Weather History for Lewistown, MT

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Month of April, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 83 °F 56 °F 31 °F
Mean Temperature 64 °F 44 °F 26 °F
Min Temperature 50 °F 32 °F 14 °F
Degree Days  
Heating Degree Days (base 65) 39 21 1 628
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 12 2 0 49
Dew Point  
Dew Point 48 °F 29 °F 9 °F
Precipitation  
Precipitation 0.88 in 0.12 in 0.00 in 3.28 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 37 mph 10 mph 0 mph
Gust Wind 46 mph 26 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 29.91 in 29.28 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Apr. 12, 2012 Rise Set
Actual Time 6:34 AM MDT 8:03 PM MDT
Civil Twilight 6:02 AM MDT 8:35 PM MDT
Nautical Twilight 5:24 AM MDT 9:13 PM MDT
Astronomical Twilight 4:43 AM MDT 9:55 PM MDT
Moon 2:06 AM MDT (4/12) 11:20 AM MDT (4/12)
Length of Visible Light 14h 32m
Length of Day
13h 28m
Waning Gibbous, 58% of the Moon is Illuminated
Apr 12
Waning Gibbous
Apr 13
Last Quarter
Apr 21
New
Apr 29
First Quarter
May 5
Full

Weather History Calendar

Precipitation Actual month total 3.28 Normal Month Total: 1.41
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
55 | 37 0.00
Average:
49 | 26 0.04
Scattered Clouds
Actual:
49 | 29 0.00
Average:
49 | 26 0.04
Clear
Actual:
62 | 22 0.00
Average:
50 | 27 0.04
Scattered Clouds
Actual:
70 | 31 0.00
Average:
50 | 27 0.04
Snow
Actual:
39 | 30 0.07
Average:
50 | 27 0.05
Snow
Actual:
31 | 23 0.74
Average:
51 | 27 0.04
Scattered Clouds
Actual:
37 | 14 0.00
Average:
51 | 28 0.04
Scattered Clouds
Actual:
44 | 19 0.00
Average:
51 | 28 0.04
Clear
Actual:
50 | 27 0.00
Average:
52 | 28 0.05
Clear
Actual:
57 | 29 0.00
Average:
52 | 28 0.04
Clear
Actual:
69 | 35 0.00
Average:
52 | 28 0.04
Rain
Actual:
52 | 37 0.53
Average:
53 | 28 0.04
Clear
Actual:
58 | 34 0.00
Average:
53 | 29 0.04
Scattered Clouds
Actual:
57 | 27 0.00
Average:
53 | 29 0.05
Snow
Actual:
38 | 27 0.07
Average:
54 | 29 0.04
Rain
Actual:
53 | 22 0.06
Average:
54 | 29 0.05
Scattered Clouds
Actual:
54 | 36 0.00
Average:
54 | 29 0.04
Rain
Actual:
49 | 31 0.18
Average:
54 | 30 0.04
Rain
Actual:
51 | 29 0.02
Average:
55 | 30 0.05
Partly Cloudy
Actual:
66 | 31 0.00
Average:
55 | 30 0.05
Partly Cloudy
Actual:
60 | 36 0.00
Average:
55 | 30 0.05
Clear
Actual:
76 | 35 0.00
Average:
56 | 31 0.05
Rain
Actual:
83 | 44 T
Average:
56 | 31 0.05
Scattered Clouds
Actual:
76 | 46 T
Average:
56 | 31 0.05
Scattered Clouds
Actual:
73 | 42 0.00
Average:
57 | 31 0.06
Rain
Actual:
69 | 50 T
Average:
57 | 32 0.05
Snow
Actual:
49 | 32 0.88
Average:
57 | 32 0.06
Snow
Actual:
37 | 32 0.61
Average:
58 | 32 0.06
Rain
Actual:
54 | 33 0.01
Average:
58 | 32 0.06
Rain
Actual:
57 | 33 0.11
Average:
58 | 33 0.06
 

