JULY 20TH, 1977-At Johnstown, PA, where over 2,000 perished in a flood on May 31, 1889, another resulting from 8.5 in (216 mm) of rain falling in seven hours, drowns 76 and destroys property valued at $424 million.
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Set 8:31PM
Reporting Station : Leesburg / Godfrey, VA
Partly sunny. Warm.
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Set 8:31PM
Waxing gibbous
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SATURDAY MORNING
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JULY 20TH, 1977-At Johnstown, PA, where over 2,000 perished in a flood on May 31, 1889, another resulting from 8.5 in (216 mm) of rain falling in seven hours, drowns 76 and destroys property valued at $424 million.
JULY 20TH, 1977 |
At Johnstown, PA, where over 2,000 perished in a flood on May 31, 1889, another resulting from 8.5 in (216 mm) of rain falling in seven hours, drowns 76 and destroys property valued at $424 million. |
JULY 20TH, 1930 |
The temperature at Washington D.C. soared to an all-time record of 106 degrees. The next day Millsboro reached 110 degrees to set a record for the state of Delaware. July 1930 was one of the hottest and driest summers in the U.S., particularly in the Missouri Valley where severe drought conditions developed. Toward the end of the month state records were set for Kentucky with 114 degrees, and Mississippi with 115 degrees. |
JULY 19TH, 1886 |
Along the Florida peninsula, between Cedar Keys and Jacksonville, the third hurricane within a month causes extensive damages. |
JULY 19TH, 1974 |
A severe thunderstorm with winds to 80 mph and up to two inches of rain washed out four to five foot deep sections of roadway in Lake Havasu City AZ. Three persons in a station wagon died as it was carried 3000 feet down a wash by a ten foot wall of water. |
JULY 18TH, 1889 |
A cloudburst in West Virginia along the small creeks in Wirt County, Jackson County and Wood County claimed twenty lives. Rockport WV reported nineteen inches of rain in two hours and ten minutes that Thursday evening. Tygart Creek rose 22 feet in one hour, and villages were swept away on Tygart, Slate, Tucker, and Sandy Creeks. |
JULY 18TH, 1942 |
A record deluge occurred at Smethport in northern Pennsylvania, with 30.7 inches in just six hours. The downpours and resultant flooding in Pennsylvania were devastating. |
JULY 17TH, 1974 |
After striking a tree and passing through a chain, lightning kills Norma Jean, a 6500 lb. performing elephant tethered to a tree in the town square at Oquawka, IL where a circus had pitched a big top. |
JULY 17TH, 1941 |
A prolonged heat wave over Washington State finally came to an end. Lightning from untimely thunderstorms was responsible for 598 forest fires. |
JULY 16TH, 1946 |
The temperature at Medford OR soared to an all-time high of 115 degrees to begin a two week heat wave. During that Oregon heat wave the mercury hit 100 degrees at Sexton Summit for the only time in forty years of records. |
JULY 16TH, 1975 |
An early afternoon thunderstorm raked the east side of Tucson AZ with gale force winds, heavy rain, and numerous lightning strikes. A thirteen year old boy was swept through a forty foot long culvert by raging waters before being rescued. |
JULY 15TH, 1980 |
The suburbs of Minneapolis are hammered by powerful thunderstorms, hailstorms and small tornadoes, leaving 100,000 without power. Downward rushing winds cause an estimated $43 million in damages in Dakota County. |
