Weather History for Portland, OR

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Month of October, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 74 °F 62 °F 54 °F
Mean Temperature 63 °F 56 °F 46 °F
Min Temperature 58 °F 50 °F 36 °F
Degree Days  
Heating Degree Days (base 65) 19 9 2 277
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 12 5 0 169
Dew Point  
Dew Point 58 °F 48 °F 33 °F
Precipitation  
Precipitation 0.38 in 0.06 in 0.00 in 1.46 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 22 mph 5 mph 0 mph
Gust Wind 30 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.48 in 30.09 in 29.44 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Oct. 08, 2011 Rise Set
Actual Time 7:17 AM PDT 6:37 PM PDT
Civil Twilight 6:47 AM PDT 7:07 PM PDT
Nautical Twilight 6:13 AM PDT 7:41 PM PDT
Astronomical Twilight 5:38 AM PDT 8:16 PM PDT
Moon 4:56 PM PDT (10/8) 4:02 AM PDT (10/8)
Length of Visible Light 12h 19m
Length of Day
11h 20m
Waxing Gibbous, 90% of the Moon is Illuminated
Oct 8
Waxing Gibbous
Oct 11
Full
Oct 19
Last Quarter
Oct 26
New
Nov 2
First Quarter

Weather History Calendar

Precipitation Actual month total 1.46 Normal Month Total: 3.00
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
61 | 57 0.03
Average:
70 | 49 0.06
Rain
Actual:
63 | 55 0.02
Average:
70 | 49 0.07
Rain
Actual:
65 | 56 0.13
Average:
70 | 49 0.06
Rain
Actual:
67 | 52 0.14
Average:
69 | 49 0.07
Rain
Actual:
58 | 50 0.04
Average:
69 | 48 0.06
Rain
Actual:
57 | 50 0.02
Average:
68 | 48 0.07
Rain
Actual:
59 | 53 0.02
Average:
68 | 48 0.07
Mostly Cloudy
Actual:
69 | 54 0.00
Average:
67 | 48 0.07
Rain
Actual:
59 | 55 0.02
Average:
67 | 47 0.07
Rain
Actual:
66 | 54 0.38
Average:
66 | 47 0.07
Rain
Actual:
65 | 55 0.17
Average:
66 | 47 0.08
Rain
Actual:
63 | 51 T
Average:
65 | 47 0.08
Rain
Actual:
56 | 51 0.04
Average:
65 | 46 0.08
Rain
Actual:
60 | 49 T
Average:
65 | 46 0.09
Overcast
Actual:
62 | 50 0.00
Average:
64 | 46 0.09
Partly Cloudy
Actual:
63 | 49 0.00
Average:
64 | 46 0.09
Fog
Actual:
65 | 45 0.00
Average:
63 | 46 0.10
Clear
Actual:
74 | 48 0.00
Average:
63 | 45 0.10
Mostly Cloudy
Actual:
62 | 51 0.00
Average:
62 | 45 0.11
Rain
Actual:
61 | 52 T
Average:
62 | 45 0.11
Overcast
Actual:
63 | 54 T
Average:
62 | 45 0.11
Rain
Actual:
68 | 58 T
Average:
61 | 45 0.11
Rain
Actual:
62 | 57 0.01
Average:
61 | 45 0.12
Scattered Clouds
Actual:
59 | 41 0.00
Average:
60 | 44 0.13
Partly Cloudy
Actual:
59 | 38 T
Average:
60 | 44 0.12
Fog
Actual:
54 | 37 0.00
Average:
60 | 44 0.12
Fog
Actual:
58 | 36 0.00
Average:
59 | 44 0.13
Rain
Actual:
58 | 45 0.14
Average:
59 | 44 0.13
Fog
Actual:
61 | 48 0.00
Average:
58 | 44 0.14
Rain
Actual:
63 | 52 0.30
Average:
58 | 44 0.15
Rain
Actual:
57 | 41 T
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

