|
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|
Helena, MT
on Sunday, December 7, 2008
| Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
°F
|
23°F
|
|
| Max Temperature |
50°F
|
33°F
|
54°F
(1887) |
| Min Temperature |
27°F
|
13°F
|
-28°F
(1972) |
| Degree Days |
| Heating Degree Days |
26 |
42 |
|
| Month to date heating degree days |
217 |
286 |
|
| Since 1 July heating degree days |
1812 |
2316 |
|
| Cooling Degree Days |
0 |
0 |
|
| Month to date cooling degree days |
0 |
0 |
|
| Year to date cooling degree days |
490 |
277 |
|
| Moisture |
| Dew Point |
24°F
| | |
| Average Humidity |
59 |
|
|
| Maximum Humidity |
78 |
|
|
| Minimum Humidity |
39 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.01 in
|
0.51 in
(1929) |
| Month to date precipitation |
0.16 |
0.08 |
|
| Year to date precipitation |
8.68 |
10.94 |
|
| Snow |
| Snow |
0.00 in
|
in
|
in
() |
| Month to date snowfall |
2.3 |
|
|
| Since 1 July snowfall |
3.7 |
|
|
| Snow Depth |
0.00 in
|
| |
| Wind |
| Wind Speed |
5 mph
| | |
| Max Wind Speed |
23 mph
| | |
| Max Gust Speed |
30 mph
| | |
| Visibility |
10 miles
| | |
| Events |
| | |
|
| Key: T is trace of precipitation, MM is missing value |
|
Source: NWS Daily Summary |
| Time(MST) | Temperature | Dew Point | Humidity | Pressure | Visibility | Wind Direction | Wind Speed | Gust Speed | Precipitation | Events | Conditions |
|---|
| 12:53 AM |
30.9°F
|
23.0°F
|
72% |
30.05 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 2:53 AM |
30.0°F
|
21.0°F
|
69% |
30.03 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 3:53 AM |
30.9°F
|
23.0°F
|
72% |
30.01 in
|
10.0 miles
|
Variable |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 5:53 AM |
30.0°F
|
23.0°F
|
75% |
29.98 in
|
10.0 miles
|
North |
6.9 mph
|
-
|
N/A |
|
Overcast |
| 6:53 AM |
30.0°F
|
25.0°F
|
82% |
30.01 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 7:53 AM |
32.0°F
|
25.0°F
|
75% |
29.98 in
|
10.0 miles
|
South |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 8:53 AM |
33.1°F
|
26.1°F
|
75% |
29.95 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 9:53 AM |
35.1°F
|
25.0°F
|
67% |
29.93 in
|
10.0 miles
|
SW |
3.5 mph
|
-
|
N/A |
|
Clear |
| 10:53 AM |
37.9°F
|
26.1°F
|
62% |
29.91 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 11:53 AM |
41.0°F
|
26.1°F
|
55% |
29.89 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 12:53 PM |
44.1°F
|
27.0°F
|
51% |
29.85 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 1:35 PM |
46.4°F
|
24.8°F
|
43% |
29.73 in
|
10.0 miles
|
West |
15.0 mph
|
-
|
N/A |
|
Partly Cloudy |
| 1:53 PM |
48.0°F
|
25.0°F
|
41% |
29.83 in
|
10.0 miles
|
WSW |
13.8 mph
|
-
|
N/A |
|
Partly Cloudy |
| 2:53 PM |
46.9°F
|
28.0°F
|
48% |
29.82 in
|
10.0 miles
|
West |
9.2 mph
|
20.7 mph
|
N/A |
|
Clear |
| 3:53 PM |
44.1°F
|
30.0°F
|
58% |
29.83 in
|
10.0 miles
|
West |
10.4 mph
|
-
|
N/A |
|
Clear |
| 4:53 PM |
42.1°F
|
30.9°F
|
65% |
29.84 in
|
10.0 miles
|
West |
10.4 mph
|
-
|
N/A |
|
Clear |
| 5:53 PM |
42.1°F
|
32.0°F
|
67% |
29.83 in
|
10.0 miles
|
West |
11.5 mph
|
-
|
N/A |
|
Partly Cloudy |
| 6:53 PM |
39.9°F
|
30.9°F
|
70% |
29.83 in
|
10.0 miles
|
West |
11.5 mph
|
-
|
N/A |
|
Partly Cloudy |
| 7:53 PM |
39.9°F
|
30.0°F
|
68% |
29.84 in
|
10.0 miles
|
NNW |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 8:53 PM |
39.9°F
|
28.0°F
|
63% |
29.83 in
|
10.0 miles
|
WSW |
10.4 mph
|
-
|
N/A |
|
Scattered Clouds |
| 9:53 PM |
39.9°F
|
26.1°F
|
58% |
29.80 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 10:53 PM |
37.9°F
|
27.0°F
|
65% |
29.83 in
|
10.0 miles
|
West |
5.8 mph
|
-
|
N/A |
|
Clear |
| 11:53 PM |
37.0°F
|
26.1°F
|
65% |
29.85 in
|
10.0 miles
|
WSW |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
|
|
|
