WEATHER in Philadelphia
Weather in Philadelphia. Temperature and Precipitation. January 2021.
Monthly mean temperature normal* for January: 33.0°F. Monthly mean temperature in this month: 32.0°F. Departure of temperature from normal: -1.2°F.
Precipitation normal* for January: 3.03 in. Precipitation total in this month: 1250.5 in. This amount is 41271% from normal.
The lowest minimum temperature (32°F) recorded on January, 1. The highest maximum temperature (32°F) recorded on January, 1.
* 1981-2010 Climate Normals.
Explanation of graph. The current minimum, average, maximum temperatures are plotted by solid lines, respectively, blue, green and red. Normal values are shown by solid thin lines. Highest maximum and lowest minimum for each day are bold points respectively red and blue.
Explanation of the daily and monthly records. The temperature records for each day identified as the lowest and the highest values for a number of daily data. For Philadelphia daily records based on data from 1872. Monthly records values based on data from 1758 - air temperature, 1872 - precipitation.
Based on data of stations: Philadelphia 03/1758 - 12/1871, Philadelphia WBO 01/1872 - 06/1940, Philadelphia Airport 06/1940 - 12/1947, Philadelphia Intl 01/1948 - present.
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