LOCAL CLIMATOLOGICAL DATA
Month: 12 / 2009
Station Location: ThorntonWeather.com, Thornton, CO
Lat.039:54:58 Long.0104:55:49
Elevation: 5193 Feet Above Sea Level
Temperature
(Farenheit)
Degree Days
Base 65 Degrees
  Snow/
Ice On
Ground
(in.)
Rain
(in.)
Pressure
(inches)
Wind-
speed
(mph)
D
A
Y
Max Min Avg Diff
From
Normal
Avg
Dew
Point
Avg
Wet
Bulb
Heating Cooling Sign.
Cond.
Sun
Hours
Max
Solar
w/m2
Max
UV
Snow-
fall
Water
Equiv.
Avg
Sea
Level
Avg
Speed
Max
Speed
Avg
Dir.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
054.9
022.5
016.6
037.7
035.5
020.1
012.3
008.7
011.4
028.2
040.7
049.2
051.4
048.8
051.3
051.6
055.1
043.6
050.7
057.5
060.8
041.3
030.0
021.7
026.9
033.5
027.6
033.5
032.9
034.0
040.3
22.5
08.6
02.8
05.2
11.6
05.8
03.8
-04.9
-09.9
03.6
02.8
15.4
23.6
26.1
15.8
29.2
24.6
21.0
15.7
19.9
30.0
29.1
13.9
02.4
-00.5
20.1
10.3
05.4
15.7
14.7
08.1
35.3
15.7
10.4
19.3
22.0
13.3
06.6
03.2
-00.6
12.7
17.2
33.7
39.3
37.5
33.3
40.5
37.9
30.7
30.0
35.4
43.3
34.7
23.7
11.9
17.0
25.6
21.1
18.1
24.0
24.0
22.3
+1.7
-16.4
-18.0
-11.8
-9.8
-17.4
-----
-----
-18.2
-13.0
-10.8
+3.4
+2.4
+10.6
+10.5
+10.4
+7.7
+3.7
+0.3
+5.6
+16.5
+10.5
-0.0
-12.4
-8.1
-2.0
-3.3
-8.5
-4.4
-5.0
-----
18.3
10.5
02.8
04.8
11.3
07.9
01.3
-02.4
-07.1
00.4
07.0
16.4
22.3
16.2
15.5
21.4
22.9
20.0
15.7
21.3
18.0
23.0
20.2
04.7
07.5
18.4
13.7
10.8
16.4
16.4
10.9
29.9
14.5
09.0
16.2
19.3
12.2
05.7
02.4
-01.5
10.5
15.0
28.5
33.8
30.8
28.0
34.3
33.0
27.3
25.8
30.7
35.3
30.8
22.7
10.5
14.9
23.5
19.2
16.4
21.9
21.9
19.4
29.6
49.2
54.5
45.6
42.9
51.6
58.3
61.7
65.6
52.2
47.7
31.2
25.6
27.4
31.6
24.5
27.0
34.3
35.0
29.5
21.7
30.2
41.2
53.0
47.9
39.3
43.8
46.9
41.0
41.0
42.7
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
-----
COLD
COLD
COLD
COLD
COLD
COLD
COLD
COLD
COLD
COLD
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
SNOW
COLD
COLD
COLD
SNOW
COLD
COLD
-----
-----
COLD
02.9
01.2
02.7
04.8
04.6
00.4
02.8
02.0
05.0
05.5
05.4
04.0
04.1
05.4
05.2
00.0
05.2
05.1
05.4
05.5
05.7
00.1
00.2
04.1
00.5
03.9
05.8
05.5
02.2
04.3
05.3
606.0
603.0
613.0
573.0
540.0
408.0
557.0
591.0
476.0
482.0
603.0
594.0
613.0
490.0
452.0
178.0
494.0
441.0
466.0
455.0
587.0
214.0
260.0
469.0
292.0
538.0
473.0
482.0
601.0
522.0
478.0
02.2
00.9
02.2
02.2
02.2
00.8
01.5
01.6
02.5
02.3
02.5
02.2
01.8
01.7
01.9
00.7
01.9
01.7
01.8
01.8
02.0
01.2
01.7
02.3
01.6
02.4
02.7
02.6
02.2
01.9
02.1
00.00
01.81
00.00
00.00
00.00
04.21
00.00
00.79
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
06.81
00.59
00.00
01.10
00.00
00.00
00.00
00.00
00.00
00.00
00.04
00.00
00.00
00.00
00.10
00.00
00.01
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.05
00.26
00.01
00.01
00.03
00.00
00.00
00.00
00.00
00.00
29.89
30.28
30.53
30.25
30.01
30.22
30.29
30.07
30.29
30.29
30.22
29.95
29.65
29.99
30.28
30.21
30.18
30.31
30.26
30.19
29.91
29.75
30.01
30.30
30.17
30.21
30.40
30.58
30.17
30.04
30.38
04.9
02.9
01.6
04.0
03.4
04.3
03.4
04.5
02.4
03.3
01.7
06.2
05.2
06.2
02.4
02.3
03.1
02.2
02.0
02.6
04.3
02.8
04.2
02.1
02.3
02.0
02.7
00.8
00.7
02.1
02.3
25.3
18.4
10.3
20.7
18.4
14.9
12.7
18.4
14.9
28.8
14.9
35.6
28.8
38.0
13.8
19.6
25.3
13.8
13.8
16.1
29.9
14.9
23.0
16.1
11.5
11.5
11.5
06.9
09.2
13.8
12.7
~024
~014
~121
~210
~339
~002
~331
~356
~158
~219
~108
~254
~210
~263
~191
~218
~292
~142
~191
~183
~274
~320
~002
~169
~334
~179
~159
~165
~149
~102
~228
  36.5

12.7

23.8

-4.9

12.5

20.9

041.1

000.0

  Total
14.0
    Total
15.31
Total
0.51
30.170

03.1

18.2

269


Maximum Temperature: 60.8
Minimum Temperature: -09.9
Maximum Pressure: 30.70
Minimum Pressure: 29.52
Maximum Daily Precip: 0.26 in
Maximum Daily Snowfall: 6.81 in

Gale: 0 Day(s)
Maximum Wind: 38.0
Wind Run: 2275.1miles
Heating Degree Days: 1273.9
Cooling Degree Days: 000.0

Max. Temp. >= 90 Was 0 Day(s)
Max. Temp. <= 32 Was 11 Day(s)
Min. Temp. <= 32 Was 31 Day(s)
Min. Temp. <= 0 Was 3 Day(s)
Precipitation >=.01inch Was 8 Day(s)
Precipitation >=.10inch Was 2 Day(s)
Snowfall >=1.0inch Was 4 Day(s)