Boise Weather in 1918

Historical record of Boise, Idaho weather for the year 1918 based on NOAA data.

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1918 Boise Weather Extremes
Highest temperature	104 °F	July 29
Lowest temperature	-7 °F	December 31
Highest daily low	70 °F	July 31
Lowest daily high	18 °F	December 31
Most daily precipitation	1.1 inches	September 23
Most daily snow	5.5 inches	March 8
Total annual precipitation	12.8 inches	-
Total annual snow	19.3 inches	-

January 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	53	30	0.00	0.0
January 2	50	29	0.00	0.0
January 3	42	25	0.00	0.0
January 4	41	27	0.23	0.0
January 5	47	30	0.02	0.0
January 6	47	29	0.00	0.0
January 7	50	33	0.21	0.0
January 8	45	30	0.00	0.0
January 9	39	27	0.00	0.0
January 10	29	15	0.00	0.0
January 11	30	22	0.16	1.5
January 12	34	26	0.40	0.0
January 13	40	22	0.00	0.0
January 14	38	28	0.38	3.5
January 15	39	26	0.12	0.0
January 16	36	31	0.21	0.0
January 17	41	31	0.03	0.0
January 18	44	30	0.08	0.0
January 19	40	26	0.00	0.0
January 20	35	22	0.00	0.0
January 21	36	24	0.00	0.0
January 22	37	21	0.00	0.0
January 23	46	23	0.00	0.0
January 24	50	30	0.00	0.0
January 25	44	32	0.10	0.0
January 26	38	26	0.01	0.1
January 27	40	24	0.00	0.0
January 28	38	28	0.00	0.0
January 29	43	27	0.02	0.0
January 30	38	21	0.08	0.5
January 31	27	7	0.00	0.0

February 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	32	12	0.00	0.0
February 2	34	16	0.04	0.2
February 3	48	25	0.00	0.0
February 4	44	34	0.00	0.0
February 5	56	35	0.00	0.0
February 6	61	35	0.02	0.0
February 7	49	33	0.02	0.0
February 8	47	22	0.00	0.0
February 9	51	28	0.00	0.0
February 10	54	26	0.00	0.0
February 11	49	27	0.00	0.0
February 12	44	30	0.10	0.0
February 13	44	28	0.12	0.3
February 14	41	21	0.20	2.0
February 15	37	16	0.00	0.0
February 16	38	26	0.15	1.0
February 17	43	31	0.29	1.5
February 18	44	21	0.00	0.0
February 19	39	17	0.00	0.0
February 20	38	18	0.00	0.0
February 21	44	25	0.00	0.0
February 22	42	27	0.00	0.0
February 23	47	26	0.09	0.0
February 24	42	28	0.04	0.3
February 25	40	19	0.00	0.0
February 26	45	32	0.00	0.0
February 27	43	23	0.00	0.0
February 28	47	22	0.00	0.0

March 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	57	25	0.00	0.0
March 2	56	23	0.00	n/a
March 3	60	28	0.00	0.0
March 4	54	26	0.02	0.2
March 5	40	18	0.00	0.0
March 6	46	15	0.00	0.0
March 7	48	21	0.00	0.0
March 8	45	30	0.74	5.5
March 9	44	31	0.00	0.0
March 10	53	33	0.00	0.0
March 11	61	36	0.25	0.0
March 12	44	36	0.05	0.0
March 13	46	32	0.07	0.0
March 14	50	22	0.00	0.0
March 15	58	30	0.00	0.0
March 16	63	31	0.00	0.0
March 17	61	37	0.00	0.0
March 18	60	44	0.21	0.0
March 19	59	42	0.01	0.0
March 20	60	32	0.00	0.0
March 21	66	31	0.00	0.0
March 22	67	41	0.00	0.0
March 23	66	40	0.00	0.0
March 24	71	43	0.00	0.0
March 25	65	44	0.04	0.0
March 26	56	42	0.45	0.0
March 27	54	38	0.22	0.0
March 28	61	29	0.00	0.0
March 29	67	31	0.00	0.0
March 30	68	36	0.00	0.0
March 31	65	36	0.00	0.0

