Princeton Weather Information
Princeton historical weather data by month.
Chance Of Sunshine
ANNUAL CHANCE OF SUNSHINE 56%
Annual chance of sunshine: 56%
Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
48.39%
7
8
16
February
50.00%
7
7
14
March
51.61%
8
8
15
April
53.33%
7
9
14
May
54.84%
6
11
14
June
60.00%
7
11
12
July
61.29%
7
12
12
August
63.33%
8
11
11
September
63.33%
10
9
11
October
62.50%
11
9
12
November
53.33%
7
9
14
December
50.00%
7
8
15
Temperature
JULY HIGH 85° - JANUARY LOW 21.5°
Month
Average
Max Average
Min Average
January
30.1°
38.6°
21.5°
February
32.3°
41.1°
23.4°
March
40.7°
50.1°
31.2°
April
50.2°
61°
39.4°
May
60.3°
71.6°
48.9°
June
69.1°
80.2°
57.9°
July
74.1°
85°
63.2°
August
72.4°
83.2°
61.6°
September
65.1°
76.2°
54°
October
53.8°
65.2°
42.3°
November
44.4°
54.2°
34.6°
December
35.1°
43.5°
26.7°
Rainfall
Average Annual Rainfall 48.25 inches
Month
Average Rainfall
January
3.79 Inches
February
2.96 Inches
March
3.89 Inches
April
3.91 Inches
May
4.65 Inches
June
3.74 Inches
July
5.32 Inches
August
4.2 Inches
September
4.42 Inches
October
3.63 Inches
November
3.84 Inches
December
3.9 Inches
Sum Of Heating & Cooling Degree Days
Potential Demand For Energy
Month
Heating Degree Days
Cooling Degree Days
January
1085
0
February
917
0
March
755
0
April
445
0
May
173
26
June
21
143
July
0
282
August
2
232
September
57
61
October
356
7
November
618
0
December
928
0