STATE COLLEGE, PENNSYLVANIA DAILY WEATHER SUMMARY
-- Latest Complete Day [1200 UT - 1200 UT] --
15 December 2025
High Temperature : 19 Rank (1=Warmest, 130=Coldest) : 124
Low Temperature : 12 Rank (1=Coldest, 130=Warmest) : 22
Mean Temperature : 16 Departure (129-Year) :-13.57
Rain or Liquid Equivalent : TRACE Rank (1=Wettest, 130=Driest) : 55
Snow and/or Ice Pellets : TRACE Rank (1=Snowiest, 130=Least) : 27
Snow Depth : 1 Heating Degree-Days : 49
-- Weather Summary for The Day --
-- Records (Most Recent Occurrence) --
Record High Temperature (2015) : 62 Record Low Temperature (1904) : -5
Record Low High Temperature (1914) : 10 Record High Low Temperature (2015) : 48
Record Rain or Liquid Equivalent (1901) : 1.21 Record Snow and/or Ice Pellets (2013) : 6.0
-- Averages (Previous 129-, 30-, 10-Year) --
* Data are Unsmoothed *
129-Year Average High Temperature : 35.98 129-Year Average Low Temperature : 22.17
30-Year Average High Temperature : 39.50 30-Year Average Low Temperature : 26.97
10-Year Average High Temperature : 39.70 10-Year Average Low Temperature : 25.90
-- Long-Term Totals [Monthly, Seasonal, Annual] --
December 2025
-- Month-to-Date Statistics --
Average High Temperature : 31.73 Rank (1=Warmest, 130=Coldest) : 120
Average Low Temperature : 20.13 Rank (1=Coldest, 130=Warmest) : 20
Mean Monthly Temperature : 25.93 Departure (129-Year) : -6.47
Total Rain or Liquid Equivalent : 0.44 Rank (1=Wettest, 130=Driest) : 117
Total Snow and/or Ice Pellets : 3.9 Rank (1=Snowiest, 130=Least) : 42
Total Heating Degree-Days : 582 Total Cooling Degree-Days : 0
-- Records (Most Recent Occurrence) --
Highest Mean High Temperature (2015) : 47.68 Lowest Mean Low Temperature (1989) : 12.00
Highest Mean December Temperature (2015) : 41.42 Lowest Mean December Temperature (1989) : 18.85
Wettest December (1901) : 6.59 Driest December (1955) : 0.32
Snowiest December (1969) : 31.4
-- Averages (Previous 129-, 30-, 10-Year) --
129-Year Average High Temperature : 37.48 129-Year Average Low Temperature : 23.67
30-Year Average High Temperature : 39.35 30-Year Average Low Temperature : 26.28
10-Year Average High Temperature : 40.61 10-Year Average Low Temperature : 27.90
129-Year Average Temperature : 30.57 129-Year Average Heating Degree-Days : 1057
30-Year Average Temperature : 32.81 30-Year Average Heating Degree-Days : 990
10-Year Average Temperature : 34.25 10-Year Average Heating Degree-Days : 945
129-Year Average Rain or Liquid Equivalent: 2.82 129-Year Average Snow and/or Ice Pellets : 7.9
30-Year Average Rain or Liquid Equivalent: 3.20 30-Year Average Snow and/or Ice Pellets : 7.4
10-Year Average Rain or Liquid Equivalent: 3.31 10-Year Average Snow and/or Ice Pellets : 5.1
Winter (DJF) 2025-2026
-- Season-to-Date Statistics --
Average High Temperature : 31.73 Rank (1=Warmest, 130=Coldest) : 120
Average Low Temperature : 20.13 Rank (1=Coldest, 130=Warmest) : 20
Mean WINTER Temperature : 25.93 Departure (130-Year) : -6.47
Total Rain or Liquid Equivalent : 0.44 Rank (1=Wettest, 130=Driest) : 117
Total Snow and/or Ice Pellets : 3.9 Rank (1=Snowiest, 130=Least) : 42
Total Heating Degree-Days : 582 Total Cooling Degree-Days : 0
-- Records (Most Recent Occurrence) --
Highest Mean High Temperature (1932) : 43.77 Lowest Mean Low Temperature (1918) : 12.18
