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.
Rise 5:44AM
Set 7:50PM
Reporting Station : Ontario International Airport, CA
Partly sunny. Cool.
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Rise 5:44AM
Set 7:50PM
Waxing gibbous
Rise6:24PM
Set4:22AM
TUESDAY MORNING
ONT / No delays
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, 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. |
MAY 18TH, 1825 |
A tornado (said to have crossed all of the state of Ohio) smashed into the log cabin settlement of Burlington, northeast of Columbus. |
MAY 17TH, 1883 |
A three day flood in the Black Hills of western South Dakota resulted in a million dollars damage at Rapid City. |
MAY 17TH, 1979 |
A reading of 12 degrees at Mauna Kea Observatory established an all-time record low for the state of Hawaii. |
MAY 16TH, 1952 |
High winds in the Wasatch Canyon of Utah struck Ogden and Brigham City. Winds at Hill Air Force Base gusted to 92 mph. |
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 5:44AM
Set 7:50PM
Waxing gibbous
Rise6:24PM
Set4:22AM
TUESDAY MORNING
ONT / No delays
History | |||
Weather Station: Ontario International Airport , CA , US | |||
May 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
* "
|
Rise 5:44AM
Set 7:50PM
Waxing gibbous
Rise6:24PM
Set4:22AM
TUESDAY MORNING
ONT / No delays
Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
Tuesday | Fire danger high | 15% | 22% | |
Wednesday | Fire danger moderate | 15% | 22% | |
Thursday | Fire danger moderate | 15% | 22% | |
Friday | Fire danger moderate | 15% | 22% | |
Saturday | Fire danger moderate | 15% | 22% | |
Sunday | Fire danger moderate | 15% | 22% |
Rise 5:44AM
Set 7:50PM
Waxing gibbous
Rise6:24PM
Set4:22AM
TUESDAY MORNING
ONT / No delays
Rise 5:44AM
Set 7:50PM
Waxing gibbous
Rise6:24PM
Set4:22AM
TUESDAY MORNING
ONT / No delays