World Resorts USA Portland Weather

Portland weather in December

Weather in Portland: December

Average day temperature: 44.1°F
Average night temperature: 38.9°F
Number of sunny days: 5 days
Day length: 8.7 - 9.0 hours
Number of rainy days: 8 days
Precipitation totals: 4.2 in.

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

Sunniest months:
July 21 days
August 21 days
September 16 days
Warmest months:
August 80.7 °F
July 79.5 °F
September 73.2 °F
Coldest months:
December 44.1 °F
January 45.0 °F
February 46.4 °F
Rainiest months:
January 9 days
March 9 days
February 8 days
Windiest months:
February 6.0 mph
March 5.7 mph
January 5.7 mph

Portland on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+32°F
+36°F
+72°F
+72°F
+43°F
+52°F
+75°F
+34°F
+77°F
+55°F
+50°F
+70°F
+70°F
+50°F
+28°F
24 Hours Forecast
Portland
Local time: 22:27
February 13, thursday
0000
25°F
SW
11 mph
0300
25°F
SW
12 mph
0600
25°F
SW
13 mph
0900
25°F
W
12 mph
1200
27°F
W
11 mph
1500
30°F
SW
12 mph
1800
32°F
SW
9 mph
2100
32°F
SW
9 mph
Units of measurement: °C / °F