Casper, WY 21 December Weather

Altitude - 1557m | 42°52′1″N,106°18′47″W | map (OSM)

Casper, WY

°F

12 pmSunny25mphSW

Thu, December 11, 202512:52 PM (GMT -07:00)

Climatic norm in Casper, WY Dec 21

13°
23°
34°

minimum
average
maximum

Sunday Dec 21 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	37°	38°	39°	44°	51°	53°	47°	45°
wind	16mph	17mph	16mph	19mph	22mph	19mph	17mph	17mph
pressure in	24.72	24.71	24.69	24.72	24.73	24.72	24.64	24.64

Saturday Dec 21 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	34°	34°	33°	39°	51°	52°	43°	41°
wind	13mph	12mph	14mph	19mph	23mph	17mph	15mph	17mph
pressure in	24.93	24.93	24.92	24.94	24.93	24.86	24.79	24.77

Thursday Dec 21 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	37°	35°	34°	38°	49°	48°	39°	36°
wind	11mph	11mph	12mph	15mph	17mph	14mph	11mph	12mph
pressure in	24.82	24.83	24.85	24.92	24.95	24.91	24.88	24.90

Wednesday Dec 21 2022	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	27°	26°	23°	9°	-9°	-13°	-18°	-21°
wind	23mph	24mph	25mph	21mph	21mph	16mph	9mph	8mph
pressure in	24.71	24.66	24.59	24.64	24.64	24.70	24.77	24.84

Tuesday Dec 21 2021	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	36°	35°	33°	35°	43°	44°	38°	36°
wind	24mph	21mph	15mph	20mph	23mph	20mph	20mph	21mph
pressure in	24.74	24.75	24.78	24.80	24.78	24.73	24.72	24.72

Monday Dec 21 2020	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	37°	37°	38°	39°	43°	44°	41°	41°
wind	18mph	18mph	18mph	20mph	21mph	21mph	21mph	22mph
pressure in	24.81	24.81	24.82	24.84	24.81	24.77	24.76	24.75

Saturday Dec 21 2019	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	31°	31°	32°	36°	39°	39°	37°	36°
wind	24mph	23mph	24mph	26mph	25mph	22mph	20mph	22mph
pressure in	24.99	24.97	24.96	24.98	24.95	24.90	24.90	24.88

Friday Dec 21 2018	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	35°	35°	37°	40°	46°	44°	35°	29°
wind	22mph	23mph	24mph	29mph	24mph	17mph	12mph	9mph
pressure in	24.65	24.58	24.56	24.59	24.66	24.67	24.62	24.61

* Casper, WY weather for December 21 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 Casper, WY Weather for December 21, 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 21 for previous years is presented.