Portland, OregonDecember 1999
North America Region, US
Complete daily temperature records for December 1999 with 31 days of comprehensive weather data.
Avg: 43.9°F
31 Days
31 Records
Monthly Average
43.9°F
December 1999
Highest Day
52.0°F
Lowest Day
34.3°F
Daily Range
17.7°F
Daily Temperature Progression
48°F
1
49°F
2
44°F
3
42°F
4
46°F
5
48°F
6
44°F
7
43°F
8
45°F
9
44°F
10
48°F
11
51°F
12
41°F
13
44°F
14
49°F
15
52°F
16
51°F
17
51°F
18
46°F
19
47°F
20
46°F
21
40°F
22
41°F
23
41°F
24
36°F
25
40°F
26
43°F
27
39°F
28
34°F
29
36°F
30
36°F
31
Weekday
Weekend
Daily Temperature Records
| Date | Day | Temperature | Deviation |
|---|---|---|---|
| 1999-12-01 | Wed | 47.5°F | +3.6°F |
| 1999-12-02 | Thu | 48.8°F | +4.9°F |
| 1999-12-03 | Fri | 43.8°F | -0.1°F |
| 1999-12-04 | Sat | 42.4°F | -1.5°F |
| 1999-12-05 | Sun | 45.6°F | +1.7°F |
| 1999-12-06 | Mon | 47.9°F | +4.0°F |
| 1999-12-07 | Tue | 43.7°F | -0.2°F |
| 1999-12-08 | Wed | 43.2°F | -0.7°F |
| 1999-12-09 | Thu | 44.5°F | +0.6°F |
| 1999-12-10 | Fri | 43.6°F | -0.3°F |
| 1999-12-11 | Sat | 47.8°F | +3.9°F |
| 1999-12-12 | Sun | 50.7°F | +6.8°F |
| 1999-12-13 | Mon | 40.6°F | -3.3°F |
| 1999-12-14 | Tue | 43.6°F | -0.3°F |
| 1999-12-15 | Wed | 49.4°F | +5.5°F |
| 1999-12-16 | Thu | 52.0°F | +8.1°F |
| 1999-12-17 | Fri | 50.8°F | +6.9°F |
| 1999-12-18 | Sat | 51.2°F | +7.3°F |
| 1999-12-19 | Sun | 46.3°F | +2.4°F |
| 1999-12-20 | Mon | 46.8°F | +2.9°F |
| 1999-12-21 | Tue | 45.5°F | +1.6°F |
| 1999-12-22 | Wed | 40.1°F | -3.8°F |
| 1999-12-23 | Thu | 40.7°F | -3.2°F |
| 1999-12-24 | Fri | 40.8°F | -3.1°F |
| 1999-12-25 | Sat | 35.9°F | -8.0°F |
| 1999-12-26 | Sun | 39.6°F | -4.3°F |
| 1999-12-27 | Mon | 42.6°F | -1.3°F |
| 1999-12-28 | Tue | 39.0°F | -4.9°F |
| 1999-12-29 | Wed | 34.3°F | -9.6°F |
| 1999-12-30 | Thu | 35.7°F | -8.2°F |
| 1999-12-31 | Fri | 36.4°F | -7.5°F |