Weather History for Portland, OR

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Month of October, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 82 °F 64 °F 52 °F
Mean Temperature 66 °F 56 °F 48 °F
Min Temperature 59 °F 48 °F 40 °F
Degree Days  
Heating Degree Days (base 65) 17 9 0 266
Cooling Degree Days (base 65) 1 0 0 1
Growing Degree Days (base 50) 15 6 0 189
Dew Point  
Dew Point 63 °F 46 °F 16 °F
Precipitation  
Precipitation 0.73 in 0.16 in 0.00 in 4.71 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 36 mph 7 mph 0 mph
Gust Wind 45 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.02 in 29.58 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Oct. 02, 2012 Rise Set
Actual Time 7:10 AM PDT 6:47 PM PDT
Civil Twilight 6:41 AM PDT 7:17 PM PDT
Nautical Twilight 6:06 AM PDT 7:51 PM PDT
Astronomical Twilight 5:31 AM PDT 8:26 PM PDT
Moon 7:53 PM PDT (10/2) 9:53 AM PDT (10/2)
Length of Visible Light 12h 36m
Length of Day
11h 36m
Waning Gibbous, 93% of the Moon is Illuminated
Oct 2
Waning Gibbous
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter
Oct 29
Full

Weather History Calendar

Precipitation Actual month total 4.71 Normal Month Total: 3.00
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
82 | 49 0.00
Average:
70 | 49 0.06
Partly Cloudy
Actual:
70 | 51 0.00
Average:
70 | 49 0.07
Clear
Actual:
70 | 46 0.00
Average:
70 | 49 0.06
Scattered Clouds
Actual:
73 | 47 0.00
Average:
69 | 49 0.07
Clear
Actual:
73 | 40 0.00
Average:
69 | 48 0.06
Clear
Actual:
75 | 41 0.00
Average:
68 | 48 0.07
Clear
Actual:
79 | 41 0.00
Average:
68 | 48 0.07
Clear
Actual:
72 | 40 0.00
Average:
67 | 48 0.07
Partly Cloudy
Actual:
69 | 46 0.00
Average:
67 | 47 0.07
Fog
Actual:
66 | 45 0.00
Average:
66 | 47 0.07
Fog
Actual:
66 | 47 0.00
Average:
66 | 47 0.08
Rain
Actual:
54 | 49 0.73
Average:
65 | 47 0.08
Rain
Actual:
65 | 56 T
Average:
65 | 46 0.08
Rain
Actual:
66 | 56 T
Average:
65 | 46 0.09
Rain
Actual:
66 | 59 0.41
Average:
64 | 46 0.09
Rain
Actual:
64 | 54 0.03
Average:
64 | 46 0.09
Partly Cloudy
Actual:
62 | 43 0.00
Average:
63 | 46 0.10
Rain
Actual:
68 | 44 0.00
Average:
63 | 45 0.10
Rain
Actual:
60 | 55 0.22
Average:
62 | 45 0.11
Rain
Actual:
53 | 45 0.25
Average:
62 | 45 0.11
Rain
Actual:
54 | 42 0.11
Average:
62 | 45 0.11
Rain
Actual:
52 | 44 0.38
Average:
61 | 45 0.11
Rain
Actual:
53 | 42 0.02
Average:
61 | 45 0.12
Rain
Actual:
54 | 45 0.03
Average:
60 | 44 0.13
Rain
Actual:
56 | 41 0.01
Average:
60 | 44 0.12
Rain
Actual:
58 | 47 0.04
Average:
60 | 44 0.12
Rain
Actual:
