Weather History for Portland, OR

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Month of May, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 85 °F 69 °F 50 °F
Mean Temperature 71 °F 60 °F 47 °F
Min Temperature 60 °F 50 °F 40 °F
Degree Days  
Heating Degree Days (base 65) 18 6 0 172
Cooling Degree Days (base 65) 6 1 0 16
Growing Degree Days (base 50) 20 10 0 300
Dew Point  
Dew Point 60 °F 47 °F 31 °F
Precipitation  
Precipitation 0.88 in 0.12 in 0.00 in 3.46 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 28 mph 7 mph 0 mph
Gust Wind 36 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.54 in 30.08 in 29.65 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 26, 2013 Rise Set
Actual Time 5:28 AM PDT 8:47 PM PDT
Civil Twilight 4:52 AM PDT 9:23 PM PDT
Nautical Twilight 4:05 AM PDT 10:10 PM PDT
Astronomical Twilight 3:05 AM PDT 11:10 PM PDT
Moon 10:37 PM PDT (5/26) 7:04 AM PDT (5/26)
Length of Visible Light 16h 31m
Length of Day
15h 18m
Waning Gibbous, 96% of the Moon is Illuminated
May 26
Waning Gibbous
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Jun 23
Full

Weather History Calendar

Precipitation Actual month total 3.46 Normal Month Total: 2.47
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
72 | 40 0.00
Average:
65 | 45 0.07
Partly Cloudy
Actual:
79 | 43 0.00
Average:
65 | 46 0.08
Scattered Clouds
Actual:
79 | 49 0.00
Average:
65 | 46 0.08
Clear
Actual:
83 | 47 0.00
Average:
65 | 46 0.08
Clear
Actual:
85 | 49 0.00
Average:
66 | 46 0.08
Clear
Actual:
84 | 53 0.00
Average:
66 | 47 0.08
Scattered Clouds
Actual:
75 | 50 0.00
Average:
66 | 47 0.07
Partly Cloudy
Actual:
70 | 53 0.00
Average:
66 | 47 0.08
Partly Cloudy
Actual:
79 | 51 0.00
Average:
67 | 47 0.08
Partly Cloudy
Actual:
83 | 53 0.00
Average:
67 | 47 0.08
Partly Cloudy
Actual:
85 | 57 0.00
Average:
67 | 48 0.08
Rain
Actual:
71 | 60 0.08
Average:
67 | 48 0.07
Rain
Actual:
70 | 58 T
Average:
68 | 48 0.08
Partly Cloudy
Actual:
67 | 46 0.00
Average:
68 | 48 0.08
Rain
Actual:
59 | 50 0.03
Average:
68 | 49 0.08
Rain
Actual:
66 | 54 0.16
Average:
68 | 49 0.07
Rain
Actual:
66 | 49 0.02
Average:
68 | 49 0.08
Rain
Actual:
58 | 52 0.12
Average:
69 | 49 0.08
Partly Cloudy
Actual:
66 | 54 0.00
Average:
69 | 49 0.07
Partly Cloudy
Actual:
73 | 48 0.00
Average:
69 | 50 0.08
Rain
Actual:
58 | 48 0.48
Average:
69 | 50 0.08
Rain
Actual:
50 | 43 0.45
Average:
69 | 50 0.08
Rain
Actual:
55 | 47 0.42
Average:
70 | 50 0.08
Rain
Actual:
59 | 48 0.28
Average:
70 | 50 0.09
Mostly Cloudy
Actual:
68 | 50 0.00
Average:
70 | 51 0.08
Rain
Actual:
65 | 54 0.11
Average:
70 | 51 0.09
Rain
Actual:
67 | 40 0.88
Average:
70 | 51 0.08
Rain
Actual:
65 | 52 0.01
Average:
70 | 51 0.09
Rain
Actual:
65 | 52 0.36
Average:
70 | 51 0.08
Rain
Actual:
62 | 49 0.06
Average:
71 | 51 0.09
Partly Cloudy
Actual:
69 | 51 0.00
Average:
71 | 52 0.08
 

