Riverton Weather in 1999

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

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1999 Riverton Weather Extremes
Highest temperature	98 °F	July 14
Lowest temperature	5 °F	December 29
Highest daily low	65 °F	June 25
Lowest daily high	25 °F	December 10
Most daily precipitation	1.2 inches	September 4
Most daily snow	10.0 inches	April 23

What was the hottest temperature in Riverton in 1999?

The highest temperature recorded in Riverton, Wyoming in 1999 was 98 °F which happened on July 14.

Highest Temperatures: All-Time By Year

Highest Temperatures in Riverton in 1999

Rank	Temperature	Date
1	98 °F	Jul 14
2	97 °F	Jul 8
3	96 °F	Jul 29
3	96 °F	Jul 24
5	95 °F	Jul 28
6	94 °F	Jul 30
6	94 °F	Jul 4
8	93 °F	Aug 31
8	93 °F	Aug 27
8	93 °F	Aug 9
8	93 °F	Jul 23
8	93 °F	Jul 13
8	93 °F	Jul 7

What was the coldest temperature in Riverton in 1999?

The lowest temperature recorded in Riverton, Wyoming in 1999 was 5 °F which happened on Dec 29.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Riverton in 1999

Rank	Temperature	Date
1	5 °F	December 29
2	6 °F	December 9
3	7 °F	December 30
3	7 °F	December 14
5	8 °F	December 31
5	8 °F	December 15
5	8 °F	December 5
8	9 °F	December 28
8	9 °F	December 26
8	9 °F	December 25
8	9 °F	December 6
8	9 °F	November 24

January 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	n/a	n/a	n/a	n/a
January 2	n/a	n/a	n/a	n/a
January 3	n/a	n/a	n/a	n/a
January 4	n/a	n/a	n/a	n/a
January 5	n/a	n/a	n/a	n/a
January 6	n/a	n/a	n/a	n/a
January 7	n/a	n/a	n/a	n/a
January 8	n/a	n/a	n/a	n/a
January 9	n/a	n/a	n/a	n/a
January 10	n/a	n/a	n/a	n/a
January 11	n/a	n/a	n/a	n/a
January 12	n/a	n/a	n/a	n/a
January 13	n/a	n/a	n/a	n/a
January 14	n/a	n/a	n/a	n/a
January 15	n/a	n/a	n/a	n/a
January 16	n/a	n/a	n/a	n/a
January 17	n/a	n/a	n/a	n/a
January 18	n/a	n/a	n/a	n/a
January 19	n/a	n/a	n/a	n/a
January 20	n/a	n/a	n/a	n/a
January 21	n/a	n/a	n/a	n/a
January 22	n/a	n/a	n/a	n/a
January 23	n/a	n/a	n/a	n/a
January 24	n/a	n/a	n/a	n/a
January 25	n/a	n/a	n/a	n/a
January 26	n/a	n/a	n/a	n/a
January 27	n/a	n/a	n/a	n/a
January 28	n/a	n/a	n/a	n/a
January 29	n/a	n/a	n/a	n/a
January 30	n/a	n/a	n/a	n/a
January 31	n/a	n/a	n/a	n/a

February 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	n/a	n/a	n/a	n/a
February 2	n/a	n/a	n/a	n/a
February 3	n/a	n/a	n/a	n/a
February 4	n/a	n/a	n/a	n/a
February 5	n/a	n/a	n/a	n/a
February 6	n/a	n/a	n/a	n/a
February 7	n/a	n/a	n/a	n/a
February 8	n/a	n/a	n/a	n/a
February 9	n/a	n/a	n/a	n/a
February 10	n/a	n/a	n/a	n/a
February 11	n/a	n/a	n/a	n/a
February 12	n/a	n/a	n/a	n/a
February 13	n/a	n/a	n/a	n/a
February 14	n/a	n/a	n/a	n/a
February 15	n/a	n/a	n/a	n/a
February 16	n/a	n/a	n/a	n/a
February 17	n/a	n/a	n/a	n/a
February 18	n/a	n/a	n/a	n/a
February 19	n/a	n/a	n/a	n/a
February 20	n/a	n/a	n/a	n/a
February 21	n/a	n/a	n/a	n/a
February 22	n/a	n/a	n/a	n/a
February 23	n/a	n/a	n/a	n/a
February 24	n/a	n/a	n/a	n/a
February 25	n/a	n/a	n/a	n/a
February 26	n/a	n/a	n/a	n/a
February 27	n/a	n/a	n/a	n/a
February 28	n/a	n/a	n/a	n/a

