Weather in Portland: December
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Average day temperature: | 44.1°F |
Average night temperature: | 38.9°F | |
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Number of sunny days: | 5 days |
Day length: | 8.7 - 9.0 hours | |
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Number of rainy days: | 8 days |
Precipitation totals: | 4.2 in. | |
more information |
14 days
forecast
forecast
Portland |
weather in
January
January
Portland |
Air temperature in December, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
9
18
27
36
45
54
63
72
Day temperature | Night temperature |
The highest day temperature during December of 2024 was 54°F. At the same time the lowest night temperature was 31°F. Day and night temperature averages during December were 46.2°F and 41.3°F.
Sunny, partly cloudy and cloudy days
Sunny days | |
Partly cloudy days | |
Cloudy days |
13%
13%
74%
Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in December, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.9
1.8
2.7
3.5
4.4
5.3
6.2
7.1
3.3
2.9
1.8
2.0
2.0
3.8
3.4
4.4
5.2
3.9
3.3
2.9
1.8
2.0
2.0
3.8
3.4
4.4
5.2
Precipitation total value in Portland in December is 3.9 in. Other months of the year show relatively similar values.
Wind speed in December, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.0
2.0
3.1
4.1
5.1
6.1
7.1
5.2
4.7
4.1
4.3
4.6
4.8
4.6
5.1
5.4
5.9
5.9
5.4
5.2
4.7
4.1
4.3
4.6
4.8
4.6
5.1
5.4
5.9
5.9
The average wind speed value in December is 5.4 mph It makes December one of the most windy months of the year.
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.1
4.3
6.4
8.6
10.7
12.8
15.0
2.6
5.6
8.3
10.6
12.5
9.7
7.1
5.5
4.0
3.0
2.9
2.0
2.6
5.6
8.3
10.6
12.5
9.7
7.1
5.5
4.0
3.0
2.9
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 2.0.
Best time for vacation in Portland
Portland on a weather map
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Places in USA:
Name
°F
24 Hours Forecast
Portland
Local time: 22:27
February 13, thursday
0000
![](https://core.weather-stats.com/img/weather/medium/6.png)
25°F
SW
11 mph
11 mph
0300
![](https://core.weather-stats.com/img/weather/medium/4.png)
25°F
SW
12 mph
12 mph
0600
![](https://core.weather-stats.com/img/weather/medium/4.png)
25°F
SW
13 mph
13 mph
0900
![](https://core.weather-stats.com/img/weather/medium/4.png)
25°F
W
12 mph
12 mph
1200
![](https://core.weather-stats.com/img/weather/medium/4.png)
27°F
W
11 mph
11 mph
1500
![](https://core.weather-stats.com/img/weather/medium/4.png)
30°F
SW
12 mph
12 mph
1800
![](https://core.weather-stats.com/img/weather/medium/4.png)
32°F
SW
9 mph
9 mph
2100
![](https://core.weather-stats.com/img/weather/medium/4.png)
32°F
SW
9 mph
9 mph