Reporting Station : Ontario International Airport, CA

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72°F

Sunny. Mild.

  • 23%
  • 10 mphWSW
  • 23%
    Humidity
  • 32°F
    Dew Point
  • 75°F
    Comfort Level
  • 10 mi
    Visibility
  • 29.96 in

    Barometric Pressure
  • Air Quality
Current Time : 4:37 PM PDT  Refresh Nearest / Estimated
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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".

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.

History
Weather Station: Ontario International Airport , CA , US
October Data Choose another month
Averages
Average High Temperature
66.02 °F
Average Low Temperature
42.08 °F
Average Mean Temp
53.96 °F
Average Dew Point
39.02 °F
Average Windspeed
6.88 mph
Average Wind Direction
0.0
Average Morning Relative Humidity
45.0
Average Afternoon Relative Humidity
74.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
7
Days With Thunderstorms
1
Days With Fog
13
Days With Snow
*
Days With Lows Below Freezing
2
Days above 90° F (32.2° C)
*
Records
Record High
89.96 °F
Record Low
24.98 °F
Record Wind Speed
63.18 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
68.00 °F
Average Low Temperature
44.96 °F
Average Mean Temp
57.02 °F
Average Dew Point
41.00 °F
Average Windspeed
9.18 mph
Average Wind Direction
270.0
Average Morning Relative Humidity
44.0
Average Afternoon Relative Humidity
75.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
7
Days With Thunderstorms
1
Days With Fog
14
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
0
Records
Record High
89.06 °F
Record Low
28.94 °F
Record Wind Speed
57.41 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
68.00 °F
Average Low Temperature
46.94 °F
Average Mean Temp
57.92 °F
Average Dew Point
44.96 °F
Average Windspeed
10.35 mph
Average Wind Direction
248.0
Average Morning Relative Humidity
50.0
Average Afternoon Relative Humidity
79.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
9
Days With Thunderstorms
1
Days With Fog
19
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
*
Records
Record High
96.98 °F
Record Low
30.02 °F
Record Wind Speed
57.41 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
75.02 °F
Average Low Temperature
50.00 °F
Average Mean Temp
62.96 °F
Average Dew Point
46.04 °F
Average Windspeed
10.35 mph
Average Wind Direction
270.0
Average Morning Relative Humidity
42.0
Average Afternoon Relative Humidity
75.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
4
Days With Thunderstorms
*
Days With Fog
16
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
2
Records
Record High
109.94 °F
Record Low
35.06 °F
Record Wind Speed
51.65 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
78.98 °F
Average Low Temperature
55.04 °F
Average Mean Temp
66.92 °F
Average Dew Point
51.98 °F
Average Windspeed
10.35 mph
Average Wind Direction
248.0
Average Morning Relative Humidity
44.0
Average Afternoon Relative Humidity
77.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
3
Days With Thunderstorms
*
Days With Fog
20
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
4
Records
Record High
107.06 °F
Record Low
37.94 °F
Record Wind Speed
58.53 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
86.00 °F
Average Low Temperature
59.00 °F
Average Mean Temp
73.04 °F
Average Dew Point
55.04 °F
Average Windspeed
10.35 mph
Average Wind Direction
248.0
Average Morning Relative Humidity
39.0
Average Afternoon Relative Humidity
76.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
1
Days With Thunderstorms
*
Days With Fog
19
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
10
Records
Record High
114.08 °F
Record Low
42.98 °F
Record Wind Speed
57.41 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
91.94 °F
Average Low Temperature
62.96 °F
Average Mean Temp
78.08 °F
Average Dew Point
59.00 °F
Average Windspeed
10.35 mph
Average Wind Direction
248.0
Average Morning Relative Humidity
35.0
Average Afternoon Relative Humidity
73.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
1
Days With Thunderstorms
*
Days With Fog
16
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
21
Records
Record High
114.08 °F
Record Low
51.98 °F
Record Wind Speed
52.82 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
91.94 °F
Average Low Temperature
64.04 °F
Average Mean Temp
78.08 °F
Average Dew Point
59.00 °F
Average Windspeed
11.47 mph
Average Wind Direction
270.0
Average Morning Relative Humidity
36.0
Average Afternoon Relative Humidity
72.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
1
Days With Thunderstorms
*
Days With Fog
17
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
22
Records
Record High
114.08 °F
Record Low
51.08 °F
Record Wind Speed
51.65 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
89.06 °F
Average Low Temperature
62.06 °F
Average Mean Temp
75.92 °F
Average Dew Point
57.02 °F
Average Windspeed
10.35 mph
Average Wind Direction
270.0
Average Morning Relative Humidity
38.0
Average Afternoon Relative Humidity
71.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
2
Days With Thunderstorms
1
Days With Fog
16
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
15
Records
Record High
111.92 °F
Record Low
46.94 °F
Record Wind Speed
62.00 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
82.94 °F
Average Low Temperature
55.94 °F
Average Mean Temp
69.98 °F
Average Dew Point
51.08 °F
Average Windspeed
10.35 mph
Average Wind Direction
270.0
Average Morning Relative Humidity
37.0
Average Afternoon Relative Humidity
73.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
3
Days With Thunderstorms
1
Days With Fog
18
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
8
Records
Record High
109.94 °F
Record Low
39.92 °F
Record Wind Speed
59.71 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
73.04 °F
Average Low Temperature
46.94 °F
Average Mean Temp
60.98 °F
Average Dew Point
41.00 °F
Average Windspeed
6.88 mph
Average Wind Direction
0.0
Average Morning Relative Humidity
36.0
Average Afternoon Relative Humidity
69.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
4
Days With Thunderstorms
*
Days With Fog
13
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
1
Records
Record High
95.00 °F
Record Low
30.92 °F
Record Wind Speed
59.71 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Averages
Average High Temperature
66.92 °F
Average Low Temperature
42.08 °F
Average Mean Temp
55.04 °F
Average Dew Point
37.04 °F
Average Windspeed
6.88 mph
Average Wind Direction
0.0
Average Morning Relative Humidity
39.0
Average Afternoon Relative Humidity
70.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
5
Days With Thunderstorms
*
Days With Fog
12
Days With Snow
0
Days With Lows Below Freezing
1
Days above 90° F (32.2° C)
*
Records
Record High
98.96 °F
Record Low
24.08 °F
Record Wind Speed
67.77 mph
Record Monthly Snowfall
* "
Record 24-hour Snowfall
* "
Record Monthly Rainfall
* "
Record 24-hour Rainfall
* "
Record Minimum Monthly Precipitation
* "
Day   Reason Upper Soil Moisture Lower Soil Moisture
Thursday cw_fire_high
Fire danger high 13% 21%
Friday cw_fire_high
Fire danger high 13% 21%
Saturday cw_fire_low
Fire danger low 13% 21%
Sunday cw_fire_low
Fire danger low 13% 21%
Monday cw_fire_extreme
Fire danger extreme 13% 21%
Tuesday cw_fire_extreme
Fire danger extreme 13% 21%
Snow conditions provided by SnoCountry Mountain Reports™

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