Helena, MT

12:58 AM MDT on May 28, 2017 (GMT -0600)
Helena Regional

Weather History for KHLN - May, 2015

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Month of May, 2015

  Max Avg Min Sum
Temperature  
Max Temperature 81 °F 65 °F 45 °F
Mean Temperature 65 °F 54 °F 43 °F
Min Temperature 52 °F 43 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 22 11 0 330
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 5 0 149
Dew Point  
Dew Point 54 °F 36 °F 7 °F
Precipitation  
Precipitation 0.86 in 0.08 in 0.00 in 2.36 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 30 mph 7 mph 0 mph
Gust Wind 38 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.02 in 29.67 in

Monthly Weather History Graph

Monthly Weather History Graph

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Astronomy

May. 25, 2015 Rise Set
Actual Time 5:43 AM MDT 9:06 PM MDT
Civil Twilight 5:06 AM MDT 9:43 PM MDT
Nautical Twilight 4:17 AM MDT 10:33 PM MDT
Astronomical Twilight 3:15 AM MDT 11:36 PM MDT
Moon 1:10 PM MDT (5/25) 1:55 AM MDT (5/25)
Length of Visible Light 16h 37m
Length of Day
15h 23m
Waxing Crescent, 50% of the Moon is Illuminated
May 25
Waxing Crescent
Jun 2
Full
Jun 9
Last Quarter
Jun 16
New
Jun 24
First Quarter

Daily Weather History & Observations

2015 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 75 58 40 32 21 9 57 33 9 30.11 29.97 29.82 10 10 10 23 7 28 0.00  
2 74 57 39 34 22 9 49 30 10 29.93 29.82 29.75 10 10 10 26 10 33 0.00  
3 70 54 37 31 26 19 64 40 15 30.04 29.97 29.90 10 10 10 13 7 19 0.00  
4 78 59 39 37 30 26 64 40 16 30.00 29.89 29.78 10 10 10 15 5 18 0.00  
5 71 57 42 50 38 28 89 58 26 29.84 29.79 29.71 10 9 5 25 4 34 0.17 Rain , Thunderstorm
6 62 54 45 35 27 23 54 39 23 29.99 29.90 29.83 10 10 10 18 8 23 0.00  
7 54 46 38 31 27 25 62 49 35 30.18 30.09 29.99 10 10 10 21 9 27 0.00  
8 57 46 34 32 30 28 82 59 35 30.22 30.13 30.04 10 10 10 18 7 22 0.00  
9 63 49 34 31 26 20 82 52 22 30.27 30.22 30.16 10 10 10 21 7 24 0.00  
10 65 48 30 28 19 7 78 44 10 30.28 30.19 30.09 10 10 10 16 5 20 0.00  
11 67 50 33 29 23 18 56 36 15 30.12 30.03 29.93 10 10 10 18 7 24 0.00  
12 60 53 45 41 33 28 82 61 39 30.01 29.96 29.93 10 10 7 24 11 29 0.04 Rain
13 63 54 45 42 40 39 83 66 49 30.00 29.93 29.88 10 10 10 20 9 24 0.01 Rain
14 64 55 46 47 43 39 86 67 48 30.00 29.91 29.81 10 9 2 24 7 29 0.18 Rain , Thunderstorm
15 53 51 48 45 43 42 86 79 71 29.83 29.77 29.73 10 10 10 14 8 18 0.00  
16 49 46 43 46 42 37 93 85 76 30.06 29.80 29.67 10 8 3 25 11 34 0.86 Rain
17 45 43 40 38 35 32 82 74 65 30.43 30.27 30.03 10 10 10 22 11 28 0.00  
18 53 47 40 38 35 33 79 67 54 30.42 30.33 30.23 10 10 0 12 5 16 0.00  
19 60 53 46 39 37 35 71 56 40 30.28 30.21 30.14 10 10 10 20 7 23 0.00  
20 69 55 40 37 33 27 79 52 24 30.20 30.12 30.03 10 10 10 21 10 38 0.00  
21 73 57 40 47 38 30 77 54 31 30.09 30.01 29.93 10 10 8 22 6 27 T Rain
22 74 59 43 45 43 39 92 63 33 29.99 29.93 29.88 10 10 10 18 6 25 0.00  
23 58 54 49 49 46 41 83 72 61 30.12 30.05 29.94 10 10 7 18 8 21 0.08 Rain
24 68 58 48 48 44 41 80 60 40 30.12 30.04 29.96 10 10 10 18 7 32 0.02  
25 75 59 42 47 43 36 89 57 25 29.98 29.90 29.81 10 10 10 23 5 29 0.00  
26 74 63 52 50 46 41 89 60 31 29.98 29.93 29.88 10 10 6 22 6 25 0.09 Rain , Thunderstorm
27 67 59 50 49 46 42 93 69 45 30.06 30.01 29.96 10 9 3 16 4 21 0.51 Rain , Thunderstorm
28 61 56 50 50 47 43 83 73 62 30.35 30.18 30.02 10 9 1 21 7 26 0.23 Rain
29 72 60 48 52 46 43 83 61 38 30.34 30.18 30.05 10 10 4 30 7 36 0.16 Rain , Thunderstorm
30 70 60 50 53 50 45 89 65 40 30.09 30.02 29.96 10 10 10 21 4 26 0.01 Rain , Thunderstorm
31 81 65 49 54 49 44 86 61 35 30.01 29.93 29.84 10 10 8 24 5 32 T Rain , Thunderstorm