April 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	52	29	0.00
April 2	46	27	0.00
April 3	44	18	0.00
April 4	45	20	0.00
April 5	58	20	0.00
April 6	65	29	0.00
April 7	68	34	0.00
April 8	75	44	0.00
April 9	70	48	0.36
April 10	63	37	0.00
April 11	68	34	0.00
April 12	71	36	0.00
April 13	57	33	0.16
April 14	51	26	0.06
April 15	50	25	0.00
April 16	57	27	0.00
April 17	56	33	0.00
April 18	61	27	0.00
April 19	68	27	0.00
April 20	67	33	0.00
April 21	73	34	0.00
April 22	76	33	0.00
April 23	73	40	0.00
April 24	74	35	0.00
April 25	68	30	0.00
April 26	60	35	0.00
April 27	65	28	0.00
April 28	70	31	0.00
April 29	78	36	0.00
April 30	79	38	0.00

May 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	77	41	0.00
May 2	87	37	0.00
May 3	86	45	0.00
May 4	80	48	0.00
May 5	68	41	0.00
May 6	66	35	0.00
May 7	73	34	0.00
May 8	67	42	0.08
May 9	62	29	0.00
May 10	63	33	0.00
May 11	71	36	0.00
May 12	79	36	0.00
May 13	83	38	0.00
May 14	76	53	0.00
May 15	63	33	0.00
May 16	64	45	0.00
May 17	71	38	0.00
May 18	65	43	0.00
May 19	64	31	0.00
May 20	67	38	0.00
May 21	64	27	0.00
May 22	74	28	0.00
May 23	72	35	0.00
May 24	65	35	0.00
May 25	65	27	0.00
May 26	67	36	0.00
May 27	56	40	0.80
May 28	71	44	0.03
May 29	77	40	0.00
May 30	79	43	0.00
May 31	66	41	0.00

June 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	69	33	0.00
June 2	77	36	0.00
June 3	83	42	0.00
June 4	91	49	0.00
June 5	90	51	0.00
June 6	91	56	0.00
June 7	94	54	0.00
June 8	93	58	0.00
June 9	97	59	0.00
June 10	97	56	0.00
June 11	97	58	0.00
June 12	100	64	0.00
June 13	100	60	0.16
June 14	84	56	0.00
June 15	89	47	0.00
June 16	88	60	0.00
June 17	93	63	0.00
June 18	92	59	0.04
June 19	96	57	0.00
June 20	100	62	0.00
June 21	88	68	0.01
June 22	91	62	0.00
June 23	93	62	0.33
June 24	91	57	0.00
June 25	88	54	0.00
June 26	88	46	0.00
June 27	90	50	0.00
June 28	76	48	0.00
June 29	82	43	0.00
June 30	90	45	0.00

July 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	97	51	0.00
July 2	94	51	0.00
July 3	81	55	0.00
July 4	90	40	0.00
July 5	95	54	0.00
July 6	90	49	0.00
July 7	96	48	0.00
July 8	91	56	0.06
July 9	92	52	0.21
July 10	85	53	0.00
July 11	95	52	0.00
July 12	93	54	0.00
July 13	94	53	0.00
July 14	91	55	0.00
July 15	96	64	0.00
July 16	98	59	0.00
July 17	102	61	0.00
July 18	100	66	0.00
July 19	94	65	0.00
July 20	87	53	0.00
July 21	84	49	0.00
July 22	98	52	0.00
July 23	85	57	0.00
July 24	79	48	0.00
July 25	83	52	0.02
July 26	80	56	0.00
July 27	81	41	0.00
July 28	94	43	0.00
July 29	104	49	0.00
July 30	94	58	0.00
July 31	100	70	0.00

August 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	97	62	0.18
August 2	95	60	0.00
August 3	92	57	0.00
August 4	90	51	0.00
August 5	81	53	0.00
August 6	85	47	0.00
August 7	92	50	0.00
August 8	87	51	0.00
August 9	79	47	0.00
August 10	88	48	0.00
August 11	84	55	0.00
August 12	80	42	0.00
August 13	90	43	0.00
August 14	85	61	0.02
August 15	76	61	0.00
August 16	71	52	0.06
August 17	70	51	0.49
August 18	78	42	0.00
August 19	72	48	0.02
August 20	67	35	0.00
August 21	73	39	0.00
August 22	78	43	0.00
August 23	85	46	0.00
August 24	93	48	0.00
August 25	96	51	0.00
August 26	95	56	0.00
August 27	87	52	0.00
August 28	86	38	0.00
August 29	86	41	0.00
August 30	91	45	0.00
August 31	94	43	0.00

