Weather History for Portland Hillsboro, OR

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 97 °F 72 °F 55 °F
Mean Temperature 77 °F 63 °F 51 °F
Min Temperature 61 °F 53 °F 40 °F
Degree Days  
Heating Degree Days (base 65) 14 4 0 131
Cooling Degree Days (base 65) 12 2 0 64
Growing Degree Days (base 50) 27 12 0 373
Dew Point  
Dew Point 65 °F 54 °F 39 °F
Precipitation  
Precipitation 1.73 in 0.22 in 0.00 in 6.27 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 28 mph 5 mph 0 mph
Gust Wind 40 mph 24 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.18 in 29.90 in 29.34 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 21, 2013 Rise Set
Actual Time 6:58 AM PDT 7:10 PM PDT
Civil Twilight 6:28 AM PDT 7:40 PM PDT
Nautical Twilight 5:53 AM PDT 8:14 PM PDT
Astronomical Twilight 5:17 AM PDT 8:50 PM PDT
Moon 8:14 PM PDT (9/21) 9:31 AM PDT (9/21)
Length of Visible Light 13h 11m
Length of Day
12h 12m
Waning Gibbous, 94% of the Moon is Illuminated
Sep 21
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Weather History Calendar

Precipitation Actual month total 6.27 Normal Month Total: 1.44
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear
Actual:
83 | 56 0.00
Average:
79 | 49 0.03
Rain
Actual:
80 | 61 0.01
Average:
79 | 49 0.04
Thunderstorm
Actual:
79 | 60 0.05
Average:
79 | 49 0.04
Partly Cloudy
Actual:
75 | 59 0.01
Average:
78 | 48 0.04
Thunderstorm
Actual:
67 | 60 0.77
Average:
78 | 48 0.04
Rain
Actual:
70 | 55 0.65
Average:
78 | 48 0.03
Fog
Actual:
81 | 52 0.00
Average:
78 | 48 0.02
Clear
Actual:
85 | 54 0.00
Average:
77 | 48 0.03
Scattered Clouds
Actual:
86 | 56 0.00
Average:
77 | 48 0.02
Clear
Actual:
91 | 56 0.00
Average:
77 | 48 0.03
Clear
Actual:
97 | 57 0.00
Average:
77 | 47 0.02
Scattered Clouds
Actual:
84 | 57 0.00
Average:
76 | 47 0.03
Partly Cloudy
Actual:
74 | 57 0.00
Average:
76 | 47 0.03
Partly Cloudy
Actual:
80 | 59 0.00
Average:
76 | 47 0.03
Thunderstorm
Actual:
66 | 58 0.04
Average:
75 | 47 0.03
Rain
Actual:
70 | 57 0.34
Average:
75 | 46 0.05
Rain
Actual:
68 | 49 T
Average:
75 | 46 0.05
Partly Cloudy
Actual:
72 | 45 0.00
Average:
74 | 46 0.05
Fog
Actual:
78 | 42 0.00
Average:
74 | 46 0.06
Rain
Actual:
72 | 45 0.01
Average:
73 | 46 0.05
Rain
Actual:
66 | 53 0.12
Average:
73 | 45 0.05
Rain
Actual:
62 | 54 0.19
Average:
73 | 45 0.06
Rain
Actual:
63 | 52 0.09
Average:
72 | 45 0.06
Rain
Actual:
60 | 48 0.27
Average:
72 | 45 0.07
Rain
Actual:
60 | 44 0.06
Average:
71 | 44 0.07
Rain
Actual:
65 | 40 0.13
Average:
71 | 44 0.08
Rain
Actual:
55 | 47 0.24
Average:
71 | 44 0.08
Rain
Actual:
62 | 52 1.73
Average:
70 | 44 0.08
Rain
Actual:
56 | 47 1.39
Average:
70 | 44 0.08
Rain
Actual:
60 | 48 0.17
Average:
69 | 43 0.09
 