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 6:00AM
Set 8:31PM
Waxing gibbous
Rise8:32PM
Set4:37AM
SATURDAY MORNING
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History | |||
Weather Station: Washington-Dulles International Airport , VA , US | |||
July Data | Choose another month |
Averages | |
Average High Temperature
39.92 °F
|
Average Low Temperature
21.02 °F
|
Average Mean Temp
30.92 °F
|
Average Dew Point
21.02 °F
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
Average Morning Relative Humidity
76.0
|
Average Afternoon Relative Humidity
56.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
2.80
|
Average Snowfall (US Only)
8.00
|
|
Daily Counts | |
Days With Precipitation
10
|
Days With Thunderstorms
*
|
Days With Fog
12
|
Days With Snow
4
|
Days With Lows Below Freezing
26
|
Days above 90° F (32.2° C)
0
|
Records | |
Record High
75.02 °F
|
Record Low
-18.04 °F
|
Record Wind Speed
62.00 mph
|
Record Monthly Snowfall
73.6 "
|
Record 24-hour Snowfall
10.99 "
|
Record Monthly Rainfall
6.62 "
|
Record 24-hour Rainfall
1.62 "
|
Record Minimum Monthly Precipitation
0.40 "
|
Averages | |
Average High Temperature
44.06 °F
|
Average Low Temperature
23.00 °F
|
Average Mean Temp
33.98 °F
|
Average Dew Point
21.92 °F
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
Average Morning Relative Humidity
77.0
|
Average Afternoon Relative Humidity
52.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
2.80
|
Average Snowfall (US Only)
7.01
|
|
Daily Counts | |
Days With Precipitation
9
|
Days With Thunderstorms
*
|
Days With Fog
10
|
Days With Snow
3
|
Days With Lows Below Freezing
23
|
Days above 90° F (32.2° C)
0
|
Records | |
Record High
78.98 °F
|
Record Low
-14.08 °F
|
Record Wind Speed
52.82 mph
|
Record Monthly Snowfall
71.1 "
|
Record 24-hour Snowfall
23.01 "
|
Record Monthly Rainfall
5.79 "
|
Record 24-hour Rainfall
2.09 "
|
Record Minimum Monthly Precipitation
0.20 "
|
Averages | |
Average High Temperature
55.04 °F
|
Average Low Temperature
32.00 °F
|
Average Mean Temp
44.06 °F
|
Average Dew Point
30.02 °F
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
Average Morning Relative Humidity
77.0
|
Average Afternoon Relative Humidity
48.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.10
|
Average Snowfall (US Only)
2.99
|
|
Daily Counts | |
Days With Precipitation
10
|
Days With Thunderstorms
1
|
Days With Fog
11
|
Days With Snow
2
|
Days With Lows Below Freezing
17
|
Days above 90° F (32.2° C)
0
|
Records | |
Record High
89.06 °F
|
Record Low
6.08 °F
|
Record Wind Speed
60.88 mph
|
Record Monthly Snowfall
27.9 "
|
Record 24-hour Snowfall
5.99 "
|
Record Monthly Rainfall
5.79 "
|
Record 24-hour Rainfall
1.81 "
|
Record Minimum Monthly Precipitation
1.00 "
|
Averages | |
Average High Temperature
64.94 °F
|
Average Low Temperature
39.92 °F
|
Average Mean Temp
53.06 °F
|
Average Dew Point
39.02 °F
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
Average Morning Relative Humidity
77.0
|
Average Afternoon Relative Humidity
46.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.10
|
Average Snowfall (US Only)
*
|
|
Daily Counts | |
Days With Precipitation
10
|
Days With Thunderstorms
2
|
Days With Fog
11
|
Days With Snow
*
|
Days With Lows Below Freezing
6
|
Days above 90° F (32.2° C)
*
|
Records | |
Record High
91.94 °F
|
Record Low
17.06 °F
|
Record Wind Speed
67.77 mph
|
Record Monthly Snowfall
10.2 "
|
Record 24-hour Snowfall
2.99 "
|
Record Monthly Rainfall
7.29 "
|
Record 24-hour Rainfall
