SeaTac, WA Weather History | Weather Underground

Summary

Temperature (°F)
Temperature (°F)	Max	Average	Min
Max Temperature	91	74.13	60
Avg Temperature	74.19	64.38	55.13
Min Temperature	64	56.87	50

Dew Point (°F)
Dew Point (°F)	Max	Average	Min
Dew Point	62	53.31	-30

Precipitation (in)
Precipitation (in)	Max	Average	Min	Sum
Precipitation	0.96	0.05	0.00	1.60
Snowdepth	0.00	0.00	0.00	0.00

Wind (mph)
Wind (mph)	Max	Average	Min
Wind	26	6.78	0
Gust Wind	35	1.24	0

Sea Level Pressure (in)
Sea Level Pressure (in)	Max	Average	Min
Sea Level Pressure	30.01	29.59	29.22

Daily Observations

Date	Temperature (°F)			Dew Point (°F)			Humidity (%)			Wind Speed (mph)			Pressure (in)			Precipitation (in)
Date	Max	Avg	Min	Max	Avg	Min	Max	Avg	Min	Max	Avg	Min	Max	Avg	Min	Precipitation (in)
9/30/2020	76	64.1	55	59	56.7	53	93	77.9	57	6	1.6	0	29.7	29.7	29.6	0.00
9/29/2020	80	64.8	54	57	54.3	52	93	70.8	45	14	7.6	0	29.7	29.6	29.6	0.00
9/28/2020	76	61.7	52	54	51.7	49	93	71.7	48	17	8.2	3	30.0	29.8	29.7	0.00
9/27/2020	70	59.1	53	53	50.9	46	97	76.3	47	12	5.7	0	30.0	30.0	29.8	0.00
9/26/2020	65	57.4	53	54	51.9	50	93	82.3	65	15	9.8	5	29.8	29.7	29.5	0.00
9/25/2020	63	58.3	55	59	52.4	48	96	80.8	67	21	12.9	5	29.5	29.3	29.2	0.11
9/24/2020	66	60.3	57	57	54.1	52	87	80.0	67	18	12.8	9	29.5	29.5	29.4	0.96
9/23/2020	63	60.7	58	60	57.2	53	93	88.3	72	17	12.1	5	29.5	29.3	29.2	0.12
9/22/2020	73	63.5	59	58	53.6	34	96	73.5	25	12	5.7	0	29.6	29.5	29.5	0.11
9/21/2020	70	62.0	54	56	54.5	52	97	77.5	61	8	4.3	0	29.5	29.5	29.5	0.00
9/20/2020	71	62.5	58	58	55.5	52	97	79.5	54	8	3.7	0	29.6	29.6	29.5	0.00
9/19/2020	72	62.3	59	59	57.6	55	96	85.6	57	16	8.3	0	29.6	29.6	29.5	0.30
9/18/2020	66	63.0	60	62	60.2	59	96	90.7	81	10	6.8	0	29.5	29.5	29.4	0.00
9/17/2020	74	65.7	59	61	59.9	58	97	82.0	66	10	4.4	0	29.6	29.5	29.4	0.00
9/16/2020	71	65.3	59	60	59.3	58	93	81.4	71	12	4.9	0	29.6	29.6	29.5	0.00
9/15/2020	75	66.7	61	62	60.1	57	97	80.1	60	8	3.6	0	29.7	29.6	29.6	0.00
9/14/2020	69	61.1	55	58	56.0	54	96	83.5	65	6	2.6	0	29.6	29.5	29.5	0.00
9/13/2020	63	56.0	50	55	52.7	49	100	88.9	72	7	2.6	0	29.5	29.5	29.4	0.00
9/12/2020	60	55.1	52	53	51.6	50	97	88.1	75	7	3.4	0	29.6	29.5	29.5	0.00
9/11/2020	73	63.8	54	53	51.4	49	93	66.1	42	10	5.6	0	29.6	29.6	29.5	0.00
9/10/2020	91	74.2	61	53	48.9	43	64	43.4	20	13	3.6	0	29.5	29.5	29.5	0.00
9/9/2020	87	73.1	60	47	44.0	42	56	37.2	23	17	9.0	0	29.6	29.5	29.5	0.00
9/8/2020	81	69.6	64	41	29.6	22	42	23.5	16	20	7.1	0	29.9	29.8	29.6	0.00
9/7/2020	84	72.4	61	58	45.3	-30	81	46.8	1	26	15.0	5	29.8	29.7	29.6	0.00
9/6/2020	81	67.5	56	57	55.4	53	93	67.0	41	13	7.8	5	29.8	29.8	29.7	0.00
9/5/2020	75	64.3	59	55	53.9	52	83	69.9	50	10	5.8	0	29.8	29.7	29.6	0.00
9/4/2020	83	70.0	59	57	54.9	51	83	60.4	37	10	7.6	0	29.6	29.5	29.5	0.00
9/3/2020	84	69.9	56	57	54.6	52	89	60.9	38	15	9.1	3	29.7	29.6	29.6	0.00
9/2/2020	81	68.2	57	60	56.8	54	89	68.4	50	14	6.5	0	29.7	29.6	29.6	0.00
9/1/2020	81	68.6	56	57	54.2	51	87	62.0	42	15	5.5	0	29.7	29.7	29.6	0.00

Charts

Temperature

Precipitation

Wind