and then 
to Add to home screen MAY 23RD, 1882-Eastern Iowa receives 6 in (15 cm) of snow during late season snowstorm.
Rise 5:47AM
Set 8:55PM
Reporting Station : West Yellowstone Airport, MT
There are
2 Weather Alerts
and
1 CustomWeatherAdvisory for your area.
2 Weather Alerts
and
1 CustomWeatherAdvisory for your area.
-1°C
Ice fog. Chilly.
- 100%
- 20 km/hSW
-
100%
Humidity -
-1°C
Dew Point -
-7°C
Comfort Level -
5 km
Visibility -
1009.49 mb
Barometric Pressure - Air Quality
Full moon
Rise9:45PM
Set5:27AM
No Airport Delays Found
Previously
| MAY 23RD, 1882 |
Eastern Iowa receives 6 in (15 cm) of snow during late season snowstorm. |
| MAY 23RD, 1989 |
Severe thunderstorms developing along a cold front resulted in 98 reports of large hail and damaging winds in the Northern Plains and Upper Mississippi Valley. Golf ball size hail caused a million dollars damage around Buffalo City WI, baseball size hail was reported at Northfield MN and Randolph MN, and thunderstorm winds gusted to 95 mph at Dunkerton IA. |
| MAY 22ND, 1987 |
A powerful tornado virtually wiped the small southwest Texas community of Saragosa off the map. The twister destroyed eighty- five percent of the structures in the town killing thirty persons and injuring 121 others in the town of population 183. The tornado hurled trucks and autos through adobe and wood- frame homes, with some vehicles blown 500 feet. |
| MAY 22ND, 1832 |
Kennebec River discharges 140,000 cu. ft. per second during a flood at Waterville, ME. |
| MAY 21ST, 1860 |
A swarm of tornadoes occurred in the Ohio Valley. Tornadoes struck the cities of Louisville KY, Cincinnati OH, Chillicothe OH and Marietta OH causing a million dollars damage. |
| MAY 21ST, 1896 |
The mercury soared to 124 degrees at Salton CA to establish a U.S. record for May. |
| MAY 20TH, 1916 |
On the same day on this year and again in 1917 and 1918, tornadoes strike Codell, KS. |
| MAY 20TH, 1957 |
A tornado touched down to the southwest of Kansas City and traveled a distance of seventy-one miles cutting a swath of near total destruction through the southeastern suburbs of Ruskin Heights and Hickman Mills. The tornado claimed the lives of forty-five persons, and left hundreds homeless. It was the worst weather disaster of record for Kansas City. About all that remained of one house was a small table and a fish bowl atop, with the fish still swimming about inside the bowl, rather unconcerned. |
| MAY 19TH, 1955 |
Lake Maloya NM received 11.28 inches of rain in 24 hours to establish a state record. |
| MAY 19TH, 1780 |
The infamous "dark day" in New England tradition. At noon it was nearly as dark as night. Chickens went to roost, and many persons were fearful of divine wrath. The phenomena was caused by forest fires to the west of New England. |
| MAY 18TH, 1980 |
Mount Saint Helens (in Washington State) erupted spewing ash and smoke sixty-three thousand feet into the air. Heavy ash covered the ground to the immediate northwest, and small particles were carried to the Atlantic coast. |
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 5:47AM
Set 8:55PM
Full moon
Rise9:45PM
Set5:27AM
No Airport Delays Found
| History | |||
| Weather Station: Helena Regional Airport , MT , US | |||
| May Data | Choose another month |
| Averages | |
|
Average High Temperature
-1.70 °C
|
Average Low Temperature
-12.80 °C
|
|
Average Mean Temp
-7.20 °C
|
Average Dew Point
-12.80 °C
|
|
Average Windspeed
16.70 km/h
|
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)
1.52
|
|
Average Snowfall (US Only)
22.80
|
|