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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 72 56 40 39 35 33 79 52 25 30.54 30.49 30.45 10 10 10 13 6 16 0.00  
2 79 61 43 43 37 34 71 46 21 30.47 30.35 30.25 10 10 10 16 7 25 0.00  
3 79 64 49 44 40 35 66 48 29 30.31 30.23 30.14 10 10 10 16 7 24 0.00  
4 83 65 47 47 38 31 80 48 16 30.14 30.03 29.91 10 10 10 28 9 36 0.00  
5 85 67 49 46 40 34 71 44 16 29.91 29.81 29.70 10 10 10 28 11 33 0.00  
6 84 69 53 53 48 42 83 56 28 29.88 29.82 29.74 10 10 10 10 5 16 0.00  
7 75 63 50 54 49 47 89 64 38 30.04 29.96 29.91 10 10 10 14 5 20 0.00  
8 70 62 53 53 50 48 89 71 53 30.16 30.11 30.06 10 10 10 7 2 9 0.00  
9 79 65 51 52 50 47 89 61 33 30.21 30.16 30.07 10 10 9 13 4 17 0.00  
10 83 68 53 54 52 50 89 62 34 30.20 30.15 30.09 10 10 10 12 4 14 0.00  
11 85 71 57 57 53 48 72 52 32 30.19 30.10 29.99 10 10 10 9 3 10 0.00  
12 71 66 60 59 57 55 90 76 61 30.12 30.10 30.07 10 9 4 13 5 16 0.08 Rain
13 70 64 58 57 52 41 93 69 45 30.23 30.11 30.05 10 10 4 26 9 36 T Rain
14 67 57 46 43 40 36 86 59 32 30.24 30.18 30.11 10 10 10 14 4 17 0.00  
15 59 55 50 52 48 42 83 72 61 30.12 30.09 30.04 10 10 7 9 4 12 0.03 Rain
16 66 60 54 55 52 50 100 82 63 30.03 29.98 29.94 10 9 2 16 4 22 0.16 Rain
17 66 58 49 52 47 42 93 69 44 30.11 30.04 30.00 10 10 10 16 6 20 0.02 Rain
18 58 55 52 53 49 46 86 77 67 30.29 30.19 30.12 10 10 9 10 4 13 0.12 Rain
19 66 60 54 54 48 44 100 73 45 30.42 30.36 30.30 10 10 7 17 5 21 0.00  
20 73 61 48 48 45 37 86 59 31 30.36 30.16 29.92 10 10 10 9 3 14 0.00  
21 58 53 48 47 45 42 93 78 62 29.99 29.90 29.84 10 9 2 20 7 26 0.48 Rain
22 50 47 43 47 43 39 93 88 83 29.99 29.96 29.95 10 8 2 20 12 25 0.45 Rain
23 55 51 47 48 45 44 93 82 71 30.04 30.01 29.97 10 8 2 16 11 23 0.42 Rain
24 59 54 48 49 47 45 93 78 62 30.10 30.04 29.99 10 10 6 20 9 23 0.28 Rain
25 68 59 50 50 46 39 93 64 35 30.08 30.03 29.94 10 10 10 13 5 17 0.00  
26 65 60 54 54 50 46 100 76 52 30.04 30.00 29.96 10 9 2 18 10 24 0.11 Rain
27 67 54 40 60 51 47 100 82 63 29.99 29.82 29.75 10 8 3 24 12 31 0.88 Rain
28 65 59 52 52 48 41 93 69 44 29.94 29.89 29.78 10 10 7 18 8 24 0.01 Rain
29 65 59 52 54 49 43 100 72 44 30.07 29.81 29.65 10 9 4 21 13 29 0.36 Rain
30 62 56 49 52 48 44 89 71 52 30.27 30.16 30.08 10 10 6 17 5 20 0.06 Rain
31 69 60 51 51 46 41 93 66 39 30.34 30.29 30.24 10 10 10 14 6 18 0.00