Boise, ID

6:23 PM MDT on October 23, 2017 (GMT -0600)
Boise Air Term

Weather History for KBOI - September, 2012

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 95 °F 84 °F 67 °F
Mean Temperature 80 °F 69 °F 60 °F
Min Temperature 67 °F 54 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 5 1 0 17
Cooling Degree Days (base 65) 15 4 0 134
Growing Degree Days (base 50) 28 18 9 550
Dew Point  
Dew Point 52 °F 34 °F 15 °F
Precipitation  
Precipitation 0.04 in 0.00 in 0.00 in 0.05 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 20 mph 6 mph 0 mph
Gust Wind 26 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.36 in 30.01 in 29.70 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 11, 2012 Rise Set
Actual Time 7:20 AM MDT 8:01 PM MDT
Civil Twilight 6:51 AM MDT 8:30 PM MDT
Nautical Twilight 6:17 AM MDT 9:04 PM MDT
Astronomical Twilight 5:41 AM MDT 9:39 PM MDT
Moon 2:35 AM MDT (9/11) 5:20 PM MDT (9/11)
Length of Visible Light 13h 38m
Length of Day
12h 40m
Waning Crescent, 21% of the Moon is Illuminated
Sep 11
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Daily Weather History & Observations

2012 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 85 71 57 45 34 24 40 26 12 29.97 29.86 29.70 10 10 10 17 7 22 0.00  
2 86 69 51 35 26 18 43 26 9 30.09 30.01 29.93 10 9 4 13 5 15 0.00  
3 88 71 53 37 26 21 29 20 11 30.05 29.97 29.88 10 10 10 12 5 15 0.00  
4 86 70 53 38 33 25 54 34 14 30.08 30.01 29.94 10 10 10 16 6 23 0.00  
5 91 73 55 41 34 29 40 26 11 30.03 29.93 29.79 10 10 10 10 5 13 0.00  
6 85 72 58 40 35 31 46 31 15 30.00 29.93 29.80 10 10 8 9 4 13 0.00  
7 88 72 55 41 36 30 43 30 16 30.18 30.11 30.01 10 10 10 15 6 20 0.00  
8 95 77 59 33 29 27 29 20 10 30.15 30.04 29.87 10 10 10 17 7 21 0.00  
9 93 80 67 44 36 28 34 25 15 29.97 29.81 29.70 10 10 10 17 7 23 0.01 Rain , Thunderstorm
10 80 66 52 40 34 28 51 34 16 30.03 29.89 29.75 10 10 7 16 7 22 0.00  
11 72 60 47 40 30 20 56 35 14 30.12 30.06 29.93 10 10 10 18 10 24 0.00  
12 78 61 44 29 25 15 49 29 9 30.29 30.22 30.11 10 9 4 18 6 24 0.00  
13 86 68 50 32 24 15 35 22 8 30.36 30.26 30.17 10 9 7 15 7 18 0.00  
14 90 72 53 38 27 23 30 21 11 30.19 30.09 29.97 10 9 7 15 7 18 0.00  
15 91 75 58 36 28 21 27 20 12 30.08 30.00 29.91 10 10 10 15 6 21 0.00  
16 86 70 53 40 35 30 54 34 14 30.05 30.00 29.94 10 8 5 20 7 25 0.00  
17 82 66 49 37 32 25 52 33 13 30.14 30.07 30.02 10 7 3 15 4 18 0.00  
18 86 71 55 31 28 23 38 24 10 30.14 30.05 29.99 10 8 5 13 5 16 0.00  
19 84 69 53 35 30 26 35 26 16 30.13 30.06 30.03 10 8 5 12 5 15 0.00  
20 78 67 56 40 31 27 40 29 18 30.16 30.07 30.02 7 5 3 12 5 15 0.00  
21 79 66 53 42 34 30 47 33 19 30.10 30.02 29.96 5 4 3 14 5 17 0.00  
22 79 65 51 45 37 29 48 35 21 30.01 29.96 29.90 4 3 2 17 5 24 0.00  
23 67 60 52 52 44 37 89 63 37 30.08 30.00 29.88 9 5 2 18 5 24 0.04 Rain
24 76 62 47 52 46 40 93 61 29 30.09 30.02 29.94 10 8 3 14 4 17 0.00  
25 79 68 56 47 45 42 61 46 30 30.00 29.92 29.88 10 9 7 9 3 - 0.00  
26 82 70 57 48 45 38 67 45 23 30.06 29.97 29.91 10 9 7 13 6 15 0.00  
27 85 69 53 46 38 35 54 37 20 30.07 29.99 29.93 10 10 8 10 5 13 0.00  
28 82 69 56 46 37 33 55 38 20 30.00 29.94 29.89 10 10 6 20 6 26 0.00  
29 84 70 55 43 38 33 51 34 17 30.09 30.03 29.95 10 10 7 12 4 15 0.00  
30 82 68 54 44 35 28 43 29 15 30.23 30.15 30.07 10 9 6 17 7 20 0.00