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

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Apr high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 55 46 37 37 25 15 82 53 24 29.91 29.57 29.28 10 10 10 29 16 38 0.00  
2 49 39 29 18 14 9 58 39 19 30.26 30.17 29.96 10 10 10 18 7 29 0.00  
3 62 42 22 24 17 12 74 46 17 30.22 30.04 29.82 10 10 10 28 8 33 0.00  
4 70 51 31 30 24 19 64 40 15 29.78 29.64 29.50 10 10 10 25 10 30 0.00  
5 39 35 30 30 27 19 100 76 52 30.00 29.93 29.79 10 7 0 14 7 17 0.07 Fog , Snow
6 31 27 23 31 28 21 100 93 85 30.22 29.94 29.82 10 2 0 22 9 26 0.74 Fog , Snow
7 37 26 14 25 19 13 96 70 44 30.35 30.30 30.13 10 10 10 21 9 24 0.00  
8 44 32 19 23 17 12 75 54 33 30.45 30.40 30.35 10 10 10 13 5 14 0.00  
9 50 39 27 26 23 19 75 57 39 30.40 30.31 30.20 10 10 10 18 9 22 0.00  
10 57 43 29 26 22 18 63 47 30 30.20 30.09 29.96 10 10 10 24 15 31 0.00  
11 69 52 35 40 31 21 64 47 30 29.95 29.68 29.47 10 10 10 28 13 35 0.00  
12 52 45 37 43 37 30 96 78 59 29.70 29.52 29.35 10 9 4 30 13 37 0.53 Rain
13 58 46 34 29 25 16 70 45 20 29.74 29.70 29.64 10 10 10 20 11 24 0.00  
14 57 42 27 26 23 20 78 52 26 29.83 29.74 29.70 10 10 10 16 6 20 0.00  
15 38 33 27 32 27 22 100 88 75 30.17 30.03 29.87 10 5 0 20 11 24 0.07 Fog , Snow
16 53 38 22 39 27 21 92 62 32 30.16 30.04 29.92 10 10 9 16 6 20 0.06 Rain
17 54 45 36 38 31 26 82 60 38 30.02 29.97 29.91 10 10 10 23 12 30 0.00  
18 49 40 31 39 36 30 100 83 65 29.99 29.90 29.85 10 9 2 26 6 32 0.18 Rain
19 51 40 29 36 30 27 100 73 45 30.10 30.03 29.97 10 10 6 26 6 33 0.02 Rain
20 66 49 31 37 33 27 85 58 31 30.08 29.94 29.84 10 10 10 32 17 40 0.00  
21 60 48 36 35 31 22 79 54 28 30.19 30.13 30.01 10 10 10 14 6 17 0.00  
22 76 56 35 39 34 29 82 51 19 30.17 30.07 29.97 10 10 10 13 5 14 0.00  
23 83 64 44 46 38 31 70 43 16 30.00 29.89 29.75 10 10 5 37 8 46 T Rain
24 76 61 46 43 39 32 76 49 21 29.75 29.70 29.65 10 10 10 29 9 37 T  
25 73 58 42 41 38 34 70 48 26 29.86 29.81 29.73 10 10 10 15 6 18 0.00  
26 69 60 50 48 43 38 63 54 45 29.75 29.55 29.37 10 10 10 24 12 30 T Rain
27 49 41 32 47 37 32 100 93 85 29.93 29.72 29.48 10 6 1 35 20 44 0.88 Rain , Snow
28 37 35 32 34 34 32 100 95 89 30.06 29.97 29.86 10 5 0 35 19 44 0.61 Fog , Rain , Snow
29 54 44 33 37 34 31 100 73 46 30.02 29.94 29.90 10 10 8 24 11 31 0.01 Rain
30 57 45 33 42 35 28 89 65 41 29.87 29.68 29.55 10 10 10 31 12 46 0.11 Rain