March 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	n/a	n/a	0.00	0.0
March 2	n/a	n/a	0.00	0.0
March 3	n/a	n/a	0.00	0.0
March 4	n/a	n/a	0.00	0.0
March 5	n/a	n/a	0.00	0.0
March 6	n/a	n/a	0.00	0.0
March 7	n/a	n/a	0.00	0.0
March 8	n/a	n/a	0.00	0.0
March 9	n/a	n/a	0.00	0.0
March 10	n/a	n/a	0.00	0.0
March 11	n/a	n/a	0.00	0.0
March 12	n/a	n/a	0.00	0.0
March 13	46	20	0.00	0.0
March 14	57	21	0.00	0.0
March 15	68	25	0.00	0.0
March 16	70	30	0.00	0.0
March 17	63	18	0.00	0.0
March 18	51	19	0.00	0.0
March 19	60	24	0.00	0.0
March 20	68	26	0.00	0.0
March 21	70	32	0.00	0.0
March 22	62	38	0.00	0.0
March 23	59	27	0.00	0.0
March 24	64	26	0.00	0.0
March 25	69	27	0.00	0.0
March 26	72	30	0.00	0.0
March 27	67	29	0.00	0.0
March 28	48	16	0.01	0.1
March 29	46	16	0.00	0.0
March 30	64	23	0.00	0.0
March 31	67	n/a	0.00	0.0

April 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	48	25	0.28	7.0
April 2	28	21	0.16	2.5
April 3	31	19	0.12	2.7
April 4	36	11	0.00	0.0
April 5	40	14	0.00	0.0
April 6	48	16	0.00	0.0
April 7	57	22	0.00	0.0
April 8	61	33	0.00	0.0
April 9	64	36	0.00	0.0
April 10	55	31	0.24	2.0
April 11	46	25	0.00	0.0
April 12	55	28	0.00	0.0
April 13	66	29	0.00	0.0
April 14	66	34	0.00	0.0
April 15	48	19	0.00	0.0
April 16	44	21	0.00	0.0
April 17	48	21	0.00	0.0
April 18	68	28	0.00	0.0
April 19	73	43	0.00	0.0
April 20	73	43	0.00	0.0
April 21	69	32	0.00	0.0
April 22	55	32	0.50	5.0
April 23	36	31	1.00	10.0
April 24	34	31	0.27	2.5
April 25	42	32	0.15	0.0
April 26	40	35	0.80	0.0
April 27	63	33	0.03	0.0
April 28	64	36	0.00	0.0
April 29	71	42	0.01	0.0
April 30	63	43	0.13	0.0

May 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	50	36	0.24	0.0
May 2	69	40	0.00	0.0
May 3	68	37	0.00	0.0
May 4	59	38	0.00	0.0
May 5	54	34	0.07	0.1
May 6	47	25	0.00	0.0
May 7	61	30	0.00	0.0
May 8	77	41	0.00	0.0
May 9	71	41	0.08	0.0
May 10	55	33	0.00	0.0
May 11	46	27	0.06	0.6
May 12	55	30	0.00	0.0
May 13	68	36	0.09	0.0
May 14	65	38	0.00	0.0
May 15	59	33	0.00	0.0
May 16	61	33	0.00	0.0
May 17	54	30	0.08	0.0
May 18	66	35	0.00	0.0
May 19	80	42	0.00	0.0
May 20	73	46	0.00	0.0
May 21	75	42	0.00	0.0
May 22	76	44	0.00	0.0
May 23	76	42	0.00	0.0
May 24	77	45	0.00	0.0
May 25	80	48	0.00	0.0
May 26	79	48	0.00	0.0
May 27	79	47	0.18	0.0
May 28	77	44	0.00	0.0
May 29	83	47	0.00	0.0
May 30	79	49	0.16	0.0
May 31	65	46	0.01	0.0

