|
|
|
Helena, MT
on Thursday, December 4, 2008
| Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
°F
|
24°F
|
|
| Max Temperature |
23°F
|
34°F
|
64°F
(1918) |
| Min Temperature |
12°F
|
14°F
|
-24°F
(1972) |
| Degree Days |
| Heating Degree Days |
47 |
41 |
|
| Month to date heating degree days |
132 |
162 |
|
| Since 1 July heating degree days |
1727 |
2192 |
|
| Cooling Degree Days |
0 |
0 |
|
| Month to date cooling degree days |
0 |
0 |
|
| Year to date cooling degree days |
490 |
277 |
|
| Moisture |
| Dew Point |
9°F
| | |
| Average Humidity |
68 |
|
|
| Maximum Humidity |
80 |
|
|
| Minimum Humidity |
56 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.01 in
|
0.32 in
(1977) |
| Month to date precipitation |
0.16 |
0.05 |
|
| Year to date precipitation |
8.68 |
10.91 |
|
| Snow |
| Snow |
0.00 in
|
in
|
in
() |
| Month to date snowfall |
2.3 |
|
|
| Since 1 July snowfall |
3.7 |
|
|
| Snow Depth |
2.00 in
|
| |
| Wind |
| Wind Speed |
3 mph
| | |
| Max Wind Speed |
8 mph
| | |
| Max Gust Speed |
10 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 |
|---|
| 1:53 AM |
19.9°F
|
9.0°F
|
62% |
30.63 in
|
10.0 miles
|
West |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 2:53 AM |
19.0°F
|
9.0°F
|
65% |
30.63 in
|
10.0 miles
|
WNW |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 3:53 AM |
19.0°F
|
9.0°F
|
65% |
30.65 in
|
10.0 miles
|
West |
4.6 mph
|
-
|
N/A |
|
Overcast |
| 4:53 AM |
19.0°F
|
9.0°F
|
65% |
30.66 in
|
10.0 miles
|
WNW |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 5:53 AM |
19.0°F
|
9.0°F
|
65% |
30.67 in
|
10.0 miles
|
West |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 6:49 AM |
15.8°F
|
6.8°F
|
68% |
30.45 in
|
10.0 miles
|
West |
6.9 mph
|
-
|
N/A |
|
Overcast |
| 6:53 AM |
15.1°F
|
7.0°F
|
70% |
30.69 in
|
10.0 miles
|
WSW |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 7:09 AM |
15.8°F
|
6.8°F
|
68% |
30.46 in
|
10.0 miles
|
WSW |
5.8 mph
|
-
|
N/A |
|
Scattered Clouds |
| 7:53 AM |
14.0°F
|
6.1°F
|
71% |
30.70 in
|
10.0 miles
|
SW |
4.6 mph
|
-
|
N/A |
|
Clear |
| 8:53 AM |
12.9°F
|
5.0°F
|
71% |
30.71 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 9:53 AM |
16.0°F
|
6.1°F
|
65% |
30.70 in
|
10.0 miles
|
West |
3.5 mph
|
-
|
N/A |
|
Clear |
| 10:53 AM |
19.0°F
|
7.0°F
|
59% |
30.69 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 11:53 AM |
19.0°F
|
8.1°F
|
62% |
30.66 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 12:53 PM |
21.9°F
|
9.0°F
|
58% |
30.63 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 1:53 PM |
21.9°F
|
9.0°F
|
58% |
30.59 in
|
10.0 miles
|
ESE |
6.9 mph
|
-
|
N/A |
|
Clear |
| 2:53 PM |
21.9°F
|
10.0°F
|
60% |
30.56 in
|
10.0 miles
|
ESE |
3.5 mph
|
-
|
N/A |
|
Clear |
| 3:53 PM |
21.9°F
|
9.0°F
|
58% |
30.57 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 4:53 PM |
21.0°F
|
9.0°F
|
60% |
30.56 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 5:53 PM |
18.0°F
|
9.0°F
|
68% |
30.55 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 6:53 PM |
16.0°F
|
10.0°F
|
77% |
30.53 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 7:53 PM |
15.1°F
|
9.0°F
|
77% |
30.53 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 8:53 PM |
12.9°F
|
7.0°F
|
77% |
30.51 in
|
10.0 miles
|
South |
3.5 mph
|
-
|
N/A |
|
Clear |
| 9:53 PM |
14.0°F
|
8.1°F
|
77% |
30.50 in
|
10.0 miles
|
WNW |
4.6 mph
|
-
|
N/A |
|
Clear |
| 10:53 PM |
17.1°F
|
10.0°F
|
74% |
30.46 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 11:53 PM |
18.0°F
|
10.9°F
|
74% |
30.45 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Partly Cloudy |
|
|
|
