Weather History for Lewistown, MT

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Month of February, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 27 °F -6 °F
Mean Temperature 45 °F 17 °F -14 °F
Min Temperature 38 °F 7 °F -23 °F
Degree Days  
Heating Degree Days (base 65) 79 48 20 1335
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 0 0 4
Dew Point  
Dew Point 32 °F 10 °F -26 °F
Precipitation  
Precipitation 0.16 in 0.02 in 0.00 in 0.37 in
Snowdepth 10.0 in 2.7 in 0.0 in -
Wind  
Wind 48 mph 12 mph 0 mph
Gust Wind 58 mph 30 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.94 in 30.00 in 29.21 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Feb. 15, 2011 Rise Set
Actual Time 7:22 AM MST 5:41 PM MST
Civil Twilight 6:51 AM MST 6:13 PM MST
Nautical Twilight 6:15 AM MST 6:49 PM MST
Astronomical Twilight 5:40 AM MST 7:24 PM MST
Moon 2:46 PM MST (2/15) 5:28 AM MST (2/15)
Length of Visible Light 11h 22m
Length of Day
10h 19m
Waxing Gibbous, 91% of the Moon is Illuminated
Feb 15
Waxing Gibbous
Feb 18
Full
Feb 24
Last Quarter
Mar 4
New
Mar 12
First Quarter

Weather History Calendar

Precipitation Actual month total 0.37 Normal Month Total: 0.57
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
10 | -21 0.00
Average:
34 | 12 0.02
Clear
Actual:
30 | -9 0.00
Average:
34 | 12 0.02
Clear
Actual:
40 | 16 0.00
Average:
34 | 12 0.02
Rain
Actual:
42 | 35 T
Average:
34 | 13 0.02
Snow
Actual:
36 | 28 0.16
Average:
34 | 13 0.02
Snow
Actual:
26 | 6 0.03
Average:
35 | 13 0.02
Snow
Actual:
14 | -3 0.02
Average:
35 | 13 0.02
Partly Cloudy
Actual:
1 | -17 T
Average:
35 | 13 0.02
Scattered Clouds
Actual:
22 | -15 0.00
Average:
35 | 14 0.02
Overcast
Actual:
35 | 16 0.00
Average:
35 | 14 0.02
Partly Cloudy
Actual:
41 | 27 0.00
Average:
36 | 14 0.02
Clear
Actual:
45 | 38 0.00
Average:
36 | 14 0.02
Clear
Actual:
46 | 32 0.00
Average:
36 | 14 0.02
Clear
Actual:
48 | 34 0.00
Average:
36 | 15 0.02
Clear
Actual:
57 | 33 0.00
Average:
36 | 15 0.02
Partly Cloudy
Actual:
50 | 33 0.09
Average:
37 | 15 0.02
Snow
Actual:
44 | 19 0.02
Average:
37 | 15 0.02
Snow
Actual:
3 | 0 0.03
Average:
37 | 15 0.02
Snow
Actual:
6 | -9 0.01
Average:
37 | 16 0.02
Snow
Actual:
2 | -6 0.01
Average:
37 | 16 0.02
Partly Cloudy
Actual:
29 | -5 0.00
Average:
38 | 16 0.02
Snow
Actual:
33 | 16 T
Average:
38 | 16 0.02
Snow
Actual:
17 | -7 T
Average:
38 | 16 0.02
Snow
Actual:
0 | -16 T
Average:
38 | 17 0.02
Snow
Actual:
-6 | -23 T
Average:
38 | 17 0.02
Scattered Clouds
Actual:
24 | -17 0.00
Average:
38 | 17 0.02
Partly Cloudy
Actual:
30 | 8 0.00
Average:
39 | 17 0.02
Scattered Clouds
Actual:
37 | 1 0.00
Average:
39 | 18 0.03
 

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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Feb high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 10 -5 -21 -6 -15 -25 86 66 45 30.94 30.80 30.56 10 10 10 10 6 10 0.00  
2 30 11 -9 22 5 -11 82 62 42 30.53 30.42 30.33 10 10 10 14 7 15 0.00  
3 40 28 16 29 22 14 84 72 59 30.35 30.24 30.10 10 10 10 24 9 28 0.00  
4 42 39 35 32 30 28 76 70 64 30.09 29.93 29.77 10 10 10 32 16 45 T Rain
5 36 32 28 31 27 21 100 88 75 30.23 29.99 29.82 10 4 0 26 17 33 0.16 Fog , Snow
6 26 16 6 25 14 3 100 92 83 30.57 30.33 30.10 10 5 1 23 10 31 0.03 Snow
7 14 6 -3 11 7 -5 92 84 76 30.51 30.03 29.75 10 3 0 28 17 36 0.02 Fog , Snow
8 1 -8 -17 -2 -12 -19 92 86 79 30.75 30.60 30.34 10 8 2 10 6 12 T  
9 22 4 -15 12 1 -18 87 75 62 30.58 30.30 30.09 10 10 3 29 13 37 0.00  
10 35 26 16 24 19 10 77 69 61 30.07 30.02 29.97 10 10 10 22 12 29 0.00  
11 41 34 27 28 24 20 75 63 51 30.11 30.01 29.88 10 10 10 40 16 46 0.00  
12 45 42 38 28 25 23 64 55 45 29.91 29.81 29.55 10 10 10 41 27 53 0.00  
13 46 39 32 27 23 20 72 56 40 30.05 29.84 29.54 10 10 10 48 21 58 0.00  
14 48 41 34 27 24 19 59 49 39 29.93 29.73 29.60 10 10 10 29 14 33 0.00  
15 57 45 33 28 26 22 46 36 25 29.67 29.58 29.50 10 10 10 35 16 41 0.00  
16 50 42 33 30 27 23 75 50 25 29.53 29.31 29.21 10 7 1 30 12 36 0.09  
17 44 32 19 27 15 10 68 51 33 29.80 29.55 29.32 10 5 1 16 6 28 0.02 Snow
18 3 2 0 0 -2 -3 91 89 86 30.13 30.00 29.81 10 4 1 10 6 - 0.03 Snow
19 6 -1 -9 0 -5 -12 92 86 79 30.38 30.19 29.93 10 7 2 14 7 17 0.01 Snow
20 2 -2 -6 -2 -6 -8 87 81 75 30.20 30.03 29.85 10 6 2 12 3 14 0.01 Snow
21 29 12 -5 17 7 -7 87 73 58 30.04 29.92 29.76 10 10 10 22 8 26 0.00  
22 33 25 16 22 18 14 100 77 54 29.87 29.71 29.61 10 8 0 28 16 36 T Fog , Snow
23 17 5 -7 14 2 -8 96 86 76 30.35 30.02 29.76 10 4 1 16 8 18 T Snow
24 0 -8 -16 -7 -10 -19 83 74 65 30.46 30.26 30.12 10 5 1 14 8 17 T Snow
25 -6 -14 -23 -12 -19 -26 87 80 72 30.41 30.25 30.08 10 10 9 9 5 12 T Snow
26 24 4 -17 14 2 -21 81 65 49 29.97 29.59 29.32 10 8 2 35 18 41 0.00  
27 30 19 8 16 10 2 80 64 47 29.76 29.69 29.59 10 10 10 31 14 35 0.00  
28 37 19 1 21 12 -2 96 73 50 30.06 29.78 29.70 10 10 8 37 26 46 0.00