Casper Weather in 1999

Historical record of Casper, Wyoming weather for the year 1999 based on NOAA data.

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1999 Casper Weather Extremes
Highest temperature	99 °F	July 7
Lowest temperature	-9 °F	January 3
Highest daily low	66 °F	July 22
Lowest daily high	17 °F	January 2
Most daily precipitation	0.7 inches	May 19
Most daily snow	6.0 inches	April 1
Total annual precipitation	8.9 inches	-
Total annual snow	51.9 inches	-

What was the hottest temperature in Casper in 1999?

The highest temperature recorded in Casper, Wyoming in 1999 was 99 °F which happened on July 7.

Highest Temperatures: All-Time By Year

Highest Temperatures in Casper in 1999

Rank	Temperature	Date
1	99 °F	Jul 7
2	98 °F	Jul 3
3	97 °F	Jul 28
3	97 °F	Jul 13
5	96 °F	Jul 27
6	95 °F	Jul 24
6	95 °F	Jul 4
6	95 °F	Jul 2
9	94 °F	Aug 14
9	94 °F	Jul 29
9	94 °F	Jul 23
9	94 °F	Jul 21

What was the coldest temperature in Casper in 1999?

The lowest temperature recorded in Casper, Wyoming in 1999 was -9 °F which happened on Jan 3.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Casper in 1999

Rank	Temperature	Date
1	-9 °F	January 3
2	-4 °F	February 11
3	-1 °F	January 2
4	1 °F	December 19
5	4 °F	December 21
6	5 °F	December 14
6	5 °F	March 6
6	5 °F	March 2
9	6 °F	January 24
9	6 °F	January 4

January 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	34	10	0.05	1.4
January 2	17	-1	0.00	0.0
January 3	22	-9	0.00	0.0
January 4	37	6	0.00	0.0
January 5	44	31	0.00	0.0
January 6	35	19	0.00	0.0
January 7	46	21	0.01	0.0
January 8	28	13	0.01	0.2
January 9	43	23	0.00	0.0
January 10	44	23	0.00	0.0
January 11	49	36	0.00	0.0
January 12	42	20	0.00	0.0
January 13	41	15	0.00	0.0
January 14	48	25	0.00	0.0
January 15	50	17	0.00	0.0
January 16	44	19	0.05	1.0
January 17	34	14	0.00	0.0
January 18	54	24	0.00	0.0
January 19	43	25	0.00	0.0
January 20	47	30	0.00	0.0
January 21	36	23	0.00	0.0
January 22	38	20	0.00	0.0
January 23	48	7	0.03	0.8
January 24	19	6	0.01	0.3
January 25	37	9	0.00	0.0
January 26	41	12	0.03	0.6
January 27	31	11	0.03	0.6
January 28	27	12	0.00	0.0
January 29	33	18	0.00	0.0
January 30	37	20	0.00	0.0
January 31	46	20	0.00	0.0

February 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	34	20	0.06	0.7
February 2	35	20	0.00	0.0
February 3	41	19	0.00	0.0
February 4	52	25	0.00	0.0
February 5	40	24	0.09	0.9
February 6	44	27	0.00	0.0
February 7	51	35	0.01	0.0
February 8	43	25	0.00	0.0
February 9	54	31	0.00	0.0
February 10	52	8	0.06	0.8
February 11	20	-4	0.00	0.0
February 12	32	15	0.00	0.0
February 13	46	28	0.00	0.0
February 14	49	29	0.00	0.0
February 15	39	18	0.00	0.0
February 16	40	16	0.00	0.0
February 17	48	23	0.05	1.0
February 18	36	14	0.00	0.0
February 19	44	25	0.00	0.0
February 20	39	18	0.01	0.8
February 21	44	13	0.00	0.0
February 22	38	23	0.02	0.8
February 23	45	24	0.00	0.0
February 24	55	35	0.00	0.0
February 25	58	31	0.00	0.0
February 26	44	21	0.00	0.0
February 27	48	18	0.00	0.0
February 28	59	33	0.00	0.0

March 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	56	28	0.06	1.0
March 2	38	5	0.05	0.8
March 3	58	23	0.00	0.0
March 4	33	24	0.00	0.0
March 5	32	15	0.00	0.2
March 6	40	5	0.00	0.0
March 7	55	21	0.00	0.0
March 8	43	19	0.02	0.7
March 9	55	17	0.12	2.0
March 10	38	22	0.00	0.0
March 11	31	18	0.00	0.0
March 12	38	24	0.00	0.0
March 13	56	23	0.00	0.0
March 14	65	33	0.00	0.0
March 15	67	38	0.00	0.0
March 16	63	21	0.00	0.0
March 17	45	14	0.00	0.0
March 18	57	13	0.00	0.0
March 19	66	28	0.00	0.0
March 20	66	20	0.00	0.0
March 21	56	20	0.00	0.0
March 22	54	33	0.00	0.0
March 23	61	20	0.00	0.0
March 24	63	20	0.00	0.0
March 25	70	20	0.00	0.0
March 26	69	38	0.00	0.0
March 27	44	20	0.12	1.8
March 28	44	17	0.00	0.0
March 29	62	27	0.00	0.0
March 30	70	34	0.00	0.0
March 31	51	28	0.08	1.5

