Monthly
     

Monthly Historical AveragesBryn Mawr, PA

Average Temperature
High
5°
Feels 3
Low
-2°
Feels -6
Average Precipitation
10 Days
Rain amount
53.7mm
Snow amount
8.1cm
Content continues below

Daily Historical Averages

S
M
T
W
T
F
S
ForecastWednesday, December 31, 2025
Day
Flurries
-1°Feels -7
Wind
22 km/h SW
Gust
45 km/h
Humidity
69%
P.O.P
70%
Snow
1-3 cm
Night
Snow
-9°Feels -17
Wind
25 km/h SW
Gust
41 km/h
Humidity
97%
P.O.P
80%
Snow
~5 cm
Historical AveragesDec 31
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
Content continues below