Weather History for Helena, MT

Change the Weather History Date:

Month of October, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 73 °F 56 °F 28 °F
Mean Temperature 54 °F 43 °F 24 °F
Min Temperature 43 °F 30 °F 17 °F
Degree Days  
Heating Degree Days (base 65) 41 22 11 675
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 0 0 6
Dew Point  
Dew Point 37 °F 27 °F 12 °F
Precipitation  
Precipitation 1.81 in 0.07 in 0.00 in 2.13 in
Snowdepth 2.0 in 0.1 in 0.0 in -
Wind  
Wind 31 mph 5 mph 0 mph
Gust Wind 40 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.58 in 30.17 in 29.72 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

Oct. 12, 2013 Rise Set
Actual Time 7:41 AM MDT 6:46 PM MDT
Civil Twilight 7:11 AM MDT 7:16 PM MDT
Nautical Twilight 6:36 AM MDT 7:51 PM MDT
Astronomical Twilight 6:01 AM MDT 8:26 PM MDT
Moon 3:18 PM MDT (10/12) 12:27 AM MDT (10/12)
Length of Visible Light 12h 04m
Length of Day
11h 04m
First Quarter, 59% of the Moon is Illuminated
Oct 12
First Quarter
Oct 18
Full
Oct 26
Last Quarter
Nov 3
New
Nov 9
First Quarter

Weather History Calendar

Precipitation Actual month total 2.13 Normal Month Total: 0.68
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
59 | 33 0.00
Average:
66 | 38 0.03
Rain
Actual:
55 | 37 0.03
Average:
65 | 37 0.03
Rain
Actual:
41 | 36 0.22
Average:
65 | 37 0.02
Rain
Actual:
51 | 33 0.01
Average:
64 | 36 0.03
Clear
Actual:
64 | 27 0.00
Average:
64 | 36 0.02
Clear
Actual:
69 | 30 0.00
Average:
63 | 36 0.03
Clear
Actual:
73 | 34 0.00
Average:
63 | 35 0.02
Scattered Clouds
Actual:
56 | 33 0.00
Average:
62 | 35 0.03
Scattered Clouds
Actual:
57 | 33 0.00
Average:
62 | 35 0.02
Fog
Actual:
59 | 28 0.00
Average:
62 | 34 0.03
Partly Cloudy
Actual:
56 | 33 0.00
Average:
61 | 34 0.02
Scattered Clouds
Actual:
51 | 28 0.00
Average:
61 | 34 0.02
Partly Cloudy
Actual:
52 | 32 0.00
Average:
60 | 33 0.02
Rain
Actual:
49 | 32 0.01
Average:
60 | 33 0.03
Clear
Actual:
56 | 23 0.00
Average:
59 | 33 0.02
Rain
Actual:
44 | 28 0.03
Average:
59 | 32 0.02
Rain
Actual:
47 | 32 0.02
Average:
58 | 32 0.03
Clear
Actual:
58 | 25 0.00
Average:
58 | 32 0.02
Partly Cloudy
Actual:
62 | 43 0.00
Average:
57 | 32 0.02
Partly Cloudy
Actual:
58 | 36 0.00
Average:
57 | 31 0.02
Clear
Actual:
64 | 32 0.00
Average:
57 | 31 0.02
Clear
Actual:
68 | 31 0.00
Average:
56 | 31 0.02
Clear
Actual:
63 | 30 0.00
Average:
56 | 30 0.02
Clear
Actual:
61 | 31 0.00
Average:
55 | 30 0.02
Clear
Actual:
66 | 28 0.00
Average:
55 | 30 0.02
Clear
Actual:
68 | 28 0.00
Average:
54 | 29 0.02
Snow
Actual:
56 | 28 T
Average:
54 | 29 0.02
Snow
Actual:
28 | 20 1.81
Average:
53 | 29 0.01
Partly Cloudy
Actual:
33 | 19 0.00
Average:
53 | 28 0.02
Scattered Clouds
Actual:
50 | 17 0.00
Average:
52 | 28 0.01
Partly Cloudy
Actual:
50 | 39 0.00
Average:
52 | 28 0.02
 