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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 83 70 56 56 54 50 93 64 34 29.90 29.85 29.78 10 10 10 15 3 18 0.00  
2 80 71 61 59 56 51 84 62 39 29.92 29.89 29.87 10 10 8 16 4 18 0.01 Rain
3 79 70 60 59 57 52 90 65 39 29.99 29.96 29.93 10 10 9 15 4 19 0.05 Rain , Thunderstorm
4 75 67 59 60 58 56 87 71 54 30.05 30.01 29.97 10 10 10 14 4 15 0.01  
5 67 64 60 61 59 57 93 86 78 30.03 30.00 29.96 10 8 2 16 3 18 0.77 Rain , Thunderstorm
6 70 63 55 60 58 55 100 82 63 30.12 30.07 30.01 10 9 4 14 7 19 0.65 Rain
7 81 67 52 60 56 52 100 73 45 30.11 30.04 29.96 10 7 0 10 3 14 0.00 Fog
8 85 70 54 61 58 54 93 65 37 30.06 30.02 29.98 10 10 8 15 4 18 0.00  
9 86 71 56 62 59 55 93 68 43 30.04 29.98 29.91 10 10 10 14 4 19 0.00  
10 91 74 56 62 59 56 93 64 34 29.92 29.85 29.77 10 10 10 12 3 14 0.00  
11 97 77 57 65 59 56 93 59 25 29.91 29.85 29.81 10 10 10 12 4 17 0.00  
12 84 71 57 64 59 55 93 71 48 30.00 29.95 29.88 10 10 10 8 3 - 0.00  
13 74 66 57 62 58 56 97 81 64 29.97 29.92 29.84 10 8 2 10 2 13 0.00  
14 80 70 59 64 59 55 100 77 54 29.86 29.80 29.69 10 10 9 10 3 12 0.00  
15 66 62 58 62 59 56 100 89 78 29.88 29.78 29.70 10 7 2 7 3 9 0.04 Rain , Thunderstorm
16 70 64 57 59 57 54 100 83 66 29.97 29.94 29.88 10 8 1 15 6 17 0.34 Rain
17 68 59 49 57 51 45 100 73 45 30.00 29.91 29.87 10 10 10 16 5 20 T Rain
18 72 59 45 52 47 45 100 69 38 30.11 30.05 30.01 10 9 2 9 2 12 0.00  
19 78 60 42 51 46 41 100 66 32 30.01 29.90 29.78 10 8 0 7 2 11 0.00 Fog
20 72 59 45 55 53 45 93 73 53 29.77 29.70 29.65 10 10 10 17 3 21 0.01 Rain
21 66 60 53 57 54 52 100 84 67 29.78 29.73 29.69 10 9 0 13 2 16 0.12 Fog , Rain
22 62 58 54 56 53 50 100 86 72 29.85 29.75 29.66 10 8 2 24 10 33 0.19 Rain
23 63 58 52 56 53 50 93 80 67 30.00 29.95 29.87 10 9 5 14 5 17 0.09 Rain
24 60 54 48 52 49 46 100 84 67 29.99 29.92 29.87 10 9 2 17 2 23 0.27 Rain
25 60 52 44 48 47 44 100 80 60 30.05 29.93 29.87 10 9 3 7 3 11 0.06 Rain
26 65 53 40 52 45 39 100 78 56 30.18 30.10 30.05 10 4 0 9 1 12 0.13 Fog , Rain
27 55 51 47 52 49 46 100 92 83 30.17 30.08 29.92 10 5 0 20 8 27 0.24 Fog , Rain
28 62 57 52 58 54 49 96 90 83 29.89 29.67 29.52 10 6 2 26 13 35 1.73 Rain
29 56 52 47 53 50 44 93 82 71 29.67 29.58 29.34 10 7 2 28 14 40 1.39 Rain
30 60 54 48 51 47 44 89 73 57 29.99 29.84 29.62 10 9 3 20 11 25 0.17 Rain