Weather History for Lewistown, MT

Change the Weather History Date:

Month of December, 2010

  Max Avg Min Sum
Temperature  
Max Temperature 45 °F 32 °F 4 °F
Mean Temperature 37 °F 22 °F -4 °F
Min Temperature 31 °F 12 °F -13 °F
Degree Days  
Heating Degree Days (base 65) 69 43 28 1326
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 34 °F 15 °F -15 °F
Precipitation  
Precipitation 0.32 in 0.03 in 0.00 in 0.72 in
Snowdepth 10.0 in 4.8 in 2.0 in -
Wind  
Wind 37 mph 9 mph 0 mph
Gust Wind 43 mph 30 mph 21 mph
Sea Level Pressure  
Sea Level Pressure 30.53 in 29.99 in 29.08 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

Dec. 04, 2010 Rise Set
Actual Time 7:46 AM MST 4:29 PM MST
Civil Twilight 7:11 AM MST 5:04 PM MST
Nautical Twilight 6:33 AM MST 5:42 PM MST
Astronomical Twilight 5:56 AM MST 6:19 PM MST
Moon 6:49 AM MST (12/4) 3:31 PM MST (12/4)
Length of Visible Light 9h 52m
Length of Day
8h 42m
Waning Crescent, 1% of the Moon is Illuminated
Dec 4
Waning Crescent
Dec 5
New
Dec 13
First Quarter
Dec 21
Full
Dec 27
Last Quarter

Weather History Calendar

Precipitation Actual month total 0.72 Normal Month Total: 0.83
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
39 | 21 0.00
Average:
37 | 15 0.02
Snow
Actual:
42 | 18 0.04
Average:
37 | 15 0.02
Snow
Actual:
32 | 7 0.11
Average:
36 | 15 0.02
Clear
Actual:
22 | 3 0.00
Average:
36 | 15 0.02
Clear
Actual:
30 | -1 0.00
Average:
36 | 14 0.02
Clear
Actual:
39 | 12 0.00
Average:
36 | 14 0.02
Clear
Actual:
40 | 13 0.00
Average:
36 | 14 0.02
Clear
Actual:
45 | 19 0.00
Average:
35 | 14 0.02
Scattered Clouds
Actual:
41 | 27 0.00
Average:
35 | 14 0.02
Snow
Actual:
38 | 7 T
Average:
35 | 13 0.02
Partly Cloudy
Actual:
31 | 8 0.00
Average:
35 | 13 0.03
Snow
Actual:
42 | 23 0.12
Average:
35 | 13 0.03
Scattered Clouds
Actual:
43 | 31 T
Average:
35 | 13 0.03
Rain
Actual:
44 | 29 0.01
Average:
34 | 13 0.03
Clear
Actual:
35 | 19 0.00
Average:
34 | 13 0.03
Scattered Clouds
Actual:
30 | 11 0.00
Average:
34 | 12 0.03
Snow
Actual:
19 | 6 T
Average:
34 | 12 0.03
Snow
Actual:
15 | 9 T
Average:
34 | 12 0.03
Snow
Actual:
14 | 4 T
Average:
34 | 12 0.03
Snow
Actual:
13 | 0 0.08
Average:
33 | 12 0.03
Clear
Actual:
28 | 5 0.00
Average:
33 | 12 0.03
Clear
Actual:
32 | 8 0.00
Average:
33 | 12 0.03
Scattered Clouds
Actual:
32 | 11 0.00
Average:
33 | 11 0.03
Clear
Actual:
39 | 11 0.00
Average:
33 | 11 0.03
Clear
Actual:
45 | 22 0.00
Average:
33 | 11 0.03
Scattered Clouds
Actual:
45 | 24 0.00
Average:
33 | 11 0.03
Clear
Actual:
35 | 18 0.00
Average:
33 | 11 0.03
Scattered Clouds
Actual:
38 | 20 0.00
Average:
32 | 11 0.03
Snow
Actual:
35 | 4 0.32
Average:
32 | 11 0.03
Snow
Actual:
4 | -9 0.03
Average:
32 | 11 0.03
Snow
Actual:
5 | -13 0.01
Average:
32 | 11 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

