December 2025 was very much warmer than average, with precipitation below average. The average temperature was 36.0 degrees, about 9.0 degrees above average, making it the warmest December on record. (The previous warmest December occurred in 1980 with an average temperature of 35.4 degrees.) Both mild overnight lows but especially the warm daytime temperatures contributed to the above average readings.

In fact the average high for the month was 51.2 degrees, about 10 degrees above average. There were 19 days of highs over 50 degrees, and 15 of those days (half of the month!) had highs of 55 degrees or higher (beating the old record of 12 days above 55 set in 1939).

Record daily warm highs were set on 7 days during the month, with a stretch of 6 days in a row from the 19th to the 24th as highs were in the upper 50s to low 60s. The warmest high for the month of 63 degrees occurred on the 23rd, beating the old record by 6 degrees! (The warmest reading ever in December was 65 degrees which occurred on the 27th in 1980.)

The month was also on the dry side with only 0.26 inches of precipitation at my northside location, about a third of the monthly average. Similar amounts occurred in most areas in the valley, with a little more in the southern foothills though.

The first week of the month was cold and wet, with almost all of the precipitation occurring on the 3rd and 4th as highs were in the 30s to mid 40s. It then gradually warmed up the second week and continued abnormally warm through about the day after Christmas. Every single day from the 10th through the 26th had highs of 50 degrees or more.

It cooled down by Christmas weekend though with a bit of rain and snow, along with highs in the 40s and lows in the teens. Warm and dry conditions returned for the last 2 days of the month with highs back into the 50s.

The warmest high was 63 degrees on the 23rd, while the coldest high was 33 degrees on the 4th. The coldest low was just 10 degrees on the 5th, while the warmest low was 34 degrees on the 27th.

Overall, wind speeds for the month were about average, with a few days having peak gusts over 25 mph. Strongest winds occurred on the 3rd and 28th, with a peak gust of 30 mph on the 28th.

Here are the actual numbers for the month at my location…

Average Temp . . . . 36.0 degrees, +9.0 degrees above average (1st Warmest)

Average High . . . . . 51.2 degrees, +9.9 degrees above average (2nd Warmest)

Average Low. . . . . . 20.9 degrees, +8.2 degrees above average (3rd Warmest)

Total Pcpn . . . . . . . . 0.26 inches, -0.43 inches below average

Total Snow . . . . . . . 3.0 inches, -4.9 inches below average

DEC 2025 DAILY DATA for 4 NNW Taos

DATE	HIGH	LOW	DAILY DEP.	MON. DEP.	PCPN	SNOW	REMARK
1	42	18	-0.9	-0.9
2	46	13	-1.7	-1.3
3	38	24	-0.2	-0.9	0.18″	2.5″
4	33	15	-6.2	-2.2	0.02″	0.4″
5	36	10	-6.3	-3.1
6	47	18	+3.3	-2.0
7	43	22	+3.5	-1.2
8	48	17	+3.7	-0.6
9	49	17	+5.2	0
10	51	22	+8.5	+0.9
11	59*	23	+12.7	+2.0			*Record warm high
12	60	21	+12.2	+2.8
13	57	20	+11.6	+3.5
14	56	18	+10.7	+4.0
15	53	18	+10.0	+4.4
16	57	16	+10.6	+4.8
17	56	20	+11.9	+5.2
18	53	28	+14.0	+5.7
19	58*	28	+17.0	+6.3			*Record warm high
20	57*	28	+16.0	+6.8			*Record warm high
21	58*	25	+15.7	+7.2			*Record warm high
22	62*	28	+19.5	+7.8			*Record warm high
23	63*	21	+16.2	+8.1			*Record warm high
24	61*	29	+20.2	+8.6			*Record warm high
25	55	31	+18.3	+9.0
26	52	27	+14.5	+9.2
27	46	34	+15.5	+9.5	0.05″
28	41	19	+5.8	+9.3	0.01″	0.1″
29	43	12	+3.1	+9.1
30	50	11	+5.8	+9.0
31	56	14	+10.9	+9.0
AVGS/ TOTAL	51.2	20.9	36.0	+9.0	0.26″	3.0″

DAILY DEP. – Departure from the long term daily average temperature

MON. DEP. – Cumulative departure from the long term monthly average temperature

PCPN – Precipitation

T – Trace of precipitation

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