Heat Advisory HEAT ADVISORY - Collin Co.  - Dallas Co.

METRIC | IMPERIAL
Updated: 31-Jul-2021 @ 9:40am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 3.5°F than last hour.

84.5°F

Heat Index:  96.1°F
Warm
High Today
85.0°F
12:01 AM
Low Today
78.9°F
7:02 AM
Yest High
97.7°F
4:49 PM
Yest Low
77.8°F
7:06 AM
Sta* High
103.8°F
2011
Sta* Low
70.6°F
2013
* This Station's Records Since 8/2005
Partly cloudy, Dry Partly cloudy, Dry

Calm Wind:  SSE
0.0

Gusting to:
0.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
1.1 of 100
Tonight

Tonight: Mostly Clear
Mostly Clear
Saturday

Saturday: Sunny
Sunny
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Lo 78°F Hi 99°F Lo 78°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 1.4°F since last hour. 78.4°F
Last Hour: Increased 1.4°F since last hour. 1.4°F
High 9:36 AM: 78.6°F
Low 6:42 AM: 73.7°F
Record High: 85.6°F on
Jul-18-2021
Record Low: -15.3°F on
Feb-18-2019
Wetbulb: 80.1°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Jul Rain: 3.98 in
Jul to Date
  Avg:10
2.01 in
Jul to Date
  Diff from Avg:10
Over 1.97 in for the month 1.97 in
Jul Avg: 0.36 in
Diff from Avg: Over 3.62 in for the month 3.62 in
Season:1 24.44 in
YTD
  Avg:11
14.73 in
YTD
  Diff from Avg:11
Over 9.71 in for the year 9.71 in
Last Rain
Time/Date:
Jul-19-2021
at 7:31 PM
64 rain days in 2021
5 days in July
11 days since last rain
Current: SSE  0.0 mph
1Hr Average: Calm
Wind Run: 0.04 miles
Wind Gust
Current: 0.0 mph mph
Today: 4.0 mph 9:31 AM
Month: 44.9 mph Jul-11
Year: 44.9 mph Jul-11
Record Gust: 255.3 mph
Jul-11-2009
Sunlight:
14 hrs 4 min
7 sec
of Sunlight Today
Which is
1 min 45 sec shorter than
yesterday
(Noon) graph (Midnight)
Legend

Last Quarter
Last Quarter, 21 days, 13 hours, 25 minutes in cycle
49%
Illuminated
Humidity Barometer
Current: Decreased 6% since last hour. 82%
Last Hour: Decreased 6% since last hour. 6%
High 8:03 AM: 88%
Low 12:01 AM: 72%
Record High: 100%
Oct-15-2006
Record Low: 0%
Oct-20-2019
Current: No Change 29.968 inHg
Last Hour: Steady
High 9:01 AM: 29.978 in.
Low 2:24 AM: 29.921 in.
Record High: 30.965 inHg
Jan-2-2008
Record Low: 29.226 inHg
Sep-8-2005
Cooling Degree Days Snow3 Heat Index Air
Today: 5.5
Jul: 539.1
2021 to Date: 1309.9
Heating Degree Days
2021 to Date: 1480.4
Today: 0.00 in
Yesterday: 0.00 in
Jul Snow: No Change 0.00 in
Jul Avg: 0.00 in
Diff from Avg: 0.00 in
Season Total:2 0.00 in
Snow Depth: 0.00 in
0 snow days in July
0 snow days this season.2
Average 1st Snow:
0
Current: 96.1°F
High 9:39am: 96.2°F
Yesterday: 117.0°F
Record: 133.5°F
Aug-16-2020
Quality
Index6:

63


Moderate
Density:
1.15 kg/m3
UV Summary/Forecast Current Solar Energy9
Jul-31

9.1
Aug-01

9.5
Aug-02

9.9
63 W/m2
18%
W/m2 SI
High Today:
9:33 AM
399  W/m2
Record:
1334 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Morning
YTD Avg Temp: 64.6°F
Sunrise: 6:40 am
Sunset: 8:27 pm
Moonrise: 12:40 am
Moonset: 1:58 pm
Full Moon: Jul-23-2021
New Moon: 13:51 UTC
Aug-08-2021
Updated at Midnight
Current ET: 0.03 in
7-Days Rain: 0.00 in
7-Days ET: 1.26 in
7-Day:  1.256 in water in deficit of what evaporated in last 7 days. 1.256 in
July:  7.5 in water in deficit of what evaporated this month. 7.5 in
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HIGHS: LOWS:
110.1°F
Aug-3-2011
1.6°F
Feb-16-2021
Daytime Records
  1F°F
Aug-03-2011
  1F°F
Feb-15-2021
Nitetime Records
  9F°F
Aug-04-2011
  6F°F
Feb-16-2021
ICN:3 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.7 | RCP:98%
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured usually around 7AM and 7PM.   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Air Quality Index is provided by the Texas Commission on Environmental Quality and is updated hourly between the hours of 6AM and Midnight.   9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.   10 Historical average only to day 31 of just the month of July for this station since 2006.   11 Historical average rain this season to day 31 of July for this station since 2006.
 NWS Weather Forecast  -   Outlook Tonight & Saturday
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 78°F
NWS forecast: Mostly clear, with a low around 78. South wind around 5 mph.
Saturday

Saturday: Sunny
Sunny

Hi 99°F
NWS forecast: Sunny, with a high near 99. Heat index values as high as 111. South southwest wind 5 to 10 mph.
 NWS Short Term Weather Forecast
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday

Sunday: Sunny then Chance Showers And Thunderstorms
Sunny then Chance Showers And T-Storms
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
Monday

Monday: Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers And T-Storms Likely then Chance Showers And T-Storms
Monday
Night
Monday Night: Chance Showers And Thunderstorms then Mostly Clear
Chance Showers And T-Storms then Mostly Clear
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Lo 78°F Hi 99°F Lo 75°F Hi 93°F Lo 70°F Hi 94°F Lo 72°F
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