2.09 "
|
Record Minimum Monthly Precipitation
0.30 "
|
Averages | |
Average High Temperature
73.94 °F
|
Average Low Temperature
50.00 °F
|
Average Mean Temp
62.96 °F
|
Average Dew Point
51.08 °F
|
Average Windspeed
8.06 mph
|
Average Wind Direction
180.0
|
Average Morning Relative Humidity
82.0
|
Average Afternoon Relative Humidity
53.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
4.00
|
Average Snowfall (US Only)
*
|
|
Daily Counts | |
Days With Precipitation
12
|
Days With Thunderstorms
4
|
Days With Fog
15
|
Days With Snow
0
|
Days With Lows Below Freezing
*
|
Days above 90° F (32.2° C)
1
|
Records | |
Record High
96.98 °F
|
Record Low
28.04 °F
|
Record Wind Speed
52.82 mph
|
Record Monthly Snowfall
* "
|
Record 24-hour Snowfall
* "
|
Record Monthly Rainfall
10.28 "
|
Record 24-hour Rainfall
3.11 "
|
Record Minimum Monthly Precipitation
0.80 "
|
Averages | |
Average High Temperature
82.94 °F
|
Average Low Temperature
59.00 °F
|
Average Mean Temp
71.06 °F
|
Average Dew Point
60.98 °F
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
Average Morning Relative Humidity
84.0
|
Average Afternoon Relative Humidity
54.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.90
|
Average Snowfall (US Only)
0.00
|
|
Daily Counts | |
Days With Precipitation
10
|
Days With Thunderstorms
6
|
Days With Fog
16
|
Days With Snow
0
|
Days With Lows Below Freezing
0
|
Days above 90° F (32.2° C)
5
|
Records | |
Record High
100.04 °F
|
Record Low
35.96 °F
|
Record Wind Speed
73.47 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
18.20 "
|
Record 24-hour Rainfall
10.99 "
|
Record Minimum Monthly Precipitation
0.50 "
|
Averages | |
Average High Temperature
87.08 °F
|
Average Low Temperature
64.04 °F
|
Average Mean Temp
75.92 °F
|
Average Dew Point
64.94 °F
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
Average Morning Relative Humidity
85.0
|
Average Afternoon Relative Humidity
54.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.50
|
Average Snowfall (US Only)
0.00
|
|
Daily Counts | |
Days With Precipitation
10
|
Days With Thunderstorms
6
|
Days With Fog
19
|
Days With Snow
0
|
Days With Lows Below Freezing
0
|
Days above 90° F (32.2° C)
11
|
Records | |
Record High
104.00 °F
|
Record Low
41.00 °F
|
Record Wind Speed
78.06 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
7.09 "
|
Record 24-hour Rainfall
2.60 "
|
Record Minimum Monthly Precipitation
0.90 "
|
Averages | |
Average High Temperature
86.00 °F
|
Average Low Temperature
62.96 °F
|
Average Mean Temp
73.94 °F
|
Average Dew Point
64.04 °F
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
Average Morning Relative Humidity
88.0
|
Average Afternoon Relative Humidity
55.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
4.00
|
Average Snowfall (US Only)
0.00
|
|
Daily Counts | |
Days With Precipitation
10
|
Days With Thunderstorms
5
|
Days With Fog
21
|
Days With Snow
0
|
Days With Lows Below Freezing
0
|
Days above 90° F (32.2° C)
8
|
Records | |
Record High
104.00 °F
|
Record Low
37.94 °F
|
Record Wind Speed
67.77 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
10.72 "
|
Record 24-hour Rainfall
4.69 "
|
Record Minimum Monthly Precipitation
0.80 "
|
Averages | |
Average High Temperature
78.98 °F
|
Average Low Temperature
55.04 °F
|
Average Mean Temp
66.92 °F
|
Average Dew Point
57.92 °F
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
Average Morning Relative Humidity
89.0
|
Average Afternoon Relative Humidity
55.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.40
