Casper Weather in 2021

Historical record of Casper, Wyoming weather for the year 2021 based on NOAA data.

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2021 Casper Weather Extremes
Highest temperature	101 °F	June 15
Lowest temperature	-24 °F	February 14
Highest daily low	66 °F	July 29
Lowest daily high	-5 °F	February 12
Most daily precipitation	1.2 inches	October 19
Most daily snow	21.2 inches	March 14
Total annual precipitation	14.5 inches	-
Total annual snow	108.1 inches	-

What was the hottest temperature in Casper in 2021?

The highest temperature recorded in Casper, Wyoming in 2021 was 101 °F which happened on June 15.

Highest Temperatures: All-Time By Year

Highest Temperatures in Casper in 2021

Rank	Temperature	Date
1	101 °F	Jun 15
2	100 °F	Jul 27
3	99 °F	Jun 14
4	97 °F	Jul 26
4	97 °F	Jul 25
4	97 °F	Jul 19
4	97 °F	Jul 18
8	96 °F	Aug 14
8	96 °F	Jul 8
8	96 °F	Jun 16

What was the coldest temperature in Casper in 2021?

The lowest temperature recorded in Casper, Wyoming in 2021 was -24 °F which happened on Feb 14.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Casper in 2021

Rank	Temperature	Date
1	-24 °F	February 14
2	-15 °F	February 11
3	-12 °F	February 12
3	-12 °F	February 8
5	-9 °F	December 28
5	-9 °F	December 17
5	-9 °F	February 13
5	-9 °F	February 7
9	-8 °F	February 9
10	-6 °F	February 10
10	-6 °F	January 25

January 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	32	13	0.00	0.0
January 2	36	23	0.00	0.0
January 3	37	23	0.00	0.0
January 4	42	23	0.00	0.0
January 5	40	14	0.09	1.6
January 6	31	12	0.00	0.0
January 7	38	20	0.01	0.0
January 8	33	9	0.00	0.4
January 9	28	6	0.01	0.1
January 10	31	12	0.00	0.0
January 11	33	20	0.00	0.0
January 12	39	23	0.00	0.0
January 13	48	26	0.05	0.4
January 14	30	13	0.00	0.0
January 15	38	13	0.00	0.0
January 16	36	11	0.08	1.4
January 17	38	17	0.00	0.0
January 18	34	14	0.00	0.3
January 19	32	11	0.00	0.0
January 20	42	25	0.00	0.0
January 21	36	17	0.01	0.0
January 22	27	20	0.01	0.3
January 23	23	4	0.22	3.0
January 24	30	7	0.00	0.0
January 25	21	-6	0.00	0.0
January 26	19	3	0.00	0.1
January 27	29	13	0.00	0.0
January 28	43	28	0.00	0.0
January 29	51	34	0.00	0.0
January 30	44	24	0.00	0.0
January 31	41	21	0.00	0.0

February 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	47	29	0.00	0.0
February 2	53	35	0.00	0.0
February 3	46	7	0.11	0.5
February 4	30	4	0.00	0.0
February 5	38	15	0.03	1.0
February 6	24	2	0.01	0.2
February 7	13	-9	0.02	0.4
February 8	18	-12	0.00	0.0
February 9	9	-8	0.00	0.0
February 10	10	-6	0.00	0.0
February 11	2	-15	0.00	0.1
February 12	-5	-12	0.03	2.0
February 13	-4	-9	0.00	1.1
February 14	-3	-24	0.00	0.0
February 15	26	-5	0.00	0.0
February 16	34	15	0.01	0.1
February 17	29	14	0.03	0.3
February 18	25	10	0.03	0.6
February 19	39	17	0.00	0.0
February 20	37	21	0.05	1.1
February 21	35	11	0.00	0.0
February 22	45	26	0.00	0.0
February 23	44	17	0.06	0.8
February 24	32	9	0.00	0.0
February 25	35	8	0.00	0.0
February 26	38	20	0.00	0.0
February 27	31	17	0.03	0.4
February 28	34	6	0.00	0.0

March 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	42	19	0.00	0.0
March 2	52	32	0.00	0.0
March 3	55	18	0.00	0.0
March 4	56	14	0.00	0.0
March 5	56	25	0.00	0.0
March 6	61	33	0.00	0.0
March 7	60	24	0.00	0.0
March 8	66	29	0.00	0.0
March 9	53	30	0.22	3.0
March 10	31	13	0.23	8.9
March 11	30	1	0.00	0.0
March 12	31	4	0.00	0.0
March 13	33	26	0.40	5.1
March 14	32	24	0.85	21.2
March 15	36	21	0.32	3.2
March 16	36	25	0.30	3.7
March 17	38	10	0.00	0.1
March 18	40	2	0.00	0.0
March 19	50	17	0.00	0.0
March 20	45	30	0.10	0.7
March 21	39	17	0.24	3.0
March 22	43	10	0.00	0.0
March 23	35	21	0.04	0.7
March 24	40	12	0.00	0.0
March 25	42	24	0.00	0.0
March 26	41	29	0.04	0.3
March 27	44	22	0.09	1.0
March 28	53	28	0.00	0.0
March 29	54	20	0.00	0.0
March 30	36	18	0.00	0.0
March 31	49	17	0.00	0.0