61 | 50 0.54
Average:
59 | 44 0.13
Rain
Actual:
63 | 55 0.71
Average:
59 | 44 0.13
Rain
Actual:
68 | 57 0.56
Average:
58 | 44 0.14
Rain
Actual:
62 | 57 0.45
Average:
58 | 44 0.15
Rain
Actual:
60 | 54 0.22
Average:
58 | 43 0.14
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 82 66 49 58 49 42 83 58 32 30.27 30.18 30.09 10 10 10 21 5 28 0.00  
2 70 61 51 57 47 43 84 64 44 30.19 30.16 30.11 10 10 10 10 5 13 0.00  
3 70 58 46 43 31 23 74 47 20 30.26 30.21 30.16 10 10 10 36 16 45 0.00  
4 73 60 47 40 31 23 71 44 16 30.20 30.17 30.15 10 10 10 25 12 30 0.00  
5 73 57 40 41 29 20 76 45 14 30.22 30.17 30.13 10 10 10 30 13 37 0.00  
6 75 58 41 41 28 16 82 47 11 30.18 30.12 30.06 10 10 10 29 12 37 0.00  
7 79 60 41 44 35 29 76 46 16 30.06 29.99 29.90 10 10 10 9 5 23 0.00  
8 72 56 40 48 40 37 83 56 29 30.05 29.98 29.93 10 10 9 7 2 8 0.00  
9 69 58 46 50 46 43 93 69 44 30.14 30.07 30.00 10 9 6 9 3 12 0.00  
10 66 56 45 51 47 43 100 78 56 30.05 30.00 29.93 10 6 0 12 3 14 0.00 Fog
11 66 57 47 50 47 45 100 73 45 29.98 29.92 29.80 10 6 1 7 2 8 0.00 Fog
12 54 52 49 54 50 46 100 92 83 30.09 29.99 29.87 10 5 1 12 6 13 0.73 Rain
13 65 61 56 57 56 53 93 86 78 30.23 30.18 30.09 10 10 10 17 7 22 T Rain
14 66 61 56 59 56 53 100 87 73 30.17 30.06 29.95 10 10 4 17 10 22 T Rain
15 66 63 59 63 60 57 97 91 84 29.98 29.86 29.68 10 8 2 17 6 23 0.41 Rain
16 64 59 54 61 47 38 87 63 39 30.31 30.06 29.70 10 10 9 23 11 28 0.03 Rain
17 62 53 43 47 45 42 100 76 52 30.34 30.28 30.20 10 9 2 13 4 15 0.00  
18 68 56 44 53 46 42 100 71 42 30.21 30.07 29.89 10 6 0 15 4 18 0.00 Fog , Rain
19 60 58 55 55 52 47 93 83 72 29.94 29.87 29.80 10 8 2 22 10 28 0.22 Rain
20 53 49 45 48 44 39 93 85 77 29.99 29.95 29.90 10 9 3 25 4 31 0.25 Rain
21 54 48 42 45 43 40 92 76 59 29.95 29.88 29.75 10 10 5 14 8 18 0.11 Rain
22 52 48 44 45 43 39 100 86 71 29.73 29.63 29.58 10 9 5 20 8 25 0.38 Rain
23 53 48 42 45 41 38 86 75 63 29.89 29.85 29.74 10 10 7 29 8 36 0.02 Rain
24 54 50 45 45 43 40 93 78 63 30.19 30.00 29.88 10 10 7 17 8 24 0.03 Rain
25 56 49 41 44 43 41 100 81 61 30.43 30.35 30.22 10 10 8 9 3 13 0.01 Rain
26 58 53 47 50 46 41 93 83 72 30.31 30.18 30.13 10 7 2 17 7 21 0.04 Rain
27 61 56 50 59 52 47 100 89 77 30.14 30.00 29.88 10 6 2 22 11 29 0.54 Rain
28 63 59 55 61 57 52 100 92 84 29.98 29.93 29.84 10 8 2 21 5 28 0.71 Rain
29 68 63 57 60 57 54 100 84 67 30.05 29.98 29.85 10 10 4 18 10 25 0.56 Rain
30 62 60 57 58 57 56 100 95 90 29.99 29.88 29.79 10 9 4 16 9 18 0.45 Rain
31 60 57 54 57 54 51 100 93 86 29.78 29.72 29.68 10 9 5 21 9 26 0.22 Rain