Mailing Address:
Pennsylvania State Climatologist503 Walker Building
University Park, PA 16802
| Cloud Ceiling (% less than altitude) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Date and Time | Temp (°F) | STDV Temp (°F) | Dew Pt (°F) | STDV Dew Pt (°F) | Pressure (mb) | STDV Pressure (mb) | Wind (mph) | STDV Wind (mph) | 10000 (ft) | 5000 (ft) | 2000 (ft) | 1000 (ft) | 500 (ft) | 100 (ft) | 4-21 00:00:00 | 60.5 | ± 8.1 | 40.8 | ± 11.8 | 1015.7 | ± 5.0 | 8.8 | ± 3.7 | 35 | 24 | 3 | 4-21 01:00:00 | 58.0 | ± 7.5 | 41.5 | ± 10.8 | 1015.8 | ± 4.7 | 7.8 | ± 3.2 | 35 | 24 | 6 | 6 | 4-21 02:00:00 | 56.4 | ± 7.4 | 40.9 | ± 9.8 | 1015.9 | ± 4.6 | 7.7 | ± 4.6 | 35 | 24 | 6 | 4-21 03:00:00 | 56.5 | ± 7.1 | 43.3 | ± 9.9 | 1016.2 | ± 4.6 | 7.3 | ± 4.1 | 38 | 21 | 3 | 4-21 04:00:00 | 54.3 | ± 7.7 | 41.1 | ± 8.8 | 1016.2 | ± 4.6 | 8.8 | ± 5.9 | 29 | 15 | 3 | 4-21 05:00:00 | 53.4 | ± 7.0 | 42.5 | ± 7.4 | 1016.3 | ± 4.5 | 7.5 | ± 4.4 | 21 | 9 | 3 | 4-21 06:00:00 | 51.2 | ± 6.7 | 43.0 | ± 6.5 | 1016.1 | ± 4.7 | 6.6 | ± 4.0 | 18 | 15 | 3 | 4-21 07:00:00 | 49.6 | ± 7.8 | 43.2 | ± 6.5 | 1015.8 | ± 4.8 | 5.6 | ± 5.5 | 18 | 9 | 3 | 3 | 4-21 08:00:00 | 49.3 | ± 7.3 | 41.0 | ± 6.9 | 1015.9 | ± 4.8 | 5.7 | ± 4.4 | 21 | 12 | 3 | 3 | 4-21 09:00:00 | 48.5 | ± 7.1 | 40.5 | ± 6.6 | 1016.1 | ± 4.8 | 7.2 | ± 4.7 | 12 | 9 | 9 | 3 | 4-21 10:00:00 | 47.9 | ± 7.1 | 40.9 | ± 7.8 | 1016.6 | ± 4.9 | 6.3 | ± 3.5 | 32 | 18 | 15 | 6 | 3 | 4-21 11:00:00 | 48.5 | ± 7.1 | 41.2 | ± 8.0 | 1017.1 | ± 5.0 | 5.9 | ± 4.2 | 32 | 18 | 12 | 6 | 4-21 12:00:00 | 50.7 | ± 6.6 | 42.6 | ± 8.1 | 1017.6 | ± 5.1 | 6.5 | ± 5.2 | 41 | 26 | 18 | 15 | 4-21 13:00:00 | 53.4 | ± 6.0 | 43.0 | ± 8.9 | 1017.7 | ± 5.2 | 7.6 | ± 5.5 | 35 | 26 | 15 | 12 | 3 | 4-21 14:00:00 | 55.7 | ± 6.0 | 43.5 | ± 8.8 | 1017.7 | ± 5.3 | 8.9 | ± 5.2 | 38 | 26 | 6 | 3 | 4-21 15:00:00 | 57.4 | ± 5.6 | 43.0 | ± 9.9 | 1017.5 | ± 5.5 | 9.9 | ± 5.5 | 38 | 29 | 6 | 3 | 4-21 16:00:00 | 59.5 | ± 6.8 | 43.7 | ± 9.6 | 1017.3 | ± 5.7 | 9.6 | ± 3.5 | 50 | 32 | 6 | 3 | 4-21 17:00:00 | 60.7 | ± 7.4 | 43.1 | ± 10.9 | 1016.8 | ± 5.7 | 10.7 | ± 3.4 | 62 | 41 | 9 | 9 | 3 | 4-21 18:00:00 | 60.9 | ± 7.5 | 43.2 | ± 11.9 | 1016.5 | ± 5.9 | 12.0 | ± 4.0 | 53 | 35 | 15 | 6 | 4-21 19:00:00 | 61.1 | ± 8.4 | 45.4 | ± 11.6 | 1016.1 | ± 6.1 | 11.1 | ± 4.5 | 56 | 50 | 15 | 3 | 4-21 20:00:00 | 60.5 | ± 8.6 | 44.6 | ± 10.7 | 1015.6 | ± 6.1 | 11.8 | ± 5.7 | 53 | 50 | 12 | 3 | 4-21 21:00:00 | 60.4 | ± 8.6 | 44.9 | ± 11.0 | 1014.1 | ± 5.6 | 9.2 | ± 5.1 | 56 | 50 | 18 | 6 | 4-21 22:00:00 | 58.8 | ± 8.5 | 41.2 | ± 10.6 | 1015.2 | ± 6.0 | 9.6 | ± 3.9 | 47 | 38 | 9 | 4-21 23:00:00 | 57.4 | ± 8.2 | 43.2 | ± 11.7 | 1014.9 | ± 6.1 | 9.2 | ± 4.4 | 47 | 32 | 12 |