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| Climatological Information for Portland, United States |
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| Location of weather station : 45.6 N, 122.7 W, altitude : 12 m |
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Data
Period |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Mean Maximum
Temperature (deg. C) |
1961-1990 |
7.4 |
10.6 |
13.3 |
15.9 |
19.5 |
23.3 |
26.6 |
26.8 |
23.7 |
17.8 |
11.4 |
7.6 |
Mean Temperature
(deg. C) |
1961-1990 |
4.2 |
6.4 |
8.5 |
10.6 |
13.9 |
17.5 |
20.1 |
20.3 |
17.4 |
12.5 |
7.8 |
4.6 |
Mean Minimum
Temperature (deg. C) |
1961-1990 |
0.9 |
2.3 |
3.7 |
5.2 |
8.3 |
11.6 |
13.6 |
13.8 |
11.1 |
7.2 |
4.2 |
1.6 |
| Rainfall Amount (mm) |
1961-1990 |
135.9 |
97.8 |
90.4 |
60.7 |
52.3 |
37.6 |
16.0 |
27.7 |
44.4 |
67.8 |
135.6 |
155.7 |
| Days with Rain* |
1961-1990 |
14.7 |
12.9 |
14.4 |
11.1 |
9.0 |
6.3 |
2.8 |
4.1 |
6.3 |
9.4 |
15.9 |
15.7 |
Mean Daily Sunshine
Duration (hours) |
1961-1990 |
2.8 |
4.2 |
6.2 |
7.4 |
8.9 |
9.7 |
10.7 |
9.6 |
7.9 |
4.9 |
2.6 |
2.1 |
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| * denotes number of days with at least 1.0 mm of rainfall |
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