| 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
16.70 °C
|
Record Low
-41.10 °C
|
|
Record Wind Speed
109.30 km/h
|
Record Monthly Snowfall
91.4 cm
|
Record 24-hour Snowfall
22.80 cm
|
Record Monthly Rainfall
71 mm
|
Record 24-hour Rainfall
15 mm
|
Record Minimum Monthly Precipitation
* mm
|
| Averages | |
|
Average High Temperature
2.20 °C
|
Average Low Temperature
-9.40 °C
|
|
Average Mean Temp
-3.30 °C
|
Average Dew Point
-9.40 °C
|
|
Average Windspeed
18.50 km/h
|
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)
1.02
|
|
Average Snowfall (US Only)
15.20
|
|
| 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
20.00 °C
|
Record Low
-36.10 °C
|
|
Record Wind Speed
101.90 km/h
|
Record Monthly Snowfall
50.8 cm
|
Record 24-hour Snowfall
20.30 cm
|
Record Monthly Rainfall
30 mm
|
Record 24-hour Rainfall
13 mm
|
Record Minimum Monthly Precipitation
* mm
|
| Averages | |
|
Average High Temperature
6.10 °C
|
Average Low Temperature
-6.10 °C
|
|
Average Mean Temp
0.60 °C
|
Average Dew Point
-7.20 °C
|
|
Average Windspeed
18.50 km/h
|
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)
1.78
|
|
Average Snowfall (US Only)
20.30
|
|
| 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
25.00 °C
|
Record Low
-34.40 °C
|
|
Record Wind Speed
96.30 km/h
|
Record Monthly Snowfall
55.8 cm
|
Record 24-hour Snowfall
22.80 cm
|
Record Monthly Rainfall
41 mm
|
Record 24-hour Rainfall
15 mm
|
Record Minimum Monthly Precipitation
* mm
|
| Averages | |
|
Average High Temperature
13.30 °C
|
Average Low Temperature
-1.10 °C
|
|
Average Mean Temp
6.10 °C
|
Average Dew Point
-3.30 °C
|
|
Average Windspeed
18.50 km/h
|
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)
2.28
|
|
Average Snowfall (US Only)
15.20
|
|
| 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
29.40 °C
|
Record Low
-17.20 °C
|
|
Record Wind Speed
92.60 km/h
|
Record Monthly Snowfall
53.3 cm
|
Record 24-hour Snowfall
33.00 cm
|
Record Monthly Rainfall
76 mm
|
Record 24-hour Rainfall
25 mm
|
Record Minimum Monthly Precipitation
0.25 mm
|
| Averages | |
|
Average High Temperature
18.30 °C
|
Average Low Temperature
4.40 °C
|
|
Average Mean Temp
11.70 °C
|
Average Dew Point
1.10 °C
|
|
Average Windspeed
18.50 km/h
|
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)
4.57
|
|
Average Snowfall (US Only)
5.10
|
|
| 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
33.30 °C
|
Record Low
-8.30 °C
|
|
Record Wind Speed
111.10 km/h
|
Record Monthly Snowfall
33.0 cm
|
Record 24-hour Snowfall
33.00 cm
|
Record Monthly Rainfall
155 mm
|
Record 24-hour Rainfall
53 mm
|
Record Minimum Monthly Precipitation
0.76 mm
|
| Averages | |
|
Average High Temperature
23.30 °C
|
Average Low Temperature
8.30 °C
|
|
Average Mean Temp
16.10 °C
|
Average Dew Point
5.00 °C
|
|
Average Windspeed
18.50 km/h
|
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)
4.82
|
|
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
37.80 °C
|
Record Low
-1.10 °C
|
|
Record Wind Speed
103.70 km/h
|
Record Monthly Snowfall
7.6 cm
|
Record 24-hour Snowfall
7.60 cm
|
Record Monthly Rainfall
109 mm
|
Record 24-hour Rainfall
46 mm
|
Record Minimum Monthly Precipitation
0.25 mm
|
| Averages | |
|
Average High Temperature
28.30 °C
|
Average Low Temperature
11.10 °C
|
|
Average Mean Temp
20.00 °C
|
Average Dew Point
6.70 °C
|
|
Average Windspeed
16.70 km/h
|
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)
2.79
|
|
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
38.90 °C
|
Record Low
2.20 °C
|
|
Record Wind Speed
129.60 km/h
|
Record Monthly Snowfall
* cm
|
Record 24-hour Snowfall
* cm
|
Record Monthly Rainfall
