Mercer Island Weather In September 2012

Historical Data for September 2012 in Mercer Island, United States

Temperature	Max	Average	Min
Max Temperature	33.0°C (91.4°F)	23.9°C (75.02°F)	16.0°C (60.8°F)
Avg Temperature	25.0°C (77.0°F)	18.6°C (65.48°F)	14.0°C (57.2°F)
Min Temperature	15.0°C (59.0°F)	9.83°C (49.69°F)	5.0°C (41.0°F)
Dew Point	Max	Average	Min
Dew Point	12.0°C (53.6°F)	8.7°C (47.66°F)	4.0°C (39.2°F)
Precipitation	Max	Average	Min	Sum
Precipitation	1.5mm \| 0.06in	0.11mm \| 0.0in	0.0mm \| 0in	3.2mm \| 0.13in
Snowdepth	0.0mm \| 0in	0.0mm \| 0in	0.0mm \| 0in	0.0mm \| 0in
Wind	Max	Average	Min
Wind	10.0kmh \| 6.21mph	5.53kmh \| 3.44mph	3.0kmh \| 1.86mph
Gust Wind	15.0kmh \| 9.32mph	8.6kmh \| 5.34mph	5.0kmh \| 3.11mph
Sea Level Pressure	Max	Average	Min
Sea Level Pressure	1.5mb	0.11mb	0.0mb

September 2012 Graph

September 2012 - Daily Observations

Time	Temperature	Dew Point	Humidity	Wind Speed	Pressure	Precipitation
September	° C \| ° F	° C \| ° F	%	Kph \| Mph	Hg \| Mb	Total (mm/in)
2012-09-01	18 \| 64.4	9 \| 48.2	73	4 \| 2.49	30.06 \| 1018	0.0 \| 0.0
2012-09-02	18 \| 64.4	8 \| 46.4	68	5 \| 3.11	30.12 \| 1020	0.0 \| 0.0
2012-09-03	18 \| 64.4	10 \| 50.0	74	6 \| 3.73	30.12 \| 1020	0.0 \| 0.0
2012-09-04	14 \| 57.2	11 \| 51.8	82	5 \| 3.11	30.12 \| 1020	0.0 \| 0.0
2012-09-05	15 \| 59.0	10 \| 50.0	75	6 \| 3.73	30.0 \| 1016	0.0 \| 0.0
2012-09-06	22 \| 71.6	10 \| 50.0	61	8 \| 4.97	30.03 \| 1017	0.0 \| 0.0
2012-09-07	25 \| 77.0	8 \| 46.4	45	6 \| 3.73	30.12 \| 1020	0.0 \| 0.0
2012-09-08	24 \| 75.2	7 \| 44.6	46	7 \| 4.35	30.0 \| 1016	0.0 \| 0.0
2012-09-09	16 \| 60.8	11 \| 51.8	80	10 \| 6.21	29.94 \| 1014	0.2 \| 0.01
2012-09-10	14 \| 57.2	9 \| 48.2	79	7 \| 4.35	30.09 \| 1019	1.5 \| 0.06
2012-09-11	15 \| 59.0	5 \| 41.0	69	7 \| 4.35	30.24 \| 1024	0.0 \| 0.0
2012-09-12	17 \| 62.6	5 \| 41.0	58	10 \| 6.21	30.3 \| 1026	0.0 \| 0.0
2012-09-13	22 \| 71.6	4 \| 39.2	43	7 \| 4.35	30.18 \| 1022	0.0 \| 0.0
2012-09-14	21 \| 69.8	5 \| 41.0	48	5 \| 3.11	30.06 \| 1018	0.0 \| 0.0
2012-09-15	20 \| 68.0	9 \| 48.2	65	3 \| 1.86	30.12 \| 1020	0.0 \| 0.0
2012-09-16	20 \| 68.0	9 \| 48.2	68	5 \| 3.11	30.15 \| 1021	0.0 \| 0.0
2012-09-17	22 \| 71.6	9 \| 48.2	60	5 \| 3.11	30.06 \| 1018	0.0 \| 0.0
2012-09-18	25 \| 77.0	10 \| 50.0	57	4 \| 2.49	30.03 \| 1017	0.0 \| 0.0
2012-09-19	22 \| 71.6	12 \| 53.6	66	5 \| 3.11	30.09 \| 1019	0.0 \| 0.0
2012-09-20	21 \| 69.8	10 \| 50.0	65	5 \| 3.11	30.09 \| 1019	0.0 \| 0.0
2012-09-21	18 \| 64.4	11 \| 51.8	78	5 \| 3.11	30.09 \| 1019	0.0 \| 0.0
2012-09-22	15 \| 59.0	10 \| 50.0	85	4 \| 2.49	30.12 \| 1020	1.0 \| 0.04
2012-09-23	17 \| 62.6	9 \| 48.2	76	5 \| 3.11	30.09 \| 1019	0.0 \| 0.0
2012-09-24	18 \| 64.4	9 \| 48.2	71	4 \| 2.49	30.09 \| 1019	0.0 \| 0.0
2012-09-25	16 \| 60.8	9 \| 48.2	75	4 \| 2.49	30.09 \| 1019	0.1 \| 0.0
2012-09-26	16 \| 60.8	9 \| 48.2	75	4 \| 2.49	30.06 \| 1018	0.0 \| 0.0
2012-09-27	18 \| 64.4	9 \| 48.2	69	5 \| 3.11	30.0 \| 1016	0.0 \| 0.0
2012-09-28	19 \| 66.2	8 \| 46.4	64	3 \| 1.86	29.97 \| 1015	0.0 \| 0.0
2012-09-29	16 \| 60.8	10 \| 50.0	76	7 \| 4.35	30.15 \| 1021	0.4 \| 0.02
2012-09-30	16 \| 60.8	6 \| 42.8	66	5 \| 3.11	30.33 \| 1027	0.0 \| 0.0

