Weather History for West Yellowstone, MT

Change the Weather History Date:

Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 82 °F 62 °F 41 °F
Mean Temperature 62 °F 49 °F 36 °F
Min Temperature 50 °F 36 °F 23 °F
Degree Days  
Heating Degree Days (base 65) 30 16 2 465
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 12 3 0 83
Dew Point  
Dew Point 77 °F 44 °F 19 °F
Precipitation  
Precipitation 0.53 in 0.06 in 0.00 in 1.68 in
Snowdepth - - - -
Wind  
Wind 32 mph 4 mph 0 mph
Gust Wind 60 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.41 in 30.11 in 29.64 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 12, 2013 Rise Set
Actual Time 7:00 AM MDT 7:40 PM MDT
Civil Twilight 6:30 AM MDT 8:09 PM MDT
Nautical Twilight 5:55 AM MDT 8:44 PM MDT
Astronomical Twilight 5:19 AM MDT 9:20 PM MDT
Moon 2:47 PM MDT (9/12) No Moon Set
Length of Visible Light 13h 38m
Length of Day
12h 40m
Waxing Crescent, 51% of the Moon is Illuminated
Sep 12
Waxing Crescent
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Weather History Calendar

Precipitation Actual month total 1.68 Average Month Total: 1.48
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Scattered Clouds
Actual:
82 | 32 0.00
Average:
71 | 34 0.04
Rain
Actual:
66 | 37 0.00
Average:
71 | 35 0.02
Rain
Actual:
77 | 41 0.00
Average:
71 | 33 0.02
Partly Cloudy
Actual:
75 | 50 0.00
Average:
72 | 33 0.02
Rain
Actual:
77 | 39 0.00
Average:
71 | 35 0.06
Rain
Actual:
80 | 39 0.01
Average:
71 | 35 0.08
Rain
Actual:
75 | 39 0.09
Average:
71 | 35 0.04
Rain
Actual:
71 | 41 0.14
Average:
68 | 34 0.09
Fog
Actual:
62 | 39 0.00
Average:
70 | 33 0.04
Scattered Clouds
Actual:
73 | 28 0.00
Average:
68 | 33 0.06
Clear
Actual:
77 | 32 0.00
Average:
65 | 32 0.05
Rain
Actual:
57 | 41 0.02
Average:
62 | 31 0.07
Fog
Actual:
71 | 39 0.00
Average:
63 | 29 0.08
Rain
Actual:
59 | 46 0.03
Average:
64 | 28 0.08
Rain
Actual:
66 | 44 0.00
Average:
63 | 28 0.05
Rain
Actual:
73 | 39 0.00
Average:
64 | 30 0.01
Rain
Actual:
57 | 41 0.53
Average:
63 | 30 0.05
Rain
Actual:
46 | 33 0.21
Average:
64 | 28 0.05
Partly Cloudy
Actual:
53 | 32 0.00
Average:
61 | 29 0.07
Clear
Actual:
64 | 23 0.00
Average:
58 | 28 0.05
Scattered Clouds
Actual:
69 | 26 0.00
Average:
60 | 26 0.06
Rain
Actual:
59 | 39 0.12
Average:
61 | 26 0.01
Rain
Actual:
55 | 37 0.00
Average:
62 | 27 0.06
Rain
Actual:
57 | 35 0.07
Average:
63 | 29 0.03
Rain
Actual:
44 | 33 0.04
Average:
62 | 28 0.04
Snow
Actual:
41 | 32 0.00
Average:
