Weather History for Lewiston, ID

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 99 °F 79 °F 60 °F
Mean Temperature 83 °F 68 °F 53 °F
Min Temperature 70 °F 57 °F 45 °F
Degree Days  
Heating Degree Days (base 65) 12 3 0 87
Cooling Degree Days (base 65) 18 6 0 184
Growing Degree Days (base 50) 32 18 3 539
Dew Point  
Dew Point 64 °F 48 °F 33 °F
Precipitation  
Precipitation 0.36 in 0.07 in 0.00 in 1.57 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 29 mph 5 mph 0 mph
Gust Wind 37 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.15 in 29.86 in 29.49 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 06, 2013 Rise Set
Actual Time 6:15 AM PDT 7:16 PM PDT
Civil Twilight 5:44 AM PDT 7:47 PM PDT
Nautical Twilight 5:07 AM PDT 8:23 PM PDT
Astronomical Twilight 4:28 AM PDT 9:02 PM PDT
Moon 7:39 AM PDT (9/6) 7:34 PM PDT (9/6)
Length of Visible Light 14h 02m
Length of Day
13h 01m
New Moon, 2% of the Moon is Illuminated
Sep 6
New Moon
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New

Weather History Calendar

Precipitation Actual month total 1.57 Normal Month Total: 0.67
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear
Actual:
94 | 62 T
Average:
84 | 56 0.02
Rain
Actual:
83 | 70 0.01
Average:
84 | 55 0.03
Rain
Actual:
86 | 68 0.06
Average:
83 | 55 0.02
Clear
Actual:
92 | 63 0.00
Average:
83 | 55 0.02
Thunderstorm
Actual:
84 | 64 0.32
Average:
83 | 55 0.03
Partly Cloudy
Actual:
77 | 63 T
Average:
82 | 54 0.02
Scattered Clouds
Actual:
81 | 56 0.00
Average:
82 | 54 0.02
Partly Cloudy
Actual:
79 | 60 0.00
Average:
82 | 54 0.02
Scattered Clouds
Actual:
89 | 57 0.00
Average:
81 | 53 0.02
Clear
Actual:
93 | 58 0.00
Average:
81 | 53 0.02
Clear
Actual:
99 | 60 0.00
Average:
80 | 53 0.02
Clear
Actual:
97 | 63 0.00
Average:
80 | 52 0.02
Clear
Actual:
96 | 66 0.00
Average:
80 | 52 0.02
Clear
Actual:
99 | 65 0.00
Average:
79 | 52 0.02
Thunderstorm
Actual:
98 | 67 0.03
Average:
79 | 51 0.02
Thunderstorm
Actual:
81 | 61 T
Average:
78 | 51 0.02
Thunderstorm
Actual:
71 | 54 0.31
Average:
78 | 51 0.03
Rain
Actual:
69 | 49 0.04
Average:
77 | 50 0.02
Clear
Actual:
77 | 47 0.00
Average:
77 | 50 0.02
Clear
Actual:
89 | 50 T
Average:
76 | 50 0.02
Rain
Actual:
71 | 56 T
Average:
76 | 49 0.03
Rain
Actual:
71 | 54 0.09
Average:
76 | 49 0.02
Partly Cloudy
Actual:
69 | 51 0.01
Average:
75 | 49 0.03
Rain
Actual:
61 | 50 0.36
Average:
75 | 48 0.02
Rain
Actual:
60 | 46 0.19
Average:
74 | 48 0.02
Partly Cloudy
Actual:
63 | 47 T
Average:
73 | 47 0.02
Rain
Actual:
61 | 45 0.03
Average:
73 | 47 0.03
Rain
Actual:
61 | 52 0.07
Average:
72 | 47 0.02
Rain
Actual:
60 | 51 0.01
Average:
72 | 46 0.03
Rain
Actual:
64 | 49 0.04
Average:
71 | 46 0.02
 

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 94 78 62 48 45 42 52 35 17 29.83 29.78 29.72 10 10 10 13 4 16 T  
2 83 77 70 59 52 45 57 44 31 29.87 29.81 29.72 10 10 10 15 4 18 0.01 Rain
3 86 77 68 64 59 56 73 55 37 30.00 29.91 29.84 10 10 10 9 6 - 0.06 Rain
4 92 78 63 61 58 55 84 58 32 29.99 29.91 29.83 10 10 10 9 3 10 0.00  
5 84 74 64 64 61 55 93 71 48 30.03 29.91 29.78 10 10 7 23 6 32 0.32 Rain , Thunderstorm
6 77 70 63 56 52 48 78 61 43 30.11 30.04 29.93 10 10 10 17 4 22 T  
7 81 69 56 54 52 49 86 60 33 30.10 30.03 29.94 10 10 10 13 4 16 0.00  
8 79 70 60 53 50 47 72 52 32 30.04 30.00 29.96 10 10 10 17 6 24 0.00  
9 89 73 57 51 49 46 72 48 24 30.02 29.95 29.88 10 10 10 9 3 12 0.00  
10 93 76 58 52 47 40 72 44 16 30.01 29.94 29.87 10 10 10 9 3 14 0.00  
11 99 80 60 51 45 40 64 39 13 30.02 29.94 29.86 10 10 10 9 3 13 0.00  
12 97 80 63 49 46 41 45 31 16 29.95 29.87 29.80 10 10 10 13 4 18 0.00  
13 96 81 66 52 49 46 52 36 19 29.83 29.76 29.69 10 10 10 13 5 17 0.00  
14 99 82 65 53 47 41 56 35 14 29.85 29.77 29.70 10 10 10 16 5 22 0.00  
15 98 83 67 57 48 43 54 36 17 29.76 29.68 29.54 10 10 6 21 7 28 0.03 Thunderstorm
16 81 71 61 61 53 47 84 57 30 29.87 29.81 29.74 10 10 7 18 5 23 T Rain , Thunderstorm
17 71 63 54 54 50 46 86 65 44 29.82 29.75 29.66 10 9 2 28 6 36 0.31 Rain , Thunderstorm
18 69 59 49 53 45 39 86 62 37 30.09 29.97 29.81 10 10 9 13 4 17 0.04 Rain
19 77 62 47 47 42 37 93 59 24 30.15 30.04 29.90 10 10 10 10 6 16 0.00  
20 89 70 50 43 39 33 71 43 14 29.89 29.69 29.49 10 10 9 15 7 18 T  
21 71 64 56 47 44 37 62 47 31 29.72 29.65 29.56 10 10 10 18 6 23 T Rain
22 71 63 54 52 46 40 86 60 33 29.76 29.71 29.66 10 10 9 18 4 25 0.09 Rain
23 69 60 51 52 45 38 93 62 31 29.94 29.90 29.79 10 10 10 10 4 12 0.01  
24 61 56 50 52 50 46 100 80 60 29.92 29.85 29.78 10 10 7 12 2 13 0.36 Rain
25 60 53 46 49 45 42 93 73 53 29.85 29.80 29.78 10 10 6 15 4 20 0.19 Rain
26 63 55 47 49 43 36 93 65 36 30.04 29.96 29.86 10 10 10 14 4 17 T  
27 61 53 45 45 43 38 89 66 42 30.07 30.02 29.94 10 10 10 17 5 21 0.03 Rain
28 61 57 52 52 49 44 83 74 64 29.93 29.78 29.50 10 10 10 29 8 37 0.07 Rain
29 60 56 51 49 43 40 77 62 47 29.73 29.67 29.51 10 10 10 25 11 36 0.01 Rain
30 64 57 49 47 39 34 77 57 36 29.96 29.79 29.50 10 10 10 29 11 36 0.04 Rain