April 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	67	25	0.00	0.0
April 2	69	36	0.00	0.0
April 3	74	35	0.00	0.0
April 4	75	32	0.00	0.0
April 5	66	41	0.00	0.0
April 6	45	31	0.00	0.0
April 7	58	31	0.00	0.0
April 8	65	30	0.00	0.0
April 9	47	28	0.17	1.3
April 10	65	28	0.00	0.0
April 11	45	27	0.02	0.0
April 12	37	22	0.06	0.7
April 13	38	19	0.00	0.0
April 14	36	22	0.06	0.9
April 15	29	23	0.17	2.6
April 16	38	23	0.06	0.7
April 17	48	23	0.00	0.0
April 18	60	29	0.00	0.0
April 19	37	10	0.25	4.4
April 20	33	13	0.00	0.0
April 21	44	15	0.00	0.0
April 22	57	15	0.00	0.0
April 23	44	22	0.00	0.0
April 24	61	19	0.00	0.0
April 25	70	34	0.00	0.0
April 26	71	39	0.00	0.0
April 27	49	33	0.08	0.0
April 28	64	26	0.00	0.0
April 29	73	31	0.00	0.0
April 30	84	38	0.00	0.0

May 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	77	48	0.01
May 2	56	38	0.08
May 3	50	35	0.00
May 4	58	28	0.03
May 5	62	28	0.02
May 6	73	26	0.00
May 7	83	30	0.00
May 8	64	28	0.00
May 9	55	25	0.00
May 10	43	35	0.07
May 11	52	31	0.00
May 12	64	27	0.00
May 13	74	29	0.00
May 14	68	42	0.03
May 15	70	37	0.29
May 16	67	40	0.00
May 17	72	40	0.00
May 18	78	46	0.00
May 19	73	44	0.00
May 20	83	40	0.00
May 21	43	33	0.05
May 22	61	33	0.00
May 23	67	44	0.00
May 24	67	42	0.00
May 25	72	39	0.00
May 26	74	39	0.02
May 27	71	31	0.00
May 28	80	39	0.00
May 29	71	41	0.00
May 30	66	40	0.00
May 31	75	34	0.00

June 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	78	49	0.00
June 2	82	41	0.00
June 3	88	51	0.00
June 4	95	49	0.00
June 5	92	52	0.00
June 6	90	57	0.00
June 7	93	59	0.00
June 8	93	46	0.00
June 9	92	46	0.00
June 10	92	52	0.00
June 11	78	42	0.00
June 12	89	37	0.00
June 13	93	46	0.00
June 14	99	55	0.00
June 15	101	49	0.00
June 16	96	52	0.00
June 17	94	55	0.00
June 18	91	47	0.00
June 19	94	50	0.00
June 20	76	48	0.44
June 21	80	50	0.00
June 22	93	46	0.00
June 23	95	51	0.00
June 24	87	52	0.00
June 25	69	53	1.09
June 26	71	53	0.38
June 27	73	51	0.06
June 28	75	50	0.00
June 29	80	47	0.00
June 30	84	50	0.00

July 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	84	57	0.19
July 2	89	54	0.00
July 3	93	60	0.00
July 4	93	55	0.00
July 5	86	58	0.62
July 6	82	55	0.00
July 7	92	55	0.00
July 8	96	54	0.00
July 9	95	52	0.00
July 10	84	49	0.00
July 11	89	49	0.00
July 12	88	54	0.01
July 13	89	57	0.29
July 14	78	53	0.00
July 15	89	52	0.00
July 16	93	54	0.00
July 17	94	50	0.00
July 18	97	51	0.00
July 19	97	52	0.00
July 20	93	52	0.00
July 21	94	61	0.00
July 22	95	55	0.00
July 23	94	59	0.00
July 24	92	50	0.00
July 25	97	57	0.00
July 26	97	54	0.00
July 27	100	60	0.00
July 28	95	60	0.00
July 29	84	66	0.09
July 30	87	63	0.63
July 31	84	58	0.00

August 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	84	51	0.00
August 2	86	50	0.00
August 3	87	59	0.53
August 4	85	55	0.00
August 5	93	55	0.00
August 6	88	52	0.06
August 7	82	53	0.00
August 8	92	55	0.00
August 9	84	48	0.00
August 10	90	44	0.00
August 11	94	46	0.00
August 12	86	52	0.00
August 13	86	52	0.00
August 14	96	52	0.00
August 15	93	60	0.00
August 16	92	54	0.00
August 17	93	55	0.00
August 18	85	49	0.14
August 19	74	50	0.15
August 20	69	48	0.00
August 21	80	39	0.00
August 22	80	54	0.00
August 23	90	52	0.00
August 24	86	50	0.00
August 25	90	43	0.00
August 26	90	56	0.06
August 27	87	44	0.00
August 28	74	43	0.00
August 29	84	39	0.00
August 30	87	42	0.00
August 31	90	48	0.00

