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| Point Forecast: West Mifflin PA 40.36N 79.91W (Elev. 1017 ft) |
Last Update: 4:04 am EDT Mar 21, 2019 |
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| Date | 03/21 | 03/22 | ||||||||||||||||||||||
| Hour (EDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 42 | 42 | 41 | 41 | 41 | 43 | 45 | 47 | 48 | 50 | 51 | 51 | 51 | 50 | 49 | 48 | 47 | 46 | 44 | 43 | 42 | 41 | 40 | 39 |
| Dewpoint (°F) | 26 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 30 | 31 | 32 | 34 | 35 | 36 | 37 | 37 | 37 | 36 | 37 | 37 | 37 | 36 | 35 | 35 |
| Wind Chill (°F) | 39 | 39 | 38 | 38 | 38 | 41 | 44 | 47 | 48 | 50 | 49 | 48 | 46 | 45 | 43 | 41 | 39 | 37 | 36 | 35 | 34 | |||
| Surface Wind (mph) | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 8 |
| Wind Dir | SE | SE | SE | SE | SE | SE | S | S | S | SW | SW | SW | W | W | W | NW | NW | NW | NW | NW | NW | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 92 | 95 | 96 | 98 | 98 | 98 | 98 | 98 | 97 | 97 | 97 | 98 | 98 | 99 | 99 | 98 | 97 | 94 | 87 | 73 | 88 | 88 | 89 | 89 |
| Precipitation Potential (%) | 3 | 4 | 9 | 12 | 15 | 18 | 20 | 24 | 28 | 29 | 29 | 32 | 35 | 35 | 34 | 34 | 31 | 28 | 23 | 18 | 19 | 20 | 22 | 23 |
| Relative Humidity (%) | 52 | 54 | 54 | 55 | 55 | 54 | 52 | 48 | 48 | 48 | 49 | 51 | 53 | 58 | 63 | 65 | 67 | 70 | 75 | 80 | 82 | 82 | 83 | 83 |
| Rain | -- | -- | -- | -- | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 03/23 | |||||||||||||||||||||||
| Hour (EDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 39 | 38 | 37 | 36 | 36 | 37 | 38 | 39 | 40 | 40 | 40 | 40 | 39 | 38 | 37 | 36 | 34 | 32 | 31 | 30 | 29 | 29 | 28 | 28 |
| Dewpoint (°F) | 34 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 19 | 19 |
| Wind Chill (°F) | 33 | 32 | 31 | 30 | 29 | 29 | 30 | 32 | 32 | 32 | 32 | 31 | 30 | 29 | 28 | 26 | 25 | 23 | 22 | 20 | 20 | 20 | 19 | 19 |
| Surface Wind (mph) | 8 | 9 | 9 | 9 | 9 | 10 | 11 | 13 | 14 | 15 | 15 | 16 | 16 | 16 | 15 | 15 | 14 | 13 | 11 | 11 | 10 | 10 | 10 | 10 |
| Wind Dir | W | W | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | 25 | 26 | 28 | 28 | 28 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 20 | 20 | 20 | |||||||||
| Sky Cover (%) | 91 | 92 | 93 | 92 | 91 | 90 | 89 | 88 | 87 | 87 | 86 | 87 | 88 | 90 | 87 | 84 | 81 | 81 | 81 | 80 | 78 | 75 | 72 | 71 |
| Precipitation Potential (%) | 25 | 32 | 38 | 45 | 53 | 60 | 63 | 65 | 64 | 62 | 61 | 59 | 56 | 53 | 50 | 41 | 32 | 23 | 23 | 23 | 23 | 20 | 16 | 16 |
| Relative Humidity (%) | 83 | 84 | 85 | 86 | 85 | 81 | 76 | 70 | 66 | 64 | 62 | 60 | 59 | 58 | 58 | 58 | 59 | 61 | 63 | 64 | 65 | 67 | 68 | 67 |
| Rain | Chc | Chc | -- | -- | -- | -- | -- | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | -- | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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