Point Forecast: Swissvale PA  40.43N 79.9W (Elev. 274 m)	Last Update: 7:07 pm EDT Jul 12, 2025

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Date	07/12				07/13
Hour (EDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°C)	29	28	27	26	24	24	23	23	22	22	22	22	23	24	26	27	29	29	30	31	30	29	29	28
Surface Wind (km/h)	8	5	5	5	5	5	5	5	5	5	5	8	8	10	10	11	11	13	13	13	13	11	10	10
Wind Dir	SW	S	S	S	S	S	S	S	S	S	S	S	S	S	S	SW	SW	SW	SW	SW	W	W	W	W
Gust
Relative Humidity (%)	63	73	80	84	87	87	90	92	95	94	95	98	96	90	83	80	73	71	69	67	69	69	72	76
Mixing Height (x100m)	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	3	4	5	5	5	4	3	3	2
Ventilation Rate (x1000 mph-m)	2	1	1	1	2	1	2	2	2	1	1	2	3	4	6	9	15	19	25	20	17	12	9	5
Date					07/14
Hour (EDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°C)	27	25	24	23	23	22	22	22	21	21	21	21	22	23	25	27	27	28	29	29	30	30	29	28
Surface Wind (km/h)	5	3	3	3	3	3	3	3	3	3	3	3	3	3	5	5	5	8	8	8	10	10	8	5
Wind Dir	W	SW	W	W	W	W	W	W	W	NW	NW	W	W	W	W	W	W	W	W	W	W	W	W	NW
Gust
Relative Humidity (%)	81	89	92	95	97	98	99	100	100	100	100	100	100	92	84	77	70	64	58	57	55	54	57	61
Mixing Height (x100m)	1	1	1	1	1	1	1	1	1	1	0	0	1	1	2	3	4	5	5	6	6	6	4	2
Ventilation Rate (x1000 mph-m)	2	2	2	1	1	1	1	1	1	1	1	1	1	2	4	6	9	13	14	16	16	15	11	5

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