September 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	91	50	0.00
September 2	80	50	0.00
September 3	81	42	0.00
September 4	82	39	0.00
September 5	84	45	0.00
September 6	88	46	0.00
September 7	91	56	0.00
September 8	76	52	0.40
September 9	75	50	0.06
September 10	76	48	0.00
September 11	86	43	0.00
September 12	74	56	0.00
September 13	72	58	0.02
September 14	69	58	0.28
September 15	77	58	0.15
September 16	81	53	0.00
September 17	86	46	0.00
September 18	84	48	0.00
September 19	89	47	0.00
September 20	93	46	0.00
September 21	87	52	0.00
September 22	74	54	0.10
September 23	58	50	1.15
September 24	67	43	0.00
September 25	72	40	0.00
September 26	76	43	0.00
September 27	81	44	0.00
September 28	88	54	0.00
September 29	72	56	0.09
September 30	73	46	0.20

October 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	77	44	0.00
October 2	75	46	0.00
October 3	71	54	0.08
October 4	74	46	0.26
October 5	70	56	0.06
October 6	62	45	0.39
October 7	65	38	0.00
October 8	70	38	0.00
October 9	72	38	0.00
October 10	71	41	0.00
October 11	76	43	0.00
October 12	78	42	0.00
October 13	80	41	0.00
October 14	79	51	0.00
October 15	67	55	0.33
October 16	61	47	0.27
October 17	58	36	0.00
October 18	60	34	0.00
October 19	62	33	0.00
October 20	68	36	0.00
October 21	63	35	0.00
October 22	59	36	0.00
October 23	50	25	0.00
October 24	56	31	0.00
October 25	53	30	0.00
October 26	57	33	0.00
October 27	52	38	0.30
October 28	58	42	0.00
October 29	59	42	0.00
October 30	63	30	0.00
October 31	60	34	0.00

November 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	62	34	0.00
November 2	63	29	0.00
November 3	53	46	0.00
November 4	51	36	0.00
November 5	47	31	0.00
November 6	51	29	0.00
November 7	48	22	0.00
November 8	53	22	0.00
November 9	49	35	0.01
November 10	54	34	0.00
November 11	56	26	0.01
November 12	57	34	0.00
November 13	51	25	0.00
November 14	55	25	0.00
November 15	52	35	0.12
November 16	51	34	0.00
November 17	56	31	0.00
November 18	51	31	0.00
November 19	51	28	0.00
November 20	51	24	0.00
November 21	50	23	0.00
November 22	44	23	0.00
November 23	47	21	0.00
November 24	35	28	0.00
November 25	39	17	0.00
November 26	41	16	0.00
November 27	38	22	0.00
November 28	37	19	0.00
November 29	44	22	0.00
November 30	46	20	0.00

December 1918 Boise Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	41	17	0.00	0.0
December 2	36	26	0.00	0.0
December 3	48	21	0.00	0.0
December 4	47	26	0.00	0.0
December 5	43	30	0.00	0.0
December 6	55	29	0.00	0.0
December 7	45	23	0.00	0.0
December 8	50	26	0.00	0.0
December 9	45	32	0.00	0.0
December 10	44	19	0.00	0.0
December 11	36	27	0.01	0.1
December 12	40	21	0.00	0.0
December 13	48	33	0.02	0.0
December 14	52	31	0.00	0.0
December 15	44	33	0.08	0.0
December 16	41	21	0.00	0.0
December 17	36	17	0.00	0.0
December 18	28	19	0.00	0.0
December 19	35	25	0.00	0.0
December 20	33	25	0.15	2.0
December 21	31	15	0.00	0.0
December 22	30	8	0.00	0.0
December 23	28	7	0.00	0.0
December 24	23	3	0.00	0.0
December 25	25	3	0.00	0.0
December 26	21	2	0.00	0.0
December 27	24	13	0.00	0.0
December 28	22	5	0.00	0.0
December 29	26	12	0.04	0.5
December 30	31	7	0.00	0.0
December 31	18	-7	0.00	0.0

Weather Station Details

Years	Station	Coordinates
1940–2023		location
1911–1939	Meridian 1 W	location