Altoona
Climatic Data - Provides the norm's and "records", including Temperatures, heating & cooling degree days, percent of possible sunshine, sky cover, precipitation, relative humidity, and sunrise/set times.
Hourly Observations - Provides hourly weather observations for the period of record.
Daily Weather Archives - Provides the daily maximum temperature, minimum temperature, average temperature, Heating & Cooling Degree Days, Growing Degree Days, Average Dewpoint, Average Relative Humidity, Average Wind Speed, Average Wind Direction, Average Pressure, and the Total Precipitation.
Means & Extremes - Contains the Daily Mean Temperatures and the Daily Extremes (record max, min, precipitation, and snowfall) including the year in which they occurred.
| Date | Time | VIS | PRESS | TMP | DEW | RH | DIR | SPEED | GST | MX24 | MN24 | 1hRa | 24hRa | wx | CLOUDS | REMARKS |
| 01/28/1977 | 0500 | 15.0 | 1003.7 | 12.2 | 0.1 | 57 | 200 | 6.9 | | | | | | | SCT 12000 | |
| 01/01/1977 | 0400 | 10.0 | 1020.3 | 25.2 | 20.1 | 80 | 30 | 8.1 | | | | | | | SCT 4500 BKN 25000 | |
| 01/01/1977 | 0300 | 10.0 | 1021.3 | 27.1 | 22.1 | 81 | 40 | 9.2 | | | | | | | BKN 25000 | |
| 01/01/1977 | 0200 | 10.0 | 1021.3 | 26.2 | 21.2 | 80 | 50 | 9.2 | | | | | | | BKN 25000 | |
| 01/01/1977 | 0100 | 10.0 | 1021.3 | 25.2 | 20.1 | 80 | 40 | 8.1 | | | | | | | BKN 25000 | |
