Weather History for Fort Collins, CO

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Month of May, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 84 °F 63 °F 44 °F
Mean Temperature 64 °F 52 °F 40 °F
Min Temperature 55 °F 40 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 24 13 1 403
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 4 0 128
Dew Point  
Dew Point 57 °F 35 °F 10 °F
Precipitation  
Precipitation 0.78 in 0.09 in 0.00 in 2.65 in
Snowdepth - - - -
Wind  
Wind 28 mph 7 mph 0 mph
Gust Wind 40 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.37 in 29.90 in 29.32 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 14, 2011 Rise Set
Actual Time 5:44 AM MDT 8:08 PM MDT
Civil Twilight 5:14 AM MDT 8:39 PM MDT
Nautical Twilight 4:35 AM MDT 9:17 PM MDT
Astronomical Twilight 3:53 AM MDT 10:00 PM MDT
Moon 5:17 PM MDT (5/14) 3:33 AM MDT (5/14)
Length of Visible Light 15h 25m
Length of Day
14h 23m
Waxing Gibbous, 90% of the Moon is Illuminated
May 14
Waxing Gibbous
May 17
Full
May 24
Last Quarter
Jun 1
New
Jun 8
First Quarter

Weather History Calendar

Precipitation Actual month total 2.65 Average Month Total: 7.59
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Scattered Clouds
Actual:
51 | 30 0.00
Average:
63 | 37 0.22
Partly Cloudy
Actual:
51 | 30 0.00
Average:
64 | 37 0.22
Scattered Clouds
Actual:
66 | 28 0.00
Average:
64 | 37 0.22
Partly Cloudy
Actual:
64 | 39 0.00
Average:
64 | 38 0.21
Clear
Actual:
69 | 33 0.00
Average:
65 | 38 0.21
Clear
Actual:
75 | 35 0.00
Average:
65 | 38 0.20
Clear
Actual:
82 | 42 0.00
Average:
65 | 38 0.20
Clear
Actual:
84 | 41 0.00
Average:
66 | 38 0.19
Clear
Actual:
82 | 46 0.00
Average:
66 | 39 0.18
Thunderstorm
Actual:
71 | 39 0.10
Average:
66 | 39 0.17
Thunderstorm
Actual:
44 | 37 0.75
Average:
67 | 40 0.17
Overcast
Actual:
48 | 39 0.78
Average:
67 | 40 0.16
Scattered Clouds
Actual:
68 | 39 0.00
Average:
67 | 41 0.15
Mostly Cloudy
Actual:
48 | 39 0.00
Average:
68 | 41 0.14
Overcast
Actual:
48 | 35 0.00
Average:
68 | 42 0.13
Partly Cloudy
Actual:
60 | 39 0.00
Average:
68 | 42 0.13
Partly Cloudy
Actual:
57 | 41 0.07
Average:
68 | 43 1.24
Overcast
Actual:
53 | 42 0.32
Average:
69 | 43 0.11
Overcast
Actual:
48 | 37 0.45
Average:
69 | 43 0.11
Thunderstorm
Actual:
59 | 37 0.04
Average:
69 | 44 0.10
Partly Cloudy
Actual:
66 | 39 0.00
Average:
70 | 44 0.10
Scattered Clouds
Actual:
73 | 55 0.00
Average:
70 | 44 0.49
Partly Cloudy
Actual:
71 | 50 0.00
Average:
71 | 45 0.10
Thunderstorm
Actual:
55 | 42 0.04
Average:
72 | 45 0.49
Partly Cloudy
Actual:
64 | 44 0.00
Average:
72 | 46 0.10
Partly Cloudy
Actual:
62 | 42 0.00
Average:
73 | 46 0.10
Partly Cloudy
Actual:
69 | 46 0.00
Average:
73 | 46 0.11
Partly Cloudy
Actual:
62 | 46 0.01
Average:
73 | 46 0.12
Mostly Cloudy
Actual:
69 | 48 0.09
Average:
73 | 46 0.13
Thunderstorm
Actual:
68 | 51 0.00
Average:
73 | 46 0.14
Clear
Actual:
78 | 44 0.00
Average:
73 | 46 1.25
 