99 mm
|
Record 24-hour Rainfall
36 mm
|
Record Minimum Monthly Precipitation
0.25 mm
|
| Averages | |
|
Average High Temperature
27.80 °C
|
Average Low Temperature
10.60 °C
|
|
Average Mean Temp
18.90 °C
|
Average Dew Point
6.10 °C
|
|
Average Windspeed
14.80 km/h
|
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)
3.05
|
|
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
40.60 °C
|
Record Low
0.00 °C
|
|
Record Wind Speed
98.20 km/h
|
Record Monthly Snowfall
0.0 cm
|
Record 24-hour Snowfall
0.00 cm
|
Record Monthly Rainfall
107 mm
|
Record 24-hour Rainfall
46 mm
|
Record Minimum Monthly Precipitation
* mm
|
| Averages | |
|
Average High Temperature
21.10 °C
|
Average Low Temperature
5.00 °C
|
|
Average Mean Temp
13.30 °C
|
Average Dew Point
2.20 °C
|
|
Average Windspeed
16.70 km/h
|
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)
2.54
|
|
Average Snowfall (US Only)
5.10
|
|
| 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
37.20 °C
|
Record Low
-7.80 °C
|
|
Record Wind Speed
87.00 km/h
|
Record Monthly Snowfall
35.5 cm
|
Record 24-hour Snowfall
33.00 cm
|
Record Monthly Rainfall
86 mm
|
Record 24-hour Rainfall
41 mm
|
Record Minimum Monthly Precipitation
0.25 mm
|
| Averages | |
|
Average High Temperature
14.40 °C
|
Average Low Temperature
-0.60 °C
|
|
Average Mean Temp
7.20 °C
|
Average Dew Point
-1.70 °C
|
|
Average Windspeed
16.70 km/h
|
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)
1.52
|
|
Average Snowfall (US Only)
5.10
|
|
| 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
29.40 °C
|
Record Low
-19.40 °C
|
|
Record Wind Speed
87.00 km/h
|
Record Monthly Snowfall
27.9 cm
|
Record 24-hour Snowfall
17.80 cm
|
Record Monthly Rainfall
69 mm
|
Record 24-hour Rainfall
20 mm
|
Record Minimum Monthly Precipitation
* mm
|
| Averages | |
|
Average High Temperature
5.60 °C
|
Average Low Temperature
-6.10 °C
|
|
Average Mean Temp
0.00 °C
|
Average Dew Point
-6.70 °C
|
|
Average Windspeed
16.70 km/h
|
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)
1.27
|
|
Average Snowfall (US Only)
15.20
|
|
| 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
22.20 °C
|
Record Low
-39.40 °C
|
|
Record Wind Speed
98.20 km/h
|
Record Monthly Snowfall
83.8 cm
|
Record 24-hour Snowfall
48.20 cm
|
Record Monthly Rainfall
38 mm
|
Record 24-hour Rainfall
15 mm
|
Record Minimum Monthly Precipitation
* mm
|
| Averages | |
|
Average High Temperature
0.00 °C
|
Average Low Temperature
-11.10 °C
|
|
Average Mean Temp
-5.60 °C
|
Average Dew Point
-10.60 °C
|
|
Average Windspeed
16.70 km/h
|
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)
1.52
|
|
Average Snowfall (US Only)
22.80
|
|
| 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
17.80 °C
|
Record Low
-38.90 °C
|
|
Record Wind Speed
92.60 km/h
|
Record Monthly Snowfall
58.4 cm
|
Record 24-hour Snowfall
25.40 cm
|
Record Monthly Rainfall
38 mm
|
Record 24-hour Rainfall
13 mm
|
Record Minimum Monthly Precipitation
* mm
|
Rise 5:47AM
Set 8:55PM
Full moon
Rise9:45PM
Set5:27AM
No Airport Delays Found
| Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
| Thursday |  |
Fire danger very low | 31% | 41% |
| Friday | |
Fire danger very low | 31% | 41% |
| Saturday | |
Fire danger very low | 31% | 41% |
| Sunday | |
Fire danger very low | 31% | 41% |
| Monday |  |
Fire danger low | 31% | 41% |
| Tuesday |  |
Fire danger moderate | 31% | 41% |
Rise 5:47AM
Set 8:55PM
Full moon
Rise9:45PM
Set5:27AM
No Airport Delays Found
Rise 5:47AM
Set 8:55PM
Full moon
Rise9:45PM
Set5:27AM
No Airport Delays Found
Snow conditions provided by SnoCountry Mountain Reports™