Prev Month Next Month

Time	Temperature	Dew Point	Humidity	Wind Speed	Pressure	Precipitation
September	° C \| ° F	° C \| ° F	%	Kph \| Mph	Hg \| Mb	Total (mm/in)
2012-09-01	18 \| 64.4	9 \| 48.2	73	4 \| 2.49	30.06 \| 1018	0.0 \| 0.0
2012-09-02	18 \| 64.4	8 \| 46.4	68	5 \| 3.11	30.12 \| 1020	0.0 \| 0.0
2012-09-03	18 \| 64.4	10 \| 50.0	74	6 \| 3.73	30.12 \| 1020	0.0 \| 0.0
2012-09-04	14 \| 57.2	11 \| 51.8	82	5 \| 3.11	30.12 \| 1020	0.0 \| 0.0
2012-09-05	15 \| 59.0	10 \| 50.0	75	6 \| 3.73	30.0 \| 1016	0.0 \| 0.0
2012-09-06	22 \| 71.6	10 \| 50.0	61	8 \| 4.97	30.03 \| 1017	0.0 \| 0.0
2012-09-07	25 \| 77.0	8 \| 46.4	45	6 \| 3.73	30.12 \| 1020	0.0 \| 0.0
2012-09-08	24 \| 75.2	7 \| 44.6	46	7 \| 4.35	30.0 \| 1016	0.0 \| 0.0
2012-09-09	16 \| 60.8	11 \| 51.8	80	10 \| 6.21	29.94 \| 1014	0.2 \| 0.01
2012-09-10	14 \| 57.2	9 \| 48.2	79	7 \| 4.35	30.09 \| 1019	1.5 \| 0.06
2012-09-11	15 \| 59.0	5 \| 41.0	69	7 \| 4.35	30.24 \| 1024	0.0 \| 0.0
2012-09-12	17 \| 62.6	5 \| 41.0	58	10 \| 6.21	30.3 \| 1026	0.0 \| 0.0
2012-09-13	22 \| 71.6	4 \| 39.2	43	7 \| 4.35	30.18 \| 1022	0.0 \| 0.0
2012-09-14	21 \| 69.8	5 \| 41.0	48	5 \| 3.11	30.06 \| 1018	0.0 \| 0.0
2012-09-15	20 \| 68.0	9 \| 48.2	65	3 \| 1.86	30.12 \| 1020	0.0 \| 0.0
2012-09-16	20 \| 68.0	9 \| 48.2	68	5 \| 3.11	30.15 \| 1021	0.0 \| 0.0
2012-09-17	22 \| 71.6	9 \| 48.2	60	5 \| 3.11	30.06 \| 1018	0.0 \| 0.0
2012-09-18	25 \| 77.0	10 \| 50.0	57	4 \| 2.49	30.03 \| 1017	0.0 \| 0.0
2012-09-19	22 \| 71.6	12 \| 53.6	66	5 \| 3.11	30.09 \| 1019	0.0 \| 0.0
2012-09-20	21 \| 69.8	10 \| 50.0	65	5 \| 3.11	30.09 \| 1019	0.0 \| 0.0
2012-09-21	18 \| 64.4	11 \| 51.8	78	5 \| 3.11	30.09 \| 1019	0.0 \| 0.0
2012-09-22	15 \| 59.0	10 \| 50.0	85	4 \| 2.49	30.12 \| 1020	1.0 \| 0.04
2012-09-23	17 \| 62.6	9 \| 48.2	76	5 \| 3.11	30.09 \| 1019	0.0 \| 0.0
2012-09-24	18 \| 64.4	9 \| 48.2	71	4 \| 2.49	30.09 \| 1019	0.0 \| 0.0
2012-09-25	16 \| 60.8	9 \| 48.2	75	4 \| 2.49	30.09 \| 1019	0.1 \| 0.0
2012-09-26	16 \| 60.8	9 \| 48.2	75	4 \| 2.49	30.06 \| 1018	0.0 \| 0.0
2012-09-27	18 \| 64.4	9 \| 48.2	69	5 \| 3.11	30.0 \| 1016	0.0 \| 0.0
2012-09-28	19 \| 66.2	8 \| 46.4	64	3 \| 1.86	29.97 \| 1015	0.0 \| 0.0
2012-09-29	16 \| 60.8	10 \| 50.0	76	7 \| 4.35	30.15 \| 1021	0.4 \| 0.02
2012-09-30	16 \| 60.8	6 \| 42.8	66	5 \| 3.11	30.33 \| 1027	0.0 \| 0.0

Mercer Island Weather In September 2012

September 2012 Graph

September 2012 - Daily Observations

Mercer Island Historical Data