April 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	28	21	0.11	6.0
April 2	23	19	0.08	3.0
April 3	30	12	0.08	3.0
April 4	35	11	0.00	0.0
April 5	41	9	0.00	0.0
April 6	54	32	0.00	0.0
April 7	61	31	0.02	0.0
April 8	59	38	0.08	0.0
April 9	56	32	0.08	0.5
April 10	42	23	0.13	3.0
April 11	48	17	0.00	0.0
April 12	61	22	0.00	0.0
April 13	61	29	0.06	0.6
April 14	40	24	0.24	2.4
April 15	39	19	0.00	0.0
April 16	37	18	0.00	0.0
April 17	61	20	0.00	0.0
April 18	69	37	0.00	0.0
April 19	69	38	0.00	0.0
April 20	67	38	0.13	0.0
April 21	50	34	0.00	0.0
April 22	47	32	0.14	2.3
April 23	38	31	0.00	0.0
April 24	53	32	0.00	0.0
April 25	41	36	0.31	0.0
April 26	52	35	0.01	0.0
April 27	61	35	0.06	0.0
April 28	68	38	0.00	0.0
April 29	60	43	0.00	0.0
April 30	53	38	0.00	0.0

May 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	65	38	0.00	0.0
May 2	63	42	0.00	0.0
May 3	54	40	0.03	0.0
May 4	51	35	0.35	0.3
May 5	47	30	0.00	0.0
May 6	54	27	0.00	0.0
May 7	70	27	0.00	0.0
May 8	64	34	0.00	0.0
May 9	60	37	0.06	0.0
May 10	44	25	0.47	0.7
May 11	51	24	0.00	0.0
May 12	64	28	0.02	0.0
May 13	59	36	0.17	0.0
May 14	56	32	0.31	0.0
May 15	65	33	0.00	0.0
May 16	50	36	0.14	0.0
May 17	63	31	0.00	0.0
May 18	74	37	0.00	0.0
May 19	73	38	0.71	0.0
May 20	67	38	0.00	0.0
May 21	73	39	0.01	0.0
May 22	65	42	0.00	0.0
May 23	72	37	0.00	0.0
May 24	73	38	0.00	0.0
May 25	75	39	0.00	0.0
May 26	74	46	0.00	0.0
May 27	68	42	0.01	0.0
May 28	79	36	0.00	0.0
May 29	78	42	0.00	0.0
May 30	62	45	0.01	0.0
May 31	64	42	0.00	0.0

June 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	75	40	0.00
June 2	82	37	0.01
June 3	73	42	0.00
June 4	78	35	0.03
June 5	53	43	0.33
June 6	70	46	0.16
June 7	76	46	0.00
June 8	80	38	0.00
June 9	72	47	0.00
June 10	57	46	0.35
June 11	71	40	0.12
June 12	73	46	0.10
June 13	71	42	0.00
June 14	72	43	0.03
June 15	63	49	0.00
June 16	70	44	0.00
June 17	82	46	0.19
June 18	81	48	0.00
June 19	88	50	0.24
June 20	87	55	0.00
June 21	86	63	0.00
June 22	76	48	0.04
June 23	84	44	0.00
June 24	88	46	0.00
June 25	90	55	0.00
June 26	77	47	0.01
June 27	85	44	0.00
June 28	78	40	0.00
June 29	76	45	0.00
June 30	74	49	0.17

July 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	86	44	0.04
July 2	95	48	0.00
July 3	98	58	0.00
July 4	95	53	0.00
July 5	79	55	0.00
July 6	91	47	0.00
July 7	99	54	0.01
July 8	91	58	0.00
July 9	80	44	0.00
July 10	86	44	0.00
July 11	87	48	0.00
July 12	92	52	0.00
July 13	97	54	0.00
July 14	90	51	0.01
July 15	85	58	0.01
July 16	82	53	0.05
July 17	88	52	0.00
July 18	91	53	0.00
July 19	83	58	0.00
July 20	90	48	0.00
July 21	94	48	0.00
July 22	90	66	0.00
July 23	94	57	0.00
July 24	95	63	0.00
July 25	93	58	0.00
July 26	90	51	0.00
July 27	96	55	0.00
July 28	97	60	0.00
July 29	94	63	0.01
July 30	88	61	0.00
July 31	68	53	0.11

August 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	75	51	0.00
August 2	87	52	0.00
August 3	90	47	0.00
August 4	81	55	0.00
August 5	83	50	0.00
August 6	83	57	0.00
August 7	89	54	0.00
August 8	93	55	0.00
August 9	90	52	0.00
August 10	93	55	0.00
August 11	87	56	0.00
August 12	77	51	0.00
August 13	87	46	0.00
August 14	94	51	0.00
August 15	88	51	0.00
August 16	89	39	0.00
August 17	88	49	0.00
August 18	89	46	0.00
August 19	90	45	0.03
August 20	89	55	0.00
August 21	73	53	0.05
August 22	88	53	0.00
August 23	87	45	0.00
August 24	93	48	0.00
August 25	91	61	0.00
August 26	92	59	0.00
August 27	92	63	0.03
August 28	89	57	0.00
August 29	88	54	0.00
August 30	92	53	0.00
August 31	85	61	0.00

