Annual mean 13°C · wettest around December · prevailing wind W
Warmest
29.2 °C
Coldest
2.6 °C
Wettest
42%
Windiest
4.5 m/s
Prevailing
W
3.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Princeton over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -1°C. Princeton has no sharply defined rainy season: the chance of rain on a given day runs from 33% in June, the driest month, to 42% in December, the wettest. Winds in Princeton are highest in March, averaging 3.3 m/s (12 km/h), and lightest in July, at 2.0 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in Princeton come in November, when the sky is typically 35% covered; May is the cloudiest month, at 52%.
Month by month Princeton climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
3°C
-1°C
-2°C
38%
47%
3.0 m/s
1
0
8
February
5°C
0°C
0°C
42%
44%
2.9 m/s
2
0
19
March
9°C
3°C
5°C
38%
44%
3.3 m/s
11
0
37
April
15°C
8°C
11°C
37%
46%
3.2 m/s
29
3
59
May
20°C
13°C
18°C
34%
52%
2.6 m/s
59
17
66
June
26°C
18°C
25°C
33%
39%
2.4 m/s
61
46
34
July
29°C
22°C
30°C
39%
36%
2.0 m/s
25
61
6
August
28°C
20°C
29°C
36%
37%
2.0 m/s
39
61
13
September
24°C
17°C
24°C
36%
42%
2.2 m/s
67
36
44
October
18°C
11°C
16°C
39%
42%
2.2 m/s
54
10
69
November
11°C
5°C
7°C
37%
35%
2.5 m/s
14
0
47
December
6°C
1°C
1°C
42%
45%
2.6 m/s
1
0
17
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Princeton weather by season
Year round, Princeton has days of about 3°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -1°C to 22°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around December and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Princeton weather in winterDecember to February
High 5°CLow 0°CRain 41%
Winter in Princeton has typical daily highs of about 5°C and lows of about 0°C, with a 41% chance of rain on a given day.
Princeton weather in springMarch to May
High 15°CLow 8°CRain 36%
Spring in Princeton has typical daily highs of about 15°C and lows of about 8°C, with a 36% chance of rain on a given day.
Princeton weather in summerJune to August
High 27°CLow 20°CRain 36%
Summer in Princeton has typical daily highs of about 27°C and lows of about 20°C, with a 36% chance of rain on a given day.
Princeton weather in autumnSeptember to November
High 18°CLow 11°CRain 37%
Autumn in Princeton has typical daily highs of about 18°C and lows of about 11°C, with a 37% chance of rain on a given day.
When is the rainy season in Princeton?
Princeton has no sharply defined rainy season: the chance of rain on a given day runs from 33% in June, the driest month, to 42% in December, the wettest.
What time of year is Princeton windiest?
Winds in Princeton are highest in March, averaging 3.3 m/s (12 km/h), and lightest in July, at 2.0 m/s (7 km/h). The prevailing wind is from the W.
What is the average temperature in Princeton year round?
The average temperature in Princeton over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -1°C.