|
Average Snowfall (US Only)
0.00
|
|
Daily Counts | |
Days With Precipitation
8
|
Days With Thunderstorms
2
|
Days With Fog
19
|
Days With Snow
0
|
Days With Lows Below Freezing
*
|
Days above 90° F (32.2° C)
3
|
Records | |
Record High
98.96 °F
|
Record Low
30.02 °F
|
Record Wind Speed
53.94 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
11.31 "
|
Record 24-hour Rainfall
5.52 "
|
Record Minimum Monthly Precipitation
0.60 "
|
Averages | |
Average High Temperature
68.00 °F
|
Average Low Temperature
42.08 °F
|
Average Mean Temp
55.04 °F
|
Average Dew Point
44.96 °F
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
Average Morning Relative Humidity
88.0
|
Average Afternoon Relative Humidity
52.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.30
|
Average Snowfall (US Only)
*
|
|
Daily Counts | |
Days With Precipitation
8
|
Days With Thunderstorms
1
|
Days With Fog
15
|
Days With Snow
*
|
Days With Lows Below Freezing
5
|
Days above 90° F (32.2° C)
*
|
Records | |
Record High
89.96 °F
|
Record Low
15.08 °F
|
Record Wind Speed
51.65 mph
|
Record Monthly Snowfall
2.5 "
|
Record 24-hour Snowfall
0.98 "
|
Record Monthly Rainfall
9.22 "
|
Record 24-hour Rainfall
4.10 "
|
Record Minimum Monthly Precipitation
* "
|
Averages | |
Average High Temperature
57.02 °F
|
Average Low Temperature
33.98 °F
|
Average Mean Temp
46.04 °F
|
Average Dew Point
35.06 °F
|
Average Windspeed
11.47 mph
|
Average Wind Direction
315.0
|
Average Morning Relative Humidity
83.0
|
Average Afternoon Relative Humidity
54.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.20
|
Average Snowfall (US Only)
0.98
|
|
Daily Counts | |
Days With Precipitation
9
|
Days With Thunderstorms
1
|
Days With Fog
12
|
Days With Snow
1
|
Days With Lows Below Freezing
15
|
Days above 90° F (32.2° C)
0
|
Records | |
Record High
84.02 °F
|
Record Low
8.96 °F
|
Record Wind Speed
52.82 mph
|
Record Monthly Snowfall
27.9 "
|
Record 24-hour Snowfall
10.99 "
|
Record Monthly Rainfall
7.80 "
|
Record 24-hour Rainfall
2.40 "
|
Record Minimum Monthly Precipitation
0.20 "
|
Averages | |
Average High Temperature
44.96 °F
|
Average Low Temperature
26.06 °F
|
Average Mean Temp
35.96 °F
|
Average Dew Point
26.06 °F
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
Average Morning Relative Humidity
78.0
|
Average Afternoon Relative Humidity
57.0
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.20
|
Average Snowfall (US Only)
4.02
|
|
Daily Counts | |
Days With Precipitation
10
|
Days With Thunderstorms
*
|
Days With Fog
12
|
Days With Snow
2
|
Days With Lows Below Freezing
24
|
Days above 90° F (32.2° C)
0
|
Records | |
Record High
78.08 °F
|
Record Low
-4.00 °F
|
Record Wind Speed
62.00 mph
|
Record Monthly Snowfall
60.9 "
|
Record 24-hour Snowfall
10.99 "
|
Record Monthly Rainfall
6.70 "
|
Record 24-hour Rainfall
2.92 "
|
Record Minimum Monthly Precipitation
0.40 "
|
Rise 6:00AM
Set 8:31PM
Waxing gibbous
Rise8:32PM
Set4:37AM
SATURDAY MORNING
IAD / No delays
Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
Saturday | Fire danger high | 19% | 24% | |
Sunday | Fire danger moderate | 19% | 24% | |
Monday | Fire danger very low | 19% | 24% | |
Tuesday | Fire danger very low | 19% | 24% | |
Wednesday | Fire danger very low | 19% | 24% | |
Thursday | Fire danger very low | 19% | 24% |
Rise 6:00AM
Set 8:31PM
Waxing gibbous
Rise8:32PM
Set4:37AM
SATURDAY MORNING
IAD / No delays
Rise 6:00AM
Set 8:31PM
Waxing gibbous
Rise8:32PM
Set4:37AM
SATURDAY MORNING
IAD / No delays