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
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 51 40 30 30 18 10 75 41 24 30.24 30.15 30.12 10 10 10 17 5 23 0.00  
2 51 40 30 30 25 18 87 57 28 30.37 30.31 30.25 10 10 10 16 6 28 0.00  
3 66 47 28 28 23 18 87 44 16 30.22 30.14 30.04 10 10 10 14 6 18 0.00  
4 64 52 39 36 30 21 75 44 19 30.16 30.09 30.05 10 10 10 22 9 33 0.00  
5 69 51 33 32 25 16 87 46 15 30.32 30.22 30.01 10 10 10 14 5 18 0.00  
6 75 55 35 34 27 21 66 36 14 29.96 29.85 29.77 10 10 10 12 4 21 0.00  
7 82 62 42 36 33 23 66 38 12 29.89 29.83 29.70 10 10 10 18 5 25 0.00  
8 84 62 41 34 25 16 57 27 10 29.74 29.63 29.48 10 10 10 14 4 21 0.00  
9 82 64 46 30 26 21 50 26 10 29.58 29.48 29.32 10 10 9 21 6 37 0.00  
10 71 55 39 45 24 16 87 33 12 29.81 29.68 29.61 10 10 10 22 8 33 0.10 Thunderstorm
11 44 40 37 39 37 36 93 88 76 29.97 29.89 29.83 10 9 3 26 17 31 0.75 Thunderstorm
12 48 44 39 43 39 36 93 87 71 30.15 30.04 29.94 10 9 5 20 10 24 0.78  
13 68 54 39 45 39 34 93 65 32 30.29 30.24 30.17 10 10 10 12 5 - 0.00  
14 48 44 39 37 35 32 87 71 54 30.27 30.23 30.18 10 10 10 12 6 - 0.00  
15 48 42 35 36 34 30 93 75 62 30.24 30.19 30.12 10 10 9 12 8 - 0.00  
16 60 50 39 45 39 34 81 67 52 30.11 29.94 29.79 10 10 10 13 7 - 0.00  
17 57 49 41 46 41 37 93 77 59 29.80 29.71 29.67 10 10 9 14 8 18 0.07  
18 53 48 42 45 44 39 93 89 72 29.78 29.71 29.63 10 9 3 16 5 21 0.32  
19 48 42 37 43 39 36 100 89 66 29.74 29.70 29.66 10 8 3 16 11 18 0.45  
20 59 48 37 43 40 36 100 78 51 29.85 29.81 29.76 10 10 10 14 6 18 0.04 Thunderstorm
21 66 52 39 43 39 36 93 62 34 29.80 29.75 29.73 10 10 6 17 5 21 0.00  
22 73 64 55 41 36 32 47 35 25 29.84 29.81 29.78 10 10 9 26 10 32 0.00  
23 71 60 50 46 45 41 82 57 40 29.91 29.86 29.79 10 10 10 20 7 24 0.00  
24 55 48 42 48 45 41 93 84 67 29.86 29.80 29.75 10 10 5 14 5 23 0.04 Thunderstorm
25 64 54 44 45 42 37 93 62 40 30.10 30.02 29.91 10 10 10 16 8 20 0.00  
26 62 52 42 48 45 39 93 75 55 30.10 29.92 29.73 10 10 10 14 5 - 0.00  
27 69 58 46 45 41 37 87 57 35 29.88 29.83 29.76 10 10 10 16 8 22 0.00  
28 62 54 46 45 41 39 87 64 48 29.84 29.80 29.73 10 10 10 16 7 20 0.01  
29 69 58 48 55 51 45 100 86 60 29.67 29.56 29.42 10 6 2 14 7 - 0.09  
30 68 60 51 57 43 21 94 61 17 29.94 29.62 29.47 10 10 7 28 11 40 0.00 Thunderstorm
31 78 61 44 34 26 19 43 27 16 30.24 30.15 30.04 10 10 10 21 10 32 0.00