Weather History for Boise, ID

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 94 °F 78 °F 54 °F
Mean Temperature 78 °F 67 °F 49 °F
Min Temperature 65 °F 55 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 16 3 0 91
Cooling Degree Days (base 65) 13 5 0 148
Growing Degree Days (base 50) 28 17 0 505
Dew Point  
Dew Point 66 °F 45 °F 20 °F
Precipitation  
Precipitation 0.49 in 0.08 in 0.00 in 1.75 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 41 mph 8 mph 0 mph
Gust Wind 51 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.16 in 29.87 in 29.52 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 01, 2013 Rise Set
Actual Time 7:09 AM MDT 8:19 PM MDT
Civil Twilight 6:39 AM MDT 8:49 PM MDT
Nautical Twilight 6:04 AM MDT 9:24 PM MDT
Astronomical Twilight 5:26 AM MDT 10:01 PM MDT
Moon 3:30 AM MDT (9/1) 6:03 PM MDT (9/1)
Length of Visible Light 14h 09m
Length of Day
13h 10m
Waning Crescent, 13% of the Moon is Illuminated
Sep 1
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.75 Normal Month Total: 0.58
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear
Actual:
94 | 62 0.00
Average:
85 | 56 0.01
Rain
Actual:
88 | 65 T
Average:
84 | 56 0.02
Thunderstorm
Actual:
85 | 64 0.49
Average:
84 | 55 0.01
Thunderstorm
Actual:
93 | 63 0.23
Average:
84 | 55 0.01
Thunderstorm
Actual:
86 | 63 0.07
Average:
83 | 55 0.02
Scattered Clouds
Actual:
78 | 61 0.00
Average:
83 | 54 0.02
Clear
Actual:
82 | 53 0.00
Average:
82 | 54 0.01
Clear
Actual:
83 | 58 0.00
Average:
82 | 54 0.02
Clear
Actual:
85 | 54 0.00
Average:
82 | 53 0.01
Clear
Actual:
86 | 58 0.00
Average:
81 | 53 0.02
Clear
Actual:
89 | 60 0.00
Average:
81 | 53 0.02
Rain
Actual:
85 | 63 0.05
Average:
80 | 52 0.02
Rain
Actual:
82 | 63 0.01
Average:
80 | 52 0.02
Thunderstorm
Actual:
87 | 62 T
Average:
80 | 52 0.02
Thunderstorm
Actual:
90 | 64 T
Average:
79 | 51 0.02
Clear
Actual:
86 | 61 T
Average:
79 | 51 0.02
Clear
Actual:
76 | 56 T
Average:
78 | 51 0.02
Rain
Actual:
67 | 50 T
Average:
78 | 50 0.02
Clear
Actual:
74 | 46 0.00
Average:
77 | 50 0.02
Clear
Actual:
88 | 51 0.00
Average:
77 | 50 0.03
Clear
Actual:
73 | 56 0.00
Average:
77 | 49 0.02
Partly Cloudy
Actual:
68 | 53 0.00
Average:
76 | 49 0.02
Scattered Clouds
Actual:
73 | 50 T
Average:
76 | 48 0.02
Rain
Actual:
59 | 50 0.23
Average:
75 | 48 0.02
Rain
Actual:
54 | 44 0.30
Average:
75 | 48 0.02
Thunderstorm
Actual:
59 | 41 0.18
Average:
74 | 47 0.02
Partly Cloudy
Actual:
61 | 39 0.00
Average:
74 | 47 0.03
Rain
Actual:
72 | 53 0.01
Average:
74 | 47 0.02
Rain
Actual:
69 | 49 0.05
Average:
73 | 46 0.03
Rain
Actual:
64 | 48 0.13
Average:
73 | 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 46 36 30 39 25 11 29.88 29.79 29.72 10 10 8 15 6 18 0.00  
2 88 77 65 61 51 41 76 54 31 29.92 29.83 29.74 10 10 10 24 8 31 T Rain
3 85 75 64 65 61 55 93 65 37 30.12 29.98 29.89 10 9 1 22 9 26 0.49 Rain , Thunderstorm
4 93 78 63 64 60 50 87 56 25 30.06 29.96 29.86 10 9 2 23 9 31 0.23 Rain , Thunderstorm
5 86 75 63 66 61 55 100 69 37 30.01 29.91 29.79 10 9 3 41 6 51 0.07 Rain , Thunderstorm
6 78 70 61 65 50 40 100 64 27 30.14 30.01 29.89 10 9 5 20 8 24 0.00  
7 82 68 53 49 46 42 83 54 24 30.07 30.00 29.91 10 10 10 12 4 16 0.00  
8 83 71 58 50 44 39 55 39 23 29.97 29.91 29.85 10 10 10 22 10 26 0.00  
9 85 70 54 50 47 42 77 51 24 29.97 29.90 29.85 10 10 10 23 8 26 0.00  
10 86 72 58 48 46 40 64 42 20 29.96 29.91 29.87 10 10 10 13 5 16 0.00  
11 89 75 60 51 47 44 60 41 21 30.06 29.94 29.87 10 10 2 13 5 16 0.00  
12 85 74 63 63 56 49 87 62 36 30.01 29.93 29.85 10 10 10 28 8 37 0.05 Rain
13 82 73 63 62 59 55 93 68 42 29.93 29.86 29.76 10 10 8 17 5 21 0.01 Rain
14 87 75 62 59 55 51 84 57 29 29.86 29.80 29.76 10 10 10 17 5 21 T Thunderstorm
15 90 77 64 56 50 47 73 48 23 29.84 29.76 29.65 10 10 10 26 14 37 T Rain , Thunderstorm
16 86 74 61 54 45 33 63 40 16 29.85 29.75 29.67 10 10 10 16 7 18 T  
17 76 66 56 49 46 42 72 53 33 29.82 29.67 29.60 10 10 10 29 8 37 T  
18 67 59 50 44 38 32 77 53 29 30.09 29.99 29.83 10 10 10 18 8 24 T Rain
19 74 60 46 36 31 23 65 41 16 30.16 30.07 29.96 10 10 10 17 8 23 0.00  
20 88 70 51 33 27 20 45 27 9 29.94 29.76 29.52 10 10 10 28 15 37 0.00  
21 73 65 56 43 35 27 55 37 19 29.68 29.63 29.54 10 10 10 35 11 43 0.00  
22 68 61 53 45 41 36 71 52 32 29.83 29.74 29.64 10 10 10 20 7 25 0.00  
23 73 62 50 42 39 37 68 48 27 30.00 29.92 29.84 10 10 10 10 3 17 T  
24 59 55 50 52 44 36 93 68 43 29.86 29.82 29.75 10 10 5 20 5 22 0.23 Rain
25 54 49 44 46 43 40 93 76 59 29.78 29.74 29.68 10 9 2 21 8 25 0.30 Rain
26 59 50 41 45 44 42 93 75 57 29.96 29.82 29.77 10 10 8 21 7 28 0.18 Rain , Thunderstorm
27 61 50 39 41 37 31 93 65 36 30.11 30.07 29.98 10 10 9 17 8 24 0.00  
28 72 63 53 46 36 32 54 40 26 30.05 29.95 29.78 10 10 10 23 13 30 0.01 Rain
29 69 59 49 50 44 33 93 60 26 29.84 29.77 29.71 10 9 4 18 8 25 0.05 Rain
30 64 56 48 52 44 32 100 68 36 29.98 29.85 29.69 10 10 5 30 8 33 0.13 Rain