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
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 59 46 33 34 29 27 75 55 35 30.06 29.99 29.96 10 10 10 20 6 24 0.00  
2 55 46 37 36 27 23 62 46 30 30.20 30.08 29.99 10 10 6 20 6 24 0.03 Rain
3 41 39 36 36 31 29 85 75 64 30.48 30.21 29.96 10 10 6 24 13 29 0.22 Rain
4 51 42 33 32 28 24 82 60 38 30.58 30.51 30.40 10 10 10 13 4 16 0.01 Rain
5 64 46 27 33 26 16 85 51 16 30.49 30.41 30.33 10 10 10 18 4 23 0.00  
6 69 50 30 37 32 28 85 56 27 30.38 30.24 30.08 10 10 10 13 3 16 0.00  
7 73 54 34 34 30 25 76 47 17 30.06 29.87 29.72 10 10 10 25 6 35 0.00  
8 56 45 33 29 26 21 64 45 26 30.02 29.89 29.83 10 10 10 23 10 31 0.00  
9 57 45 33 34 31 26 76 57 38 30.15 30.03 29.91 10 10 10 10 5 15 0.00  
10 59 44 28 33 28 21 92 58 24 29.93 29.85 29.75 10 8 0 17 6 23 0.00 Fog
11 56 45 33 30 24 19 57 41 24 30.11 30.04 29.90 10 10 10 23 8 28 0.00  
12 51 40 28 29 25 22 78 59 39 30.21 30.15 30.12 10 10 10 9 2 10 0.00  
13 52 42 32 32 30 27 78 61 44 30.28 30.23 30.17 10 10 10 16 7 21 0.00  
14 49 41 32 34 30 25 76 58 39 30.51 30.40 30.27 10 10 10 16 8 18 0.01 Rain
15 56 40 23 31 24 18 88 55 22 30.52 30.38 30.21 10 10 1 15 3 18 0.00  
16 44 36 28 36 29 22 82 69 55 30.32 30.23 30.14 10 10 5 10 3 13 0.03 Rain
17 47 40 32 34 31 28 96 78 60 30.38 30.30 30.19 10 10 7 20 4 23 0.02 Rain
18 58 42 25 30 26 22 92 59 25 30.38 30.26 30.12 10 10 10 20 5 25 0.00  
19 62 53 43 28 24 22 49 36 23 30.10 30.04 29.95 10 10 10 25 10 31 0.00  
20 58 47 36 35 32 28 73 53 33 30.17 30.13 30.07 10 10 10 15 3 20 0.00  
21 64 48 32 35 32 28 85 60 34 30.29 30.21 30.15 10 10 10 14 2 17 0.00  
22 68 50 31 36 32 29 89 57 24 30.30 30.21 30.13 10 10 9 9 1 12 0.00  
23 63 47 30 34 30 26 85 59 32 30.31 30.25 30.20 10 10 10 10 3 12 0.00  
24 61 46 31 35 32 27 89 63 36 30.33 30.25 30.17 10 10 10 7 1 7 0.00  
25 66 47 28 33 29 26 85 55 24 30.35 30.30 30.21 10 10 9 8 1 9 0.00  
26 68 48 28 30 24 18 78 46 14 30.41 30.28 30.12 10 10 10 15 3 20 0.00  
27 56 42 28 29 25 22 75 54 32 30.28 30.06 29.89 10 9 2 30 9 39 T Snow
28 28 24 20 19 15 12 84 76 68 30.41 30.27 30.14 10 5 0 25 12 30 1.81 Fog , Snow
29 33 26 19 22 17 13 84 71 58 30.30 30.15 30.04 10 10 10 12 3 14 0.00  
30 50 34 17 27 21 13 84 60 36 30.08 30.03 29.96 10 10 9 17 4 23 0.00  
31 50 45 39 30 26 22 60 50 40 30.10 30.00 29.94 10 10 10 31 14 40 0.00