and then 
to Add to home screen OCTOBER 31ST, 1846-Eighty-seven pioneers were trapped by early snows in the Sierra Nevada Mountains that piled five feet deep, with 30 to 40 foot drifts. Just 47 persons survived the "Donner Pass Tragedy".
Rise 8:02AM
Set 6:13PM
Reporting Station : West Yellowstone Airport, MT
There is
1 Weather Alert
and
1 CustomWeatherAdvisory for your area.
1 Weather Alert
and
1 CustomWeatherAdvisory for your area.
28°F
Light snow. Partly sunny. Chilly
- 100%
- 8 mphSSW
-
100%
Humidity -
28°F
Dew Point -
20°F
Comfort Level -
1 mi
Visibility -
29.88 in
Barometric Pressure - Air Quality
Waning crescent
Rise7:16AM
Set5:41PM
No Airport Delays Found
Previously
| OCTOBER 31ST, 1846 |
Eighty-seven pioneers were trapped by early snows in the Sierra Nevada Mountains that piled five feet deep, with 30 to 40 foot drifts. Just 47 persons survived the "Donner Pass Tragedy". |
| OCTOBER 31ST, 1965 |
Fort Lauderdale FL was deluged with 13.81 inches of rain, which brought their rainfall total for the month of October to an all-time record of 42.43 inches. |
| OCTOBER 30TH, 1947 |
The Donora PA smog disaster finally came to an end. For five days an inversion trapped impurities in the lower atmosphere over the Monongahela Valley killing 20 persons, and leaving more than 2000 others sick. |
| OCTOBER 30TH, 1925 |
Nashville TN was blanketed with an inch of snow, their earliest measurable snow of record. |
| OCTOBER 29TH, 1942 |
A tornado struck the town of Berryville in northwest Arkansas killing 20 persons and causing half a million dollars damage. |
| OCTOBER 29TH, 1956 |
A violent tornado, or series of tornadoes, moved along a path more than 100 miles in length from south of North Platte NE into Rock County NE. It was an unusually late occurence so far north and west in the U.S. for such a storm. |
| OCTOBER 28TH, 1987 |
Thunderstorms over the San Joaquin Valley of California produced three-quarters of an inch of rain in thirty minutes at Placerville, and caused numerous power outages due to lightning. |
| OCTOBER 28TH, 1971 |
A severe early season blizzard raged across the Plateau Region and Rocky Mountain Region. Heavy snow blocked railroads and interstate highways, and record cold accompanied the storm. Lander WY received 27 inches of snow, and the temperature at Big Piney WY plunged to 15 degrees below zero. |
| OCTOBER 27TH, 1764 |
A "very remarkable storm of snow with high winds" produced 22 inches at Rutland in central Massachusetts. |
| OCTOBER 27TH, 1929 |
A snowstorm dumped 27 inches upon Ishpeming MI in 24 hours to establish a state record. |
| OCTOBER 26TH, 1859 |
New York City had their earliest substantial snow of record as four inches blanketed the city. |
Wind Advisory
| Issued By | NWS Field Office | Broadcast Time | Mon, 29 Dec 2014 03:43:00 PST |
| Issuing Time | Mon, 29 Dec 2014 03:43:00 PST | Valid Until | Mon, 29 Dec 2014 03:43:00 PST |
Strong northerly winds are forecast to develop across the San Francisco Bay Area by midday Tuesday and continue through midday Wednesday. A strong..cold and dry storm system will sweep into northern and central California late Monday night and Tuesday morning. This system will generate strong and gusty north to northest winds across the region from midday Tuesday through midday Wednesday.