60 | 28 0.04
Snow
Actual:
41 | 30 0.03
Average:
61 | 28 0.07
Snow
Actual:
46 | 32 0.00
Average:
60 | 26 0.01
Rain
Actual:
46 | 41 0.19
Average:
62 | 26 0.04
Rain
Actual:
53 | 32 0.20
Average:
62 | 26 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 82 57 32 77 55 32 100 88 81 30.30 30.24 30.15 10 10 10 10 1 16 0.00  
2 66 52 37 63 49 32 100 88 81 30.25 30.22 30.20 10 10 8 16 2 23 0.00 Rain
3 77 59 41 73 55 36 100 85 81 30.38 30.29 30.23 10 10 0 28 3 39 0.00 Fog , Rain
4 75 62 50 72 57 45 89 85 82 30.39 30.34 30.31 10 10 2 17 3 21 0.00  
5 77 58 39 73 53 36 100 86 81 30.36 30.30 30.21 10 10 10 21 2 28 0.00 Rain
6 80 60 39 75 53 36 89 84 81 30.31 30.27 30.22 10 10 5 20 3 32 0.01 Rain
7 75 57 39 72 51 36 89 84 81 30.31 30.28 30.22 10 10 4 21 3 29 0.09 Rain
8 71 56 41 66 47 37 88 84 81 30.24 30.17 30.08 10 9 0 21 3 29 0.14 Rain
9 62 50 39 59 46 34 88 84 81 30.22 30.15 30.11 10 8 0 12 3 - 0.00 Fog
10 73 50 28 68 48 25 88 84 80 30.29 30.23 30.18 10 10 7 9 2 - 0.00  
11 77 54 32 72 52 28 89 85 81 30.38 30.33 30.28 10 10 10 15 4 24 0.00  
12 57 49 41 54 44 37 88 84 81 30.41 30.35 30.25 10 10 3 12 2 - 0.02 Rain
13 71 55 39 66 47 34 88 84 81 30.25 30.13 30.01 10 8 0 12 2 18 0.00 Fog
14 59 52 46 55 48 41 88 84 81 30.20 30.13 30.07 10 10 4 15 3 21 0.03 Rain
15 66 55 44 63 49 39 88 84 81 30.24 30.21 30.16 10 10 10 13 1 26 0.00 Rain
16 73 56 39 68 51 36 88 84 81 30.18 30.13 30.04 10 9 0 18 4 25 0.00 Fog , Rain
17 57 49 41 54 46 37 88 85 81 30.06 29.95 29.83 10 9 3 13 3 23 0.53 Rain
18 46 40 33 41 36 30 87 84 81 30.16 29.98 29.83 10 9 2 22 7 41 0.21 Rain
19 53 42 32 48 35 27 88 85 80 30.28 30.23 30.16 10 10 10 8 2 - 0.00  
20 64 44 23 59 37 19 93 85 80 30.24 30.14 30.03 10 10 10 12 2 18 0.00  
21 69 48 26 64 43 23 88 85 80 30.02 29.91 29.76 10 10 10 18 4 33 0.00  
22 59 49 39 54 43 34 88 84 81 29.88 29.78 29.73 10 10 3 21 6 30 0.12 Rain
23 55 46 37 50 40 32 87 84 81 30.10 30.01 29.88 10 10 7 21 11 30 0.00 Rain
24 57 46 35 54 40 32 88 84 81 30.11 29.98 29.83 10 10 3 24 6 31 0.07 Rain
25 44 38 33 41 34 30 87 85 81 29.81 29.73 29.64 10 9 3 22 4 29 0.04 Rain
26 41 36 32 37 31 28 87 86 81 29.93 29.85 29.76 10 10 2 14 5 17 0.00 Rain , Snow
27 41 36 30 37 31 27 87 84 80 30.07 29.98 29.91 10 8 2 13 5 20 0.03 Rain , Snow
28 46 39 32 41 34 28 87 85 81 30.15 30.10 30.05 10 9 2 24 12 37 0.00 Rain , Snow
29 46 44 41 41 39 37 87 83 81 30.07 29.93 29.85 10 8 3 32 12 45 0.19 Rain
30 53 42 32 48 38 28 87 84 81 30.03 29.84 29.73 10 9 2 32 15 60 0.20 Rain