Weather History for Bozeman, MT

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 90 °F 73 °F 45 °F
Mean Temperature 71 °F 59 °F 41 °F
Min Temperature 57 °F 44 °F 31 °F
Degree Days  
Heating Degree Days (base 65) 24 7 0 207
Cooling Degree Days (base 65) 6 1 0 23
Growing Degree Days (base 50) 20 10 0 293
Dew Point  
Dew Point 60 °F 43 °F 24 °F
Precipitation  
Precipitation 0.49 in 0.09 in 0.00 in 2.47 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 38 mph 5 mph 0 mph
Gust Wind 48 mph 28 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.25 in 29.92 in 29.50 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 25, 2013 Rise Set
Actual Time 7:15 AM MDT 7:15 PM MDT
Civil Twilight 6:46 AM MDT 7:45 PM MDT
Nautical Twilight 6:11 AM MDT 8:20 PM MDT
Astronomical Twilight 5:35 AM MDT 8:55 PM MDT
Moon 11:09 PM MDT (9/25) 1:40 PM MDT (9/25)
Length of Visible Light 12h 59m
Length of Day
11h 59m
Waning Gibbous, 63% of the Moon is Illuminated
Sep 25
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Weather History Calendar

Precipitation Actual month total 2.47 Normal Month Total: 1.11
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear
Actual:
90 | 48 0.00
Average:
82 | 45 0.03
Clear
Actual:
83 | 46 0.00
Average:
82 | 45 0.04
Thunderstorm
Actual:
87 | 49 0.05
Average:
81 | 45 0.03
Scattered Clouds
Actual:
86 | 55 0.00
Average:
81 | 44 0.04
Thunderstorm
Actual:
85 | 51 0.15
Average:
80 | 44 0.03
Rain
Actual:
90 | 50 0.01
Average:
80 | 44 0.04
Scattered Clouds
Actual:
82 | 51 0.00
Average:
79 | 43 0.03
Thunderstorm
Actual:
81 | 49 0.03
Average:
79 | 43 0.03
Partly Cloudy
Actual:
75 | 47 T
Average:
78 | 43 0.04
Clear
Actual:
81 | 40 0.00
Average:
78 | 42 0.03
Clear
Actual:
84 | 40 0.00
Average:
77 | 42 0.04
Scattered Clouds
Actual:
83 | 46 0.00
Average:
77 | 42 0.03
Scattered Clouds
Actual:
82 | 45 T
Average:
76 | 41 0.04
Rain
Actual:
73 | 57 0.10
Average:
76 | 41 0.03
Scattered Clouds
Actual:
79 | 51 0.00
Average:
75 | 41 0.04
Thunderstorm
Actual:
83 | 47 0.10
Average:
75 | 40 0.04
Thunderstorm
Actual:
69 | 48 0.49
Average:
74 | 40 0.03
Thunderstorm
Actual:
60 | 45 0.30
Average:
74 | 40 0.04
Partly Cloudy
Actual:
63 | 40 T
Average:
73 | 39 0.04
Clear
Actual:
77 | 33 0.00
Average:
73 | 39 0.04
Clear
Actual:
83 | 37 0.00
Average:
72 | 39 0.04
Rain
Actual:
71 | 47 0.16
Average:
72 | 38 0.04
Partly Cloudy
Actual:
65 | 39 0.00
Average:
71 | 38 0.04
Thunderstorm
Actual:
59 | 37 0.13
Average:
71 | 38 0.05
Rain
Actual:
51 | 39 0.16
Average:
71 | 37 0.03
Rain
Actual:
45 | 37 0.07
Average:
70 | 37 0.04
Partly Cloudy
Actual:
50 | 31 T
Average:
70 | 37 0.04
Partly Cloudy
Actual:
60 | 43 0.00
Average:
69 | 36 0.04
Rain
Actual:
64 | 43 0.38
Average:
69 | 36 0.04
Rain
Actual:
56 | 32 0.34
Average:
68 | 36 0.04
 