Rise 8:02AM
Set 6:13PM
Waning crescent
Rise7:16AM
Set5:41PM
No Airport Delays Found
| History | |||
| Weather Station: Helena Regional Airport , MT , US | |||
| October Data | Choose another month |
| Averages | |
|
Average High Temperature
28.94 °F
|
Average Low Temperature
8.96 °F
|
|
Average Mean Temp
19.04 °F
|
Average Dew Point
8.96 °F
|
|
Average Windspeed
10.35 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
71.0
|
Average Afternoon Relative Humidity
63.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
0.60
|
|
Average Snowfall (US Only)
8.98
|
|
| Daily Counts | |
|
Days With Precipitation
8
|
Days With Thunderstorms
*
|
|
Days With Fog
3
|
Days With Snow
8
|
Days With Lows Below Freezing
29
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
62.06 °F
|
Record Low
-41.98 °F
|
|
Record Wind Speed
67.77 mph
|
Record Monthly Snowfall
91.4 "
|
Record 24-hour Snowfall
8.98 "
|
Record Monthly Rainfall
2.80 "
|
Record 24-hour Rainfall
0.59 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
35.96 °F
|
Average Low Temperature
15.08 °F
|
|
Average Mean Temp
26.06 °F
|
Average Dew Point
15.08 °F
|
|
Average Windspeed
11.47 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
72.0
|
Average Afternoon Relative Humidity
56.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
0.40
|
|
Average Snowfall (US Only)
5.99
|
|
| Daily Counts | |
|
Days With Precipitation
7
|
Days With Thunderstorms
*
|
|
Days With Fog
2
|
Days With Snow
6
|
Days With Lows Below Freezing
26
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
68.00 °F
|
Record Low
-32.98 °F
|
|
Record Wind Speed
63.18 mph
|
Record Monthly Snowfall
50.8 "
|
Record 24-hour Snowfall
8.00 "
|
Record Monthly Rainfall
1.18 "
|
Record 24-hour Rainfall
0.51 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
42.98 °F
|
Average Low Temperature
21.02 °F
|
|
Average Mean Temp
33.08 °F
|
Average Dew Point
19.04 °F
|
|
Average Windspeed
11.47 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
72.0
|
Average Afternoon Relative Humidity
48.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
0.70
|
|
Average Snowfall (US Only)
8.00
|
|
| Daily Counts | |
|
Days With Precipitation
9
|
Days With Thunderstorms
*
|
|
Days With Fog
2
|
Days With Snow
7
|
Days With Lows Below Freezing
28
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
77.00 °F
|
Record Low
-29.92 °F
|
|
Record Wind Speed
59.71 mph
|
Record Monthly Snowfall
55.8 "
|
Record 24-hour Snowfall
8.98 "
|
Record Monthly Rainfall
1.62 "
|
Record 24-hour Rainfall
0.59 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
55.94 °F
|
Average Low Temperature
30.02 °F
|
|
Average Mean Temp
42.98 °F
|
Average Dew Point
26.06 °F
|
|
Average Windspeed
11.47 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
71.0
|
Average Afternoon Relative Humidity
39.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
0.90
|
|
Average Snowfall (US Only)
5.99
|
|
| Daily Counts | |
|
Days With Precipitation
8
|
Days With Thunderstorms
1
|
|
Days With Fog
1
|
Days With Snow
4
|
Days With Lows Below Freezing
18
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
84.92 °F
|
Record Low
1.04 °F
|
|
Record Wind Speed
57.41 mph
|
Record Monthly Snowfall
53.3 "
|
Record 24-hour Snowfall
13.00 "
|
Record Monthly Rainfall
2.99 "
|
Record 24-hour Rainfall
0.98 "
|
Record Minimum Monthly Precipitation
0.10 "
|
| Averages | |
|
Average High Temperature
64.94 °F
|
Average Low Temperature
39.92 °F
|
|
Average Mean Temp
53.06 °F
|
Average Dew Point