Highest Mean WINTER Temperature (1932) : 36.45 Lowest Mean WINTER Temperature (1918) : 20.33
Wettest WINTER (1910) : 13.64 Driest WINTER (1944) : 3.86
Snowiest WINTER (1978) : 78.7
-- Averages (Previous 130-, 30-, 10-Year) --
130-Year Average High Temperature : 35.99 130-Year Average Low Temperature : 21.01
30-Year Average High Temperature : 37.49 30-Year Average Low Temperature : 23.09
10-Year Average High Temperature : 38.97 10-Year Average Low Temperature : 24.82
130-Year Average Temperature : 28.50 130-Year Average Heating Degree-Days : 3264
30-Year Average Temperature : 30.29 30-Year Average Heating Degree-Days : 3115
10-Year Average Temperature : 31.90 10-Year Average Heating Degree-Days : 2967
130-Year Average Rain or Liquid Equivalent: 8.08 130-Year Average Snow and/or Ice Pellets : 30.2
30-Year Average Rain or Liquid Equivalent: 8.63 30-Year Average Snow and/or Ice Pellets : 29.0
10-Year Average Rain or Liquid Equivalent: 9.32 10-Year Average Snow and/or Ice Pellets : 21.4
2025
-- Year-to-Date Statistics --
Average High Temperature : 60.44 Rank (1=Warmest, 130=Coldest) : 50
Average Low Temperature : 43.19 Rank (1=Coldest, 130=Warmest) : 115
Mean Annual Temperature : 51.81 Departure (129-Year) : 1.20
Total Rain or Liquid Equivalent : 36.93 Rank (1=Wettest, 130=Driest) : 76
Total Snow and/or Ice Pellets : 19.6 Rank (1=Snowiest, 130=Least) : 122
Total Heating Degree-Days : 5307 Total Cooling Degree-Days : 794
-- Records (Most Recent Occurrence) --
Highest Mean High Temperature (2023) : 61.95 Lowest Mean Low Temperature (1924) : 36.52
Highest Mean Annual Temperature (2024) : 53.00 Lowest Mean Annual Temperature (1917) : 45.76
Wettest Year (2018) : 63.75 Driest Year (1930) : 24.81
Snowiest Year (1994) : 102.6
-- Averages (Previous 129-, 30-, 10-Year) --
129-Year Average High Temperature : 58.97 129-Year Average Low Temperature : 40.34
30-Year Average High Temperature : 59.61 30-Year Average Low Temperature : 42.13
10-Year Average High Temperature : 60.28 10-Year Average Low Temperature : 43.15
129-Year Average Temperature : 49.66 129-Year Average Heating Degree-Days : 6156
30-Year Average Temperature : 50.87 30-Year Average Heating Degree-Days : 5811
10-Year Average Temperature : 51.71 10-Year Average Heating Degree-Days : 5587
129-Year Average Rain or Liquid Equivalent: 39.25 129-Year Average Snow and/or Ice Pellets : 44.5
30-Year Average Rain or Liquid Equivalent: 41.77 30-Year Average Snow and/or Ice Pellets : 39.0
10-Year Average Rain or Liquid Equivalent: 42.92 10-Year Average Snow and/or Ice Pellets : 31.8
2025-2026
-- Cold/Snow Season-to-Date Statistics [1 July - 30 June] --
Total Snow and/or Ice Pellets : 5.9 Rank (1=Snowiest, 130=Least) : 52
Total Heating Degree-Days : 1724 Rank (1=Most, 130=Least) : 71
-- Records (Most Recent Occurrence) --
Snowiest Season (1993-1994) : 109.3 Least Snowy Season (2019-2020) : 13.2
Most Heating Degree-Days (1903-1904) : 7316 Least Heating Degree-Days (2023-2024) : 4982
-- Averages (Previous 130-, 30-, 10-Year) --
130-Year Average Snow and/or Ice Pellets : 44.3 130-Year Average Heating Degree-Days : 6155
30-Year Average Snow and/or Ice Pellets : 38.8 30-Year Average Heating Degree-Days : 5802
10-Year Average Snow and/or Ice Pellets : 28.8 10-Year Average Heating Degree-Days : 5519