September 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	78	60	0.00
September 2	82	48	0.01
September 3	80	47	0.06
September 4	78	41	0.00
September 5	87	40	0.00
September 6	89	48	0.00
September 7	87	44	0.00
September 8	86	41	0.00
September 9	95	42	0.00
September 10	95	50	0.00
September 11	87	55	0.00
September 12	84	46	0.00
September 13	76	53	0.10
September 14	80	41	0.00
September 15	87	44	0.00
September 16	88	42	0.00
September 17	83	30	0.00
September 18	86	51	0.00
September 19	79	45	0.07
September 20	57	35	0.05
September 21	68	32	0.00
September 22	79	38	0.00
September 23	75	38	0.00
September 24	74	36	0.00
September 25	85	36	0.00
September 26	86	46	0.00
September 27	85	46	0.00
September 28	84	39	0.00
September 29	58	38	0.50
September 30	59	32	0.00

October 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	69	36	0.00	0.0
October 2	70	34	0.00	0.0
October 3	75	39	0.00	0.0
October 4	78	31	0.00	0.0
October 5	80	42	0.00	0.0
October 6	71	44	0.00	0.0
October 7	72	50	0.00	0.0
October 8	65	44	0.07	0.0
October 9	57	42	0.03	0.0
October 10	62	38	0.00	0.0
October 11	50	29	0.12	0.4
October 12	34	27	0.76	8.2
October 13	38	28	0.22	4.1
October 14	41	25	0.00	0.0
October 15	47	27	0.00	0.0
October 16	59	38	0.00	0.0
October 17	69	38	0.00	0.0
October 18	68	45	0.04	0.0
October 19	46	32	1.21	4.7
October 20	51	30	0.00	0.3
October 21	63	38	0.00	0.0
October 22	65	37	0.00	0.0
October 23	56	42	0.01	0.0
October 24	56	31	0.00	0.0
October 25	68	46	0.00	0.0
October 26	62	33	0.14	0.0
October 27	53	32	0.00	0.0
October 28	57	27	0.00	0.0
October 29	64	41	0.00	0.0
October 30	50	31	0.00	0.0
October 31	32	28	0.09	0.5

November 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	35	27	0.00	0.1
November 2	53	27	0.00	0.0
November 3	56	31	0.00	0.0
November 4	63	39	0.00	0.0
November 5	61	36	0.00	0.0
November 6	65	38	0.00	0.0
November 7	63	32	0.02	0.0
November 8	54	33	0.15	0.0
November 9	58	24	0.00	0.0
November 10	43	26	0.13	0.3
November 11	43	21	0.00	0.0
November 12	50	18	0.00	0.0
November 13	61	27	0.00	0.0
November 14	57	25	0.00	0.0
November 15	63	46	0.00	0.0
November 16	59	23	0.00	0.0
November 17	35	12	0.00	0.0
November 18	48	16	0.00	0.0
November 19	55	38	0.00	0.0
November 20	49	23	0.00	0.0
November 21	48	20	0.00	0.0
November 22	55	37	0.00	0.0
November 23	58	36	0.00	0.0
November 24	37	17	0.12	2.2
November 25	46	17	0.00	0.0
November 26	49	24	0.00	0.0
November 27	47	23	0.00	0.0
November 28	60	31	0.00	0.0
November 29	61	37	0.01	0.0
November 30	49	30	0.05	0.0

December 2021 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	63	41	0.00	0.0
December 2	66	34	0.00	0.0
December 3	58	20	0.00	0.0
December 4	58	25	0.00	0.0
December 5	46	15	0.02	0.4
December 6	39	1	0.00	0.0
December 7	47	17	0.00	0.0
December 8	49	33	0.00	0.0
December 9	38	18	0.23	1.4
December 10	24	6	0.10	1.6
December 11	30	10	0.00	0.0
December 12	39	27	0.00	0.0
December 13	47	35	0.00	0.0
December 14	53	36	0.00	0.0
December 15	50	17	0.16	3.6
December 16	32	13	0.00	0.0
December 17	29	-9	0.03	0.8
December 18	31	5	0.00	0.0
December 19	40	28	0.00	0.0
December 20	47	17	0.00	0.0
December 21	50	30	0.00	0.0
December 22	49	26	0.00	0.0
December 23	49	31	0.00	0.0
December 24	45	32	0.00	0.0
December 25	40	25	0.00	0.0
December 26	43	18	0.00	0.0
December 27	35	7	0.02	0.3
December 28	21	-9	0.03	0.9
December 29	24	9	0.00	0.0
December 30	35	16	0.00	0.0
December 31	16	-1	0.04	0.6

Next Year >

Weather Station Details

Years	Station	Coordinates
1949–2024	Casper-Natrona County International Airport	location
1900–1948	Casper 2 E	location