33.98 °F
|
|
Average Windspeed
11.47 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
73.0
|
Average Afternoon Relative Humidity
39.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
1.80
|
|
Average Snowfall (US Only)
2.01
|
|
| Daily Counts | |
|
Days With Precipitation
11
|
Days With Thunderstorms
4
|
|
Days With Fog
1
|
Days With Snow
1
|
Days With Lows Below Freezing
4
|
Days above 90° F (32.2° C)
*
|
| Records | |
|
Record High
91.94 °F
|
Record Low
17.06 °F
|
|
Record Wind Speed
68.88 mph
|
Record Monthly Snowfall
33.0 "
|
Record 24-hour Snowfall
13.00 "
|
Record Monthly Rainfall
6.11 "
|
Record 24-hour Rainfall
2.09 "
|
Record Minimum Monthly Precipitation
0.30 "
|
| Averages | |
|
Average High Temperature
73.94 °F
|
Average Low Temperature
46.94 °F
|
|
Average Mean Temp
60.98 °F
|
Average Dew Point
41.00 °F
|
|
Average Windspeed
11.47 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
73.0
|
Average Afternoon Relative Humidity
39.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
1.90
|
|
Average Snowfall (US Only)
*
|
|
| Daily Counts | |
|
Days With Precipitation
11
|
Days With Thunderstorms
7
|
|
Days With Fog
1
|
Days With Snow
*
|
Days With Lows Below Freezing
*
|
Days above 90° F (32.2° C)
2
|
| Records | |
|
Record High
100.04 °F
|
Record Low
30.02 °F
|
|
Record Wind Speed
64.29 mph
|
Record Monthly Snowfall
7.6 "
|
Record 24-hour Snowfall
2.99 "
|
Record Monthly Rainfall
4.29 "
|
Record 24-hour Rainfall
1.81 "
|
Record Minimum Monthly Precipitation
0.10 "
|
| Averages | |
|
Average High Temperature
82.94 °F
|
Average Low Temperature
51.98 °F
|
|
Average Mean Temp
68.00 °F
|
Average Dew Point
44.06 °F
|
|
Average Windspeed
10.35 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
67.0
|
Average Afternoon Relative Humidity
30.0
|
|
Typical Sky Cover
CLR
|
Average Precipitation (US Only)
1.10
|
|
Average Snowfall (US Only)
*
|
|
| Daily Counts | |
|
Days With Precipitation
7
|
Days With Thunderstorms
8
|
|
Days With Fog
*
|
Days With Snow
0
|
Days With Lows Below Freezing
0
|
Days above 90° F (32.2° C)
8
|
| Records | |
|
Record High
102.02 °F
|
Record Low
35.96 °F
|
|
Record Wind Speed
80.35 mph
|
Record Monthly Snowfall
* "
|
Record 24-hour Snowfall
* "
|
Record Monthly Rainfall
3.90 "
|
Record 24-hour Rainfall
1.42 "
|
Record Minimum Monthly Precipitation
0.10 "
|
| Averages | |
|
Average High Temperature
82.04 °F
|
Average Low Temperature
51.08 °F
|
|
Average Mean Temp
66.02 °F
|
Average Dew Point
42.98 °F
|
|
Average Windspeed
9.18 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
67.0
|
Average Afternoon Relative Humidity
30.0
|
|
Typical Sky Cover
CLR
|
Average Precipitation (US Only)
1.20
|
|
Average Snowfall (US Only)
0.00
|
|
| Daily Counts | |
|
Days With Precipitation
8
|
Days With Thunderstorms
8
|
|
Days With Fog
*
|
Days With Snow
0
|
Days With Lows Below Freezing
*
|
Days above 90° F (32.2° C)
6
|
| Records | |
|
Record High
105.08 °F
|
Record Low
32.00 °F
|
|
Record Wind Speed
60.88 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
4.22 "
|
Record 24-hour Rainfall
1.81 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
69.98 °F
|
Average Low Temperature
41.00 °F
|
|
Average Mean Temp
55.94 °F
|
Average Dew Point
35.96 °F
|
|
Average Windspeed
10.35 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
72.0
|
Average Afternoon Relative Humidity
36.0
|
|
Typical Sky Cover
CLR
|
Average Precipitation (US Only)
1.00
|
|
Average Snowfall (US Only)
2.01
|
|
| Daily Counts | |