2010 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 39 30 21 29 25 19 82 73 63 30.07 30.00 29.94 10 10 10 28 11 32 0.00  
2 42 30 18 34 28 18 100 80 59 30.08 29.92 29.78 10 10 4 17 5 18 0.04 Rain , Snow
3 32 20 7 32 24 7 100 88 75 30.46 30.04 29.77 10 5 0 16 8 20 0.11 Fog , Snow
4 22 13 3 13 7 2 96 88 80 30.53 30.48 30.43 10 10 10 12 5 13 0.00  
5 30 15 -1 8 4 -1 96 77 57 30.51 30.47 30.40 10 10 10 12 6 12 0.00  
6 39 26 12 23 16 6 92 73 54 30.37 30.25 30.14 10 10 10 12 5 13 0.00  
7 40 27 13 25 20 15 92 84 75 30.37 30.30 30.17 10 10 10 13 4 14 0.00  
8 45 32 19 29 26 16 75 65 55 30.18 29.91 29.82 10 10 10 35 18 41 0.00  
9 41 34 27 27 24 21 81 68 54 29.97 29.88 29.77 10 10 10 33 16 38 0.00  
10 38 23 7 26 12 3 100 80 59 30.28 29.87 29.58 10 6 0 32 13 40 T Fog , Snow
11 31 20 8 21 15 5 91 75 58 30.38 30.34 30.28 10 10 9 12 5 13 0.00  
12 42 33 23 32 27 16 100 84 67 30.23 30.03 29.89 10 6 1 28 14 30 0.12 Rain , Snow
13 43 37 31 32 31 26 82 76 70 29.93 29.87 29.83 10 10 10 25 16 31 T  
14 44 37 29 31 27 19 82 69 56 29.80 29.55 29.37 10 10 10 29 11 35 0.01 Rain
15 35 27 19 19 16 13 77 62 47 29.98 29.79 29.59 10 10 10 23 13 29 0.00  
16 30 21 11 16 12 8 88 71 53 30.28 30.17 30.01 10 10 10 13 4 13 0.00  
17 19 13 6 14 8 3 96 87 77 30.33 30.20 30.04 10 5 0 10 3 13 T Fog , Snow
18 15 12 9 10 9 6 92 84 76 30.15 29.91 29.72 10 8 2 12 5 14 T Snow
19 14 9 4 10 7 1 100 88 76 29.90 29.66 29.38 10 6 0 18 6 23 T Fog , Snow
20 13 7 0 7 4 1 96 83 70 30.02 29.64 29.38 10 4 0 16 7 21 0.08 Fog , Snow
21 28 17 5 19 11 5 92 73 53 30.21 30.13 30.02 10 10 10 12 6 12 0.00  
22 32 20 8 18 13 2 84 74 63 30.17 30.08 29.99 10 10 10 13 4 14 0.00  
23 32 22 11 23 17 12 100 85 69 30.31 30.16 29.97 10 10 10 10 4 12 0.00  
24 39 25 11 20 15 11 88 63 37 30.39 30.32 30.24 10 10 10 14 8 18 0.00  
25 45 34 22 24 18 13 68 57 45 30.22 30.05 29.82 10 10 10 12 6 13 0.00  
26 45 35 24 28 22 13 75 58 40 29.82 29.74 29.68 10 10 10 33 13 37 0.00  
27 35 27 18 24 16 11 69 62 54 29.99 29.93 29.83 10 10 10 37 21 43 0.00  
28 38 29 20 29 23 13 75 67 58 29.91 29.60 29.34 10 10 10 31 19 37 0.00  
29 35 20 4 31 17 0 100 88 75 29.79 29.28 29.08 10 2 0 22 8 24 0.32 Fog , Snow
30 4 -2 -9 1 -5 -12 95 87 79 30.25 29.90 29.62 10 3 1 13 9 15 0.03 Snow
31 5 -4 -13 -4 -9 -15 95 85 75 30.27 30.11 29.81 10 7 2 9 3 10 0.01 Snow