June 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	63	39	0.03
June 2	77	43	0.00
June 3	76	49	0.00
June 4	75	39	0.00
June 5	77	46	0.35
June 6	64	49	0.11
June 7	75	50	0.03
June 8	76	46	0.04
June 9	78	43	0.01
June 10	72	44	0.00
June 11	66	43	0.00
June 12	76	47	0.00
June 13	78	46	0.00
June 14	78	50	0.00
June 15	75	51	0.10
June 16	68	47	0.00
June 17	77	49	0.25
June 18	81	48	0.00
June 19	83	52	0.00
June 20	87	52	0.00
June 21	90	55	0.00
June 22	92	53	0.00
June 23	81	49	0.00
June 24	84	50	0.00
June 25	90	65	0.00
June 26	87	46	0.00
June 27	81	48	0.00
June 28	81	43	0.00
June 29	80	52	0.00
June 30	79	47	0.00

July 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	76	43	0.01
July 2	86	n/a	0.00
July 3	92	56	0.00
July 4	94	57	0.00
July 5	92	53	0.00
July 6	83	52	0.00
July 7	93	55	0.00
July 8	97	63	0.00
July 9	88	46	0.00
July 10	82	50	0.00
July 11	87	51	0.00
July 12	90	49	0.00
July 13	93	56	0.00
July 14	98	56	0.00
July 15	91	53	0.00
July 16	86	54	0.00
July 17	74	48	0.02
July 18	89	52	0.00
July 19	89	53	0.00
July 20	89	58	0.00
July 21	91	54	0.00
July 22	92	56	0.01
July 23	93	53	0.00
July 24	96	53	0.00
July 25	92	55	0.00
July 26	90	54	0.00
July 27	91	59	0.00
July 28	95	57	0.00
July 29	96	61	0.00
July 30	94	56	0.00
July 31	86	58	0.00

August 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	75	50	0.11
August 2	81	50	0.00
August 3	92	54	0.00
August 4	91	60	0.00
August 5	78	54	0.22
August 6	83	n/a	0.00
August 7	82	53	0.00
August 8	88	53	0.00
August 9	93	55	0.00
August 10	92	56	0.00
August 11	91	n/a	0.00
August 12	83	48	0.09
August 13	78	49	0.01
August 14	89	55	0.00
August 15	92	59	0.00
August 16	85	44	0.00
August 17	88	53	0.00
August 18	91	51	0.00
August 19	90	49	0.00
August 20	92	55	0.00
August 21	90	n/a	0.00
August 22	80	50	0.00
August 23	91	55	0.00
August 24	89	52	0.00
August 25	92	56	0.00
August 26	92	55	0.00
August 27	93	58	0.00
August 28	91	57	0.03
August 29	89	56	0.00
August 30	90	52	0.00
August 31	93	n/a	0.01

September 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
September 1	83	54	0.14	0.0
September 2	82	49	0.01	0.0
September 3	64	51	0.18	0.0
September 4	64	43	1.18	0.2
September 5	65	40	0.03	0.0
September 6	77	44	0.00	0.0
September 7	85	49	0.00	0.0
September 8	69	34	0.00	0.0
September 9	71	35	0.00	0.0
September 10	78	40	0.00	0.0
September 11	83	44	0.02	0.0
September 12	66	44	0.00	0.0
September 13	62	31	0.00	0.0
September 14	68	33	0.00	0.0
September 15	71	37	0.00	0.0
September 16	75	37	0.00	0.0
September 17	82	43	0.00	0.0
September 18	83	42	0.00	0.0
September 19	81	44	0.46	0.0
September 20	50	40	0.09	0.0
September 21	66	36	0.00	0.0
September 22	75	39	0.00	0.0
September 23	78	41	0.00	0.0
September 24	79	43	0.00	0.0
September 25	75	38	0.00	0.0
September 26	77	39	0.00	0.0
September 27	57	33	0.13	0.3
September 28	45	29	0.23	2.3
September 29	49	28	0.00	0.0
September 30	67	29	0.00	0.0

