St. Helena, CA 9 December Weather

Altitude - 81m | 38°30′18″N,122°28′12″W | map (OSM)

St. Helena, CA

°F

7 pmClear2mphE

Mon, December 1, 20257:34 PM (GMT -08:00)

Climatic norm in St. Helena, CA Dec 9

38°
48°
58°

minimum
average
maximum

Tuesday Dec 9 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	47°	46°	45°	49°	57°	61°	54°	49°
wind	1mph	1mph	1mph	1mph	2mph	2mph	1mph	1mph
pressure in	29.91	29.90	29.90	29.93	29.90	29.85	29.85	29.87

Monday Dec 9 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	45°	40°	42°	47°	60°	63°	52°	44°
wind	2mph	3mph	5mph	6mph	7mph	6mph	5mph	6mph
pressure in	29.84	29.85	29.87	29.90	29.91	29.89	29.91	29.94

Saturday Dec 9 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	39°	36°	36°	42°	54°	60°	49°	41°
wind	3mph	2mph	1mph	2mph	2mph	2mph	1mph	1mph
pressure in	29.96	29.97	30.00	30.04	30.04	30.02	30.04	30.06

* St. Helena, CA weather for December 9 is prepared on the basis of GFS data and is intended for personal use in the "as is" (as is) format. You can see on this page St. Helena, CA Weather for December 9, as well as compare air temperature with the climate norm for this date. Perhaps you will be interested - for comparison, the actual weather on December 9 for previous years is presented.