SeaTac Weather In December 2018

Historical Data for December 2018 in SeaTac, United States

Temperature	Max	Average	Min
Max Temperature	11.0°C (51.8°F)	8.23°C (46.81°F)	5.0°C (41.0°F)
Avg Temperature	9.0°C (48.2°F)	5.9°C (42.62°F)	3.0°C (37.4°F)
Min Temperature	7.0°C (44.6°F)	3.29°C (37.92°F)	-1.0°C (30.2°F)
Dew Point	Max	Average	Min
Dew Point	8.0°C (46.4°F)	2.32°C (36.18°F)	-7.0°C (19.4°F)
Precipitation	Max	Average	Min	Sum
Precipitation	24.1mm \| 0.95in	4.74mm \| 0.19in	0.0mm \| 0in	146.8mm \| 5.78in
Snowdepth	0.0mm \| 0in	0.0mm \| 0in	0.0mm \| 0in	0.0mm \| 0in
Wind	Max	Average	Min
Wind	19.0kmh \| 11.81mph	7.58kmh \| 4.71mph	2.0kmh \| 1.24mph
Gust Wind	29.0kmh \| 18.02mph	11.97kmh \| 7.44mph	4.0kmh \| 2.49mph
Sea Level Pressure	Max	Average	Min
Sea Level Pressure	24.1mb	4.74mb	0.0mb

December 2018 Graph

December 2018 - Daily Observations

Time	Temperature	Dew Point	Humidity	Wind Speed	Pressure	Precipitation
December	° C \| ° F	° C \| ° F	%	Kph \| Mph	Hg \| Mb	Total (mm/in)
2018-12-01	5 \| 41.0	3 \| 37.4	89	3 \| 1.86	29.88 \| 1012	0.5 \| 0.02
2018-12-02	5 \| 41.0	3 \| 37.4	92	2 \| 1.24	30.15 \| 1021	0.7 \| 0.03
2018-12-03	5 \| 41.0	2 \| 35.6	84	6 \| 3.73	30.36 \| 1028	0.0 \| 0.0
2018-12-04	4 \| 39.2	-2 \| 28.4	71	7 \| 4.35	30.3 \| 1026	0.0 \| 0.0
2018-12-05	5 \| 41.0	-2 \| 28.4	66	7 \| 4.35	30.21 \| 1023	0.0 \| 0.0
2018-12-06	3 \| 37.4	-7 \| 19.4	53	6 \| 3.73	30.18 \| 1022	0.0 \| 0.0
2018-12-07	3 \| 37.4	-6 \| 21.2	55	5 \| 3.11	30.21 \| 1023	0.0 \| 0.0
2018-12-08	6 \| 42.8	-0 \| 32.0	71	5 \| 3.11	30.36 \| 1028	1.0 \| 0.04
2018-12-09	5 \| 41.0	2 \| 35.6	80	6 \| 3.73	30.21 \| 1023	16.1 \| 0.63
2018-12-10	6 \| 42.8	4 \| 39.2	90	8 \| 4.97	30.24 \| 1024	0.6 \| 0.02
2018-12-11	7 \| 44.6	5 \| 41.0	89	12 \| 7.46	29.85 \| 1011	17.2 \| 0.68
2018-12-12	6 \| 42.8	4 \| 39.2	84	9 \| 5.59	30.15 \| 1021	4.4 \| 0.17
2018-12-13	7 \| 44.6	5 \| 41.0	85	9 \| 5.59	30.0 \| 1016	6.9 \| 0.27
2018-12-14	9 \| 48.2	2 \| 35.6	68	11 \| 6.84	29.68 \| 1005	0.5 \| 0.02
2018-12-15	7 \| 44.6	2 \| 35.6	73	8 \| 4.97	29.97 \| 1015	0.1 \| 0.0
2018-12-16	9 \| 48.2	6 \| 42.8	87	7 \| 4.35	29.74 \| 1007	11.1 \| 0.44
2018-12-17	8 \| 46.4	5 \| 41.0	85	8 \| 4.97	29.88 \| 1012	5.6 \| 0.22
2018-12-18	9 \| 48.2	6 \| 42.8	84	16 \| 9.94	29.74 \| 1007	8.6 \| 0.34
2018-12-19	8 \| 46.4	5 \| 41.0	84	9 \| 5.59	30.18 \| 1022	0.8 \| 0.03
2018-12-20	9 \| 48.2	5 \| 41.0	81	16 \| 9.94	29.8 \| 1009	24.1 \| 0.95
2018-12-21	4 \| 39.2	1 \| 33.8	85	7 \| 4.35	30.15 \| 1021	0.0 \| 0.0
2018-12-22	5 \| 41.0	1 \| 33.8	79	5 \| 3.11	30.12 \| 1020	8.0 \| 0.31
2018-12-23	7 \| 44.6	4 \| 39.2	88	8 \| 4.97	29.97 \| 1015	1.9 \| 0.07
2018-12-24	6 \| 42.8	3 \| 37.4	89	7 \| 4.35	30.06 \| 1018	0.0 \| 0.0
2018-12-25	4 \| 39.2	2 \| 35.6	85	3 \| 1.86	30.21 \| 1023	0.0 \| 0.0
2018-12-26	4 \| 39.2	2 \| 35.6	89	6 \| 3.73	30.09 \| 1019	3.1 \| 0.12
2018-12-27	4 \| 39.2	2 \| 35.6	90	2 \| 1.24	30.33 \| 1027	0.7 \| 0.03
2018-12-28	5 \| 41.0	3 \| 37.4	88	8 \| 4.97	30.3 \| 1026	10.5 \| 0.41
2018-12-29	9 \| 48.2	8 \| 46.4	90	19 \| 11.81	30.03 \| 1017	11.0 \| 0.43
2018-12-30	5 \| 41.0	3 \| 37.4	90	5 \| 3.11	30.15 \| 1021	13.4 \| 0.53
2018-12-31	4 \| 39.2	1 \| 33.8	81	5 \| 3.11	30.45 \| 1031	0.0 \| 0.0