October 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	65	35	0.00	0.0
October 2	48	29	0.02	0.0
October 3	53	29	0.00	0.0
October 4	59	26	0.00	0.0
October 5	76	28	0.00	0.0
October 6	74	32	0.00	0.0
October 7	74	n/a	0.00	0.0
October 8	68	36	0.00	0.0
October 9	74	37	0.00	0.0
October 10	79	35	0.00	0.0
October 11	68	32	0.00	0.0
October 12	68	n/a	0.00	0.0
October 13	78	32	0.00	0.0
October 14	76	35	0.00	0.0
October 15	77	38	0.00	0.0
October 16	50	28	0.25	4.0
October 17	38	14	0.00	0.0
October 18	48	15	0.00	0.0
October 19	47	24	0.01	0.0
October 20	53	23	0.00	0.0
October 21	64	n/a	0.00	0.0
October 22	70	27	0.00	0.0
October 23	67	26	0.00	0.0
October 24	66	29	0.00	0.0
October 25	68	29	0.00	0.0
October 26	68	29	0.00	0.0
October 27	72	32	0.00	0.0
October 28	58	26	0.00	0.0
October 29	62	28	0.00	0.0
October 30	56	26	0.00	0.0
October 31	62	25	0.00	0.0

November 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	73	28	0.00	0.0
November 2	43	10	0.00	0.0
November 3	41	11	0.00	0.0
November 4	54	20	0.00	0.0
November 5	72	26	0.00	0.0
November 6	60	24	0.00	0.0
November 7	66	20	0.00	0.0
November 8	60	22	0.00	0.0
November 9	69	n/a	0.00	0.0
November 10	60	27	0.00	0.0
November 11	61	28	0.00	0.0
November 12	65	28	0.00	0.0
November 13	67	27	0.00	0.0
November 14	70	21	0.00	0.0
November 15	60	17	0.00	0.0
November 16	57	17	0.00	0.0
November 17	57	21	0.00	0.0
November 18	57	n/a	0.01	0.0
November 19	49	18	0.00	0.0
November 20	43	18	0.00	0.0
November 21	56	21	0.00	0.0
November 22	43	n/a	0.14	1.5
November 23	36	11	0.01	0.2
November 24	35	9	0.00	0.0
November 25	41	10	0.00	0.0
November 26	54	25	0.00	0.0
November 27	62	23	0.00	0.0
November 28	51	18	0.00	0.0
November 29	47	19	0.00	0.0
November 30	47	22	0.00	0.0

December 1999 Riverton Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	55	22	0.00	0.0
December 2	51	21	0.00	0.0
December 3	44	22	0.00	0.0
December 4	41	13	0.00	0.0
December 5	38	8	0.00	0.0
December 6	38	9	0.00	0.0
December 7	n/a	15	0.00	0.0
December 8	44	10	0.00	0.0
December 9	37	6	0.00	0.0
December 10	25	n/a	0.00	0.0
December 11	38	13	0.00	0.0
December 12	41	10	0.00	0.0
December 13	44	11	0.00	0.0
December 14	49	7	0.00	0.1
December 15	34	8	0.00	0.0
December 16	n/a	15	0.00	0.0
December 17	56	30	0.00	0.0
December 18	46	20	0.00	0.0
December 19	47	19	0.00	0.0
December 20	36	11	0.00	0.0
December 21	36	n/a	0.02	0.5
December 22	32	17	0.00	0.0
December 23	37	16	0.00	0.0
December 24	41	11	0.00	0.0
December 25	41	9	0.00	0.0
December 26	40	9	0.00	0.0
December 27	38	10	0.00	0.0
December 28	41	9	0.00	0.0
December 29	44	5	0.00	0.0
December 30	n/a	7	0.00	0.0
December 31	44	8	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1907–2024	Riverton	location