September 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	79	53	0.00
September 2	71	51	0.50
September 3	63	49	0.28
September 4	59	41	0.02
September 5	77	40	0.00
September 6	86	50	0.00
September 7	71	38	0.00
September 8	72	32	0.00
September 9	79	34	0.00
September 10	84	40	0.01
September 11	66	42	0.01
September 12	60	32	0.00
September 13	70	26	0.00
September 14	70	30	0.00
September 15	73	30	0.00
September 16	82	34	0.00
September 17	82	37	0.00
September 18	84	43	0.01
September 19	48	41	0.34
September 20	64	39	0.00
September 21	76	40	0.00
September 22	79	44	0.00
September 23	80	39	0.00
September 24	78	48	0.00
September 25	79	42	0.00
September 26	48	33	0.10
September 27	45	32	0.03
September 28	46	32	0.00
September 29	69	36	0.00
September 30	65	28	0.00

October 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	39	27	0.04	0.4
October 2	48	30	0.00	0.0
October 3	60	27	0.00	0.0
October 4	75	25	0.00	0.0
October 5	77	24	0.00	0.0
October 6	79	42	0.00	0.0
October 7	65	34	0.00	0.0
October 8	74	35	0.00	0.0
October 9	80	36	0.00	0.0
October 10	70	28	0.00	0.0
October 11	81	34	0.00	0.0
October 12	75	36	0.00	0.0
October 13	78	30	0.00	0.0
October 14	78	46	0.00	0.0
October 15	46	30	0.11	2.0
October 16	32	20	0.01	3.0
October 17	48	20	0.00	0.0
October 18	41	31	0.09	0.6
October 19	53	29	0.00	0.0
October 20	66	32	0.00	0.0
October 21	69	34	0.00	0.0
October 22	68	28	0.00	0.0
October 23	69	23	0.00	0.0
October 24	73	34	0.00	0.0
October 25	71	24	0.00	0.0
October 26	73	42	0.00	0.0
October 27	56	22	0.00	0.0
October 28	66	19	0.00	0.0
October 29	54	23	0.00	0.0
October 30	59	27	0.00	0.0
October 31	69	37	0.00	0.0

November 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	42	12	0.00	0.0
November 2	58	16	0.00	0.0
November 3	61	31	0.00	0.0
November 4	70	29	0.00	0.0
November 5	70	17	0.00	0.0
November 6	72	41	0.00	0.0
November 7	72	38	0.00	0.0
November 8	70	45	0.00	0.0
November 9	59	36	0.00	0.0
November 10	66	40	0.00	0.0
November 11	66	44	0.00	0.0
November 12	70	41	0.00	0.0
November 13	69	45	0.00	0.0
November 14	68	36	0.00	0.0
November 15	69	37	0.00	0.0
November 16	67	29	0.00	0.0
November 17	70	27	0.00	0.0
November 18	48	30	0.25	2.5
November 19	50	29	0.00	0.0
November 20	52	31	0.00	0.0
November 21	42	22	0.00	0.0
November 22	31	20	0.11	1.1
November 23	25	13	0.00	0.0
November 24	30	18	0.00	0.0
November 25	43	29	0.00	0.0
November 26	57	32	0.00	0.0
November 27	53	27	0.00	0.0
November 28	51	22	0.00	0.0
November 29	58	21	0.00	0.0
November 30	63	44	0.00	0.0

December 1999 Casper Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	59	20	0.00	0.0
December 2	45	19	0.00	0.0
December 3	33	27	0.03	0.6
December 4	33	18	0.00	0.0
December 5	41	27	0.00	0.0
December 6	44	31	0.00	0.0
December 7	41	12	0.00	0.0
December 8	34	7	0.00	0.0
December 9	39	19	0.00	0.0
December 10	39	13	0.00	0.0
December 11	32	14	0.00	0.0
December 12	41	23	0.00	0.0
December 13	41	20	0.03	1.0
December 14	24	5	0.00	0.0
December 15	31	17	0.00	0.0
December 16	44	30	0.00	0.0
December 17	42	28	0.00	0.0
December 18	47	24	0.00	0.0
December 19	31	1	0.02	0.5
December 20	30	10	0.00	0.0
December 21	28	4	0.02	0.5
December 22	35	22	0.00	0.0
December 23	40	21	0.00	0.0
December 24	42	30	0.00	0.0
December 25	43	17	0.00	0.0
December 26	41	16	0.00	0.0
December 27	47	23	0.00	0.0
December 28	48	34	0.00	0.0
December 29	47	33	0.00	0.0
December 30	43	28	0.00	0.0
December 31	47	29	0.00	0.0

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Weather Station Details

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