2011 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 61 59 57 55 51 48 86 75 64 29.97 29.93 29.87 10 10 7 10 5 13 0.03 Rain
2 63 59 55 56 55 53 93 86 78 29.96 29.93 29.86 10 10 7 12 4 16 0.02 Rain
3 65 61 56 55 52 47 93 73 52 29.88 29.86 29.84 10 10 8 13 7 16 0.13 Rain
4 67 60 52 52 48 40 93 68 43 29.84 29.66 29.44 10 10 3 21 8 29 0.14 Rain
5 58 54 50 48 46 44 89 76 62 29.78 29.60 29.47 10 10 6 18 8 23 0.04 Rain
6 57 54 50 52 49 46 89 81 72 30.12 30.00 29.81 10 9 2 8 5 10 0.02 Rain
7 59 56 53 54 52 50 93 84 75 30.22 30.18 30.13 10 10 4 15 6 20 0.02 Rain
8 69 62 54 54 52 48 93 71 49 30.24 30.17 30.11 10 10 9 12 4 14 0.00  
9 59 57 55 55 53 52 93 87 80 30.12 30.02 29.83 10 9 2 8 2 10 0.02 Rain
10 66 60 54 58 54 51 93 78 63 29.80 29.67 29.61 10 6 2 20 10 24 0.38 Rain
11 65 60 55 54 52 49 93 80 67 30.18 29.93 29.70 10 9 5 22 11 30 0.17 Rain
12 63 57 51 52 49 45 93 73 52 30.27 30.22 30.17 10 10 9 10 2 13 T Rain
13 56 54 51 50 48 46 89 81 72 30.23 30.11 29.98 10 10 10 7 3 10 0.04 Rain
14 60 55 49 54 49 46 93 80 67 29.99 29.97 29.94 10 10 7 9 4 10 T Rain
15 62 56 50 52 49 46 93 80 67 30.06 30.02 29.97 10 8 1 10 5 13 0.00  
16 63 56 49 48 46 45 93 75 56 30.32 30.16 30.02 10 10 10 9 3 10 0.00  
17 65 55 45 47 45 43 100 74 48 30.41 30.34 30.23 10 5 0 9 3 10 0.00 Fog
18 74 61 48 48 45 43 86 61 35 30.21 30.06 29.94 10 10 10 18 10 26 0.00  
19 62 57 51 54 50 45 83 77 71 30.13 30.06 29.92 10 10 10 16 6 18 0.00  
20 61 57 52 52 50 47 89 75 60 30.13 30.10 30.06 10 10 5 10 3 13 T Rain
21 63 59 54 54 51 48 93 77 60 30.29 30.23 30.14 10 10 8 13 7 16 T  
22 68 63 58 55 54 52 93 78 63 30.28 30.25 30.22 10 10 10 18 9 23 T Rain
23 62 60 57 55 50 43 80 70 60 30.22 30.18 30.12 10 10 6 14 5 17 0.01 Rain
24 59 50 41 44 41 37 92 68 44 30.38 30.30 30.20 10 10 10 10 2 14 0.00  
25 59 49 38 43 40 36 93 70 47 30.45 30.40 30.37 10 8 2 10 4 16 T  
26 54 46 37 42 38 33 100 73 46 30.39 30.33 30.27 10 5 0 9 3 13 0.00 Fog
27 58 47 36 43 39 36 100 72 43 30.33 30.25 30.10 10 7 0 9 4 12 0.00 Fog
28 58 52 45 52 45 36 92 73 54 30.16 30.08 30.03 10 9 2 21 8 25 0.14 Rain
29 61 55 48 51 48 46 100 84 67 30.33 30.26 30.18 10 4 0 7 2 9 0.00 Fog
30 63 58 52 58 53 45 100 95 90 30.26 30.16 30.10 10 6 2 13 8 17 0.30 Rain
31 57 49 41 46 41 37 96 74 51 30.48 30.39 30.27 10 10 10 18 4 24 T Fog , Rain