 days; the median across all 340 cities is 2 days.

The other end: fewest comfortable days in December

Most comfortable places through the year

Month	First place	Comfortable days
January	Palm Springs, CA	22 days
February	Glendale, AZ	20 days
March	Anaheim, CA	24 days
April	Anaheim, CA	22 days
May	Torrance, CA	26 days
June	Santa Maria, CA	27 days
July	Salinas, CA	28 days
August	Santa Maria, CA	28 days
September	Everett, WA	24 days
October	Oceanside, CA	25 days
November	San Diego, CA	23 days
December	Anaheim, CA	22 days

340 cities with data for this measure. Folded suburbs share their lead city's values and are not listed separately. Methodology.