|
Days With Precipitation
7
|
Days With Thunderstorms
2
|
|
Days With Fog
1
|
Days With Snow
1
|
Days With Lows Below Freezing
3
|
Days above 90° F (32.2° C)
1
|
| Records | |
|
Record High
98.96 °F
|
Record Low
17.96 °F
|
|
Record Wind Speed
53.94 mph
|
Record Monthly Snowfall
35.5 "
|
Record 24-hour Snowfall
13.00 "
|
Record Monthly Rainfall
3.39 "
|
Record 24-hour Rainfall
1.62 "
|
Record Minimum Monthly Precipitation
0.10 "
|
| Averages | |
|
Average High Temperature
57.92 °F
|
Average Low Temperature
30.92 °F
|
|
Average Mean Temp
44.96 °F
|
Average Dew Point
28.94 °F
|
|
Average Windspeed
10.35 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
73.0
|
Average Afternoon Relative Humidity
43.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
0.60
|
|
Average Snowfall (US Only)
2.01
|
|
| Daily Counts | |
|
Days With Precipitation
6
|
Days With Thunderstorms
*
|
|
Days With Fog
1
|
Days With Snow
2
|
Days With Lows Below Freezing
17
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
84.92 °F
|
Record Low
-2.92 °F
|
|
Record Wind Speed
53.94 mph
|
Record Monthly Snowfall
27.9 "
|
Record 24-hour Snowfall
7.01 "
|
Record Monthly Rainfall
2.72 "
|
Record 24-hour Rainfall
0.79 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
42.08 °F
|
Average Low Temperature
21.02 °F
|
|
Average Mean Temp
32.00 °F
|
Average Dew Point
19.94 °F
|
|
Average Windspeed
10.35 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
73.0
|
Average Afternoon Relative Humidity
58.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
0.50
|
|
Average Snowfall (US Only)
5.99
|
|
| Daily Counts | |
|
Days With Precipitation
7
|
Days With Thunderstorms
*
|
|
Days With Fog
2
|
Days With Snow
5
|
Days With Lows Below Freezing
26
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
71.96 °F
|
Record Low
-38.92 °F
|
|
Record Wind Speed
60.88 mph
|
Record Monthly Snowfall
83.8 "
|
Record 24-hour Snowfall
18.99 "
|
Record Monthly Rainfall
1.50 "
|
Record 24-hour Rainfall
0.59 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
32.00 °F
|
Average Low Temperature
12.02 °F
|
|
Average Mean Temp
21.92 °F
|
Average Dew Point
12.92 °F
|
|
Average Windspeed
10.35 mph
|
Average Wind Direction
270.0
|
|
Average Morning Relative Humidity
72.0
|
Average Afternoon Relative Humidity
66.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
0.60
|
|
Average Snowfall (US Only)
8.98
|
|
| Daily Counts | |
|
Days With Precipitation
8
|
Days With Thunderstorms
*
|
|
Days With Fog
4
|
Days With Snow
8
|
Days With Lows Below Freezing
30
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
64.04 °F
|
Record Low
-38.02 °F
|
|
Record Wind Speed
57.41 mph
|
Record Monthly Snowfall
58.4 "
|
Record 24-hour Snowfall
10.01 "
|
Record Monthly Rainfall
1.50 "
|
Record 24-hour Rainfall
0.51 "
|
Record Minimum Monthly Precipitation
* "
|
Rise 8:02AM
Set 6:13PM
Waning crescent
Rise7:16AM
Set5:41PM
No Airport Delays Found
| Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
| Thursday |  |
Fire danger very low | 17% | 18% |
| Friday | |
Fire danger very low | 17% | 18% |
| Saturday | |
Fire danger very low | 17% | 18% |
| Sunday | |
Fire danger very low | 17% | 18% |
| Monday | |
Fire danger very low | 17% | 18% |
| Tuesday | |
Fire danger very low | 17% | 18% |
Rise 8:02AM
Set 6:13PM
Waning crescent
Rise7:16AM
Set5:41PM
No Airport Delays Found
Rise 8:02AM
Set 6:13PM
Waning crescent
Rise7:16AM
Set5:41PM
No Airport Delays Found
Snow conditions provided by SnoCountry Mountain Reports™