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 90 69 48 42 38 32 66 40 13 30.06 29.98 29.88 10 10 10 12 3 14 0.00  
2 83 65 46 50 42 37 76 49 21 29.96 29.91 29.87 10 10 10 14 3 16 0.00  
3 87 68 49 59 49 40 86 53 19 30.14 30.04 29.95 10 10 7 30 5 39 0.05 Rain , Thunderstorm
4 86 71 55 59 55 50 100 66 32 30.19 30.08 30.01 10 10 6 13 4 14 0.00  
5 85 68 51 60 53 46 89 60 31 30.18 30.04 29.93 10 10 4 36 4 46 0.15 Rain , Thunderstorm
6 90 70 50 59 52 45 96 59 22 30.18 29.98 29.86 10 10 10 15 4 21 0.01 Rain
7 82 67 51 57 52 43 93 64 35 30.17 30.00 29.92 10 10 10 21 4 25 0.00  
8 81 65 49 51 47 40 86 56 25 30.04 29.95 29.80 10 10 4 21 4 24 0.03 Rain , Thunderstorm
9 75 61 47 50 45 41 86 60 33 30.06 29.99 29.94 10 10 10 12 5 17 T  
10 81 61 40 44 40 31 92 54 16 30.14 30.08 30.01 10 10 10 13 5 15 0.00  
11 84 62 40 44 39 36 76 47 18 30.25 30.17 30.12 10 10 10 22 5 28 0.00  
12 83 65 46 47 44 43 83 56 29 30.22 30.11 29.98 10 10 10 14 5 17 0.00  
13 82 64 45 52 46 43 80 54 28 29.98 29.88 29.77 10 10 10 14 5 17 T  
14 73 65 57 56 53 47 93 71 49 30.05 29.95 29.83 10 10 10 20 5 23 0.10 Rain
15 79 65 51 52 49 46 83 61 38 30.08 29.99 29.91 10 10 10 23 7 29 0.00  
16 83 65 47 54 50 45 93 60 26 29.98 29.86 29.75 10 9 1 38 5 48 0.10 Rain , Thunderstorm
17 69 59 48 53 49 46 93 72 51 29.93 29.78 29.66 10 9 1 26 7 36 0.49 Rain , Thunderstorm
18 60 53 45 47 43 37 100 73 46 30.09 29.92 29.78 10 9 3 20 7 25 0.30 Rain , Thunderstorm
19 63 52 40 41 37 33 82 58 34 30.21 30.14 30.09 10 10 9 12 4 17 T  
20 77 55 33 41 34 25 89 53 16 30.12 29.96 29.78 10 10 10 13 3 15 0.00  
21 83 60 37 41 34 24 76 45 13 29.80 29.65 29.52 10 10 10 22 6 30 0.00  
22 71 59 47 49 41 35 86 57 28 29.81 29.61 29.50 10 10 5 28 7 35 0.16 Rain
23 65 52 39 44 38 30 96 62 28 29.95 29.85 29.74 10 10 10 22 6 26 0.00  
24 59 48 37 46 41 35 92 74 55 29.96 29.83 29.68 10 9 2 31 5 37 0.13 Rain , Thunderstorm
25 51 45 39 41 39 35 93 78 63 29.78 29.71 29.62 10 8 0 29 4 38 0.16 Fog , Rain
26 45 41 37 37 35 32 92 79 65 30.04 29.90 29.76 10 10 7 12 3 13 0.07 Rain
27 50 41 31 33 30 27 92 67 42 30.09 30.02 29.97 10 10 10 18 4 25 T  
28 60 52 43 38 34 30 65 51 36 29.97 29.91 29.82 10 10 10 23 7 29 0.00  
29 64 54 43 44 37 32 89 60 30 29.81 29.70 29.57 10 9 5 33 9 46 0.38 Rain
30 56 44 32 43 37 25 92 62 32 30.02 29.75 29.54 10 9 2 28 9 35 0.34 Rain