Prev Month Next Month

Time	Temperature	Dew Point	Humidity	Wind Speed	Pressure	Precipitation
December	° C \| ° F	° C \| ° F	%	Kph \| Mph	Hg \| Mb	Total (mm/in)
2018-12-01	5 \| 41.0	3 \| 37.4	89	3 \| 1.86	29.88 \| 1012	0.5 \| 0.02
2018-12-02	5 \| 41.0	3 \| 37.4	92	2 \| 1.24	30.15 \| 1021	0.7 \| 0.03
2018-12-03	5 \| 41.0	2 \| 35.6	84	6 \| 3.73	30.36 \| 1028	0.0 \| 0.0
2018-12-04	4 \| 39.2	-2 \| 28.4	71	7 \| 4.35	30.3 \| 1026	0.0 \| 0.0
2018-12-05	5 \| 41.0	-2 \| 28.4	66	7 \| 4.35	30.21 \| 1023	0.0 \| 0.0
2018-12-06	3 \| 37.4	-7 \| 19.4	53	6 \| 3.73	30.18 \| 1022	0.0 \| 0.0
2018-12-07	3 \| 37.4	-6 \| 21.2	55	5 \| 3.11	30.21 \| 1023	0.0 \| 0.0
2018-12-08	6 \| 42.8	-0 \| 32.0	71	5 \| 3.11	30.36 \| 1028	1.0 \| 0.04
2018-12-09	5 \| 41.0	2 \| 35.6	80	6 \| 3.73	30.21 \| 1023	16.1 \| 0.63
2018-12-10	6 \| 42.8	4 \| 39.2	90	8 \| 4.97	30.24 \| 1024	0.6 \| 0.02
2018-12-11	7 \| 44.6	5 \| 41.0	89	12 \| 7.46	29.85 \| 1011	17.2 \| 0.68
2018-12-12	6 \| 42.8	4 \| 39.2	84	9 \| 5.59	30.15 \| 1021	4.4 \| 0.17
2018-12-13	7 \| 44.6	5 \| 41.0	85	9 \| 5.59	30.0 \| 1016	6.9 \| 0.27
2018-12-14	9 \| 48.2	2 \| 35.6	68	11 \| 6.84	29.68 \| 1005	0.5 \| 0.02
2018-12-15	7 \| 44.6	2 \| 35.6	73	8 \| 4.97	29.97 \| 1015	0.1 \| 0.0
2018-12-16	9 \| 48.2	6 \| 42.8	87	7 \| 4.35	29.74 \| 1007	11.1 \| 0.44
2018-12-17	8 \| 46.4	5 \| 41.0	85	8 \| 4.97	29.88 \| 1012	5.6 \| 0.22
2018-12-18	9 \| 48.2	6 \| 42.8	84	16 \| 9.94	29.74 \| 1007	8.6 \| 0.34
2018-12-19	8 \| 46.4	5 \| 41.0	84	9 \| 5.59	30.18 \| 1022	0.8 \| 0.03
2018-12-20	9 \| 48.2	5 \| 41.0	81	16 \| 9.94	29.8 \| 1009	24.1 \| 0.95
2018-12-21	4 \| 39.2	1 \| 33.8	85	7 \| 4.35	30.15 \| 1021	0.0 \| 0.0
2018-12-22	5 \| 41.0	1 \| 33.8	79	5 \| 3.11	30.12 \| 1020	8.0 \| 0.31
2018-12-23	7 \| 44.6	4 \| 39.2	88	8 \| 4.97	29.97 \| 1015	1.9 \| 0.07
2018-12-24	6 \| 42.8	3 \| 37.4	89	7 \| 4.35	30.06 \| 1018	0.0 \| 0.0
2018-12-25	4 \| 39.2	2 \| 35.6	85	3 \| 1.86	30.21 \| 1023	0.0 \| 0.0
2018-12-26	4 \| 39.2	2 \| 35.6	89	6 \| 3.73	30.09 \| 1019	3.1 \| 0.12
2018-12-27	4 \| 39.2	2 \| 35.6	90	2 \| 1.24	30.33 \| 1027	0.7 \| 0.03
2018-12-28	5 \| 41.0	3 \| 37.4	88	8 \| 4.97	30.3 \| 1026	10.5 \| 0.41
2018-12-29	9 \| 48.2	8 \| 46.4	90	19 \| 11.81	30.03 \| 1017	11.0 \| 0.43
2018-12-30	5 \| 41.0	3 \| 37.4	90	5 \| 3.11	30.15 \| 1021	13.4 \| 0.53
2018-12-31	4 \| 39.2	1 \| 33.8	81	5 \| 3.11	30.45 \| 1031	0.0 \| 0.0

SeaTac Weather In December 2018

December 2018 Graph

December 2018 - Daily Observations

SeaTac Historical Data